Capybara social structure and dispersal patterns: Variations on a theme

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Capybaras, (Hydrochoerus hydrochaeris) are large, herbivorous New World hystricomorphs, common in the seasonally flooded savannas of tropical and subtropical South America. In this paper we review the social structure and dynamics of capybaras across much of their geographic range. Wherever they hav...

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Autores principales: Herrera, E.A., Salas, V., Congdon, E.R., Corriale, M.J., Tang-Martínez, Z.
Formato: Artículo publishedVersion
Publicado: 2011
Materias:
Capybaras
Dispersal
Hydrochoerus hydrochaeris
Intraspecific variation
Social structure
dispersal
dominance
intraspecific variation
rodent
savanna
seasonal variation
social behavior
social structure
Animalia
Hydrochaeris hydrochaeris
Hystricognathi
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222372_v92_n1_p12_Herrera
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00222372_v92_n1_p12_Herrera_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_00222372_v92_n1_p12_Herrera_oai
record_format dspace
spelling I28-R145-paper_00222372_v92_n1_p12_Herrera_oai2020-10-19 Herrera, E.A. Salas, V. Congdon, E.R. Corriale, M.J. Tang-Martínez, Z. 2011 Capybaras, (Hydrochoerus hydrochaeris) are large, herbivorous New World hystricomorphs, common in the seasonally flooded savannas of tropical and subtropical South America. In this paper we review the social structure and dynamics of capybaras across much of their geographic range. Wherever they have been studied capybaras live in groups. Capybara groups are stable social units composed of adult males and females (sex ratio biased toward females) with their young. A linear dominance hierarchy characterizes interactions among males, and the dominant male obtains most matings. Group sizes range from 6 to 16 adult members and vary with habitat characteristics and population density. At higher densities group sizes and the proportion of floaters (apparently unaffiliated animals; mostly males) increase. In 1 low-density location dispersal appears to occur in groups of both sexes, whereas in another location, where density is higher, males disperse and females are philopatric. We also discuss more conceptual issues (mostly proximate and ultimate mechanisms) that relate to intraspecific variation in social behavior in general, and capybaras in particular. © 2011 American Society of Mammalogists. Fil:Corriale, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00222372_v92_n1_p12_Herrera info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J. Mammal. 2011;92(1):12-20 Capybaras Dispersal Hydrochoerus hydrochaeris Intraspecific variation Social structure dispersal dominance intraspecific variation rodent savanna seasonal variation social behavior social structure Animalia Hydrochaeris hydrochaeris Hystricognathi Capybara social structure and dispersal patterns: Variations on a theme info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00222372_v92_n1_p12_Herrera_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 Capybaras
Dispersal
Hydrochoerus hydrochaeris
Intraspecific variation
Social structure
dispersal
dominance
intraspecific variation
rodent
savanna
seasonal variation
social behavior
social structure
Animalia
Hydrochaeris hydrochaeris
Hystricognathi
spellingShingle Capybaras
Dispersal
Hydrochoerus hydrochaeris
Intraspecific variation
Social structure
dispersal
dominance
intraspecific variation
rodent
savanna
seasonal variation
social behavior
social structure
Animalia
Hydrochaeris hydrochaeris
Hystricognathi
Herrera, E.A.
Salas, V.
Congdon, E.R.
Corriale, M.J.
Tang-Martínez, Z.
Capybara social structure and dispersal patterns: Variations on a theme
topic_facet Capybaras
Dispersal
Hydrochoerus hydrochaeris
Intraspecific variation
Social structure
dispersal
dominance
intraspecific variation
rodent
savanna
seasonal variation
social behavior
social structure
Animalia
Hydrochaeris hydrochaeris
Hystricognathi
description Capybaras, (Hydrochoerus hydrochaeris) are large, herbivorous New World hystricomorphs, common in the seasonally flooded savannas of tropical and subtropical South America. In this paper we review the social structure and dynamics of capybaras across much of their geographic range. Wherever they have been studied capybaras live in groups. Capybara groups are stable social units composed of adult males and females (sex ratio biased toward females) with their young. A linear dominance hierarchy characterizes interactions among males, and the dominant male obtains most matings. Group sizes range from 6 to 16 adult members and vary with habitat characteristics and population density. At higher densities group sizes and the proportion of floaters (apparently unaffiliated animals; mostly males) increase. In 1 low-density location dispersal appears to occur in groups of both sexes, whereas in another location, where density is higher, males disperse and females are philopatric. We also discuss more conceptual issues (mostly proximate and ultimate mechanisms) that relate to intraspecific variation in social behavior in general, and capybaras in particular. © 2011 American Society of Mammalogists.
format Artículo
Artículo
publishedVersion
author Herrera, E.A.
Salas, V.
Congdon, E.R.
Corriale, M.J.
Tang-Martínez, Z.
author_facet Herrera, E.A.
Salas, V.
Congdon, E.R.
Corriale, M.J.
Tang-Martínez, Z.
author_sort Herrera, E.A.
title Capybara social structure and dispersal patterns: Variations on a theme
title_short Capybara social structure and dispersal patterns: Variations on a theme
title_full Capybara social structure and dispersal patterns: Variations on a theme
title_fullStr Capybara social structure and dispersal patterns: Variations on a theme
title_full_unstemmed Capybara social structure and dispersal patterns: Variations on a theme
title_sort capybara social structure and dispersal patterns: variations on a theme
publishDate 2011
url http://hdl.handle.net/20.500.12110/paper_00222372_v92_n1_p12_Herrera
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00222372_v92_n1_p12_Herrera_oai
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AT congdoner capybarasocialstructureanddispersalpatternsvariationsonatheme
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AT tangmartinezz capybarasocialstructureanddispersalpatternsvariationsonatheme
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