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The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Japanese Woodpigeon Columba janthina	LC	resident	2003	present	A2
Japanese Murrelet Synthliboramphus wumizusume	VU	breeding	2003	present	A1
Pleske's Grasshopper-warbler Helopsaltes pleskei	VU	breeding	2003	present	A1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2015) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	good (> 90%)	poor (40-69%)	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Invasive and other problematic species and genes	likely in long term (beyond 4 years)	whole area/population (>90%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Some limited conservation initiatives are in place	low

Year	Protected Area	Designation	% overlap with IBA
1969	Kiinagashima	国指定鳥獣保護区	100
1978	Nishiki	都道府県自然環境保全地域	<1
1983	Kihokucho miyama kushimakatsuura	都道府県指定鳥獣保護区	<1
1987	Kihokucho kiinagashimaku nagura	都道府県指定鳥獣保護区	<1
1992	Kihokucho miyamaku ojiro	都道府県指定鳥獣保護区	<1
2013	Common fishery right area(Mie)	共同漁業権区域	71

Habitat1	Habitat detail	% of IBA
Forest		-
Marine Coastal/Supratidal		-

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kii Nagashima islets (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/kii-nagashima-islets-iba-japan on 22/11/2024.