Macaque societies are typically characterized by despotic dominance styles and strong bonds between related individuals. Interspecies variation in dominance style, however, has been recently documented. This study investigated whether kinship effects on social interactions vary depending on the species dominance style. Reconciliation was chosen as as a measure of relationship quality between group members. Groups of Japanese (Macaca fuscata) and long-tailed (M. fascicularis) macaques were selected for their highly despotic style, and Barbary (M. sylvanus) macaques were chosen for their lower level of despotism. The findings confirmed the hypothesis that kinship effects on reconciliation are stronger the more despotic the species is. Barbary macaque nonkin reconciled more often than nonkin of the other 2 species. In addition, the differences in reconciliation frequency between kin and nonkin were less pronounced among the less despotic Barbary macaques.
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