A twenty-one-year study of maternal dominance and secondary sex ratio in a colony group of stumptailed macaques (Macaca arctoides)

Publication Type:Journal Article
Year of Publication:1994
Authors:Rhine, RJ
Journal:American Journal of Primatology
Volume:32
Pagination:145-148
Date Published:1994
ISBN Number:1098-2345
Keywords:Macaca arctoides
Abstract:

10.1002/ajp.1350320207.abs Trivers and Willard's theory of sex-ratio adjustment, as applied to cercopithecines, predicts that the ratio of male to female offspring will be greater for dominant than for subordinate mothers. A local-resourcexyhcompetition hypothesis predicts the reverse. To date, results from several species of macaque are inconsistent and often not statistically significant. In this 21 year study, a colony group of stumptailed macaques is added to the species previously studied. Seventy-five offspring were born to eight mothers for whom long-term dominance was established. Chi-square analyses of data from these 75 offspring failed to yield a significant relationship between sex-ratio and mother's dominance; consequently, consistent with a growing body of cercopithecine literature, neither of the competing theories was supported. © 1994 Wiley-Liss, Inc.

URL:http://dx.doi.org/10.1002/ajp.1350320207
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