Data Zone
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.
