Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community

In a restored wetland (South of Spain), where different flow regimes control water exchange with the adjacent Guadalquivir estuary, the native Palaemon varians coexists with an exotic counterpart species Palaemon macrodactylus. This controlled m\acrocosm offers an excellent opportunity to investigat...

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Autores: González-Ortegón, Enrique, Walton, Mark Edward Mackay, Moghaddam, B., Vilas, César, Prieto, Ana, Kennedy, H. A., Cañavate, J. Pedro, Le Vay, Lewis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/168693
Acceso en línea:http://hdl.handle.net/10261/168693
Access Level:acceso abierto
Palabra clave:Wetland
Water management
Flow regime
Stable isotope analysis
Food webs
Invasive species
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spelling Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate communityGonzález-Ortegón, EnriqueWalton, Mark Edward MackayMoghaddam, B.Vilas, CésarPrieto, AnaKennedy, H. A.Cañavate, J. PedroLe Vay, LewisWetlandWater managementFlow regimeStable isotope analysisFood websInvasive speciesIn a restored wetland (South of Spain), where different flow regimes control water exchange with the adjacent Guadalquivir estuary, the native Palaemon varians coexists with an exotic counterpart species Palaemon macrodactylus. This controlled m\acrocosm offers an excellent opportunity to investigate how the effects of water management, through different flow regimes, and the presence of a non-native species affect the aquatic community and the trophic niche (by gut contents and C-N isotopic composition) of the native shrimp Palaemon varians. We found that increased water exchange rate (5% day− 1 in mixed ponds vs. 0.1% day− 1 in extensive ponds) modified the aquatic community of this wetland; while extensive ponds are dominated by isopods and amphipods with low presence of P. macrodactylus, mixed ponds presented high biomass of mysids, corixids, copepods and both shrimp species. An estuarine origin of nutrients and primary production might explain seasonal and spatial differences found among ponds of this wetland. A combined analysis of gut contents and isotopic composition of the native and the exotic species showed that: (1) native P. varians is mainly omnivorous (2) while the non-native P. macrodactylus is more zooplanktivorous and (3) a dietary overlap occurred when both species coexist at mixed ponds where a higher water exchange and high abundance of mysids and copepods diversifies the native species' diet. Thus differences in the trophic ecology of both species are clearly explained by water management. This experimental study is a valuable tool for integrated management between river basin and wetlands since it allows quantification of wetland community changes in response to the flow regime.The study was supported by the SEAFARE project with funding from the European Union Atlantic Area Transnational Programme (2007 - 2013) under grant agreement 2009-1/123.E. González-Ortegón was supported by a Marie Curie Intra-European Fellowship within the 7th European Community Framework Programme (EARL-274308). Additional financial support was from SCARCE (Consolider-Ingenio 2010 CSD2009-00065).Peer reviewedElsevierEuropean CommissionMinisterio de Economía y Competitividad (España)201820182015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/168693reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/274308http://dx.doi.org/10.1016/j.scitotenv.2014.09.002Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1686932026-05-22T06:33:51Z
dc.title.none.fl_str_mv Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
title Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
spellingShingle Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
González-Ortegón, Enrique
Wetland
Water management
Flow regime
Stable isotope analysis
Food webs
Invasive species
title_short Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
title_full Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
title_fullStr Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
title_full_unstemmed Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
title_sort Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community
dc.creator.none.fl_str_mv González-Ortegón, Enrique
Walton, Mark Edward Mackay
Moghaddam, B.
Vilas, César
Prieto, Ana
Kennedy, H. A.
Cañavate, J. Pedro
Le Vay, Lewis
author González-Ortegón, Enrique
author_facet González-Ortegón, Enrique
Walton, Mark Edward Mackay
Moghaddam, B.
Vilas, César
Prieto, Ana
Kennedy, H. A.
Cañavate, J. Pedro
Le Vay, Lewis
author_role author
author2 Walton, Mark Edward Mackay
Moghaddam, B.
Vilas, César
Prieto, Ana
Kennedy, H. A.
Cañavate, J. Pedro
Le Vay, Lewis
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía y Competitividad (España)
dc.subject.none.fl_str_mv Wetland
Water management
Flow regime
Stable isotope analysis
Food webs
Invasive species
topic Wetland
Water management
Flow regime
Stable isotope analysis
Food webs
Invasive species
description In a restored wetland (South of Spain), where different flow regimes control water exchange with the adjacent Guadalquivir estuary, the native Palaemon varians coexists with an exotic counterpart species Palaemon macrodactylus. This controlled m\acrocosm offers an excellent opportunity to investigate how the effects of water management, through different flow regimes, and the presence of a non-native species affect the aquatic community and the trophic niche (by gut contents and C-N isotopic composition) of the native shrimp Palaemon varians. We found that increased water exchange rate (5% day− 1 in mixed ponds vs. 0.1% day− 1 in extensive ponds) modified the aquatic community of this wetland; while extensive ponds are dominated by isopods and amphipods with low presence of P. macrodactylus, mixed ponds presented high biomass of mysids, corixids, copepods and both shrimp species. An estuarine origin of nutrients and primary production might explain seasonal and spatial differences found among ponds of this wetland. A combined analysis of gut contents and isotopic composition of the native and the exotic species showed that: (1) native P. varians is mainly omnivorous (2) while the non-native P. macrodactylus is more zooplanktivorous and (3) a dietary overlap occurred when both species coexist at mixed ponds where a higher water exchange and high abundance of mysids and copepods diversifies the native species' diet. Thus differences in the trophic ecology of both species are clearly explained by water management. This experimental study is a valuable tool for integrated management between river basin and wetlands since it allows quantification of wetland community changes in response to the flow regime.
publishDate 2015
dc.date.none.fl_str_mv 2015
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/168693
url http://hdl.handle.net/10261/168693
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/274308
http://dx.doi.org/10.1016/j.scitotenv.2014.09.002
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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