Astylosternus rheophilus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Arthroleptidae

Scientific Name: Astylosternus rheophilus
Species Authority: Amiet, 1978
Common Name(s):
English Cameroon Range Night Frog
Taxonomic Source(s): Frost, D.R. 2016. Amphibian Species of the World: an Online Reference. Version 6.0 (31 March 2016). New York, USA. Available at:

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Jean-Louis Amiet
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Vulnerable, because its Extent of Occurrence is less than 20,000 km2 and its Area of Occupancy is less than 2,000 km2, its distribution is severely fragmented, and there is a continuing decline in the extent and quality of its habitat.

Geographic Range [top]

Range Description:This species is endemic to western Cameroon at altitudes of 1,300-2,450m asl. The nominate subspecies is recorded from Mount Manenguba, Mount Mbam, Santa, Mount Bana, Mount Ngokham, the Bamboutos Mountains, and the Bafut-Ngemba Forest Reserve, and is likely also to occur on Mount Oku. The subspecies A. r. tchabelensis is known only from the southern slopes of Tchabal Mbaba, at 1,700-1,900m asl, in Cameroon, and might occur on the Mambila Plateau in eastern Nigeria.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is a very common species.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It lives in both the submontane and montane zones, and is typically associated with small streams in forest where it breeds. However, at higher altitudes above 2,000m asl it can also be found along streams in montane grassland, sometimes bordered with trees. It seems able to tolerate minor disturbance of its habitat. The subspecies A. r. tchabelensis lives in relict gallery forests in a generally deforested area.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): Although it is likely that it can tolerate a degree of habitat alteration, this species is probably declining as a result of widespread habitat loss and degradation within its restricted range, mainly due to smallholder agricultural activities, subsistence wood extraction, and human settlement.

Conservation Actions [top]

Conservation Actions: It occurs in the Bafut-Ngemba Forest Reserve.

Citation: Jean-Louis Amiet. 2004. Astylosternus rheophilus. The IUCN Red List of Threatened Species 2004: e.T54424A11142019. . Downloaded on 20 August 2017.
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