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Description |
Geographic Range [top]
Range Description: Brandt (1974) listed this species distribution as Thailand, Lao PDR and "probably Burma [Myanmar]". However, a revision by Köhler and Glaubrecht (2006) separated this species from another closely related species (Brotia dautzenbergiana) and found that it was restricted to just two localities "in the vicinity of Mae Sot", Kamphaeng Phet province, northern Thailand. The two localities this species is known from are most likely forming an area of occupancy of less than 20 km2 (F. Köhler pers.comm. 2010).
Countries occurrence:
Native:
Thailand
Additional data:
? Estimated area of occupancy (AOO) - km2: 20
? Number of Locations: 2
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: This species is not common, and has an uneven distribution. However, where present it is abundant. (F. Köhler pers.comm. 2010).
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: This species inhabits cold, well oxygenated and fast-flowing rivers and streams and is usually found buried in sand or mud, or under rotten leaves or wood where it feeds on detritus (Köhler and Glaubrecht 2006).This species is strictly associated with limestone substrates in creeks and streams of the Moei River system only (F. Köhler pers. comm. 2010).
Systems: Freshwater
Threats [top]
Major Threat(s): Pollution and habitat destruction are likely to affect nearly all rivers in Thailand, as human pressures on freshwater systems are intense (T. v. Rintelen pers. comm. 2011). It is plausible that the Moei river system will also be subject to such threats, particularly damming, and sedimentation and pollution as a result of agricultural effluents, even though specific threats to this species are currently not known.
Conservation Actions [top]
Conservation Actions: There are no species-specific conservation measures in place for this species. Further research on this species exact distribution and population status is recommended.
Citation: Rintelen, T. 2011. Brotia citrina. The IUCN Red List of Threatened Species 2011: e.T189409A8727865. http://dx.doi.org/10.2305/IUCN.UK.2011-2.RLTS.T189409A8727865.en. Downloaded on 27 April 2018.
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