Proximity association in polygynous western black crested gibbons (Nomascus concolor jingdongensis): network structure and seasonality
Proximity association in polygynous western black crested gibbons (Nomascus concolor jingdongensis): network structure and seasonality
复制标题
一夫多妻制西部黑冠长臂猿(Nomascus concolor jingdongensis)的邻近关联:网络结构和季节性
DOI:
10.3724/sp.j.1141.2013.e01e01
复制
发表时间:
2013-02-01
影响因子:
4.9
通讯作者:
Jiang, Xue-Long
中科院分区:
文献类型:
--
作者:
Guan, Zhen-Hua;Huang, Bei;Jiang, Xue-Long
We investigated the structure and seasonality of the proximity network in a group of polygynous western black crested gibbons (Nomascus concolor) using social network analysis. The spatial proximity changed seasonally and was affected by temperature and rainfall. Preferred proximity association was not distributed randomly among individuals. Kinship was one explanation for the social structure, as offspring preferred to maintain close proximity with their mothers. The proximity of infants to mothers decreased with age, and independent offspring had lower proximity to mothers than dependent ones. We found that the adult male had different proximity relationships with two different adult females. The frequency of proximity between the male and the infant-carrying female was significantly higher than that between the male and the female who had immigrated carrying one offspring of uncertain paternity into the group. Infanticide avoidance and/or predation protection for dependent infants might explain the proximity relationship differences. Temperature influenced group proximity association, with individual proximity increasing in the cold months and decreasing in the hot months. Group proximity decreased in months with higher anthropogenic disturbance.