Cynops ensicauda 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Caudata Salamandridae

Scientific Name: Cynops ensicauda (Hallowell, 1860)
Common Name(s):
English Sword-tailed Newt

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 5,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat, and in the number of mature individuals, in the Amami-Okinawa group.

Geographic Range [top]

Range Description:This species is restricted to twelve islands in the Amami and Okinawa island groups, in the Ryukyus, Japan.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Its population is decreasing. In a site in southern Okinawajima, the number of animals recorded in the breeding season has decreased by 75% in 15 years.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It occurs on wet forest floors and in grassland, and breeds in pools and streams, where the larvae also develop.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): The major threat to the species is habitat degradation and loss, due mainly to clear-cutting and human settlement. Other threats include reclamation of ponds, and construction of artificial concrete ditches. The species is also in the pet trade in Japan and is used for medicinal purposes in Taiwan, Province of China. It has further been affected by the introduction of invasive fish species.

Conservation Actions [top]

Conservation Actions: It probably occurs in some protected areas, but this requires confirmation. It is necessary to ensure that trade in this species is closely monitored and regulated.

Citation: Yoshio Kaneko, Masafumi Matsui. 2004. Cynops ensicauda. The IUCN Red List of Threatened Species 2004: e.T59441A11942003. . Downloaded on 22 June 2018.
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