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Vaughn SN, Atkinson CL, Johnson PD, Jackson CR. Characterizing the Gut Microbial Communities of Native and Invasive Freshwater Bivalves after Long-Term Sample Preservation. Microorganisms 2023; 11:2489. [PMID: 37894147 PMCID: PMC10609060 DOI: 10.3390/microorganisms11102489] [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: 09/18/2023] [Revised: 10/02/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
Freshwater mussels are important indicators of the overall health of their environment but have suffered declines that have been attributed to factors such as habitat degradation, a loss of fish hosts, climate change, and excessive nutrient inputs. The loss of mussel biodiversity can negatively impact freshwater ecosystems such that understanding the mussel's gut microbiome has been identified as a priority topic for developing conservation strategies. In this study, we determine whether ethanol-stored specimens of freshwater mussels can yield representative information about their gut microbiomes such that changes in the microbiome through time could potentially be determined from museum mussel collections. A short-term preservation experiment using the invasive clam Corbicula fluminea was used to validate the use of ethanol as a method for storing the bivalve microbiome, and the gut microbiomes of nine native mussel species that had been preserved in ethanol for between 2 and 9 years were assessed. We show that ethanol preservation is a valid storage method for bivalve specimens in terms of maintaining an effective sequencing depth and the richness of their gut bacterial assemblages and provide further insight into the gut microbiomes of the invasive clam C. fluminea and nine species of native mussels. From this, we identify a "core" genus of bacteria (Romboutsia) that is potentially common to all freshwater bivalve species studied. These findings support the potential use of ethanol-preserved museum specimens to examine patterns in the gut microbiomes of freshwater mussels over long periods.
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Affiliation(s)
- Stephanie N. Vaughn
- Department of Biology, University of Mississippi, University, MS 38677, USA;
| | - Carla L. Atkinson
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA;
| | - Paul D. Johnson
- Alabama Department of Conservation and Natural Resources, Alabama Aquatic Biodiversity Center, Marion, AL 36756, USA;
| | - Colin R. Jackson
- Department of Biology, University of Mississippi, University, MS 38677, USA;
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2
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Pan Y, García-Girón J, Iversen LL. Global change and plant-ecosystem functioning in freshwaters. TRENDS IN PLANT SCIENCE 2023; 28:646-660. [PMID: 36628654 DOI: 10.1016/j.tplants.2022.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 05/13/2023]
Abstract
Freshwater ecosystems are of worldwide importance for maintaining biodiversity and sustaining the provision of a myriad of ecosystem services to modern societies. Plants, one of the most important components of these ecosystems, are key to water nutrient removal, carbon storage, and food provision. Understanding how the functional connection between freshwater plants and ecosystems is affected by global change will be key to our ability to predict future changes in freshwater systems. Here, we synthesize global plant responses, adaptations, and feedbacks to present-day and future freshwater environments through trait-based approaches, from single individuals to entire communities. We outline the transdisciplinary knowledge benchmarks needed to further understand freshwater plant biodiversity and the fundamental services they provide.
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Affiliation(s)
- Yingji Pan
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 130102 Changchun, China; Institute of Environmental Sciences (CML), Leiden University, Einsteinweg 2, 2333 CC Leiden, The Netherlands.
| | - Jorge García-Girón
- Geography Research Unit, University of Oulu, PO Box 3000, FI-90014 Oulu, Finland; Department of Biodiversity and Environmental Management, University of León, Campus de Vegazana, 24007 León, Spain
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3
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Oficialdegui FJ, Zamora-Marín JM, Guareschi S, Anastácio PM, García-Murillo P, Ribeiro F, Miranda R, Cobo F, Gallardo B, García-Berthou E, Boix D, Arias A, Cuesta JA, Medina L, Almeida D, Banha F, Barca S, Biurrun I, Cabezas MP, Calero S, Campos JA, Capdevila-Argüelles L, Capinha C, Casals F, Clavero M, Encarnação J, Fernández-Delgado C, Franco J, Guillén A, Hermoso V, Machordom A, Martelo J, Mellado-Díaz A, Morcillo F, Oscoz J, Perdices A, Pou-Rovira Q, Rodríguez-Merino A, Ros M, Ruiz-Navarro A, Sánchez MI, Sánchez-Fernández D, Sánchez-González JR, Sánchez-Gullón E, Teodósio MA, Torralva M, Vieira-Lanero R, Oliva-Paterna FJ. A horizon scan exercise for aquatic invasive alien species in Iberian inland waters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161798. [PMID: 36702272 DOI: 10.1016/j.scitotenv.2023.161798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
As the number of introduced species keeps increasing unabatedly, identifying and prioritising current and potential Invasive Alien Species (IAS) has become essential to manage them. Horizon Scanning (HS), defined as an exploration of potential threats, is considered a fundamental component of IAS management. By combining scientific knowledge on taxa with expert opinion, we identified the most relevant aquatic IAS in the Iberian Peninsula, i.e., those with the greatest geographic extent (or probability of introduction), severe ecological, economic and human health impacts, greatest difficulty and acceptability of management. We highlighted the 126 most relevant IAS already present in Iberian inland waters (i.e., Concern list) and 89 with a high probability of being introduced in the near future (i.e., Alert list), of which 24 and 10 IAS, respectively, were considered as a management priority after receiving the highest scores in the expert assessment (i.e., top-ranked IAS). In both lists, aquatic IAS belonging to the four thematic groups (plants, freshwater invertebrates, estuarine invertebrates, and vertebrates) were identified as having been introduced through various pathways from different regions of the world and classified according to their main functional feeding groups. Also, the latest update of the list of IAS of Union concern pursuant to Regulation (EU) No 1143/2014 includes only 12 top-ranked IAS identified for the Iberian Peninsula, while the national lists incorporate the vast majority of them. This fact underlines the great importance of taxa prioritisation exercises at biogeographical scales as a step prior to risk analyses and their inclusion in national lists. This HS provides a robust assessment and a cost-effective strategy for decision-makers and stakeholders to prioritise the use of limited resources for IAS prevention and management. Although applied at a transnational level in a European biodiversity hotspot, this approach is designed for potential application at any geographical or administrative scale, including the continental one.
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Affiliation(s)
- Francisco J Oficialdegui
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain.
| | - José M Zamora-Marín
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Simone Guareschi
- Geography and Environment Division, Loughborough University, Loughborough, United Kingdom; Departamento de Biología de la Conservación, Estación Biológica de Doñana (EBD)-CSIC, Sevilla, Spain
| | - Pedro M Anastácio
- Departamento de Paisagem, Ambiente e Ordenamento, MARE-Centro de Ciências do Mar e do Ambiente, Escola de Ciências e Tecnologia, Universidade de Évora, Évora, Portugal
| | - Pablo García-Murillo
- Departamento de Biología Vegetal y Ecología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Filipe Ribeiro
- MARE-Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Rafael Miranda
- Instituto de Biodiversidad y Medioambiente (BIOMA), Universidad de Navarra, Pamplona, Spain
| | - Fernando Cobo
- Departamento de Zooloxía, Xenética e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, A Coruña, Spain
| | - Belinda Gallardo
- Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología (IPE)-CSIC, Zaragoza, Spain
| | | | - Dani Boix
- GRECO, Institut d'Ecologia Aquàtica, Universitat de Girona, Girona, Spain
| | - Andrés Arias
- Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, Asturias, Spain
| | - Jose A Cuesta
- Departamento de Ecología y Gestión Costera, Instituto de Ciencias Marinas de Andalucía (ICMAN)-CSIC, Cádiz, Spain
| | | | - David Almeida
- Department of Basic Medical Sciences, School of Medicine, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, Spain
| | - Filipe Banha
- Departamento de Paisagem, Ambiente e Ordenamento, MARE-Centro de Ciências do Mar e do Ambiente, Escola de Ciências e Tecnologia, Universidade de Évora, Évora, Portugal
| | - Sandra Barca
- Departamento de Zooloxía, Xenética e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, A Coruña, Spain
| | - Idoia Biurrun
- Departamento de Biología Vegetal y Ecología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Bilbao, Spain
| | - M Pilar Cabezas
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Sara Calero
- Planificación y Gestión Hídrica, Tragsatec, Grupo Tragsa-SEPI, Madrid, Spain
| | - Juan A Campos
- Departamento de Biología Vegetal y Ecología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Bilbao, Spain
| | | | - César Capinha
- Centre of Geographical Studies, Institute of Geography and Spatial Planning, University of Lisbon, Lisboa, Portugal
| | - Frederic Casals
- Departament de Ciència Animal, Universitat de Lleida, Lleida, Spain; Centre Tecnològic Forestal de Catalunya (CTFC), Solsona, Lleida, Spain
| | - Miguel Clavero
- Departamento de Biología de la Conservación, Estación Biológica de Doñana (EBD)-CSIC, Sevilla, Spain
| | - João Encarnação
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | | | - Javier Franco
- AZTI, Marine Research, Marine and Coastal Environmental Management, Pasaia, Gipuzkoa, Spain
| | - Antonio Guillén
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Virgilio Hermoso
- Departamento de Biología Vegetal y Ecología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Annie Machordom
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN)-CSIC, Madrid, Spain
| | - Joana Martelo
- MARE-Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Andrés Mellado-Díaz
- Planificación y Gestión Hídrica, Tragsatec, Grupo Tragsa-SEPI, Madrid, Spain
| | - Felipe Morcillo
- Departamento de Biodiversidad, Ecología y Evolución, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Oscoz
- Departamento de Biología Ambiental, Universidad de Navarra, Pamplona, Spain
| | - Anabel Perdices
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN)-CSIC, Madrid, Spain
| | | | | | - Macarena Ros
- Departamento de Zoología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - Ana Ruiz-Navarro
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain; Departamento de Didáctica de las Ciencias Experimentales, Facultad de Educación, Universidad de Murcia, Murcia, Spain
| | - Marta I Sánchez
- Departamento de Ecología de Humedales, Estación Biológica de Doñana (EBD)-CSIC, Sevilla, Spain
| | | | - Jorge R Sánchez-González
- Departament de Ciència Animal, Universitat de Lleida, Lleida, Spain; Sociedad Ibérica de Ictiología, Departamento de Biología Ambiental, Universidad de Navarra, Pamplona/Iruña, Spain
| | - Enrique Sánchez-Gullón
- Consejería de Sostenibilidad, Medio Ambiente y Economía Azul, Junta de Andalucía, Huelva, Spain
| | - M Alexandra Teodósio
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Mar Torralva
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Rufino Vieira-Lanero
- Departamento de Zooloxía, Xenética e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, A Coruña, Spain
| | - Francisco J Oliva-Paterna
- Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, CEIR Campus Mare Nostrum (CMN), Murcia, Spain
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4
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Aldridge DC, Ollard IS, Bespalaya YV, Bolotov IN, Douda K, Geist J, Haag WR, Klunzinger MW, Lopes‐Lima M, Mlambo MC, Riccardi N, Sousa R, Strayer DL, Torres SH, Vaughn CC, Zając T, Zieritz A. Freshwater mussel conservation: A global horizon scan of emerging threats and opportunities. GLOBAL CHANGE BIOLOGY 2023; 29:575-589. [PMID: 36444494 PMCID: PMC10100069 DOI: 10.1111/gcb.16510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/27/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
We identified 14 emerging and poorly understood threats and opportunities for addressing the global conservation of freshwater mussels over the next decade. A panel of 17 researchers and stakeholders from six continents submitted a total of 56 topics that were ranked and prioritized using a consensus-building Delphi technique. Our 14 priority topics fell into five broad themes (autecology, population dynamics, global stressors, global diversity, and ecosystem services) and included understanding diets throughout mussel life history; identifying the drivers of population declines; defining metrics for quantifying mussel health; assessing the role of predators, parasites, and disease; informed guidance on the risks and opportunities for captive breeding and translocations; the loss of mussel-fish co-evolutionary relationships; assessing the effects of increasing surface water changes; understanding the effects of sand and aggregate mining; understanding the effects of drug pollution and other emerging contaminants such as nanomaterials; appreciating the threats and opportunities arising from river restoration; conserving understudied hotspots by building local capacity through the principles of decolonization; identifying appropriate taxonomic units for conservation; improved quantification of the ecosystem services provided by mussels; and understanding how many mussels are enough to provide these services. Solutions for addressing the topics ranged from ecological studies to technological advances and socio-political engagement. Prioritization of our topics can help to drive a proactive approach to the conservation of this declining group which provides a multitude of important ecosystem services.
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Affiliation(s)
- David C. Aldridge
- Aquatic Ecology Group, Department of ZoologyUniversity of CambridgeCambridgeUK
| | - Isobel S. Ollard
- Aquatic Ecology Group, Department of ZoologyUniversity of CambridgeCambridgeUK
| | - Yulia V. Bespalaya
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Ivan N. Bolotov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
- Northern Arctic Federal UniversityArkhangelskRussia
| | - Karel Douda
- Department of Zoology and FisheriesCzech University of Life Sciences PraguePragueCzech Republic
| | - Juergen Geist
- Aquatic Systems Biology UnitTechnical University of MunichFreisingGermany
| | - Wendell R. Haag
- Southern Research Station, Center for Bottomland Hardwoods ResearchU.S. Forest ServiceFrankfortKentuckyUSA
| | - Michael W. Klunzinger
- Australian Rivers InstituteGriffith UniversityNathanQueenslandAustralia
- Department of Aquatic ZoologyWestern Australian MuseumWelshpoolWestern AustralianAustralia
| | - Manuel Lopes‐Lima
- CIBIO/InBIO/BIOPOLIS—Research Center in Biodiversity and Genetic ResourcesUniversity of PortoVairãoPortugal
| | - Musa C. Mlambo
- Department of Freshwater InvertebratesAlbany MuseumMakhandaSouth Africa
- Department of Zoology and EntomologyRhodes UniversityMakhandaSouth Africa
| | | | - Ronaldo Sousa
- CBMA—Centre of Molecular and Environmental Biology, Department of BiologyUniversity of MinhoBragaPortugal
| | - David L. Strayer
- Cary Institute of Ecosystem StudiesMillbrookNew YorkUSA
- Graham Sustainability InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Santiago H. Torres
- Centro de Investigaciones y Transferencia Santa Cruz (CONICET, UNPA, UTN), Unidad Académica San JuliánUniversidad Nacional de la Patagonia AustralSanta CruzArgentina
| | - Caryn C. Vaughn
- Oklahoma Biological Survey and Department of BiologyUniversity of OklahomaNormanOklahomaUSA
| | - Tadeusz Zając
- Institute of Nature ConservationPolish Academy of SciencesKrakówPoland
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5
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Feio MJ, Hughes RM, Serra SRQ, Nichols SJ, Kefford BJ, Lintermans M, Robinson W, Odume ON, Callisto M, Macedo DR, Harding JS, Yates AG, Monk W, Nakamura K, Mori T, Sueyoshi M, Mercado‐Silva N, Chen K, Baek MJ, Bae YJ, Tachamo‐Shah RD, Shah DN, Campbell I, Moya N, Arimoro FO, Keke UN, Martins RT, Alves CBM, Pompeu PS, Sharma S. Fish and macroinvertebrate assemblages reveal extensive degradation of the world's rivers. GLOBAL CHANGE BIOLOGY 2023; 29:355-374. [PMID: 36131677 PMCID: PMC10091732 DOI: 10.1111/gcb.16439] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 08/06/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Rivers suffer from multiple stressors acting simultaneously on their biota, but the consequences are poorly quantified at the global scale. We evaluated the biological condition of rivers globally, including the largest proportion of countries from the Global South published to date. We gathered macroinvertebrate- and fish-based assessments from 72,275 and 37,676 sites, respectively, from 64 study regions across six continents and 45 nations. Because assessments were based on differing methods, different systems were consolidated into a 3-class system: Good, Impaired, or Severely Impaired, following common guidelines. The proportion of sites in each class by study area was calculated and each region was assigned a Köppen-Geiger climate type, Human Footprint score (addressing landscape alterations), Human Development Index (HDI) score (addressing social welfare), % rivers with good ambient water quality, % protected freshwater key biodiversity areas; and % of forest area net change rate. We found that 50% of macroinvertebrate sites and 42% of fish sites were in Good condition, whereas 21% and 29% were Severely Impaired, respectively. The poorest biological conditions occurred in Arid and Equatorial climates and the best conditions occurred in Snow climates. Severely Impaired conditions were associated (Pearson correlation coefficient) with higher HDI scores, poorer physico-chemical water quality, and lower proportions of protected freshwater areas. Good biological conditions were associated with good water quality and increased forested areas. It is essential to implement statutory bioassessment programs in Asian, African, and South American countries, and continue them in Oceania, Europe, and North America. There is a need to invest in assessments based on fish, as there is less information globally and fish were strong indicators of degradation. Our study highlights a need to increase the extent and number of protected river catchments, preserve and restore natural forested areas in the catchments, treat wastewater discharges, and improve river connectivity.
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Affiliation(s)
- Maria João Feio
- Department of Life Sciences, Marine and Environmental Sciences CentreARNET, University of CoimbraCoimbraPortugal
| | - Robert M. Hughes
- Amnis Opes InstituteCorvallisOregonUSA
- Department of Fisheries, Wildlife, and Conservation SciencesOregon State UniversityCorvallisOregonUSA
| | - Sónia R. Q. Serra
- Department of Life Sciences, Marine and Environmental Sciences CentreARNET, University of CoimbraCoimbraPortugal
| | - Susan J. Nichols
- Centre for Applied Water ScienceInstitute for Applied Ecology, University of CanberraCanberraAustralia
| | - Ben J. Kefford
- Centre for Applied Water ScienceInstitute for Applied Ecology, University of CanberraCanberraAustralia
| | - Mark Lintermans
- Centre for Applied Water ScienceInstitute for Applied Ecology, University of CanberraCanberraAustralia
| | | | - Oghenekaro N. Odume
- Unilever Centre for Environmental Water QualityInstitute for Water Research, Rhodes UniversityMakhandaSouth Africa
| | - Marcos Callisto
- Departamento de Genética, Ecologia e EvoluçãoInstituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Diego R. Macedo
- Departamento de GeografiaUniversidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Jon S. Harding
- School of Biological SciencesUniversity of CanterburyChristchurchNew Zealand
| | - Adam G. Yates
- Department of BiologyUniversity of WaterlooWaterlooOntarioCanada
| | - Wendy Monk
- Environment and Climate Change Canada and Canadian Rivers Institute, Faculty of Forestry and Environmental ManagementUniversity of New BrunswickFrederictonCanada
| | | | - Terutaka Mori
- Aqua Restoration Research CenterPublic Works Research InstituteKakamigaharaGifuJapan
| | - Masanao Sueyoshi
- Aqua Restoration Research CenterPublic Works Research InstituteKakamigaharaGifuJapan
| | - Norman Mercado‐Silva
- Centro de Investigación en Biodiversidad y ConservaciónUniversidad Autónoma del Estado de MorelosCuernavacaMorelosMexico
| | - Kai Chen
- Department of EntomologyNanjing Agricultural UniversityNanjingPeople's Republic of China
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouPeople's Republic of China
| | - Min Jeong Baek
- National Institute of Biological Resources, Ministry of EnvironmentIncheonRepublic of Korea
| | - Yeon Jae Bae
- Division of Environmental Science and Ecological Engineering, College of Life SciencesKorea UniversitySeoulRepublic of Korea
| | - Ram Devi Tachamo‐Shah
- Department of Life Sciences, School of Science, Aquatic Ecology CentreKathmandu UniversityDhulikhelNepal
| | - Deep Narayan Shah
- Central Department of Environmental ScienceTribhuvan UniversityKathmanduNepal
| | | | - Nabor Moya
- Instituto Experimental de BiologiaUniversidad Mayor Real y Pontificia de San Francisco Xavier de ChuquisacaSucreBolivia
| | - Francis O. Arimoro
- Applied Hydrobiology Unit, Department of Animal BiologyFederal University of TechnologyMinnaNigeria
| | - Unique N. Keke
- Applied Hydrobiology Unit, Department of Animal BiologyFederal University of TechnologyMinnaNigeria
| | - Renato T. Martins
- Coordenação de Biodiversidade, Curso de pós‐graduação em EntomologiaInstituto Nacional de Pesquisas da AmazôniaManausBrazil
| | - Carlos B. M. Alves
- Laboratório Nuvelhas, Projeto ManuelzãoUniversidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Paulo S. Pompeu
- Departamento de Ecologia e ConservaçãoUniversidade Federal de LavrasLavrasBrazil
| | - Subodh Sharma
- Aquatic Ecology Centre, School of ScienceKathmandu UniversityDhulikhelNepal
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6
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Zieritz A, Sousa R, Aldridge DC, Douda K, Esteves E, Ferreira‐Rodríguez N, Mageroy JH, Nizzoli D, Osterling M, Reis J, Riccardi N, Daill D, Gumpinger C, Vaz AS. A global synthesis of ecosystem services provided and disrupted by freshwater bivalve molluscs. Biol Rev Camb Philos Soc 2022; 97:1967-1998. [PMID: 35770724 PMCID: PMC9545824 DOI: 10.1111/brv.12878] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
Identification of ecosystem services, i.e. the contributions that ecosystems make to human well-being, has proven instrumental in galvanising public and political support for safeguarding biodiversity and its benefits to people. Here we synthesise the global evidence on ecosystem services provided and disrupted by freshwater bivalves, a heterogenous group of >1200 species, including some of the most threatened (in Unionida) and invasive (e.g. Dreissena polymorpha) taxa globally. Our systematic literature review resulted in a data set of 904 records from 69 countries relating to 24 classes of provisioning (N = 189), cultural (N = 491) and regulating (N = 224) services following the Common International Classification of Ecosystem Services (CICES). Prominent ecosystem services included (i) the provisioning of food, materials and medicinal products, (ii) knowledge acquisition (e.g. on water quality, past environments and historical societies), ornamental and other cultural contributions, and (iii) the filtration, sequestration, storage and/or transformation of biological and physico-chemical water properties. About 9% of records provided evidence for the disruption rather than provision of ecosystem services. Synergies and trade-offs of ecosystem services were observed. For instance, water filtration by freshwater bivalves can be beneficial for the cultural service 'biomonitoring', while negatively or positively affecting food consumption or human recreation. Our evidence base spanned a total of 91 genera and 191 species, dominated by Unionida (55% of records, 76% of species), Veneroida (21 and 9%, respectively; mainly Corbicula spp.) and Myoida (20 and 4%, respectively; mainly Dreissena spp.). About one third of records, predominantly from Europe and the Americas, related to species that were non-native to the country of study. The majority of records originated from Asia (35%), with available evidence for 23 CICES classes, as well as Europe (29%) and North America (23%), where research was largely focused on 'biomonitoring'. Whilst the earliest record (from 1949) originated from North America, since 2000, annual output of records has increased rapidly in Asia and Europe. Future research should focus on filling gaps in knowledge in lesser-studied regions, including Africa and South America, and should look to provide a quantitative valuation of the socio-economic costs and benefits of ecosystem services shaped by freshwater bivalves.
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Affiliation(s)
- Alexandra Zieritz
- School of GeographyUniversity of NottinghamUniversity Park, Sir Clive Granger BuildingNG7 2RDNottinghamUK
| | - Ronaldo Sousa
- CBMA – Centre of Molecular and Environmental Biology, Department of BiologyUniversity of MinhoCampus Gualtar4710‐057BragaPortugal
| | - David C. Aldridge
- Department of ZoologyUniversity of CambridgeDowning StreetCambridgeCB2 3EJUK
| | - Karel Douda
- Department of Zoology and FisheriesCzech University of Life Sciences PragueKamýcká129PragueCzech Republic
| | - Eduardo Esteves
- Departamento de Engenharia Alimentar, Instituto Superior de Engenharia and CCMAR Centre of Marine SciencesUniversidade do AlgarveEstr. da Penha8005‐139FaroPortugal
| | - Noé Ferreira‐Rodríguez
- Departamento de Ecoloxía e Bioloxía Animal, Facultade de BioloxíaUniversidade de VigoCampus As Lagoas – Marcosende36310VigoSpain
| | - Jon H. Mageroy
- Norwegian Institute of Nature Research, OsloSognsveien 680855OsloNorway
| | - Daniele Nizzoli
- Department of Chemistry, Life Sciences and Environmental SustainabilityUniversity of ParmaViale delle Scienze, 11/A43124ParmaItaly
| | - Martin Osterling
- Department of Environmental and Life Sciences – BiologyKarlstad UniversityUniversitetsgatan 2651 88KarlstadSweden
| | - Joaquim Reis
- Faculdade de Ciências da Universidade de LisboaMARE – Marine and Environmental Sciences CentreCampo Grande1749‐016LisbonPortugal
| | - Nicoletta Riccardi
- CNR‐IRSA Water Research InstituteCorso Tonolli, 5028922Verbania Pallanza (VB)Italy
| | - Daniel Daill
- blattfisch e.U. – Consultants in Aquatic Ecology and EngineeringGabelsbergerstraße 74600WelsAustria
| | - Clemens Gumpinger
- blattfisch e.U. – Consultants in Aquatic Ecology and EngineeringGabelsbergerstraße 74600WelsAustria
| | - Ana Sofia Vaz
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de VairãoUniversidade do Porto4485‐661VairãoPortugal
- Departamento de Biologia, Faculdade de CiênciasUniversidade do Porto4099‐002PortoPortugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão4485‐661VairãoPortugal
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7
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Lin H, Dai C, Yu H, Tu J, Yu J, He J, Jiang H. Historical connectivity and environmental filtering jointly determine the freshwater fish assemblages on Taiwan and Hainan Islands of China. Curr Zool 2022; 69:12-20. [PMID: 36974143 PMCID: PMC10039183 DOI: 10.1093/cz/zoac015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
The biotas of Taiwan and Hainan Islands are of continental origin, but the manner with which historical and ecological factors shaped these insular species is still unclear. Here, we used freshwater fish as a model to fill this gap by quantifying the phylogenetic structure of the insular faunas and disentangling the relative contribution of potential drivers. Firstly, we used clustering and ordination analyses to identify regional species pools. To test whether the insular freshwater fish faunas were phylogenetically clustered or overdispersed, we calculated the net relatedness index (NRI) and the nearest taxon index (NTI). Finally, we implemented logistic regressions to disentangle the relative importance of species attributes (i.e. maximum body length, climatic niche dissimilarity, and diversification) and historical connectivity in explaining the insular faunas. Our results showed that the most possible species pools of Taiwan are Zhejiang and Fujian provinces, and those of Hainan are Guangdong and Guangxi provinces. These insular faunas showed random phylogenetic structures in terms of NRI values. According to the NTI values, however, the Taiwanese fauna displayed more phylogenetic clustering, while the Hainanese one was more overdispersed. Both the standard and phylogenetic logistic regressions identified historical connectivity and climatic niche dissimilarity as the two top explanatory variables for species assemblages on these islands. Our reconstruction of the paleo-connected drainage basins provides insight into how historical processes and ecological factors interact to shape the freshwater fish fauna of the East Asian islands.
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Affiliation(s)
- Haoxian Lin
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Chao Dai
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Hongyin Yu
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Jiahao Tu
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Jiehua Yu
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Jiekun He
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Haisheng Jiang
- Spatial Ecology Laboraty, School of Life Sciences, South China Normal University, Guangzhou 510631, China
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8
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Moore EM, Alexander ME, Sloman KA, Pereira MG, Thacker SA, Orton F. Laboratory-Based Comparison for the Effects of Environmental Stressors Supports Field Evidence for the Relative Importance of Pollution on Life History and Behavior of the Pond Snail, Lymnaea stagnalis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:8806-8816. [PMID: 34167293 DOI: 10.1021/acs.est.1c01640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biodiversity is declining at an alarming rate globally, with freshwater ecosystems particularly threatened. Field-based correlational studies have "ranked" stressors according to their relative effects on freshwater biota, however, supporting cause-effect data from laboratory exposures are lacking. Here, we designed exposures to elicit chronic effects over equivalent exposure ranges for three ubiquitous stressors (temperature: 22-28 °C; pollution [14 component mixture]: 0.05-50 μg/L; invasive predator cue [signal crayfish, Pacifasticus leniusculus]: 25-100% cue) and investigated effects on physiological end points in the pond snail (Lymnaeastagnalis). All stressors reduced posthatch survival at their highest exposure levels, however, highly divergent effects were observed at lower test levels. Temperature stimulated hatching, growth, and reproduction, whereas pollution delayed hatching, decreased growth, reduced egg number/embryo viability, and induced avoidance behavior. The invasive predator cue stimulated growth and reduced embryo viability. In agreement with field-based ranking of stressors, pollution was identified as having the most severe effects in our test system. We demonstrate here the utility of laboratory studies to effectively determine hierarchy of stressors according to their likelihood of causing harm in the field, which has importance for conservation. Finally, we report negative impacts on life-history traits central to population stability (survival/reproduction) at the lowest pollution level tested (0.05 μg/L).
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Affiliation(s)
- Emily M Moore
- School of Health and Life Sciences, University of the West of Scotland, Paisley, PA1 2BE Scotland
| | - Mhairi E Alexander
- School of Health and Life Sciences, University of the West of Scotland, Paisley, PA1 2BE Scotland
| | - Katherine A Sloman
- School of Health and Life Sciences, University of the West of Scotland, Paisley, PA1 2BE Scotland
| | - M Glória Pereira
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Bailrigg, Lancaster LA1 4AP, United Kingdom
| | - Sarah A Thacker
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Bailrigg, Lancaster LA1 4AP, United Kingdom
| | - Frances Orton
- School of Health and Life Sciences, University of the West of Scotland, Paisley, PA1 2BE Scotland
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9
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Almeida TC, Tessarolo G, Nabout JC, Teresa FB. Non‐stationary drivers on fish sampling efforts in Brazilian freshwaters. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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10
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Zieritz A, Froufe E, Bolotov I, Gonçalves DV, Aldridge DC, Bogan AE, Gan HM, Gomes-Dos-Santos A, Sousa R, Teixeira A, Varandas S, Zanatta D, Lopes-Lima M. Mitogenomic phylogeny and fossil-calibrated mutation rates for all F- and M-type mtDNA genes of the largest freshwater mussel family, the Unionidae (Bivalvia). Zool J Linn Soc 2020. [DOI: 10.1093/zoolinnean/zlaa153] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractThe Unionidae represent an excellent model taxon for unravelling the drivers of freshwater diversity, but, phylogeographic studies on Southeast Asian taxa are hampered by lack of a comprehensive phylogeny and mutation rates for this fauna. We present complete female- (F) and male-type (M) mitogenomes of four genera of the Southeast Asian clade Contradentini+Rectidentini. We calculate substitution rates for the mitogenome, the 13 protein-coding genes, the two ribosomal units and three commonly used fragments (co1, nd1 and 16S) of both F- and M-mtDNA, based on a fossil-calibrated, mitogenomic phylogeny of the Unionidae. Phylogenetic analyses, including an M+F concatenated dataset, consistently recovers a monophyletic Gonideinae. Subfamily-level topology is congruent with that of a previous nuclear genomic study and with patterns in mitochondrial gene order, suggesting Unionidae F-type 2 as a synapomorphy of the Gonideinae. Our phylogeny indicates that the clades Contradentini+Rectidentini and Lamprotulini+Pseudodontini+Gonideini split in the early Cretaceous (~125 Mya), and that the crown group of Contradentini+Rectidentini originated in the late Cretaceous (~79 Mya). Most gonideine tribes originated during the early Palaeogene. Substitution rates were comparable to those previously published for F-type co1 and 16S for certain Unionidae and Margaritiferidae species (pairs).
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Affiliation(s)
- Alexandra Zieritz
- School of Geography, Sir Clive Granger Building, University of Nottingham, University Park, Nottingham, UK
| | - Elsa Froufe
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, Matosinhos, Portugal
| | - Ivan Bolotov
- Federal Center for Integrated Arctic Research, Russian Academy of Sciences, Severnaya Dvina Emb. 23, Arkhangelsk, Russian Federation
- Northern Arctic Federal University, Northern Dvina Emb. 17, Arkhangelsk, Russian Federation
- Saint-Petersburg State University, Universitetskaya Emb. 7/9, Saint Petersburg, Russian Federation
| | - Duarte V Gonçalves
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, Matosinhos, Portugal
| | - David C Aldridge
- Aquatic Ecology Group, The David Attenborough Building, Department of Zoology, University of Cambridge, Cambridge, UK
| | - Arthur E Bogan
- Research Laboratory, North Carolina State Museum of Natural Sciences, Raleigh, NC, USA
| | - Han Ming Gan
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong,, VIC, Australia
| | - André Gomes-Dos-Santos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, Matosinhos, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - Ronaldo Sousa
- CBMA - Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campos de Gualtar, Braga, Portugal
| | - Amilcar Teixeira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Simone Varandas
- CITAB-UTAD – Centre for Research and Technology of Agro-Environment and Biological Sciences, University of Trás-os-Montes and Alto Douro, Apartado 1013, Vila Real, Portugal
| | - David Zanatta
- Biology Department, Institute for Great Lakes Research, Central Michigan University, Biosciences, Mount Pleasant, MI, USA
| | - Manuel Lopes-Lima
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, Matosinhos, Portugal
- CIBIO/InBIO - Research Center in Biodiversity and Genetic Resources, Universidade do Porto, Campus Agrário de Vairão, Rua Padre Armando Quintas, Vairão, Portugal
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11
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Dickey JWE, Cuthbert RN, South J, Britton JR, Caffrey J, Chang X, Crane K, Coughlan NE, Fadaei E, Farnsworth KD, Ismar-Rebitz SMH, Joyce PWS, Julius M, Laverty C, Lucy FE, MacIsaac HJ, McCard M, McGlade CLO, Reid N, Ricciardi A, Wasserman RJ, Weyl OLF, Dick JTA. On the RIP: using Relative Impact Potential to assess the ecological impacts of invasive alien species. NEOBIOTA 2020. [DOI: 10.3897/neobiota.55.49547] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Invasive alien species continue to arrive in new locations with no abatement in rate, and thus greater predictive powers surrounding their ecological impacts are required. In particular, we need improved means of quantifying the ecological impacts of new invasive species under different contexts. Here, we develop a suite of metrics based upon the novel Relative Impact Potential (RIP) metric, combining the functional response (consumer per capita effect), with proxies for the numerical response (consumer population response), providing quantification of invasive species ecological impact. These metrics are comparative in relation to the eco-evolutionary baseline of trophically analogous natives, as well as other invasive species and across multiple populations. Crucially, the metrics also reveal how impacts of invasive species change under abiotic and biotic contexts. While studies focused solely on functional responses have been successful in predictive invasion ecology, RIP retains these advantages while adding vital other predictive elements, principally consumer abundance. RIP can also be combined with propagule pressure to quantify overall invasion risk. By highlighting functional response and numerical response proxies, we outline a user-friendly method for assessing the impacts of invaders of all trophic levels and taxonomic groups. We apply the metric to impact assessment in the face of climate change by taking account of both changing predator consumption rates and prey reproduction rates. We proceed to outline the application of RIP to assess biotic resistance against incoming invasive species, the effect of evolution on invasive species impacts, application to interspecific competition, changing spatio-temporal patterns of invasion, and how RIP can inform biological control. We propose that RIP provides scientists and practitioners with a user-friendly, customisable and, crucially, powerful technique to inform invasive species policy and management.
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12
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Darrigran G, Agudo-Padrón I, Baez P, Belz C, Cardoso F, Carranza A, Collado G, Correoso M, Cuezzo MG, Fabres A, Gutiérrez Gregoric DE, Letelier S, Ludwig S, Mansur MC, Pastorino G, Penchaszadeh P, Peralta C, Rebolledo A, Rumi A, Santos S, Thiengo S, Vidigal T, Damborenea C. Non-native mollusks throughout South America: emergent patterns in an understudied continent. Biol Invasions 2020. [DOI: 10.1007/s10530-019-02178-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Kadandale S, Marten R, Smith R. The palm oil industry and noncommunicable diseases. Bull World Health Organ 2019; 97:118-128. [PMID: 30728618 PMCID: PMC6357563 DOI: 10.2471/blt.18.220434] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 11/04/2018] [Accepted: 11/05/2018] [Indexed: 11/27/2022] Open
Abstract
Large-scale industries do not operate in isolation, but have tangible impacts on human and planetary health. An often overlooked actor in the fight against noncommunicable diseases is the palm oil industry. The dominance of palm oil in the food processing industry makes it the world's most widely produced vegetable oil. We applied the commercial determinants of health framework to analyse the palm oil industry. We highlight the industry's mutually profitable relationship with the processed food industry and its impact on human and planetary health, including detrimental cultivation practices that are linked to respiratory illnesses, deforestation, loss of biodiversity and pollution. This analysis illustrates many parallels to the contested nature of practices adopted by the alcohol and tobacco industries. The article concludes with suggested actions for researchers, policy-makers and the global health community to address and mitigate the negative impacts of the palm oil industry on human and planetary health.
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Affiliation(s)
- Sowmya Kadandale
- United Nations Children’s Fund, World Trade Centre Block 6 (10th Floor), Jalan Jenderal Sudirman Kav. 29-31, Jakarta 12920, Indonesia
| | - Robert Marten
- Department of Global Health and Development, The London School of Hygiene & Tropical Medicine, London, England
| | - Richard Smith
- College of Medicine and Health, University of Exeter, Exeter, England
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14
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Mangadze T, Dalu T, William Froneman P. Biological monitoring in southern Africa: A review of the current status, challenges and future prospects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:1492-1499. [PMID: 30340294 DOI: 10.1016/j.scitotenv.2018.08.252] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/18/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
Biological monitoring programmes have gained popularity around the world particularly in southern Africa as they are fast, integrative and cost-effective approaches for assessing the effects of environmental stressors on aquatic ecosystems. This article reviews current efforts that have been made to use bioindicators (i.e. macroinvertebrates, diatoms and fish) in monitoring water resources and to summarise the challenges in employing these biological monitoring tools in southern Africa. In South Africa, macroinvertebrate (South African Scoring System (SASS)) and diatom based indices (e.g. South African diatom index (SADI)) have demonstrated their utility in identifying sources of impairment and determining the extent of impacts thus giving natural resource managers a scientifically defensible rationale for developing guidelines for conservation and management. Despite this advancement in South Africa, however, developing regionally appropriate quantitative tools for diagnosing ecosystem health is a pressing need for several other southern African countries. Together with sound scientific research, it is imperative for southern African countries to develop specific legislation and have mandated agencies, with proper training and funding to implement biomonitoring and bioassessments. We recommend for the advancement and adoption of biological criteria as an integrated approach to assessing the impact of human activities in riverine ecosystems of the southern African region.
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Affiliation(s)
- Tinotenda Mangadze
- Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa.
| | - Tatenda Dalu
- Ecology and Resource Management, University of Venda, Thohoyandou 0950, South Africa
| | - P William Froneman
- Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa
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15
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Ahmadi Mirghaed F, Souri B, Mohammadzadeh M, Salmanmahiny A, Mirkarimi SH. Evaluation of the relationship between soil erosion and landscape metrics across Gorgan Watershed in northern Iran. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:643. [PMID: 30338382 DOI: 10.1007/s10661-018-7040-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Soil erosion is one of the most serious environmental threats strongly influenced by the spatial pattern of land uses. This study was designed to evaluate the relevance of land use pattern and soil erosion using landscape metrics across Gorgan Watershed in northern Iran. Therefore, the revised universal soil loss equation was applied to evaluate and model soil loss and sedimentation in the region. Then, soil erosion relationship to land use pattern was analyzed using a variety of metrics including percentage of landscape, number of patches, largest patch index, and landscape shape index. The results revealed that potential of soil loss, sediment retention, and sediment yield for the whole watershed were 6.6, 2.4, and 1.5 t ha-1 year-1, respectively. The quantity of sediment retention was estimated at 4.3, 3.2, 1.0, and 1.2 t ha-1 year-1 in forest, rangelands, agriculture, and built-up areas, respectively. Similarly, sediment yield was 0.6, 1.6, 1.5, and 2.1 t ha-1 year-1, respectively. The results revealed that the soil loss increased with decreasing metrics of forest and rangelands while increasing metrics of built-up regions and agricultural lands accelerated the process. Moreover, we showed that land use type of patches was an important factor on soil erosion, and soil loss was also affected by area, number, shape, and density of landscape patches. Result of this study can facilitate monitoring of erosion-sensitive areas in the watershed which can help managers and decision makers to design more suitable measures for soil conservation.
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Affiliation(s)
- Fazlolah Ahmadi Mirghaed
- Department of Environmental Sciences, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Basij Square, Gorgan, Golestan, Iran.
| | - Bubak Souri
- Department of Environmental Sciences, Faculty of Natural Resources, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Marjan Mohammadzadeh
- Department of Environmental Sciences, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Basij Square, Gorgan, Golestan, Iran
| | - Abdolrassoul Salmanmahiny
- Department of Environmental Sciences, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Basij Square, Gorgan, Golestan, Iran
| | - Seyed Hamed Mirkarimi
- Department of Environmental Sciences, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Basij Square, Gorgan, Golestan, Iran
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