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Adami MA, Bertellotti M, Agüero ML, Frixione MG, D'Amico VL. Assessing the impact of urban landfills as feeding sites on physiological parameters of a generalist seabird species. MARINE POLLUTION BULLETIN 2024; 202:116327. [PMID: 38581734 DOI: 10.1016/j.marpolbul.2024.116327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/06/2024] [Accepted: 03/29/2024] [Indexed: 04/08/2024]
Abstract
The increasing human population and associated urban waste pose a significant threat to wildlife. Our study focused on the Kelp gull (Larus dominicanus), known for opportunistic feeding in anthropogenic areas, particularly urban landfills. We assessed the physiological status of Kelp gulls at a landfill and compared it with gulls from a protected natural site. Results indicate that gulls from the anthropogenic site exhibited lower levels of key physiological parameters linked to diet, including triglycerides, total proteins, uric acid, plasmatic enzyme activity, body condition index, and leukocyte count, in comparison to their counterparts from the natural site. These findings suggest that Kelp gulls experience inferior physical and nutritional conditions when utilizing anthropogenic sites like landfills governmentally managed.
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Affiliation(s)
- Miguel A Adami
- Centro para el Estudio de Sistemas Marinos CESIMAR-CONICET, Bvd. Brown 2915, Puerto Madryn, Chubut, Argentina.
| | - Marcelo Bertellotti
- Centro para el Estudio de Sistemas Marinos CESIMAR-CONICET, Bvd. Brown 2915, Puerto Madryn, Chubut, Argentina; School of Production, Environment, and Sustainable Development, University of Chubut, Argentina
| | - María Laura Agüero
- Centro para el Estudio de Sistemas Marinos CESIMAR-CONICET, Bvd. Brown 2915, Puerto Madryn, Chubut, Argentina
| | - Martin G Frixione
- Centro para el Estudio de Sistemas Marinos CESIMAR-CONICET, Bvd. Brown 2915, Puerto Madryn, Chubut, Argentina
| | - Verónica L D'Amico
- Centro para el Estudio de Sistemas Marinos CESIMAR-CONICET, Bvd. Brown 2915, Puerto Madryn, Chubut, Argentina
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Nos D, Montalvo T, Cortés-Francisco N, Figuerola J, Aymí R, Giménez J, Solé M, Navarro J. Sources of persistent organic pollutants and their physiological effects on opportunistic urban gulls. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133129. [PMID: 38056272 DOI: 10.1016/j.jhazmat.2023.133129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
Urbanization is associated with drastic shifts in biodiversity. While some species thrive in urban areas, the impact of inhabiting these human-altered environments on organism physiology remains understudied. We investigated how exposure to polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) affects the physiology of yellow-legged gulls (Larus michahellis) inhabiting a densely populated, industrialized city. We analyzed blood samples from 50 gulls (20 immatures and 30 adults) and assessed 27 physiological parameters and biomarkers related to xenobiotic protection, health, and feeding habits in these same individuals. We also tracked the movements of 25 gulls (15 immatures and 10 adults) to identify potential sources of persistent organic pollutants (POPs). Both adult and immature gulls primarily inhabited urban areas, followed by marine habitats. Immature gulls spent more time in freshwater, landfills, and agricultural areas. Bioaccumulated ΣPCB (median = 92.7 ng g-1 ww, 1.86-592) and ΣPBDE (median = 1.44 ng g-1 ww, 0.022-9.58) showed no significant differences between age and sex groups. Notably, immature males exhibited the highest correlations with POP concentrations, particularly with the activity of carboxylesterases (CEs), suggesting a higher sensitivity than adults. These findings highlight the potential of plasmatic CEs in immature yellow-legged gulls as effective tracers of POPs exposure and effects, offering insights into the anthropogenic impacts on urban biodiversity.
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Affiliation(s)
- David Nos
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain.
| | - Tomas Montalvo
- Agència de Salut Pública de Barcelona, Pl. Lesseps, 1, 08023 Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Institut d'Investigació Biomèdica Sant Pau - IIB St. Pau, Barcelona, Spain
| | - Núria Cortés-Francisco
- Agència de Salut Pública de Barcelona, Pl. Lesseps, 1, 08023 Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Institut d'Investigació Biomèdica Sant Pau - IIB St. Pau, Barcelona, Spain
| | - Jordi Figuerola
- Estación Biológica de Doñana - CSIC, Avenida Américo Vespucio 26, 41092 Sevilla, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Raül Aymí
- Institut Català d'Ornitologia, Museu de Ciències Naturals de Barcelona, Pl. Leonardo da Vinci, 4-5, 08019, Barcelona, Spain
| | - Joan Giménez
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Montserrat Solé
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Joan Navarro
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
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Liao F, Xia Y, Gu W, Fu X, Yuan B. Comparative analysis of shotgun metagenomics and 16S rDNA sequencing of gut microbiota in migratory seagulls. PeerJ 2023; 11:e16394. [PMID: 37941936 PMCID: PMC10629391 DOI: 10.7717/peerj.16394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/11/2023] [Indexed: 11/10/2023] Open
Abstract
Background Shotgun metagenomic and 16S rDNA sequencing are commonly used methods to identify the taxonomic composition of microbial communities. Previously, we analysed the gut microbiota and intestinal pathogenic bacteria configuration of migratory seagulls by using 16S rDNA sequencing and culture methods. Methods To continue in-depth research on the gut microbiome and reveal the applicability of the two methods, we compared the metagenome and 16S rDNA amplicon results to further demonstrate the features of this animal. Results The number of bacterial species detected by metagenomics gradually increased from the phylum to species level, consistent with 16S rDNA sequencing. Several taxa were commonly shared by both sequencing methods. However, Escherichia, Shigella, Erwinia, Klebsiella, Salmonella, Escherichia albertii, Shigella sonnei, Salmonella enterica, and Shigella flexneri were unique taxa for the metagenome compared with Escherichia-Shigella, Hafnia-Obesumbacterium, Catellicoccus marimammalium, Lactococcus garvieae, and Streptococcus gallolyticus for 16S rDNA sequencing. The largest differences in relative abundance between the two methods were identified at the species level, which identified many pathogenic bacteria to humans using metagenomic sequencing. Pearson correlation analysis indicated that the correlation coefficient for the two methods gradually decreased with the refinement of the taxonomic levels. The high consistency of the correlation coefficient was identified at the genus level for the beta diversity of the two methods. Conclusions In general, relatively consistent patterns and reliability could be identified by both sequencing methods, but the results varied following the refinement of taxonomic levels. Metagenomic sequencing was more suitable for the discovery and detection of pathogenic bacteria of gut microbiota in seagulls. Although there were large differences in the numbers and abundance of bacterial species of the two methods in terms of taxonomic levels, the patterns and reliability results of the samples were consistent.
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Affiliation(s)
- Feng Liao
- Department of Respiratory Medicine, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yilan Xia
- Department of Infectious Diseases and Hepatology, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Wenpeng Gu
- Department of Acute Infectious Diseases Control and Prevention, Yunnan Provincial Centre for Disease Control and Prevention, Kunming, Yunnan, China
| | - Xiaoqing Fu
- Department of Acute Infectious Diseases Control and Prevention, Yunnan Provincial Centre for Disease Control and Prevention, Kunming, Yunnan, China
| | - Bing Yuan
- Department of Respiratory Medicine, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
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Markowski M, Kaliński A, Wawrzyniak J, Glądalski M, Skwarska J, Bańbura J. Microsatellite Instability Assay as a Potential Approach to Evaluate Genotoxicity: Lead Exposure in a Nestling Passerine Bird at the Stage of Intensive Erythropoiesis. Animals (Basel) 2023; 13:ani13081325. [PMID: 37106888 PMCID: PMC10135023 DOI: 10.3390/ani13081325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Although many avian studies have investigated the toxic effects of lead on important biochemical and physiological processes, organ and system function, and behavior, studies evaluating the specific genotoxic effects of exposure to lead are scarce. Nowadays, rapid technological advances can provide new molecular techniques in this regard. In this study, as a novel approach in bird studies, we used a panel of ten microsatellite loci to investigate the microsatellite instability (MSI) in response to experimental lead intoxication in a common hole-nesting species, the great tit Parus major. For this purpose, an experiment based on an intentional single supplementation of a lead (II) acetate trihydrate compound was conducted, with the use of two different doses, applied to randomly chosen great tit nestlings from randomly selected broods, being at the stage of intensive erythropoiesis. Although this preliminary study did not find any MSI in the seven microsatellite markers retained for the final comparison, it contributes to the examination of this molecular technique in field conditions as being potentially applicable in ecotoxicological bird studies. We believe that certain issues should be considered in finding an explanation for our result. First, the single doses of lead used in this study may have been too weak to induce genetic instability. Second, the panel of microsatellite markers studied may have been unsusceptible to lead genotoxicity in general. Third, the relatively short time interval (5 days) between the experimental procedure (lead exposure) and the sampling of post-exposure material (blood) for genetic analyses could have limited the effect of lead genotoxicity. Further analyzes are needed to verify these findings and to evaluate the scope of application of the MSI analysis in wild bird population studies.
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Affiliation(s)
- Marcin Markowski
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Adam Kaliński
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Jarosław Wawrzyniak
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Michał Glądalski
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Joanna Skwarska
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Jerzy Bańbura
- Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
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