Impatiens letouzeyi

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA GERANIALES BALSAMINACEAE

Scientific Name: Impatiens letouzeyi
Species Authority: Grey-Wilson

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2014
Date Assessed: 2011-03-25
Assessor(s): Cheek, M.
Reviewer(s): Onana, J.-M.
Facilitator/Compiler(s): Lopez Poveda, L.
Justification:
Described in 1981 from a single specimen in western Bakossi collected in the 1970s (Letouzey 15353), it was rediscovered by an Earthwatch team led by George Gosline in 1998 and subsequently found to be fairly common in the Kodmin-Edib area. At the end of the wet season, plants are readily spotted by their fallen flowers under the trees on which they grow. This plant has not been found on Mt Kupe despite searches in all months over several years. It is arguable as to whether the Bakossi records should be taken as two or three sites. Opting for the second gives a total number of four locations (including a new record from Lebialem), with an extent of occurrence of 1,571 km², an area of occupancy of 24 km², and there is continuing decline due to loss of habitat to agricultural expansion and dam construction. The species therefore qualifies for listing as Endangered. The assessment above is maintained from that given in Cheek et al. (2004). The species was previously assessed as Endangered (Cheek et al. 2004).
History:
2004 Endangered

Geographic Range [top]

Range Description:The species is endemic to Cameroon, (SW Region: Bakossi Mts (five collections) and Lebialem Highlands-Fosimondi (one site)).
Countries:
Native:
Cameroon
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:

Population size is not known but it has been found to be fairly common in the Kodmin-Edib area (G. Gosline pers. obs.).

Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Epiphytic in crown of trees 4-6 cm from ground, in shrubs over streams or very rarely, terrestrial, on lakeside Sphagnum blanket; 1,200-1,350 m alt.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The planned reservoir scheme near Kodmin may threaten part of the population of this species. At Fosimondi the trees on which this species is growing are being cut down to plant crops.

Conservation Actions [top]

Conservation Actions: A detailed study of this species at Kodmin-Edib where the species is most secure and where conservation efforts might be focused, would provide more precise data on population density and demography, as well as assisting in the placement of future development schemes. Botanical surveys in other parts of the Bakossi Mts, or Rumpi Hills, might discover more sites which would reduce the threat assessment of this taxon.

Bibliography [top]

Cheek, M., Pollard, B.J., Darbyshire, I., Onana, J.-M. and Wild, C. (compilers and editors). 2004. The Plants of Kupe, Mwanenguba and the Bakossi Mountains, Cameroon. A conservation Checklist. The Royal Botanic Gardens, Kew, Kew.

IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.3. Available at: www.iucnredlist.org. (Accessed: 13 November 2014).

Onana, J.-M. and Cheek, M. (eds). 2011. Red Data Book of the Flowering Plants of Cameroon: IUCN Global Assessments. Kew Publishing, Royal Botanic Gardens, Kew.


Citation: Cheek, M. 2014. Impatiens letouzeyi. In: The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 22 December 2014.
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