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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/84404
Ver los metadatos del registro completo
id |
CONICETDig_93a9b89684b85d232ddd1a7b7e4355fa |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/84404 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 Técnicas2025-09-03T09:43:46Zoai: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:34982025-09-03 09:43:46.792CONICET 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 |
_version_ |
1842268621652361216 |
score |
13.13397 |