Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal

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Competitive relationships between rodent species were studied in pampean agrosystems. Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens show a differential spatial distribution between cropfields and their borders in this system. The goal of this paper was to assess the r...

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Autores principales: Busch, M., Kravetz, F.O.
Formato: Artículo publishedVersion
Publicado: 1993
Materias:
competition
farmland
rodent
Akodon azarae
Calomys laucha
Calomys musculinus
Oligoryzomys flavescens
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00251461_v56_n4_p541_Busch
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00251461_v56_n4_p541_Busch_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_00251461_v56_n4_p541_Busch_oai
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spelling I28-R145-paper_00251461_v56_n4_p541_Busch_oai2024-08-16 Busch, M. Kravetz, F.O. 1993 Competitive relationships between rodent species were studied in pampean agrosystems. Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens show a differential spatial distribution between cropfields and their borders in this system. The goal of this paper was to assess the role of competition in determining spatial distributions and relative abundances of these species. A removal experiment in border habitats showed that the removal of A. azarae causes an increase in captures, survival and residency time in C. laucha and O. flavescens (as compared to control areas). Removal of C. laucha didn't cause any change in the remaining species. Results showed that competition with A. azarae limits the use of field borders by C. laucha and O. flavescens. Presence of A. azarae in border habitats prevents the establishment of residents of C. laucha and O. flavescens, thereby causing also higher mortality and lower reproductive rates in these two species than those registered when A. azarae is removed. Interspecific encounters in a test arena showed that behavioral interactions are contributing to spatial segregation, with A. azarae becoming dominant over C. laucha. © 1993, Walter de Gruyter. All rights reserved. Fil:Busch, M. 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. application/pdf http://hdl.handle.net/20.500.12110/paper_00251461_v56_n4_p541_Busch info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Mammalia 1993;56(4):541-554 competition farmland rodent Akodon azarae Calomys laucha Calomys musculinus Oligoryzomys flavescens Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00251461_v56_n4_p541_Busch_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic competition
farmland
rodent
Akodon azarae
Calomys laucha
Calomys musculinus
Oligoryzomys flavescens
spellingShingle competition
farmland
rodent
Akodon azarae
Calomys laucha
Calomys musculinus
Oligoryzomys flavescens
Busch, M.
Kravetz, F.O.
Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
topic_facet competition
farmland
rodent
Akodon azarae
Calomys laucha
Calomys musculinus
Oligoryzomys flavescens
description Competitive relationships between rodent species were studied in pampean agrosystems. Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens show a differential spatial distribution between cropfields and their borders in this system. The goal of this paper was to assess the role of competition in determining spatial distributions and relative abundances of these species. A removal experiment in border habitats showed that the removal of A. azarae causes an increase in captures, survival and residency time in C. laucha and O. flavescens (as compared to control areas). Removal of C. laucha didn't cause any change in the remaining species. Results showed that competition with A. azarae limits the use of field borders by C. laucha and O. flavescens. Presence of A. azarae in border habitats prevents the establishment of residents of C. laucha and O. flavescens, thereby causing also higher mortality and lower reproductive rates in these two species than those registered when A. azarae is removed. Interspecific encounters in a test arena showed that behavioral interactions are contributing to spatial segregation, with A. azarae becoming dominant over C. laucha. © 1993, Walter de Gruyter. All rights reserved.
format Artículo
Artículo
publishedVersion
author Busch, M.
Kravetz, F.O.
author_facet Busch, M.
Kravetz, F.O.
author_sort Busch, M.
title Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
title_short Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
title_full Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
title_fullStr Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
title_full_unstemmed Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal
title_sort competitive interactions among rodents (akodon azarae, calomys laucha, calomys musculinus and oligoryzomys flavescens) in a two-habitat system. ii. effect of species removal
publishDate 1993
url http://hdl.handle.net/20.500.12110/paper_00251461_v56_n4_p541_Busch
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00251461_v56_n4_p541_Busch_oai
work_keys_str_mv AT buschm competitiveinteractionsamongrodentsakodonazaraecalomyslauchacalomysmusculinusandoligoryzomysflavescensinatwohabitatsystemiieffectofspeciesremoval
AT kravetzfo competitiveinteractionsamongrodentsakodonazaraecalomyslauchacalomysmusculinusandoligoryzomysflavescensinatwohabitatsystemiieffectofspeciesremoval
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