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Description |
Geographic Range [top]
Range Description: Malaysia: Known from Bukit Timah Nature Reserve, various parts of the Central Catchment Nature Reserve, especially in the Nee Soon Swamp Forest. Not known from outside Singapore.
Countries occurrence:
Native:
Singapore
Additional data:
? Number of Locations: 3
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: There is no information on population size, abundance, or trends.
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: This species prefers slower parts of shaded streams, sometimes they are found under rocks, but usually among leaf litter with muddy substrates. It is not an obligate highland crab, it can be common in lowland secondary forest streams. Predominantly feeds on dead leaves and freshwater oligochaete worms (Ng 1988).
Systems: Freshwater
Threats [top]
Major Threat(s): Loss of forest cover and water pollution.
Conservation Actions [top]
Conservation Actions: The conservation and monitoring of pollution levels of the stream systems in Bukit Timah Hill and the Nee Soon Swamp Forest offer the best chance for maintaining good populations of this species.
Citation: Esser, L. and Cumberlidge, N. 2008. Irmengardia johnsoni. The IUCN Red List of Threatened Species 2008: e.T134929A4037595. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T134929A4037595.en. Downloaded on 04 May 2017.
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