Patterns and Trends in Primate Pair Bonds |
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Authors: | Fuentes Agustin |
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Institution: | (1) Dept. of Anthropology, Notre Dame University, Notre Dame, Indiana, 46556-5639 |
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Abstract: | Pair-bonding may be a significant feature of the social repertoire of some primate species. However, discerning inter- and intraspecific pair bonds is problematic. I present an overview of the general behavior and ecology of species reported to occur in two-adult, pair-bonded groups. There is no two-adult grouped nonhuman primate species in Africa and only two types in Asia. Behavioral and ecological data suggest that the two-adult group or pair-bonding or both may have evolved separately 4–7 times. I propose that two pair-bond components—social pair bond and sexual pair bond—occur and can be defined and described in such a manner that facilitates comparative analysis across primate taxa. The evolution of grouping patterns in many two-adult grouped primates may be best modeled via evolutionary scenarios relying on direct dietary/energetic constraints, predation, and possibly mate-guarding. There is little support for the infanticide prevention and bodyguard hypotheses of female-choice models. |
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Keywords: | pair bond two-adult group evolution infanticide predation resource pressure |
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