Mainland Clouded Leopard
Neofelis nebulosa
K. Varma
Description
The clouded leopard was previously considered a single species but has recently been divided into two based on molecular (mitochondrial DNA, microsatellites, and chromosomal) and morphological (pelage and craniodental) analyses. The Mainland clouded leopard (Neofelis nebulosa) occurs on the South-east Asian Mainland, while the Sunda clouded leopard (Neofelis diardi) inhabits only the islands of Sumatra and Borneo. Prior to this division into two species, four subspecies of N. nebulosa were described:
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Neofelis nebulosa diardi inhabiting Borneo, Sumatra, and the Batu Islands (now recognised as N. diardi)
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N. n. macrosceloides occurring in Bhutan, Burma, India, and Nepal
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N. n. nebulosa recorded in Cambodia, China, Laos, Peninsular Malaysia, Thailand, and Vietnam and
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N. n. brachyura, endemic to the island of Taiwan
The data currently available do not support the distinction of any subspecies of the Mainland clouded leopard, and it is therefore considered a monotypic species.
The Mainland clouded leopard is intermediate in size, comparable to a small leopard, with relatively short legs and a tail nearly as long as its head and body. Males are larger than females. Distinctive physical traits include short, sturdy legs ending in broad paws, with hind legs noticeably longer than forelegs. Its exceptionally long, plush tail—typically equal to head–body length—provides excellent balance on narrow tree branches. The skull is elongated, and, along with its sister species, the Sunda clouded leopard, it possesses canine teeth that are disproportionately longer than those of any other living felid.
The coat pattern is another defining feature. It displays cloud-like rosettes with dark outlines and lighter centres on a pale background, giving the species its name. Background coloration varies from yellowish-brown, ochre, tawny, silvery, or dark gray to earthy brown. Two bold stripes run along the spine, and the tail bears six bands. The underside is white or pale tawny, while the limbs and underbelly feature large black ovals. The back of the neck is marked with two thick black bars.
Behaviourally and physically, the Mainland clouded leopard occupies a unique position between small and large cats. For instance, it cannot roar and only purrs like smaller cats, yet its feeding habits, grooming, and body postures resemble those of larger species.
Weight
16 - 23 kg
Body Length
69 - 108 cm
Tail Length
61 - 91 cm
Longevity
15 - 17 years
Litter Size
1 - 2 cubs
B. Cranke
IUCN (International Union for Conservation of Nature) 2021. Neofelis nebulosa. The IUCN Red List of Threatened Species. Version 2024-2
Status and Distribution
The Mainland clouded leopard is listed as Vulnerable on the IUCN Red List and Endangered on Nepal’s National Red List. Scientific knowledge about this species in the wild remains limited. Although it may be locally common in parts of its range, population trends are poorly understood due to its elusive nature and preference for dense vegetation. Its habitat is fragmented, and global population estimates range from 1,600 to 29,000 mature individuals, though the actual number is likely closer to 3,700–5,580.
The species occurs across the eastern and southern Himalayan foothills in Nepal, through Bhutan and India, into Myanmar, southern China, Peninsular Malaysia, and throughout Indochina (Vietnam, Lao PDR, Thailand, and Cambodia). Severe declines have been recorded in China, Myanmar, and Vietnam. In China, its current status is poorly understood. Historically widespread south of the Yangtze River, recent records are scarce. It was once relatively common in Jiangxi and Anhui provinces and has been documented in Sichuan and Tibet’s Namcha Barwa region. A rough estimate for southwest China, based on surveys between 2005 and 2007, suggests about 70 individuals remain in southern Yunnan.
In Bangladesh, its presence is uncertain; it may persist in small numbers within remaining mixed evergreen forests. The subspecies formerly found on Taiwan is believed extinct, with the last confirmed record in 1983 and the last skin documented in 1989. Similarly, the species may be near extinction in Vietnam, where it has not appeared in camera-trap studies since 2013. In India, sightings have been reported from Arunachal Pradesh, Assam, Bihar, Meghalaya, Mizoram, Nagaland, Sikkim, Tripura, and northern West Bengal. Once widespread across Indochina and Peninsular Malaysia, the species now occupies mainly forested and protected areas, surviving in roughly 36% of its historic range.
In Bhutan, clouded leopards are mostly found in southern forested regions rather than the steep northern terrain, occurring both inside and outside protected areas. In Nepal, they range extensively across eastern regions, from the Terai plains to the Nepal–Tibet border, and westward to the Annapurna Conservation Area. In India, they are widely distributed in the northeast, reaching as far west as Valmiki Tiger Reserve. Population densities can be relatively high, with estimates of 4.7 and 5.1 individuals per 100 km² in Manas National Park and Dampa Tiger Reserve, respectively. In Bangladesh, small populations may persist in southeastern mountainous habitats. In Myanmar, despite large areas of suitable habitat, the species appears thinly but widely distributed across evergreen forests, with low numbers and absence in some seemingly suitable areas. In Lao PDR, clouded leopards have become very rare and likely extirpated from many forests; recent records from southern Lao PDR are lacking. In China, recent sightings are few, and the species seems confined to Yunnan Province near the borders with Lao PDR and Myanmar. In Thailand, clouded leopards remain relatively widespread across fragmented forests, though records from northern, northeastern, and southern regions are scarce. In Cambodia, they persist in protected areas such as the Cardamom Rainforest Landscape and Virachey National Park but are extremely rare elsewhere. In Vietnam, there are no recent records, suggesting possible extirpation. In Malaysia, the species remains relatively widespread, primarily within the Central Forest Spine.
Population density estimates vary significantly, as seen in Myanmar’s Htamanthi Wildlife Sanctuary, where figures range from 0.6 to 3.1 individuals per 100 km²—differences likely influenced by the presence or absence of tigers in these areas.
Habitat
The Mainland clouded leopard primarily inhabits dense evergreen forests and is most strongly associated with primary tropical rainforest. It also occurs in secondary and logged forests, coniferous forests, coastal hardwood forests, grasslands, and scrub. In Myanmar and Thailand, it has been reported from relatively open and dry tropical forests. Studies in Thailand indicate a preference for forested habitats over open areas.
The species has been recorded at elevations up to 1,450 m in the Himalayan foothills, 2,174 m in the Annapurna Conservation Area, 3,000 m in Taiwan, and 3,600 m in Bhutan. More recently, it was detected at an altitude of 4,500 m.
P. Meier
Ecology and Behaviour
The Mainland clouded leopard is solitary and mostly cathemeral (active at any time of day or night), with slightly higher activity at night and during twilight. It is highly secretive and remarkably arboreal, capable of climbing headfirst down vertical trunks and hanging from branches by its hind feet. It uses trees for resting and likely for foraging, though it also travels considerable distances on the ground.
In Thailand, male and female home ranges are similar, between 30 and 40 km², with core areas of 3–5 km². Home ranges overlap substantially among both sexes. The species marks territory with scent and may occur at higher densities where larger cats, such as tigers (Panthera tigris) and leopards (Panthera pardus), are less abundant.
Reproduction begins around 26 months of age for both sexes. Oestrus lasts about six days, the cycle is roughly 30 days, and gestation lasts 87–99 days. Age at last reproduction is typically 12–15 years. These data are based on captive studies conducted before the taxonomic split of N. nebulosa and N. diardi.
P. Meier
Prey
The Mainland clouded leopard preys on both arboreal and terrestrial vertebrates, including small deer, monkeys, squirrels, porcupines, pangolins, wild boar (Sus scrofa), and birds. Occasionally, it hunts domestic poultry and goats but rarely consumes carrion. Studies indicate a preference for primates such as pig-tailed macaques (Macaca nemestrina) and gibbons (Hylobates spp.), as well as muntjacs (Muntiacus spp.) and great argus pheasants (Argusianus argus). There is even a confirmed case of predation on a binturong (Arctictis binturong). In Thailand’s Phu Khieu National Park, prey includes hog deer (Axis porcinus), slow lorises (Nycticebus spp.), bush-tailed porcupines (Atherurus macrourus), Malayan pangolins (Manis javanica), Indochinese ground squirrels (Menetes berdmorei), and other species.
Main Threats
Major threats include habitat loss and fragmentation due to deforestation and agricultural expansion. Between 2000 and 2018, Mainland clouded leopard habitat strongholds declined by an estimated 34%. Southeast Asia faces the fastest deforestation rates, primarily driven by oil palm plantations. Habitat degradation and loss of connectivity are significant concerns, particularly in Myanmar due to infrastructure development and in Nepal from hydropower projects and rural roads.
Prey depletion from overhunting for local meat markets is another serious threat, especially in Indochina and China, where many prey species are themselves threatened. However, the greatest driver of population decline is illegal hunting. The species is targeted for its decorative fur, teeth, and bones for traditional medicine and is frequently caught in indiscriminate snares. Increased snaring in Cambodia and Lao PDR has likely accelerated population declines.
Illegal wildlife trade further threatens the species. Large numbers of skins have been observed in markets across Southeast Asia, including Tachilek (Thailand–Myanmar border) and Mong La (Myanmar–China border). Although fewer records have been reported since 2010, this may reflect reduced detectability rather than reduced trade. Meat is used in exotic dishes, and live animals are occasionally trafficked for the pet trade. Nepal’s National Red List also identifies livestock depredation and retaliatory killing as secondary threats.
P. Meier
Conservation Effort and Protection Status
The Mainland clouded leopard is listed in CITES Appendix I and protected by national legislation across most of its range. Hunting is prohibited in Bangladesh, Cambodia, China, India, Malaysia, Myanmar, Nepal, Taiwan, Thailand, and Vietnam, while Lao PDR regulates hunting. Bhutan offers no legal protection outside protected areas. The species occurs in numerous protected areas throughout its range.
Effective conservation requires regional management plans, habitat protection, and stronger law enforcement against illegal hunting. Public awareness campaigns are essential; in China, environmental education programs for schoolchildren and adults have been implemented to improve species awareness.
Further research is needed on ecology, distribution, and population status. Camera trapping has improved understanding of its range, but basic ecological data remain scarce. Enhanced management of protected areas using tools such as the Zero-Poaching Toolkit and achieving Conservation Assured Tiger Standards (CA|TS) can significantly reduce threats. Given its presence in transboundary landscapes, the species should also be included in cross-border conservation planning.
