scholarly journals Two Endemic Primates’ Species in China: Hainan Gibbon and Guizhou Snub-Nosed Monkey

2019 ◽  
Author(s):  
Jiang Zhou ◽  
Huaiqing Deng
Keyword(s):  

2016 ◽  
Vol 79 (3) ◽  
pp. e22617 ◽  
Author(s):  
Jessica V. Bryant ◽  
Xingyuan Zeng ◽  
Xiaojiang Hong ◽  
Helen J. Chatterjee ◽  
Samuel T. Turvey
Keyword(s):  


Oryx ◽  
2015 ◽  
Vol 51 (1) ◽  
pp. 161-165 ◽  
Author(s):  
Huaiqing Deng ◽  
Mingxia Zhang ◽  
Jiang Zhou

AbstractThe Critically Endangered Hainan gibbonNomascus hainanusis 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 km2. 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.



Oryx ◽  
2020 ◽  
Vol 54 (3) ◽  
pp. 296-296 ◽  
Author(s):  
Bosco Pui Lok Chan ◽  
Yik Fui Philip Lo ◽  
Yanni Mo
Keyword(s):  


2020 ◽  
Vol 11 ◽  
Author(s):  
Yanqing Guo ◽  
Jiang Chang ◽  
Ling Han ◽  
Tao Liu ◽  
Gang Li ◽  
...  

The Hainan gibbon (Nomascus hainanus), once widespread across Hainan, China, is now found only in the Bawangling National Nature Reserve. With a remaining population size of 33 individuals, it is the world’s rarest primate. Habitat loss and fragmentation are the primary drivers of Hainan gibbon population decline. In this study, we integrated data based on field investigations and genotype analyses of 10 microsatellite loci (from fecal samples) to assess genetic diversity in this Critically Endangered primate species. We found that the genetic diversity of the Hainan gibbon is extremely low, with 7 of 8 microsatellite loci exhibiting decreased diversity. Additional molecular analyses are consistent with field observations indicating that individuals in groups A, B, and C are closely related, the female–male sex ratios of the offspring deviates significantly from 1:1, and the world’s remaining Hainan gibbon population is expected to experience continued high levels of inbreeding in the future. Given extensive habitat loss (99.9% of its natural range has been deforested) and fragmentation, this rarest ape species faces impending extinction unless corrective measures are implemented immediately.



Oryx ◽  
2015 ◽  
Vol 49 (3) ◽  
pp. 391-392 ◽  
Author(s):  
Jessica V. Bryant ◽  
Samuel T. Turvey ◽  
Michelle H.G. Wong ◽  
Kathy Traylor-Holzer


2016 ◽  
Vol 37 (4-5) ◽  
pp. 534-547 ◽  
Author(s):  
Jessica V. Bryant ◽  
Aurélien Brulé ◽  
Michelle H. G. Wong ◽  
Xiaojiang Hong ◽  
Zhaoli Zhou ◽  
...  
Keyword(s):  


2011 ◽  
Vol 46 (1) ◽  
pp. 259-264 ◽  
Author(s):  
A. R. MOOTNICK ◽  
B. P. L. CHAN ◽  
P. MOISSON ◽  
T. NADLER
Keyword(s):  


2020 ◽  
Vol 24 ◽  
pp. e01317
Author(s):  
Yanjun Du ◽  
Danfeng Li ◽  
Xiaobo Yang ◽  
Danxiao Peng ◽  
Xinran Tang ◽  
...  


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