Institute of Rare Animals and Plants, China West Normal University, Nanchong, Sichuan 637009, China.
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
Zool Res. 2020 Jan 18;41(1):78-83. doi: 10.24272/j.issn.2095-8137.2020.008.
Individual dispersal trends, unquestionably important for species ecology and evolution, are affected by multiple factors. Understanding the factors that influence female dispersal strategies offers important insight into primate dispersal mechanisms and female choice. To investigate the proximate causes of dispersal in female Yunnan snub-nosed monkeys (), we observed and analyzed nine years of detailed dispersal and demographic data from a population of in Xiangguqing, Baimaxueshan Nature Reserve, Yunnan Province, China. Results showed that females who lived long-term in a one-male unit (OMU), without giving birth and with few or no relatives, were more likely to leave that OMU. In addition, an OMU led by an outgroup male and containing more female relatives was significantly more likely to be chosen for immigration. Conversely, greater male age, longer male tenure, and more potentially fertile females discouraged immigration into an OMU. These results suggest that reproduction, male quality, and kin cooperation play the largest roles in female Yunnan snub-nosed monkey dispersal.
个体扩散趋势对物种的生态和进化无疑很重要，而这些趋势受到多种因素的影响。了解影响雌性扩散策略的因素，可为灵长类动物的扩散机制和雌性选择提供重要的见解。为了研究雌性滇金丝猴扩散的近因，我们对中国云南省白马雪山自然保护区响古箐的一个种群进行了长达 9 年的详细扩散和种群数据的观察和分析。结果表明，长期生活在一个由一只雄性主导、没有生育且亲缘关系较少或没有的单雄单元（OMU）中的雌性更有可能离开该 OMU。此外，由外群雄性主导且包含更多雌性亲属的 OMU 更有可能被选择用于迁入。相反，雄性年龄较大、雄性任期较长以及潜在的可育雌性较多会阻碍迁入 OMU。这些结果表明，繁殖、雄性质量和亲属合作在雌性滇金丝猴的扩散中起着最大的作用。
