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Vander Vorste R, Obedzinski M, Nossaman Pierce S, Carlson SM, Grantham TE. Refuges and ecological traps: Extreme drought threatens persistence of an endangered fish in intermittent streams. Glob Chang Biol 2020; 26:3834-3845. [PMID: 32293095 PMCID: PMC7384119 DOI: 10.1111/gcb.15116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 05/01/2019] [Revised: 03/13/2020] [Accepted: 03/27/2020] [Indexed: 05/26/2023]
Abstract
Recent droughts raise global concern over potential biodiversity loss and mitigating impacts to vulnerable species has become a management priority. However, drought impacts on populations are difficult to predict, in part, because habitat refuges can buffer organisms from harsh environmental conditions. In a global change context, more extreme droughts may turn previously suitable habitats into ecological traps, where vulnerable species can no longer persist. Here, we explore the impacts of California's recent record-breaking drought on endangered juvenile Coho salmon. We estimated the variability of cumulative salmon survival using mark-recapture of nearly 20,000 tagged fish in intermittent stream pools during a 7-year period encompassing drought and non-drought conditions. We then determined the relative importance of physical habitat, streamflow, precipitation, landscape, and biological characteristics that may limit survival during drought. Our most striking result was an increase in the number of pools with reduced or zero survival during drought years and a coincident increase in spatial variability in survival among study reaches. In nearly half of the stream pools, salmon survival during drought was similar to mean survival of pools assessed during non-drought years, indicating some pools had remarkable resistance (ability to withstand disturbance) to extreme drought. Lower survival was most attributable to longer duration of disconnection between upstream and downstream habitats, a consequence of increasing drought severity. Our results not only suggest that many pools sustain juvenile salmon in non-drought years transition into ecological traps during drought but also highlight that some pools serve as refuges even under extreme drought conditions. Projected increases in drought severity that lead to longer droughts and greater habitat fragmentation could transform an increasing proportion of suitable habitats into ecological traps. Predicting future impacts of drought on Coho salmon and other sensitive species will require identification and protection of drought refuges and management strategies that prevent further habitat fragmentation.
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Affiliation(s)
- Ross Vander Vorste
- Department of Environmental Science, Policy, & ManagementUniversity of California BerkeleyBerkeleyCAUSA
- Present address:
Department of BiologyUniversity of Wisconsin La CrosseLa CrosseWIUSA
| | | | | | - Stephanie M. Carlson
- Department of Environmental Science, Policy, & ManagementUniversity of California BerkeleyBerkeleyCAUSA
| | - Theodore E. Grantham
- Department of Environmental Science, Policy, & ManagementUniversity of California BerkeleyBerkeleyCAUSA
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2
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Shumilova O, Zak D, Datry T, von Schiller D, Corti R, Foulquier A, Obrador B, Tockner K, Allan DC, Altermatt F, Arce MI, Arnon S, Banas D, Banegas‐Medina A, Beller E, Blanchette ML, Blanco‐Libreros JF, Blessing J, Boëchat IG, Boersma K, Bogan MT, Bonada N, Bond NR, Brintrup K, Bruder A, Burrows R, Cancellario T, Carlson SM, Cauvy‐Fraunié S, Cid N, Danger M, de Freitas Terra B, Girolamo AMD, del Campo R, Dyer F, Elosegi A, Faye E, Febria C, Figueroa R, Four B, Gessner MO, Gnohossou P, Cerezo RG, Gomez‐Gener L, Graça MA, Guareschi S, Gücker B, Hwan JL, Kubheka S, Langhans SD, Leigh C, Little CJ, Lorenz S, Marshall J, McIntosh A, Mendoza‐Lera C, Meyer EI, Miliša M, Mlambo MC, Moleón M, Negus P, Niyogi D, Papatheodoulou A, Pardo I, Paril P, Pešić V, Rodriguez‐Lozano P, Rolls RJ, Sanchez‐Montoya MM, Savić A, Steward A, Stubbington R, Taleb A, Vorste RV, Waltham N, Zoppini A, Zarfl C. Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter. Glob Chang Biol 2019; 25:1591-1611. [PMID: 30628191 PMCID: PMC6850495 DOI: 10.1111/gcb.14537] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 08/17/2018] [Accepted: 10/07/2018] [Indexed: 06/01/2023]
Abstract
Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%-98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events.
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Affiliation(s)
- Oleksandra Shumilova
- Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB)BerlinGermany
- Institute of BiologyFreie Universität Berlin (FU)BerlinGermany
- Department of CivilEnvironmental and Mechanical EngineeringTrento UniversityTrentoItaly
| | - Dominik Zak
- Institute of BiologyFreie Universität Berlin (FU)BerlinGermany
- Institute of Landscape Ecology and Site EvaluationUniversity of RostockRostockGermany
- Department of BioscienceAarhus UniversitySilkeborgDenmark
| | - Thibault Datry
- IRSTEAUR RIVERLYCentre de Lyon‐VilleurbanneVilleurbanne CedexFrance
| | - Daniel von Schiller
- Department of Plant Biology and EcologyFaculty of Science and TechnologyUniversity of the Basque Country (UPV/EHU)BilbaoSpain
| | - Roland Corti
- IRSTEAUR RIVERLYCentre de Lyon‐VilleurbanneVilleurbanne CedexFrance
| | - Arnaud Foulquier
- Laboratoire d’Écologie Alpine (LECA)UMR CNRS‐UGA‐USMB 5553Université Grenoble AlpesGrenobleFrance
| | - Biel Obrador
- Department of Evolutionary Biology, Ecology and Environmental SciencesFaculty of BiologyBiodiversity Research Institute (IRBIO)University of BarcelonaBarcelonaSpain
| | - Klement Tockner
- Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB)BerlinGermany
- Institute of BiologyFreie Universität Berlin (FU)BerlinGermany
- Austrian Science Fund (FWF)ViennaAustria
| | | | - Florian Altermatt
- Department of Evolutionary Biology and Environmental StudiesUniversity of ZurichZürichSwitzerland
| | - María Isabel Arce
- Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB)BerlinGermany
- Centre of Edaphology and Applied Biology of Segura (CEBAS‐CSIC)MurciaSpain
| | - Shai Arnon
- Zuckerberg Institute for Water ResearchThe Jacob Blaustein Institutes for Desert ResearchBen‐Gurion University of the NegevBeershebaIsrael
| | - Damien Banas
- Université de Lorraine ‐ UR AFPAVandoeuvre‐Les‐NancyFrance
| | - Andy Banegas‐Medina
- Faculty of Environmental Science and EULA‐Chile CenterUniversidad de ConcepciónConcepciónChile
| | - Erin Beller
- Department of GeographyUniversity of CaliforniaBerkeleyCalifornia
| | - Melanie L. Blanchette
- Mine Water and Environment Research Centre (MiWER)School of ScienceEdith Cowan UniversityPerthAustralia
| | | | - Joanna Blessing
- Department of Environment and ScienceQueensland GovernmentBrisbaneQldAustralia
| | | | - Kate Boersma
- Department of BiologyUniversity of San DiegoSan DiegoCalifornia
| | - Michael T. Bogan
- School of Natural Resources and the EnvironmentUniversity of ArizonaTucsonArizona
| | - Núria Bonada
- Grup de Recerca Freshwater Ecology, Hydrology and Management (FEHM)Departament de Biologia EvolutivaEcologia i Ciències AmbientalsInstitut de Recerca de la Biodiversitat (IRBio)Universitat de BarcelonaBarcelonaSpain
| | - Nick R. Bond
- Centre for Freshwater EcosystemsLa Trobe UniversityWodongaVic.Australia
| | - Kate Brintrup
- Faculty of Environmental Science and EULA‐Chile CenterUniversidad de ConcepciónConcepciónChile
| | - Andreas Bruder
- Laboratory of Applied MicrobiologyUniversity of Applied Sciences and Arts of Southern SwitzerlandBellinzonaSwitzerland
| | - Ryan Burrows
- Australian Rivers InstituteGriffith UniversityNathanQldAustralia
| | - Tommaso Cancellario
- Department of Environmental BiologyBiodiversity Data Analytics and Environmental Quality GroupUniversity of NavarraPamplonaSpain
| | - Stephanie M. Carlson
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCalifornia
| | | | - Núria Cid
- Grup de Recerca Freshwater Ecology, Hydrology and Management (FEHM)Departament de Biologia EvolutivaEcologia i Ciències AmbientalsInstitut de Recerca de la Biodiversitat (IRBio)Universitat de BarcelonaBarcelonaSpain
| | | | | | - Anna Maria De Girolamo
- Water Research Institute – National Research Council (IRSA‐CNR)Montelibretti (Rome)Italy
| | - Ruben del Campo
- Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB)BerlinGermany
- Department of Ecology and HydrologyRegional Campus of International Excellence ‘Campus Mare Nostrum’ – University of MurciaMurciaSpain
| | - Fiona Dyer
- Institute for Applied EcologyUniversity of CanberraBruceCanberra ACTAustralia
| | - Arturo Elosegi
- Department of Plant Biology and EcologyFaculty of Science and TechnologyUniversity of the Basque Country (UPV/EHU)BilbaoSpain
| | - Emile Faye
- Centre International de Recherche en Agronomie pour le DéveloppementCIRADUPR HortSysMontpellierFrance
| | - Catherine Febria
- School of Biological SciencesUniversity of CanterburyChristchurchNew Zealand
- Great Lakes Institute for Environmental ResearchUniversity of WindsorWindsorCanada
| | - Ricardo Figueroa
- Faculty of Environmental Science and EULA‐Chile CenterUniversidad de ConcepciónConcepciónChile
| | - Brian Four
- INRAUAR 1275 DEPT EFPACentre de recherche de NancyChampenouxFrance
| | - Mark O. Gessner
- Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB)BerlinGermany
- Department of EcologyBerlin Institute of Technology (TU Berlin)BerlinGermany
| | - Pierre Gnohossou
- Faculté d'AgronomieDépartement d'Aménagement et de Gestion des Ressources NaturellesUniversité de ParakouParakouBenin
| | - Rosa Gómez Cerezo
- Department of Ecology and HydrologyRegional Campus of International Excellence ‘Campus Mare Nostrum’ – University of MurciaMurciaSpain
| | - Lluís Gomez‐Gener
- Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
| | - Manuel A.S. Graça
- MARE – Marine and Environmental Sciences CentreDepartment of Life SciencesUniversity of CoimbraCoimbraPortugal
| | - Simone Guareschi
- Department of Ecology and HydrologyRegional Campus of International Excellence ‘Campus Mare Nostrum’ – University of MurciaMurciaSpain
| | - Björn Gücker
- Department of GeosciencesFederal University of São João del‐ReiSão João del‐ReiBrazil
| | - Jason L. Hwan
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCalifornia
| | | | - Simone Daniela Langhans
- Department of ZoologyUniversity of OtagoDunedinNew Zealand
- BC3‐Basque Centre for Climate ChangeLeioaSpain
| | - Catherine Leigh
- Australian Rivers InstituteGriffith UniversityNathanQldAustralia
- ARC Centre of Excellence for Mathematical & Statistical Frontiers (ACEMS) and Institute for Future EnvironmentsSchool of Mathematical SciencesQueensland University of TechnologyBrisbaneQldAustralia
| | - Chelsea J. Little
- Department of Evolutionary Biology and Environmental StudiesUniversity of ZurichZürichSwitzerland
- Department of Aquatic Ecology, EawagThe Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
| | - Stefan Lorenz
- Institute for Ecological ChemistryPlant Analysis and Stored Product ProtectionJulius‐Kuehn‐InstituteBerlinGermany
| | - Jonathan Marshall
- Department of Environment and ScienceQueensland GovernmentBrisbaneQldAustralia
- Australian Rivers InstituteGriffith UniversityNathanQldAustralia
| | - Angus McIntosh
- School of Biological SciencesUniversity of CanterburyChristchurchNew Zealand
| | - Clara Mendoza‐Lera
- IRSTEAUR RIVERLYCentre de Lyon‐VilleurbanneVilleurbanne CedexFrance
- Department of Freshwater ConservationBTU Cottbus‐SenftenbergBad SaarowGermany
| | | | - Marko Miliša
- Department of BiologyFaculty of ScienceUniversity of ZagrebZagrebCroatia
| | - Musa C. Mlambo
- Department of Freshwater InvertebratesAlbany MuseumAffiliated Research Institute of Rhodes UniversityGrahamstownSouth Africa
| | - Marcos Moleón
- Department of ZoologyUniversity of GranadaGranadaSpain
| | - Peter Negus
- Department of Environment and ScienceQueensland GovernmentBrisbaneQldAustralia
| | - Dev Niyogi
- Missouri University of Science and TechnologyRollaMissouri
| | | | - Isabel Pardo
- Departamento de Ecología y Biología AnimalUniversidad de VigoVigoSpain
| | - Petr Paril
- Department of Botany and ZoologyFaculty of ScienceMasaryk UniversityBrnoCzech Republic
| | - Vladimir Pešić
- Department of BiologyUniversity of MontenegroPodgoricaMontenegro
| | - Pablo Rodriguez‐Lozano
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCalifornia
| | - Robert J. Rolls
- School of Environmental and Rural ScienceUniversity of New EnglandArmidaleNSWAustralia
| | - Maria Mar Sanchez‐Montoya
- Department of Ecology and HydrologyRegional Campus of International Excellence ‘Campus Mare Nostrum’ – University of MurciaMurciaSpain
| | - Ana Savić
- Department of Biology and EcologyFaculty of Sciences and MathematicsUniversity of NišNišSerbia
| | - Alisha Steward
- Department of Environment and ScienceQueensland GovernmentBrisbaneQldAustralia
- Australian Rivers InstituteGriffith UniversityNathanQldAustralia
| | | | - Amina Taleb
- Laboratoire d’Écologie et Gestion des Ecosystèmes Naturels (LECGEN)University of TlemcenTlemcenAlgeria
| | - Ross Vander Vorste
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCalifornia
| | - Nathan Waltham
- TropWATER (Centre for Tropical Water and Aquatic Ecosystem Research)College of Science and EngineeringJames Cook UniversityTownsvilleQldAustralia
| | - Annamaria Zoppini
- Water Research Institute – National Research Council (IRSA‐CNR)Montelibretti (Rome)Italy
| | - Christiane Zarfl
- Center for Applied GeosciencesEberhard Karls Universität TübingenTübingenGermany
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Marshall JC, Acuña V, Allen DC, Bonada N, Boulton AJ, Carlson SM, Dahm CN, Datry T, Leigh C, Negus P, Richardson JS, Sabater S, Stevenson RJ, Steward AL, Stubbington R, Tockner K, Vander Vorste R. Protecting U.S. temporary waterways. Science 2018; 361:856-857. [DOI: 10.1126/science.aav0839] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Jonathan C. Marshall
- Water Planning Ecology, Queensland Department of Environment and Science, Brisbane, QLD 4001, Australia
- Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia
| | - Vicenç Acuña
- Catalan Institute for Water Research, Girona, Spain
| | - Daniel C. Allen
- Department of Biology, University of Oklahoma, Norman, OK 73019, USA
| | - Núria Bonada
- Grup de Recerca Freshwater Ecology, Hydrology and Management (FEHM-Lab), Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Catalonia, Spain
| | - Andrew J. Boulton
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2350, Australia
| | - Stephanie M. Carlson
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA 94720, USA
| | - Clifford N. Dahm
- Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Thibault Datry
- IRSTEA, UR RiverLy, Centre de Lyon-Villeurbanne, Villeurbanne, France
| | - Catherine Leigh
- Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia
- Institute for Future Environments and School of Mathematical Sciences, Queensland University of Technology, Brisbane, QLD 4001, Australia
- ARC Centre of Excellence for Mathematical and Statistical Frontiers, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Peter Negus
- Water Planning Ecology, Queensland Department of Environment and Science, Brisbane, QLD 4001, Australia
| | - John S. Richardson
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Sergi Sabater
- Catalan Institute for Water Research, Girona, Spain
- Institute of Aquatic Ecology, University of Girona, Girona, Spain
| | - R. Jan Stevenson
- Center for Water Science, Michigan State University, East Lansing, MI 48824, USA
| | - Alisha L. Steward
- Water Planning Ecology, Queensland Department of Environment and Science, Brisbane, QLD 4001, Australia
- Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia
| | - Rachel Stubbington
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Klement Tockner
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, IGB, Berlin, Germany
- Austrian Science Fund, FWF, Vienna, Austria
| | - Ross Vander Vorste
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA 94720, USA
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Datry T, Vander Vorste R, Goïtia E, Moya N, Campero M, Rodriguez F, Zubieta J, Oberdorff T. Context-dependent resistance of freshwater invertebrate communities to drying. Ecol Evol 2017; 7:3201-3211. [PMID: 28480019 PMCID: PMC5415507 DOI: 10.1002/ece3.2870] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/03/2017] [Accepted: 02/07/2017] [Indexed: 01/20/2023] Open
Abstract
More freshwater ecosystems are drying in response to global change thereby posing serious threat to freshwater biota and functions. The production of desiccation-resistant forms is an important adaptation that helps maintain biodiversity in temporary freshwaters by buffering communities from drying, but its potential to mitigate the negative effects of drying in freshwater ecosystems could vary greatly across regions and ecosystem types. We explored this context dependency by quantifying the potential contribution of desiccation-resistance forms to invertebrate community recovery across levels of regional drying prevalence (defined as the occurrence of drying events in freshwaters in a given region) and ecosystem types (lentic, lotic) in temporary neotropical freshwaters. We first predicted that regional drying prevalence influences the selection of species with desiccation-resistant forms from the regional species pools and thus increases the ability of communities to recover from drying. Second, we predicted lentic freshwaters harbor higher proportions of species with desiccation-resistant forms compared to lotic, in response to contrasted hydrologic connectivity. To test these predictions, we used natural experiments to quantify the contribution of desiccation-resistant forms to benthic invertebrate community recovery in nine intermittent streams and six geographically isolated temporary wetlands from three Bolivian regions differing in drying prevalence. The contribution of desiccation-resistant forms to community recovery was highest where regional drying prevalence was high, suggesting the species pool was adapted to regional disturbance regimes. The contribution of desiccation-resistant forms to community recovery was lower in streams than in wetlands, emphasizing the importance of hydrologic connectivity and associated recolonization processes from in-stream refuges to recovery in lotic systems. In all regions, the majority of functional traits were present in desiccation-resistant taxa indicating this adaptation may help maintain ecosystem functions by buffering communities from the loss of functional traits. Accounting for regional context and hydrologic connectivity in community recovery processes following drying can help refine predictions of freshwater biodiversity response to global change.
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Affiliation(s)
- Thibault Datry
- IRSTEA UR-MALY centre de Lyon-Villeurbanne VILLEURBANNE Cedex France.,UMR "BOREA" CNRS 7208/IRD 207/MNHN/UPMC UNICAEN Museum National d'Histoire Naturelle Paris Cedex France.,Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia
| | - Ross Vander Vorste
- IRSTEA UR-MALY centre de Lyon-Villeurbanne VILLEURBANNE Cedex France.,Present address: Virginia Water Resources Research Institute Virginia Tech Blacksburg VA USA
| | - Edgar Goïtia
- Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia
| | - Nabor Moya
- Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia.,UNIBOL Quechua "Casimiro Huanca" Chimoré Cochabamba Bolivia
| | - Melina Campero
- Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia
| | - Fabiola Rodriguez
- Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia
| | - Jose Zubieta
- Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia
| | - Thierry Oberdorff
- UMR "BOREA" CNRS 7208/IRD 207/MNHN/UPMC UNICAEN Museum National d'Histoire Naturelle Paris Cedex France.,Unidad de Limnología y Recursos Acuáticos (ULRA) Universidad Mayor de San Simón Cochabamba Bolivia.,UMR 5174 EDB, CNRS, UPSENFA - Université Paul Sabatier Toulouse France
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