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') at the site:| Species | Red List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Black-tailed Gull Larus crassirostris | LC | breeding | 2003 | present | A4i |
| A4iii Species group - seabirds | n/a | breeding | 2003 | min 10,000 breeding pairs | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.
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 | near favourable | high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | - | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Grassland | good (> 90%) | moderate (70-90%) | near favourable |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Transportation and service corridors | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
| Natural system modifications | happening now | some of area/population (10-49%) | moderate to rapid deterioration | high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Whole area of site (>90%) covered by appropriate conservation designation | 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 | medium |
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1953 | Tanesashi kaigan hashikami dake | 都道府県立自然公園 | 100 |
| 1971 | Same | 都道府県指定鳥獣保護区 | 100 |
| 2003 | Common fishery right area(Aomori) | 共同漁業権区域 | 50 |
| 2013 | Sanriku Fukko (reconstruction) | 国立公園 | 100 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Grassland | - | |
| Marine Coastal/Supratidal | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kabushima islet (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/kabushima-islet-iba-japan on 23/11/2024.