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The site was identified as internationally important for bird conservation in 2007 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
Whooper Swan Cygnus cygnus	LC	passage (2004–2007)	1,100 birds	A4i, B1i, C2
Bean Goose Anser fabalis	LC	passage (2004–2007)	8,200 birds	B1i, C3
Goosander Mergus merganser	LC	passage (2004–2006)	2,000–3,000 birds	B1i, C3
Gadwall Mareca strepera	LC	breeding (2004–2006)	100–200 pairs	B1i, C3
Common Crane Grus grus	LC	passage (2004–2007)	500–1,600 birds	B1i, C2
Black Tern Chlidonias niger	LC	breeding (2004–2006)	8–26 pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding (1996)	10–15 pairs	C6

Year	Protected Area	Designation (management category)	% coverage of IBA
1900	Aspnäs	Naturreservat (IV)	18
1900	Långnäset	Naturreservat (Ia)	2
1900	Iggelbo	Naturreservat (IV)	<1
1900	Lindsta	Naturreservat (Ia)	<1
1900	Kalvnäset	Naturreservat (IV)	<1
2004	Biotopskydd 2004:455	Biotopskyddsområde (Ia)	<1

Habitat	% of IBA	Habitat detail
Wetlands (inland)	65	Standing freshwater; Water fringe vegetation
Artificial/Terrestrial	20	Arable land
Forest	15	Broadleaved deciduous woodland; Native coniferous woodland; Mixed woodland; Alluvial and very wet forest
Grassland	minor (<10)	Humid grasslands

Land use	% of IBA
agriculture	20
tourism/recreation	20
forestry	15
not utilised	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Tämnaren (Sweden). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-tämnaren-iba-sweden on 23/12/2024.