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

Autores
Bilenca, D.N.; Kravetz, F.O.; Zuleta, G.A.
Año de publicación
1992
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fuente
Mammalia 1992;56(3):371-384
Materia
agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00251461_v56_n3_p371_Bilenca
Acceder
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oai_identifier_str paperaa:paper_00251461_v56_n3_p371_Bilenca
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentinaBilenca, D.N.Kravetz, F.O.Zuleta, G.A.agroecosystemfeedingArgentina, PampasAkodon azaraeCalomys lauchaCricetidaeWe 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.1992info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_BilencaMammalia 1992;56(3):371-384reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-04T09:48:34Zpaperaa:paper_00251461_v56_n3_p371_BilencaInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-04 09:48:36.429Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
title Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
spellingShingle Food habits of akodon azarae and calomys laucha (cricetidae, rodentia) in agroecosystems of central argentina
Bilenca, D.N.
agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
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
dc.creator.none.fl_str_mv Bilenca, D.N.
Kravetz, F.O.
Zuleta, G.A.
author Bilenca, D.N.
author_facet Bilenca, D.N.
Kravetz, F.O.
Zuleta, G.A.
author_role author
author2 Kravetz, F.O.
Zuleta, G.A.
author2_role author
author
dc.subject.none.fl_str_mv agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
topic agroecosystem
feeding
Argentina, Pampas
Akodon azarae
Calomys laucha
Cricetidae
dc.description.none.fl_txt_mv 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.
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.
publishDate 1992
dc.date.none.fl_str_mv 1992
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_Bilenca
url http://hdl.handle.net/20.500.12110/paper_00251461_v56_n3_p371_Bilenca
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Mammalia 1992;56(3):371-384
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.623145

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