|title: ||Recovery of the Critically Endangered Hainan gibbon Nomascus hainanus|
|author: ||Deng, Huaiqing; Zhang, Mingxia; Zhou, Jiang|
|Issued Date: ||2017 |
|Abstract: ||The Critically Endangered Hainan gibbon Nomascus hainanus is one of the most threatened primate species and is now found only in the Bawangling National Nature Reserve of Hainan Province, China. We describe changes in population dynamics, and the current number of individuals, based on historical sources and fieldwork during 2002-2013. The population comprises a total of 20 individuals (including six solitary males) in three separate groups. All are confined to an area of c. 16 km(2). The current population developed from two groups that comprised a total of 13 individuals in 2002, and has increased slowly since then, with the addition of one new group. Population increase is hindered by the gibbon's unique social structure of one adult male and two adult females, as well as the reproductive age limit in adult females. An imbalance in the sex ratio of offspring may also have hindered population recovery but further investigation of this is required. Our findings indicate that the Hainan gibbon is likely to remain Critically Endangered in the coming decades.|
|Appears in Collections:||2012年后新成立研究组_期刊论文|
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Deng, Huaiqing,Zhang, Mingxia,Zhou, Jiang. Recovery Of The Critically Endangered Hainan Gibbon Nomascus Hainanus[J]. Oryx,2017,51(1):161-165.