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 Pygmy Woodpecker Picoides kizuki | LC | resident (2003) | present | A3 |
| Ashy Minivet Pericrocotus divaricatus | LC | breeding (2003) | present | A3 |
| Varied Tit Sittiparus varius | LC | resident (2003) | present | A3 |
| Japanese Thrush Turdus cardis | LC | breeding (2003) | present | A3 |
| Blue-and-white Flycatcher Cyanoptila cyanomelana | LC | breeding (2003) | present | A3 |
| Japanese Robin Larvivora akahige | LC | breeding (2003) | present | A3 |
| Japanese Accentor Prunella rubida | LC | resident (2003) | present | A3 |
| Japanese Grosbeak Eophona personata | LC | resident (2003) | present | A3 |
| Yellow Bunting Emberiza sulphurata | LC | breeding (2003) | present | A3 |
| Grey Bunting Emberiza variabilis | LC | resident (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 | moderate | low | 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%) | moderate (70–90%) | moderate |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Pollution | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Most of area (50–90%) covered (including the most critical parts for important bird species) | No management planning has taken place | Very little or no conservation action taking place | low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1949 | Joshin'etsukogen | 国立公園 (II) | 100 |
| 1951 | Asama | 国指定鳥獣保護区 (IV) | 7 |
| 1976 | Komatsubara | 都道府県自然環境保全地域 (V) | <1 |
| 1980 | Shiga Highland | UNESCO-MAB Biosphere Reserve (UA) | 10 |
| 1980 | Naebasan | 都道府県指定鳥獣保護区 (IV) | 4 |
| 1980 | Kiyotsukyo | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1982 | Nozori | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1982 | Torikabuto yama | 都道府県自然環境保全地域 (V) | 1 |
| 1983 | Kusatsu | 都道府県指定鳥獣保護区 (IV) | 2 |
| 1984 | Hoshi | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1988 | Shiga kogen | 都道府県指定鳥獣保護区 (IV) | 3 |
| 1993 | Area around Mt. Saburuyama | 森林生態系保護地域 (Ib) | 12 |
| 2000 | Mikuni Line | 緑の回廊 (V) | 1 |
| 2001 | Asama | 都道府県指定鳥獣保護区 (IV) | 2 |
| 2003 | Saburuyama | 都道府県指定鳥獣保護区 (IV) | 4 |
| 2004 | Yakebita | 都道府県指定鳥獣保護区 (IV) | 1 |
| 2006 | Annandaira | 都道府県指定鳥獣保護区 (IV) | 1 |
| 2007 | Higashi | 都道府県指定鳥獣保護区 (IV) | 3 |
| 2009 | Jigokudani | 都道府県指定鳥獣保護区 (IV) | 1 |
| 2010 | Naebasan | 都道府県指定鳥獣保護区 (IV) | <1 |
| 2011 | Takai | 都道府県指定鳥獣保護区 (IV) | 3 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mounts Asama, Shirane and Tanigawa (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/mounts-asama-shirane-and-tanigawa-iba-japan on 23/12/2024.