The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires

Studies of carnivore diets provide essential information on ecosystem dynamics. The Pampas fox (Lycalopex gymnocercus) is an opportunistic carnivore. From the analysis of stomach content of 70 foxes we described the diet of L. gymnocercus and compared males and females in two rural areas in Buenos A...

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Detalles Bibliográficos
Publicado:	2016
Materias:	Espinal Human activity Opportunism Pampas grassland Wild canids
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v23_n2_p359_Canel http://hdl.handle.net/20.500.12110/paper_03279383_v23_n2_p359_Canel
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03279383_v23_n2_p359_Canel
record_format	dspace
spelling	paper:paper_03279383_v23_n2_p359_Canel2023-06-08T15:33:33Z The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires Espinal Human activity Opportunism Pampas grassland Wild canids Studies of carnivore diets provide essential information on ecosystem dynamics. The Pampas fox (Lycalopex gymnocercus) is an opportunistic carnivore. From the analysis of stomach content of 70 foxes we described the diet of L. gymnocercus and compared males and females in two rural areas in Buenos Aires Province, one characterized by Espinal habitat (Villarino) and the other by Pampas grassland (Azul). Diet was described using the following indices: relative frequency, frequency of occurrence, biomass contribution and relative abundance. Sexes and locations were compared with indices of diversity and dietary overlap. Our results support the hypothesis of an opportunistic diet where murine rodents were the most frequent item, while the main biomass contribution corresponded to caviomorphs, lagomorphs and carrion. These results suggest that L. gymnocercus is well adapted to rural areas with high levels of disturbance. We recorded a high dietary overlap between males and females without significant differences in prey diversity. Finally, a greater dietary diversity was observed in the Espinal, but dietary overlap was high among foxes from both regions, suggesting incipient homogenization between ecoregions due to increased human activities in these environments. © SAREM, 2016. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v23_n2_p359_Canel http://hdl.handle.net/20.500.12110/paper_03279383_v23_n2_p359_Canel
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Espinal Human activity Opportunism Pampas grassland Wild canids
spellingShingle	Espinal Human activity Opportunism Pampas grassland Wild canids The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
topic_facet	Espinal Human activity Opportunism Pampas grassland Wild canids
description	Studies of carnivore diets provide essential information on ecosystem dynamics. The Pampas fox (Lycalopex gymnocercus) is an opportunistic carnivore. From the analysis of stomach content of 70 foxes we described the diet of L. gymnocercus and compared males and females in two rural areas in Buenos Aires Province, one characterized by Espinal habitat (Villarino) and the other by Pampas grassland (Azul). Diet was described using the following indices: relative frequency, frequency of occurrence, biomass contribution and relative abundance. Sexes and locations were compared with indices of diversity and dietary overlap. Our results support the hypothesis of an opportunistic diet where murine rodents were the most frequent item, while the main biomass contribution corresponded to caviomorphs, lagomorphs and carrion. These results suggest that L. gymnocercus is well adapted to rural areas with high levels of disturbance. We recorded a high dietary overlap between males and females without significant differences in prey diversity. Finally, a greater dietary diversity was observed in the Espinal, but dietary overlap was high among foxes from both regions, suggesting incipient homogenization between ecoregions due to increased human activities in these environments. © SAREM, 2016.
title	The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
title_short	The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
title_full	The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
title_fullStr	The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
title_full_unstemmed	The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires
title_sort	diet of the pampas fox (lycalopex gymnocercus) in the province of buenos aires
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v23_n2_p359_Canel http://hdl.handle.net/20.500.12110/paper_03279383_v23_n2_p359_Canel
_version_	1768545144667111424

The diet of the pampas fox (Lycalopex gymnocercus) in the province of Buenos Aires

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