Ravenea lakatra

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	LILIOPSIDA	ARECALES	PALMAE

Scientific Name:	Ravenea lakatra
Species Authority:	(Jum.) Beentje
Synonym/s:	Louvelia lakatra Jum.

Assessment Information [top]

Red List Category & Criteria:

Critically Endangered D ver 3.1

Year Published:

2012

Assessor/s:

Rakotoarinivo, M. & Dransfield, J.

Reviewer/s:

Baker, W.J. & Beentje, H.J.

Contributor/s:

Justification:
The palm has a large distribution range (extent of occurrence is over 58,000 km²) but it is not common in any of the current known sites. The population is estimated to only number 30 mature trees. The leaves of this species are exploited by local people for weaving hats and individual palms may be pruned into juvenility by constant harvest of the emerging leaves. This species is listed as Critically Endangered based on the small population size, this is a genuine deterioration since the 1998 listing of Endangered.

History:

1998	–	Endangered
1997	–	Endangered (Walter and Gillett 1998)

Geographic Range [top]

Range Description:	Endemic to east Madagascar from between Masoala and Vangaindrano.
Countries:	Native: Madagascar
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This species has an extremely wide range but at each of the known sites there are only a few individuals. The population is estimated to number fewer than 30 mature trees. The population is declining.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Occurs in moist lowland forest on slight mid slopes or ridge crests from 50 to 1,200 m..
Systems:	Terrestrial

Threats [top]

Major Threat(s):	The main threats to this species are habitat loss through clearance for shifting agriculture and logging and harvesting of the leaves to be used in weaving. Excessive harvesting impacts the reproductive output of the species.

Major Threat(s):

The main threats to this species are habitat loss through clearance for shifting agriculture and logging and harvesting of the leaves to be used in weaving. Excessive harvesting impacts the reproductive output of the species.

Conservation Actions [top]

Conservation Actions:	Protected in Masoala, Makira and Andasibe. Regulation and monitoring of the harvest may be required.

Conservation Actions:

Protected in Masoala, Makira and Andasibe. Regulation and monitoring of the harvest may be required.

Bibliography [top]

	Dransfield, J. 1996. Palms in Masoala. Royal Botanic Gardens, Kew. Dransfield, J. and Beentje, H. 1995. The Palms of Madagascar. Royal Botanic Gardens Kew and The International Palm Society, Richmond. IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.2). Available at: http://www.iucnredlist.org. (Accessed: 17 October 2012).

Dransfield, J. 1996. Palms in Masoala. Royal Botanic Gardens, Kew.

Dransfield, J. and Beentje, H. 1995. The Palms of Madagascar. Royal Botanic Gardens Kew and The International Palm Society, Richmond.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.2). Available at: http://www.iucnredlist.org. (Accessed: 17 October 2012).

Citation:	Rakotoarinivo, M. & Dransfield, J. 2012. Ravenea lakatra. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
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