Social cliques in male northern muriquis Brachyteles hypoxanthus  

作　　者：Marcos TOKUDA Jean P. BOUBLI Patricia IZAR Karen B. STRIER 

机构地区：[1]Department of Experimental Psychology, University of S~io Paulo, Av. Prof. Mello Moraes, 1721, CEP 05508-030, Sao Paulo, Brazil [2]Wildlife Conservation Society, Rio de Janeiro, Brazil [3]Department of Anthropology, University of Wisconsin-Madison, USA

出　　处：《Current Zoology》2012年第2期342-352,共11页动物学报（英文版）

摘　　要：Analyses of spatial relationships and social interactions provide insights into the social structure of animal societies and the ways in which social preferences among and between dyads affect higher order social relationships. In this paper we de- scribe the patterns of spatial associations and social interactions among adult male northern muriquis in order to evaluate the dy- namics of their social networks above the dyadic levels. Systematic observations were made on the 17 adult males present in a multi-male/multi-female group from April 2004 through February 2005, and in July 2005. Analyses of their spatial relationships identified two distinct male cliques; some adult males （called ＂N＂ males） were more connected to the females and immatures than other adult males （＂MU＂ males）, which were more connected to one another. Affiliative interactions were significantly higher among dyads belonging to the same clique than to different cliques. Although frequencies of dyadic agonistic interactions were similarly low among individuals within and between cliques, MU males appeared to be subordinate to N males. Nonetheless, there were no significant differences in the copulation rates estimated for MU males and N males. Mutual benefits of cooperation between MU and N cliques in intergroup encounters might explain their ongoing associations in the same mixed-sex group

关 键 词：Brachyteles hypoxanthus Male northern muriquis Social relationship Social clique Social network analysis 

分 类 号：P208[天文地球—地图制图学与地理信息工程] C912.1[天文地球—测绘科学与技术]