Abstract # 13403 Poster # 89:

Scheduled for Thursday, August 22, 2019 06:00 PM-08:00 PM: (Alumni Lounge) Poster Presentation


NETWORK MEASURES IN LARGE VS. SMALL SOCIAL GROUPS OF RHESUS MACAQUES

E. Dura1, B. Beisner1,2, A. Nathman1, J. Vandeleest1 and B. McCowan1,2
1California National Primate Research Center, University of California Davis, Davis, CA 95616, USA, 2Department of Population Health & Reproduction, University of California Davis, Davis CA 95616
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     Social network techniques are valuable for understanding the dynamics of large social groups of animals (N > 30-40 subjects). For example, the 50-200 captive rhesus macaques (Macaca mulatta) in each of the outdoor corrals of the California National Primate Research Center demonstrate connections between social stability and social network structure for grooming networks (e.g., low matrilineal social cohesion correlated with incidence of in-family fighting), subordination signaling networks (e.g., animals receiving a high diversity of signals and paths of signals police conflicts more often), and the joint relationship between aggression and submission networks. Further, measures of variance in macaque social network position have been linked to variance in health, such as biomarkers of inflammation, incidence of diarrhea, hair cortisol concentration, and risk of infection. Yet the utility of social network analysis for studying variation in social dynamics and health in smaller groups of macaques is less well known. For six social groups of rhesus macaques of varying group sizes (small: N = 12 & 16; moderate: N = 54 & 60; large: N = 100 & 101), we compared network density, degree of centralization, and degree distribution for three behavioral networks: aggression, grooming, and submission. Results showed similar amounts of social structure variation in small, moderate and large groups. Small social groups can also be used as models for social network and health research.