• Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gladys Porter Zoo, Brownsville, Texas, USA
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center Cuc Phuong National Park, Cuc Phuong National Park,Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ho Chi Minh, Ninh Binh, Vietnam
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ho Chi Minh, Ninh Binh, Vietnam
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gladys Porter Zoo, Brownsville, Texas, USA
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center Cuc Phuong National Park, Cuc Phuong National Park,Ninh Binh Province, Vietnam
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ho Chi Minh, Ninh Binh, Vietnam
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Gibbon Conservation Center, Santa Clarita, California, USA
  • Endangered Primate Rescue Center, Cuc Phuong National Park, Ho Chi Minh, Ninh Binh, Vietnam

Photo Ark

Northern White-Cheeked Gibbon

Nomascus leucogenys

Endangered Primate Rescue Center, Cuc Phuong National Park, Ho Chi Minh, Ninh Binh, Vietnam

Critically Endangered

There have been no records of this species from China since 1990 despite survey work, and it might now be extinct in that country (W. Bleisch pers. comm. 2006). In Lao PDR, population numbers of this species are highest due to the larger areas of remaining natural habitat, though increased hunting since 1990 to support the wildlife trade threatens these animals. Relative to N. siki and N. gabriellae, densities and numbers of this species in equivalent forest blocks are significantly lower due to higher exploitation. Forest fragmentation is also much higher in the range of N. leucogenys than in the ... Read More

Nomascus leucogenys has suffered from deforestation through agricultural encroachment into mountainous areas and fuel-wood and timber extraction from remaining forests, especially in China and Viet Nam. Hunting for food, traditional "medicines", and their cultural value is a major threat across the range, and is likely to have been the primary cause for the decline of the species in all three countries, including the presumed extinction of this species in China (Duckworth et al. 1999; Geissmann et al. 2000). Read More

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Bleisch, B., Geissmann,T., Manh Ha, N., Rawson, B. & Timmins, R.J. 2008. Nomascus leucogenys. The IUCN Red List of Threatened Species 2008: e.T39895A10272040. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T39895A10272040.en