Abstract
Within the field of behavioral primatology, various descriptive models of intragroup spatial structure have emerged, particularly for macaques and savannah baboons. Predictions are that monkeys avoid aggressors, are attracted to others of similar dominance rank and age, and of like sex, and prefer kin over nonkin in proximity relationships. These predictions are tested for captive groups of pigtail and stumptail macaques, using a quadratic multiple regression model, with approach as the dependent spatial variable. Results indicate a clear preference for approaching kin in both groups studied. The only other prediction confirmed is an attraction to same-sexed group members by pigtail males. Post hoc analyses of trends in the importance of the factors affecting approaches suggest that developmental trends can be more clearly understood by examining more proximal causes like dominance rank and activity level, in addition to age. The adaptive consequences of approach preferences are considered in the light of kin selection theory.
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Weigel, R.M. Dyadic spatial relationships in pigtail and stumptail macaques: A multiple regression analysis. Int J Primatol 1, 287–321 (1980). https://doi.org/10.1007/BF02692276
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DOI: https://doi.org/10.1007/BF02692276