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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
Japanese Paradise-flycatcher Terpsiphone atrocaudata	LC	breeding (2003)	present	A3
Varied Tit Sittiparus varius	LC	resident (2003)	present	A3
Blue-and-white Flycatcher Cyanoptila cyanomelana	LC	breeding (2003)	present	A3

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
Human intrusions and disturbance	likely in long term (>4 years)	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>90%) covered by appropriate conservation designation	Unknown	Unknown	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1964	Yatsugatake-Chushinkogen	国定公園 (V)	100
2003	Mt. Yatsugatake	緑の回廊 (V)	37
2003	Okutateshina	都道府県指定鳥獣保護区 (IV)	5
2005	Kasuga	都道府県指定鳥獣保護区 (IV)	5
2008	Yatsugatake	都道府県指定鳥獣保護区 (IV)	12
2010	Gosensui	都道府県指定鳥獣保護区 (IV)	1
2012	Hirohara	都道府県指定鳥獣保護区 (IV)	5

Habitat	% of IBA	Habitat detail
Forest	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mount Yatsugatake (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/mount-yatsugatake-iba-japan on 24/12/2024.