Data Zone
The site was identified as internationally important for bird conservation in 2016 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 |
|---|---|---|---|---|
| Streaked Shearwater Calonectris leucomelas | NT | breeding (2017) | 24,725–98,900 birds | A4ii |
| Black-tailed Gull Larus crassirostris | LC | breeding (-) | min 20,000 birds | A4i |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1948 | Shonai kaihin | 都道府県立自然公園 (V) | <1 |
| 1957 | Araya | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1958 | Koyachi | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1959 | Senami sasagawanagare awashima | 都道府県立自然公園 (V) | <1 |
| 1959 | Mizubayashi | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1962 | Kosagawa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1963 | Chokai | 国定公園 (V) | <1 |
| 1963 | Kitaura | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1964 | Minamiiso | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1964 | Awashima | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1964 | Sanpoku | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1965 | Michikawa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1966 | Sunayama | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1967 | Honjohama | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1972 | Tobishima | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1972 | Akita-Yamagata Oki Kaiiki | 指定海域 (VI) | - |
| 1972 | Sado Gyoshogun Kaiiki | 指定海域 (VI) | - |
| 1973 | Oga | 国定公園 (V) | <1 |
| 1974 | Senami | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1977 | Hamadate | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1977 | Koyoshigawa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1980 | Sanze | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1983 | Osugo | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1985 | Oyakawa | 都道府県自然環境保全地域 (V) | <1 |
| 1989 | Kuguriiwa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1989 | Oyakawa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1995 | Nihokakanaura | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1995 | Kisakatarinkai | 都道府県指定鳥獣保護区 (IV) | <1 |
| 2003 | Common fishery right area(Yamagata) | 共同漁業権区域 (VI) | 1 |
| 2004 | Common fishery right area(Akita) | 共同漁業権区域 (VI) | 2 |
| 2004 | Omakuba | 都道府県指定鳥獣保護区 (IV) | <1 |
| 2005 | Mogamigawa kako | 国指定鳥獣保護区 (IV) | <1 |
| 2013 | Common fishery right area(Niigata) | 共同漁業権区域 (VI) | 1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Neritic | 100 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Awashima, Tobishima and Osyakujima Islands - Marine (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/awashima-tobishima-and-osyakujima-islands--marine-iba-japan on 27/12/2024.