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 |
|---|---|---|---|---|
| Whooper Swan Cygnus cygnus | LC | passage (2003) | present | A4i |
| Brent Goose Branta bernicla | LC | passage (2003) | present | A4i |
| Bean Goose Anser fabalis | LC | winter (2003) | present | A4i |
| Common Goldeneye Bucephala clangula | LC | winter (2003) | present | A4i |
| Greater Scaup Aythya marila | LC | winter (2003) | present | A4i |
| Eurasian Wigeon Mareca penelope | LC | winter (2003) | present | A4i |
| Red-crowned Crane Grus japonensis | VU | breeding (2003) | present | A1, A3, A4i |
| Ruddy Turnstone Arenaria interpres | NT | passage (2003) | present | A4i |
| Red-necked Stint Calidris ruficollis | NT | passage (2003) | present | A4i |
| Latham's Snipe Gallinago hardwickii | NT | breeding (2003) | present | A3 |
| Grey-tailed Tattler Tringa brevipes | LC | passage (2003) | present | A4i |
| Steller's Sea-eagle Haliaeetus pelagicus | VU | winter (2003) | present | A1 |
| Middendorff's Grasshopper-warbler Helopsaltes ochotensis | LC | breeding (2003) | present | A3 |
| Sakhalin Grasshopper-warbler Helopsaltes amnicola | 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 | high |
| 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%) | moderate (70–90%) | moderate |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Transportation and service corridors | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Geological events | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Invasive and other problematic species and genes | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | The conservation measures needed for the site are being comprehensively and effectively implemented | high |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1962 | Notsuke furen | 都道府県立自然公園 (V) | 39 |
| 1980 | Barasanto | 都道府県指定鳥獣保護区 (IV) | 1 |
| 1984 | Onneto | 都道府県指定鳥獣保護区 (IV) | 2 |
| 1992 | Hattaushi | 都道府県指定鳥獣保護区 (IV) | <1 |
| 1993 | Furenko | 国指定鳥獣保護区 (IV) | 31 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) | |
| Shrubland | major (>10) | |
| Forest | minor (<10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Furen, On-netou (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/lake-furen-on-netou-iba-japan on 23/12/2024.