Overview

Comprehensive Description

Description

A Hyperolius from the grasslands of the Cameronese ridge. Males small (17-20 mm), females medium (23-26 mm). Head narrower than in the similar H. kuligae. Dorsum with hour-glass pattern or, more frequently, with light dorsolateral stripes in grey, beige and brown. Gular flap large. Pupils horizontal. Females with yellow ventrum, and red ventral surfaces of legs. Males have a whitish ventrum which is transparent posteriorly.

The males are similar to those of H. cinnamomeoventris, but smaller. The latter sometimes have two darker middorsal lines. For a comparison with the similar H. kuligae and H. platyceps see under the latter.

The spelling H. adametzi has also been used for this species, but Frost (2007) points out that the original specimens were labeled as H. ademetzi and that the alternative spelling was a typographical error by Ahl (1931).

This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira publishers, Frankfurt am Main.

  • Frost, D. R. (2007). Amphibian Species of the World: an Online Reference. Version 5.1 (10 October 2007). Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA.
  • Ahl, E. (1931). ''Anura III, Polypedatidae.'' Das Tierreich, 55. F. E. Schulze and W. Kuekenthal, eds., Walter de Gruyter, Berlin and Leipzig.
  • Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
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Distribution

Range Description

This species is known only from several localities in the mountains of western Cameroon, from Mount Manenguba north to the Bamileke and the Bamenda Highlands, ranging from 750-1,900m asl.
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Distribution and Habitat

Only found in savanna at 750-1750 m in the western Cameronese highlands.

  • Frost, D. R. (2007). Amphibian Species of the World: an Online Reference. Version 5.1 (10 October 2007). Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA.
  • Ahl, E. (1931). ''Anura III, Polypedatidae.'' Das Tierreich, 55. F. E. Schulze and W. Kuekenthal, eds., Walter de Gruyter, Berlin and Leipzig.
  • Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
It lives in savannah, tall grassland, bush land, and herbaceous vegetation. Breeding takes place in shallow marshes, ponds, lakes and slow-flowing streams with tall, reedy vegetation.

Systems
  • Terrestrial
  • Freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2004

Assessor/s
Jean-Louis Amiet, Arne Schiøtz

Reviewer/s
Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)

Contributor/s

Justification
Listed as Near Threatened because, although its Extent of Occurrence is probably less than 5,000 km2, it is adaptable and has a presumed large population, thus making the species close to qualifying for Vulnerable.
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Population

Population
It is common on the Bamileke Plateau, and is very common on the Mbos Plains at Mboassoum and Santchou.

Population Trend
Decreasing
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Life History, Abundance, Activity, and Special Behaviors

The call consists of a long and rapid succession of very brief shrill buzzes, "zi-zi-zi-zi". Sometimes an initial sound is heard.

  • Frost, D. R. (2007). Amphibian Species of the World: an Online Reference. Version 5.1 (10 October 2007). Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA.
  • Ahl, E. (1931). ''Anura III, Polypedatidae.'' Das Tierreich, 55. F. E. Schulze and W. Kuekenthal, eds., Walter de Gruyter, Berlin and Leipzig.
  • Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
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Threats

Major Threats
It might suffer from loss of habitat as a result of encroachment by agriculture and human settlements, but it is adaptable and is probably not at serious risk.
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Management

Conservation Actions

Conservation Actions
It might occur in Bafut-Ngemba Forest Reserve.
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Wikipedia

Hyperolius ademetzi

Hyperolius ademetzi is a species of frog in the Hyperoliidae family. It is endemic to Cameroon. Its natural habitats are moist savanna, subtropical or tropical high-altitude shrubland, subtropical or tropical high-altitude grassland, rivers, freshwater lakes, freshwater marshes, and intermittent freshwater marshes. It is threatened by habitat loss.

References[edit]

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