Musk Deer in Bhutan

Musk deer (genus Moschus) are small, solitary, primitive deer-like ungulates restricted to the highlands of central, eastern and southern Asia. The Bhutanese animals have historically been reported in the literature as Moschus chrysogaster, the alpine musk deer, but recent mitochondrial genetic work suggests that the populations of the Himalaya proper — Nepal, Bhutan and northern India — are more accurately referable to Moschus leucogaster, the Himalayan or white-bellied musk deer, with M. chrysogaster in the strict sense being a Tibetan-plateau species. Both species names appear in current Bhutanese reports, often interchangeably, and at least two named taxa are documented from Bhutan's high country.^[1][2]

The IUCN assesses the alpine musk deer (M. chrysogaster) as Endangered, with a decreasing population trend driven primarily by poaching for the male's musk pod. In Bhutan the animal occurs in conifer forest from about 2,500 to 4,000 metres, with documented populations in Jigme Dorji National Park, Wangchuck Centennial National Park, Sakteng Wildlife Sanctuary, Bumdeling Wildlife Sanctuary and Phrumshengla National Park. Population numbers in Bhutan have not been fully quantified, but published Bhutanese surveys document a steep decline relative to historical accounts, attributed mainly to cross-border poaching pressure.^[3][4]

This article covers identification and taxonomy, the species' distribution and habitat in Bhutan, the musk pod and the long history of its commercial exploitation, threats and the institutional response of the Department of Forests and Park Services.

Identification and taxonomy

Musk deer are small ungulates around 50 to 60 centimetres at the shoulder, with a hunched posture, long hindlegs and a coarse grey-brown to dark-brown coat speckled with paler patches. They lack antlers; instead, the male carries a pair of long, downward-curved upper canines that protrude past the lower lip. Females and young lack the prominent canines. The distinguishing soft-tissue feature is the male's musk gland, an abdominal pouch between the umbilicus and the genitalia, which is the source of the commercial musk product.^[2][5]

Bhutan's populations have been reported under both M. chrysogaster and M. leucogaster. Studies in Jigme Dorji National Park have suggested that both taxa may co-occur, while Sakteng work has reported the animal as M. chrysogaster. The taxonomic question is unresolved in published Bhutanese sources and is likely to require additional genetic sampling to settle.^[3][6]

Distribution and habitat in Bhutan

The species occupies dense conifer forest with a dwarf bamboo and rhododendron understorey, mainly between about 2,500 and 4,000 metres. Reliable populations are reported in Jigme Dorji National Park (the principal western stronghold), Wangchuck Centennial National Park, Sakteng Wildlife Sanctuary in the east, and the Bumdeling Wildlife Sanctuary alpine forest belt. Across the country the species is found in scattered, fragmented sub-populations rather than as a continuous distribution; this fragmentation is a recognised feature of the wider Himalayan range and is amplified in Bhutan by the country's deeply incised valley topography.^[3][4][7]

The musk pod and the trade

The male's musk gland produces a waxy brown secretion that has been used for centuries in the international perfumery industry and across South Asian and East Asian traditional medicine systems. Historically, musk fetched extraordinary prices on the international market — at the height of the trade in the late 20th century, musk pods were among the most valuable commodities by weight passing through South Asian smuggling networks. Although natural musk has been very largely replaced by synthetic substitutes in commercial perfumery, the residual demand from traditional-medicine markets, particularly in East Asia, has continued to drive poaching pressure on wild populations.^[5][8]

Poaching is typically conducted by snaring, a method that is non-selective and kills females and young along with the targeted males. Bhutanese surveys in Jigme Dorji National Park have repeatedly documented snare-related mortality and the reuse of historical poaching trails by cross-border parties.^[3]

Threats and decline

The principal threat to Bhutan's musk deer is poaching for the musk pod, with secondary pressures from habitat loss to grazing and infrastructure, free-ranging dogs and climate-driven shifts in the bamboo and conifer zones. The IUCN's assessment notes that the Himalayan and alpine musk deer populations have declined to roughly half of their historical levels in recent decades, with the surviving populations increasingly confined to protected areas.^[1][2]

Institutional response

The species is listed in Schedule I (totally protected) under the Forest and Nature Conservation Rules and Regulations of Bhutan. The Department of Forests and Park Services conducts anti-poaching patrols within the high-altitude protected areas, and Jigme Dorji National Park has run focused musk-deer patrols and snare-removal operations since the early 2000s. Camera-trapping in Wangchuck Centennial National Park, conducted with WWF support, has provided some of the country's clearest documentation of the species at altitude. Bhutan's overall posture on the species — total protection within national legislation, and refusal to permit any captive musk farming — is among the more stringent in the species' range.^[3][9]

References

1. Moschus chrysogaster — IUCN Red List
2. Alpine musk deer — Wikipedia
3. Winter Distribution and Poaching of Musk Deer in Jigme Dorji National Park, Bhutan
4. The distribution, status and conservation of the Himalayan Musk Deer in Sakteng Wildlife Sanctuary — Global Ecology and Conservation
5. White-bellied musk deer (Moschus leucogaster) — Wikipedia
6. A brighter shade of future climate on Himalayan musk deer Moschus leucogaster — Scientific Reports
7. Wangchuck Centennial National Park snow leopard and prey survey — Bhutan
8. On the Scent: Conserving Musk Deer — TRAFFIC / IUCN
9. Forest and Nature Conservation Rules and Regulations of Bhutan, 2023