Hyperolius watsonae — Details

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Overview

Distribution

Range Description

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This species is endemic to Ngezi Forest, on Pemba Island, in Tanzania. It occurs close to sea-level.
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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology
It appears to be dependent on lowland forest. At its only known site it was found calling in forest trees overhanging a small pool, but it was absent from the grasses and herbage at the other end of the same pool in a more open situation. It presumably breeds in water by larval development.

Systems
  • Terrestrial
  • Freshwater
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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(iii)+2ab(iii)

Version
3.1

Year Assessed
2008

Assessor/s
Martin Pickersgill

Reviewer/s
Simon Stuart, Neil Cox

Contributor/s

Justification
Listed as Critically Endangered because its extent of occurrence is less than 100 km² and its area of occupancy is less than 10 km², all individuals are in a single location, and there is a continuing decline in the extent and quality of its habitat on the island of Pemba.
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Population

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Population
It appears to be a rare species. Only 10-20 males were heard calling at its only known site.

Population Trend
Decreasing
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Threats

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Major Threats
It is restricted to a tiny area where its forest habitat is at risk from harvesting of wood, and small-scale agriculture.
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Management

Conservation Actions

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Conservation Actions
It occurs in the Ngezi Forest Reserve which requires careful management for this extremely rare species.
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