Nomascus concolor ssp. lu


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Nomascus concolor ssp. lu
Species Authority: Delacour, 1951
Parent Species:
Common Name(s):
English Laotian Black Crested Gibbon

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2cd; C2a(i) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Bleisch, B., Geissmann, T., Timmins, R.J. & Xuelong, J.
Reviewer(s): Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)
Listed as Critically Endangered because there is an estimate of over 80% population decline based on habitat loss and hunting in the past 45 years (3 generations). Although there are no solid estimates of total mature individuals, estimates based on current evidence indicate that there are less than 250 mature individuals, and a continuing decline.
2000 Endangered

Geographic Range [top]

Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Systems: Terrestrial

Citation: Bleisch, B., Geissmann, T., Timmins, R.J. & Xuelong, J. 2008. Nomascus concolor ssp. lu. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 28 August 2015.
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