Data Zone
The site was identified as internationally important for bird conservation in 2000 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 |
|---|---|---|---|---|
| Eurasian Bittern Botaurus stellaris | LC | breeding (1996) | 10–12 pairs | B2, C6 |
| Western Marsh-harrier Circus aeruginosus | LC | breeding (1996) | 17 pairs | C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2018) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2018 | good | low | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | good | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Wetlands (inland) | good (>90%) | good (>90%) | good |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Biological resource use | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Agricultural expansion and intensification | likely in long term (>4 years) | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| 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(50–90%) covered (including the most critical parts for important bird species) | A management plan exists, but it is out of date or not comprehensive | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 2002 | Dättern I | Naturreservat (IV) | 36 |
| 2006 | Dättern etapp 2 | Naturreservat (IV) | 55 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 98 | Standing freshwater; Water fringe vegetation; Rivers and streams |
| Grassland | 2 | Humid grasslands |
| Land use | % of IBA |
|---|---|
| agriculture | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Dättern (Sweden). Downloaded from
https://datazone.birdlife.org/site/factsheet/lake-dättern-iba-sweden on 26/12/2024.