Thomas's langur
| Thomas's langur[1] | |
|---|---|
| |
| Adult at the Bukit Lawang sanctuary. | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
| Infraorder: | Simiiformes |
| Family: | Cercopithecidae |
| Genus: | Presbytis |
| Species: | P. thomasi
|
| Binomial name | |
| Presbytis thomasi (Collett, 1893)
| |
| |
| Thomas's langur range | |
Thomas's langur (Presbytis thomasi), also known as the North Sumatran leaf monkey or Thomas's leaf monkey, is a species of primate in the family Cercopithecidae. It is endemic to northern Sumatra, Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.[2] Its native names are reungkah in Acehnese and kedih in Alas.[3] It can be found in Gunung Leuser National Park, where substantial populations exist in Ketambe and Bukit Lawang.[4]
Diet[edit]
Although primarily folivorous (leaf eating), Thomas Leaf Monkeys also eat fruit, flowers and occasionally toadstools and snails. As a member of the langur family presbytis, they have stomachs evolved to digest cellulose and microbes in the gut extract nutrients from leaves.[5] Reflected in this diet of leaves is the extent to which they do consume fruit, which is usually unripe and with high ph levels to avoid killing the microbes they need to digest leaves. Thomas Langurs also drink from holes in trees where water collects or small pools[4][5]
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References[edit]
- ^ Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 172. ISBN 0-801-88221-4. OCLC 62265494.
- ^ a b Setiawan, A.; Traeholt, C. (2020). "Presbytis thomasi". IUCN Red List of Threatened Species. 2020: e.T18132A17954139. doi:10.2305/IUCN.UK.2020-2.RLTS.T18132A17954139.en. Retrieved 16 November 2021.
- ^ Biodiversitas Rawa Tripa
- ^ a b Suprianta, Jatna (January 25, 2022). Field Guide to the Primates of Indonesia. Switzerland: Springer. pp. 126–127. ISBN 978-3-030-83205-6.
- ^ a b Downey, Kathleen (May 2018). "Thomas Leaf Monkey Presbytis thomasi". New England Primate Conservancy. Retrieved April 24, 2024.
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