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• Reference and further resources

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 Murrelet Synthliboramphus wumizusume	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 (2010) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	Unknown	Unknown	low

Year	Protected Area	Designation	% overlap with IBA
1968	Notohanto	国定公園	100
1973	Nanatsujima	国指定鳥獣保護区	100
1974	Sotoura kaga	沿岸水産資源開発区域	22
2013	Common fishery right area(Ishikawa)	共同漁業権区域	9

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

1. IUCN Habitat classification.

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