The ontogeny of social relationships with group companions among free-ranging infant rhesus monkeys I. Social networks and differentiation

Publication Type:Journal Article
Year of Publication:1982
Authors:Berman, CM
Journal:Animal Behaviour
Volume:30
Pagination:149-162
Date Published:1982
ISBN Number:0003-3472
Keywords:Macaca mulatta
Abstract:

Social networks of infant rhesus monkeys (Macaca mulatta) in a free-ranging, lineage-based group on Cayo Santiago are described by assessing the extent to which four measures of positive interaction between infants and finely-divided categories of companions are associated with (1) degree of relatedness through maternal lines; (2) sex of the companion; (3) age of the companion; and (4) dominance rank of the infant's lineage. The results suggest that the infant's social network mirrors that of its mother both in the first weeks of life and as late as 30 weeks of age. Infants have more positive social interaction with close kin than with distant kin or with unrelated individuals, and thus function as members of their lineage from the beginning. They associate more with female companions than with male companions, and more with younger immatures than with older immatures. Finally, infants in the top-ranking lineage spend more time with their own relatives than do infants in other lineages. The fact that these patterns change little as the infant gains independence from the mother supports suggestions that early maternal influence serves to pass on aspects of the mother's social network. It is suggested that the ontogeny of early social relationships resembles a process of differentiation.

URL:http://www.sciencedirect.com/science/article/pii/S0003347282802509
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith