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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Whooper Swan Cygnus cygnus	LC	passage	2004-2007	1,100 individuals	A4i, B1i, C2
Bean Goose Anser fabalis	LC	passage	2004-2007	8,200 individuals	B1i, C3
Goosander Mergus merganser	LC	passage	2004-2006	2,000-3,000 individuals	B1i, C3
Gadwall Mareca strepera	LC	breeding	2004-2006	100-200 breeding pairs	B1i, C3
Common Crane Grus grus	LC	passage	2004-2007	500-1,600 individuals	B1i, C2
Black Tern Chlidonias niger	LC	breeding	2004-2006	8-26 breeding pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	1996	10-15 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

Year	Protected Area	Designation	% overlap with IBA
1900	Aspnäs	Naturreservat	18
1900	Långnäset	Naturreservat	2
1900	Iggelbo	Naturreservat	<1
1900	Femton ekar	Naturminne	-
1900	Kalvnäset	Naturreservat	<1
1900	Lindsta	Naturreservat	<1
1996	Tämnaren öst	Special Protection Area (Birds Directive)	27
1997	Kalvnäset	Site of Community Importance (Habitats Directive)	<1
2000	Tämnaren öst	Site of Community Importance (Habitats Directive)	27
2001	Tämnaren väst	Site of Community Importance (Habitats Directive)	32
2001	Tämnaren väst	Special Protection Area (Birds Directive)	32
2004	Biotopskydd 2004:455	Biotopskyddsområde	<1
2004	Biotopskydd 2004:453	Biotopskyddsområde	<1
2004	Biotopskydd 2004:451	Biotopskyddsområde	<1
2004	Biotopskydd 2004:454	Biotopskyddsområde	<1
2004	Biotopskydd 2004:450	Biotopskyddsområde	<1
2004	Biotopskydd 2004:452	Biotopskyddsområde	<1

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Standing freshwater, Water fringe vegetation	65
Artificial/Terrestrial	Arable land	20
Forest	Broadleaved deciduous woodland, Native coniferous woodland, Mixed woodland, Alluvial and very wet forest	15
Grassland	Humid grasslands	minor (<10)

1. IUCN Habitat classification.

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 22/11/2024.