Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management

Natural wetlands perform essential ecological functions, but their area has dramatically decreased. Partly to counteract this loss, artificial wetlands have been created. While studies comparing animal communities between artificial and natural wetlands abound, research on their comparative ecologic...

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Autores: Orihuela-Torres, Adrián, Pérez-García, Juan M., Arrondo, Eneko, Pessano Serrat, Tatiana, Green, Andy J., Naves-Alegre, Lara, Botella, Francisco, Selva, Nuria, Sánchez-Zapata, José A., Sebastián-González, Esther
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/394077
Acceso en línea:http://hdl.handle.net/10261/394077
https://api.elsevier.com/content/abstract/scopus_id/85212154975
Access Level:acceso abierto
Palabra clave:Aquatic–terrestrial interface
Carrion
Drought
Ecological function
Groundwater abstraction
Nutrient cycling
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dc.title.none.fl_str_mv Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
title Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
spellingShingle Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
Orihuela-Torres, Adrián
Aquatic–terrestrial interface
Carrion
Drought
Ecological function
Groundwater abstraction
Nutrient cycling
title_short Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
title_full Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
title_fullStr Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
title_full_unstemmed Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
title_sort Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem management
dc.creator.none.fl_str_mv Orihuela-Torres, Adrián
Pérez-García, Juan M.
Arrondo, Eneko
Pessano Serrat, Tatiana
Green, Andy J.
Naves-Alegre, Lara
Botella, Francisco
Selva, Nuria
Sánchez-Zapata, José A.
Sebastián-González, Esther
author Orihuela-Torres, Adrián
author_facet Orihuela-Torres, Adrián
Pérez-García, Juan M.
Arrondo, Eneko
Pessano Serrat, Tatiana
Green, Andy J.
Naves-Alegre, Lara
Botella, Francisco
Selva, Nuria
Sánchez-Zapata, José A.
Sebastián-González, Esther
author_role author
author2 Pérez-García, Juan M.
Arrondo, Eneko
Pessano Serrat, Tatiana
Green, Andy J.
Naves-Alegre, Lara
Botella, Francisco
Selva, Nuria
Sánchez-Zapata, José A.
Sebastián-González, Esther
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
European Commission
Ministerio de Educación y Formación Profesional (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Aquatic–terrestrial interface
Carrion
Drought
Ecological function
Groundwater abstraction
Nutrient cycling
topic Aquatic–terrestrial interface
Carrion
Drought
Ecological function
Groundwater abstraction
Nutrient cycling
description Natural wetlands perform essential ecological functions, but their area has dramatically decreased. Partly to counteract this loss, artificial wetlands have been created. While studies comparing animal communities between artificial and natural wetlands abound, research on their comparative ecological functions is scarce. In particular, vertebrate scavengers in aquatic ecosystems have been little studied despite their critical role in nutrient cycling. This study compared vertebrate scavenger assemblages and their consumption patterns in natural and artificial wetlands in Doñana, Spain, to evaluate the effects of wetland management (natural vs. artificial hydrology) across different seasons. We placed 120 carcasses (carp and chicken) in natural and artificial wetlands. We recorded 22 vertebrate scavenger species efficiently consuming 100 % of carrion in an average of less than two days, highlighting their role in nutrient recycling. Carrion of aquatic-origin was consumed faster and by a greater variety of species than that of terrestrial-origin, facilitating the transport of essential nutrients from water to land. Artificial wetlands exhibited higher efficiency in carrion removal (twice as fast as natural wetlands). However, they hosted less diverse assemblages, dominated by opportunistic and non-native species. This suggests that artificial wetlands are not replacing natural wetlands in terms of biodiversity, despite sustaining water levels and functions. Importantly, ‘kidnapping’ water for irrigation reduces the ability of natural wetlands to maintain ecological functions provided by scavengers. Urgent regulation of water abstraction from aquifers, especially for crop irrigation, is necessary to maintain minimum groundwater levels, preserving the functionality and ecological processes of this critical wetland complex.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/394077
https://api.elsevier.com/content/abstract/scopus_id/85212154975
url http://hdl.handle.net/10261/394077
https://api.elsevier.com/content/abstract/scopus_id/85212154975
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The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.biocon.2024.110929
Orihuela-Torres, Adrián; 2024; Data from: Scavenger assemblages and wetland management: kidnapping water and ecosystem services from a biodiversity hotspot [Dataset]; Figshare; https://doi.org/10.6084/m9.figshare.25858660.v1
https://doi.org/10.1016/j.biocon.2024.110929
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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
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instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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spelling Vertebrate scavenger assemblages and their functioning differ between artificial and natural wetlands: Implications for ecosystem managementOrihuela-Torres, AdriánPérez-García, Juan M.Arrondo, EnekoPessano Serrat, TatianaGreen, Andy J.Naves-Alegre, LaraBotella, FranciscoSelva, NuriaSánchez-Zapata, José A.Sebastián-González, EstherAquatic–terrestrial interfaceCarrionDroughtEcological functionGroundwater abstractionNutrient cyclingNatural wetlands perform essential ecological functions, but their area has dramatically decreased. Partly to counteract this loss, artificial wetlands have been created. While studies comparing animal communities between artificial and natural wetlands abound, research on their comparative ecological functions is scarce. In particular, vertebrate scavengers in aquatic ecosystems have been little studied despite their critical role in nutrient cycling. This study compared vertebrate scavenger assemblages and their consumption patterns in natural and artificial wetlands in Doñana, Spain, to evaluate the effects of wetland management (natural vs. artificial hydrology) across different seasons. We placed 120 carcasses (carp and chicken) in natural and artificial wetlands. We recorded 22 vertebrate scavenger species efficiently consuming 100 % of carrion in an average of less than two days, highlighting their role in nutrient recycling. Carrion of aquatic-origin was consumed faster and by a greater variety of species than that of terrestrial-origin, facilitating the transport of essential nutrients from water to land. Artificial wetlands exhibited higher efficiency in carrion removal (twice as fast as natural wetlands). However, they hosted less diverse assemblages, dominated by opportunistic and non-native species. This suggests that artificial wetlands are not replacing natural wetlands in terms of biodiversity, despite sustaining water levels and functions. Importantly, ‘kidnapping’ water for irrigation reduces the ability of natural wetlands to maintain ecological functions provided by scavengers. Urgent regulation of water abstraction from aquifers, especially for crop irrigation, is necessary to maintain minimum groundwater levels, preserving the functionality and ecological processes of this critical wetland complex.AJG was supported by Ministerio de Ciencia e Innovación Project PID2020-112774GB-I00/AEI/10.13039/501100011033. ESG was partially supported by the “European Union NextGenerationEU/PRTR”, by MCIN/AEI/10.13039/501100011033 and by “ESF Investing in your future”, under the CHAN-TWIN project (TED2021-130890B-C21) and the RYC-2019-027216-I. TPS was supported by Spanish Ministry of Education and Vocational Training (22CO1/000897).Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionMinisterio de Educación y Formación Profesional (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/394077https://api.elsevier.com/content/abstract/scopus_id/85212154975reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112774GB-I00info:eu-repo/grantAgreement/AEI//TED2021-130890B-C21info:eu-repo/grantAgreement/AEI//RYC-2019-027216-IThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.biocon.2024.110929Orihuela-Torres, Adrián; 2024; Data from: Scavenger assemblages and wetland management: kidnapping water and ecosystem services from a biodiversity hotspot [Dataset]; Figshare; https://doi.org/10.6084/m9.figshare.25858660.v1https://doi.org/10.1016/j.biocon.2024.110929Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3940772026-05-22T06:33:51Z
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