Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs

Food web interactions are key to community structure. The introduction of species can be seen as an uncontrolled experiment of the addition of species. Introduced species lead to multiple changes, frequently threatening the native biodiversity. However, little is known about their direct effect on t...

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Detalles Bibliográficos
Autores: Barbar, Facundo, Hiraldo, Fernando, Lambertucci, Sergio A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/135869
Acceso en línea:http://hdl.handle.net/10261/135869
Access Level:acceso abierto
Palabra clave:Lagomorpha
Exotic prey,
Oceania
Food webs
South America
Top predators
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repository_id_str
spelling Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphsBarbar, FacundoHiraldo, FernandoLambertucci, Sergio A.LagomorphaExotic prey,OceaniaFood websSouth AmericaTop predatorsFood web interactions are key to community structure. The introduction of species can be seen as an uncontrolled experiment of the addition of species. Introduced species lead to multiple changes, frequently threatening the native biodiversity. However, little is known about their direct effect on the upper level of the food web. In this study we review empirical data on the predator prey relationship between the introduced lagomorphs and their consumers, and use meta-analytical tools to quantify the strength of their interactions. We expect that exotic lagomorphs will destabilize food webs, affect ecological processes and compromise the conservation of the invaded regions. We found 156 studies on the diet of 43 species of predators that consume lagomorphs as exotic preys in South America and Oceania. We found an average exotic lagomorphspredator link of 20% which indicates a strong interaction, given that the average for the strongest links with native prey (when lagomorphs are not included in the predator diet) is about 24%. Additionally, this last link decreases to 17% when lagomorphs are present. When lagomorphs arrive in a new environment they may become the most important resource for predators, producing an unstable equilibrium in the novel food web. Any disruption of this interaction could have catastrophic consequences for the native diversity by directly impacting predators or indirectly impacting native preys by apparent competition. Eradication or any change in their abundances should be carefully considered in conservation actions since those will have great impacts on predator populations and ultimately in the whole communitiesPeer reviewedPeerJConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/135869reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.7717/peerj.2273Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1358692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
title Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
spellingShingle Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
Barbar, Facundo
Lagomorpha
Exotic prey,
Oceania
Food webs
South America
Top predators
title_short Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
title_full Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
title_fullStr Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
title_full_unstemmed Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
title_sort Medium-sized exotic prey create novel food webs: the case of predators and scavengers consuming lagomorphs
dc.creator.none.fl_str_mv Barbar, Facundo
Hiraldo, Fernando
Lambertucci, Sergio A.
author Barbar, Facundo
author_facet Barbar, Facundo
Hiraldo, Fernando
Lambertucci, Sergio A.
author_role author
author2 Hiraldo, Fernando
Lambertucci, Sergio A.
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Lagomorpha
Exotic prey,
Oceania
Food webs
South America
Top predators
topic Lagomorpha
Exotic prey,
Oceania
Food webs
South America
Top predators
description Food web interactions are key to community structure. The introduction of species can be seen as an uncontrolled experiment of the addition of species. Introduced species lead to multiple changes, frequently threatening the native biodiversity. However, little is known about their direct effect on the upper level of the food web. In this study we review empirical data on the predator prey relationship between the introduced lagomorphs and their consumers, and use meta-analytical tools to quantify the strength of their interactions. We expect that exotic lagomorphs will destabilize food webs, affect ecological processes and compromise the conservation of the invaded regions. We found 156 studies on the diet of 43 species of predators that consume lagomorphs as exotic preys in South America and Oceania. We found an average exotic lagomorphspredator link of 20% which indicates a strong interaction, given that the average for the strongest links with native prey (when lagomorphs are not included in the predator diet) is about 24%. Additionally, this last link decreases to 17% when lagomorphs are present. When lagomorphs arrive in a new environment they may become the most important resource for predators, producing an unstable equilibrium in the novel food web. Any disruption of this interaction could have catastrophic consequences for the native diversity by directly impacting predators or indirectly impacting native preys by apparent competition. Eradication or any change in their abundances should be carefully considered in conservation actions since those will have great impacts on predator populations and ultimately in the whole communities
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
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/10261/135869
url http://hdl.handle.net/10261/135869
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.7717/peerj.2273
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv PeerJ
publisher.none.fl_str_mv PeerJ
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 15,198674

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