Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina

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We report results of dietary analyses of Akodon azarae and Calomys laucha and of food availability in corn fields and their borders in the Pampean region of central Argentina. Sampling was conducted at different developmental crop stages, in order to assess the influence of food availability on diet...

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Detalles Bibliográficos
Autores principales: Bilenca, D.N., Kravetz, F.O., Zuleta, G.A.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 1992
Materias:
agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_Bilenca
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paperaa:paper_00251461_v56_n3_p371_Bilenca2023-06-12T16:45:04Z Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina Mammalia 1992;56(3):371-384 Bilenca, D.N. Kravetz, F.O. Zuleta, G.A. agroecosystem feeding Argentina, Pampas Akodon azarae Calomys laucha Cricetidae We report results of dietary analyses of Akodon azarae and Calomys laucha and of food availability in corn fields and their borders in the Pampean region of central Argentina. Sampling was conducted at different developmental crop stages, in order to assess the influence of food availability on diet and reproductive performance. Both species were generalistic and opportunistic feeders, but differed in food habits and nutritional requirements for reproduction : A azarae had omnivorous diets and its breeding activity was related to high requirements of insects, whereas C. laucha was mainly an herbivorous-granivorous feeder and required high amounts of green forage to improve its reproductive performance. We discuss the role that food availability may play as a potential factor for competitive interactions at the different crop stages, regarding the changes in abundance of both species and their differences in diet, competitive ability, habitat preferences and colonizing potential. © 1992, Walter de Gruyter. All rights reserved. Fil:Bilenca, D.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kravetz, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Zuleta, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1992 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_Bilenca
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
spellingShingle agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
Bilenca, D.N.
Kravetz, F.O.
Zuleta, G.A.
Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
topic_facet agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
description We report results of dietary analyses of Akodon azarae and Calomys laucha and of food availability in corn fields and their borders in the Pampean region of central Argentina. Sampling was conducted at different developmental crop stages, in order to assess the influence of food availability on diet and reproductive performance. Both species were generalistic and opportunistic feeders, but differed in food habits and nutritional requirements for reproduction : A azarae had omnivorous diets and its breeding activity was related to high requirements of insects, whereas C. laucha was mainly an herbivorous-granivorous feeder and required high amounts of green forage to improve its reproductive performance. We discuss the role that food availability may play as a potential factor for competitive interactions at the different crop stages, regarding the changes in abundance of both species and their differences in diet, competitive ability, habitat preferences and colonizing potential. © 1992, Walter de Gruyter. All rights reserved.
format Artículo
Artículo
publishedVersion
author Bilenca, D.N.
Kravetz, F.O.
Zuleta, G.A.
author_facet Bilenca, D.N.
Kravetz, F.O.
Zuleta, G.A.
author_sort Bilenca, D.N.
title Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title_short Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title_full Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title_fullStr Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title_full_unstemmed Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title_sort food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
publishDate 1992
url http://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_Bilenca
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