Dominance relations among adult females in a free‐ranging group of Japanese monkeys at Katsuyama

Abstract

Dominance relations among adult females in the Katsuyama group of Japanese monkeys (Macaca fuscata) were analyzed. Dominance relations among female relatives of 6 or more years of age corresponded almost exactly to those predicted by Kawamura's principles [Primates, 1:149-156,19581 in the four highest-ranking kin-groups. According to these principles, 1) a mother is dominant to her daughter and 2) among sisters, the younger is dominant to the older. However, 9 of the remaining 11 middleand low-ranking kin-groups included dyads in which dominance relations did not correspond to those expected from Kawamura's principles. Within the dominance rank order, of all 74 adult females of 6 or more years of age, individuals of the high-ranking kin-groups always ranked adjacent to members of their own kin-group, while individuals in middle-and lowranking kin-groups tended to be ranked independently of members of their own kin-groups. These results indicate that, since females of a high-ranking kin-group form a cohesive matrilineal unit, it may be very difficult for females of other kin-groups to break into the dominance rank order that exists among females of the high-ranking kin-groups. o 1995 Wiley-Liss, Inc.

A comparative network analysis of social style in macaques

“…density of transitive triples in a network). Following previous indications that top-ranking individuals are the most frequently groomed individuals in more intolerant species (Schino 2001;Nakamichi & Shizawa 2003;Silk et al 2003), we further predicted that the centrality of top-ranking individuals (i.e. the degree of association between conspecifics) would be higher in intolerant species than in tolerant ones.…”

“…In general, lower-ranking individuals are seen to groom and exchange body contacts more often with higher-ranking individuals, especially with the top-ranking male (Schino 2001;Nakamichi & Shizawa 2003;Silk et al 2003). However, neither the dominanceecentrality coefficient nor the distribution of eigenvector coefficients supported the finding that top-ranking individuals were more central in tolerant than in intolerant macaques.…”

“…The correlation between the kin ratio and the mean eigenvector coefficient indicates that the more individuals were related in a group, the more central certain individuals were. Individuals are indeed more connected to each other in highly kin-related groups, with particular links to individuals linking matrilines, which are often the most dominant or the oldest ones (Schino 2001;Nakamichi & Shizawa 2003;Silk et al 2003Silk et al , 2009King et al 2008).…”

Scalar social dynamics in female vervet monkey cohorts

“…In cercopithecines, adult females are only able to groom across the entire female cohort (i.e. the total number of females in the group) when this is below some threshold size [3][4][5]. Beyond this, the size of a female's grooming clique (the number of other females she grooms) tends to remain relatively constant as cohort size increases, even in captive groups [5].…”

“…the total number of females in the group) when this is below some threshold size [3][4][5]. Beyond this, the size of a female's grooming clique (the number of other females she grooms) tends to remain relatively constant as cohort size increases, even in captive groups [5]. This raises the question of whether these asymptotic grooming clique sizes are, as in humans, associated with some form of internal reorganization [3] as an adaptive response to the difficulties of coordination [2] (so demonstrating that linguistic mediation is not necessary), or whether females simply strive to preserve valuable associations in the absence of any internal reorganization?…”