Abstract # 13178 Poster # 64:

Scheduled for Thursday, August 9, 2018 06:00 PM-08:00 PM: (Chula Vista ) Poster Presentation


GROOMING NETWORK REVEALS INTERSEXUAL SOCIAL RELATIONSHIPS IN TIBETAN MACAQUES (MACACA THIBETANA)

D. Xia1,2, R. C. Kyes2, X. Wang3, B. Sun3, L. Sun4 and J. Li3,5
1School of Life Sciences, Anhui University, Hefei, Anhui 230601, USA, 2Deptartment. of Psychology and Global Health, Central for Global Field study, and Washington National Primate Research Center, University of Washington, Seattle, WA, 3School of Resources and Environmental Engineering, Anhui University, Hefei, China, 4Department of Biology, Central Washington University, Ellensburg, WA, 5School of Life Science, Hefei Normal University, Hefei, China
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     The analysis of grooming networks has been proposed as a powerful tool to describe how individuals influence each other within a network and how these relationships change overtime. Using network analysis, we investigate the dynamics of grooming network in Tibetan macaques (Macaca thibetana) based on frequency and duration to illustrate the female/male social roles and intersexual social relationships. Female Tibetan macaques have higher values of centralities whereas males would distribute in the peripheral of network with lower centralities (P < 0.05). Hierarchical cluster analysis showed that females formed clusters based on maternal kin relationship both in the mating and non-mating season (Cophenetic correlation coefficients > 0.80). However, males formed differential clusters in the network based on frequency, but not duration. Males do not form clusters with females in the mating season, whereas they formed sparsely-connected clusters with females (Cophenetic correlation coefficients > 0.80). Our results provided the extent to which the social network fluctuates over time in response to reproductive seasonality. Such variations suggest frequently but not long-duration grooming might be important for forming social clusters than long-duration but not frequently interaction. Moreover, long- or short-term male mating strategies might be involved in the shifting social relationships and networks, and thus it might be paid more attention when studying social relationships in social animals. This study was supported by NSFC (No. 31772475; 31672307).