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Location Japan, Tokyo
Central coordinates 142o 8.00' East  27o 40.00' North
IBA criteria A1, A2
Area 586 ha
Altitude 0 - 159m
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
Black-footed Albatross Phoebastria nigripes passage  2004  present  A1  Near Threatened 
Japanese Woodpigeon Columba janthina resident  2004  present  A2  Near Threatened 
Bonin White-eye Apalopteron familiare resident  2004  present  A2  Near Threatened 

IBA Monitoring

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

Invasive and other problematic species and genes problematic native species/diseases - unspecified species likely in long term (beyond 4 years) small area/few individuals (<10%) 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  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  high 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ogasawara National Park 6,099 protected area contains site 586  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest   -
Coastline Rock stacks and islands  -

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Mukojima islands. Downloaded from http://www.birdlife.org on 20/12/2014

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