Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina

We studied the diet of the Burrowing Owl (Athene cunicularia) in two areas with different land use in the central sector of the Monte de Llanuras y Mesetas Ecoregion, La Pampa Province, Argentina: a protected area (Lihué Calel National Park) and an intensively grazed cattle ranch (La Manuela). We id...

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Detalles Bibliográficos
Autores principales:	Callicó Fortunato, Roberta, Pereira, Javier Adolfo
Publicado:	2009
Materias:	Food habits Monte de llanuras y mesetas Small mammals Strigidae Strigiformes Athene cunicularia Bos Coleoptera Mammalia Rodentia Scorpiones Speotyto cunicularia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00733407_v24_n2_p87_deTommaso http://hdl.handle.net/20.500.12110/paper_00733407_v24_n2_p87_deTommaso
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00733407_v24_n2_p87_deTommaso
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spelling	paper:paper_00733407_v24_n2_p87_deTommaso2023-06-08T15:06:36Z Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina Callicó Fortunato, Roberta Pereira, Javier Adolfo Food habits Monte de llanuras y mesetas Small mammals Strigidae Strigiformes Athene cunicularia Bos Coleoptera Mammalia Rodentia Scorpiones Speotyto cunicularia Strigidae Strigiformes We studied the diet of the Burrowing Owl (Athene cunicularia) in two areas with different land use in the central sector of the Monte de Llanuras y Mesetas Ecoregion, La Pampa Province, Argentina: a protected area (Lihué Calel National Park) and an intensively grazed cattle ranch (La Manuela). We identified 1251 prey items, mainly corresponding to Coleoptera, Scorpiones and Rodentia. In both areas the Burrowing Owl was a generalist feeder. The frequency of the different prey items in the diet varied significantly between areas, both during the reproductive and the non-reproductive seasons. However, the mean weight of ingested small mammals and the standardized trophic niche breadth were similar between areas and to those reported for this species in other sectors of the Monte de Llanuras y Mesetas Ecoregion. According to the ingested biomass, the Burrowing Owl behaved as a carnivorous predator during the reproductive season and as carnivorous-insectivorous during the non-reproductive one. Fil:Callicó Fortunato, R.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pereira, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00733407_v24_n2_p87_deTommaso http://hdl.handle.net/20.500.12110/paper_00733407_v24_n2_p87_deTommaso
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Food habits Monte de llanuras y mesetas Small mammals Strigidae Strigiformes Athene cunicularia Bos Coleoptera Mammalia Rodentia Scorpiones Speotyto cunicularia Strigidae Strigiformes
spellingShingle	Food habits Monte de llanuras y mesetas Small mammals Strigidae Strigiformes Athene cunicularia Bos Coleoptera Mammalia Rodentia Scorpiones Speotyto cunicularia Strigidae Strigiformes Callicó Fortunato, Roberta Pereira, Javier Adolfo Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
topic_facet	Food habits Monte de llanuras y mesetas Small mammals Strigidae Strigiformes Athene cunicularia Bos Coleoptera Mammalia Rodentia Scorpiones Speotyto cunicularia Strigidae Strigiformes
description	We studied the diet of the Burrowing Owl (Athene cunicularia) in two areas with different land use in the central sector of the Monte de Llanuras y Mesetas Ecoregion, La Pampa Province, Argentina: a protected area (Lihué Calel National Park) and an intensively grazed cattle ranch (La Manuela). We identified 1251 prey items, mainly corresponding to Coleoptera, Scorpiones and Rodentia. In both areas the Burrowing Owl was a generalist feeder. The frequency of the different prey items in the diet varied significantly between areas, both during the reproductive and the non-reproductive seasons. However, the mean weight of ingested small mammals and the standardized trophic niche breadth were similar between areas and to those reported for this species in other sectors of the Monte de Llanuras y Mesetas Ecoregion. According to the ingested biomass, the Burrowing Owl behaved as a carnivorous predator during the reproductive season and as carnivorous-insectivorous during the non-reproductive one.
author	Callicó Fortunato, Roberta Pereira, Javier Adolfo
author_facet	Callicó Fortunato, Roberta Pereira, Javier Adolfo
author_sort	Callicó Fortunato, Roberta
title	Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
title_short	Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
title_full	Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
title_fullStr	Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
title_full_unstemmed	Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina
title_sort	diet of the burrowing owl (athene cunicularia) in two areas with different land use in south-central la pampa province, argentina
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00733407_v24_n2_p87_deTommaso http://hdl.handle.net/20.500.12110/paper_00733407_v24_n2_p87_deTommaso
work_keys_str_mv	AT callicofortunatoroberta dietoftheburrowingowlathenecuniculariaintwoareaswithdifferentlanduseinsouthcentrallapampaprovinceargentina AT pereirajavieradolfo dietoftheburrowingowlathenecuniculariaintwoareaswithdifferentlanduseinsouthcentrallapampaprovinceargentina
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Diet of the burrowing owl (Athene cunicularia) in two areas with different land use in south-central La Pampa Province, Argentina

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