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Description |
Geographic Range [top]
Range Description: This species is known only from limestone outcrops of Khao Sam Roi Yot near to the town of Pranburi, Prachuap Khiri Khan province, Thailand. Restricted to the general area of the Khao Sam Roi Yot National Park between Pran Buri and Kui Buri. Occurs at low elevations from 5 to 30 m asl.
Countries occurrence:
Native:
Thailand
Additional data:
? Estimated area of occupancy (AOO) - km2: 20
? Number of Locations: 1
? Lower elevation limit (metres): 5
? Upper elevation limit (metres): 30
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: Seems to be locally common with population estimated to be between 2,500 and 10,000 mature plants.
Current Population Trend: Stable
Additional data:
? Number of mature individuals: 2500-10000
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: This species grows in dense thickets in creviced jagged limestone outcrops with scant or no soil rising above mangrove estuaries. Plants grow on steep limestone slopes and cliffs where plants are surrounded by low scrub vegetation adapted to drought (Ficus, Euphorbia and Dracaena spp.) Plants grow in full sun or in partial shade. The outcrops seem to consist of two different kinds of limestone with the plants avoiding the hills with a reddish coloured rock. This may suggest that the plants have specific substrate preferences.
Systems: Terrestrial
Generation Length (years): 40
Threats [top]
Major Threat(s): This plant is threatened by local plant collectors.
Conservation Actions [top]
Conservation Actions: This species is listed on Appendix II of the CITES Appendices. Populations of C. pranburiensis occur in the Khao Sam Roi Yot National Park.
Citation: Hill, K.D. 2010. Cycas pranburiensis. The IUCN Red List of Threatened Species 2010: e.T42063A10641032. http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T42063A10641032.en. Downloaded on 01 December 2017.
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