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 |
|---|---|---|---|---|
| Japanese Woodpigeon Columba janthina | LC | resident (2003) | present | A2 |
| Pleske's Grasshopper-warbler Helopsaltes pleskei | VU | breeding (2003) | present | A1 |
| A4iv Species group - soaring birds/cranes | n/a | passage (2003) | min 20,000 birds | A4iv |
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 | good | not assessed | very low |
| 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 |
| Forest | good (>90%) | good (>90%) | good |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Some of area covered (10–49%) | Unknown | Very little or no conservation action taking place | very low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1961 | Mitake | 都道府県指定鳥獣保護区 (IV) | 2 |
| 1964 | Takakobuyama | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1967 | Sago | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1967 | Toyo chugakko aigorin | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1968 | Iki-Tsushima | 国定公園 (V) | 16 |
| 1969 | Shiratake | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1969 | Otsuki shochugakko aigorin | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1971 | Taterasan | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1972 | Kisaka | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1976 | Myoken | 都道府県自然環境保全地域 (V) | <1 |
| 1976 | Oumi kaigan | 都道府県自然環境保全地域 (V) | <1 |
| 1976 | Nesozaki | 都道府県自然環境保全地域 (V) | <1 |
| 1976 | Nemunoki | 都道府県自然環境保全地域 (V) | <1 |
| 1976 | Mogi kaigan | 都道府県自然環境保全地域 (V) | <1 |
| 1978 | Tsushima Kanzaki | Marine Park (V) | <1 |
| 1983 | Shushigawa | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1986 | Seibu chugakko aigorin | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1986 | Kechi chugakko aigorin | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1986 | Toyotama chugakko aigorin | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1989 | Ina | 国指定鳥獣保護区 (IV) | 2 |
| 1989 | Sasuna | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1992 | Naiinjima | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1995 | Shimayamajima | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1995 | Kuroshima | 都道府県指定鳥獣保護区 (IV) | <1 |
| 2002 | Shushinouchi | 都道府県指定鳥獣保護区 (IV) | <1 |
| 2002 | Saozaki | 都道府県指定鳥獣保護区 (IV) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tsushima islands (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/tsushima-islands-iba-japan on 23/12/2024.