Voanioala gerardii 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arecales Palmae

Scientific Name: Voanioala gerardii
Species Authority: J.Dransf.

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.
Only 15 mature individuals have been seen in the three known sites. These are remote and difficult to access and mostly protected; despite this it is subject to selective exploitation and the population is declining. Based on the small population size this species qualifies for a Critically Endangered listing. If the population is found to be larger it would probably qualify as Endangered as the extent of occurrence and area of occupancy are well within the thresholds for Endangered (264 km² and 12 km² respectively).
Previously published Red List assessments:
1998 Critically Endangered (CR)
1998 Endangered (E)

Geographic Range [top]

Range Description: Endemic to the northeast of Madagascar where it occurs in only three areas around the Bay of Antongil.
Countries occurrence:
Estimated area of occupancy (AOO) - km2: 12
Number of Locations: 3
Lower elevation limit (metres): 200
Upper elevation limit (metres): 700
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: About 15 mature trees are known for all the known sites and the population is decreasing.
Current Population Trend: Decreasing
Additional data:
Number of mature individuals: 15
Population severely fragmented: Yes

Habitat and Ecology [top]

Habitat and Ecology: Occurs in primary lowland forest rich in palms and pandans in swampy valley bottoms and on gentle slopes. Recorded from 200 to 700 m.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: This species is cut down to harvest its seeds to be sold in international trade and also for its edible heart which is eaten by local people

Threats [top]

Major Threat(s): This species is threatened by habitat loss through clearance for shifting agriculture and logging and also by harvesting of the species for its seeds and edible palm-heart.

Conservation Actions [top]

Conservation Actions: Protected in Masoala National Park. Control and monitoring of the harvest and trade is required.

Citation: Rakotoarinivo, M. & Dransfield, J. 2012. Voanioala gerardii. The IUCN Red List of Threatened Species 2012: e.T38723A2883819. . Downloaded on 01 December 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided