Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina

Autores
Frere, Esteban; Quintana, Flavio Roberto; Gandini, Patricia Alejandra; Wilson, Rory P
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. When breeding in sympatry there was little overlap in the foraging locations of the two species, with the highest densities of each species separated by 10 km. Red-legged Cormorants fed significantly closer to the breeding colony than did Rock Shags and undertook shorter foraging trips, making almost twice as many foraging trips per day as Rock Shags. Rock Shags breeding in isolation had a shorter foraging range than the birds breeding in sympatry with Red-legged Cormorants and foraging trip duration was significantly shorter. However, the number of feeding trips per day was similar between areas of sympatry and allopatry. Differences in the foraging ecology of Rock Shags in areas of sympatry and allopatry may be due to interspecific competition, which forces niche differentiation. The distance between foraging sites, the speed of movement of the prey, a species tendency to move into prey-depleted areas and the length of the breeding season (during which the birds are constrained to be in the same area) may play critical roles in determining the extent to which differential area use by competitors is a strategy that benefits both parties.
Fil: Frere, Esteban. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos
Fil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Wilson, Rory P. Swansea University; Reino Unido
Materia
FEEDING ECOLOGY
INTERSPECIFIC COMPETITION
PELECANIFORMES
RED-LEGGED CORMORANT PHALACROCORAX GAIMARDI
RESOURCE USE
ROCK SHAGS PHALACROCORAX MAGELLANICUS
SEABIRDS
SOUTH AMERICA
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:11336/100490
Acceder
id CONICETDig_eeef2c036a4683bea06384dde0223a0b
oai_identifier_str oai:ri.conicet.gov.ar:11336/100490
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, ArgentinaFrere, EstebanQuintana, Flavio RobertoGandini, Patricia AlejandraWilson, Rory PFEEDING ECOLOGYINTERSPECIFIC COMPETITIONPELECANIFORMESRED-LEGGED CORMORANT PHALACROCORAX GAIMARDIRESOURCE USEROCK SHAGS PHALACROCORAX MAGELLANICUSSEABIRDSSOUTH AMERICAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. When breeding in sympatry there was little overlap in the foraging locations of the two species, with the highest densities of each species separated by 10 km. Red-legged Cormorants fed significantly closer to the breeding colony than did Rock Shags and undertook shorter foraging trips, making almost twice as many foraging trips per day as Rock Shags. Rock Shags breeding in isolation had a shorter foraging range than the birds breeding in sympatry with Red-legged Cormorants and foraging trip duration was significantly shorter. However, the number of feeding trips per day was similar between areas of sympatry and allopatry. Differences in the foraging ecology of Rock Shags in areas of sympatry and allopatry may be due to interspecific competition, which forces niche differentiation. The distance between foraging sites, the speed of movement of the prey, a species tendency to move into prey-depleted areas and the length of the breeding season (during which the birds are constrained to be in the same area) may play critical roles in determining the extent to which differential area use by competitors is a strategy that benefits both parties.Fil: Frere, Esteban. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados UnidosFil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Wilson, Rory P. Swansea University; Reino UnidoWiley Blackwell Publishing, Inc2008-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100490Frere, Esteban; Quintana, Flavio Roberto; Gandini, Patricia Alejandra; Wilson, Rory P; Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina; Wiley Blackwell Publishing, Inc; Ibis; 150; 3; 7-2008; 558-5640019-1019CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1474-919X.2008.00824.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1474-919X.2008.00824.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 Técnicas2025-09-03T09:51:50Zoai:ri.conicet.gov.ar:11336/100490instacron: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:34982025-09-03 09:51:51.093CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
title Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
spellingShingle Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
Frere, Esteban
FEEDING ECOLOGY
INTERSPECIFIC COMPETITION
PELECANIFORMES
RED-LEGGED CORMORANT PHALACROCORAX GAIMARDI
RESOURCE USE
ROCK SHAGS PHALACROCORAX MAGELLANICUS
SEABIRDS
SOUTH AMERICA
title_short Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
title_full Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
title_fullStr Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
title_full_unstemmed Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
title_sort Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
dc.creator.none.fl_str_mv Frere, Esteban
Quintana, Flavio Roberto
Gandini, Patricia Alejandra
Wilson, Rory P
author Frere, Esteban
author_facet Frere, Esteban
Quintana, Flavio Roberto
Gandini, Patricia Alejandra
Wilson, Rory P
author_role author
author2 Quintana, Flavio Roberto
Gandini, Patricia Alejandra
Wilson, Rory P
author2_role author
author
author
dc.subject.none.fl_str_mv FEEDING ECOLOGY
INTERSPECIFIC COMPETITION
PELECANIFORMES
RED-LEGGED CORMORANT PHALACROCORAX GAIMARDI
RESOURCE USE
ROCK SHAGS PHALACROCORAX MAGELLANICUS
SEABIRDS
SOUTH AMERICA
topic FEEDING ECOLOGY
INTERSPECIFIC COMPETITION
PELECANIFORMES
RED-LEGGED CORMORANT PHALACROCORAX GAIMARDI
RESOURCE USE
ROCK SHAGS PHALACROCORAX MAGELLANICUS
SEABIRDS
SOUTH AMERICA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. When breeding in sympatry there was little overlap in the foraging locations of the two species, with the highest densities of each species separated by 10 km. Red-legged Cormorants fed significantly closer to the breeding colony than did Rock Shags and undertook shorter foraging trips, making almost twice as many foraging trips per day as Rock Shags. Rock Shags breeding in isolation had a shorter foraging range than the birds breeding in sympatry with Red-legged Cormorants and foraging trip duration was significantly shorter. However, the number of feeding trips per day was similar between areas of sympatry and allopatry. Differences in the foraging ecology of Rock Shags in areas of sympatry and allopatry may be due to interspecific competition, which forces niche differentiation. The distance between foraging sites, the speed of movement of the prey, a species tendency to move into prey-depleted areas and the length of the breeding season (during which the birds are constrained to be in the same area) may play critical roles in determining the extent to which differential area use by competitors is a strategy that benefits both parties.
Fil: Frere, Esteban. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos
Fil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Wildlife Conservation Society; Estados Unidos. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Wilson, Rory P. Swansea University; Reino Unido
description Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. When breeding in sympatry there was little overlap in the foraging locations of the two species, with the highest densities of each species separated by 10 km. Red-legged Cormorants fed significantly closer to the breeding colony than did Rock Shags and undertook shorter foraging trips, making almost twice as many foraging trips per day as Rock Shags. Rock Shags breeding in isolation had a shorter foraging range than the birds breeding in sympatry with Red-legged Cormorants and foraging trip duration was significantly shorter. However, the number of feeding trips per day was similar between areas of sympatry and allopatry. Differences in the foraging ecology of Rock Shags in areas of sympatry and allopatry may be due to interspecific competition, which forces niche differentiation. The distance between foraging sites, the speed of movement of the prey, a species tendency to move into prey-depleted areas and the length of the breeding season (during which the birds are constrained to be in the same area) may play critical roles in determining the extent to which differential area use by competitors is a strategy that benefits both parties.
publishDate 2008
dc.date.none.fl_str_mv 2008-07
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/11336/100490
Frere, Esteban; Quintana, Flavio Roberto; Gandini, Patricia Alejandra; Wilson, Rory P; Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina; Wiley Blackwell Publishing, Inc; Ibis; 150; 3; 7-2008; 558-564
0019-1019
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100490
identifier_str_mv Frere, Esteban; Quintana, Flavio Roberto; Gandini, Patricia Alejandra; Wilson, Rory P; Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina; Wiley Blackwell Publishing, Inc; Ibis; 150; 3; 7-2008; 558-564
0019-1019
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1474-919X.2008.00824.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1474-919X.2008.00824.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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
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)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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
_version_ 1842269120657096704
score 13.13397

Publicaciones similares