Habitat selection in population of cricetine rodents in the region delta (argentina)

We employed a live trapping grid to analyse the effect of heterogeneity habitat on dispersion of Akodon azarae, Oxymycterus rutilans and Oryzomys deificóla. The reproduction and survival of three species are associated with their residency in the grassland, avoided the use of woodland. A. azarae rep...

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Autores principales:	Piantanida, Martha Josefina, Sanchez Lopez, María Isabel
Publicado:	1991
Materias:	grassland habitat selection rodent Argentina, Delta Akodon azarae Ambrosia scabra Baccharis spicata Cortaderia selloana Lonicera japonica Oryzomys delticola Oxymycterus rutilans
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v55_n3_p339_Bonaventura http://hdl.handle.net/20.500.12110/paper_00251461_v55_n3_p339_Bonaventura
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00251461_v55_n3_p339_Bonaventura
record_format	dspace
spelling	paper:paper_00251461_v55_n3_p339_Bonaventura2023-06-08T14:52:35Z Habitat selection in population of cricetine rodents in the region delta (argentina) Piantanida, Martha Josefina Sanchez Lopez, María Isabel grassland habitat selection rodent Argentina, Delta Akodon azarae Ambrosia scabra Baccharis spicata Cortaderia selloana Lonicera japonica Oryzomys delticola Oxymycterus rutilans We employed a live trapping grid to analyse the effect of heterogeneity habitat on dispersion of Akodon azarae, Oxymycterus rutilans and Oryzomys deificóla. The reproduction and survival of three species are associated with their residency in the grassland, avoided the use of woodland. A. azarae reproductive and non-reproductive individuals preferentially use the sites dominated by Ambrosia scabra (microhabitat 1). Their residency at those sites would present nutritional advantages due to higher availability of seeds. This species begins to use other microhabitats more frequently only after the population peak. O. delticola preferentially uses the sites dominated by Lonicera japónica-Baccharis spicata (microhabitat 3). As both species present similarities in their diets, the differential use of the grassland microhabitat would contributate to diminish competitive interactions between them. O. rutilans reproductive individuals do not show preference for either microhabitat. During autumn-winter, non-reproductive individuals are more frequently captured in microhabitat 1. The important diminution herbaceous cover among Cortaderia selloana bushes (microhabitat 2) and under the dominant shrubs of microhabitat 3, led as to think that prédation could be an important factor regarding the habitat use pattern of A. azarae and O. rutilans during autumn and winter. The climbing ability of O. delticola would contribute to diminish the impact of prédation it could suffer at microhabitat 3. rabies, la fréquentation par chacune de microhabitats différents dans la prairie peut contribuer à diminuer la compétition entre elles. O. rutilans en période de reproduction ne montre pas de préférence pour Tun ou l'autre microhabitat. En automne et-hiver, les individus non reproducteurs sont plus fréquemment capturés dans le microhabitat 1. Une importante réduction du couvert herbacé entre les buissons de Cortaderia selloana (microhabitat 2) et sous les plantes dominantes du microhabitat 3, conduit à penser que la prédation peut être un facteur important d'utilisation de l'habitat d'A. azarae et de O. rutilans en automne et en hiver. L'aptitude au grimper que présente O. deificola doit contribuer à diminuer l'impact de la prédation dont il doit souffrir dans le microhabitat 3. © 1991, Walter de Gruyter. All rights reserved. Fil:Piantanida, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sanchez Lopez, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v55_n3_p339_Bonaventura http://hdl.handle.net/20.500.12110/paper_00251461_v55_n3_p339_Bonaventura
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	grassland habitat selection rodent Argentina, Delta Akodon azarae Ambrosia scabra Baccharis spicata Cortaderia selloana Lonicera japonica Oryzomys delticola Oxymycterus rutilans
spellingShingle	grassland habitat selection rodent Argentina, Delta Akodon azarae Ambrosia scabra Baccharis spicata Cortaderia selloana Lonicera japonica Oryzomys delticola Oxymycterus rutilans Piantanida, Martha Josefina Sanchez Lopez, María Isabel Habitat selection in population of cricetine rodents in the region delta (argentina)
topic_facet	grassland habitat selection rodent Argentina, Delta Akodon azarae Ambrosia scabra Baccharis spicata Cortaderia selloana Lonicera japonica Oryzomys delticola Oxymycterus rutilans
description	We employed a live trapping grid to analyse the effect of heterogeneity habitat on dispersion of Akodon azarae, Oxymycterus rutilans and Oryzomys deificóla. The reproduction and survival of three species are associated with their residency in the grassland, avoided the use of woodland. A. azarae reproductive and non-reproductive individuals preferentially use the sites dominated by Ambrosia scabra (microhabitat 1). Their residency at those sites would present nutritional advantages due to higher availability of seeds. This species begins to use other microhabitats more frequently only after the population peak. O. delticola preferentially uses the sites dominated by Lonicera japónica-Baccharis spicata (microhabitat 3). As both species present similarities in their diets, the differential use of the grassland microhabitat would contributate to diminish competitive interactions between them. O. rutilans reproductive individuals do not show preference for either microhabitat. During autumn-winter, non-reproductive individuals are more frequently captured in microhabitat 1. The important diminution herbaceous cover among Cortaderia selloana bushes (microhabitat 2) and under the dominant shrubs of microhabitat 3, led as to think that prédation could be an important factor regarding the habitat use pattern of A. azarae and O. rutilans during autumn and winter. The climbing ability of O. delticola would contribute to diminish the impact of prédation it could suffer at microhabitat 3. rabies, la fréquentation par chacune de microhabitats différents dans la prairie peut contribuer à diminuer la compétition entre elles. O. rutilans en période de reproduction ne montre pas de préférence pour Tun ou l'autre microhabitat. En automne et-hiver, les individus non reproducteurs sont plus fréquemment capturés dans le microhabitat 1. Une importante réduction du couvert herbacé entre les buissons de Cortaderia selloana (microhabitat 2) et sous les plantes dominantes du microhabitat 3, conduit à penser que la prédation peut être un facteur important d'utilisation de l'habitat d'A. azarae et de O. rutilans en automne et en hiver. L'aptitude au grimper que présente O. deificola doit contribuer à diminuer l'impact de la prédation dont il doit souffrir dans le microhabitat 3. © 1991, Walter de Gruyter. All rights reserved.
author	Piantanida, Martha Josefina Sanchez Lopez, María Isabel
author_facet	Piantanida, Martha Josefina Sanchez Lopez, María Isabel
author_sort	Piantanida, Martha Josefina
title	Habitat selection in population of cricetine rodents in the region delta (argentina)
title_short	Habitat selection in population of cricetine rodents in the region delta (argentina)
title_full	Habitat selection in population of cricetine rodents in the region delta (argentina)
title_fullStr	Habitat selection in population of cricetine rodents in the region delta (argentina)
title_full_unstemmed	Habitat selection in population of cricetine rodents in the region delta (argentina)
title_sort	habitat selection in population of cricetine rodents in the region delta (argentina)
publishDate	1991
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v55_n3_p339_Bonaventura http://hdl.handle.net/20.500.12110/paper_00251461_v55_n3_p339_Bonaventura
work_keys_str_mv	AT piantanidamarthajosefina habitatselectioninpopulationofcricetinerodentsintheregiondeltaargentina AT sanchezlopezmariaisabel habitatselectioninpopulationofcricetinerodentsintheregiondeltaargentina
_version_	1768542446458765312

Habitat selection in population of cricetine rodents in the region delta (argentina)

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