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Abstract:

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.

Registro:

Documento: Artículo
Título:Capybara social structure and dispersal patterns: Variations on a theme
Autor:Herrera, E.A.; Salas, V.; Congdon, E.R.; Corriale, M.J.; Tang-Martínez, Z.
Filiación:Departamento de Estudios Ambientales, Universidad Simón Bolívar, Apartado 89000, Caracas 1080-A, Venezuela
Asociación Civil Bioparques, Avenida Este, Edificio Imperial, Oficina 7-B, La Candelaria, Caracas, Venezuela
Moka Wildlife Center, Bioko Biodiversity Protection Program, Drexel University, 3200 Chestnut Street, Philadelphia, PA 19104, United States
Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires (C1428EHA), Argentina
Department of Biology, University of Missouri-St. Louis, 1 University Boulevard, St. Louis, MO 63121, United States
Palabras clave:Capybaras; Dispersal; Hydrochoerus hydrochaeris; Intraspecific variation; Social structure; dispersal; dominance; intraspecific variation; rodent; savanna; seasonal variation; social behavior; social structure; Animalia; Hydrochaeris hydrochaeris; Hystricognathi
Año:2011
Volumen:92
Número:1
Página de inicio:12
Página de fin:20
DOI: http://dx.doi.org/10.1644/09-MAMM-S-420.1
Título revista:Journal of Mammalogy
Título revista abreviado:J. Mammal.
ISSN:00222372
CODEN:JOMAA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00222372_v92_n1_p12_Herrera.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222372_v92_n1_p12_Herrera

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Citas:

---------- APA ----------
Herrera, E.A., Salas, V., Congdon, E.R., Corriale, M.J. & Tang-Martínez, Z. (2011) . Capybara social structure and dispersal patterns: Variations on a theme. Journal of Mammalogy, 92(1), 12-20.
http://dx.doi.org/10.1644/09-MAMM-S-420.1
---------- CHICAGO ----------
Herrera, E.A., Salas, V., Congdon, E.R., Corriale, M.J., Tang-Martínez, Z. "Capybara social structure and dispersal patterns: Variations on a theme" . Journal of Mammalogy 92, no. 1 (2011) : 12-20.
http://dx.doi.org/10.1644/09-MAMM-S-420.1
---------- MLA ----------
Herrera, E.A., Salas, V., Congdon, E.R., Corriale, M.J., Tang-Martínez, Z. "Capybara social structure and dispersal patterns: Variations on a theme" . Journal of Mammalogy, vol. 92, no. 1, 2011, pp. 12-20.
http://dx.doi.org/10.1644/09-MAMM-S-420.1
---------- VANCOUVER ----------
Herrera, E.A., Salas, V., Congdon, E.R., Corriale, M.J., Tang-Martínez, Z. Capybara social structure and dispersal patterns: Variations on a theme. J. Mammal. 2011;92(1):12-20.
http://dx.doi.org/10.1644/09-MAMM-S-420.1