Intraspecific variation in space use, group size, and mating systems of caviomorph rodents.

Journal of Mammalogy
Christine R Maher, Joseph R Burger

Abstract

Intraspecific variation in social systems is widely recognized across many taxa, and specific models, including polygamy potential, resource defense, and resource dispersion, have been developed to explain the relationship between ecological variation and social organization. Although mammals from temperate North America and Eurasia have provided many insights into this relationship, rodents from the Neotropics and temperate South America have largely been ignored. In this review we focus on reports documenting intraspecific variation in spacing systems, group size, and mating systems of caviomorphs. This large group of New World hystricognath rodents occupies a diverse array of habitats; thus, members of the same species potentially exhibit different social systems in response to different ecological conditions. Spatial patterns vary in response to a diverse array of factors, including predation, food availability, population density, and soil characteristics. Changes in group size typically correlate with changes in resource availability, particularly food. Mating systems generally reflect the ability of males to control access to females, which may depend on population density or food distribution. In general, social organiz...Continue Reading

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Citations

Feb 22, 2012·Behavioral Ecology and Sociobiology·Luis A EbenspergerLoren D Hayes
Apr 10, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Peter M KappelerTim H Clutton-Brock
Apr 10, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Carsten Schradin
Jul 23, 2011·Hormones and Behavior·Luis A EbenspergerLoren D Hayes
Mar 23, 2013·General and Comparative Endocrinology·Carolyn M BauerLoren D Hayes
Feb 14, 2012·Journal of Mammalogy·Loren D HayesLuis A Ebensperger
Apr 14, 2017·Scientific Reports·Richard C ConnorMichael Krützen
May 13, 2021·BMC Ecology and Evolution·Mickaël JacquierSandrine Ruette
Jun 30, 2021·Evolution; International Journal of Organic Evolution·Bahar PatlarAlberto Civetta

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