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Description |
Geographic Range [top]
Range Description: The species has been recorded from two waterfalls in a river in northern Thailand and from San stream in Kaeng Samsawan, Phu Rua, Loei (northeastern Thailand).
Countries occurrence:
Native:
Thailand
Additional data:
? Estimated area of occupancy (AOO) - km2: 0.01
? Number of Locations: 2
? Lower elevation limit (metres): 400
? Upper elevation limit (metres): 500
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: The global population is small but number of individuals or trends are not known.
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: The species only occurs attached to rocky substrates in river rapids and waterfalls.
Systems: Freshwater
Use and Trade [top]
Use and Trade: No information available.
Threats [top]
Major Threat(s): San stream, where one of the two known subpopulations is found, flows in agricultural land (M. Kato pers. comm. 2011). Hence, any harmful activity (i.e., pesticide spraying) is very likely to affect the known subpopulation in this particular site.
Conservation Actions [top]
Conservation Actions: Part of the species global population is found within Thung Salaeng Luang National Park. More research is needed to determine ecology, population trends and possible threats to this species.
Citation: Juffe Bignoli, D. 2011. Hanseniella heterophylla. The IUCN Red List of Threatened Species 2011: e.T194772A8899325. http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T194772A8899325.en. Downloaded on 12 January 2018.
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