Data Zone
The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):| Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
|---|---|---|---|---|---|
| Tundra Swan Cygnus columbianus | LC | winter | 2003 | present | A4i |
| Bean Goose Anser fabalis | LC | passage | 2003 | present | A4i |
| Greater White-fronted Goose Anser albifrons | LC | passage | 2003 | present | A4i |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
| 2015 | near favourable | high | negligible |
| Was the whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | - | |
| State (condition of the trigger species' habitats) | ||||||
|---|---|---|---|---|---|---|
| Habitat | Habitat detail | Reference area (ha) | Actual area (ha) | Habitat quantity (% remaining) | Habitat quality (carrying capacity) | Result |
| Artificial/Terrestrial | 0 | 0 | good (> 90%) | moderate (70-90%) | near favourable | |
| Pressure (threats to the trigger species and/or their habitats) | |||||
|---|---|---|---|---|---|
| Threat level 1 | Threat level 2 | Timing | Scope | Severity | Result |
| Biological resource use | hunting & collecting terrestrial animals - intentional use (species being assessed is the target) | past (and unlikely to return) and no longer limiting | whole area/population (>90%) | no or imperceptible deterioration | low |
| Biological resource use | hunting & collecting terrestrial animals - persecution/control | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
| Geological events | volcanic eruptions | past (and unlikely to return) and no longer limiting | whole area/population (>90%) | no or imperceptible deterioration | low |
| Pollution | garbage & solid waste | happening now | some of area/population (10-49%) | moderate to rapid deterioration | high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected-area designation | Management planning | Other conservation action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | negligible |
| Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
|---|---|---|
| Wetlands (inland) | Freshwater lakes and pools | - |
| Artificial/Terrestrial | Rice paddies | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Kyu-Osatsunuma. Downloaded from
http://datazone.birdlife.org/site/factsheet/kyu-osatsunuma-iba-japan on 27/09/2023.
