Clouded leopard

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Clouded Leopard [1]
Conservation status
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Felidae
Subfamily:Pantherinae
Genus:Neofelis
Species:N. nebulosa
Binomial name
Neofelis nebulosa
(Griffith, 1821)
Clouded leopard range
Synonyms

Felis macrocelis
Felis marmota

 
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Clouded Leopard [1]
Conservation status
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Felidae
Subfamily:Pantherinae
Genus:Neofelis
Species:N. nebulosa
Binomial name
Neofelis nebulosa
(Griffith, 1821)
Clouded leopard range
Synonyms

Felis macrocelis
Felis marmota

The clouded leopard (Neofelis nebulosa) is a felid found from the Himalayan foothills through mainland Southeast Asia into China, and has been classified as vulnerable in 2008 by IUCN. Its total population size is suspected to be fewer than 10,000 mature individuals, with a decreasing population trend and no single population numbering more than 1,000 adults.[2]

The Sunda clouded leopard (Neofelis diardi) found on Sumatra and Borneo is genetically distinct and considered a separate species since 2006.[3][4]

Contents

Characteristics

Close up of face

The fur of clouded leopards is of a dark grey or ochreous ground-colour, often largely obliterated by black and dark dusky-grey blotched pattern. There are black spots on the head, and the ears are black. Partly fused or broken up stripes run from the corner of the eyes over the cheek, from the corner of the mouth to the neck, and along the nape to the shoulders. Elongated blotches continue down the spine and form a single median stripe on the loins. Two large blotches of dark dusky-grey hairs on the side of the shoulders are each emphasized posteriorly by a dark stripe, which passes on to the fore leg and breaks up into irregular spots. The flanks are marked by dark dusky-grey irregular blotches bordered behind by long, oblique irregularly curved or looped stripes. These blotches yielding the clouded pattern suggest the English name of the cat. The underparts and legs are spotted, and the tail is marked by large irregular paired spots.[5] Melanistic clouded leopards are not common.

Clouded leopards weigh between 11.5 and 23 kg (25 and 51 lb). Females vary in head-to-body length from 68.6 to 94 cm (27.0 to 37 in), with a 61 to 82 cm (24 to 32 in) long tail. Males are larger at 81 to 108 cm (32 to 43 in) with a 74 to 91 cm (29 to 36 in) long tail.[6] Their shoulder height varies from 25 to 40 cm (9.8 to 16 in).[7]

Their legs are short and stout, with broad paws. They have exceptionally long, piercing canine teeth, the upper being about three times as long as the basal width of the socket.[5] The upper pair of canines may measure 4 cm (1.6 in) or longer.[6]

Distribution and habitat

Clouded leopards are native to Indochina, Thailand, Peninsular Malaysia, Myanmar, Bhutan, Bangladesh, India, and Nepal. They are regionally extinct in Taiwan, and occur marginally in mixed-evergreen forests of the northeastern and southeastern parts of Bangladesh.[2] In the Himalayan foothills of eastern India they have been recorded up to an altitude of 1,450 m (4,760 ft).[8] They have been reported from relatively open, dry tropical forest in Myanmar and Thailand.[9] They prefer open- or closed-forest habitats to other habitat types.[10]

In Assam, they have been observed in forests but have not been recorded in protected areas.[11] They occur in northern West Bengal, Sikkim, Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland and Tripura.[12][13]

Clouded leopards were believed to be extinct in Nepal, the last published record being from 1863. But in 1987–1988 four individuals were found in the country. These findings extended their known range westward suggesting that they are able to survive and breed in degraded woodlands and scrub previously supporting moist subtropical semi-deciduous forest.[14]

Distribution of subspecies

At present, the following three subspecies are recognized:[15]

Ecology and behavior

A clouded leopard at the Feline Conservation Center, Rosamond, California

Clouded leopards are the most talented climbers among the cats. In captivity, they have been observed to climb down vertical tree trunks head first, and hang on to branches with their hind paws bent around branchings of tree limbs. They are capable of supination and can even hang down from branches only by bending their hind paws and their tail around them. When jumping down, they keep hanging on to a branch this way until the very last moment. They can climb on horizontal branches with their back to the ground, and in this position make short jumps forward. When balancing on thin branches, they use their long tail to steer. They can easily jump up to 1.2 m (3.9 ft) high.[17]

Clouded leopards have been observed to scent mark in captivity by urine spraying and head-rubbing on prominent objects. Presumably such habits are used to mark their territory in the wild, although the size of their home ranges is unknown. Like other big cats, they do not appear able to purr, but they otherwise have a wide range of vocalisations, including mewing, hissing, growling, moaning, and snorting. Apart from information stemming from observations of captive clouded leopards, little is known of their natural history and behavior in the wild. Early accounts depict them as rare, secretive, arboreal and nocturnal denizens of dense primary forest. More recent observations suggest that they may not be as arboreal and nocturnal as previously thought. They may use trees as day time rest sites but also spend a significant proportion of time on the ground. Some daytime movement has been observed suggesting that they are not strictly nocturnal but crepuscular. However, the time of day when they are active depends on their prey and the level of human disturbance.[6]

Their partly nocturnal and far-ranging behaviour, their low densities, and the fact they inhabit densely vegetated habitats and remote areas makes the censusing and monitoring of clouded leopards extremely difficult. Consequently, little is known about their behaviour and status. Available information on their ecology is anecdotal, based on local interviews and a few sighting reports.[18]

Home ranges have only been estimated in Thailand:

Little is known of the feeding ecology of clouded leopards. Their prey likely includes both arboreal and terrestrial vertebrates.[6] Pocock presumed that they are adapted for preying upon herbivorous mammals of considerable bulk because of their powerful build, the deep penetration of their bite, attested by their long canines.[5] Confirmed prey species include hog deer, slow loris, brush-tailed porcupine, Malayan pangolin and Indochinese ground squirrel.[10] Known prey species in China include barking deer and pheasants.[20] They most likely also hunt civets, birds, and domestic livestock. Captive clouded leopards also eat eggs and some vegetation.[citation needed]

Reproduction

Both males and females average 26 months at first reproduction. Estrus last 6 days in average, estrus cycle averages 30 days. After a gestation period of 93±6 days females give birth to a litter of one to five, most often three cubs.[21]

Initially, the young are blind and helpless, much like the young of many other cats, and weigh from 140 to 280 grams (4.9 to 9.9 oz). Unlike adults, the kittens' spots are "solid" — completely dark rather than dark rings. The young can see within about 10 days of birth, are active within five weeks, and are fully weaned at around three months of age. They attain the adult coat pattern at around six months, and probably become independent after around ten months. Females are able to bear one litter each year.[6]

In captivity they have an average lifespan of 11 years. One individual has lived to be almost 17 years old.[22]

Threats

Many of the remaining forest areas are too small to ensure the long-term persistence of clouded leopard populations.[18] They are threatened by habitat loss following large–scale deforestation and commercial poaching for the wildlife trade. Skins, claws and teeth are offered for decoration and clothing, bones and meat as substitute for tiger in traditional Asian medicines and tonics, and live animals for the pet trade. Few poaching incidents have been documented, but all range states are believed to have some degree of commercial poaching. In recent years, substantial domestic markets existed in Indonesia, Myanmar and Vietnam.[23][24]

In Myanmar, 301 body parts of at least 279 clouded leopards, mostly skins and skeletons, were observed in four markets surveyed between 1991 to 2006. Three of the surveyed markets are situated on international borders with China and Thailand, and cater to international buyers, although clouded leopards are completely protected under Myanmar's national legislation. Effective implementation and enforcement of CITES is considered inadequate.[25]

Conservation

A clouded leopard resting atop a tree trunk at the Toronto Zoo.

Neofelis nebulosa is listed in CITES Appendix I and protected over most of its range. Hunting is banned in Bangladesh, China, India, Malaysia, Myanmar, Nepal, Taiwan, Thailand, and Vietnam. It is not legally protected outside Bhutan's protected areas. Hunting is regulated in Laos. No information about its protection status is available from Cambodia.[21] These bans, however, are poorly enforced in India, Malaysia, and Thailand.[23]

In the United States the clouded leopard is listed as endangered under the Endangered Species Act, further prohibiting trade in the animals or any parts or products made from them.[1]

In captivity

Early captive breeding programs involving clouded leopards were met with little success, largely due to ignorance of courtship activity among these cats in the wild. Experience has taught keepers that introducing pairs of clouded leopards at a young age gives opportunities for the pair to bond and breed successfully. Introducing pairs as older adults may cause the animals such stress that the male may kill the female.[7] Modern breeding programs involve carefully regulated introductions between prospective mating pairs and take into account the requirements for enriched enclosures. Stimulating natural behaviour by providing adequate space to permit climbing minimizes stress. This, combined with a feeding program that fulfills the proper dietary requirements, has promoted more successful breeding in recent years.[citation needed]

In March 2011, two breeding females at the Nashville Zoo at Grassmere in Nashville, Tennessee gave birth to three cubs, which are being raised by zookeepers. Each cub weighed a half pound.[26] In June 2011, two cubs were born at the Point Defiance Zoo & Aquarium in Tacoma, Washington. The breeding pair was brought from the Khao Kheow Open Zoo in Thailand in an ongoing education and research exchange program.[27] Four cubs were born at the Nashville Zoo in 2012.[28]

As of December 2011, 222 clouded leopards are believed to exist in zoos.[29]

Cultural influence

The Rukai people of Taiwan consider the clouded leopard to be their spiritual ancestor who led them to their homeland.[30]

Etymology

The scientific name of the genus Neofelis is a composite of the Greek word νεο- meaning "new", and the Latin word feles meaning "cat", so it literally means "new cat."[31][32]

References

  1. ^ a b Wozencraft, W. C. (2005). "Order Carnivora". In Wilson, D. E.; Reeder, D. M. Mammal Species of the World (3rd ed.). Johns Hopkins University Press. p. 545. ISBN 978-0-8018-8221-0. OCLC 62265494. http://www.bucknell.edu/msw3/browse.asp?id=14000222. 
  2. ^ a b c Sanderson, J., Khan, J.A., Grassman, L., Mallon, D.P. (2008). "Neofelis nebulosa". IUCN Red List of Threatened Species. Version 2011.2. International Union for Conservation of Nature. http://www.iucnredlist.org/apps/redlist/details/14519. 
  3. ^ Buckley-Beason, V.A., Johnson, W.E., Nash, W.G., Stanyon, R., Menninger, J.C., Driscoll, C.A., Howard, J., Bush, M., Page, J.E., Roelke, M.E., Stone, G., Martelli, P., Wen, C., Ling, L.; Duraisingam, R.K., Lam, V.P., O'Brien, S.J. (2006). "Molecular Evidence for Species-Level Distinctions in Clouded Leopards". Current Biology 16 (23): 2371–2376. doi:10.1016/j.cub.2006.08.066. PMID 17141620. 
  4. ^ Kitchener, A.C., Beaumont, M.A., Richardson, D. (2006). "Geographical Variation in the Clouded Leopard, Neofelis nebulosa, Reveals Two Species". Current Biology 16 (23): 2377–2383. doi:10.1016/j.cub.2006.10.066. PMID 17141621. 
  5. ^ a b c Pocock, R.I. (1939) The Fauna of British India, including Ceylon and Burma. Mammalia. – Volume 1. Taylor and Francis, Ltd., London. Pp 247–253
  6. ^ a b c d e Sunquist, M.; Sunquist, F. (2002). Wild cats of the World. Chicago: University of Chicago Press. pp. 278–284. ISBN 0-226-77999-8. 
  7. ^ a b "Felid TAG Clouded Leopard Factsheet". Smithsonian National Zoological Park. http://nationalzoo.si.edu/ConservationAndScience/AZA/FelidTAG/Species/Factsheets/clouded-leopard.cfm. Retrieved 2009-06-06. 
  8. ^ Biswas, B., Ghose, R.K., Ghosal, D.K. (1985) Progress report 2 on pilot survey of the WWF-India / Zoological survey of India collaborative project on the status survey of the lesser cats in eastern India. Zoological Survey of India, Calcutta.
  9. ^ Rabinowitz, A.R., Walker, S.R. (1991) The carnivore community in a dry tropical forest mosaic in Huai Kha Khaeng Wildlife Sanctuary, Thailand. Journal of Tropical Ecology 7: 37−47.
  10. ^ a b c Grassman Jr., L. I.,Tewes, M. E., Silvy, N. J., Kreetiyutanont, K. (2005) Ecology of three sympatric felids in a mixed evergreen forest in North-central Thailand. Journal of Mammalogy 86: 29–38.
  11. ^ Choudhury, A.U. (1992) The Clouded leopard in Assam. Oryx 27 (1): 51–53.
  12. ^ Choudhury, A.U. (1996) The clouded leopard. Cheetal 35 (1-2): 13–18.
  13. ^ Choudhury, A. U. (2003) The cats in North East India. Cat News 39: 15–19.
  14. ^ Dinerstein, E. and Mehta, J.N. (1989) The clouded leopard in Nepal. Oryx 23(4): 199–201.
  15. ^ Sunquist, M. E., Sunquist, F. (2009) Family Felidae (Cats) In: Wilson, D. E., Mittermeier, R. A. (eds.) Handbook of the Mammals of the World - Volume 1 Carnivores. Lynx Edicions in association with Conservation International and IUCN. ISBN 978-84-96553-49-1
  16. ^ Anonymous. (1996) The mystery of the Formosan clouded leopard. Cat News 24: 16.
  17. ^ Hemmer, H. (1968). Untersuchungen zur Stammesgeschichte der Pantherkatzen (Pantherinae) II: Studien zur Ethologie des Nebelparders Neofelis nebulosa (Griffith 1821) und des Irbis Uncia uncia (Schreber 1775). [Studies of the philogenetic history of the Pantherinae II: Research into the ecology of the clouded leopard and snow leopard.] Veröffentlichungen Zoologische Staatssammlung München 12:155–247.
  18. ^ a b Wilting, A., Fischer, F., Bakar, S.A., Linsenmair, K.E. (2006) Clouded leopards, the secretive top-carnivore of South-East Asian rainforests: their distribution, status and conservation needs in Sabah, Malaysia. BMC Ecology 2006, 6 (16): 1–13.
  19. ^ Austin, S. C., Tewes, M. E. (1999) Ecology of the clouded leopard in Khao Yai National Park, Thailand. Cat News 31: 17–18.
  20. ^ Feng, L., Lin, L., Zhang, L., Wang, L., Wang, B., Luo A., Yang, S., Smith, J. L. D., Luo S. J. and Zhang, L. (2008) Evidence of wild tigers in southwest China – a preliminary survey of the Xishuangbanna National Nature Reserve. Cat News 48: 4–6.
  21. ^ a b Nowell, K., Jackson, P. (1996). Clouded Leopard in: Wild Cats: status survey and conservation action plan. IUCN/SSC Cat Specialist Group, Gland, Switzerland
  22. ^ Achariyo, L.N., Mishra, Ch. G. (1981). "Some notes on the longevity of two species of Indian wild cats in captivity". Journal of the Bombay Natural History Society 78: 155. 
  23. ^ a b Nowell, K. (2007) Asian big cat conservation and trade control in selected range States: evaluating implementation and effectiveness of CITES Recommendations. A TRAFFIC Report, June 2007
  24. ^ "Clouded Leopard — Neofelis nebulosa". Defenders of Wildlife. http://www.defenders.org/wildlife_and_habitat/wildlife/clouded_leopard.php. 
  25. ^ Shepherd, C. R., Nijman, V. (2008) The wild cat trade in Myanmar. TRAFFIC Southeast Asia, Petaling Jaya, Selangor, Malaysia.
  26. ^ http://www.nashvillezoo.org/scripts/view_photo.asp?pressID=174
  27. ^ http://www.pdza.org/page.php?id=503
  28. ^ "The Nashville Zoo celebrates two sets of clouded leopard cubs". Associated Press (al.com). March 29, 2012. http://www.al.com/living/index.ssf/2012/03/the_nashville_zoo_celebrates_t.html. 
  29. ^ Musi, V. J. (2011). "Cats in Crisis". National Geographic 202 (6): foldout (between 90–91). 
  30. ^ "Cats from A to Z, The Clouded Leopard". Natural History Museum of Los Angeles County. http://www.nhm.org/cats/. Retrieved 2009-06-06. [dead link]
  31. ^ Perseus Digital Library. Greek Dictionary νεο Headword Search Result
  32. ^ Perseus Digital Library. Latin Dictionary feles Headword Search Result

External links