Subspecies of primate
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The Tonkin black crested gibbon (Nomascus concolor concolor) is a critically endangered subspecies of the black crested gibbon found in Yunnan and Vietnam.
Distribution.
Geographic range.
The Tonkin black crested gibbon is found occurs in central and southwestern Yunnan (China) and in northern Vietnam, precisely in Lao Cai, Yen Bai, Son La and Lai Châu provinces.
Habitat.
The Tonkin black-crested gibbon lives in forests at altitudes of between .
Behavior.
Social structure.
The Tonkin black-crested gibbon lives in groups.
Feeding.
The Tonkin black-crested gibbon feeds mainly on leaves, fruits, figs and flowers.
Conservation.
Status.
As of November 2015, the Tonkin black crested gibbon is critically endangered.
Threats.
The Tonkin black-crested gibbon is threatened by the destructive use of local forests, hunting, selective logging and the encroachment of agriculture on its environment.
References.
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