Data Zone
The site was identified as internationally important for bird conservation in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| 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 | NT | winter (2003) | present | A4i |
| Terek Sandpiper Xenus cinereus | LC | passage (2003) | present | A4i |
| Grey-tailed Tattler Tringa brevipes | LC | 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 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2015) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2015 | moderate | medium | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | habitat | - | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Marine Coastal/Supratidal | good (>90%) | moderate (70–90%) | moderate |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | likely in long term (>4 years) | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | medium |
| Agricultural expansion and intensification | likely in long term (>4 years) | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of area 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 |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1956 | Genkai | 国定公園 (V) | 100 |
| 1976 | Fukuoka shi | 都道府県指定鳥獣保護区 (IV) | 93 |
| 2003 | Common fishery right area(Fukuoka) | 共同漁業権区域 (VI) | 96 |
| 2003 | Wajiro higata | 国指定鳥獣保護区 (IV) | 3 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) | |
| Marine Neritic | major (>10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Hakata bay (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/hakata-bay-iba-japan on 23/12/2024.