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Location Japan, Hokkaido
Central coordinates 145o 1.00' East  43o 59.00' North
IBA criteria A1, A3, A4i
Area 123,000 ha
Altitude 0 - 1,661m
Year of IBA assessment 2004

Wild Bird Society of Japan

Site description Shiretoko Peninsula is narrow with a length of 70 km and a width of 25 km at the bottom. In the center of the slender peninsula is the highest mountain, Mt Rausudake (1,661m) and other mountains extend longitudinally. Large mammals such as Ursus arotos yesoensls are in high density. Mt Sharidake (1,547m) is in the Chishima volcanic zone, and on the upper part higher than 1,000 m, Pinus pumila and many alpine flowers can be seen. Arctic Warblers breed among Pinus pumila on Mt Rausudake, Onnebetsudake and Mt Sharidake are the only known breeding areas in Hokkaido.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Japanese Cormorant Phalacrocorax capillatus breeding  2004  present  A4i  Least Concern 
Steller's Sea-eagle Haliaeetus pelagicus winter  2004  present  A1  Vulnerable 
Slaty-backed Gull Larus schistisagus breeding  2004  present  A4i  Least Concern 
Blakiston's Eagle-owl Bubo blakistoni resident  2004  present  A1, A3  Endangered 
Arctic Warbler Phylloscopus borealis breeding  2004  present  A3  Least Concern 

IBA Monitoring

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

Invasive & other problematic species, genes & diseases problematic native species/diseases - unspecified species happening now majority/most of area/population (50-90%) slow but significant deterioration high

Some of site covered (10-49%)  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  medium 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Onnebetsudake Wilderness Area 1,900 protected area contained by site 1,900  
Shiretoko Forest Ecosystem Reserve 71,000 protected area contained by site 35,500  
Shiretoko National Park 38,633 protected area contained by site 46,000  
Shiretoko World Heritage Site 34,000 protected area contained by site 34,000  


IUCN habitat Habitat detail Extent (% of site)
Forest   -
Coastline Sea cliffs and rocky shores  -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Shiretoko, Mount Syari-dake. Downloaded from on 24/10/2016

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