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 Thrush Turdus cardis | LC | breeding (2003) | present | A3 |
| Brown-headed Thrush Turdus chrysolaus | LC | breeding (2003) | present | A3 |
| Japanese Robin Larvivora akahige | LC | breeding (2003) | present | A3 |
| Japanese Accentor Prunella rubida | LC | resident (2003) | present | A3 |
| Grey Bunting Emberiza variabilis | LC | breeding (2003) | present | A3 |
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 | very poor | high | 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 |
| Forest | good (>90%) | very poor (<40%) | very poor |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | likely in short term (<4 years) | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | Not assessed | Some limited conservation initiatives are in place | low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Tsurugi Wildlife Protection Area (government) | Other (-) | - |
| 1956 | Okumononobe | 都道府県立自然公園 (V) | 15 |
| 1964 | Tsurugisan | 国定公園 (V) | 100 |
| 1989 | Tsurugisansankei | 国指定鳥獣保護区 (IV) | 72 |
| 2003 | Shikoku Mountains | 緑の回廊 (V) | 42 |
| 2008 | Tenjinmaru | 都道府県指定鳥獣保護区 (IV) | 2 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tsurugi range (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/tsurugi-range-iba-japan on 23/12/2024.