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The Cat Ba langur (Trachypithecus poliocephalus), also known as the golden-headed langur, is a critically endangered species of langur endemic to Cát Bà Island, Vietnam.It is among the rarest primates in the world, and possibly the rarest primate in Asia, with population size estimated at less than 70 individuals.
The Cat Ba langur (Trachypithecus poliocephalus), or golden-headed langur, is endemic to Cat Ba Island and is one of the most endangered primates in the world. The langurs' population numbers, which used to be between 2,400 and 2,700, dwindled to as low as only 53 langurs in 2000 due to poaching for traditional medicine and habitat ...
The park has been a popular tourist destination, since the mid-1990s with wealthy Chinese and Vietnamese tourists. The tourists created a demand for traditional medicine and development and logging led to the near extinction of the white-headed langur with numbers falling from 2600 to just 40 in 2003. In 2016 there are 67 (± 5). [1]
It was formerly considered a subspecies of the Cat Ba langur (T. poliocephalus), which is now thought to be endemic to Vietnam. [2]Its taxonomy was previously uncertain; it has been considered a partially albinistic population of the François' langur (T. francoisi), a subspecies of Francois' langur, [3] a valid species (T. leucocephalus), or a subspecies, T. poliocephalus leucocephalus.
Lastly, the White-headed langur (T. leucocephalus), previously thought to be a subspecies of the Francois langur (T. Francois) or Cat Ba langur (T. poliocephalus), is currently recognized as a distinct species by IUCN Red List assessors and the American Society of Mammalogists, based on a 2007 paper by Groves. [17] [18] [19]
For example, if your cat is panting and it seems like they are struggling to breath, you need to see your vet right away. Here are a few other reasons you'd want to make an appointment with a vet. 1.
Hatinh langur, Trachypithecus hatinhensis EN; Annamese langur, Trachypithecus margarita; Cat Ba langur, T. poliocephalus CR [14] Genus: Pygathrix. Gray-shanked douc, Pygathrix cinerea CR; Red-shanked douc, Pygathrix nemaeus EN; Black-shanked douc, Pygathrix nigripes EN; Genus: Rhinopithecus. Tonkin snub-nosed langur, Rhinopithecus avunculus CR ...
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