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 |
|---|---|---|---|---|
| Middendorff's Grasshopper-warbler Helopsaltes ochotensis | 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 | moderate | 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%) | moderate (70–90%) | moderate |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Energy production and mining | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Pollution | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Residential and commercial development | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Human intrusions and disturbance | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Geological events | likely in long term (>4 years) | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| 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 | Some limited conservation initiatives are in place | low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1949 | Shikotsu toya | 国立公園 (II) | 86 |
| 1972 | Horobetsu dam | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1974 | Toyako | 都道府県指定鳥獣保護区 (IV) | 6 |
| 1981 | Kuttarako | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1981 | Jozankei | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1983 | Shikotsuko monbetsudake | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1984 | Poroto | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1986 | Shikotsuko | 都道府県指定鳥獣保護区 (IV) | 19 |
| 1989 | Hokudai ichinosawa | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1996 | Area around Mt. Izaridake | 森林生態系保護地域 (Ib) | 3 |
| 2001 | Shikotsu and Muine | 緑の回廊 (V) | 4 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | - | |
| Wetlands (inland) | - | Freshwater lakes and pools |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Shikotsu, Toya (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/shikotsu-toya-iba-japan on 23/12/2024.