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Location Japan, Ibaraki
Central coordinates 140o 24.00' East  36o 2.00' North
IBA criteria A1, A3, A4i
Area 17,000 ha
Altitude 0 - 15m
Year of IBA assessment 2004

Wild Bird Society of Japan



Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Common Teal Anas crecca winter  2004  present  A4i  Least Concern 
Pacific Golden Plover Pluvialis fulva passage  2004  present  A4i  Least Concern 
Little Ringed Plover Charadrius dubius breeding  2004  present  A4i  Least Concern 
Marsh Grassbird Locustella pryeri breeding  2004  present  A1, A3  Near Threatened 
Ochre-rumped Bunting Emberiza yessoensis breeding  2004  present  A3  Near Threatened 

IBA Monitoring

2010 low not assessed low
unset
Poor - based on little, or potentially unreliable/unrepresentative, data

Human intrusions and disturbance recreational activities likely in long term (beyond 4 years) some of area/population (10-49%) no or imperceptible deterioration low

Whole area of site (>90%) covered by appropriate conservation designation  Unknown  Unknown  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kasumigaura Prefectural Wildlife Protection Area 5,290 unknown 0  
Suigo - Tsukuba Quasi National Park 34,309 protected area contains site 17,000  
Ukishima Prefectural Wildlife Protection Area 300 unknown 0  

Habitats

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

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Lake Kasumigaura, Ukisima. Downloaded from http://www.birdlife.org on 27/11/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife