The type locality and the data from China suggest that this species might be associated with highland terrain and higher altitudes than T. kanchil, but this is no more than speculation at present. The genus Tragulus has an odd northerly distribution within South-east Asia, being entirely unrecorded from Myanmar (except the far south) (Tun Yin 1967, Lynam 2003, Meijaard and Groves 2004; Shan state, adjacent to highland areas of northern Lao PDR and Thailand which hold the genus, has not been well investigated and may yet be found to hold the species), apparently absent from the east of Lao PDRâs northern highlands (and the central northern highlands remain to be investigated; Duckworth et al. 1999: 269), present in northern Viet Nam but quite probably restricted to the lowlands (see above), and penetrating China only in the far southwest, in Xishuangbanna prefecture of Yunnan Province (Smith and Xie 2008). The T. williamsoni holotype appears to be the only Tragulus record critically identified to species from this extensive area, making the absence of confirmed T. kanchil records biologically uninformative.
Habitat and Ecology
IUCN Red List Assessment
Red List Category
Red List Criteria
It is likely that even modest amounts of current information would allow categorization of the species, and that it would warrant either Near Threatened or one of the threatened categories.
Because of the species' presumed external similarity to T. kanchil, it will be necessary to collect specimens in order to distinguish the two species. Most unfortunately it seems likely that while data collected from camera-trapping studies will be helpful in establishing the genusâs distribution and conservation status, until specimen-based clarification of ranges, particularly the extent of geographic and ecological overlap, is clear, species-specific conclusions will not be possible from this method. Similarly, hunting studies such as those of Johnson et al. (2003) which do not systematically collect voucher specimens will be of limited use in determining this species' conservation needs.
Because this species might have a small range it might therefore be a conservation priority and clarification of chevrotain status in degraded and fragmented forests and in plantations in its possible range is urgently needed.
Many protected areas exist within the northern highlands of South-east Asia. Whether any hold the species is as yet unclear. Few of those that might do are effectively reigning in hunting levels.
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