Abstract
The reproductive success (RS) of 32 males in a captive group of rhesus macaques (Macaca mulatta) between 1978 and 1992 was determined using paternity exclusion analysis. Dominance rank of each male over age 4 was assessed at the end of each breeding season based on agonistic dyadic interactions. The dominance rank and RS of these males were strongly correlated whether or not subadult males were included. The high reproductive success of males that eventually reached alpha rank is primarily responsible for this outcome. These results support the theory that social dominance has evolved in genusMacaca by sexual selection but some changes in male dominance rank and RS during the 15-year period suggest that priority of access is not the sole focus for such selection.
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