Lake Östen

IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC passage 1980-1988 1,000 individuals A4i, B1i, C2
Bean Goose Anser fabalis LC passage 1980-1988 10,500 individuals A4i, B1i, C3
Common Grasshopper-warbler Locustella naevia LC breeding 1990-1997 60 breeding pairs B3

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

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Östen Naturreservat 1,397 protected area overlaps with site 1,010
Östen Special Protection Area (Birds Directive) 1,475 protected area overlaps with site 1,020
Logården Naturreservat 88 protected area overlaps with site 30
Lake Östen Ramsar Site, Wetland of International Importance 1,010 is identical to site 1,010


IUCN Habitat Habitat detail Extent (% of site)
Forest Native coniferous woodland -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Fens, transition mires and springs, Water fringe vegetation -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Lake Östen. Downloaded from on 24/06/2021.