Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis

The Patagonian culpeo fox (Dusicyon culpaeus) feeds in part on the cricetine rodent community. A previous diet study based on scats revealed that these foxes show a marked preference for 3 Akodon species (Akodon longipilis, Akodon xanthorrinus and Akodon iniscatus), in contrast with the notably more...

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Autores principales: Corley, J.C., Fernandez, G.J., Capurro, A.F., Novaro, A.J., Funes, M.C., Travaini, A.
Formato: JOUR
Materias:
culpeo fox
predation
prey preference
prey vulnerability
Argentina, Patagonia
Akodon iniscatus
Akodon longipilis
Akodon xanthorhinus
Cricetinae
Dusicyon culpaeus
Eligmodontia typus
Akodon spp.
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00251461_v59_n3_p315_Corley
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00251461_v59_n3_p315_Corley
record_format dspace
spelling todo:paper_00251461_v59_n3_p315_Corley2023-10-03T14:35:27Z Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis Corley, J.C. Fernandez, G.J. Capurro, A.F. Novaro, A.J. Funes, M.C. Travaini, A. culpeo fox predation prey preference prey vulnerability Argentina, Patagonia Akodon iniscatus Akodon longipilis Akodon xanthorhinus Cricetinae Dusicyon culpaeus Eligmodontia typus Akodon spp. The Patagonian culpeo fox (Dusicyon culpaeus) feeds in part on the cricetine rodent community. A previous diet study based on scats revealed that these foxes show a marked preference for 3 Akodon species (Akodon longipilis, Akodon xanthorrinus and Akodon iniscatus), in contrast with the notably more abundant sympatric mouse, Eligmodontia typus. For invertebrates and fish, prey selection of this sort has been often analyzed comparing differential prey vulnerability. However, this event has never been explicity studied in mammalian communities. In this paper, we have attempted to analyze the Patagonian fox's prey preferences through a field based prey vulnerability study. To do so, we compared behavioural and morphological attributes that could account for differences in the predators success (studied separately through stomach content analysis). Our results show that there are differences in the vulnerability of these prey species which are based mainly upon a greater escape ability of E. typus related to their longer hind legs. We conclude that analyses such as these, which are simple and economical, can provide interesting data on which future experimental work on carnivore prey choice may be based upon. © 1995, Walter de Gruyter. All rights reserved. Fil:Corley, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernandez, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Capurro, A.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00251461_v59_n3_p315_Corley
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic culpeo fox
predation
prey preference
prey vulnerability
Argentina, Patagonia
Akodon iniscatus
Akodon longipilis
Akodon xanthorhinus
Cricetinae
Dusicyon culpaeus
Eligmodontia typus
Akodon spp.
spellingShingle culpeo fox
predation
prey preference
prey vulnerability
Argentina, Patagonia
Akodon iniscatus
Akodon longipilis
Akodon xanthorhinus
Cricetinae
Dusicyon culpaeus
Eligmodontia typus
Akodon spp.
Corley, J.C.
Fernandez, G.J.
Capurro, A.F.
Novaro, A.J.
Funes, M.C.
Travaini, A.
Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
topic_facet culpeo fox
predation
prey preference
prey vulnerability
Argentina, Patagonia
Akodon iniscatus
Akodon longipilis
Akodon xanthorhinus
Cricetinae
Dusicyon culpaeus
Eligmodontia typus
Akodon spp.
description The Patagonian culpeo fox (Dusicyon culpaeus) feeds in part on the cricetine rodent community. A previous diet study based on scats revealed that these foxes show a marked preference for 3 Akodon species (Akodon longipilis, Akodon xanthorrinus and Akodon iniscatus), in contrast with the notably more abundant sympatric mouse, Eligmodontia typus. For invertebrates and fish, prey selection of this sort has been often analyzed comparing differential prey vulnerability. However, this event has never been explicity studied in mammalian communities. In this paper, we have attempted to analyze the Patagonian fox's prey preferences through a field based prey vulnerability study. To do so, we compared behavioural and morphological attributes that could account for differences in the predators success (studied separately through stomach content analysis). Our results show that there are differences in the vulnerability of these prey species which are based mainly upon a greater escape ability of E. typus related to their longer hind legs. We conclude that analyses such as these, which are simple and economical, can provide interesting data on which future experimental work on carnivore prey choice may be based upon. © 1995, Walter de Gruyter. All rights reserved.
format JOUR
author Corley, J.C.
Fernandez, G.J.
Capurro, A.F.
Novaro, A.J.
Funes, M.C.
Travaini, A.
author_facet Corley, J.C.
Fernandez, G.J.
Capurro, A.F.
Novaro, A.J.
Funes, M.C.
Travaini, A.
author_sort Corley, J.C.
title Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
title_short Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
title_full Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
title_fullStr Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
title_full_unstemmed Selection of cricetine prey by the culpeo fox in patagonia : A differential prey vulnerability hypothesis
title_sort selection of cricetine prey by the culpeo fox in patagonia : a differential prey vulnerability hypothesis
url http://hdl.handle.net/20.500.12110/paper_00251461_v59_n3_p315_Corley
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