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Location Japan, Miyagi
Central coordinates 140o 58.00' East  38o 38.00' North
IBA criteria A4i
Area 351 ha
Altitude 0 - 60m
Year of IBA assessment 2004

Wild Bird Society of Japan

Site description A dam reservoir located on the border of hilly areas and plain fields in the middle part of Miyagi Prefecture, Lake Kejonuma has been maintained as a large reservoir for irrigation made in a valley of a hilly area. Trapa japonica thrive in the shallow water areas, while Phragmites australis and other hydrophytes grow along narrow zone of the shorelines. Although parks and other facilities are provided on the lakesides, other areas comprise paddy fields, fields, discontinuous secondary forests of Quercus serrata and Castanea crenata trees, plantation of Cyryptomeria japonica and scattered residential grounds -- an area of 'SATOYAMA' feature that is closely connected with human life.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bean Goose Anser fabalis winter  2004  present  A4i  Least Concern 
Greater White-fronted Goose Anser albifrons winter  2004  present  A4i  Least Concern 

IBA Monitoring

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

No known threats no known threats happening now whole area/population (>90%) no or imperceptible deterioration low

Whole area of site (>90%) covered by appropriate conservation designation  A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species  The conservation measures needed for the site are being comprehensively and effectively implemented  high 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kejo-numa Wetlands of International Importance (Ramsar) 34 protected area contained by site 34  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lake Kejonuma. Downloaded from on 22/10/2016

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