Volume 32 Issue 6
Nov.  2011
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LI Guo-Song, YANG Xian-Ming, ZHANG Hong-Yu, LI Wei. Population and distribution of western black crested gibbon (Nomascus concolor) at Ailao Mountain, Xinping, Yunnan. Zoological Research, 2011, 32(6): 675-683. doi: 10.3724/SP.J.1141.2011.06675
Citation: LI Guo-Song, YANG Xian-Ming, ZHANG Hong-Yu, LI Wei. Population and distribution of western black crested gibbon (Nomascus concolor) at Ailao Mountain, Xinping, Yunnan. Zoological Research, 2011, 32(6): 675-683. doi: 10.3724/SP.J.1141.2011.06675

Population and distribution of western black crested gibbon (Nomascus concolor) at Ailao Mountain, Xinping, Yunnan

doi: 10.3724/SP.J.1141.2011.06675
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  • Author Bio:

    LI Guo-Song

  • Corresponding author: LI Guo-Song
  • Received Date: 2011-08-29
  • Rev Recd Date: 2011-11-08
  • Publish Date: 2011-12-22
  • The western black crested gibbon (Nomascus concolor) is mainly distributed in Yunnan, China. Ailao Mountain is located in central Yunnan and divided into three prefectures and six counties. This mountain forms the principle distribution range for western black crested gibbon; however, there are no published data on the gibbon population inhabiting the Xinping administrative. Take the interview results conducted in 2007 and 2009 with local people as the reference, this study conducted an extensive field survey covering all possible habitats from November 2009 to January 2010 using call surveys. Among the one hundred and twenty-four gibbon groups which were confirmed across the Ailao Mountain, the largest known population of western black crested gibbons yet, 85 groups inhabit the national nature reserve and adjacent national forest, 30 groups inhabit the provincial nature reserve and nine groups inhabit the collective forest located outside the reserve and national forest. We found that the western black crested gibbons here have a patchy distribution pattern and occur at higher densities in certain areas. Moreover, the population distribution density and elevation gradient distribution decline from north to south. The results also demonstrated the importance of Ailao Montain in the western black crested gibbon protection.
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