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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Great Cormorant Phalacrocorax carbo	LC	breeding (2003)	present	A4i

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%)	moderate (70–90%)	moderate

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Pollution	happe­ning now	few indivi­duals/small area (<10%)	slow decline (1–10% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Most of area (50–90%) covered (including the most critical parts for important bird species)	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	medium

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Unoyama National Monument	Other (-)	-
1954	Unoyama	都道府県指定鳥獣保護区 (IV)	90
1958	Mikawawan	国定公園 (V)	21
1968	Minamichita	都道府県立自然公園 (V)	78

Habitat	% of IBA	Habitat detail
Forest	-
Wetlands (inland)	-	Freshwater lakes and pools

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Unoyama (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/unoyama-iba-japan on 23/12/2024.