Phayre glasses langur
| Phayre glasses langur | ||||||||||||
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| Scientific name | ||||||||||||
| Trachypithecus phayrei | ||||||||||||
| ( Blyth , 1847) |
The Phayre's leaf monkey ( Trachypithecus phayrei ), also called Phayres suppression coffee referred to, a primate of the genus lutung . The specific epithet refers to Sir Arthur Purves Phayre (1812-1885), the first general commissioner of British Burma (now Myanmar).
description
The males reach a head-trunk length of 51 to 55 cm, the females are smaller with a length of 45 to 53 cm. The tail reaches a length of 64 to 87 cm and has a dark tuft of hair at the tip. The weight is 7 to 9 kg for the males and 5 to 7 kg for the females. The fur is gray-brown on the back, the underside and the lips are white. The eyes are surrounded by a wide, white, glasses-shaped ring. The face, hands and feet are colored black. The upper arms, legs and tail are silver gray. The elongated crested hair occurs only in the adult animals and is directed backwards.
distribution and habitat
The distribution area of the Phayre-eyeglass langur stretches from Bangladesh and northeast India to Myanmar and southern China ( Yunnan ). Its habitat are primary and secondary forests with dense evergreen vegetation, bamboo vegetation , tea plantations as well as slopes and river banks.
Way of life
Like all Old World monkeys, these primates are diurnal. They mainly live in the trees, but occasionally come to the ground. They live in groups of 3 to 30 animals. In contrast to most other crested langurs, these are not only harem groups with one male, but can also include several males. They are territorial animals that defend their territory against foreign groups.
The diet of these animals consists mainly of leaves, but they also eat saplings and fruits. Like all Schlankaffen they have a multi-chambered stomach for better utilization of the difficult to digest food.
As a rule, the female gives birth to a single young animal, which, like all crested langurs, is initially orange-yellow in color.
status
The IUCN classifies the species as " critically endangered ". It is hunted for its meat, and traditional Chinese medicine ascribes beneficial properties to its gallstones . In addition, the ongoing destruction of the habitat by deforestation is likely to pose a threat.
Systematics
There are two subspecies: T. p. phayrei from the east of Bangladesh, the northeast of India and the west of Myanmar and T. p. shanicus from southwest China and north and east Myanmar. A former third subspecies, the Indochina spectacled langur ( T. crepusculus ) from the north of Vietnam, Laos and Thailand, is now considered a separate species.
The Phayre spectacle langur, together with the Indochina spectacled langur, the southern spectacled langur and the tenasserim langur, form the obscurus group within the genus of the crested langur .
literature
- Thomas Geissmann : Comparative Primatology. Springer-Verlag, Berlin et al. 2003, ISBN 3-540-43645-6 .
Individual evidence
- ^ A b D. Zinner, GH Fickenscher & C. Roos: Family Cercopithecidae (Old World monkeys). Pages 747 and 748 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World: Primates: 3rd ISBN 978-8496553897
Web links
- Information on Theprimata.com
- Joydeep Bose: A Conservation Survey of the Phayre's Leaf monkey ( Trachypithecus phayrei ) in Assam and Mizoram (Engl.)
- Trachypithecus phayrei in the Red List of Threatened Species of the IUCN 2013.1. Posted by: Bleisch, B., Brockelman, W., Timmins, RJ, Nadler, T., Thun, S., Das, J. & Yongcheng, L., 2008. Retrieved September 29, 2013.