Kingdom Animalia Order Primates Genus Hoolock Higher classification Hoolock gibbon | Phylum Chordata Family Hylobatidae Scientific name Hoolock hoolock Rank Species | |
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Similar Hoolock gibbon, Gibbon, Eastern hoolock gibbon, Primate, Kloss's gibbon |
The western hoolock gibbon (Hoolock hoolock) is a primate from the gibbon family, Hylobatidae. The species is found in Assam, Mizoram, Bangladesh and in Myanmar west of the Chindwin River.
Contents
- Caged western hoolock gibbon hoolock hoolock
- Classification
- Vocalisation
- Habitat
- Conservation
- Diet
- References
![Western hoolock gibbon Western hoolock gibbon photo Hoolock hoolock G140207 ARKive](https://alchetron.com/cdn/western-hoolock-gibbon-54a9c61b-bf97-484c-a9b9-40dbefcf1c7-resize-750.jpeg)
Caged western hoolock gibbon hoolock hoolock
Classification
![Western hoolock gibbon People Resources and Conservation Foundation PRCF Western](https://alchetron.com/cdn/western-hoolock-gibbon-ab259b1b-1437-43ad-a315-d23ddc8d2a7-resize-750.jpeg)
Mootnick and Groves stated that hoolock gibbons do not belong in the genus Bunopithecus, and placed them in a new genus, Hoolock. This genus was argued to contain two distinct species which were previously thought to be subspecies: Hoolock hoolock and Hoolock leuconedys which were later have found that the 2 species have a bigger difference to that of white handed gibbons than bonobos to chimpanzees.
Vocalisation
![Western hoolock gibbon httpsuploadwikimediaorgwikipediacommonsthu](https://alchetron.com/cdn/western-hoolock-gibbon-f93f80d6-f016-4f31-aa6a-a51d56e8141-resize-750.jpg)
Like other gibbons, hoolock gibbon pairs produce a loud, elaborate song, usually sung as a duet from the forest canopy, in which younger individuals of the family group may join in. The song includes an introductory sequence, an organising sequence, and a great call sequence, with the male also contributing to the latter (unlike in some other gibbon species).
Habitat
![Western hoolock gibbon Western hoolock gibbon photo Hoolock hoolock G114111 ARKive](https://alchetron.com/cdn/western-hoolock-gibbon-bdd2f7bf-8770-4474-baf2-42d0c41ec4e-resize-750.jpeg)
In India and Bangladesh it is found where there is contiguous canopy, broad-leaved, wet evergreen and semi-evergreen forests dipterocarpus forest often mountainous. The species is an important seed disperser; its diet includes mostly ripe fruits, with some flowers, leaves and shoots.
Conservation
![Western hoolock gibbon Birding2asia In focus a spotlight on Western Hoolock Gibbon](https://alchetron.com/cdn/western-hoolock-gibbon-ba7bdc61-19e9-4090-9cfb-b68d154999b-resize-750.jpeg)
There are numerous threats to western hoolock gibbons in the wild, and are now entirely dependent on human action for their survival. Threats include habitat encroachment by humans, forest clearance for tea cultivation, the practice of jhuming (slash-and-burn cultivation), hunting for food and “medicine”, capture for trade, and forest degradation.
![Western hoolock gibbon Western hoolock gibbon photo Hoolock hoolock G64356 ARKive](https://alchetron.com/cdn/western-hoolock-gibbon-d0a2e91a-b5a0-41ef-bd8f-4d01719c644-resize-750.jpeg)
Over the last 30–40 years, western hoolock gibbon numbers are estimated to have dropped from more than 100,000 (Assam alone was estimated to have around 80,000 in the early 1970s) to less than 5,000 individuals (a decline of more than 90%). In 2009 it was considered to be one of the 25 most endangered primates, though it has been dropped from the later editions of the list.
Diet
Hoolock gibbons feed mostly on various fruits, with some leaves, flowers and insects.