Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures

Autores
Carrete, Martina; Lambertucci, Sergio Agustin; Speziale, Karina Lilian; Ceballos, O.; Travaini, Alejandro; Delibes, M.; Hiraldo, F.; Donázar, José Antonio
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Understanding the factors underlying species coexistence is a major focus in community ecology. When dealing with competition between native and exotic species, the competitive exclusion of the 'weaker' species can have consequences for biodiversity conservation. We examined interspecific interactions during foraging between black vultures Coragyps atratus and Andean condors Vultur gryphus in Southern Argentina. Previous studies suggest facilitatory interactions between them. However, in most parts of their distribution ranges, these species did not coexist until recently, when black vultures expanded their geographic range following human development. Thus, facilitatory processes or segregation patterns could not be fine-tuned enough to allow their coexistence. Our hypothesis is that black vultures and Andean condors compete for food resources, and that this competitive scenario can change depending on local species abundances and habitat humanization. We experimentally placed sheep carcasses in two habitats differing in degrees of humanization to study the foraging patterns in these species. Both species exploited carcasses with similar temporal patterns. However, the first to arrive and the dominant species were different in both habitats, according to their abundances. Although black vultures do not completely prevent the arrival of Andean condors to carcasses, they represent serious obstacles for feeding. Thus, while dominance hierarchy at carcasses could be related to body size, carcass consumption was determined by species abundance. Our results support the hypothesis that the expansion of a 'winning' species may trigger interspecific competition with other 'loser' species, with negative responses towards human activities when they became abundant. Although the results are not conclusive, invasion and extinction processes could be occurring and they can have serious consequences for the diversity (i.e. richness and evenness) of the New World scavenger guilds.
Fil: Carrete, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Speziale, Karina Lilian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ceballos, O.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Delibes, M.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Hiraldo, F.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Donázar, José Antonio. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Materia
ARGENTINA
BIOTIC HOMOGENIZATION
CORAGYPS ATRATUS
INTERSPECIFIC COMPETITION
SOCIAL FORAGING BEHAVIOUR
VULTUR GRYPHUS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/186861
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vulturesCarrete, MartinaLambertucci, Sergio AgustinSpeziale, Karina LilianCeballos, O.Travaini, AlejandroDelibes, M.Hiraldo, F.Donázar, José AntonioARGENTINABIOTIC HOMOGENIZATIONCORAGYPS ATRATUSINTERSPECIFIC COMPETITIONSOCIAL FORAGING BEHAVIOURVULTUR GRYPHUShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Understanding the factors underlying species coexistence is a major focus in community ecology. When dealing with competition between native and exotic species, the competitive exclusion of the 'weaker' species can have consequences for biodiversity conservation. We examined interspecific interactions during foraging between black vultures Coragyps atratus and Andean condors Vultur gryphus in Southern Argentina. Previous studies suggest facilitatory interactions between them. However, in most parts of their distribution ranges, these species did not coexist until recently, when black vultures expanded their geographic range following human development. Thus, facilitatory processes or segregation patterns could not be fine-tuned enough to allow their coexistence. Our hypothesis is that black vultures and Andean condors compete for food resources, and that this competitive scenario can change depending on local species abundances and habitat humanization. We experimentally placed sheep carcasses in two habitats differing in degrees of humanization to study the foraging patterns in these species. Both species exploited carcasses with similar temporal patterns. However, the first to arrive and the dominant species were different in both habitats, according to their abundances. Although black vultures do not completely prevent the arrival of Andean condors to carcasses, they represent serious obstacles for feeding. Thus, while dominance hierarchy at carcasses could be related to body size, carcass consumption was determined by species abundance. Our results support the hypothesis that the expansion of a 'winning' species may trigger interspecific competition with other 'loser' species, with negative responses towards human activities when they became abundant. Although the results are not conclusive, invasion and extinction processes could be occurring and they can have serious consequences for the diversity (i.e. richness and evenness) of the New World scavenger guilds.Fil: Carrete, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Speziale, Karina Lilian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Ceballos, O.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Delibes, M.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Hiraldo, F.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Donázar, José Antonio. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaWiley Blackwell Publishing, Inc2010-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/186861Carrete, Martina; Lambertucci, Sergio Agustin; Speziale, Karina Lilian; Ceballos, O.; Travaini, Alejandro; et al.; Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures; Wiley Blackwell Publishing, Inc; Animal Conservation; 13; 4; 7-2010; 390-3981367-9430CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/j.1469-1795.2010.00352.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1469-1795.2010.00352.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:24:36Zoai:ri.conicet.gov.ar:11336/186861instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:24:36.585CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
title Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
spellingShingle Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
Carrete, Martina
ARGENTINA
BIOTIC HOMOGENIZATION
CORAGYPS ATRATUS
INTERSPECIFIC COMPETITION
SOCIAL FORAGING BEHAVIOUR
VULTUR GRYPHUS
title_short Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
title_full Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
title_fullStr Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
title_full_unstemmed Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
title_sort Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures
dc.creator.none.fl_str_mv Carrete, Martina
Lambertucci, Sergio Agustin
Speziale, Karina Lilian
Ceballos, O.
Travaini, Alejandro
Delibes, M.
Hiraldo, F.
Donázar, José Antonio
author Carrete, Martina
author_facet Carrete, Martina
Lambertucci, Sergio Agustin
Speziale, Karina Lilian
Ceballos, O.
Travaini, Alejandro
Delibes, M.
Hiraldo, F.
Donázar, José Antonio
author_role author
author2 Lambertucci, Sergio Agustin
Speziale, Karina Lilian
Ceballos, O.
Travaini, Alejandro
Delibes, M.
Hiraldo, F.
Donázar, José Antonio
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ARGENTINA
BIOTIC HOMOGENIZATION
CORAGYPS ATRATUS
INTERSPECIFIC COMPETITION
SOCIAL FORAGING BEHAVIOUR
VULTUR GRYPHUS
topic ARGENTINA
BIOTIC HOMOGENIZATION
CORAGYPS ATRATUS
INTERSPECIFIC COMPETITION
SOCIAL FORAGING BEHAVIOUR
VULTUR GRYPHUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Understanding the factors underlying species coexistence is a major focus in community ecology. When dealing with competition between native and exotic species, the competitive exclusion of the 'weaker' species can have consequences for biodiversity conservation. We examined interspecific interactions during foraging between black vultures Coragyps atratus and Andean condors Vultur gryphus in Southern Argentina. Previous studies suggest facilitatory interactions between them. However, in most parts of their distribution ranges, these species did not coexist until recently, when black vultures expanded their geographic range following human development. Thus, facilitatory processes or segregation patterns could not be fine-tuned enough to allow their coexistence. Our hypothesis is that black vultures and Andean condors compete for food resources, and that this competitive scenario can change depending on local species abundances and habitat humanization. We experimentally placed sheep carcasses in two habitats differing in degrees of humanization to study the foraging patterns in these species. Both species exploited carcasses with similar temporal patterns. However, the first to arrive and the dominant species were different in both habitats, according to their abundances. Although black vultures do not completely prevent the arrival of Andean condors to carcasses, they represent serious obstacles for feeding. Thus, while dominance hierarchy at carcasses could be related to body size, carcass consumption was determined by species abundance. Our results support the hypothesis that the expansion of a 'winning' species may trigger interspecific competition with other 'loser' species, with negative responses towards human activities when they became abundant. Although the results are not conclusive, invasion and extinction processes could be occurring and they can have serious consequences for the diversity (i.e. richness and evenness) of the New World scavenger guilds.
Fil: Carrete, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Speziale, Karina Lilian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ceballos, O.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Delibes, M.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Hiraldo, F.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Donázar, José Antonio. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
description Understanding the factors underlying species coexistence is a major focus in community ecology. When dealing with competition between native and exotic species, the competitive exclusion of the 'weaker' species can have consequences for biodiversity conservation. We examined interspecific interactions during foraging between black vultures Coragyps atratus and Andean condors Vultur gryphus in Southern Argentina. Previous studies suggest facilitatory interactions between them. However, in most parts of their distribution ranges, these species did not coexist until recently, when black vultures expanded their geographic range following human development. Thus, facilitatory processes or segregation patterns could not be fine-tuned enough to allow their coexistence. Our hypothesis is that black vultures and Andean condors compete for food resources, and that this competitive scenario can change depending on local species abundances and habitat humanization. We experimentally placed sheep carcasses in two habitats differing in degrees of humanization to study the foraging patterns in these species. Both species exploited carcasses with similar temporal patterns. However, the first to arrive and the dominant species were different in both habitats, according to their abundances. Although black vultures do not completely prevent the arrival of Andean condors to carcasses, they represent serious obstacles for feeding. Thus, while dominance hierarchy at carcasses could be related to body size, carcass consumption was determined by species abundance. Our results support the hypothesis that the expansion of a 'winning' species may trigger interspecific competition with other 'loser' species, with negative responses towards human activities when they became abundant. Although the results are not conclusive, invasion and extinction processes could be occurring and they can have serious consequences for the diversity (i.e. richness and evenness) of the New World scavenger guilds.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/186861
Carrete, Martina; Lambertucci, Sergio Agustin; Speziale, Karina Lilian; Ceballos, O.; Travaini, Alejandro; et al.; Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures; Wiley Blackwell Publishing, Inc; Animal Conservation; 13; 4; 7-2010; 390-398
1367-9430
CONICET Digital
CONICET
url http://hdl.handle.net/11336/186861
identifier_str_mv Carrete, Martina; Lambertucci, Sergio Agustin; Speziale, Karina Lilian; Ceballos, O.; Travaini, Alejandro; et al.; Winners and losers in human-made habitats: Interspecific competition outcomes in two Neotropical vultures; Wiley Blackwell Publishing, Inc; Animal Conservation; 13; 4; 7-2010; 390-398
1367-9430
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1469-1795.2010.00352.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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