Petropedetes johnstoni (Boulenger 1888)

Petropedetes johnstoni és una espècie de granota que viu al Camerun.

Es troba amenaçada d'extinció per la pèrdua del seu hàbitat natural.

Referències

• Amiet, J.-L. 2004. Petropedetes johnstoni. 2006 IUCN Red List of Threatened Species. Accedit a data 18 de gener de 2008.

Petropedetes johnstoni is a species of frog in the family Petropedetidae. It is endemic to coastal Cameroon and known with certainty only from few localities. For a period, Petropedetes newtonii was considered a junior synonym of this species, leading to a much broader distribution. The two species are now considered distinct, but information on Petropedetes johnstoni sensu stricto is limited.^[2][3] Common name Johnston's water frog has been coined for this species.^[2][4]

Etymology

The specific name johnstoni honours Harry Johnston, a British explorer and naturalist^[5] who collected the holotype.^[4]

Description

Adult males measure about 32 mm (1.3 in) and adult females about 38 mm (1.5 in) in snout–vent length. The snout is slightly rounded. The tympanum is distinct, smaller than the eye in the male; the supratympanic fold is distinct. The finger and the toe tips are expanded into discs; the fingers have no webbing whereas the toes may have rudimentary webbing. Dorsal skin bears only relatively small warts. The male lacks the hypertrophied forearm and the keratinised spicules on the skin of the throat and on the basis of the arms seen in Petropedetes newtonii.^[3]

Habitat and conservation

Petropedetes johnstoni, as the species was circumscribed in 2004, occurs in lowland forest and mangrove forests. Males can call in forest far from water, and it appears that this species does not depend on water for its reproduction; the larvae are presumably terrestrial. Males guard a nest of eggs on large leaves slightly above the ground. At the time, loss of its forest habitat due to agricultural development, logging and expanding human settlements was considered as the major threat. It was present in the Korup National Park.^[1]

References

Petropedetes johnstoni es una especie de anfibios de la familia Ranidae.

Distribución geográfica

Se encuentra en el Camerún.

Estado de conservación

Se encuentra amenazada de extinción por la pérdida de su hábitat natural.

Referencias

• Amiet, J.-L. 2004. Petropedetes johnstoni. 2006 IUCN Red List of Threatened Species.

Petropedetes johnstoni Petropedetes generoko animalia da. Anfibioen barruko Petropedetidae familian sailkatuta dago, Anura ordenan.

Erreferentziak

Ikus, gainera

• Petropedetidae

Petropedetes johnstoni est une espèce d'amphibiens de la famille des Petropedetidae^[1].

Répartition

Cette espèce se rencontre^[1] :

• dans les plaines côtières du Sud du Cameroun ;
• au Gabon ;
• en Guinée équatoriale ainsi que sur l'île de Bioko.

Étymologie

Cette espèce est nommée en l'honneur de Harry Johnston^[2].

Publication originale

• Boulenger, 1888 "1887" : List of the reptiles and batrachians collected by Mr. H. H. Johnston on the Rio del Rey, Cameroons District, W. Africa. Proceedings of the Zoological Society of London, vol. 1887, p. 564-565 (texte intégral).

Notes et références

Petropedetes johnstoni é uma espécie de anfíbio da família Petropedetidae.

É endémica dos Camarões.

Os seus habitats naturais são: florestas subtropicais ou tropicais húmidas de baixa altitude e florestas de mangal tropicais ou subtropicais.

Está ameaçada por perda de habitat.

Referências

• (em inglês) Amiet, J.-L. 2004. Petropedetes johnstoni. 2006 IUCN Red List of Threatened Species. Dados de 23 de Julho de 2007.

Petropedetes johnstoni là một loài ếch thuộc họ Petropedetidae. Đây là loài đặc hữu của Cameroon. Môi trường sống tự nhiên của chúng là rừng ẩm vùng đất thấp nhiệt đới hoặc cận nhiệt đới và rừng sú vẹt nhiệt đới hoặc cận nhiệt đới. Chúng hiện đang bị đe dọa vì mất môi trường sống.

Chú thích

Tham khảo

• Amiet, J.-L. 2004. Petropedetes johnstoni. 2006 IUCN Red List of Threatened Species. Truy cập 23 tháng 7 năm 2007.