Limnonectes namiyei

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AMPHIBIA	ANURA	DICROGLOSSIDAE

Scientific Name:	Limnonectes namiyei
Species Authority:	Stejneger, 1901

Assessment Information [top]

Red List Category & Criteria:

Endangered B1ab(iii) ver 3.1

Year Assessed:

2004

Assessor/s

Yoshio Kaneko, Masafumi Matsui

Evaluator/s:

Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)

Justification:
Listed as Endangered because its Extent of Occurrence is less than 200km2, its distribution is severely fragmented and there is continuing decline in the extent and quality of its habitat.

History:

1996	–	Vulnerable
1996	–	Vulnerable (Baillie and Groombridge 1996)
1994	–	Rare (IUCN)

Geographic Range [top]

Range Description:	This species is endemic to Japan and is found only on Okinawa-jima.
Countries:	Native: Japan
Range Map:	(click map to view full version)

Population [top]

Population:	It used to be a common species, but it has declined considerably.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	It inhabits upstream regions surrounded by primary broad-leaved evergreen forest, where it breeds in streams. It preys mainly on crustaceans and earthworms.
Systems:	Terrestrial; Freshwater

Threats [top]

Major Threat(s):	Until the early 1970s this species ranged over nearly the entire northern half of the island. However, recent deforestation accompanied by road and dam construction in its original range has drastically reduced its habitat. It has also been impacted by invasive mongooses.

Major Threat(s):

Until the early 1970s this species ranged over nearly the entire northern half of the island. However, recent deforestation accompanied by road and dam construction in its original range has drastically reduced its habitat. It has also been impacted by invasive mongooses.

Conservation Actions [top]

Conservation Actions:	It has been designated a natural monument by the Okinawa Prefecture and is totally protected. However, there remains a need for improved protection of the habitat of this species in northern Okinawa.

Conservation Actions:

It has been designated a natural monument by the Okinawa Prefecture and is totally protected. However, there remains a need for improved protection of the habitat of this species in northern Okinawa.

Citation:	Yoshio Kaneko, Masafumi Matsui 2004. Limnonectes namiyei. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 21 November 2009.
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