SE053
Lake Åsnen


IBA Justification

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 IBA criteria.

Populations meeting IBA criteria ('key species') at the site:
Species Red List Season (year/s of estimate) Size IBA criteria
Bean Goose Anser fabalis LC passage (1990–1997) 8,000 individuals A4i, B1i, C3
Goosander Mergus merganser LC passage (1990–1997) 10,000 individuals A4i, B1i, C3
Osprey Pandion haliaetus LC breeding (1993) 50 breeding pairs B2, C6
White-tailed Sea-eagle Haliaeetus albicilla LC passage (1990–1997) 20 individuals A1, C1

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
- Vastra Asnens Ovarld Nature Reserve (-) 7
1900 Västra Åsnens övärld Naturreservat (V) 2
1900 Agnäs Naturreservat (V) 1
1900 Långö Naturreservat (Ia) <1
1900 Husebymaden Naturreservat (IV) <1
1900 Bjurkärr Naturreservat (IV) 1
1900 Toftåsa myr Naturreservat (Ia) 1
1996 Grytö Naturreservat (V) 2
1998 Lunnabacken Naturreservat (IV) <1
2007 Biotopskydd 2007:204 Biotopskyddsområde (Ia) <1
2007 Biotopskydd 2007:205 Biotopskyddsområde (Ia) <1
2008 Hunshult Naturreservat (Ia) <1
2009 Utnäsuddens övärld Naturreservat (V) 9
2009 Biotopskydd 2009:146 Biotopskyddsområde (Ia) <1
2010 Biotopskydd 2010:41 Biotopskyddsområde (Ia) <1
2011 Biotopskydd 2011:199 Biotopskyddsområde (Ia) <1
2011 Biotopskydd 2011:22 Biotopskyddsområde (Ia) <1
2014 Ekefors Naturreservat (IV) <1
2016 Hackekvarn Naturreservat (IV) <1

Habitats

Habitat % of IBA Habitat detail
Wetlands (inland) major (>10) Standing freshwater
Forest minor (<10) Broadleaved deciduous woodland; Native coniferous woodland
Grassland minor (<10) Mesophile grasslands

Land use

Land use % of IBA
agriculture -
forestry -
tourism/recreation -
water management -


Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Lake Åsnen (Sweden). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-åsnen-iba-sweden on 14/01/2025.