Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context

Environmental conditions and resource availability shape population dynamics through direct and indirect effects of climate, biological interactions and the human modification of landscape. Even when a species seems dependent on predictable anthropogenic food resources or subsidies, ecosystem-level...

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Autores: Fernández-Gómez, Lola, Sánchez-Zapata, José A., Donázar, José A., Barber, Xabier, Barbosa, Jomar M.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/362552
Acesso em linha:http://hdl.handle.net/10261/362552
Access Level:Acceso aberto
Palavra-chave:Agricultural policies
Anthropogenic resources
Carrion
Demography
Regime shift
Trophic cascade
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dc.title.none.fl_str_mv Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
title Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
spellingShingle Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
Fernández-Gómez, Lola
Agricultural policies
Anthropogenic resources
Carrion
Demography
Regime shift
Trophic cascade
title_short Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
title_full Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
title_fullStr Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
title_full_unstemmed Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
title_sort Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure context
dc.creator.none.fl_str_mv Fernández-Gómez, Lola
Sánchez-Zapata, José A.
Donázar, José A.
Barber, Xabier
Barbosa, Jomar M.
author Fernández-Gómez, Lola
author_facet Fernández-Gómez, Lola
Sánchez-Zapata, José A.
Donázar, José A.
Barber, Xabier
Barbosa, Jomar M.
author_role author
author2 Sánchez-Zapata, José A.
Donázar, José A.
Barber, Xabier
Barbosa, Jomar M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Cabildo de Fuerteventura
Gobierno de Canarias
Ministerio de Economía y Competitividad (España)
European Commission
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Generalitat Valenciana
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Agricultural policies
Anthropogenic resources
Carrion
Demography
Regime shift
Trophic cascade
topic Agricultural policies
Anthropogenic resources
Carrion
Demography
Regime shift
Trophic cascade
description Environmental conditions and resource availability shape population dynamics through direct and indirect effects of climate, biological interactions and the human modification of landscape. Even when a species seems dependent on predictable anthropogenic food resources or subsidies, ecosystem-level factors can still determine population dynamics across taxa. However, there is still a knowledge gap about the cascade effects driven by climate, vegetation functioning, resource availability and governmental policies on key aspects of species reproduction for top scavengers. Here we put to good use 22 years (2000−2021) of extensive population monitoring from the endemic Canary Egyptian vulture (Neophron percnopterus majorensis) on the Fuerteventura Island (Canary Islands, Spain) to study the relative importance of demographic factors, ecosystem conditions and availability of anthropogenic food sources on breeding success. Our results suggest that ecosystem-level primary productivity, the number of livestock animals present on the island and Density-dependent processes determine the temporal changes in the breeding success of this species. We firstly accounted for a top-down effect of livestock on island vegetation, where overgrazing directly reduces landscape-level vegetation biomass. We, consequently, found a bottom-up effect between vegetation and the Egyptian vulture's breeding success. In this context, minimal changes in ecological conditions can impact the species inhabiting these ecosystems, with direct consequences on a key population stage, such as breeding season, when energy requirements are higher. These results are especially relevant because cascading and indirect effects of ecosystem processes and governmental policies are often overlooked when pursuing conservation goals of endangered species.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
2024
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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.scitotenv.2023.168553
http://dx.doi.org/10.1016/j.scitotenv.2023.168553
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dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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spelling Ecosystem productivity drives the breeding success of an endangered top avian scavenger in a changing grazing pressure contextFernández-Gómez, LolaSánchez-Zapata, José A.Donázar, José A.Barber, XabierBarbosa, Jomar M.Agricultural policiesAnthropogenic resourcesCarrionDemographyRegime shiftTrophic cascadeEnvironmental conditions and resource availability shape population dynamics through direct and indirect effects of climate, biological interactions and the human modification of landscape. Even when a species seems dependent on predictable anthropogenic food resources or subsidies, ecosystem-level factors can still determine population dynamics across taxa. However, there is still a knowledge gap about the cascade effects driven by climate, vegetation functioning, resource availability and governmental policies on key aspects of species reproduction for top scavengers. Here we put to good use 22 years (2000−2021) of extensive population monitoring from the endemic Canary Egyptian vulture (Neophron percnopterus majorensis) on the Fuerteventura Island (Canary Islands, Spain) to study the relative importance of demographic factors, ecosystem conditions and availability of anthropogenic food sources on breeding success. Our results suggest that ecosystem-level primary productivity, the number of livestock animals present on the island and Density-dependent processes determine the temporal changes in the breeding success of this species. We firstly accounted for a top-down effect of livestock on island vegetation, where overgrazing directly reduces landscape-level vegetation biomass. We, consequently, found a bottom-up effect between vegetation and the Egyptian vulture's breeding success. In this context, minimal changes in ecological conditions can impact the species inhabiting these ecosystems, with direct consequences on a key population stage, such as breeding season, when energy requirements are higher. These results are especially relevant because cascading and indirect effects of ecosystem processes and governmental policies are often overlooked when pursuing conservation goals of endangered species.Monitoring was funded by the Cabildo Insular de Fuerteventura, Viceconsejería de Medio Ambiente del Gobierno de Canarias, Research Projects REN 2000-1556 GLO, CGL2004-00270, CGL2012-40013-C02-01, CGL2015-66966-C2-1-2-R and RTI2018-099609-B-C21 (Spanish Ministry of Economy and Competitiveness and EU/FEDER), and the Severo Ochoa Excellence Award from the Spanish Ministry of Economy and Competitiveness (SEV-2012-0262). T. Sánchez-Zapata and L. Fernández-Gómez were supported by the TRASCAR project (RTI2018-099609-B-C21) from the Spanish Ministry of Science and Innovation, the European Regional Development Fund and DIGITALPAST (TED2021-130005B-C21) from the Spanish Ministry of Science and Innovation, NextGeneration EU. This study also forms part of the AGROALNEXT (2022/038) programme. It was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1) and by the Generalitat Valenciana. J. M. Barbosa was supported by the Generalitat Valenciana (CIDEGENT/2020/030). X.B. was supported by the the Spanish Ministry of Science and Innovation-State Research Agency for grant PID2019-106341GB-I00 (jointly financed by the European Regional Development Fund, FEDER).With funding from the Spanish goverment through the "Severo Ochoa Centre of Excellence" accreditation (SEV-2012-0262)Peer reviewedElsevier BVCabildo de FuerteventuraGobierno de CanariasMinisterio de Economía y Competitividad (España)European CommissionMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Generalitat ValencianaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/362552reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésInglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//CGL2012-40013-C02-01info:eu-repo/grantAgreement/MINECO//CGL2004-00270info:eu-repo/grantAgreement/MINECO//CGL2015-66966-C2-1-2-Rinfo:eu-repo/grantAgreement/MINECO//SEV-2012-0262info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099609-B-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106341GB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.scitotenv.2023.168553http://dx.doi.org/10.1016/j.scitotenv.2023.168553Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3625522026-05-22T06:33:51Z
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