Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?

Autores
Castillo, Diego Fabián; Birochio, Diego Enrique; Lucherini, Mauro; Casanave, Emma Beatriz
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We compared the diet of adult Pampas foxes (Lycalopex gymnocercus) and their cubs in a Pampas grassland area of Argentina by analysing 152 scats (adults: 92, cubs: 60). We used an Index of Relative Importance (IRI) to determine the contribution of prey items to the diet. IRI scores for rodents, hares and birds were higher for cubs, whereas adults consumed grasshoppers and larvae more often than cubs did. Fruits and carrion of ungulates were consumed only by adults. Both the number of items per scat and diet diversity were smaller for cubs than adults. We conclude that the Pampas fox behaves as a typical central place forager, with fruits and insects being probably consumed on the spot (with low foraging costs) and rodents, birds and hares being brought to the den for the cubs. © Finnish Zoological and Botanical Publishing Board 2011.
Fil: Castillo, Diego Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Birochio, Diego Enrique. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Lucherini, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Casanave, Emma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Materia
Lycalopex Gymnocercus
Diet
Pampas
Foraging
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:11336/66532
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?Castillo, Diego FabiánBirochio, Diego EnriqueLucherini, MauroCasanave, Emma BeatrizLycalopex GymnocercusDietPampasForaginghttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We compared the diet of adult Pampas foxes (Lycalopex gymnocercus) and their cubs in a Pampas grassland area of Argentina by analysing 152 scats (adults: 92, cubs: 60). We used an Index of Relative Importance (IRI) to determine the contribution of prey items to the diet. IRI scores for rodents, hares and birds were higher for cubs, whereas adults consumed grasshoppers and larvae more often than cubs did. Fruits and carrion of ungulates were consumed only by adults. Both the number of items per scat and diet diversity were smaller for cubs than adults. We conclude that the Pampas fox behaves as a typical central place forager, with fruits and insects being probably consumed on the spot (with low foraging costs) and rodents, birds and hares being brought to the den for the cubs. © Finnish Zoological and Botanical Publishing Board 2011.Fil: Castillo, Diego Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; ArgentinaFil: Birochio, Diego Enrique. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; ArgentinaFil: Lucherini, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; ArgentinaFil: Casanave, Emma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; ArgentinaFinnish Zoological Botanical Publishing Board2011-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66532Castillo, Diego Fabián; Birochio, Diego Enrique; Lucherini, Mauro; Casanave, Emma Beatriz; Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?; Finnish Zoological Botanical Publishing Board; Annales Zoologici Fennici; 48; 4; 8-2011; 251-2560003-455XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5735/086.048.0406info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.5735/086.048.0406info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:16Zoai:ri.conicet.gov.ar:11336/66532instacron: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 10:10:17.164CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
title Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
spellingShingle Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
Castillo, Diego Fabián
Lycalopex Gymnocercus
Diet
Pampas
Foraging
title_short Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
title_full Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
title_fullStr Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
title_full_unstemmed Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
title_sort Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?
dc.creator.none.fl_str_mv Castillo, Diego Fabián
Birochio, Diego Enrique
Lucherini, Mauro
Casanave, Emma Beatriz
author Castillo, Diego Fabián
author_facet Castillo, Diego Fabián
Birochio, Diego Enrique
Lucherini, Mauro
Casanave, Emma Beatriz
author_role author
author2 Birochio, Diego Enrique
Lucherini, Mauro
Casanave, Emma Beatriz
author2_role author
author
author
dc.subject.none.fl_str_mv Lycalopex Gymnocercus
Diet
Pampas
Foraging
topic Lycalopex Gymnocercus
Diet
Pampas
Foraging
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We compared the diet of adult Pampas foxes (Lycalopex gymnocercus) and their cubs in a Pampas grassland area of Argentina by analysing 152 scats (adults: 92, cubs: 60). We used an Index of Relative Importance (IRI) to determine the contribution of prey items to the diet. IRI scores for rodents, hares and birds were higher for cubs, whereas adults consumed grasshoppers and larvae more often than cubs did. Fruits and carrion of ungulates were consumed only by adults. Both the number of items per scat and diet diversity were smaller for cubs than adults. We conclude that the Pampas fox behaves as a typical central place forager, with fruits and insects being probably consumed on the spot (with low foraging costs) and rodents, birds and hares being brought to the den for the cubs. © Finnish Zoological and Botanical Publishing Board 2011.
Fil: Castillo, Diego Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Birochio, Diego Enrique. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Lucherini, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
Fil: Casanave, Emma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; Argentina
description We compared the diet of adult Pampas foxes (Lycalopex gymnocercus) and their cubs in a Pampas grassland area of Argentina by analysing 152 scats (adults: 92, cubs: 60). We used an Index of Relative Importance (IRI) to determine the contribution of prey items to the diet. IRI scores for rodents, hares and birds were higher for cubs, whereas adults consumed grasshoppers and larvae more often than cubs did. Fruits and carrion of ungulates were consumed only by adults. Both the number of items per scat and diet diversity were smaller for cubs than adults. We conclude that the Pampas fox behaves as a typical central place forager, with fruits and insects being probably consumed on the spot (with low foraging costs) and rodents, birds and hares being brought to the den for the cubs. © Finnish Zoological and Botanical Publishing Board 2011.
publishDate 2011
dc.date.none.fl_str_mv 2011-08
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/11336/66532
Castillo, Diego Fabián; Birochio, Diego Enrique; Lucherini, Mauro; Casanave, Emma Beatriz; Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?; Finnish Zoological Botanical Publishing Board; Annales Zoologici Fennici; 48; 4; 8-2011; 251-256
0003-455X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66532
identifier_str_mv Castillo, Diego Fabián; Birochio, Diego Enrique; Lucherini, Mauro; Casanave, Emma Beatriz; Diet of adults and cubs of Lycalopex gymnocercus in Pampas grassland: A validation of the Optimal Foraging Theory?; Finnish Zoological Botanical Publishing Board; Annales Zoologici Fennici; 48; 4; 8-2011; 251-256
0003-455X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5735/086.048.0406
info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.5735/086.048.0406
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
application/pdf
dc.publisher.none.fl_str_mv Finnish Zoological Botanical Publishing Board
publisher.none.fl_str_mv Finnish Zoological Botanical Publishing Board
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 13.13397

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