Java langur
| Java langur | ||||||||||||
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Java langur ( Presbytis comata comata ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Presbytis comata | ||||||||||||
| ( Desmarest , 1822) |
The Java langur ( Presbytis comata , Syn . : P. aygula ) is a primate species from the group of the slender monkeys (Presbytini). There are two subspecies , Presbytis c. comata and P. c. fredericae , which are sometimes given the rank of their own species. P. c. fredericae occurs on the Dieng Plateau and on the slopes of the Slamet and Cupu volcanoes , P. c. comata lives in the west of Java from the Ujung Kulon National Park on the southwest tip of Java to the stratovolcano Lawu .
features
Java langurs, like all cap langurs, are relatively small, slender monkeys with a very long tail. Their average weight is around 6.5 kilograms. The face is broad, with a mop of hair at the top of the head. With regard to the color of the fur , the subspecies differ: P. c. comata is gray on the back and on the outside of the limbs, the belly and the inside of the limbs are whitish, the head of hair is black. P. c. fredericae is darker. In this subspecies, the back is black, the throat and chest are light gray, and the belly and insides of the limbs are white.
distribution and habitat
Java langurs are only found on the island of Java , where P. c. comata the western and P. c. fredericae inhabits the central parts of the island. Their habitat are forests, both deep down and mountain forests up to over 2000 meters above sea level. You can live in both primary and secondary forests .
Way of life
Like all Old World monkeys , Java langurs are diurnal. They stay almost exclusively in the trees, where they move through skilful climbing and jumping. These primates live in groups of 3 to 20 animals made up of a male, several females and their offspring. While moving, eating and sleeping, the group members stay close together, but the groups sometimes split up for a short time. They are territorial animals. Although the roaming areas of the individual groups overlap, they behave aggressively towards foreign groups.
They are herbivores that mainly eat young leaves. They also eat fruits, flowers, ripe leaves and mushrooms. A multi-chambered stomach helps them digest food.
threat
Their home island Java is very densely populated by humans, which is why their area of distribution has been greatly reduced and fragmented. The main threat is the destruction of their habitat. An estimate from 1999 puts the total population at less than 2500 animals. The IUCN lists P. comata "endangered strong" as ( endangered ).
literature
- Thomas Geissmann : Comparative Primatology. Springer-Verlag, Berlin et al. 2003, ISBN 3-540-43645-6 .
- Don E. Wilson, DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .