Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina

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The effects of corn and wheat harvest on abundance, movement, disappearance, sex ratio and age structure of Akodon azarae were studied in cropfield-border systems. Sampling occurred both before and after harvest, in crops, in their weedy margins (borders) and in surrounding areas. The abundance of A...

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Autores principales: Cavia, R., Gómez Villafañe, I.E., Cittadino, E.A., Bilenca, D.N., Miño, M.H., Busch, M.
Formato: JOUR
Materias:
Agroecosystems
Akodon azarae
Cereals
Disturbance
Habitat distribution
Harvest
Movement
Rodents
abundance
cereal
harvesting
rodent
spatial distribution
Argentina
South America
Western Hemisphere
World
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01678809_v107_n1_p95_Cavia
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_01678809_v107_n1_p95_Cavia2023-10-03T15:05:29Z Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina Cavia, R. Gómez Villafañe, I.E. Cittadino, E.A. Bilenca, D.N. Miño, M.H. Busch, M. Agroecosystems Akodon azarae Cereals Disturbance Habitat distribution Harvest Movement Rodents abundance cereal harvesting rodent spatial distribution Argentina South America Western Hemisphere World Akodon azarae The effects of corn and wheat harvest on abundance, movement, disappearance, sex ratio and age structure of Akodon azarae were studied in cropfield-border systems. Sampling occurred both before and after harvest, in crops, in their weedy margins (borders) and in surrounding areas. The abundance of A. azarae decreased in fields between before and after harvest and increased along borders. Rodents moved among habitat patches, movement being higher as a consequence of harvest. There was no difference among habitats in terms of disappearance and sex ratio but changes occurred in age structure because of harvest. In response to harvest A. azarae was able to move from crops to borders, decreasing the mortality effects. The ability to respond to habitat changes allows A. azarae to maximize fitness in periodically disturbed habitats. © 2004 Elsevier B.V. All rights reserved. Fil:Cavia, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gómez Villafañe, I.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cittadino, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilenca, D.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Miño, M.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Busch, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01678809_v107_n1_p95_Cavia
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Agroecosystems
Akodon azarae
Cereals
Disturbance
Habitat distribution
Harvest
Movement
Rodents
abundance
cereal
harvesting
rodent
spatial distribution
Argentina
South America
Western Hemisphere
World
Akodon azarae
spellingShingle Agroecosystems
Akodon azarae
Cereals
Disturbance
Habitat distribution
Harvest
Movement
Rodents
abundance
cereal
harvesting
rodent
spatial distribution
Argentina
South America
Western Hemisphere
World
Akodon azarae
Cavia, R.
Gómez Villafañe, I.E.
Cittadino, E.A.
Bilenca, D.N.
Miño, M.H.
Busch, M.
Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
topic_facet Agroecosystems
Akodon azarae
Cereals
Disturbance
Habitat distribution
Harvest
Movement
Rodents
abundance
cereal
harvesting
rodent
spatial distribution
Argentina
South America
Western Hemisphere
World
Akodon azarae
description The effects of corn and wheat harvest on abundance, movement, disappearance, sex ratio and age structure of Akodon azarae were studied in cropfield-border systems. Sampling occurred both before and after harvest, in crops, in their weedy margins (borders) and in surrounding areas. The abundance of A. azarae decreased in fields between before and after harvest and increased along borders. Rodents moved among habitat patches, movement being higher as a consequence of harvest. There was no difference among habitats in terms of disappearance and sex ratio but changes occurred in age structure because of harvest. In response to harvest A. azarae was able to move from crops to borders, decreasing the mortality effects. The ability to respond to habitat changes allows A. azarae to maximize fitness in periodically disturbed habitats. © 2004 Elsevier B.V. All rights reserved.
format JOUR
author Cavia, R.
Gómez Villafañe, I.E.
Cittadino, E.A.
Bilenca, D.N.
Miño, M.H.
Busch, M.
author_facet Cavia, R.
Gómez Villafañe, I.E.
Cittadino, E.A.
Bilenca, D.N.
Miño, M.H.
Busch, M.
author_sort Cavia, R.
title Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
title_short Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
title_full Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
title_fullStr Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
title_full_unstemmed Effects of cereal harvest on abundance and spatial distribution of the rodent Akodon azarae in central Argentina
title_sort effects of cereal harvest on abundance and spatial distribution of the rodent akodon azarae in central argentina
url http://hdl.handle.net/20.500.12110/paper_01678809_v107_n1_p95_Cavia
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