Nimbaphrynoides occidentalis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Nimbaphrynoides occidentalis
Species Authority: (Angel, 1943)

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Mark-Oliver Rödel, Arne Schiøtz
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Critically Endangered because its Extent of Occurrence is probably less than 100 km2, it is known from a single location, and the quality and extent of its habitat on Mount Nimba is declining.
1996 Endangered
1994 Vulnerable (Groombridge 1994)
1990 Vulnerable (IUCN 1990)
1988 Vulnerable (IUCN Conservation Monitoring Centre 1988)
1986 Vulnerable (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: This species is known only from the Mount Nimba region in Guinea and Côte d'Ivoire. It presumably also occurs in Liberia, but there have not yet been any records. It is a montane species, occurring above 1,000m asl.
Côte d'Ivoire; Guinea
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is apparently an abundant species within its small range, and a survey in 2003 succeeded in locating several individuals, even during the cold season when they are supposed to be inactive.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It is a species of montane grassland. It is a viviparous species, with the female nourishing the young internally prior to the birth of small toadlets.
Systems: Terrestrial

Threats [top]

Major Threat(s): Habitat loss and degradation due to the mining of iron ore/bauxite is the biggest threat to this species, and new mining sites have been selected recently for mining in the Guinean part of Mount Nimba. There is a risk that mining could destroy the entire range of the species. Fires in the montane grassland might be a threat. The species is inherently at risk because of its small range.

Conservation Actions [top]

Conservation Actions: This species presumably occurs in the Mount Nimba Strict Nature Reserve, which is a World Heritage Site. It is listed on CITES Appendix I. Survey work is necessary to monitor the population status of this species.

Citation: Mark-Oliver Rödel, Arne Schiøtz 2004. Nimbaphrynoides occidentalis. The IUCN Red List of Threatened Species. Version 2014.2. <>. Downloaded on 25 October 2014.
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 fill in the feedback form so that we can correct or extend the information provided