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 IBA criteria.
Populations meeting IBA criteria ('key species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Mandarin Duck Aix galericulata | LC | winter (2003) | present | A4i |
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 status | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2015 | near favourable | high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | - | |
| State (condition of the key species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Wetlands (inland) | good (>90%) | moderate (70–90%) | near favourable |
| Pressure (threats to the key species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | moderate deterioration (10–30% in 3 generations) | high |
| Geological events | happening now | most of population/area (50–90%) | slow deterioration (1–10% over 3 generations) | high |
| Response (conservation actions taken for the key species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | very low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1936 | Yoshino kumano | 国立公園 (V) | 100 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | - | Artificial wetlands |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Futatsuno reservoir (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/futatsuno-reservoir-iba-japan on 16/01/2025.