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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 estimate	IBA Criteria Triggered
Anas crecca	NR	winter	2003	present	A4i
Pacific Golden Plover Pluvialis fulva	LC	passage	2003	present	A4i
Little Ringed Plover Charadrius dubius	LC	breeding	2003	present	A4i
Marsh Grassbird Helopsaltes pryeri	NT	breeding	2003	present	A1, A3
Ochre-rumped Bunting Emberiza yessoensis	NT	breeding	2003	present	A3

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

Threats to the site (pressure)
Threat Level 1	Threat Level 2	Timing	Scope	Severity	Result
Biological resource use	hunting & collecting terrestrial animals - intentional use (species being assessed is the target)	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Biological resource use	hunting & collecting terrestrial animals - persecution/control	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high

Condition of habitat (state)
Habitat	Habitat Detail	Reference Area (ha)	Actual Area (ha)	% of habitat remaining	% of carrying capacity (overall)	Result
Wetlands (inland)		0	0	good (> 90%)	moderate (70-90%)	near favourable

Conservation actions taken at site (response)
Conservation Designation	Management Planning	Conservation Action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management plan exists but the management planning process has begun	Some limited conservation initiatives are in place	low

For more information about IBA monitoring please click here

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Ushibori chisaki	都道府県指定鳥獣保護区	1,125	protected area overlaps with site	0
Ukishima	都道府県指定鳥獣保護区	300	protected area overlaps with site	0
Takasuzaki	都道府県指定鳥獣保護区	166	protected area is adjacent to site	0
Takahamairi	都道府県指定鳥獣保護区	460	protected area overlaps with site	0
Suigo-Tsukuba	国定公園	34,956	protected area contains site	17,000
Kasumigaura	都道府県指定鳥獣保護区	5,290	protected area overlaps with site	0
Edozaki	都道府県指定鳥獣保護区	1,468	protected area overlaps with site	0
Ayumisaki	都道府県指定鳥獣保護区	970	protected area overlaps with site	0

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

For further information about the habitat classification please click here.

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Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Lake Kasumigaura, Ukisima. Downloaded from http://www.birdlife.org on 17/05/2022.