The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
---|---|---|---|---|---|
Black-faced Spoonbill Platalea minor | EN | winter | 2003 | present | A1, A4i |
Whimbrel Numenius phaeopus | LC | passage | 2003 | present | A4i |
Red-necked Stint Calidris ruficollis | NT | passage | 2003 | present | A4i |
Dunlin Calidris alpina | LC | winter | 2003 | present | A4i |
Terek Sandpiper Xenus cinereus | LC | passage | 2003 | present | A4i |
Grey-tailed Tattler Tringa brevipes | NT | passage | 2003 | present | A4i |
Common Greenshank Tringa nebularia | LC | winter | 2003 | present | A4i |
Saunders's Gull Saundersilarus saundersi | VU | winter | 2003 | present | A1 |
Pleske's Grasshopper-warbler Helopsaltes pleskei | VU | breeding | 2003 | present | A1 |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).
IBA conservation assessment | |||
---|---|---|---|
Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
2015 | near favourable | medium | low |
Was the whole site assessed? | State assessed by | Accuracy of information | |
no | habitat | - |
State (condition of the trigger species' habitats) | ||||||
---|---|---|---|---|---|---|
Habitat | Habitat detail | Reference area (ha) | Actual area (ha) | Habitat quantity (% remaining) | Habitat quality (carrying capacity) | Result |
Wetlands (inland) | 0 | 0 | good (> 90%) | moderate (70-90%) | near favourable |
Pressure (threats to the trigger species and/or their habitats) | |||||
---|---|---|---|---|---|
Threat level 1 | Threat level 2 | Timing | Scope | Severity | Result |
Agricultural expansion and intensification | annual & perennial non-timber crops - scale unknown/unrecorded | likely in long term (beyond 4 years) | majority/most of area/population (50-90%) | slow but significant deterioration | medium |
Human intrusions and disturbance | recreational activities | likely in long term (beyond 4 years) | whole area/population (>90%) | slow but significant deterioration | medium |
Response (conservation actions taken for the trigger species and/or their habitats) | |||
---|---|---|---|
Protected-area designation | Management planning | Other conservation action | Result |
Little/none of site covered (<10%) | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | Some limited conservation initiatives are in place | low |
Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
---|---|---|---|---|
Wajiro higata | 国指定鳥獣保護区 | 254 | protected area contained by site | 0 |
Genkai | 国定公園 | 10,158 | protected area overlaps with site | 9,000 |
Fukuoka shi | 都道府県指定鳥獣保護区 | 26,417 | protected area overlaps with site | 0 |
Common fishery right area(Fukuoka) | 共同漁業権区域 | 127,630 | protected area overlaps with site | 0 |
Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
---|---|---|
Marine Intertidal | - | |
Wetlands (inland) | Rivers and streams, Permanent swamps | - |
Marine Neritic | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Hakata bay. Downloaded from
http://datazone.birdlife.org/site/factsheet/hakata-bay-iba-japan on 05/12/2023.