Taxonomy and conservation status of gibbons in China
This paper reviews the taxonomy and conservation status of gibbons ( Hylobatidae) and provides basic and comprehensive data for future conservation and research of gibbons in China. Based on the latest taxonomy of gibbons, 4 genera and 17 species are recognized. Of these, 6 species in 3 genera ( Nomascus concolor, N.nasutus, N.hainanus, N. leucogenys, Hoolock leuconedys, Hylobates lar) are distributed in China. Gibbons once were widely distributed in China , but are now restricted in Yunnan, Guangxi and Hainan because of habitat loss and degradation, and hunting. Conservation of gibbons in China is an urgent problem. H. lar and N. leucogenys might have disappeared from China; the populations of N. nasutus, N. hainanus are less than 30 individuals; the populations of H. leuconedys is less than 200 individuals ; and as for the largest population, N. concolor has 1 000 - 1 300 individuals. Law enforcement, conservation awareness education, promotion of popular science, and long-term conservation oriented research will help to conserve China' s last surviving gibbons.