Data Zone
Year of most recent IBA criteria assessment: 2006
Populations of IBA trigger species| Species | Current IUCN Red List Category | Season | Year(s) of estimate | Population estimate | IBA Criteria Triggered |
|---|---|---|---|---|---|
| Red-breasted Goose Branta ruficollis | VU | passage | 2000 | 250 individuals | A1 |
| Greater White-fronted Goose Anser albifrons | LC | passage | 2000 | 10,000-25,000 individuals | A4i |
| Pied Avocet Recurvirostra avosetta | LC | breeding | 2000 | 125-150 breeding pairs | A4i |
| Little Gull Hydrocoloeus minutus | LC | passage | 2000 | 1,500-2,000 individuals | A4i |
| Pallid Harrier Circus macrourus | NT | breeding | 2000 | 10-15 breeding pairs | A1 |
| A4iii Species group - waterbirds | n/a | passage | 2000 | 12,650-29,350 individuals | A4iii |
Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.
For more information about the IBA assessment process and criteria please click here
Protection status:
| Protected Area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) |
|---|---|---|---|---|
| Tobol-Ishim Forest-steppe | Ramsar Site, Wetland of International Importance | 1,217,000 | protected area contains site | 0 |
| Ozera Tobolo-Ishimskoy lesostepi | International Park | 0 | protected area contains site | 0 |
| IUCN Habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Grassland | Steppes and dry calcareous grassland | - |
| Wetlands (inland) | Standing brackish and salt water, Mud flats and sand flats | - |
| Artificial/Terrestrial | Arable land | - |
| Land-use | Extent (% of site) |
|---|---|
| agriculture | - |
| rangeland/pastureland | - |
| hunting | - |
Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Siverga lake. Downloaded from
http://www.birdlife.org on 22/01/2021.
