Babina holsti


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Babina holsti
Species Authority: (Boulenger, 1892)
Common Name(s):
English Holst's Frog
Rana holsti Boulenger, 1892

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii,v) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Yoshio Kaneko, Masafumi Matsui
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Endangered, because its Extent of Occurrence is less than 1,000 km2, its distribution is severely fragmented, there is a continuing decline in the extent and quality of its habitat, and there is evidence of a rapid decline in the number of mature individuals.
1996 Vulnerable

Geographic Range [top]

Range Description: This species is found only on Okinawajima and Tokashikijima Islands in Japan.
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Its population appears to be in rapid decline.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It occurs in primary or well-recovered secondary broad-leaved evergreen forest, breeding on the wet, sandy mud substrates around the heads of mountain streams and in the surrounding still waters.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Recent deforestation caused by road and dam construction in the northern part of Okinawajima and Tokashikijima have been damaging the habitat of this species, and will probably lead to further decline of the population on these islands.

Conservation Actions [top]

Conservation Actions: This species is designated as a natural monument by Okinawa Prefecture, but there remains a need for improved protection of forest habitat on both Okinawajima and Tokashikijima.

Citation: Yoshio Kaneko, Masafumi Matsui 2004. Babina holsti. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 01 September 2015.
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