Lake Tåkern (861)
Sweden, Europe
Site overview
KBA status: confirmed
Global KBA criteria: D1a
Year of last assessment: 2000
National site name: Tåkern
Central coordinates: Latitude: 58.3523, Longitude: 14.8170
System: freshwater, terrestrial
Elevation (m): 94 to 100
Area of KBA (km2): 54.03261
Protected area coverage (%): 98.48
KBA classification: Global
Legacy site: Yes
Site details
Site description: A shallow, nutrient-rich lake that was partly drained in the 19th century, allowing extensive reedbeds to colonize about one third of the total area. The shallow waters (average depth 0.8 m) are rich in aquatic flora. The surrounding grassland is mainly grazed, and there are some areas of arable land.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Additional biodiversity: The IBA is important for breeding waterbirds and other species of wetland habitats. It also holds over 20,000 passage waterbirds on a regular basis. Breeding species of global conservation concern that do not meet IBA criteria: Crex crex.
Habitats
Land use: agriculture (10%) | forestry (10%) | hunting (95%) | nature conservation and research (100%)
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Forest | 10 | |
| Grassland | 5 | |
| Wetlands(Inland) | 85 |
Threats
Summary of threats to biodiversity at KBA: Some meadows have become overgrown as a result of undergrazing, with a consequent adverse effect on waders. Mechanical methods (for example, mowing) are being used to simulate the effects of grazing. The turbidity of the lake has increased, leading to a decrease in the number of birds using the site (`Other' threat).
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops | Agro-industry farming | Ongoing |
| Biological resource use | Hunting & collecting terrestrial animals | Intentional use (species being assessed is the target) | Ongoing |
| Biological resource use | Fishing & harvesting aquatic resources | Intentional use: subsistence/small scale (species being assessed is the target) [harvest] | Ongoing |