Ravenea delicatula 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arecales Arecaceae

Scientific Name: Ravenea delicatula Rakotoarinivo

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 a single location to the east of Andilamena, in an area estimated to be less than 6 kmĀ² (extent of occurrence and are of occupancy). The forest fragment where the palm grows is not protected. Even though the place is not easy to access, the forest is being destroyed because the local population are clearing the forest to cultivate hill rice. Moreover, numerous finds of rubies have been made at Behorefo, nearby. This palm is also threatened by many holes dug by miners inside the forest in order to look for minerals. This species meets the requirements for listing as Critically Endangered.

Geographic Range [top]

Range Description:Endemic to Madagascar where it is known from a single site to the east of Andilamena.
Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:4
Number of Locations:1
Lower elevation limit (metres):700
Upper elevation limit (metres):800
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:About 30 mature individuals are known and the population 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 montane forest with bamboos and pandans, the ground is covered by moss which forms a continuous lawn in places. The species occurs in a narrow altitudinal range between 700 and 800 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): The main threats to this species are habitat loss through clearance for shifting and permanent agriculture (especially rice fields) and logging and habit clearance and disturbance due to mining exploitation.

Conservation Actions [top]

Conservation Actions: the only know site for this species is not in a protected area, and protection is urgently needed.

Citation: Rakotoarinivo, M. & Dransfield, J. 2012. Ravenea delicatula. The IUCN Red List of Threatened Species 2012: e.T195916A2432263. . Downloaded on 20 September 2018.
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