JP109
Yahagigawa estuary


IBA Criteria

Year of most recent IBA criteria assessment: 2004

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Greater Scaup Aythya marila LC winter 2003 present A4i
Grey-headed Lapwing Vanellus cinereus LC resident 2003 present A4i

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2015 high unfavourable negligible
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information -

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - scale unknown/unrecorded happening now majority/most of area/population (50-90%) slow but significant deterioration high
Energy production and mining renewable energy likely in short term (within 4 years) small area/few individuals (<10%) very rapid to severe deterioration low

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Wetlands (inland) 0 0 good (> 90%) poor (40-69%) unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) No management planning has taken place Some limited conservation initiatives are in place negligible
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Mikawawan 国定公園 9,457 protected area overlaps with site 0
Mikawananbu 都道府県指定鳥獣保護区 720 protected area is adjacent to site 0
Common fishery right area(Aichi) 共同漁業権区域 32,471 protected area overlaps with site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Estuarine waters, Intertidal mud, sand or salt flats -
For further information about the habitat classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Yahagigawa estuary. Downloaded from http://www.birdlife.org on 26/06/2022.