Takin
| Takin | |
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| Takin at Roger Williams Park Zoo | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | Bovidae |
| Subfamily: | Caprinae |
| Tribe: | Caprini |
| Genus: | Budorcas |
| Species: | B. taxicolor
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| Binomial name | |
| Budorcas taxicolor Hodgson, 1850
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| Subspecies | |
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| Distribution of the takin | |
The takin (Budorcas taxicolor; /ˈtɑːkɪn/ TAH-kin), also called cattle chamois or gnu goat,[2] is a large species of ungulate of the subfamily Caprinae found in the eastern Himalayas. It includes four subspecies: the Mishmi takin (B. t. taxicolor), the golden takin (B. t. bedfordi), the Tibetan (or Sichuan) takin (B. t. tibetana), and the Bhutan takin (B. t. whitei).
Whilst the takin has in the past been placed together with the muskox in the tribe Ovibovini, more recent mitochondrial research shows a closer relationship to Ovis (sheep).[3] Its physical similarity to the muskox is therefore an example of convergent evolution.[4] The takin is the national animal of Bhutan.[5]
Etymology
[edit]The specific name taxicolor comes from Latin: taxus, lit. 'badger' and color, 'hue' referring to badger-like coloration.[6]
Appearance
[edit]The takin rivals the muskox as the largest and stockiest of the subfamily Caprinae, which includes goats, sheep, and similar species. Its short legs are supported by large, two-toed hooves, which each have a highly developed spur.[2][7] It has a stocky body and a deep chest. Its large head is distinctive by its long, arched nose and stout horns, which are ridged at the base. Horns are present in both sexes, and run parallel to the skull before turning upwards to a short point; they are about 30 cm (12 in) long, but can grow up to 64 cm (25 in).[2] Its long, shaggy coat is light in color with a dark stripe along the back,[2] and males (bulls) also have dark faces.[7]
Four subspecies of takin are currently recognised, and these tend to show a variation in coat colour. Their thick wool often turns black in colour on their undersides and legs. Their overall coloration ranges from dark blackish to reddish-brown suffused with grayish-yellow in the eastern Himalayas to lighter yellow-gray in the Sichuan Province to mostly golden or (rarely) creamy-white with fewer black hairs in the Shaanxi Province.
The legend of the 'golden fleece' sought by Jason and the Argonauts[8] may have been inspired by the lustrous coat of the golden takin (B. t. bedfordi).[7] Hair length can range from 3 cm (1.2 in), on the flanks of the body in summer, up to 24 cm (9.4 in) on the underside of the head in winter.
In height, takin stand 97 to 140 cm (38 to 55 in) at the shoulder, but measure a relatively short 160–220 cm (63–87 in) in head-and-body length, with the tail adding only an additional 12 to 21.6 cm (4.7 to 8.5 in). Measurements of weights vary, but according to most reports, the males are slightly larger, weighing 300–350 kg (660–770 lb) against 250–300 kg (550–660 lb) in females.[9] Sources including Betham (1908) report that females are larger, with the largest captive takin known to the author, at 322 kg (710 lb), having been female. Takin can weigh up to 400 kg (880 lb) or 600 kg (1,300 lb) in some cases.[10][11]
Instead of relying on localized scent glands, the takin secretes an oily, strong-smelling substance over its whole body, enabling it to mark objects such as trees.[7] A prominent nose with a swollen appearance caused biologist George Schaller to liken the takin to a "bee-stung moose."[5] Features reminiscent of familiar domesticated species have earned takins such nicknames as "cattle chamois" and "gnu goat."
Distribution and habitat
[edit]Takin are found from forested valleys to rocky, grass-covered alpine zones, at altitudes between 1,000 and 4,500 m (3,300 and 14,800 ft) above sea level.[2] The Mishmi takin occurs in eastern Arunachal Pradesh, while the Bhutan takin is in western Arunachal Pradesh and Bhutan.[12] Dihang-Dibang Biosphere Reserve in Arunachal Pradesh, India is a stronghold of both Mishmi, Upper Siang (Kopu)[13] and Bhutan takins.[14]
Behaviour and ecology
[edit]Takin are found in small family groups of around 20 individuals, although older males may lead more solitary existences. In the summer, herds of up to 300 individuals gather high on the mountain slopes.[2] Groups often appear to occur in largest numbers when favorable feeding sites, salt licks, or hot springs are located. Mating takes place in July and August. Adult males compete for dominance by sparring head-to-head with opponents, and both sexes appear to use the scent of their own urine to indicate dominance. A single young is born after a gestation period of around eight months.[2] Takin migrate from the upper pasture to lower, more forested areas in winter and favor sunny spots upon sunrise.[2] When disturbed, individuals give a 'cough' alarm call and the herd retreats into thick bamboo thickets and lies on the ground for camouflage.[8]
Takin feed in the early morning and late afternoon, grazing on a variety of leaves and grasses, as well as bamboo shoots and flowers.[8] They have been observed standing on their hind legs to feed on leaves over 3.1 m (10 ft) high. Salt is also an important part of their diets, and groups may stay at a mineral deposit for several days.[2]
Threats
[edit]The takin is listed as Vulnerable on the IUCN Red List and considered Endangered in China. It is threatened by overhunting and the destruction of its natural habitat. It is not a common species naturally, and the population appears to have been reduced considerably. Takin horns have appeared in the illegal wildlife trade in Myanmar; and during three surveys carried out from 1999 to 2006 in the Tachilek market, a total of 89 sets of horns were observed openly for sale.[15]
Taxonomy
[edit]Relationships with other caprines based on mitochondrial DNA after Bover et al.:[16]
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References
[edit]- ^ a b Song, Y.-L.; Smith, A.T.; MacKinnon, J. (2008). "Budorcas taxicolor". IUCN Red List of Threatened Species. 2008: e.T3160A9643719. doi:10.2305/IUCN.UK.2008.RLTS.T3160A9643719.en. Retrieved 24 January 2022.
- ^ a b c d e f g h i Animal Diversity Web (November, 2002) "Budorcas taxicolor" (University of Michigan Museum of Zoology) via arkive.org
- ^ Zhou, M; Yu, J; Li, B; Ouyang, B; Yang, J (2019). "The complete mitochondrial genome of Budorcas taxicolor tibetana (Artiodactyla: Bovidae) and comparison with other Caprinae species: Insight into the phylogeny of the genus Budorcas". International Journal of Biological Macromolecules. 121: 223–232. doi:10.1016/j.ijbiomac.2018.10.020. PMID 30296464. S2CID 52940552. Retrieved 2021-04-20.
- ^ Groves, Pamela; Shields, Gerald F. (December 1997). "CytochromeBSequences Suggest Convergent Evolution of the Asian Takin and Arctic Muskox". Molecular Phylogenetics and Evolution. 8 (3): 363–374. Bibcode:1997MolPE...8..363G. doi:10.1006/mpev.1997.0423. PMID 9417894.
- ^ a b Tashi Wangchuk (2007). "The Takin - Bhutan's National Animal". In Lindsay Brown; Stan Armington (eds.). Bhutan. Lonely Planet. p. 87. ISBN 978-1-74059-529-2. Retrieved 15 September 2011.
- ^ Neas, John F.; Hoffmann, Robert S. (27 February 1987). "Budorcas taxicolor". Mammalian Species (277): 1–7. doi:10.2307/3503907. ISSN 0076-3519. JSTOR 3503907.
- ^ a b c d Macdonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford. via arkive.org
- ^ a b c Huffman, Brent. "Budorcas taxicolor" Ultimate Ungulate via arkive.org
- ^ WWF: Takin
- ^ "Budorcas taxicolor (takin)". Animal Diversity Web. Retrieved 21 March 2018.
- ^ Smith, A. T., Xie, Y. (eds.) (2008) A Guide to the Mammals of China. Princeton University Press, Princeton Oxfordshire. Page 472.
- ^ Choudhury, A.U. (2003). The Mammals of Arunachal Pradesh. Regency Publications, New Delhi. 140pp
- ^
Dasgupta, S., Sarkar, P., Deori, D., Kyarong, S., Kaul, R., Ranjitsinh, M. K. & Menon, V. 2010 Distribution and Status of Takin (Budarcos taxicolor)along the Tibet, Myanmar and Bhutan border in India. A report of Wildlife Trust of India submitted to CEPF. 47 pages.
- [1] Archived 2013-04-25 at the Wayback Machine- Pseudorcas taxicolor profile by Neas and Hoffman (1987)
- ^ Choudhury, A.U. (2010). Mammals and Birds of Dihang – Dibang Biosphere Reserve, North-east India. Lambert Academic Publishing, Saarbrücken, Germany. 104pp.
- ^ Shepherd, C. R. & Nijman, V. (2016). "Observations of Takin from wildlife markets in Myanmar and a call for further research". Caprinae, Newsletter for the Caprinae Specialist Group: 16–19.
- ^ Bover, Pere; Llamas, Bastien; Mitchell, Kieren J.; Thomson, Vicki A.; Alcover, Josep Antoni; Lalueza-Fox, Carles; Cooper, Alan; Pons, Joan (July 2019). "Unraveling the phylogenetic relationships of the extinct bovid Myotragus balearicus Bate 1909 from the Balearic Islands". Quaternary Science Reviews. 215: 185–195. Bibcode:2019QSRv..215..185B. doi:10.1016/j.quascirev.2019.05.005. S2CID 189965070.
- This article incorporates text from the ARKive fact-file "Takin" under the Creative Commons Attribution-ShareAlike 3.0 Unported License and the GFDL.
Further reading
[edit]- Burton, M.; Burton, R. (January 2002). The international wildlife encyclopedia. Marshall Cavendish. pp. 2623–4. ISBN 978-0-7614-7285-8. Retrieved 15 September 2011.
External links
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