Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Carnivora Viverridae

Scientific Name: Poiana leightoni
Species Authority: Pocock, 1908
Common Name(s):
English West African Oyan, Leighton's Linsang, West African Linsang
French Poiane d'Afrique occidentale
Poiana richardsonii subspecies liberiensis Pocock, 1908
Taxonomic Notes: This species has been considered a subspecies of Central African Linsang P. richardsonii, but is here considered a valid species following Rosevear (1974), Wozencraft (2005) and Van Rompaey and Colyn (in press).

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Van Rompaey, H., Gaubert, P., Dunham, A. & Hoffmann, M.
Reviewer(s): Duckworth, J.W. (Small Carnivore Red List Authority) and Hoffmann, M. (Global Mammal Assessment Team)
There is no current information on the population status of this species (there are no records since the late 1908s), its limits of distribution are not well known, and it is unclear to what degree it is impacted by hunting. The core of its range is centred on an area known to be at risk of habitat loss (although rates of forest loss are lower in Liberia than neighbouring Côte d’Ivoire), to which this arboreal species is susceptible, but it is unlikely that the rate of forest loss alone has been sufficient over a 10-year period to warrant listing in a threatened category. In the absence of additional information on threats (specifically its susceptibility to hunting) and current population status, it is provisionally listed as Data Deficient.
Previously published Red List assessments:
1996 Data Deficient (DD)
1996 Data Deficient (DD)
1994 Indeterminate (I)
1990 Indeterminate (I)
1988 Indeterminate (I)

Geographic Range [top]

Range Description: Endemic to West Africa, and confirmed only in south-western Côte d’Ivoire, where known from two records, and in eastern Liberia, where there are several records (Van Rompaey and Colyn in press). The presence of this species in the Kounounkan Massif in south-western Guinea (Barnett et al. 1996) requires confirmation (Van Rompaey and Colyn in press). There is no confirmed record of the species from Sierra Leone.
Countries occurrence:
Côte d'Ivoire; Liberia
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no reliable information on the population status of this species, with the most recent confirmed records from Liberia in the late 1980s (Taylor 1992). Apparently rare and very localized (Rosevear 1974).
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: An inhabitant of the rainforest canopy (Van Rompaey and Colyn in press).
Systems: Terrestrial
Generation Length (years): 3-4

Threats [top]

Major Threat(s): Major threats to this species are not known, but like Johnston's Genet Genetta johnstoni and Liberian Mongoose Liberiictis kuhni the species is probably being affected by ongoing habitat loss in the upper Guinean forests, probably more so given that it is a canopy species. It is unclear to what degree this semi-arboreal species is impacted by bushmeat hunting, but this may well be a threat.

Conservation Actions [top]

Conservation Actions: It may occur in the Sangbé N.P. in Côte d’Ivoire (Hoppe-Dominik 1990) and the type locality is not far away from the northern boundary of Liberia’s Sapo N.P. (Schreiber et al. 1989). This is a priority species for further survey work, particularly to better determine its current range and population status, whether or not it is subject to hunting, and to investigate other aspects of its ecology.

Citation: Van Rompaey, H., Gaubert, P., Dunham, A. & Hoffmann, M. 2008. Poiana leightoni. The IUCN Red List of Threatened Species 2008: e.T44165A10855845. . Downloaded on 13 October 2015.
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