- Hainan Black Crested Gibbon
Taxobox
name = Hainan Black Crested GibbonMSW3 Groves | pages = 180 | id = 12100781] cite web | last = Geissmann | first = Thomas | title = Gibbon Systematics and Species Identification | url = http://gibbons.de/main/system/intro.html | accessdate = 2006-04-13]
status = CR
status_system = iucn3.1
trend = unknown
status_ref = IUCN2006 | assessors = Geissmann, T. | year = 2003 | title = Nomascus nasutus "ssp." hainanus | id = 41643 | downloaded =2006-11-21 ]
regnum =Animal ia
phylum = Chordata
classis =Mammal ia
ordo =Primates
familia =Hylobatidae
genus = "Nomascus "
species = "N. nasutus"
subspecies = "N. n. hainanus"
trinomial = "Nomascus nasutus hainanus"
trinomial_authority = (Thomas , 1892)The Hainan Black Crested Gibbon ("Nomascus nasutus hainanus"), is a subspecies of the
Eastern Black Crested Gibbon , found onHainan Island , China and theHoa Binh andCao Bang provinces ofVietnam . Its habitat consists of broad-leaved forests and semi-deciduous monsoon forest. It lives in small family groups with a monogamous male, a female, and their offspring. One offspring is usually born every 2-3 years. After two years it is usually weaned off its mother. At times, there can be multiple females. Unlike many other primates, groups of this gibbon are led by the females. It feeds on ripened fruit and, at times, leaves, and insects. The Hainan Black Crested Gibbon is one of the most critically endangered primates. Deforestation is the main cause and has caused a dramatic decline in population. As of October 2007, there are only 17 reported individuals living on the Hainan.Physical characteristics
There is distinct
Sexual dimorphism in the Hainan Black Crested Gibbon. The males are all almost completely black, with sometimes white or buff cheeks. Females, on the other hand, are a golden or buff color with black patches, including a streak of black on the head. Both males and females are on the slender side of the primate species with long arms and legs with no tail. This is usually used to swing from tree to tree which is known asbrachiation . Also, the Hainan Black Crested Gibbon sings duets for bonding and mating.References
*http://www.arkive.org/species/GES/mammals/Nomascus_concolor/more_info.html?section=factsAndStatus retrieved June 30, 2008
*http://news.nationalgeographic.com/news/2007/10/photogalleries/primate-pictures/photo9.html retrieved June 30, 2008External links
*http://www.primate-sg.org/hainanus.htm
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