Cycas tansachana
– Critically Endangered
Taxonomy
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Kingdom:
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PLANTAE
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Phylum:
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TRACHEOPHYTA
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Class:
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CYCADOPSIDA
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Order:
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CYCADALES
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Family:
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CYCADACEAE
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Scientific Name:
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Cycas tansachana
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Species Authority:
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K.D.Hill & S.L.Yang
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Assessment Information
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Red List Category & Criteria:
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CR A2c; B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) ver 3.1 (2001)
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Year Assessed:
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2003
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Assessor/s:
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Hill, K.D.
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Evaluator/s:
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Donaldson, J.S. & Hill, K.D. (Cycad Red List Authority)
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Geographic Range
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Range Description:
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Known only from limestone outcrops near Saraburi.
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Countries:
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Native:
Thailand
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Population
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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Limestone outcrops growing in full sun or part shade in crevices on bare rock.
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System:
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Terrestrial
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Threats
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Threats:
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Apparently quite restricted in occurrence and under severe pressure from plant collectors and limestone mining operations, this species should be regarded as highly threatened
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List of Threats:
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| 1.3.1 | Habitat Loss/Degradation - Extraction - Mining (ongoing) |
| 3.5.2 | Harvesting (hunting/gathering) - Cultural/scientific/leisure activities - Sub-national/national trade (ongoing) |
| 3.5.3 | Harvesting (hunting/gathering) - Cultural/scientific/leisure activities - Regional/international trade (ongoing) |
| 9.9 | Intrinsic factors - Restricted range (ongoing) |
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Conservation Actions
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Conservation Actions:
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Listed on CITES Appendix II.
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Bibliography
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Bibliography:
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Donaldson, J.S. (ed.) 2003. Cycads. Status Survey and Conservation Action Plan. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
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