Erithacus komadori

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	PASSERIFORMES	MUSCICAPIDAE

Scientific Name:

Erithacus komadori

Species Authority:

(Temminck, 1835)

Common Name/s:

English

–

Ryukyu Robin

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Assessed:

2008

Assessor/s:

BirdLife International

Reviewer/s:

Bird, J., Butchart, S.

Contributor/s:

Chan, S.

Justification:
This species is thought to have a moderately small and declining range and consequently it is considered Near Threatened.

History:

2004	–	Near Threatened
1988	–	Near Threatened

Geographic Range [top]

Range Description:	Erithacus komadori is the most abundant of the endemic birds restricted to the Nansei Shoto archipelago, Japan. Three subspecies are currently recognised: subrufa which occurs on the islands of Ishigaki, Iriomote and Yonaguni (where it is poorly known and may be of doubtful validity); namiyei is endemic to the northern part of Okinawa Island; and komadori which inhabits the southern islands of of Kagoshima and Okinawa. The population is considered to be around 80,000-90,000 individuals³. It remains common on Amami-oshima, Toku-noshima and the northern part of Okinawa, but steep declines have been reported from some islands.
Countries:	Native: Japan
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	S. Chan in litt. (2003).

Population:

S. Chan in litt. (2003).

Habitat and Ecology [top]

Habitat and Ecology:	It inhabits dense undergrowth in damp areas within riparian broad-leaved evergreen forest and nests in crevices or among the roots of trees from May to August. It occurs from 100-600 m in different parts of its range. It is a partial migrant and in the winter many birds relocate to the southern islands of the archipelago¹.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Threats include predation by introduced mongooses (Okinawa) and weasels (Nakanoshima) and habitat loss resulting from commercial logging.

Major Threat(s):

Threats include predation by introduced mongooses (Okinawa) and weasels (Nakanoshima) and habitat loss resulting from commercial logging.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway It is considered Vulnerable in the most recent national Red Data Book for Japan². It makes use of artificial nest boxes that have been erected. Conservation Actions Proposed Monitor the species in order to detect populations declines. If declines are evident consider appropriate management actions including predator control and reducing commercial logging. Calculate its range size and the area of suitable habitat. Protect areas of suitable habitat.

Conservation Actions:

Conservation Actions Underway
It is considered Vulnerable in the most recent national Red Data Book for Japan². It makes use of artificial nest boxes that have been erected.

Conservation Actions Proposed
Monitor the species in order to detect populations declines. If declines are evident consider appropriate management actions including predator control and reducing commercial logging. Calculate its range size and the area of suitable habitat. Protect areas of suitable habitat.

Citation:	BirdLife International 2008. Erithacus komadori. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 09 February 2012.
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