Genetic analysis of group composition and relatedness in white‐headed langurs |
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| Authors: | Zhijin LIU Chengming HUANG Qihai ZHOU Youbang Li Yuefeng WANG Ming LI Osamu TAKENAKA Akiko TAKENAKA |
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| Institution: | 1. Key Laboratory of Animal Ecology and Biological Conservation, Institute of Zoology, Chinese Academy of Sciences, , Beijing, China;2. Provincial Key Laboratory of Ecology, Guangxi Normal University, , Guangxi, China;3. Primate Research Institute, Kyoto University, , Inuyama, Japan;4. Nagoya Bunri University, , Nagoya, Japan |
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| Abstract: | We collected fecal samples of white‐headed langurs from 3 of the 4 remaining habitat fragments (Fa, Fb and CZ) located in southwestern Guangxi, China in Nov 2005, and used 5 microsatellite loci and the SRY gene to assess the relatedness between 46 langurs within and between groups. We observed 2 forms of group structure: one‐male/multi‐female groups (OMGs) and all‐male groups (AMGs). One AMG in Fa was composed of 2 generations, included a father, 2 sons and 1 unrelated male, and all OMGs in all 3 habitats included 1 resident male, several adult females and offspring. Of the 21 identified father‐offspring cases, the resident male fathered 20 (95%) and the non‐resident male sired 1 (5%), suggesting that adult males had overwhelming priority of access to females as the resident male in an OMG, while the non‐resident male may also have the opportunity to adopt surreptitious mating strategies. |
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| Keywords: | langur microsatellites paternity reproductive strategy Trachypithecus poliocephalus leucocephalus |
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