Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird

Modern farming practices threaten wildlife in different ways, and failure to identify the complexity of multiple threats acting in synergy may result in ineffective management. To protect ground-nesting birds in farmland, monitoring and mitigating impacts of mechanical harvesting is crucial. Here, w...

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Autores: Santangeli, Andrea, Arroyo, Beatriz, Millon, Alexandre, Bretagnolle, Vincent
Tipo de recurso: artículo
Estado:Versión publicada
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:10261/142021
Acceso en línea:http://hdl.handle.net/10261/142021
Access Level:acceso abierto
Palabra clave:Active management
Agricultural intensification
Circus pygargus
Raptors
Citizen science
Evidence-based conservation
Nest predation
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spelling Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland birdSantangeli, AndreaArroyo, BeatrizMillon, AlexandreBretagnolle, VincentActive managementAgricultural intensificationCircus pygargusRaptorsCitizen scienceEvidence-based conservationNest predationModern farming practices threaten wildlife in different ways, and failure to identify the complexity of multiple threats acting in synergy may result in ineffective management. To protect ground-nesting birds in farmland, monitoring and mitigating impacts of mechanical harvesting is crucial. Here, we use 6 years of data from a nationwide volunteer-based monitoring scheme of the Montagu's harrier, a ground-nesting raptor, in French farmlands. We assess the effectiveness of alternative nest protection measures and map their potential benefit to the species. We show that unprotected nests in cultivated land are strongly negatively affected by harvesting and thus require active management. Further, we show that protection from harvesting alone (e.g. by leaving a small unharvested buffer around the nest) is impaired by post-harvest predation at nests that become highly conspicuous after harvest. Measures that simultaneously protect from harvesting and predation (by adding a fence around the nest) significantly enhance nest productivity. The map of expected gain from nest protection in relation to available volunteers' workforce pinpoints large areas of high expected gain from nest protection that are not matched by equally high workforce availability. This mismatch suggests that the impact of nest protection can be further improved by increasing volunteer efforts in key areas where they are low relative to the expected gain they could have. Synthesis and applications. This study shows that synergistic interplay of multiple factors (e.g. mechanical harvesting and predation) may completely undermine the success of well-intentioned conservation efforts. However, identifying areas where the greatest expected gains can be achieved relative to effort expended can minimize the risk of wasted volunteer actions. Overall, this study underscores the importance of citizen science for collecting large-scale data useful for producing science and ultimately informs large-scale evidence-based conservation actions within an adaptive management framework. This study shows that synergistic interplay of multiple factors (e.g. mechanical harvesting and predation) may completely undermine the success of well-intentioned conservation efforts. However, identifying areas where the greatest expected gains can be achieved relative to effort expended can minimize the risk of wasted volunteer actions. Overall, this study underscores the importance of citizen science for collecting large-scale data useful for producing science and ultimately informs large-scale evidence-based conservation actions within an adaptive management framework.A.S. was supported by the Finnish School in Wildlife Biology, Conservation and Management (LUOVA) and by the Kone Foundation.Peer ReviewedBritish Ecological SocietyJohn Wiley & SonsUniversity of HelsinkiKone FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720152017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/142021reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1111/1365-2664.12445Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1420212026-05-22T06:33:51Z
dc.title.none.fl_str_mv Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
title Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
spellingShingle Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
Santangeli, Andrea
Active management
Agricultural intensification
Circus pygargus
Raptors
Citizen science
Evidence-based conservation
Nest predation
title_short Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
title_full Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
title_fullStr Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
title_full_unstemmed Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
title_sort Identifying effective actions to guide volunteer-based and nationwide conservation efforts for a ground-nesting farmland bird
dc.creator.none.fl_str_mv Santangeli, Andrea
Arroyo, Beatriz
Millon, Alexandre
Bretagnolle, Vincent
author Santangeli, Andrea
author_facet Santangeli, Andrea
Arroyo, Beatriz
Millon, Alexandre
Bretagnolle, Vincent
author_role author
author2 Arroyo, Beatriz
Millon, Alexandre
Bretagnolle, Vincent
author2_role author
author
author
dc.contributor.none.fl_str_mv University of Helsinki
Kone Foundation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Active management
Agricultural intensification
Circus pygargus
Raptors
Citizen science
Evidence-based conservation
Nest predation
topic Active management
Agricultural intensification
Circus pygargus
Raptors
Citizen science
Evidence-based conservation
Nest predation
description Modern farming practices threaten wildlife in different ways, and failure to identify the complexity of multiple threats acting in synergy may result in ineffective management. To protect ground-nesting birds in farmland, monitoring and mitigating impacts of mechanical harvesting is crucial. Here, we use 6 years of data from a nationwide volunteer-based monitoring scheme of the Montagu's harrier, a ground-nesting raptor, in French farmlands. We assess the effectiveness of alternative nest protection measures and map their potential benefit to the species. We show that unprotected nests in cultivated land are strongly negatively affected by harvesting and thus require active management. Further, we show that protection from harvesting alone (e.g. by leaving a small unharvested buffer around the nest) is impaired by post-harvest predation at nests that become highly conspicuous after harvest. Measures that simultaneously protect from harvesting and predation (by adding a fence around the nest) significantly enhance nest productivity. The map of expected gain from nest protection in relation to available volunteers' workforce pinpoints large areas of high expected gain from nest protection that are not matched by equally high workforce availability. This mismatch suggests that the impact of nest protection can be further improved by increasing volunteer efforts in key areas where they are low relative to the expected gain they could have. Synthesis and applications. This study shows that synergistic interplay of multiple factors (e.g. mechanical harvesting and predation) may completely undermine the success of well-intentioned conservation efforts. However, identifying areas where the greatest expected gains can be achieved relative to effort expended can minimize the risk of wasted volunteer actions. Overall, this study underscores the importance of citizen science for collecting large-scale data useful for producing science and ultimately informs large-scale evidence-based conservation actions within an adaptive management framework. This study shows that synergistic interplay of multiple factors (e.g. mechanical harvesting and predation) may completely undermine the success of well-intentioned conservation efforts. However, identifying areas where the greatest expected gains can be achieved relative to effort expended can minimize the risk of wasted volunteer actions. Overall, this study underscores the importance of citizen science for collecting large-scale data useful for producing science and ultimately informs large-scale evidence-based conservation actions within an adaptive management framework.
publishDate 2015
dc.date.none.fl_str_mv 2015
2017
2017
2017
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
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/142021
url http://hdl.handle.net/10261/142021
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1111/1365-2664.12445
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv British Ecological Society
John Wiley & Sons
publisher.none.fl_str_mv British Ecological Society
John Wiley & Sons
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 15,812429

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