Northern buffed-cheeked gibbon

The Northern Yellow -cheeked Gibbon ( Nomascus annamensis ) is a primate of the family of Gibbons ( Hylobatidae ). The species was the Southern white -cheeked gibbon ( N. siki ) separated and described by scientists at the German Primate Center in Göttingen in 2010. Van Ngoc Thinh The doctoral candidate had noticed the characteristic voice of the animals, which differs from that of the Southern white -cheeked crested gibbons. In addition to the tone frequency, the genotypes was investigated in the extracted precipitates from intestinal cells. The total population of the species newly described is estimated at 10,000 animals.

Features

The Northern Yellow -cheeked gibbon resembles its relatives. The females are brightly colored, the males black with yellow- reddish cheeks. It differs from this in its genetic structure and the shouts. Like all gibbons he has long arms and has the ability to shimmy with the utmost precision and wide sweeps through the treetops. The Northern Yellow -cheeked lives monogamous.

Distribution and habitat

The Northern Yellow -cheeked gibbon is found in the central Annamitengebirge in southern Laos and central Vietnam. The Mekong River forms the western boundary of its occurrence. The border of the distribution area of the Southern Yellow -cheeked crested gibbon ( N. gabriellae ) forms the Ba River, which the distribution area of the Southern white -cheeked crested gibbon the rivers Banghiang in Laos and Tach Han in Vietnam. Like all gibbons are the northern buffed -cheeked crested gibbon outspoken forest dwellers and are found in tropical rainforests.

Source

• Thinh, V.N. et al.: A new species of crested gibbon, from the central Annamite mountain range. In: Vietnamese Journal of Primatology. 1 (4 ), pp. 1-12, 2010.