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Year of most recent IBA criteria assessment: 2004

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
Whooper Swan Cygnus cygnus	LC	passage	2003	present	A4i
Tundra Swan Cygnus columbianus	LC	passage	2003	present	A4i
Bean Goose Anser fabalis	LC	passage	2003	present	A4i
Greater White-fronted Goose Anser albifrons	LC	passage	2003	present	A4i
A4iii Species group - waterbirds	n/a	passage	2003	min 20,000 individuals	A4iii

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

Threats to the site (pressure)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	annual & perennial non-timber crops - scale unknown/unrecorded	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - unspecified species	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Pollution	agricultural & forestry effluents - herbicides and pesticides	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Pollution	garbage & solid waste	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high

Condition of the site (state), by habitat
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Wetlands (inland)		0	0	good (> 90%)	moderate (70-90%)	near favourable

Conservation actions taken at the site (response)
Protected-area designation	Management planning	Other conservation 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

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Miyajimanuma	国指定鳥獣保護区	41	protected area contained by site	0
Miyajima-numa	Ramsar Site, Wetland of International Importance	41	protected area contained by site	41

IUCN Habitat	Habitat detail	Extent (% of site)
Wetlands (inland)	Freshwater lakes and pools	-

For further information about the IUCN habitat classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Middle Ishikari River basin. Downloaded from http://datazone.birdlife.org/site/factsheet/15023 on 11/06/2023.