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Location Japan, Aomori
Central coordinates 140o 24.00' East  40o 45.00' North
IBA criteria A4i
Area 570 ha
Altitude 0 - 30m
Year of IBA assessment 2004

Wild Bird Society of Japan



Site description Mawarizeki and Sunazawa reservoirs, which are located in the west of Aomori Prefecture, are agricultural ones surrounded by apple farms and rice paddies. The banks are reinforced by Phragmites australis, Salix and cement blocks as well. The reservoirs are nearly full of water in spring, and it is drained in autumn. The whole surface is frozen in winter.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta passage  2004  present  A4i  Least Concern 
Bean Goose Anser fabalis passage  2004  present  A4i  Least Concern 
Greater White-fronted Goose Anser albifrons passage  2004  present  A4i  Least Concern 
Tundra Swan Cygnus columbianus passage  2004  present  A4i  Least Concern 

IBA Monitoring

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

Pollution agricultural & forestry effluents - type unknown/unrecorded likely in long term (beyond 4 years) some of area/population (10-49%) no or imperceptible deterioration low

Some of site covered (10-49%)  Unknown  Unknown  negligible 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial Rice paddies  -
Wetlands (inland) Artificial wetlands  -

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Mawarizeki and Sunazawa reservoir. Downloaded from http://www.birdlife.org on 02/08/2015

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