Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird

Autores
Quintana, Flavio Roberto; Wilson, Rory P.; Dell'arciprete, Olga Patricia; Shepard, Emily; Gómez Laich, Agustina Marta
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Colonial seabirds are central place foragers and likely to be subject to substantial competition for resources. Mechanisms proposed for reducing intra-specific competition include differential inter-sex area use mediated by adult choice. We used GPS loggers and dive recorders to study area use and dive depth in a total of 27 male and 26 female imperial cormorants Phalacrocorax atriceps breeding at a colony of some 6500 birds at Punta Leon, Chubut, Argentina during 2004 and 2005. Although time spent travelling and distances between the colony and foraging sites were similar for both sexes, males and females travelled away from their colony using routes virtually perpendicular to each other so that their foraging areas were distinctly different; females hunted close to the coast while males foraged offshore in deeper water. Consideration of foraging efficiency underwater, defined as the duration spent on the bottom divided by the dive cycle duration, showed that females were more efficient at depths < 40 m while males more efficient at depths > 40 m. We suggest that the substantial sexual dimorphism in this species may be responsible for the different depth-linked foraging efficiencies and that selection for appropriate depths could lead to differential habitat use and putative differences in prey selection.
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: Wilson, Rory P.. Swansea University; Reino Unido
Fil: Dell'arciprete, Olga Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Shepard, Emily. Swansea University; Reino Unido
Fil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Materia
Imperial Cormorant
Sexual Dimorphism
Foraging Behaviour
Habitat Use
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:11336/84404
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabirdQuintana, Flavio RobertoWilson, Rory P.Dell'arciprete, Olga PatriciaShepard, EmilyGómez Laich, Agustina MartaImperial CormorantSexual DimorphismForaging BehaviourHabitat Usehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Colonial seabirds are central place foragers and likely to be subject to substantial competition for resources. Mechanisms proposed for reducing intra-specific competition include differential inter-sex area use mediated by adult choice. We used GPS loggers and dive recorders to study area use and dive depth in a total of 27 male and 26 female imperial cormorants Phalacrocorax atriceps breeding at a colony of some 6500 birds at Punta Leon, Chubut, Argentina during 2004 and 2005. Although time spent travelling and distances between the colony and foraging sites were similar for both sexes, males and females travelled away from their colony using routes virtually perpendicular to each other so that their foraging areas were distinctly different; females hunted close to the coast while males foraged offshore in deeper water. Consideration of foraging efficiency underwater, defined as the duration spent on the bottom divided by the dive cycle duration, showed that females were more efficient at depths < 40 m while males more efficient at depths > 40 m. We suggest that the substantial sexual dimorphism in this species may be responsible for the different depth-linked foraging efficiencies and that selection for appropriate depths could lead to differential habitat use and putative differences in prey selection.Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados UnidosFil: Wilson, Rory P.. Swansea University; Reino UnidoFil: Dell'arciprete, Olga Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Shepard, Emily. Swansea University; Reino UnidoFil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaWiley Blackwell Publishing, Inc2011-03info: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/11336/84404Quintana, Flavio Roberto; Wilson, Rory P.; Dell'arciprete, Olga Patricia; Shepard, Emily; Gómez Laich, Agustina Marta; Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird; Wiley Blackwell Publishing, Inc; Oikos; 120; 3; 3-2011; 350-3580030-1299CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1600-0706.2010.18387.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1600-0706.2010.18387.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 Técnicas2025-09-29T09:33:09Zoai:ri.conicet.gov.ar:11336/84404instacron: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:34982025-09-29 09:33:10.041CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
title Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
spellingShingle Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
Quintana, Flavio Roberto
Imperial Cormorant
Sexual Dimorphism
Foraging Behaviour
Habitat Use
title_short Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
title_full Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
title_fullStr Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
title_full_unstemmed Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
title_sort Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
dc.creator.none.fl_str_mv Quintana, Flavio Roberto
Wilson, Rory P.
Dell'arciprete, Olga Patricia
Shepard, Emily
Gómez Laich, Agustina Marta
author Quintana, Flavio Roberto
author_facet Quintana, Flavio Roberto
Wilson, Rory P.
Dell'arciprete, Olga Patricia
Shepard, Emily
Gómez Laich, Agustina Marta
author_role author
author2 Wilson, Rory P.
Dell'arciprete, Olga Patricia
Shepard, Emily
Gómez Laich, Agustina Marta
author2_role author
author
author
author
dc.subject.none.fl_str_mv Imperial Cormorant
Sexual Dimorphism
Foraging Behaviour
Habitat Use
topic Imperial Cormorant
Sexual Dimorphism
Foraging Behaviour
Habitat Use
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Colonial seabirds are central place foragers and likely to be subject to substantial competition for resources. Mechanisms proposed for reducing intra-specific competition include differential inter-sex area use mediated by adult choice. We used GPS loggers and dive recorders to study area use and dive depth in a total of 27 male and 26 female imperial cormorants Phalacrocorax atriceps breeding at a colony of some 6500 birds at Punta Leon, Chubut, Argentina during 2004 and 2005. Although time spent travelling and distances between the colony and foraging sites were similar for both sexes, males and females travelled away from their colony using routes virtually perpendicular to each other so that their foraging areas were distinctly different; females hunted close to the coast while males foraged offshore in deeper water. Consideration of foraging efficiency underwater, defined as the duration spent on the bottom divided by the dive cycle duration, showed that females were more efficient at depths < 40 m while males more efficient at depths > 40 m. We suggest that the substantial sexual dimorphism in this species may be responsible for the different depth-linked foraging efficiencies and that selection for appropriate depths could lead to differential habitat use and putative differences in prey selection.
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: Wilson, Rory P.. Swansea University; Reino Unido
Fil: Dell'arciprete, Olga Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Shepard, Emily. Swansea University; Reino Unido
Fil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
description Colonial seabirds are central place foragers and likely to be subject to substantial competition for resources. Mechanisms proposed for reducing intra-specific competition include differential inter-sex area use mediated by adult choice. We used GPS loggers and dive recorders to study area use and dive depth in a total of 27 male and 26 female imperial cormorants Phalacrocorax atriceps breeding at a colony of some 6500 birds at Punta Leon, Chubut, Argentina during 2004 and 2005. Although time spent travelling and distances between the colony and foraging sites were similar for both sexes, males and females travelled away from their colony using routes virtually perpendicular to each other so that their foraging areas were distinctly different; females hunted close to the coast while males foraged offshore in deeper water. Consideration of foraging efficiency underwater, defined as the duration spent on the bottom divided by the dive cycle duration, showed that females were more efficient at depths < 40 m while males more efficient at depths > 40 m. We suggest that the substantial sexual dimorphism in this species may be responsible for the different depth-linked foraging efficiencies and that selection for appropriate depths could lead to differential habitat use and putative differences in prey selection.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/84404
Quintana, Flavio Roberto; Wilson, Rory P.; Dell'arciprete, Olga Patricia; Shepard, Emily; Gómez Laich, Agustina Marta; Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird; Wiley Blackwell Publishing, Inc; Oikos; 120; 3; 3-2011; 350-358
0030-1299
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84404
identifier_str_mv Quintana, Flavio Roberto; Wilson, Rory P.; Dell'arciprete, Olga Patricia; Shepard, Emily; Gómez Laich, Agustina Marta; Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird; Wiley Blackwell Publishing, Inc; Oikos; 120; 3; 3-2011; 350-358
0030-1299
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.1600-0706.2010.18387.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1600-0706.2010.18387.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
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score 13.070432

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