151
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Marin Jarrin JR, Andrade-Vera S, Brito C, Ray L, Schuiteman MA. Early life history of the middling thread herring (Opisthonema medirastre) in the central Galápagos Islands. J Fish Biol 2022; 101:312-316. [PMID: 35596625 DOI: 10.1111/jfb.15106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
The authors estimated life-history parameters of a clupeid forage fish, Opisthonema medirastre, by sampling juveniles over the course of a year in the central region of the Galápagos Islands, Ecuador. They collected 160 juveniles on the south coast of Santa Cruz Island during the wet/warm season that were 16-48 mm standard length, were 30-88 days old, had hatched at the beginning of the wet/warm season and had grown at 0.4 mm day-1 . The results suggest that in Galápagos, O. medirastre reproduce during the wet/warm season mostly under neutral ENSO conditions.
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Affiliation(s)
- Jose R Marin Jarrin
- Telonicher Marine Lab, Department of Fisheries Biology, Cal Poly Humboldt, Trinidad, California, USA
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Galápagos Islands, Ecuador
| | - Solange Andrade-Vera
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Galápagos Islands, Ecuador
| | - Carla Brito
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Galápagos Islands, Ecuador
| | - Lana Ray
- Telonicher Marine Lab, Department of Fisheries Biology, Cal Poly Humboldt, Trinidad, California, USA
| | - Michelle A Schuiteman
- Telonicher Marine Lab, Department of Fisheries Biology, Cal Poly Humboldt, Trinidad, California, USA
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Galápagos Islands, Ecuador
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152
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Buddenhagen CE, Xing Y, Andrade-Piedra JL, Forbes GA, Kromann P, Navarrete I, Thomas-Sharma S, Choudhury RA, Andersen Onofre KF, Schulte-Geldermann E, Etherton BA, Plex Sulá AI, Garrett KA. Where to Invest Project Efforts for Greater Benefit: A Framework for Management Performance Mapping with Examples for Potato Seed Health. Phytopathology 2022; 112:1431-1443. [PMID: 34384240 DOI: 10.1094/phyto-05-20-0202-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Policymakers and donors often need to identify the locations where technologies are most likely to have important effects, to increase the benefits from agricultural development or extension efforts. Higher-quality information may help to target the high-benefit locations, but often actions are needed with limited information. The value of information (VOI) in this context is formalized by evaluating the results of decision making guided by a set of specific information compared with the results of acting without considering that information. We present a framework for management performance mapping that includes evaluating the VOI for decision making about geographic priorities in regional intervention strategies, in case studies of Andean and Kenyan potato seed systems. We illustrate the use of recursive partitioning, XGBoost, and Bayesian network models to characterize the relationships among seed health and yield responses and environmental and management predictors used in studies of seed degeneration. These analyses address the expected performance of an intervention based on geographic predictor variables. In the Andean example, positive selection of seed from asymptomatic plants was more effective at high altitudes in Ecuador. In the Kenyan example, there was the potential to target locations with higher technology adoption rates and with higher potato cropland connectivity, i.e., a likely more important role in regional epidemics. Targeting training to high management performance areas would often provide more benefits than would random selection of target areas. We illustrate how assessing the VOI can contribute to targeted development programs and support a culture of continuous improvement for interventions.[Formula: see text] Copyright © 2022 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
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Affiliation(s)
- C E Buddenhagen
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
- AgResearch, Ltd., Ruakura, Hamilton, New Zealand
| | - Y Xing
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
| | | | | | - P Kromann
- International Potato Center, Lima, Peru
- Field Crops, Wageningen University and Research, Lelystad, The Netherlands
| | - I Navarrete
- International Potato Center, Lima, Peru
- Centre for Crop Systems Analysis, Wageningen University and Research, Wageningen, The Netherlands
- Knowledge, Technology and Innovation, Wageningen University and Research, Wageningen, The Netherlands
| | - S Thomas-Sharma
- Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, U.S.A
| | - R A Choudhury
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
- School of Earth, Environment, Marine Science, University of Texas, Rio Grande Valley, U.S.A
| | - K F Andersen Onofre
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
- Department of Plant Pathology, Kansas State University, Manhattan, U.S.A
| | - E Schulte-Geldermann
- International Potato Center, Nairobi, Kenya
- Department of Agriculture, University of Applied Sciences Bingen, Bingen, Germany
| | - B A Etherton
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
| | - A I Plex Sulá
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
| | - K A Garrett
- Plant Pathology Department, University of Florida, Gainesville, U.S.A
- Food Systems Institute, University of Florida, Gainesville, U.S.A
- Emerging Pathogens Institute, University of Florida, Gainesville, U.S.A
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153
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Quirola-Amores P, Espinosa P, Oleas S, Hernandez I, Henriquez AR, Teran E. HIV Rapid Testing in the General Population and the Usefulness of PrEP in Ecuador: A Cost–Utility Analysis. Front Public Health 2022; 10:884313. [PMID: 35784197 PMCID: PMC9247332 DOI: 10.3389/fpubh.2022.884313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 05/23/2022] [Indexed: 11/14/2022] Open
Abstract
Introduction HIV is considered one of the most important chronic transmitted diseases worldwide. The Joint United Nations Program on HIV/AIDS in 2020 proposed the strategy “95–95–95” which goals to achieve a 95% of cases identified, receives ART, and will have achieved suppression of the virus. In Ecuador by 2020, according to the Ministry of Public Health, 45,056 persons are living with HIV, principally men between 15 and 49 years, and a mortality rate of 4.8/100,000 habitats. This study aims to determine the cost–utility of applying an early screening to a sexually active population vs. only a high-risk population and if the use of PrEP is justified depending on different contexts. Methods For the cost–utility evaluation, it was compared: (a) HIV screening performed only in the high-risk population vs. HIV screening in all population sexually active; and (b) the use of ART only for HIV treatment vs. ART as a treatment in diagnosed cases and the use of PrEP (only at a high-risk population of acquiring HIV). Calculation and weight of DALYs for HIV/SIDA were obtained through WHO guidelines. To generate the Markov model for HIV/AIDS, subjects were classified as symptomatic or asymptomatic, as well as the HIV deaths. Results Cost–benefit analysis (CUA) showed that ICER for early diagnosis had a negative value which means a saving if the strategy will be implemented as a regular test (–$591, –$4,360) and −108 and −934 DALYs, in the case of ART and PrEP, ICER the $30,541–$59,410, which resulted in more than the GDP's threshold and health years between 2,511 and 10,635 in the general population. With a reduction of 70% in the assigned budget for the early diagnosis, Ecuadorian people could lose between 4 and 6 DALYs, while if the budget reduces more than 50% to ART, it will generate a loss of 10–12 years of healthy life. Conclusion CUA demonstrates that an early diagnosis in a sexually active population is cost-beneficial. This, combined with ART or PrEP, is ideal to add years of healthy life.
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Affiliation(s)
- Paulina Quirola-Amores
- Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador
- Colegio de Ciencias de la Salud, Universidad San Francisco de Quito, Quito, Ecuador
| | - Pablo Espinosa
- Colegio de Ciencias de la Salud, Universidad San Francisco de Quito, Quito, Ecuador
- Facultad de Medicina, Medicina, Universidad de Las Américas, Quito, Ecuador
| | - Sebastian Oleas
- Instituto de Economía, Universidad San Francisco de Quito, Quito, Ecuador
| | - Isabel Hernandez
- Colegio de Ciencias de la Salud, Universidad San Francisco de Quito, Quito, Ecuador
| | | | - Enrique Teran
- Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador
- Colegio de Ciencias de la Salud, Universidad San Francisco de Quito, Quito, Ecuador
- *Correspondence: Enrique Teran
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154
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Tubón J, Barragán-Fonseca G, Lalaleo L, Calero-Cáceres W. Data on antibiograms and resistance genes of Enterobacterales isolated from ready-to-eat street food of Ambato, Ecuador. F1000Res 2022; 11:669. [PMID: 35844814 PMCID: PMC9257263 DOI: 10.12688/f1000research.117116.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/10/2022] [Indexed: 11/20/2022] Open
Abstract
Foodborne pathogens represent a significant cause of negative impacts on human health and the economy worldwide. Unfortunately, information about epidemiological insights in Latin American countries is scarce. The consumption of ready-to-eat street food in Ecuador is extensive, and information about the presence of foodborne pathogens, their virulence factors, and antimicrobial resistance is negligible. This data includes the occurrence, phenotypic antibiotic resistance profiles, and antibiotic resistance genes of Enterobacterales isolated from ready-to-eat street food in Ambato, central Ecuador during 2020 and 2021. The most common genera detected were
Escherichia coli,
Klebsiella spp., and
Cronobacter spp. Agar disk diffusion assays were performed to determine their phenotypic resistance. The presence of antibiotic resistance genes conferring resistance against colistin, β-Lactams, aminoglycosides, tetracyclines, sulfonamides, fluoroquinolones, and amphenicols was detected via polymerase chain reaction (PCR) amplification.
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Affiliation(s)
- Jessica Tubón
- UTA RAM One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, 180103, Ecuador
| | - Gabriela Barragán-Fonseca
- UTA RAM One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, 180103, Ecuador
| | - Liliana Lalaleo
- UTA RAM One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, 180103, Ecuador
| | - William Calero-Cáceres
- UTA RAM One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, 180103, Ecuador
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155
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Puyana-Romero V, Cueto JL, Caizapasto-Sánchez IS, Marcillo-Calispa GE. Assessing the Soundscape Appropriateness in the Vicinity of a Heliport in an Urban Park of Quito ( Ecuador) Using Immersive Audio-Visual Scenarios. Int J Environ Res Public Health 2022; 19:ijerph19106116. [PMID: 35627653 PMCID: PMC9140861 DOI: 10.3390/ijerph19106116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 02/04/2023]
Abstract
Heliports are facilities that play a fundamental role in security and emergency operations. Since rotorcrafts do not need much space for take-off and landing, heliports are normally immersed in the urban fabric of our cities. However, they generate high noise levels, which can cause a nuisance, especially in outdoor areas intended for the recreation of citizens. This paper studies how helicopter noise affects the perception of the soundscape appropriateness and landscape quality in the vicinity of a heliport located in an urban park, using semantic differential scales and appraisals on the noise sources. The study area was the “Parque del Bicentenario” in Quito, Ecuador. Immersive Virtual Reality (IVR) laboratory tests using 360-degree videos and spatial audio were preferred to on-site questionnaires, given the difficulty of predicting when helicopter noise events would occur. For the statistical analysis, objective acoustic and psychoacoustic parameters have also been considered. Results show that the soundscape is perceived as more pleasant and less chaotic when there is no helicopter noise. Furthermore, with the same visual stimuli, the appraisals of the landscape are much better in the scenarios without the helicopter noise. Sharpness is the psychoacoustic parameter that best explains the variance of the subjective variables evaluated.
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Affiliation(s)
- Virginia Puyana-Romero
- Grupo de Investigación Entornos Acústicos, Departamento de Ingeniería en Sonido y Acústica, Universidad de Las Américas, Quito 170125, Ecuador; (I.S.C.-S.); (G.E.M.-C.)
- Laboratorio de Fonética e Ingeniería Acústica, Instituto de Lingüistica Aplicada, Universidad de Cádiz, 11002 Cádiz, Spain
- Correspondence:
| | - José Luis Cueto
- Laboratorio de Ingeniería Acústica, Universidad de Cádiz, 11510 Puerto Real, Spain;
| | - Ismael Sebastián Caizapasto-Sánchez
- Grupo de Investigación Entornos Acústicos, Departamento de Ingeniería en Sonido y Acústica, Universidad de Las Américas, Quito 170125, Ecuador; (I.S.C.-S.); (G.E.M.-C.)
| | - Gabriel Eduardo Marcillo-Calispa
- Grupo de Investigación Entornos Acústicos, Departamento de Ingeniería en Sonido y Acústica, Universidad de Las Américas, Quito 170125, Ecuador; (I.S.C.-S.); (G.E.M.-C.)
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156
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Andrade JM, Pachar P, Trujillo L, Cartuche L. Suillin: A mixed-type acetylcholinesterase inhibitor from Suillus luteus which is used by Saraguros indigenous, southern Ecuador. PLoS One 2022; 17:e0268292. [PMID: 35576219 PMCID: PMC9109927 DOI: 10.1371/journal.pone.0268292] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 04/27/2022] [Indexed: 11/19/2022] Open
Abstract
Suillus luteus (L.) Roussel is an edible mushroom commonly known as slippery jack or “Kallampa” by indigenous people from Loja province. It is used in traditional medicine to manage gastrointestinal disorders and headaches. In addition, edible mushrooms have been used for neurodegenerative diseases; however, there is no report about the anticholinesterase effect produced by this species. The aim of this work was to isolate the main secondary metabolite of Suillus luteus and characterize its inhibitory potential against acetylcholinesterase. Fruiting bodies were extracted with ethanol (EtOH) and ethyl acetate (EtOAc). From the EtOAc, suillin, is reported as the major compound. The cholinesterase inhibitory potential of extracts and the major isolated compound was assessed by Ellman´s method and progression curves were recorded at 405 nm for 60 min. Donepezil hydroclhoride was used as a positive control. The samples were dissolved in methanol at 10 mg/mL and two more 10× dilutions were included to obtain final concentrations of 1, 0.1 and 0.01 mg/mL at the mix of reaction. IC50, Km, Vmax, and Ki were calculated for suillin. Suillin (200 mg) along with linoleic acid, ergosterol peroxide and ergosterol were isolated. The EtOH and EtOAc extracts exerted a moderate inhibitory effect (IC50 > 200 μg/mL. In adittion, suillin exerted a non-competitive mixed mechanism. against AChE with an IC50 value of 31.50 μM and Ki of 17.25 μM. To the best of our knowledge, this is the first report of the anticholinesterase effect of Suillus luteus and suillin. The kinetic parameters and the moderate potency of the compound determined in this study, encourage us to propose suillin as a promising chemopreventing agent for the treatment of neurodegenerative diseases such as Alzheimer.
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Affiliation(s)
- José Miguel Andrade
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Loja, Ecuador
| | - Pamela Pachar
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Loja, Ecuador
| | - Luisa Trujillo
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Loja, Ecuador
| | - Luis Cartuche
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Loja, Ecuador
- * E-mail:
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157
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Pacha-Herrera D, Erazo-Garcia MP, Cueva DF, Orellana M, Borja-Serrano P, Arboleda C, Tejera E, Machado A. Clustering Analysis of the Multi-Microbial Consortium by Lactobacillus Species Against Vaginal Dysbiosis Among Ecuadorian Women. Front Cell Infect Microbiol 2022; 12:863208. [PMID: 35646732 PMCID: PMC9131875 DOI: 10.3389/fcimb.2022.863208] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/18/2022] [Indexed: 12/12/2022] Open
Abstract
The vaginal microbiota plays vital protection in women. This probiotic activity is caused not only by individual Lactobacillus species but also by its multi-microbial interaction. However, the probiotic activity promoted by multi-microbial consortia is still unknown. The aim of this study was the individual and collective analysis on the prevalence of five vaginal lactobacilli (Lactobacillus iners, Lactobacillus crispatus, Lactobacillus gasseri, Lactobacillus jensenii, and Lactobacillus acidophilus) among healthy women and women with bacterial vaginosis (BV) or aerobic vaginitis (AV). PCR assays were realized on 436 vaginal samples from a previous study. Chi-square, univariable, and multivariable logistic regression analyses with the Benjamini–Hochberg adjustment evaluated associations between these lactobacilli and vaginal microbiota. Multi-microbial clustering model was also realized through Ward’s Minimum Variance Clustering Method with Euclidean squared distance for hierarchical clustering to determine the probiotic relationship between lactobacilli and vaginal dysbiosis. Concerning the individual effect, L. acidophilus, L. jensenii, and L. crispatus showed the highest normalized importance values against vaginal dysbiosis (100%, 79.3%, and 74.8%, respectively). However, only L. acidophilus and L. jensenii exhibited statistical values (p = 0.035 and p = 0.050, respectively). L. acidophilus showed a significant prevalence on healthy microbiota against both dysbioses (BV, p = 0.041; and AV, p = 0.045). L. jensenii only demonstrated significant protection against AV (p = 0.012). Finally, our results evidenced a strong multi-microbial consortium by L. iners, L. jensenii, L. gasseri, and L. acidophilus against AV (p = 0.020) and BV (p = 0.009), lacking protection in the absence of L. gasseri and L. acidophilus.
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Affiliation(s)
- David Pacha-Herrera
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Maria P. Erazo-Garcia
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Darío F. Cueva
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Miguel Orellana
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Pamela Borja-Serrano
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Camila Arboleda
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
| | - Eduardo Tejera
- Facultad de Ingeniería y Ciencias Agropecuarias, Grupo de Bioquimioinformática, Universidad de Las Américas, Quito, Ecuador
| | - António Machado
- Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales COCIBA, Instituto de Microbiología, Laboratorio de Bacteriología, Quito, Ecuador
- *Correspondence: António Machado,
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158
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Skomal AE, Zhang J, Yang K, Yen J, Tu X, Suarez-Torres J, Lopez-Paredes D, Calafat AM, Ospina M, Martinez D, Suarez-Lopez JR. Concurrent urinary organophosphate metabolites and acetylcholinesterase activity in Ecuadorian adolescents. Environ Res 2022; 207:112163. [PMID: 34627797 PMCID: PMC9138777 DOI: 10.1016/j.envres.2021.112163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Organophosphates are insecticides that inhibit the enzymatic activity of acetylcholinesterase (AChE). Because of this, AChE is considered a physiological marker of organophosphate exposure in agricultural settings. However, limited research exists on the associations between urinary organophosphate metabolites and AChE activity in children. METHODS This study included 526 participants from 2 exams (April and July-October 2016) of ages 12-17 years living in agricultural communities in Ecuador. AChE activity was measured at both examinations, and organophosphate metabolites, including para-nitrophenol (PNP), 3,5,6-trichloro-2-pyridinol (TCPy), and malathion dicarboxylic acid (MDA) were measured in urine collected in July-October. We used generalized estimating equation generalized linear model (GEEGLM), adjusting for hemoglobin, creatinine, and other demographic and anthropometric covariates, to estimate associations of urinary metabolite concentrations with AChE activity (July-October) and AChE% change between April and July-October. RESULTS The mean (SD) of AChE and AChE% change (April vs July-October) were 3.67 U/mL (0.54) and -2.5% (15.4%), respectively. AChE activity was inversely associated with PNP concentration, whereas AChE% change was inversely associated with PNP and MDA. There was evidence of a threshold: difference was only significant above the 80th percentile of PNP concentration (AChE difference per SD increase of metabolite = -0.12 U/mL [95%CI: 0.20, -0.04]). Likewise, associations with AChE% change were significant only above the 80th percentile of TCPy (AChE % change per SD increase of metabolite = -1.38% [95%CI: 2.43%, -0.32%]) and PNP -2.47% [95%CI: 4.45%, -0.50%]). PNP concentration at ≥80th percentile was associated with elevated ORs for low AChE activity of 2.9 (95% CI: 1.5, 5.7) and for AChE inhibition of ≤ -10% of 3.7 (95% CI: 1.4, 9.8). CONCLUSIONS Urinary organophosphate metabolites, including PNP, TCPy and MDA, particularly at concentrations above the 80th percentile, were associated with lower AChE activity among adolescents. These findings bring attention to the value of using multiple constructs of pesticide exposure in epidemiologic studies.
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Affiliation(s)
- Ana E Skomal
- School of Medicine, University of California-San Diego, La Jolla, CA, USA
| | - Jasen Zhang
- Herbert Wertheim School of Public Health, University of California-San Diego, La Jolla, CA, USA
| | - Kun Yang
- School of Medicine, University of California-San Diego, La Jolla, CA, USA
| | - Jessica Yen
- School of Medicine, University of California-San Diego, La Jolla, CA, USA
| | - Xin Tu
- School of Medicine, University of California-San Diego, La Jolla, CA, USA
| | | | | | - Antonia M Calafat
- National Center for Environmental Health, Division of Laboratory Sciences of the Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Maria Ospina
- National Center for Environmental Health, Division of Laboratory Sciences of the Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Jose R Suarez-Lopez
- Herbert Wertheim School of Public Health, University of California-San Diego, La Jolla, CA, USA.
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159
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Bastidas-Caldes C, Ochoa J, Guerrero-Latorre L, Moyota-Tello C, Tapia W, Rey-Pérez JM, Baroja MI. Removal of Extended-Spectrum Beta-Lactamase-Producing Escherichia coli, ST98, in Water for Human Consumption by Black Ceramic Water Filters in Low-Income Ecuadorian Highlands. Int J Environ Res Public Health 2022; 19:ijerph19084736. [PMID: 35457602 PMCID: PMC9028703 DOI: 10.3390/ijerph19084736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/25/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023]
Abstract
Fecal contamination in natural water sources is a common problem in low-income countries. Several health risks are associated with unprotected water sources, such as gastrointestinal infections caused by parasites, viruses, and bacteria. Moreover, antibiotic-resistant bacteria in water sources have become an increasing problem worldwide. This study aimed to evaluate the bacterial pathogens present in water within a rural context in Ecuador, along with the efficiency of black ceramic water filters (BCWFs) as a sustainable household water treatment. We monitored five natural water sources that were used for human consumption in the highlands of Ecuador and analyzed the total coliforms and E. coli before and after BCWF installation. The results indicated a variable bacterial contamination (29–300 colony-forming units/100mL) in all unfiltered samples, and they were considered as high risk for human consumption, but after filtration, no bacteria were present. Moreover, extended-spectrum beta-lactamase-producing E. coli with blaTEM, blaCTX-M9, and blaCTX-M1 genes, and two E. coli classified in the clonal complex ST10 (ST98) were detected in two of the locations sampled; these strains can severely impact public health. The clonal complex ST10, found in the E. coli isolates, possesses the potential to spread bacteria-resistant genes to humans and animals. The results of the use of BCWFs, however, argue for the filters’ potential impact within those contexts, as the BCWFs completely removed even antibiotic-resistant contaminants from the water.
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Affiliation(s)
- Carlos Bastidas-Caldes
- One Health Research Group, Biotecnología, Facultad de Ingeniería y Ciencias Aplicadas (FICA), Universidad de las Américas (UDLA), Quito 170125, Ecuador
- Programa de Doctorado en Salud Pública y Animal, Universidad de Extremadura, 10003 Mérida, Spain
- Correspondence: (C.B.-C.); (M.I.B.); Tel.: +593-983174949 (C.B.-C.)
| | - Juan Ochoa
- Ingeniería en Biotecnología, Facultad de Ingeniería y Ciencias Aplicadas (FICA), Universidad de las Américas (UDLA), Quito 170125, Ecuador; (J.O.); (C.M.-T.); (W.T.)
| | - Laura Guerrero-Latorre
- Catalan Institute for Water Research (ICRA), Water Quality Area, Emili Grahit 101, 17003 Girona, Spain;
| | - Carlos Moyota-Tello
- Ingeniería en Biotecnología, Facultad de Ingeniería y Ciencias Aplicadas (FICA), Universidad de las Américas (UDLA), Quito 170125, Ecuador; (J.O.); (C.M.-T.); (W.T.)
| | - Wilson Tapia
- Ingeniería en Biotecnología, Facultad de Ingeniería y Ciencias Aplicadas (FICA), Universidad de las Américas (UDLA), Quito 170125, Ecuador; (J.O.); (C.M.-T.); (W.T.)
| | - Joaquín María Rey-Pérez
- Unidad de Patología Infecciosa, Facultad de Veterinaria, Universidad de Extremadura, 10003 Mérida, Spain;
| | - Maria Isabel Baroja
- Ingeniería en Biotecnología, Facultad de Ingeniería y Ciencias Aplicadas (FICA), Universidad de las Américas (UDLA), Quito 170125, Ecuador; (J.O.); (C.M.-T.); (W.T.)
- Programa de Doctorado en Biología Molecular y Celular, Biomedicina y Biotecnología, Universidad de Extremadura, 10003 Mérida, Spain
- Correspondence: (C.B.-C.); (M.I.B.); Tel.: +593-983174949 (C.B.-C.)
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160
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Gendron F. The M de Jussieu's 'mirror of the Incas': an ecuadorian archaeological artefact in the mineralogical collection of René-Just Haüy (1743-1822). Ann Sci 2022; 79:259-273. [PMID: 35061563 DOI: 10.1080/00033790.2022.2028900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
This article reports on a historical investigation carried out on the conical object MIN000-3519 preserved in the mineralogy collections of the Muséum National d'Histoire Naturelle at Paris (France). The mineralogist René-Just Haüy (1743-1822) included this object, cut in a single pyrite (FeS2) crystal, in his working collection with the references 'Sulphured iron, mirror of the Incas, of Peru, M. de Jussieu'. All of the research lines followed lead the author to Joseph de Jussieu (1704-1779) and his shipments of botanical specimens and various other samples from South America. As a member of the Godin-La Condamine-Bouguer geodesic expedition on the equator (1735-1743), he returned to France only after 36 years (1771), ill, exhausted and dispossessed of the scientific product of his Andean collections. This pyrite mirror is important because, in addition to appearing to be the only archaeological object that can be linked to Joseph's peregrinations in America, it resembles other specimens found at sites of the Cañaris culture (500-1500 AD) in Ecuador. Preserved within the de Jussieu family, this object would presumably have been given to Haüy by Joseph's heirs, his nephews Antoine-Laurent (1748-1836) or Laurent-Pierre (1792-1866), with whom he had close ties.
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Affiliation(s)
- François Gendron
- Alliance Sorbonne Université, Muséum National d'Histoire Naturelle, Histoire Naturelle de l'Homme Préhistorique (UMR-CNRS 7194)
- Sorbonne Université Lettres, Centre de Recherche sur l'Amérique Préhispanique (UR 3551), Paris, France
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161
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Abel Palacios H, Stefanello A, García Gavilánez MS, Castro Demera DA, Garcia MV, Vásquez Castillo WA, Almeida Marcano MA, Samaniego Maigua IR, Copetti MV. Relationship between the Fungal Incidence, Water Activity, Humidity, and Aflatoxin Content in Maize Samples from the Highlands and Coast of Ecuador. Toxins (Basel) 2022; 14:toxins14030196. [PMID: 35324693 PMCID: PMC8953395 DOI: 10.3390/toxins14030196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/19/2022] [Accepted: 03/01/2022] [Indexed: 11/16/2022] Open
Abstract
This study evaluated the fungal incidence through direct plating in Agar Dichloran Glycerol, and the presence of aflatoxins in maize samples from the Highlands and Coast of Ecuador by HPLC, investigating the influence of the temperature, altitude, water activity, and humidity of the collection regions on the maize samples’ contamination using Principal Components Analysis (PCA). The overall kernel infection by fungi was usually lower in samples from the Highlands, and no aflatoxins or Aspergillus series Flavi were detected in the samples from this region. In the coastal samples, Aspergillus sp. were isolated from all samples, while the potentially aflatoxigenic A. Flavi contaminated about 80% of them. Aflatoxins were present in 50% of these samples, in ranges from 0.42 to 107.69 µg/kg. PCA was able to segregate the samples according to their collection region, and showed that the maximum and minimum temperatures are closely and positively related to the presence of A. Flavi. A highly positive relationship was also observed between the water activity of the sample and aflatoxin contamination. On the other hand, the altitude had a very strong—but negative—relationship with the variables studied. This study is relevant because data regarding fungi and aflatoxin occurrence, as well the main factor influencing the contamination of Ecuadoran maize, are scarce; it clearly shows that aflatoxins are a hazard present in maize from the Ecuadorian Coast but not the Highlands.
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Affiliation(s)
- Héctor Abel Palacios
- Facultad de Ingeniería Mecánica y Ciencias de la Producción, Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil 09-01.5863, Ecuador
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, UDLA, Quito 170513, Ecuador; (M.S.G.G.); (D.A.C.D.); (W.A.V.C.); (M.A.A.M.)
- Correspondence: or (H.A.P.); (M.V.C.); Tel.: +593-042-269-351 or +593-23981000 (ext. 2605) (H.A.P.); +55-(55)-3220-8254 (M.V.C.)
| | - Andrieli Stefanello
- Graduate Program of Food Science and Technology (PPGCTA), Universidade Federal de Santa Maria, UFSM, Santa Maria 97105-900, RS, Brazil;
| | - Margarita Susana García Gavilánez
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, UDLA, Quito 170513, Ecuador; (M.S.G.G.); (D.A.C.D.); (W.A.V.C.); (M.A.A.M.)
| | - Dicke Alejandro Castro Demera
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, UDLA, Quito 170513, Ecuador; (M.S.G.G.); (D.A.C.D.); (W.A.V.C.); (M.A.A.M.)
| | | | - Wilson Arturo Vásquez Castillo
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, UDLA, Quito 170513, Ecuador; (M.S.G.G.); (D.A.C.D.); (W.A.V.C.); (M.A.A.M.)
| | - Marcelo Alejandro Almeida Marcano
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, UDLA, Quito 170513, Ecuador; (M.S.G.G.); (D.A.C.D.); (W.A.V.C.); (M.A.A.M.)
| | | | - Marina Venturini Copetti
- Graduate Program of Food Science and Technology (PPGCTA), Universidade Federal de Santa Maria, UFSM, Santa Maria 97105-900, RS, Brazil;
- Correspondence: or (H.A.P.); (M.V.C.); Tel.: +593-042-269-351 or +593-23981000 (ext. 2605) (H.A.P.); +55-(55)-3220-8254 (M.V.C.)
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Hidrobo-Chavez J, Ramírez-Villacís DX, Barriga-Medina N, Herrera K, León-Reyes A. First Report of Neopestalotiopsis mesopotamica Causing Root and Crown Rot on Strawberry in Ecuador. Plant Dis 2022; 106:1066. [PMID: 34546776 DOI: 10.1094/pdis-06-21-1278-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- J Hidrobo-Chavez
- Laboratorio de Biotecnología Agrícola y de Alimentos, Colegio de Ciencias e Ingenierías-Agronomía, Universidad San Francisco de Quito USFQ, Campus Cumbayá, Quito 170901, Ecuador
| | - D X Ramírez-Villacís
- Laboratorio de Biotecnología Agrícola y de Alimentos, Colegio de Ciencias e Ingenierías-Agronomía, Universidad San Francisco de Quito USFQ, Campus Cumbayá, Quito 170901, Ecuador
| | - N Barriga-Medina
- Laboratorio de Biotecnología Agrícola y de Alimentos, Colegio de Ciencias e Ingenierías-Agronomía, Universidad San Francisco de Quito USFQ, Campus Cumbayá, Quito 170901, Ecuador
| | - K Herrera
- Laboratorio de Biotecnología Agrícola y de Alimentos, Colegio de Ciencias e Ingenierías-Agronomía, Universidad San Francisco de Quito USFQ, Campus Cumbayá, Quito 170901, Ecuador
| | - A León-Reyes
- Laboratorio de Biotecnología Agrícola y de Alimentos, Colegio de Ciencias e Ingenierías-Agronomía, Universidad San Francisco de Quito USFQ, Campus Cumbayá, Quito 170901, Ecuador
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163
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Vélez-Páez JL, Legua P, Vélez-Páez P, Irigoyen E, Andrade H, Jara A, López F, Pérez-Galarza J, Baldeón L. Mean platelet volume and mean platelet volume to platelet count ratio as predictors of severity and mortality in sepsis. PLoS One 2022; 17:e0262356. [PMID: 34990467 PMCID: PMC8735631 DOI: 10.1371/journal.pone.0262356] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 12/21/2021] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Sepsis is a public health problem due to its high prevalence and mortality. Mean platelet volume (MPV), a biomarker reported in routine blood counts, has been investigated and shows promise for determining fatal outcomes in septic patients. OBJECTIVE Evaluate whether the mean platelet volume (MPV) and mean platelet volume-to-platelet count (MPV/P) ratio are predictors of clinical severity and mortality in patients with sepsis. METHODS A prospective population cohort of 163 patients aged 18-97 years was recruited at the Intensive Care Unit of Pablo Arturo Hospital, Quito, Ecuador from 2017-2019 and followed up for 28 days. Patients were diagnosed with sepsis based on SEPSIS-3 septic shock criteria; in which the MPV and the MPV/P ratio were measured on days 1, 2, and 3. Sequential organ failure assessment (SOFA) score and presence of septic shock assessed clinical severity. Mortality on day 28 was considered the fatal outcome. RESULTS The average age of the patients was 61,15 years (SD 20,94) and female sex was predominant. MPV cutoff points at days 1, 2 and 3 were >9,45fL, >8,95fL and >8, 85fL; and (MPV/P) ratio >8, 18, >4, 12 y >3, 95, respectively. MPV at days 2 (9,85fL) and 3 (8,55fL) and (MPV/P) ratio at days 1 (4,42), 2 (4,21), and 3 (8,55), were predictors of clinical severity assessed by septic shock, which reached significance in the ROC curves. MPV and (MPV/P) ratio were also predictors of clinical severity determined by SOFA at days 1, 2, and 3, where higher values were observed in non-survivors reaching significance in all categories. MPV and MPV/P ratio at days 1, 2 and 3 were independent predictor factors of mortality using Cox proportional hazards model (HR 2,31; 95% CI 1,36-3,94), (HR 2,11; 95% CI 1,17-3,82), (HR 2,13; 95% CI 1,07-4,21) and (HR 2,38; 95% CI 1,38-4,12), (HR 2,15; 95% CI 1,14-4,06), (HR 4,43; 95% CI, 1,72-11,37) respectively. CONCLUSIONS MPV and the MPV/P ratio are predictors of clinical severity and mortality in sepsis. The MPV and its coefficient are indicators of the biological behavior of platelets in sepsis. They should be considered as a cost-effective and rapidly available tool that guides the treatment.
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Affiliation(s)
- Jorge Luis Vélez-Páez
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Centro de Investigación Clínica en Medicina Crítica, Hospital Pablo Arturo Suárez, Quito, Ecuador
| | - Pedro Legua
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Pablo Vélez-Páez
- Centro de Investigación Clínica en Medicina Crítica, Quito, Ecuador
- Unidad de Terapia Intensiva, Hospital General IESS de Ibarra, Imbabura, Ecuador
| | - Estefanía Irigoyen
- Centro de Investigación Clínica en Medicina Crítica, Hospital Pablo Arturo Suárez, Quito, Ecuador
| | - Henry Andrade
- Unidad de Terapia Intensiva, Hospital General IESS de Ibarra, Imbabura, Ecuador
| | - Andrea Jara
- Unidad de Emergencia, Hospital Básico de Machachi, Pichincha, Ecuador
| | - Fernanda López
- Instituto de Posgrado Medicina Crítica y Terapia Intensiva, Universidad Central del Ecuador, Quito, Ecuador
| | - Jorge Pérez-Galarza
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Instituto de Investigación en Biomedicina, Universidad Central del Ecuador, Quito, Ecuador
| | - Lucy Baldeón
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Instituto de Investigación en Biomedicina, Universidad Central del Ecuador, Quito, Ecuador
- * E-mail:
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164
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Ochoa Rico MS, Vergara-Romero A, Subia JFR, del Río JAJ. Study of citizen satisfaction and loyalty in the urban area of Guayaquil: Perspective of the quality of public services applying structural equations. PLoS One 2022; 17:e0263331. [PMID: 35176053 PMCID: PMC8853569 DOI: 10.1371/journal.pone.0263331] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/16/2022] [Indexed: 11/22/2022] Open
Abstract
This study investigates the satisfaction and adequacy of citizens through the expected quality and perceived quality in the areas of planning and territorial viability, experience in the provision of municipal services and citizen experience in environmental issues, in order to provide tools for territorial decision making for the citizens' well-being. In our research PLS software is used for the analysis of hypotheses. A questionnaire was delivered to a sample of 521 citizens, representing the spectrum of the population, and the statistical study of the responses yielded results on citizen satisfaction and loyalty. Our research includes the study of moderating effects on the causal ratio of perceived value and satisfaction in territorial planning and viability, the perceived quality in the provision of municipal services and the perceived quality in the citizen experience in the environmental management of the territory on the value relationship perceived by the citizen and general satisfaction. A second objective of the study is to see if there are significant differences in the hypotheses raised by gender by performing a multigroup analysis. This difference has been appreciated in two of the hypotheses. The study shows that the policies exercised by the territorial managers of the different areas have a significant influence on the value perceived by citizens, satisfaction and loyalty, which shape their general well-being. Areas for improvement in territorial policies and municipal services such as citizen security, air quality, public lighting and sports services have been identified. Knowing these shortcomings allows politicians to focus their efforts on improving the quality of life in cities.
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Affiliation(s)
- María Salomé Ochoa Rico
- Department Agricultural Economics, Finance, and Accounting, University of Cordoba, Córdoba, Spain
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165
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Vásquez WF, Raheem N, Quiroga D, Ochoa-Herrera V. Valuing improved water services and negative environmental externalities from seawater desalination technology: A choice experiment from the Galápagos. J Environ Manage 2022; 304:114204. [PMID: 34871871 DOI: 10.1016/j.jenvman.2021.114204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/12/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
While seawater desalination technologies can improve drinking water supply, they can also generate significant environmental externalities. A choice experiment was implemented to investigate household preferences for potential trade-offs between improved water services and environmental impacts from seawater desalination in the Galápagos Islands. Our results indicate that households are willing to pay for water quality improvements, and for protection of coastal ecosystems and marine organisms. In contrast, households seem indifferent regarding water availability and potential impacts on air quality. Our findings also suggest that respondents who consistently reject the proposed desalination project tend to be less affluent and have stronger environmental preferences than those who support it. It is concluded that stated-preference studies on improved water services should also elicit preferences for potential environmental effects of the proposed water technology.
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Affiliation(s)
- William F Vásquez
- Department of Economics, Fairfield University, 1073 North Benson Rd Fairfield, CT, 06824, United States.
| | - Nejem Raheem
- Department of Marketing Communication, Emerson College, Boston, MA, United States.
| | - Diego Quiroga
- Galápagos Science Center, Universidad San Francisco de Quito and University of North Carolina at Chapel Hill, San Cristóbal, Galápagos, Ecuador.
| | - Valeria Ochoa-Herrera
- Galápagos Science Center, Universidad San Francisco de Quito and University of North Carolina at Chapel Hill, San Cristóbal, Galápagos, Ecuador; Escuela de Ingeniería, Ciencia y Tecnología, Universidad Del Rosario, Bogotá 111221, Colombia.
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166
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Bulgarella M, Lincango MP, Lahuatte PF, Oliver JD, Cahuana A, Ramírez IE, Sage R, Colwitz AJ, Freund DA, Miksanek JR, Moon RD, Causton CE, Heimpel GE. Persistence of the invasive bird-parasitic fly Philornis downsi over the host interbreeding period in the Galapagos Islands. Sci Rep 2022; 12:2325. [PMID: 35149738 PMCID: PMC8837626 DOI: 10.1038/s41598-022-06208-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/11/2022] [Indexed: 11/24/2022] Open
Abstract
Many parasites of seasonally available hosts must persist through times of the year when hosts are unavailable. In tropical environments, host availability is often linked to rainfall, and adaptations of parasites to dry periods remain understudied. The bird-parasitic fly Philornis downsi has invaded the Galapagos Islands and is causing high mortality of Darwin's finches and other bird species, and the mechanisms by which it was able to invade the islands are of great interest to conservationists. In the dry lowlands, this fly persists over a seven-month cool season when availability of hosts is very limited. We tested the hypothesis that adult flies could survive from one bird-breeding season until the next by using a pterin-based age-grading method to estimate the age of P. downsi captured during and between bird-breeding seasons. This study showed that significantly older flies were present towards the end of the cool season, with ~ 5% of captured females exhibiting estimated ages greater than seven months. However, younger flies also occurred during the cool season suggesting that some fly reproduction occurs when host availability is low. We discuss the possible ecological mechanisms that could allow for such a mixed strategy.
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Affiliation(s)
- Mariana Bulgarella
- Department of Entomology, University of Minnesota, St. Paul, MN, USA.
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand.
| | - M Piedad Lincango
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador
- Facultad de Ciencias Agrícolas, Universidad Central del Ecuador, Quito, Ecuador
| | - Paola F Lahuatte
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador
| | - Jonathan D Oliver
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
| | - Andrea Cahuana
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador
| | - Ismael E Ramírez
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
| | - Roxanne Sage
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
| | - Alyssa J Colwitz
- Biology Department, University of Wisconsin Eau Claire, Eau Claire, WI, USA
| | - Deborah A Freund
- Biology Department, University of Wisconsin Eau Claire, Eau Claire, WI, USA
| | - James R Miksanek
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
| | - Roger D Moon
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
| | - Charlotte E Causton
- Charles Darwin Research Station, Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador
| | - George E Heimpel
- Department of Entomology, University of Minnesota, St. Paul, MN, USA
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167
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Calero-Cáceres W, Tadesse D, Jaramillo K, Villavicencio X, Mero E, Lalaleo L, Welsh C, Villacís JE, Quentin E, Parra H, Ramirez MS, Harries AD, Balcázar JL. Characterization of the genetic structure of mcr-1 gene among Escherichia coli isolates recovered from surface waters and sediments from Ecuador. Sci Total Environ 2022; 806:150566. [PMID: 34582864 DOI: 10.1016/j.scitotenv.2021.150566] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/02/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Although anthropogenic activities contribute to the selection and spread of antibiotic resistance in aquatic environments, limited information is available from countries with absent or incomplete sewage treatment systems and the impact of their discharges onto water bodies. This study therefore aimed to characterize the genetic structure of colistin resistance (mcr) genes among Escherichia coli isolates recovered from surface waters and sediments in Ecuador. Out of 459 isolates, four Escherichia coli showed multidrug-resistant phenotypes, which harbored the mcr-1 gene and β-lactamases, such as blaTEM, blaCTX-M-15, blaCTX-M-55, or blaCTX-M-65 genes. Three E. coli isolates (U20, U30 and U144) shared a similar genetic environment surrounding the mcr-1 gene, which was located on plasmids. Only one E. coli isolate (U175) showed that the mcr-1 gene was chromosomally located. Moreover, the core genome multilocus sequence typing (cgMLST) analysis revealed that these isolates belong to different lineages. This study represents the first detection of the mcr-1 gene in multidrug-resistant E. coli isolates from environmental samples in Ecuador.
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Affiliation(s)
- William Calero-Cáceres
- UTA-RAM-One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, Ecuador; Centro de Investigaciones Agropecuarias, Facultad de Ciencias Agropecuarias, Universidad Técnica de Ambato, Cevallos, Ecuador.
| | - Daniel Tadesse
- U.S. Food & Drug Administration, Center for Veterinary Medicine, Office of Research Laurel, MD 20708, USA
| | - Katherine Jaramillo
- Centro de Referencia Nacional de Resistencia a los Antimicrobianos RAM, Instituto Nacional de Investigación en Salud Pública "Dr. Leopoldo Izquieta Pérez" INSPI, Quito, Ecuador
| | - Xavier Villavicencio
- Centro de Referencia Nacional de Resistencia a los Antimicrobianos RAM, Instituto Nacional de Investigación en Salud Pública "Dr. Leopoldo Izquieta Pérez" INSPI, Quito, Ecuador
| | - Efraín Mero
- Centro de Investigaciones Agropecuarias, Facultad de Ciencias Agropecuarias, Universidad Técnica de Ambato, Cevallos, Ecuador
| | - Liliana Lalaleo
- UTA-RAM-One Health, Department of Food and Biotechnology Science and Engineering, Universidad Técnica de Ambato, Ambato, Ecuador
| | - Caitlin Welsh
- U.S. Food & Drug Administration, Center for Veterinary Medicine, Office of Research Laurel, MD 20708, USA
| | - José E Villacís
- Centro de Referencia Nacional de Resistencia a los Antimicrobianos RAM, Instituto Nacional de Investigación en Salud Pública "Dr. Leopoldo Izquieta Pérez" INSPI, Quito, Ecuador
| | - Emmanuelle Quentin
- Centro de Referencia Nacional de Resistencia a los Antimicrobianos RAM, Instituto Nacional de Investigación en Salud Pública "Dr. Leopoldo Izquieta Pérez" INSPI, Quito, Ecuador
| | - Henry Parra
- Centro de Investigación Microbiológica Dr. Henry Parra, Guayaquil, Ecuador
| | - Maria Soledad Ramirez
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, CA, USA
| | - Anthony D Harries
- International Union Against Tuberculosis and Lung Disease, Paris, France; London School of Hygiene and Tropical Medicine, London, UK
| | - José L Balcázar
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain; University of Girona, 17004 Girona, Spain
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Mestanza-Ramón C, Ordoñez-Alcivar R, Arguello-Guadalupe C, Carrera-Silva K, D’Orio G, Straface S. History, Socioeconomic Problems and Environmental Impacts of Gold Mining in the Andean Region of Ecuador. Int J Environ Res Public Health 2022; 19:ijerph19031190. [PMID: 35162216 PMCID: PMC8835288 DOI: 10.3390/ijerph19031190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/18/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023]
Abstract
Mining in Ecuadorian territory comprises three stages of Ecuadorian history: pre-Columbian, colonial, and republican times. In its beginnings, this activity did not have regulations or a legal foundation. The first Mining Law dates back to 1830, and it has been modified until the most recent update in 2009. The Andean region consists of 10 provinces, 9 of which have registered gold concessions, the most important of which are Loja, Azuay, and in recent years, Imbabura and Pichincha, which are the provinces with the highest number of reported concessions. The objective of this study focused on analyzing the historical and current situation of Artisanal and Small-scale Mining (ASGM) and the emergence of large-scale (industrial) mining. For the elaboration of this study, different methodological techniques were used, such as literature review, field interviews, and expert judgment validation. The main findings show that the provinces of Loja, Azuay, Imbabura, and Pichincha are the most conflictive areas in the region due to the impacts caused by mining activities. In socio-economic terms, there are conflicts between inhabitants in favor and against these activities and problems associated with human health. In environmental terms, the findings suggest historical contamination of water sources by heavy metals, which has altered the surrounding aquatic and terrestrial systems. Finally, the study concludes that implementing public policies should be promoted to balance socio-economic and environmental aspects in gold mining activities in the Andean region of Ecuador, strengthening the use of new technologies and education to raise awareness of the serious effects of mining activities.
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Affiliation(s)
- Carlos Mestanza-Ramón
- Department of Environmental Engineering, University of Calabria, 87036 Rende, Italy;
- Research Group YASUNI-SDC, Escuela Superior Politécnica de Chimborazo, Sede Orellana, El Coca 220001, Ecuador
- Correspondence:
| | | | | | - Katherin Carrera-Silva
- Escuela Superior Politécnica de Chimborazo, Riobamba 060104, Ecuador; (C.A.-G.); (K.C.-S.)
| | - Giovanni D’Orio
- Department of Economics, Statistics, and Finance, University of Calabria, 87036 Rende, Italy;
| | - Salvatore Straface
- Department of Environmental Engineering, University of Calabria, 87036 Rende, Italy;
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169
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Zhou L, Lopez Rodas A, Llangarí LM, Romero Sandoval N, Cooper P, Sadiq ST. Single gene targeted nanopore sequencing enables simultaneous identification and antimicrobial resistance detection of sexually transmitted infections. PLoS One 2022; 17:e0262242. [PMID: 35061780 PMCID: PMC8782522 DOI: 10.1371/journal.pone.0262242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES To develop a simple DNA sequencing test for simultaneous identification and antimicrobial resistance (AMR) detection of multiple sexually transmitted infections (STIs). METHODS Real-time PCR (qPCR) was initially performed to identify Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), Mycoplasma genitalium (MG) and Trichomonas vaginalis (TV) infections among a total of 200 vulvo-vaginal swab samples from female sex workers in Ecuador. qPCR positive samples plus qPCR negative controls for these STIs were subjected to single gene targeted PCR MinION-nanopore sequencing using the smartphone operated MinIT. RESULTS Among 200 vulvo-vaginal swab samples 43 were qPCR positive for at least one of the STIs. Single gene targeted nanopore sequencing generally yielded higher pathogen specific read counts in qPCR positive samples than qPCR negative controls. Of the 26 CT, NG or MG infections identified by qPCR, 25 were clearly distinguishable from qPCR negative controls by read count. Discrimination of TV qPCR positives from qPCR negative controls was poorer as many had low pathogen loads (qPCR cycle threshold >35) which produced few specific reads. Real-time AMR profiling revealed that 3/3 NG samples identified had gyrA mutations associated with fluoroquinolone resistance, 2/10 of TV had mutations related to metronidazole resistance, while none of the MG samples possessed 23S rRNA gene mutations contributing to macrolide resistance. CONCLUSIONS Single gene targeted nanopore sequencing for diagnosing and simultaneously identifying key antimicrobial resistance markers for four common genital STIs shows promise. Further work to optimise accuracy, reduce costs and improve speed may allow sustainable approaches for managing STIs and emerging AMR in resource poor and laboratory limited settings.
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Affiliation(s)
- Liqing Zhou
- Applied Diagnostic Research and Evaluation Unit, Institute for Infection and Immunity, St George’s, University of London, London, United Kingdom
| | - Andrea Lopez Rodas
- School of Medicine, Faculty of Health and Life Sciences, Universidad Internacional del Ecuador, Quito, Ecuador
| | - Luz Marina Llangarí
- School of Medicine, Faculty of Health and Life Sciences, Universidad Internacional del Ecuador, Quito, Ecuador
| | - Natalia Romero Sandoval
- School of Medicine, Faculty of Health and Life Sciences, Universidad Internacional del Ecuador, Quito, Ecuador
- Grups de Recerca d’Amèrica i Àfrica Llatines, GRAAL, Barcelona, Spain
| | - Philip Cooper
- Applied Diagnostic Research and Evaluation Unit, Institute for Infection and Immunity, St George’s, University of London, London, United Kingdom
- School of Medicine, Faculty of Health and Life Sciences, Universidad Internacional del Ecuador, Quito, Ecuador
| | - Syed Tariq Sadiq
- Applied Diagnostic Research and Evaluation Unit, Institute for Infection and Immunity, St George’s, University of London, London, United Kingdom
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170
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Ortiz C, Sarrias M. Estimating the non-pecuniary benefit of engaging in pro-environmental behaviors: Incorporating both heterogeneous preferences and income endogeneity. J Environ Manage 2022; 302:114040. [PMID: 34872179 DOI: 10.1016/j.jenvman.2021.114040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 10/24/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
This article estimates the individuals' non-pecuniary benefit of engaging in pro- environmental behaviors (PEB) using a large sample from Ecuador. As a novelty, we estimate a model that allows incorporating both unobserved heterogeneity in preferences and controlling for the potential endogeneity of income through instrumental variables. Although both problems have been addressed separately in the literature, we show that considering both sources of bias allows finding more accurate and credible monetary values. Our results show that subjective monetary evaluations regarding PEBs are generally overestimated (the income coefficient is underestimated), but not including unobserved heterogeneity hides important patterns for an important group of the sample with completely different preferences.
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Affiliation(s)
- Cristian Ortiz
- ESAI Business School, Universidad Espíritu Santo, 091650 Samborondon, Ecuador.
| | - Mauricio Sarrias
- Facultad de Economía y Negocios, Universidad de Talca, Talca, Chile.
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171
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Martina C, Krenn L, Krupicka L, Yamada H, Hood-Nowotny R, Lahuatte PF, Yar J, Schwemhofer T, Fischer B, Causton CE, Tebbich S. Evaluating Volatile Plant Compounds of Psidium galapageium (Myrtales: Myrtaceae) as Repellents Against Invasive Parasitic Diptera in the Galapagos Islands. J Med Entomol 2022; 59:89-98. [PMID: 34761264 DOI: 10.1093/jme/tjab183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Plant-based repellents represent a safe, economic, and viable alternative to managing invasive insects that threaten native fauna. Observations of self-medication in animals can provide important cues to the medicinal properties of plants. A recent study in the Galapagos Islands found that Darwin's finches apply the leaves of Psidium galapageium (Hooker 1847) to their feathers, extracts of which were repellent to mosquitoes and the parasitic fly Philornis downsi (Dodge & Aitkens 1968; Diptera: Muscidae). Introduced mosquitoes are suspected vectors of avian pathogens in the Galapagos Islands, whereas the larvae of P. downsi are blood-feeders, causing significant declines of the endemic avifauna. In this study, we investigated the volatile compounds found in P. galapageium, testing each against a model organism, the mosquito Anopheles arabiensis (Patton 1905; Diptera: Culicidae), with the aim of singling out the most effective compound for repelling dipterans. Examinations of an ethanolic extract of P. galapageium, its essential oil and each of their respective fractions, revealed a mixture of monoterpenes and sesquiterpenes, the latter consisting mainly of guaiol, trans-nerolidol, and β-eudesmol. Of these, trans-nerolidol was identified as the most effective repellent to mosquitoes. This was subsequently tested at four different concentrations against P. downsi, but we did not find a repellence response. A tendency to avoid the compound was observed, albeit significance was not achieved in any case. The lack of repellence suggests that flies may respond to a combination of the volatile compounds found in P. galapageium, rather than to a single compound.
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Affiliation(s)
- C Martina
- Department of Behavioral and Cognitive Biology, University of Vienna, 1090 Vienna, Austria
- Insect Pest Control Section, International Atomic Energy Agency, 1400, Vienna, Austria
| | - L Krenn
- Department of Pharmacognosy, University of Vienna, A-1090, Vienna, Austria
| | - L Krupicka
- Department of Pharmacognosy, University of Vienna, A-1090, Vienna, Austria
| | - H Yamada
- Insect Pest Control Section, International Atomic Energy Agency, 1400, Vienna, Austria
| | - R Hood-Nowotny
- Institute of Soil Research, University of Natural Resources and Life Sciences (BOKU), 1180 Vienna, Austria
| | - P F Lahuatte
- Charles Darwin Foundation, Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, Ecuador
| | - J Yar
- Charles Darwin Foundation, Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, Ecuador
| | - T Schwemhofer
- Department of Behavioral and Cognitive Biology, University of Vienna, 1090 Vienna, Austria
| | - B Fischer
- Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, A-1090, Vienna, Austria
| | - C E Causton
- Charles Darwin Foundation, Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, Ecuador
| | - S Tebbich
- Department of Behavioral and Cognitive Biology, University of Vienna, 1090 Vienna, Austria
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172
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Jaimez RE, Barragan L, Fernández-Niño M, Wessjohann LA, Cedeño-Garcia G, Sotomayor Cantos I, Arteaga F. Theobroma cacao L. cultivar CCN 51: a comprehensive review on origin, genetics, sensory properties, production dynamics, and physiological aspects. PeerJ 2022; 10:e12676. [PMID: 35036091 PMCID: PMC8742540 DOI: 10.7717/peerj.12676] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/02/2021] [Indexed: 01/07/2023] Open
Abstract
Many decades of improvement in cacao have aided to obtain cultivars with characteristics of tolerance to diseases, adaptability to different edaphoclimatic conditions, and higher yields. In Ecuador, as a result of several breeding programs, the clone CCN 51 was obtained, which gradually expanded through the cacao-production regions of Ecuador, Colombia, Brazil and Peru. Recognized for its high yield and adaptability to different regions and environments, it has become one of the most popular clones for breeding programs and cultivation around the world. This review aims to summarize the current evidence on the origin, genetics, morphological, volatile compounds, and organoleptic characteristics of this clone. Physiological evidence, production dynamics, and floral biology are also included to explain the high yield of CCN 51. Thus, characteristics such as osmotic adjustment, long pollen longevity, and fruit formation are further discussed and associated with high production at the end of the dry period. Finally, the impact of this popular clone on the current and future cacao industry will be discussed highlighting the major challenges for flavor enhancement and its relevance as a platform for the identification of novel genetic markers for cultivar improvement in breeding programs.
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Affiliation(s)
- Ramon E. Jaimez
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Manabí, Ecuador
| | | | - Miguel Fernández-Niño
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Ludger A. Wessjohann
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Halle (Saale), Germany
| | - George Cedeño-Garcia
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Manabí, Ecuador
| | - Ignacio Sotomayor Cantos
- Estación Experimental Tropical Pichilingue, Instituto Nacional de Investigaciones Agropecuarias (INIAP), Los Ríos, Ecuador
| | - Francisco Arteaga
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Manabí, Ecuador
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173
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Guadalupe JJ, Rojas MI, Pozo G, Erazo-Garcia MP, Vega-Polo P, Terán-Velástegui M, Rohwer F, Torres MDL. Presence of SARS-CoV-2 RNA on Surfaces of Public Places and a Transportation System Located in a Densely Populated Urban Area in South America. Viruses 2021; 14:v14010019. [PMID: 35062223 PMCID: PMC8780916 DOI: 10.3390/v14010019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/12/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly transmissible RNA virus that causes COVID-19. Being aware of the presence of the virus on different types of surfaces and in different environments, and having a protocol for its detection, is important to understand the dynamics of the virus and its shedding patterns. In Ecuador, the detection of viral RNA in urban environmental samples has not been a priority. The present study analyzed samples from two densely populated neighborhoods and one public transportation system in Quito, Ecuador. Viral RNA presence was assessed using RT-LAMP. Twenty-eight out of 300 surfaces tested positive for SARS-CoV-2 RNA (9.33%). Frequently touched surfaces, especially in indoor spaces and on public transportation, were most likely to be positive for viral RNA. Positivity rate association for the two neighborhoods and for the surface type was not found. This study found viral RNA presence on urban surfaces; this information provides an insight into viral dissemination dynamics. Monitoring environmental SARS-CoV-2 could support the public health prevention strategies in Quito, Ecuador.
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Affiliation(s)
- Juan José Guadalupe
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - María I. Rojas
- Biology Department, San Diego State University, San Diego, CA 92182, USA; (M.I.R.); (F.R.)
- Viral Information Institute, San Diego State University, San Diego, CA 92182, USA
| | - Gabriela Pozo
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Maria P. Erazo-Garcia
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Pamela Vega-Polo
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Martín Terán-Velástegui
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Forest Rohwer
- Biology Department, San Diego State University, San Diego, CA 92182, USA; (M.I.R.); (F.R.)
- Viral Information Institute, San Diego State University, San Diego, CA 92182, USA
| | - María de Lourdes Torres
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
- Correspondence:
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174
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Kleindorfer S, Common LK, O'Connor JA, Garcia-Loor J, Katsis AC, Dudaniec RY, Colombelli-Négrel D, Adreani NM. Female in-nest attendance predicts the number of ectoparasites in Darwin's finch species. Proc Biol Sci 2021; 288:20211668. [PMID: 34905711 PMCID: PMC8670954 DOI: 10.1098/rspb.2021.1668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/19/2021] [Indexed: 11/12/2022] Open
Abstract
Selection should act on parental care and favour parental investment decisions that optimize the number of offspring produced. Such predictions have been robustly tested in predation risk contexts, but less is known about alternative functions of parental care under conditions of parasitism. The avian vampire fly (Philornis downsi) is a myasis-causing ectoparasite accidentally introduced to the Galápagos Islands, and one of the major mortality causes in Darwin's finch nests. With an 11-year dataset spanning 21 years, we examine the relationship between parental care behaviours and number of fly larvae and pupae in Darwin's finch nests. We do so across three host species (Camarhynchus parvulus, C. pauper, Geospiza fuliginosa) and one hybrid Camarhynchus group. Nests with longer female brooding duration (minutes per hour spent sitting on hatchlings to provide warmth) had fewer parasites, and this effect depended on male food delivery to chicks. Neither male age nor number of nest provisioning visits were directly associated with number of parasites. While the causal mechanisms remain unknown, we provide the first empirical study showing that female brooding duration is negatively related to the number of ectoparasites in nests. We predict selection for coordinated host male and female behaviour to reduce gaps in nest attendance, especially under conditions of novel and introduced ectoparasites.
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Affiliation(s)
- Sonia Kleindorfer
- College of Science and Engineering, Flinders University, Adelaide 5001, Australia
- Konrad Lorenz Research Center for Behavior and Cognition and Department of Behavioral and Cognitive Biology, University of Vienna, Vienna 1090, Austria
| | - Lauren K. Common
- College of Science and Engineering, Flinders University, Adelaide 5001, Australia
| | | | - Jefferson Garcia-Loor
- Konrad Lorenz Research Center for Behavior and Cognition and Department of Behavioral and Cognitive Biology, University of Vienna, Vienna 1090, Austria
- Charles Darwin Research Station, Galápagos, Ecuador
| | - Andrew C. Katsis
- College of Science and Engineering, Flinders University, Adelaide 5001, Australia
| | - Rachael Y. Dudaniec
- Department of Biological Sciences, Macquarie University, Sydney 2109, Australia
| | | | - Nico M. Adreani
- Konrad Lorenz Research Center for Behavior and Cognition and Department of Behavioral and Cognitive Biology, University of Vienna, Vienna 1090, Austria
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175
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Pinna CS, Vilbert M, Borensztajn S, Daney de Marcillac W, Piron-Prunier F, Pomerantz A, Patel NH, Berthier S, Andraud C, Gomez D, Elias M. Mimicry can drive convergence in structural and light transmission features of transparent wings in Lepidoptera. eLife 2021; 10:e69080. [PMID: 34930525 PMCID: PMC8691843 DOI: 10.7554/elife.69080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 11/19/2021] [Indexed: 01/30/2023] Open
Abstract
Müllerian mimicry is a positive interspecific interaction, whereby co-occurring defended prey species share a common aposematic signal. In Lepidoptera, aposematic species typically harbour conspicuous opaque wing colour patterns with convergent optical properties among co-mimetic species. Surprisingly, some aposematic mimetic species have partially transparent wings, raising the questions of whether optical properties of transparent patches are also convergent, and of how transparency is achieved. Here, we conducted a comparative study of wing optics, micro and nanostructures in neotropical mimetic clearwing Lepidoptera, using spectrophotometry and microscopy imaging. We show that transparency, as perceived by predators, is convergent among co-mimics in some mimicry rings. Underlying micro- and nanostructures are also sometimes convergent despite a large structural diversity. We reveal that while transparency is primarily produced by microstructure modifications, nanostructures largely influence light transmission, potentially enabling additional fine-tuning in transmission properties. This study shows that transparency might not only enable camouflage but can also be part of aposematic signals.
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Affiliation(s)
- Charline Sophie Pinna
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, Muséum national d'Histoire naturelle, Sorbonne Université, EPHE, Université des AntillesParisFrance
| | - Maëlle Vilbert
- Centre de Recherche sur la Conservation (CRC), CNRS, MNHN, Ministère de la CultureParisFrance
| | - Stephan Borensztajn
- Institut de Physique du Globe de Paris (IPGP), Université de Paris, CNRSParisFrance
| | | | - Florence Piron-Prunier
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, Muséum national d'Histoire naturelle, Sorbonne Université, EPHE, Université des AntillesParisFrance
| | - Aaron Pomerantz
- Marine Biological LaboratoryWoods HoleUnited States
- Department Integrative Biology, University of California BerkeleyBerkeleyUnited States
| | | | - Serge Berthier
- Institut des NanoSciences de Paris (INSP), Sorbonne Université, CNRSParisFrance
| | - Christine Andraud
- Centre de Recherche sur la Conservation (CRC), CNRS, MNHN, Ministère de la CultureParisFrance
| | - Doris Gomez
- Centre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Univ MontpellierMontpellierFrance
| | - Marianne Elias
- Institut de Systématique, Evolution, Biodiversité (ISYEB), CNRS, Muséum national d'Histoire naturelle, Sorbonne Université, EPHE, Université des AntillesParisFrance
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176
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Capparelli MV, Molinero J, Moulatlet GM, Barrado M, Prado-Alcívar S, Cabrera M, Gimiliani G, Ñacato C, Pinos-Velez V, Cipriani-Avila I. Microplastics in rivers and coastal waters of the province of Esmeraldas, Ecuador. Mar Pollut Bull 2021; 173:113067. [PMID: 34688086 DOI: 10.1016/j.marpolbul.2021.113067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/11/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
This study represents the first assessment of microplastic (MP) contamination in the coastal area of the Esmeraldas Province, Ecuador. MPs were quantified in 14 coastal waters in beaches with different urbanization level and in 10 rivers. The most abundant MP types were transparent fibres, brown fragments, grey fragments, transparent fragments, and black fragments, which together represented 84% of the total count. Coastal waters presented significantly higher quantities of MP than rivers. No difference in microplastic abundance was detected between beaches with higher and lower urban occupation, nor between beaches facing North or West. Our results indicate that MP contamination is widespread, and most likely transported from multiple sources. Our results can serve as a baseline for future MP monitoring in the area.
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Affiliation(s)
- Mariana V Capparelli
- Instituto de Ciencias del Mar y Limnología-Estación El Carmen, Universidad Nacional Autónoma de México, Ciudad del Carmen 24157, Mexico; Facultad de Ciencias de la Tierra y Agua, Universidad Regional Amazónica Ikiam, Tena 150150, Ecuador
| | - Jon Molinero
- Escuela de Gestión Ambiental, Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Esmeraldas 080150, Ecuador
| | - Gabriel M Moulatlet
- Facultad de Ciencias de la Tierra y Agua, Universidad Regional Amazónica Ikiam, Tena 150150, Ecuador.
| | - Miren Barrado
- Escuela de Gestión Ambiental, Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Esmeraldas 080150, Ecuador
| | - Santiago Prado-Alcívar
- Escuela de Gestión Ambiental, Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Esmeraldas 080150, Ecuador
| | - Marcela Cabrera
- Laboratorio Nacional de Referencia del Agua. Universidad Regional Amazónica Ikiam, Tena 150150, Ecuador
| | | | - Carolina Ñacato
- Laboratorio de Química, Universidad Regional Amazónica Ikiam, Tena 150150, Ecuador
| | - Veronica Pinos-Velez
- Departamento de Recursos Hídricos y Ciencias Ambientales, Facultad de Ciencias Químicas, Universidad de Cuenca, Cuenca 010202, Ecuador; Departamento de Biociencias, Facultad de Ciencias Químicas, Universidad de Cuenca, Cuenca 010202, Ecuador
| | - Isabel Cipriani-Avila
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Quito 170150, Ecuador
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177
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Cambra M, Lara-Lizardi F, Peñaherrera-Palma C, Hearn A, Ketchum JT, Zarate P, Chacón C, Suárez-Moncada J, Herrera E, Espinoza M. A first assessment of the distribution and abundance of large pelagic species at Cocos Ridge seamounts (Eastern Tropical Pacific) using drifting pelagic baited remote cameras. PLoS One 2021; 16:e0244343. [PMID: 34793440 PMCID: PMC8601560 DOI: 10.1371/journal.pone.0244343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 10/11/2021] [Indexed: 11/18/2022] Open
Abstract
Understanding the link between seamounts and large pelagic species (LPS) may provide important insights for the conservation of these species in open water ecosystems. The seamounts along the Cocos Ridge in the Eastern Tropical Pacific (ETP) ocean are thought to be ecologically important aggregation sites for LPS when moving between Cocos Island (Costa Rica) and Galapagos Islands (Ecuador). However, to date, research efforts to quantify the abundance and distribution patterns of LPS beyond the borders of these two oceanic Marine Protected Areas (MPAs) have been limited. This study used drifting-pelagic baited remote underwater video stations (BRUVS) to investigate the distribution and relative abundance of LPS at Cocos Ridge seamounts. Our drifting-pelagic BRUVS recorded a total of 21 species including elasmobranchs, small and large teleosts, dolphins and one sea turtle; of which four species are currently threatened. Depth of seamount summit was the most significant driver for LPS richness and abundance which were significantly higher at shallow seamounts (< 400 m) compared to deeper ones (> 400m). Distance to nearest MPA was also a significant predictor for LPS abundance, which increased at increasing distances from the nearest MPA. Our results suggest that the Cocos Ridge seamounts, specifically Paramount and West Cocos which had the highest LPS richness and abundance, are important aggregation sites for LPS in the ETP. However, further research is still needed to demonstrate a positive association between LPS and Cocos Ridge seamounts. Our findings showed that drifting pelagic BRUVS are an effective tool to survey LPS in fully pelagic ecosystems of the ETP. This study represents the first step towards the standardization of this technique throughout the region.
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Affiliation(s)
- Marta Cambra
- Programa de Posgrado en Biología, Universidad de Costa Rica, San Pedro, San José, Costa Rica
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, Costa Rica
| | - Frida Lara-Lizardi
- MigraMar, Sir Francis Drake Boulevard, Olema, California, United States of America
- Pelagios Kakunjá, La Paz, Baja California Sur, México
| | | | - Alex Hearn
- MigraMar, Sir Francis Drake Boulevard, Olema, California, United States of America
- Galapagos Science Center, Universidad San Francisco de Quito, Quito, Ecuador
| | - James T. Ketchum
- MigraMar, Sir Francis Drake Boulevard, Olema, California, United States of America
- Pelagios Kakunjá, La Paz, Baja California Sur, México
- Centro de Investigaciones Biológicas del Noroeste-CIBNOR, La Paz, Baja California Sur, México
| | - Patricia Zarate
- MigraMar, Sir Francis Drake Boulevard, Olema, California, United States of America
- División de Investigación Pesquera, Instituto de Fomento Pesquero, Valparaíso, Chile
| | - Carlos Chacón
- Fundación Pacífico, Sabana Norte, San José, Costa Rica
| | | | | | - Mario Espinoza
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, Costa Rica
- MigraMar, Sir Francis Drake Boulevard, Olema, California, United States of America
- Escuela de Biología, Universidad de Costa Rica, San Pedro, San José, Costa Rica
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Martin JL, Lippi CA, Stewart-Ibarra AM, Ayala EB, Mordecai EA, Sippy R, Heras FH, Blackburn JK, Ryan SJ. Household and climate factors influence Aedes aegypti presence in the arid city of Huaquillas, Ecuador. PLoS Negl Trop Dis 2021; 15:e0009931. [PMID: 34784348 PMCID: PMC8651121 DOI: 10.1371/journal.pntd.0009931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 12/07/2021] [Accepted: 10/20/2021] [Indexed: 11/19/2022] Open
Abstract
Arboviruses transmitted by Aedes aegypti (e.g., dengue, chikungunya, Zika) are of major public health concern on the arid coastal border of Ecuador and Peru. This high transit border is a critical disease surveillance site due to human movement-associated risk of transmission. Local level studies are thus integral to capturing the dynamics and distribution of vector populations and social-ecological drivers of risk, to inform targeted public health interventions. Our study examines factors associated with household-level Ae. aegypti presence in Huaquillas, Ecuador, while accounting for spatial and temporal effects. From January to May of 2017, adult mosquitoes were collected from a cohort of households (n = 63) in clusters (n = 10), across the city of Huaquillas, using aspirator backpacks. Household surveys describing housing conditions, demographics, economics, travel, disease prevention, and city services were conducted by local enumerators. This study was conducted during the normal arbovirus transmission season (January—May), but during an exceptionally dry year. Household level Ae. aegypti presence peaked in February, and counts were highest in weeks with high temperatures and a week after increased rainfall. Univariate analyses with proportional odds logistic regression were used to explore household social-ecological variables and female Ae. aegypti presence. We found that homes were more likely to have Ae. aegypti when households had interruptions in piped water service. Ae. aegypti presence was less likely in households with septic systems. Based on our findings, infrastructure access and seasonal climate are important considerations for vector control in this city, and even in dry years, the arid environment of Huaquillas supports Ae. aegypti breeding habitat. Mosquito transmitted infectious diseases are a growing concern around the world. The yellow fever mosquito (Aedes aegypti) has been responsible for recent major outbreaks of disease, including dengue fever and Zika. This mosquito prefers to bite humans and lay its eggs in artificial containers such as water tanks and planters. This makes Ae. aegypti well suited to become established in growing urban areas. Controlling these mosquitoes has been an important way to reduce the risk of disease transmission. Studies that are undertaken to understand local factors that contribute to the continued survival of the mosquito can be used to inform control practices. We conducted a study in the largest Ecuadorian city on the border of Peru where we collected adult mosquitoes from houses and surveyed household members about their behaviors, perceptions, and housing infrastructure associated with the mosquito vector. Mosquitoes were most numerous in weeks with high temperatures and a week after increased rainfall. We found that houses that had unreliable water service were more likely have mosquitoes present, while houses that used septic systems were less likely to have mosquitoes present.
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Affiliation(s)
- James L. Martin
- Quantitative Disease Ecology and Conservation (QDEC) Lab, Department of Geography, University of Florida, Gainesville, Florida, United States of America
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
| | - Catherine A. Lippi
- Quantitative Disease Ecology and Conservation (QDEC) Lab, Department of Geography, University of Florida, Gainesville, Florida, United States of America
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
| | - Anna M. Stewart-Ibarra
- Institute for Global Health & Translational Science, SUNY Upstate Medical University
- Department of Medicine, SUNY Upstate Medical University, Syracuse, New York, United States of America
- InterAmerican Institute for Global Change Research (IAI), Montevideo, Uruguay
| | | | - Erin A. Mordecai
- Biology Department, Stanford University, Stanford, California, United States of America
| | - Rachel Sippy
- Quantitative Disease Ecology and Conservation (QDEC) Lab, Department of Geography, University of Florida, Gainesville, Florida, United States of America
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
- Institute for Global Health & Translational Science, SUNY Upstate Medical University
| | - Froilán Heras Heras
- Institute for Global Health & Translational Science, SUNY Upstate Medical University
| | - Jason K. Blackburn
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
- Spatial Epidemiology and Ecology Research Laboratory, Department of Geography, University of Florida, Gainesville, Florida, United States of America
| | - Sadie J. Ryan
- Quantitative Disease Ecology and Conservation (QDEC) Lab, Department of Geography, University of Florida, Gainesville, Florida, United States of America
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Andrée DC, Marie Anne Eurie F, Niels DT, Isabel GA, Arne D, Wout VE, Lenin RF, Jasmine DR, Liesbeth J, Pieter S, Luis DG, Peter L M G. From field to plate: Agricultural pesticide presence in the guayas estuary ( Ecuador) and commercial mangrove crabs. Environ Pollut 2021; 289:117955. [PMID: 34435567 DOI: 10.1016/j.envpol.2021.117955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/16/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Mangroves are unique coastal ecosystems, located in tropical and subtropical regions. Yet, the functioning of these essential ecosystems is threatened by the presence of pollutants, including pesticides originating from agricultural activities. We investigated pesticide residues in the Guayas estuarine environment, since agricultural activities rapidly increased in the Guayas river basin over the past decades. A multi-residue analysis involving a selection of 88 pesticides was performed on the white meat and the hepatopancreas of the red mangrove crab (Ucides Occidentalis) at 15 sampling sites within the Guayas estuary along with water, sediment, and leaves samples. We found that 35 active compounds were present in the Guayas estuary, of which pyrimethanil was most commonly detected and had the highest concentrations in almost all compartments. Also, cadusafos was present in all studied compartments of the Guayas mangrove system and several prohibited pesticides (including carbendazim, carbofuran, and parathion) were detected. An ecotoxicological and probabilistic consumer risk assessment pointed out that current butachlor, carbendazim, and fludioxonil concentrations can cause adverse effects in aquatic organisms in the long term. Moreover, high potential acute and chronic risks of cadusafos residues on aquatic invertebrates and of diuron on algae in the Guayas wetlands were observed. Still, the exposure results indicated that the health risk for the consumers of the commercial red mangrove crab is low concerning cadusafos, chlorpyrifos, diuron, linuron, and pyrimethanil residues in crab tissues. The findings presented in this research can provide a useful basis for local water managers and environmental conservation groups to act and reduce the usage of pesticides, to avoid threatening aquatic and human health.
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Affiliation(s)
- De Cock Andrée
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
| | - Forio Marie Anne Eurie
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - De Troyer Niels
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Garcia Arevalo Isabel
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium; Laboratoire de Biogéochimie des Contaminants Métalliques, Ifremer, Centre Atlantique, F-44311, Nantes Cedex 3, France
| | - Deknock Arne
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Van Echelpoel Wout
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Riascos Flores Lenin
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - De Rop Jasmine
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Jacxsens Liesbeth
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Spanoghe Pieter
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Dominguez Granda Luis
- Facultad de Ciencias Naturales y Matemáticas, Escuela Superior Politécnica del Litoral ESPOL, Campus Gustavo Galindo, Guayaquil, Ecuador
| | - Goethals Peter L M
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
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Molinero J, Cipriani-Avila I, Barrado M. Heavy metal concentrations in rivers and drinking water of Esmeraldas ( Ecuador) under an intermittent water supply service. Environ Monit Assess 2021; 193:775. [PMID: 34741668 DOI: 10.1007/s10661-021-09579-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Universal access to safe water is a major global goal, but these efforts could be at stake because drinking water sources are becoming polluted in many developing countries. Chlorine, major ions, and heavy metals were measured in rivers and drinking water of Esmeraldas because potential pollution sources raise concerns about the quality of the water supply, and because users have developed strategies to cope with water shortages including collecting river water and water distributed by tankers, storing water at home, and consuming commercial bottled water. We sampled water from the water distribution system (WDS) and the Esmeraldas and Teaone rivers including the intake to the potabilization plant, water distributed by tankers, and commercial bottled water. Most of the samples collected from the Esmeraldas and Teaone rivers, the WDS, and tankers complied with drinking water standards, but higher concentration of cadmium and other metals in the eastern part of the city is an indication of corrosion inside the WDS. Commercial bottled and WDS water showed similar heavy metal concentrations, but regular consumption of some brands may lead to higher exposure to arsenic and mineral deficiencies. Chlorine concentrations in the water supplied by the WDS were below the values required for safe disinfection, and in-house chlorination is uncommon in the city. Strengthening pollution control in the Esmeraldas river, monitoring corrosion of the WDS, and promoting point-use chlorination and better water handling practices are required to secure a safer water supply in the long term.
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Affiliation(s)
- Jon Molinero
- Escuela de Gestión Ambiental, Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Espejo y Subida a Santa Cruz, 080150, Esmeraldas, Ecuador.
| | - Isabel Cipriani-Avila
- Escuela de Química, Pontificia Universidad Católica del Ecuador, 12 de octubre 1076, 170525, Quito, Ecuador
| | - Miren Barrado
- Escuela de Gestión Ambiental, Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Espejo y Subida a Santa Cruz, 080150, Esmeraldas, Ecuador
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181
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Jiménez-Oyola S, García-Martínez MJ, Ortega MF, Chavez E, Romero P, García-Garizabal I, Bolonio D. Ecological and probabilistic human health risk assessment of heavy metal(loid)s in river sediments affected by mining activities in Ecuador. Environ Geochem Health 2021; 43:4459-4474. [PMID: 33881675 DOI: 10.1007/s10653-021-00935-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 04/11/2021] [Indexed: 06/12/2023]
Abstract
Gold mining is a significant source of metal(loid)s released into the environment. It is an issue of concern due to the potential adverse health effects associated with exposure to toxic elements. This study aimed to assess the ecological and human health risk caused by heavy metal(loid)s exposure in river sediments in Ponce Enríquez, one of the most important mining sites in Ecuador. Concentrations of As, Cd, Cu, Pb, and Zn were evaluated in 172 sediment samples to determine the Potential ecological risk (RI) and the carcinogenic (CR) and non-carcinogenic risk (HQ). The human exposure to polluted sediments during recreational activities was computed using Bayesian probabilistic models. Residents were randomly surveyed to adjust the risk models to the specific population data. More than 68% of the sampling stations pose a severe As and Cd ecological risk index ([Formula: see text] > 320). Likewise, residents exposed to river sediments showed a non-acceptable carcinogenic risk by incidental ingestion, being As the primary contributor to overall cancer in both children and adults receptors. Moreover, non-carcinogenic risk through the incidental ingestion of sediments was above the safe limit for children. This is the first study conducted in a mining region in Ecuador that reveals the severe levels of ecological and human health risk to which the population is exposed. These results can be applied as a baseline to develop public health strategies to monitor and reduce the health hazards of the residents of mining communities.
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Affiliation(s)
- Samantha Jiménez-Oyola
- Department of Energy and Fuels, E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, Ríos Rosas 21, 28003, Madrid, Spain
- Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo km 30.5 vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - María-Jesús García-Martínez
- Department of Energy and Fuels, E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, Ríos Rosas 21, 28003, Madrid, Spain.
| | - Marcelo F Ortega
- Department of Energy and Fuels, E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, Ríos Rosas 21, 28003, Madrid, Spain
| | - Eduardo Chavez
- Facultad de Ciencias de la Vida, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo km 30.5 vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Paola Romero
- Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo km 30.5 vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Iker García-Garizabal
- Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo km 30.5 vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - David Bolonio
- Department of Energy and Fuels, E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, Ríos Rosas 21, 28003, Madrid, Spain
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González-López NA, Parra-Riofrío KM, Batista-Zaldívar MA, Carrillo-Vallejo E, Yanchapanta-Bastidas VN. Niveles de referencia de dosis para adultos en procedimientos de cardiología intervencionista en Ecuador. Arch Cardiol Mex 2021; 91:415-421. [PMID: 33401285 PMCID: PMC8641475 DOI: 10.24875/acm.20000196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 11/20/2020] [Indexed: 11/17/2022] Open
Abstract
Antecedents and objective The knowledge of the reference levels for diagnoses and therapeutic studies is important, because it contributes to the optimization of the radiological protection of the patients, avoiding them to be exposed to unnecessarily high doses. However, there was no evidence of these levels in interventionist cardiology procedures in Ecuador, so the objective of this study was to estimate the diagnostic reference levels of dose at the entrance surface in adult patients undergoing interventional cardiology procedures (cinecoronariography, catheterization and coronary percutaneous interventionism) in the Unit of Hemodynamic of the Hospital of Specialties Carlos Andrade Marín in Ecuador. Materials and methods The measurements of product dose-area, dose in input surface, number of images and the time of fluoroscopy performed using the Axiom Artis angiographer, and the obtained data was tabulated and processed with the Excel computer program. For this study, 145 patients older than 18 years were selected, and the values obtained from diagnostic reference dose levels were compared with others reported in previous investigations and with the permissible limits for the appearance of deterministic effects on the skin. Results This study made it possible to establish reference levels for diagnosis in interventional cardiology procedures (coronary angiography, catheterization and percutaneous coronary intervention) in the Hemodynamics Unit of the Carlos Andrade Marín Specialty Hospital in Ecuador. Conclusions The results showed that the intake surface doses obtained were lower than the maximum levels recommended by the International Atomic Energy Agency.
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Affiliation(s)
- Nadia A. González-López
- Departamento de Física, Instituto de Ciencias Básicas, Universidad Técnica de Manabí, Portoviejo
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Székely P, Székely D, Ordóñez-Delgado L, Armijos-Ojeda D, Vörös J. Our unknown neighbor: A new species of rain frog of the genus Pristimantis (Amphibia: Anura: Strabomantidae) from the city of Loja, southern Ecuador. PLoS One 2021; 16:e0258454. [PMID: 34705824 PMCID: PMC8550592 DOI: 10.1371/journal.pone.0258454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/24/2021] [Indexed: 11/24/2022] Open
Abstract
We describe a new species of rain frog of the genus Pristimantis from the city of Loja, Southern Ecuador, based on an integrative taxonomy approach, combining molecular, morphological and bioacoustics data. Pristimantis lojanus sp. nov. is a medium sized species of the phylogenetically strongly supported P. phoxocephalus group, and its sister species is P. torresi. The new species can be easily distinguished from its closest congeners and morphologically similar species (that also have acuminate snout with a fleshy keel) by its characteristic advertisement call and morphological features (dorsum finely tuberculate with scattered larger tubercles, flanks without longitudinal lateral folds, no markings in axilla, groin or on concealed limb surfaces, and bronze iris). Additionally, we describe the advertisement call of its sister species, P. torresi. Finally, we detail the current situation of the amphibian species present in the city of Loja and its surroundings.
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Affiliation(s)
- Paul Székely
- Museo de Zoología, Universidad Técnica Particular de Loja, Loja, Ecuador
- Departamento de Ciencias Biológicas y Agropecuarias, Laboratorio de Ecología Tropical y Servicios Ecosistémicos (EcoSs-Lab), Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
| | - Diana Székely
- Museo de Zoología, Universidad Técnica Particular de Loja, Loja, Ecuador
- Departamento de Ciencias Biológicas y Agropecuarias, Laboratorio de Ecología Tropical y Servicios Ecosistémicos (EcoSs-Lab), Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
- * E-mail:
| | - Leonardo Ordóñez-Delgado
- Museo de Zoología, Universidad Técnica Particular de Loja, Loja, Ecuador
- Departamento de Ciencias Biológicas y Agropecuarias, Laboratorio de Ecología Tropical y Servicios Ecosistémicos (EcoSs-Lab), Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
- Programa de Doctorado en Conservación de Recursos Naturales, Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Madrid, Spain
| | - Diego Armijos-Ojeda
- Museo de Zoología, Universidad Técnica Particular de Loja, Loja, Ecuador
- Departamento de Ciencias Biológicas y Agropecuarias, Laboratorio de Ecología Tropical y Servicios Ecosistémicos (EcoSs-Lab), Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
- Programa de Doctorado en Conservación de Recursos Naturales, Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Madrid, Spain
| | - Judit Vörös
- Department of Zoology, Hungarian Natural History Museum, Budapest, Hungary
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Walentowitz A, Manthey M, Bentet Preciado MB, Chango R, Sevilla C, Jäger H. Limited natural regeneration of unique Scalesia forest following invasive plant removal in Galapagos. PLoS One 2021; 16:e0258467. [PMID: 34644364 PMCID: PMC8513895 DOI: 10.1371/journal.pone.0258467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 09/28/2021] [Indexed: 11/28/2022] Open
Abstract
More than 60% of the flora of the Galapagos Islands is introduced and some of these species have become invasive, severely altering ecosystems. An example of an affected ecosystem is the Scalesia forest, originally dominated by the endemic giant daisy tree Scalesia pedunculata (Asteraceae). The remnant patches of this unique forest are increasingly being invaded by introduced plants, mainly by Rubus niveus (blackberry, Rosaceae). To help large-scale restoration of this ecologically important forest, we seek to better understand the natural regeneration of S. pedunculata after invasive plant control. We monitored naturally recruited S. pedunculata saplings and young trees over five years in an area where invasive plant species are continuously being removed by manual means. We measured survival, height and growth of S. pedunculata saplings and young trees along permanent transects. Percent cover of surrounding plant species and of canopy shade directly above each S. pedunculata individual were determined, as well as distance to the next mature S. pedunculata tree. We identified potential factors influencing initial sapling survival and growth by applying generalized linear models. Results showed a rapid growth of saplings and young trees of up to 0.45 cm per day and a high mortality rate, as is typical for pioneer species like S. pedunculata. Sapling survival, growth and mortality seemed to be influenced by light availability, surrounding vegetation and distance to the next adult S. pedunculata tree. We concluded that natural regeneration of S. pedunculata was high only five months after the last herbicide application but that 95% of these recruits had died over the 5-year period. Further studies are needed to corroborate whether the number of surviving trees is sufficient to replace the aging adult trees and this way maintain remnants of the Scalesia forest. Urgent action is needed to help improve future restoration strategies to prevent further degradation of this rapidly shrinking threatened forest ecosystem.
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Affiliation(s)
- Anna Walentowitz
- Department of Biogeography, University of Bayreuth, Bayreuth, Germany
- * E-mail:
| | - Michael Manthey
- Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
| | | | - Rafael Chango
- Galapagos National Park Directorate, Galapagos, Ecuador
| | | | - Heinke Jäger
- Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Galapagos, Ecuador
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Alvarado-Villa G, KuonYeng-Escalante C, Sagñay-Pinilla N, Vera Paz C, Cherrez-Ojeda I. Perceptions and knowledge of telemedicine in Ecuadorian practicing physicians: an instrument adaptation, validation and translation from English to Spanish. BMC Public Health 2021; 21:1781. [PMID: 34600498 PMCID: PMC8486965 DOI: 10.1186/s12889-021-11826-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 09/20/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND During the COVID-19 pandemic, multiple countries have taken measures, such as isolation and quarantine, to prevent person-to-person spread of disease. These actions forced many physicians to adopt new techniques, such as telemedicine, to continue patient care, which has proven to be useful in continued care for those with non-COVID-19 pathologies. Various factors, such as security, confidentiality, cost-effectiveness, comfort, and the risk of malpractice, influence the perception of telemedicine among medical practitioners. The aim of this study was to adapt an existing instrument and validate it into a new Spanish version. The instrument is about the perceptions and knowledge of telemedicine in healthcare professionals. METHODS The original questionnaire surveyed 6 domains with 40 questions, and each question was measured with a five-point Likert scale ranging from very high [5] to very low [1]. The survey was translated to Spanish using machine translation. The translation was reviewed independently, and then, a consensus was achieved regarding minor changes in the syntax of the survey to facilitate understanding. After expert feedback and questionnaire review, the research team members proposed reducing the instrument to 13 items in 4 domains due to the similarity of some questions. The sample was divided into 2randomly selected groups. Eligibility criteria included physicians providing private or public services with active medical/clinical practice. RESULTS In total, 382 surveys were collected and separated into two random samples, S1 and S2 (198 and 184, respectively). In exploratory factor analysis (EFA), the 13 items were grouped into four theoretical domains, and item 7 presented cross loading between factors and was removed. Confirmatory factor analysis was performed to assess the scale reliability and interscale associations; three models were tested. Global Cronbach's alpha for internal consistency was 0.76 for the EFA. The goodness of fit measures root mean square error of approximation and comparative fit index were 0.009 and 0.999, respectively, for the best model. CONCLUSIONS The translated instrument was clear, with adequate internal consistency, readability, and appropriate for application in the physician setting. This validated questionnaire made it possible to evaluate physicians' knowledge of telemedicine to increase its use, especially during the COVID-19 pandemic.
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Jones JS, Porter A, Muñoz-Pérez JP, Alarcón-Ruales D, Galloway TS, Godley BJ, Santillo D, Vagg J, Lewis C. Plastic contamination of a Galapagos Island ( Ecuador) and the relative risks to native marine species. Sci Total Environ 2021; 789:147704. [PMID: 34049146 DOI: 10.1016/j.scitotenv.2021.147704] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Ecuador's Galapagos Islands and their unique biodiversity are a global conservation priority. We explored the presence, composition and environmental drivers of plastic contamination across the marine ecosystem at an island scale, investigated uptake in marine invertebrates and designed a systematic priority scoring analysis to identify the most vulnerable vertebrate species. Beach contamination varied by site (macroplastic 0-0.66 items·m-2, microplastics 0-448.8 particles·m-2 or 0-74.6 particles·kg-1), with high plastic accumulation on east-facing beaches that are influenced by the Humboldt Current. Local littering and waste management leakages accounted for just 2% of macroplastic. Microplastics (including anthropogenic cellulosics) were ubiquitous but in low concentrations in benthic sediments (6.7-86.7 particles·kg-1) and surface seawater (0.04-0.89 particles·m-3), with elevated concentrations in the harbour suggesting some local input. Microplastics were present in all seven marine invertebrate species examined, found in 52% of individuals (n = 123) confirming uptake of microplastics in the Galapagos marine food web. Priority scoring analysis combining species distribution information, IUCN Red List conservation status and literature evidence of harm from entanglement and ingestion of plastics in similar species identified 27 marine vertebrates in need of urgent, targeted monitoring and mitigation including pinnipeds, seabirds, turtles and sharks.
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Affiliation(s)
- Jen S Jones
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK; Galapagos Conservation Trust, 7-14 Great Dover Street, London SE1 4YR, UK
| | - Adam Porter
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Juan Pablo Muñoz-Pérez
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC), Av. Alsacio Northia, Isla San Cristobal, Galápagos, Ecuador; School of Science and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Daniela Alarcón-Ruales
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC), Av. Alsacio Northia, Isla San Cristobal, Galápagos, Ecuador
| | - Tamara S Galloway
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Brendan J Godley
- Centre for Ecology & Conservation, University of Exeter, Penryn TR10 9FE, UK
| | - David Santillo
- Greenpeace Research Laboratories, School of Biosciences, Innovation Centre Phase 2, University of Exeter, Exeter EX4 4QD, United Kingdom
| | - Jessica Vagg
- Centre for Ecology & Conservation, University of Exeter, Penryn TR10 9FE, UK
| | - Ceri Lewis
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK.
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188
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Hermosa-Bosano C, Hidalgo-Andrade P, Paz C. Geosocial Networking Apps Use Among Sexual Minority Men in Ecuador: An Exploratory Study. Arch Sex Behav 2021; 50:2995-3009. [PMID: 34117560 PMCID: PMC8563596 DOI: 10.1007/s10508-021-01921-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 01/04/2021] [Accepted: 01/15/2021] [Indexed: 06/04/2023]
Abstract
Geosocial networking applications (GSN apps) have become important socialization contexts for sexual minority men (SMM). Despite their popularity, there is limited research carried out in Latin American countries and no single previous study done in Ecuador. To fill this gap, this exploratory study described and analyzed the relationships between the sociodemographic characteristics of SMM using GSN apps, their sought and fulfilled expectations, profile shared and sought characteristics, and the evaluation of their experiences as users including their perceptions of support, and discrimination. We used an online recruited sample of 303 participants enrolled between November 2019 and January 2020. Most respondents used Grindr and reported spending up to 3 h per day using apps. Most common sought expectations were getting distracted, meeting new friends, and meeting people for sexual encounters. The least met expectation was meeting someone to build a romantic relationship with. When asked about their profiles, participants reported sharing mainly their age, photographs, and sexual role. Participants also prioritized these characteristics when looking at others' profiles. When asked about their experiences, most reported having been discriminated against, weight being the main reason for it. Some participants also indicated having received emotional support from other users. Correlation analyses indicated significant but weak relationships among the variables. Results indicated a positive correlation between time as an active GSN app user and higher experiences of discrimination. Likewise, higher number of used apps related positively with levels of received support. These results provide information that could inform future research in the country and the region regarding GSN apps use among SMM, socialization practices, and modern dating tools.
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Affiliation(s)
- Carlos Hermosa-Bosano
- School of Psychology, Universidad de Las Américas (UDLA), Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, 170124, Quito, Ecuador.
| | - Paula Hidalgo-Andrade
- School of Psychology, Universidad de Las Américas (UDLA), Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, 170124, Quito, Ecuador
| | - Clara Paz
- School of Psychology, Universidad de Las Américas (UDLA), Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, 170124, Quito, Ecuador
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Aguirre WE, Alvarez‐Mieles G, Anaguano‐Yancha F, Burgos Morán R, Cucalón RV, Escobar‐Camacho D, Jácome‐Negrete I, Jiménez Prado P, Laaz E, Miranda‐Troya K, Navarrete‐Amaya R, Nugra Salazar F, Revelo W, Rivadeneira JF, Valdiviezo Rivera J, Zárate Hugo E. Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity. J Fish Biol 2021; 99:1158-1189. [PMID: 34235726 PMCID: PMC8518725 DOI: 10.1111/jfb.14844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/04/2021] [Accepted: 07/04/2021] [Indexed: 06/01/2023]
Abstract
Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018-19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's freshwater fishes. Concerns were identified for 35 species, most of which are native to the Amazon region, and overfishing of Amazonian pimelodid catfishes emerged as a major issue. However, much of the information needed to make decisions across fish groups and regions was not available, hindering the process and highlighting the need for a review of the conservation threats to Ecuador's freshwater fishes. Here, we review how the physical alteration of rivers, deforestation, wetland and floodplain degradation, agricultural and urban water pollution, mining, oil extraction, dams, overfishing, introduced species and climate change are affecting freshwater fishes in Ecuador. Although many of these factors affect fishes throughout the Neotropics, the lack of data on Ecuadorian fish communities is staggering and highlights the urgent need for more research. We also make recommendations, including the need for proper enforcement of existing environmental laws, restoration of degraded aquatic ecosystems, establishment of a national monitoring system for freshwater ecosystems, investment in research to fill gaps in knowledge, and encouragement of public engagement in citizen science and conservation efforts. Freshwater fishes are an important component of the cultural and biological legacy of the Ecuadorian people. Conserving them for future generations is critical.
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Affiliation(s)
- Windsor E. Aguirre
- Department of Biological SciencesDePaul UniversityChicagoIllinoisUSA
- Instituto Nacional de BiodiversidadQuitoEcuador
- Field Museum of Natural HistoryChicagoIllinoisUSA
| | | | | | | | - Roberto V. Cucalón
- Department of Biological SciencesDePaul UniversityChicagoIllinoisUSA
- Present address:
Program in Ecology, Evolution, and Conservation BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
| | | | - Iván Jácome‐Negrete
- Facultad de Ciencias Biológicas, Instituto de Estudios Amazónicos e InsularesUniversidad Central del EcuadorQuitoEcuador
| | - Pedro Jiménez Prado
- Pontificia Universidad Católica del Ecuador Sede EsmeraldasEsmeraldasEcuador
- Área de Ecología, Departamento de Ciencias Agrarias y del Medio Natural, Escuela Politécnica Superior de HuescaUniversidad de ZaragozaHuescaSpain
| | - Enrique Laaz
- Instituto Público de Investigación de Acuicultura y PescaGuayaquilEcuador
| | | | | | - Fredy Nugra Salazar
- ONG Bosque Medicinal, ONG Forest.inkGualaquizaEcuador
- Laboratorio de Limnología de la Universidad del AzuayCuencaEcuador
| | - Willan Revelo
- Unidad de Recursos Demersales Bentónicos de Agua Dulce y EmbalsesInstituto Público de Investigación de Acuicultura y PescaGuayaquilEcuador
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Hermosa-Bosano C, Paz C, Hidalgo-Andrade P, Aguayo-Romero R. Sexual Behaviors and HIV/STI Prevention Strategies Among Sexual Minority Men in Ecuador Who Use Geosocial Networking Apps. Arch Sex Behav 2021; 50:3011-3021. [PMID: 34585282 PMCID: PMC8563564 DOI: 10.1007/s10508-021-02093-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 06/15/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Around the world, geosocial networking apps have become widely popular among sexual minority men (SMM). This research analyzed the sexual behaviors and HIV and STI prevention strategies (HIV/STI testing, HIV/STI inquiry, and HIV/STI disclosure) of an online-recruited sample of 284 SMM living in Ecuador. Sexting and oral sex were the most common sexual behaviors among SMM in the sample. Most participants had low perceptions of HIV and STI risk; 85% reported being tested for HIV and 70% for STIs. Being older predicted higher odds of being tested for either HIV or STIs at least once. Being single also predicted HIV testing. Future interventions in the country should explore apps' utility as intervention tools to spread information about sexual health and HIV prevention strategies, such as condom use and event-driven PrEP. Apps can also facilitate connections to sexual health services, including programs for PrEP initiation and linkage to HIV treatment. They should also focus on promoting sexual harm reduction conversations among potential app-met sexual partners.
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Affiliation(s)
- Carlos Hermosa-Bosano
- School of Psychology, Universidad de Las Américas, Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, Quito, 170124, Ecuador.
| | - Clara Paz
- School of Psychology, Universidad de Las Américas, Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, Quito, 170124, Ecuador
| | - Paula Hidalgo-Andrade
- School of Psychology, Universidad de Las Américas, Redondel del Ciclista, Antigua Vía a Nayón, Campus UDLAPark, Quito, 170124, Ecuador
| | - Rodrigo Aguayo-Romero
- Brigham and Women's Hospital, Harvard Medical School, The Fenway Institute, Boston, MA, USA
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191
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Román-Collado R, Sanz-Díaz MT, Loja Pacheco C. Towards the decarbonisation of Ecuador: a multisectoral and multiregional analysis of its carbon footprint. Environ Sci Pollut Res Int 2021; 28:53412-53431. [PMID: 34031824 DOI: 10.1007/s11356-021-14521-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Globally, interest in the environment and its conservation is growing and primordial. Emissions abatement is one of the main challenges faced by different governments. Firstly, the emissions should be estimated, and two types of responsibilities or focuses stand out, the producer's and the consumer's. Based on the Multiregional Input-Output Methodology, this study determines Ecuador's responsibility in terms of CO2 emissions. It defines the economic sectors that have the greatest representation in these emissions, as well as establishing an assessment at the level of the Trade Balance. To do so, the EORA database was used. There has been a strong growth of Ecuador's Footprint of 145.26% from 2000 to 2015, with the transport and secondary sectors having the highest representation and the trade with the BRICS nations standing out. This result strengthens the need to foster a change in the consumption patterns of the population and the public administrations. It is therefore recommended that the authorities allocate part of the public budget to measures oriented to sustainable consumption. Amongst other measures, it would be advisable to extend the RENOVA Plan to private vehicles, as well as to launch awareness campaigns on the degree of sustainability of imported products. These types of measures could stop the strong growth in emissions per capita, essential to reduce the country's carbon footprint.
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Affiliation(s)
- Rocío Román-Collado
- Facultad de Ciencias Económicas y Empresariales, Universidad de Sevilla, Avda. Ramón y Cajal, 1, C.P, 41018, Sevilla, Spain
- Universidad Autónoma de Chile, Providencia, Chile
| | - María Teresa Sanz-Díaz
- Facultad de Ciencias Económicas y Empresariales, Universidad de Sevilla, Avda. Ramón y Cajal, 1, C.P, 41018, Sevilla, Spain.
| | - Cristian Loja Pacheco
- Facultad de Ciencias Económicas y Empresariales, Universidad de Sevilla, Avda. Ramón y Cajal, 1, C.P, 41018, Sevilla, Spain
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192
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Bustamante-Granda BF, Rodríguez-Hidalgo C, Cisneros-Vidal MA, Rivera-Rogel D, Torres-Montesinos C. Ecuadorian Journalists Mental Health Influence on Changing Job Desire: A Cross Sectional Study. Int J Environ Res Public Health 2021; 18:ijerph181910139. [PMID: 34639441 PMCID: PMC8508482 DOI: 10.3390/ijerph181910139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 01/10/2023]
Abstract
Journalist’s mental health could predict their job change. This study aims at determining the prevalence of mental health issues and their association with perception of aptitude for covering emergencies and difficulty in seeing a corpse, and also to determine the mental health factors associated with job change. An ad hoc survey, GHQ-28 (Somatization, Anxiety-Insomnia, Social Dysfunction, Depression), MBI-P (Burnout, Emotional Exhaustion, Depersonalization, personal accomplishment) and Brief scale to diagnose Post-Traumatic Stress Disorder and Suicide Risk were applied to 196 journalists (female = 51.6%). Descriptive analysis, correlations (Pearson and Spearman), T-test and binary logistic regression were performed. It was found that one third part of journalists perceive themselves as having low aptitude to cover emergencies and difficulty in seeing a corpse, 17.3% would consider changing jobs and 42.1% could only access free mental health services. The most frequent mental health problems are: low personal accomplishment, emotional exhaustion and post-traumatic stress disorder (11.2 to 17.3%). People who want to change jobs present more: social dysfunction, depression, emotional exhaustion, depersonalization, low personal accomplishment, post-traumatic stress disorder and suicide risk. The two mental health factors associated with desire of changing jobs are high emotional exhaustion, and low personal accomplishment. These results guide the psychosocial risk prevention processes for journalists, as well as the training needs that universities could consider to protect the mental health of this vulnerable group.
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193
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Górriz AB, Etchezahar E, Pinilla-Rodríguez DE, Giménez-Espert MDC, Soto-Rubio A. Validation of TMMS-24 in Three Spanish-Speaking Countries: Argentina, Ecuador, and Spain. Int J Environ Res Public Health 2021; 18:9753. [PMID: 34574687 PMCID: PMC8469647 DOI: 10.3390/ijerph18189753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 11/17/2022]
Abstract
Emotional intelligence (EI) is a fundamental skill related to different aspects of human life, such as psychological well-being or mood states. The present study has a triple objective: first, to explore the psychometric properties of the TMMS-24 in three Spanish-speaking countries (Argentina, Ecuador, and Spain); second, to examine the relation of EI with mood and avoidance of responsibility; and finally, to analyse the influence of sex, age and national differences on EI. The relevance of this study is given by the need for tools to assess EI in different cultures. A sample of 1048 adults (Mage = 21.11 years, SD = 5.84; 52.3% male) was selected by convenience sampling. The psychometric properties of the TMMS-24 were adequate, and the Spanish sample showed lower levels of EI than the Argentinian and Ecuadorian ones. EI was associated with mood and the avoidance of responsibility, with higher levels in women in all cases. Regarding the national and sex-specific differences, the Spanish sample showed significant differences in attention and repair, with men exhibiting higher scores in attention and women having higher scores in repair. In the Argentinean sample, no significant differences were found, and in the Ecuadorian one, women presented higher scores in attention than men. The TMMS-24 can be considered a useful, practical tool to assess EI in adults in different cultures and with different languages.
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Affiliation(s)
- Ana Belén Górriz
- Department of Developmental Psychology, Universitat Jaume I, 12071 Castellón, Spain
| | - Edgardo Etchezahar
- Faculty of Psychology, Universidad Nacional de Buenos Aires, Buenos Aires 1417, Argentina
| | - Diego E Pinilla-Rodríguez
- Faculty of Political and Administrative Sciences, Universidad Nacional de Chimborazo, Chimborazo 060110, Ecuador
| | | | - Ana Soto-Rubio
- Department of Personality, Assessment and Psychological Treatments, Faculty of Psychology, University of Valencia, 46010 Valencia, Spain
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194
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Nieto-Claudin A, Deem SL, Rodríguez C, Cano S, Moity N, Cabrera F, Esperón F. Antimicrobial resistance in Galapagos tortoises as an indicator of the growing human footprint. Environ Pollut 2021; 284:117453. [PMID: 34090252 DOI: 10.1016/j.envpol.2021.117453] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Antimicrobial resistance has become one of the main public health threats worldwide with anthropogenic activities driving the spread of resistance. Understanding and combatting the spread of resistant bacteria is a top priority for global health institutions, and it is included as one of the main goals of the One Health initiative. Giant tortoises (Chelonoidis spp.), some of the most iconic species on Earth, are widely distributed across the Galapagos archipelago and are thus perfect candidates to test the hypothesis that wildlife species in the Galapagos carry antimicrobial resistant genes (ARGs) associated with human activities. We sampled a total of 200 free-living Galapagos tortoises from western Santa Cruz Island (C. porteri), the most human-populated island of the archipelago, and 70 tortoises (C. vandenburghi) from the isolated Alcedo Volcano on Isabela Island, a natural area with minimal human presence. Fecal samples were analyzed by quantitative PCR for a panel of 21 ARGs conferring resistance for eight antimicrobial classes. We found ARGs in both Santa Cruz and Alcedo Volcano giant tortoises; however, both qualitative and quantitative results showed higher loads of ARGs in tortoises inhabiting the human modified environments of Santa Cruz. Moreover, Santa Cruz tortoises sampled in higher human-modified landscapes (i.e., farmlands and urban areas) presented a higher number of ARGs, antimicrobial classes, and multi-resistant microbiomes than those from less anthropized areas within the same island. Our findings suggest that human activities in Galapagos have a negative impact on ecosystem health through ARG dispersal. This research highlights a new threat for the health and conservation of the unique wildlife of the Galapagos, their ecosystems, and the humans inhabiting this World Heritage Site. Our recommendation to local policy makers is to control and reduce the use of antibiotics in both human and animal health, thus helping enforce antimicrobial regulations.
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Affiliation(s)
- Ainoa Nieto-Claudin
- Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Galapagos, Ecuador; Complutense University of Madrid, Veterinary Faculty, Puerta de Hierro Av, Madrid, 28040. Spain; Saint Louis Zoo Institute for Conservation Medicine, One Government Drive, Saint Louis, MO, 63110. USA.
| | - Sharon L Deem
- Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Galapagos, Ecuador; Saint Louis Zoo Institute for Conservation Medicine, One Government Drive, Saint Louis, MO, 63110. USA.
| | - Casilda Rodríguez
- Complutense University of Madrid, Veterinary Faculty, Puerta de Hierro Av, Madrid, 28040. Spain.
| | - Santiago Cano
- Complutense University of Madrid, Veterinary Faculty, Puerta de Hierro Av, Madrid, 28040. Spain.
| | - Nicolas Moity
- Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Galapagos, Ecuador.
| | - Freddy Cabrera
- Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Galapagos, Ecuador.
| | - Fernando Esperón
- Complutense University of Madrid, Veterinary Faculty, Puerta de Hierro Av, Madrid, 28040. Spain; INIA-CISA. Algete-El Casar Road, Valdeolmos, 28130. Spain.
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195
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Rechberger MV, Roberti D, Phillips A, Zehetner F, Keiblinger KM, Kandeler E, Gerzabek MH. Cadmium retention and microbial response in volcanic soils along gradients of soil age and climate on the Galápagos Islands. J Environ Qual 2021; 50:1233-1245. [PMID: 34350988 DOI: 10.1002/jeq2.20275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
The behavior of trace metals may vary strongly in the course of volcanic soil development. Cadmium retention in soils is specifically important for some Galápagos islands where agriculture is leading to anthropogenic Cd contamination. To assess the influence of soil development factors on soil Cd retention and toxicity, we performed Cd sorption-desorption experiments with volcanic topsoils from the Galápagos Islands sampled along gradients of (a) substrate age (chronosequence, 1.5-1,070 ka) and (b) climate (elevation sequence, 47-866 m asl) ranging from arid lowland areas to humid highland areas. Additionally, the effects of Cd toxicity on the soil microbial community composition were evaluated for two soils of the chronosequence. In young volcanic soils, the sorption capacity was very high but decreased rapidly with soil age and increasing elevation. These trends were coupled with decreases in soil weathering indicators (e.g., electrical conductivity, pH, and effective cation exchange capacity) as well as changes in soil mineralogy. Cadmium addition did not influence total phospholipid fatty acids and basal respiration in most soils. However, with increasing Cd concentration, a pronounced reduction in the Gram-negative/Gram-positive bacteria ratio (from 0.32 to 0.12) occurred in an old, highly weathered soil with low Cd retention capacity. Our results show that up to 60% of added Cd was only weakly sorbed in old volcanic soils. As a consequence, the old volcanic soils of Galápagos bear the potential risk that the mobile Cd fraction is taken up by soil microorganisms, transferring this element into the food chain.
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Affiliation(s)
- Maria V Rechberger
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
| | - Daniela Roberti
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
| | - Avion Phillips
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
- Institute of Soil Science and Land Evaluation, Univ. of Hohenheim, Emil-Wolff-Str. 27, Stuttgart, 70599, Germany
| | - Franz Zehetner
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
- Galápagos National Park Directorate, Av. Charles Darwin s/n, Puerto Ayora, Santa Cruz, Galápagos, Ecuador
| | - Katharina M Keiblinger
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
| | - Ellen Kandeler
- Institute of Soil Science and Land Evaluation, Univ. of Hohenheim, Emil-Wolff-Str. 27, Stuttgart, 70599, Germany
| | - Martin H Gerzabek
- Institute of Soil Research, Univ. of Natural Resources and Life Sciences, Peter-Jordan-Str. 82, Vienna, 1190, Austria
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Alvarado Espejo JM, Torres Ontaneda WI, Aguirre Padilla NI, Ochoa-Moreno WS. Water saving practices conditioned by socioeconomic factors: A case study of Ecuadorian households. J Environ Manage 2021; 293:112818. [PMID: 34087645 DOI: 10.1016/j.jenvman.2021.112818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 05/08/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
One of the essential environmental goods is water, thus, some governments have implemented policies that allow regulating and protecting this valuable resource. Additionally, it is necessary to understand the behaviour of people to its consumption. The objective of this paper is to determine which socioeconomic factors have a greater influence on water-saving practices in households in Ecuador and thus be able to recommend policy formulations that help to conserve it. The database for the Monitoring Survey for the National Development Plan applied by the National Institute of Statistics and Censuses [INEC] (December 2019) was used. The sections of the survey that were used to obtain the variables were: education, environmental information, housing, and household data. Furthermore, the econometric logit model was used to identify the factors that influence water-saving practices in the home and five main dependent variables were taken into account: closing the taps while soaping the dishes or doing other activities, showering for less than 10 min, using a bucket and not a hose for certain activities, checking pipes regularly and water reuse while the independent variables were grouped into two groups: socio-economic and environmental awareness and responsibility. The results show that the most significant determinant variables of water-saving practices for households in Ecuador are gender, marital status, homeownership, and the main finding is the variable of perception of environmental problems, which is significant in most of the proposed models. Finally, as a policy implication, in addition to the tax burden on water consumption, governments can implement campaigns that promote awareness, saving, and the proper use of this resource; laws can also be established that sanction the misuse of water.
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Kor L, Homewood K, Dawson TP, Diazgranados M. Sustainability of wild plant use in the Andean Community of South America. Ambio 2021; 50:1681-1697. [PMID: 33861399 PMCID: PMC8285437 DOI: 10.1007/s13280-021-01529-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/07/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Overexploitation is the second biggest driver of global plant extinction. Meanwhile, useful plant species are vital to livelihoods across the world, with global conservation efforts increasingly applying the concept of 'conservation-through-use.' However, successfully balancing conservation and biodiversity use remains challenging. We reviewed literature on the sustainability of wild-collected plant use across the countries of Colombia, Ecuador, Peru, and Bolivia-a region of global importance for its biological and cultural richness. After applying defined search terms and a two-stage screening process, 68 articles were reviewed. The numbers which reported sustainable, unsustainable, or context-dependent outcomes were relatively even, but national differences emerged. Through narrative synthesis, we identified five key, reoccurring themes: plant biology; land tenure; knowledge, resource, and capacity; economics and market pressures; and institutional structures, policy, and legislation. Our results show the need for flexible, context-specific approaches and the importance of collaboration, with bottom-up management and conservation methods involving local communities and traditional ecological knowledge often proving most effective.
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Affiliation(s)
- Laura Kor
- Natural Capital and Plant Health Department, The Herbarium, Royal Botanic Gardens Kew, Richmond, TW9 3AE UK
- Department of Geography, Bush House NE, King’s College London, London, WC2B 4BG UK
| | - Katherine Homewood
- Anthropology Department, University College London, Gower Street, London, WC1E 6BT UK
| | - Terence P. Dawson
- Department of Geography, Bush House NE, King’s College London, London, WC2B 4BG UK
| | - Mauricio Diazgranados
- Natural Capital and Plant Health Department, Royal Botanic Gardens Kew, Wakehurst Place, Ardingly, RH17 6TN UK
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Bai Q, Wan A, Wang M, See DR, Chen X. Molecular Characterization of Wheat Stripe Rust Pathogen ( Puccinia striiformis f. sp. tritici) Collections from Nine Countries. Int J Mol Sci 2021; 22:ijms22179457. [PMID: 34502363 PMCID: PMC8430876 DOI: 10.3390/ijms22179457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 11/20/2022] Open
Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most important diseases of wheat worldwide. To understand the worldwide distribution of its molecular groups, as well as the diversity, differentiation, and migration of the Pst populations, 567 isolates collected from nine countries (China, Pakistan, Italy, Egypt, Ethiopia, Canada, Mexico, Ecuador, and the U.S.) in 2010–2018 were genotyped using 14 codominant simple sequence repeat markers. A total of 433, including 333 new multi-locus genotypes (MLGs), were identified, which were clustered into ten molecular groups (MGs). The MGs and country-wise populations differed in genetic diversity, heterozygosity, and correlation coefficient between the marker and virulence data. Many isolates from different countries, especially the isolates from Mexico, Ecuador, and the U.S., were found to be identical or closely related MLGs, and some of the MGs were present in all countries, indicating Pst migrations among different countries. The analysis of molecular variance revealed 78% variation among isolates, 12% variation among countries, and 10% variation within countries. Only low levels of differentiation were found by the pairwise comparisons of country populations. Of the 10 MGs, 5 were found to be involved in sexual and/or somatic recombination. Identical and closely related MLGs identified from different countries indicated international migrations. The study provides information on the distributions of various Pst genetic groups in different countries and evidence for the global migrations, which should be useful in understanding the pathogen evolution and in stressing the need for continual monitoring of the disease and pathogen populations at the global scale.
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Affiliation(s)
- Qing Bai
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA; (Q.B.); (A.W.); (M.W.); (D.R.S.)
| | - Anmin Wan
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA; (Q.B.); (A.W.); (M.W.); (D.R.S.)
| | - Meinan Wang
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA; (Q.B.); (A.W.); (M.W.); (D.R.S.)
| | - Deven R. See
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA; (Q.B.); (A.W.); (M.W.); (D.R.S.)
- U.S. Department of Agriculture, Agricultural Research Service, Wheat Health, Genetics, and Quality Research Unit, Pullman, WA 99164-6430, USA
| | - Xianming Chen
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA; (Q.B.); (A.W.); (M.W.); (D.R.S.)
- U.S. Department of Agriculture, Agricultural Research Service, Wheat Health, Genetics, and Quality Research Unit, Pullman, WA 99164-6430, USA
- Correspondence: ; Tel.: +1-509-335-8086
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199
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Affiliation(s)
- Stijntje Dijk
- Erasmus University Medical Centre, Rotterdam, Netherlands
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200
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Wang Y, Armijos RX, Xun P, Weigel MM. Dietary Inflammatory Index and Cardiometabolic Risk in Ecuadorian Women. Nutrients 2021; 13:nu13082640. [PMID: 34444800 PMCID: PMC8400965 DOI: 10.3390/nu13082640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
Low-grade systemic inflammation is implicated in metabolic syndrome (MetS) and cardiometabolic diseases. Diet is hypothesized to be an important low-grade inflammation modifier. However, few studies have examined the association of dietary inflammation with MetS and cardiometabolic risk in Latin American populations and their findings are inconsistent. Our cross-sectional study examined the association of dietary inflammatory potential with MetS and cardiometabolic risk components in 276 urban Ecuadorian women. Dietary inflammation was evaluated using an energy-adjusted Dietary Inflammatory Index (E-DII), divided into quartiles (Q). E-DII scores ranged from −4.89 (most anti-inflammatory) to 4.45 (most pro-inflammatory). Participants in the most pro-inflammatory (Q4) compared to the least inflammatory E-DII quartile (Q1) had a 4.4 increased adjusted odds for MetS (95% C.I. = 2.0, 9.63; p < 0.001). Every one-unit increase in E-DII was associated with a 1.4 increase in MetS (95% CI = 1.22, 1.52; p < 0.001). In other adjusted models, the most pro-inflammatory E-DII quartile (Q4) was positively associated with total blood cholesterol and triglycerides (p < 0.001), LDL-c (p = 0.007), diastolic blood pressure (p< 0.002), mean arterial pressure (p < 0.006), waist circumference (p < 0.008), and Framingham risk score (p < 0.001). However, the previously identified associations with pulse wave velocity and BMI were no longer evident in the models. These findings suggest that more pro-inflammatory diets may contribute to poorer cardiometabolic health. Promoting healthier diets with a lower inflammatory potential may help to prevent or slow development of cardiometabolic disorders.
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Affiliation(s)
- Yankun Wang
- Department of Environmental & Occupational Health, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA; (Y.W.); (R.X.A.)
- Global Environmental Health Research Laboratory, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA
| | - Rodrigo X. Armijos
- Department of Environmental & Occupational Health, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA; (Y.W.); (R.X.A.)
- Global Environmental Health Research Laboratory, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA
- Center for Latin American & Caribbean Studies, Indiana University-Bloomington, Bloomington, IN 47405, USA
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA;
- Atara Biotherapeutics, Thousand Oaks, CA 91320, USA
| | - Mary Margaret Weigel
- Department of Environmental & Occupational Health, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA; (Y.W.); (R.X.A.)
- Global Environmental Health Research Laboratory, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA
- Center for Latin American & Caribbean Studies, Indiana University-Bloomington, Bloomington, IN 47405, USA
- Correspondence: ; Tel.: +812-856-4930
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