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Description |
Geographic Range [top]
Range Description:
The species is thought to be endemic to the Kaek River (central Thailand; a tributary of the Nan River, Chao Phraya basin) and was only found in a section of the river between Sopha Falls (65 km east of Phitsanulok) and the Sri Dit Falls in the upstream region, about 92 km east of Phitsanulok. It was reported from a tributary of the Kaek River, a locality on the Nam Huai Chieng, but this has not been confirmed in recent surveys (F. Köhler pers. comm. 2011), and Brotia species from this tributary are though to have been eradicated by habitat degradation.
Countries occurrence:
Native:
Thailand
Additional data:
? Estimated area of occupancy (AOO) - km2: 100
? Number of Locations: 2
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: Population trends are unknown but the species is rare (F. Köhler pers. comm. 2011).
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology:
It was found in comparatively quiet parts of the river on rocky and sandy substrates.
Systems: Freshwater
Movement patterns: Not a Migrant
Use and Trade [top]
Use and Trade: This species is not utilised.
Threats [top]
Major Threat(s):
The species is vulnerable to water pollution and sedimentation. As with other Brotia species, it requires clean water. Parts of the range lie in a national park, however this species is uncommon and so may be vulnerable to future changes in water quality.
Conservation Actions [top]
Conservation Actions: There are no specific conservation actions in place for this species. Conservation actions include the implementation of catchment management plans to keep the river water well oxygenated and clean.
Citation: Simonis, J. & Köhler, F. 2012. Brotia subgloriosa. The IUCN Red List of Threatened Species 2012: e.T184870A1759771. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T184870A1759771.en. Downloaded on 03 May 2018.
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