Map_thumbnail_large_font

Hyperolius watsonae

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AMPHIBIA ANURA HYPEROLIIDAE

Scientific Name: Hyperolius watsonae
Species Authority: Pickersgill, 2007

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Martin Pickersgill
Reviewer(s): Simon Stuart, Neil Cox
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.

Geographic Range [top]

Range Description: This species is endemic to Ngezi Forest, on Pemba Island, in Tanzania. It occurs close to sea-level.
Countries:
Native:
Tanzania, United Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

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

Habitat and Ecology [top]

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

Threats [top]

Major Threat(s): It is restricted to a tiny area where its forest habitat is at risk from harvesting of wood, and small-scale agriculture.

Conservation Actions [top]

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

Citation: Martin Pickersgill 2008. Hyperolius watsonae. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 16 September 2014.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided