A review of the trophic ecology of the Barn Owl in Argentina

I reviewed the literature on the trophic ecology of the Barn Owl (Tyto alba) in 40 areas of Argentina representing seven vegetation types in the species' range. Mammals (rodents, marsupials and bats) represented an average of 90.2 ± 13.6% (±SD) of the total prey found in pellets, and most mamma...

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Detalles Bibliográficos
Autor principal:	Bellocq, Maria Isabel
Publicado:	2000
Materias:	Argentina Barn Owl Diet Trophic ecology Tyto alba diet food selection raptor
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08921016_v34_n2_p108_Bellocq http://hdl.handle.net/20.500.12110/paper_08921016_v34_n2_p108_Bellocq
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_08921016_v34_n2_p108_Bellocq
record_format	dspace
spelling	paper:paper_08921016_v34_n2_p108_Bellocq2023-06-08T15:47:18Z A review of the trophic ecology of the Barn Owl in Argentina Bellocq, Maria Isabel Argentina Barn Owl Diet Trophic ecology Tyto alba diet food selection raptor Argentina Tyto alba I reviewed the literature on the trophic ecology of the Barn Owl (Tyto alba) in 40 areas of Argentina representing seven vegetation types in the species' range. Mammals (rodents, marsupials and bats) represented an average of 90.2 ± 13.6% (±SD) of the total prey found in pellets, and most mammalian prey were sigmodontine rodents (77.0 ± 19.6%). Birds were the most common secondary prey, and insects, reptiles and amphibians were negligible in the diet. The number of mammalian genera found in pellets (dietary richness) was similar among vegetation types but higher in subtropical than in temperate regions, showing a negative correlation with latitude. Mean weight of dominant prey species ranged from 12.6-326.0 g. Average food niche breadth (FNB) was similar in subtropical (4.07) and temperate (4.03) regions. Standardized FNB was 0.33 ± 0.16 and it was similar among vegetation types but lower in subtropical than in temperate regions. The diet of Barn Owls may reflect some human alterations to the habitat. Fil:Bellocq, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08921016_v34_n2_p108_Bellocq http://hdl.handle.net/20.500.12110/paper_08921016_v34_n2_p108_Bellocq
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Barn Owl Diet Trophic ecology Tyto alba diet food selection raptor Argentina Tyto alba
spellingShingle	Argentina Barn Owl Diet Trophic ecology Tyto alba diet food selection raptor Argentina Tyto alba Bellocq, Maria Isabel A review of the trophic ecology of the Barn Owl in Argentina
topic_facet	Argentina Barn Owl Diet Trophic ecology Tyto alba diet food selection raptor Argentina Tyto alba
description	I reviewed the literature on the trophic ecology of the Barn Owl (Tyto alba) in 40 areas of Argentina representing seven vegetation types in the species' range. Mammals (rodents, marsupials and bats) represented an average of 90.2 ± 13.6% (±SD) of the total prey found in pellets, and most mammalian prey were sigmodontine rodents (77.0 ± 19.6%). Birds were the most common secondary prey, and insects, reptiles and amphibians were negligible in the diet. The number of mammalian genera found in pellets (dietary richness) was similar among vegetation types but higher in subtropical than in temperate regions, showing a negative correlation with latitude. Mean weight of dominant prey species ranged from 12.6-326.0 g. Average food niche breadth (FNB) was similar in subtropical (4.07) and temperate (4.03) regions. Standardized FNB was 0.33 ± 0.16 and it was similar among vegetation types but lower in subtropical than in temperate regions. The diet of Barn Owls may reflect some human alterations to the habitat.
author	Bellocq, Maria Isabel
author_facet	Bellocq, Maria Isabel
author_sort	Bellocq, Maria Isabel
title	A review of the trophic ecology of the Barn Owl in Argentina
title_short	A review of the trophic ecology of the Barn Owl in Argentina
title_full	A review of the trophic ecology of the Barn Owl in Argentina
title_fullStr	A review of the trophic ecology of the Barn Owl in Argentina
title_full_unstemmed	A review of the trophic ecology of the Barn Owl in Argentina
title_sort	review of the trophic ecology of the barn owl in argentina
publishDate	2000
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08921016_v34_n2_p108_Bellocq http://hdl.handle.net/20.500.12110/paper_08921016_v34_n2_p108_Bellocq
work_keys_str_mv	AT bellocqmariaisabel areviewofthetrophicecologyofthebarnowlinargentina AT bellocqmariaisabel reviewofthetrophicecologyofthebarnowlinargentina
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A review of the trophic ecology of the Barn Owl in Argentina

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