Journal
AMERICAN JOURNAL OF PRIMATOLOGY
Volume 79, Issue 5, Pages -Publisher
WILEY
DOI: 10.1002/ajp.22631
Keywords
endangered species; gibbon; Hoolock tianxing; Mt. Gaoligong; new species
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Funding
- National Natural Science Foundation of China [31160424]
- China Green Foundation
- National Program for Support of Top-Notch Young Professionals in China
- Ministry of Science and Technology of China [2012FY110800]
- Grants-in-Aid for Scientific Research [16F16092] Funding Source: KAKEN
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We describe a species of Hoolock gibbon (Primates: Hylobatidae) that is new to science from eastern Myanmar and southwestern China. The genus of hoolock gibbons comprises two previously described living species, the western (Hoolock hoolock) and eastern hoolock (H. leuconedys) gibbons, geographically isolated by the Chindwin River. We assessed the morphological and genetic characteristics of wild animals and museum specimens, and conducted multi-disciplinary analyses using mitochondrial genomic sequences, external morphology, and craniodental characters to evaluate the taxonomic status of the hoolock population in China. The results suggest that hoolocks distributed to the east of the Irrawaddy-Nmai Hka Rivers, which were previously assigned to H. leuconedys, are morphologically and genetically distinct from those to the west of the river, and should be recognized as a new species, the Gaoligong hoolock gibbon or skywalker hoolock gibbon (H. tianxing sp. nov.). We consider that the new species should be categorized as Endangered under IUCN criteria. The discovery of the new species focuses attention on the need for improved conservation of small apes, many of which are in danger of extinction in southern China and Southeast Asia.
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