Hyperolius horstockii


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Hyperolius horstockii
Species Authority: (Schlegel, 1837)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2013
Date Assessed: 2013-06-25
Assessor(s): IUCN SSC Amphibian Specialist Group
Reviewer(s): Stuart, S.N.
Contributor(s): Channing, A., Turner, A., de Villiers, A., Harrison, J., Harvey, J., Tarrant, J., Measey, J., Tolley, K., Minter, L., du Preez, L., Burger, M., Cunningham, M., Davies, S. & South African Frog Re-assessment Group (SA-FRoG)
Facilitator/Compiler(s): Morris, E.J. & Measey, J.
Listed as Least Concern as although it has a relatively restricted extent of occurrence (18,000 km2), its area of occupancy (900 km2) is large. It is not considered to be severely fragmented, and despite some impact on a limited number of subpopulations, it is known to adapt to disturbed environments.
2012 Least Concern
2004 Vulnerable

Geographic Range [top]

Range Description:This is a coastal species occurring at low elevations (<500 m asl) along the southern coast of the Western Cape (including the Cape Peninsula), and east into the western part of the Eastern Cape. Its EOO is 18,000 km2, with an estimated AOO of 900 km2 (5% of EOO).
South Africa (Eastern Cape Province, Western Cape)
Range Map:Click here to open the map viewer and explore range.

Population [top]


This species is relatively abundant in many wetland areas and can tolerate disturbance. It is not considered to be severely fragmented.

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: It lives in wetlands in coastal fynbos heathland. It breeds in large and small pans, dams, vleis, and even slow-flowing streams. It needs emergent vegetation, and therefore requires relatively permanent water, though it seems to avoid very deep water.
Systems: Terrestrial; Freshwater

Use and Trade [top]

Use and Trade:

There are no reports of this species being utilized.

Threats [top]

Major Threat(s): Spreading alien vegetation can lead to drying out of its breeding habitats. It is probably also adversely affected by fires. Several populations have disappeared due to the impacts of agricultural and urban expansion on its native habitat. No evidence exists that collection of Arum Lily flowers affects this species in any way whatsoever.

Conservation Actions [top]

Conservation Actions: No conservation actions are currently prioritised for this species. It occurs in several protected areas, including Table Mountain National Park and De Hoop Nature Reserve.

Bibliography [top]

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

IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.2). Available at: http://www.iucnredlist.org. (Accessed: 13 November 2013).

Minter, L.R., Burger, M., Harrison, J.A., Braack, H.H., Bishop, P.J. and Knoepfer, D. 2004. Atlas and Red Data Book of the Frogs of South Africa, Lesotho and Swaziland. SI/MAB Series No. 9, Washington, D.C.

Passmore, N.I. and Carruthers, V.C. 1995. South African Frogs, 2nd Edition. Southern Book Publishers and Witwatersrand University Press, Johannesburg.

Poynton, J.C. 1963. Descriptions of southern African amphibians. Annals of the Natal Museum 15: 319-332.

Schi√łtz, A. 1999. Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.

Visser, J. 1979. Calling and spawning dates of the south-western Cape frogs. Journal of Herpetological Association of Africa: 21-28.

Wager, V.A. 1986. Frogs of South Africa, 2nd edition. Delta Books, Craighall.

Citation: IUCN SSC Amphibian Specialist Group 2013. Hyperolius horstockii. In: The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 28 March 2015.
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