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Sex ratio, conflict dynamics, and wounding in rhesus macaques (Macaca mulatta)

By B. A. Beisner, M. E. Jackson, A. Cameron, B. McCowan

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Abstract

Rhesus macaques, like many other primates, live in stable, multi-male multi-female groups in which adult females typically outnumber adult males. The number of males in multi-male/multi-female groups is most commonly discussed in terms of mate competition, where the sex ratio is a function of an adult male's ability to monopolize a group of females. However, the relationship between sex ratio and group stability is unclear because the presence of many males may either reduce stability by increasing mate competition or may improve stability if adult males are key conflict managers. We investigated the relationship between sex ratio, male intervention behavior, and trauma in seven groups of captive rhesus macaques. Our results show that high-ranking adult males intervene twice as frequently as adult females (P

Publication Title Applied Animal Behaviour Science
Volume 137
Issue 3
Pages 137-147
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2011.07.008
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Tags
  1. Aggression
  2. Captivity
  3. Conflict
  4. Groups
  5. Interventions
  6. Males