Xenopus fraseri

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AMPHIBIA	ANURA	PIPIDAE

Scientific Name:

Xenopus fraseri

Species Authority:

Boulenger, 1905

Common Name/s:

English

–

Fraser's Clawed Frog, Fraser's Platanna

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2004
Assessor/s:	Richard Tinsley, John Measey, Manfred Beier
Reviewer/s:	Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Justification: Listed as Least Concern in view of its wide distribution, tolerance of a degree of habitat modification, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

Geographic Range [top]

Range Description:	This species ranges from southwestern Cameroon to eastern Democratic Republic of Congo, and south to northern Angola. It also occurs on the island of Bioko (Equatorial Guinea). Records from northern and northeastern Democratic Republic of Congo, up to the border with Uganda, probably refer to Xenopus pygmaeus. Records from central and southern Angola (Ruas 1996) require confirmation.
Countries:	Native: Angola; Cameroon; Central African Republic; Congo; Congo, The Democratic Republic of the; Equatorial Guinea; Gabon Presence uncertain: Rwanda
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	It is a very abundant species.
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	It is a water-dependent species of lowland rainforest, living and breeding in pools, and sometimes in slow-flowing streams. It can tolerate habitat degradation, providing that shade is provided by overhanging trees. It has filter-feeding tadpoles.
Systems:	Terrestrial; Freshwater

Threats [top]

Major Threat(s):	In view of its wide distribution and adaptability to altered habitats, this species is unlikely to be threatened. It is harvested for human consumption, and this might have an impact on local populations.

Major Threat(s):

In view of its wide distribution and adaptability to altered habitats, this species is unlikely to be threatened. It is harvested for human consumption, and this might have an impact on local populations.

Conservation Actions [top]

Conservation Actions:	It occurs in several protected areas.

Conservation Actions:

It occurs in several protected areas.

Bibliography [top]

	1996. The Biology of Xenopus. Zoological Society of London, Clarendon Press, London. Amiet, J.-L. 1986. La Batrachofaune sylvicole d'un secteur forestier du Cameroun: la région de Yaounde. Mémoires du Muséum National d'Histoire Naturelle: 29-42. Arnoult, J. and Lamotte, M. 1968. Les Pipidae de l'Ouest africain et du Cameroun. Bull. Inst. Fond. Afr. Noire: 270-306. Channing, A. 2001. Amphibians of Central and Southern Africa. Cornell University Press, Ithaca and London. De la Riva, I. 1994. Anfibios anuros del Parque Nacional de Monte Alen, Rio Muni, Guinea Ecuatorial. Revista Espanola de Herpetologia: 123-139. Frétey, T. and Blanc, C.P. 2000. Liste des Amphibiens d'Afrique Centrale. ADIE, Libreville, Gabon. Frétey, T. and Blanc, C.P. 2001. Inventaire systématique des Amphibiens Anoures du centre du Gabon. Bulletin de la Société Zoologique de France: 375-390. Frétey, T. and Dewynter, M. 1998. Amphibiens anoures de la Foret des Abeilles (Gabon). Journal of African Zoology: 171-184. Herrmann, H.-W., Böhme, W., Herrmann, P.A., Plath, M., Schmitz, A. and Solbach, M. 2005. African Biodiversity Hotspots: the amphibians of Mt. Nlonako, Cameroon. Salamandra: 61-81. IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004. Joger, U. 1982. Zur Herpetofaunistik Kameruns (II). Bonner Zoologische Beiträege: 313-342. Knoepffler, L.-P. 1967. Xenopus fraseri X Xenopus tropicalis, hybride naturel d'amphibiens anoures au Gabon. Compte. Rend. Acad. Sci., Paris: 1391-1393. Kobel, H.R., Barundun, B. and Thiebaud, C.H. 1998. Mitochondrial rDNA phylogeny in Xenopus. Herpetological Journal: 13-17. Kobel, H.R., du Pasquier, L., Fischberg, M., and Gloor, H. 1980. Xenopus amieti sp. nov. (Anura: Pipidae) from the Cameroons, another case of tetraploidy. Revue Suisse de Zoologie: 919-926. Lasso, C.A., Rial, A.I., Castroviejo, J. and De La Riva, I. 2002. Herpetofauna del Parque Nacional de Monte Alen (Rio Muni, Guinea Ecuatorial). Graellsia: 21-34. Laurent, R.F. 1972. Amphibiens. Exploration du Parc National des Virunga, 2e Ser.: 1-125. Lawson, D.P. 1993. The reptiles and amphibians of the Korup National Park Project, Cameroon. Herpetological Natural History: 27-90. Loumont, C. 1983. Deux especes nouvelles de Xenopus du Cameroun (Amphibia, Pipidae). Rev. Suisse Zool.: 169-177. Loumont, C. 1984. Current distribution of the genus Xenopus in Africa and future prospects. Rev. Suisse Zool.: 725-746. Loumont, C. 1986. Xenopus pygmaeus, a new diploid pipid frog from rain forest of equatorial Africa. Rev. Suisse Zool.: 735-764. Mertens, R. 1965. Die Amphibien von Fernando Poo. Bonner Zoologische Beiträege: 14-29. Perret, J.-L. 1966. Les Amphibiens du Cameroun. Zoologische Jahrbuecher fuer Systematik: 289-464. Ruas, C. 1996. Contribuicao para o conhecimento da fauna de batraquios de Angola. Garcia de Orta. Ser. Zool. (Lisboa): 19-41. Tinsley, R.C. 1981. Interaction between Xenopus species (Anura: Pipidae). Monitore Zoologico Italiano N.S. Supplemento: 133-150. Vigny, C. 1979. The mating calls of 12 species and sub-species on the genus Xenopus (Amphibia: Anura). Journal of Zoology: 103-122.

1996. The Biology of Xenopus. Zoological Society of London, Clarendon Press, London.

Amiet, J.-L. 1986. La Batrachofaune sylvicole d'un secteur forestier du Cameroun: la région de Yaounde. Mémoires du Muséum National d'Histoire Naturelle: 29-42.

Arnoult, J. and Lamotte, M. 1968. Les Pipidae de l'Ouest africain et du Cameroun. Bull. Inst. Fond. Afr. Noire: 270-306.

Channing, A. 2001. Amphibians of Central and Southern Africa. Cornell University Press, Ithaca and London.

De la Riva, I. 1994. Anfibios anuros del Parque Nacional de Monte Alen, Rio Muni, Guinea Ecuatorial. Revista Espanola de Herpetologia: 123-139.

Frétey, T. and Blanc, C.P. 2000. Liste des Amphibiens d'Afrique Centrale. ADIE, Libreville, Gabon.

Frétey, T. and Blanc, C.P. 2001. Inventaire systématique des Amphibiens Anoures du centre du Gabon. Bulletin de la Société Zoologique de France: 375-390.

Frétey, T. and Dewynter, M. 1998. Amphibiens anoures de la Foret des Abeilles (Gabon). Journal of African Zoology: 171-184.

Herrmann, H.-W., Böhme, W., Herrmann, P.A., Plath, M., Schmitz, A. and Solbach, M. 2005. African Biodiversity Hotspots: the amphibians of Mt. Nlonako, Cameroon. Salamandra: 61-81.

IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.

Joger, U. 1982. Zur Herpetofaunistik Kameruns (II). Bonner Zoologische Beiträege: 313-342.

Knoepffler, L.-P. 1967. Xenopus fraseri X Xenopus tropicalis, hybride naturel d'amphibiens anoures au Gabon. Compte. Rend. Acad. Sci., Paris: 1391-1393.

Kobel, H.R., Barundun, B. and Thiebaud, C.H. 1998. Mitochondrial rDNA phylogeny in Xenopus. Herpetological Journal: 13-17.

Kobel, H.R., du Pasquier, L., Fischberg, M., and Gloor, H. 1980. Xenopus amieti sp. nov. (Anura: Pipidae) from the Cameroons, another case of tetraploidy. Revue Suisse de Zoologie: 919-926.

Lasso, C.A., Rial, A.I., Castroviejo, J. and De La Riva, I. 2002. Herpetofauna del Parque Nacional de Monte Alen (Rio Muni, Guinea Ecuatorial). Graellsia: 21-34.

Laurent, R.F. 1972. Amphibiens. Exploration du Parc National des Virunga, 2e Ser.: 1-125.

Lawson, D.P. 1993. The reptiles and amphibians of the Korup National Park Project, Cameroon. Herpetological Natural History: 27-90.

Loumont, C. 1983. Deux especes nouvelles de Xenopus du Cameroun (Amphibia, Pipidae). Rev. Suisse Zool.: 169-177.

Loumont, C. 1984. Current distribution of the genus Xenopus in Africa and future prospects. Rev. Suisse Zool.: 725-746.

Loumont, C. 1986. Xenopus pygmaeus, a new diploid pipid frog from rain forest of equatorial Africa. Rev. Suisse Zool.: 735-764.

Mertens, R. 1965. Die Amphibien von Fernando Poo. Bonner Zoologische Beiträege: 14-29.

Perret, J.-L. 1966. Les Amphibiens du Cameroun. Zoologische Jahrbuecher fuer Systematik: 289-464.

Ruas, C. 1996. Contribuicao para o conhecimento da fauna de batraquios de Angola. Garcia de Orta. Ser. Zool. (Lisboa): 19-41.

Tinsley, R.C. 1981. Interaction between Xenopus species (Anura: Pipidae). Monitore Zoologico Italiano N.S. Supplemento: 133-150.

Vigny, C. 1979. The mating calls of 12 species and sub-species on the genus Xenopus (Amphibia: Anura). Journal of Zoology: 103-122.

Citation:	Richard Tinsley, John Measey, Manfred Beier 2004. Xenopus fraseri. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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