Prominent role of invasive species in avian biodiversity loss

The rise of extinction rates associated with human activities has led to a growing interest in identifying extinction-prone taxa and extinction-promoting drivers. Previous work has identified habitat alterations and invasive species as the major drivers of recent bird extinctions. Here, we extend thi...

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Detalles Bibliográficos
Autores: Clavero, Miguel, Brotons, Lluís, Pons, Pere, Sol, Daniel
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46561
Acceso en línea:http://hdl.handle.net/10261/46561
Access Level:acceso abierto
Palabra clave:Extinction
risk Extinction drivers
Biotic homogenization
Invasive species
Habitat destruction
Islands
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spelling Prominent role of invasive species in avian biodiversity lossClavero, MiguelBrotons, LluísPons, PereSol, DanielExtinctionrisk Extinction driversBiotic homogenizationInvasive speciesHabitat destructionIslandsThe rise of extinction rates associated with human activities has led to a growing interest in identifying extinction-prone taxa and extinction-promoting drivers. Previous work has identified habitat alterations and invasive species as the major drivers of recent bird extinctions. Here, we extend this work to ask how these human-driven impacts differentially affect extinction-prone taxa, and if any specific driver pro- motes taxonomic homogenization of avifauna. Like most previous studies, our analysis is based on global information of extinction drivers affecting threatened and extinct bird species from the IUCN Red List. Unlike previous studies, we employ a multivariate statistical framework that allows us to identify the main gradients of variation in extinction drivers. By using these gradients, we show that bird families with the highest extinction risk are primarily associated with threats posed by invasive species, once spe- cies richness and phylogeny are taken into account. As expected, the negative impact of invasive species was higher on island species, but our results also showed that it was particularly high in those species with small distribution ranges. On the other hand, mainland species and island species with large ranges tended to be affected by habitat destruction. Thus the impacts of invasive species promote the process of taxonomic homogenization among islands and between islands and continents. Consequently, intro- duced species may increase biotic homogenization not only directly, as generally believed, but also indi- rectly through their disproportional impact on endemic species imperilmentPeer reviewedElsevier201220122009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/46561reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.biocon.2009.03.034info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/465612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Prominent role of invasive species in avian biodiversity loss
title Prominent role of invasive species in avian biodiversity loss
spellingShingle Prominent role of invasive species in avian biodiversity loss
Clavero, Miguel
Extinction
risk Extinction drivers
Biotic homogenization
Invasive species
Habitat destruction
Islands
title_short Prominent role of invasive species in avian biodiversity loss
title_full Prominent role of invasive species in avian biodiversity loss
title_fullStr Prominent role of invasive species in avian biodiversity loss
title_full_unstemmed Prominent role of invasive species in avian biodiversity loss
title_sort Prominent role of invasive species in avian biodiversity loss
dc.creator.none.fl_str_mv Clavero, Miguel
Brotons, Lluís
Pons, Pere
Sol, Daniel
author Clavero, Miguel
author_facet Clavero, Miguel
Brotons, Lluís
Pons, Pere
Sol, Daniel
author_role author
author2 Brotons, Lluís
Pons, Pere
Sol, Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv Extinction
risk Extinction drivers
Biotic homogenization
Invasive species
Habitat destruction
Islands
topic Extinction
risk Extinction drivers
Biotic homogenization
Invasive species
Habitat destruction
Islands
description The rise of extinction rates associated with human activities has led to a growing interest in identifying extinction-prone taxa and extinction-promoting drivers. Previous work has identified habitat alterations and invasive species as the major drivers of recent bird extinctions. Here, we extend this work to ask how these human-driven impacts differentially affect extinction-prone taxa, and if any specific driver pro- motes taxonomic homogenization of avifauna. Like most previous studies, our analysis is based on global information of extinction drivers affecting threatened and extinct bird species from the IUCN Red List. Unlike previous studies, we employ a multivariate statistical framework that allows us to identify the main gradients of variation in extinction drivers. By using these gradients, we show that bird families with the highest extinction risk are primarily associated with threats posed by invasive species, once spe- cies richness and phylogeny are taken into account. As expected, the negative impact of invasive species was higher on island species, but our results also showed that it was particularly high in those species with small distribution ranges. On the other hand, mainland species and island species with large ranges tended to be affected by habitat destruction. Thus the impacts of invasive species promote the process of taxonomic homogenization among islands and between islands and continents. Consequently, intro- duced species may increase biotic homogenization not only directly, as generally believed, but also indi- rectly through their disproportional impact on endemic species imperilment
publishDate 2009
dc.date.none.fl_str_mv 2009
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/46561
url http://hdl.handle.net/10261/46561
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.biocon.2009.03.034
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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