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Hynobius amjiensis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AMPHIBIA CAUDATA HYNOBIIDAE

Scientific Name: Hynobius amjiensis
Species Authority: Gu, 1992

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Gu Huiqing, Michael Wai Neng Lau
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and 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 10km2, all individuals are in a single location, and there is continuing decline in the extent and quality of its habitat.

Geographic Range [top]

Range Description: This species is known only from five small pools at the top of Mount Longwangshan, in the small Longwangshan Nature Reserve, Anji county, north-western Zhejiang, China, at about 1,300m asl.
Countries:
Native:
China
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is considered rare and the population is believed to comprise only 250-300 breeding females.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Breeding takes place only in the five small pools, with the breeding season running from end November to mid-March, which is the only time that adults can be found. Each female deposits 140-174 eggs, and the larvae develop in the pools; larvae take three years to reach sexual maturity.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The very small range and very limited number of breeding sites makes this species especially susceptible to habitat alteration, which is increasingly a problem due to the growing threat of human disturbance at the site, especially from touristic activities.

Conservation Actions [top]

Conservation Actions: Although the species is present in the small Longwangshan Nature Reserve, stricter management of the breeding sites is needed. A captive-breeding programme should also be established.

Citation: Gu Huiqing, Michael Wai Neng Lau 2004. Hynobius amjiensis. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 30 September 2014.
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