Dypsis tokoravina 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arecales Palmae

Scientific Name: Dypsis tokoravina
Species Authority: Beentje

Assessment Information [top]

Red List Category & Criteria: Critically Endangered 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., Baker, W.J. & Beentje, H.J.
Known from three sites but the number of individuals is very low in each locality, the population is estimated to be fewer than 30 mature individuals in total. The species is targeted by seed collectors hence there is continuing decline in mature individuals. Using the restricted range information, this species would qualify for listing as Endangered, however, because of the very small population size it qualifies instead for a Critically Endangered listing.
Previously published Red List assessments:
1998 Endangered (E)

Geographic Range [top]

Range Description:Endemic to the area around the Bay of Antongil, from Mananara Avaratra and Masoala Peninsula and to Mahavelona, north of Toamasina.
Countries occurrence:
Estimated area of occupancy (AOO) - km2:97
Number of Locations:3
Lower elevation limit (metres):10
Upper elevation limit (metres):500
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:A rare palm with less than 30 mature trees known in the wild. The current population trend is decreasing.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:30Continuing decline of mature individuals:Yes
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:Occurs in lowland rainforest where this species occurs at the edge of swamps in valley bottoms and on ridge tops. Recorded from 10 up to 500 m.

Use and Trade [top]

Use and Trade: Seeds are harvested for the international horticultural trade.

Threats [top]

Major Threat(s): Trees are felled in order for the seeds to be harvested for the international horticultural trade.

Conservation Actions [top]

Conservation Actions: Protected in the National Parks of Mananara Avaratra and Masoala and in Analalava Reserve. Further regulation and monitoring of the harvest and trade in seeds of palm species is required.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  
2. Land/water management -> 2.1. Site/area management
3. Species management -> 3.1. Species management -> 3.1.1. Harvest management
3. Species management -> 3.1. Species management -> 3.1.2. Trade management

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
5. Biological resource use -> 5.2. Gathering terrestrial plants -> 5.2.1. Intentional use (species is the target)
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.7. Reduced reproductive success

3. Monitoring -> 3.1. Population trends
3. Monitoring -> 3.2. Harvest level trends
3. Monitoring -> 3.3. Trade trends

♦  Pets/display animals, horticulture
 International : ✓ 

Bibliography [top]

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. Dypsis tokoravina. In: The IUCN Red List of Threatened Species 2012: e.T195908A2431421. . Downloaded on 28 November 2015.
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