Ravenea beentjei 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arecales Arecaceae

Scientific Name: Ravenea beentjei Rakotoarin. & J. Dransf.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v)+2ab(iii,v); D ver 3.1
Year Published: 2012
Date Assessed: 2010-12-17
Assessor(s): Rakotoarinivo, M. & Dransfield, J.
Reviewer(s): Baker, W.J., Beentje, H.J. & Bachman, S.
Known only from one locality in Vondrozo, where it is restricted to frequently flooded areas. The extent of occurrence and area of occupancy are estimated to be less than 7 kmĀ², and only about 40 mature individuals have been recorded in the field. The forest of Vondrozo is managed by the local community but logging operations still occur, hence there is continuing decline in the extent and quality of the habitat. The species therefore qualifies for a Critically Endangered listing. Conservation action is urgently required to prevent this species from going extinct.

Geographic Range [top]

Range Description:Known only from Vondrozo forest in southeastern Madagascar.
Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:5
Number of Locations:1
Lower elevation limit (metres):600
Upper elevation limit (metres):650
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population size is estimate to comprise only 40 mature individuals and is declining.
Current Population Trend:Decreasing
Additional data:
Continuing decline of mature individuals:Yes
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Occurs in lowland humid forest where it grows in valleys and swampy areas in a narrow altitudinal range between 600 and 650 m.
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: There is no information on use of this species.

Threats [top]

Major Threat(s): Threats to this species include habitat loss through clearance for shifting agriculture and logging, especially selective wood exploitation. There is also loss and disturbance of the habitat by mining activities.

Conservation Actions [top]

Conservation Actions: Does not occur in any protected areas. Conservation actions are urgently required to secure the future of this species.

Citation: Rakotoarinivo, M. & Dransfield, J. 2012. Ravenea beentjei. The IUCN Red List of Threatened Species 2012: e.T195949A2435517. . Downloaded on 20 September 2018.
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