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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 ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Bean Goose Anser fabalis	LC	passage (1996)	5,000–25,000 birds	A4i, B1i, C3
Common Crane Grus grus	LC	passage (1996)	200–2,500 birds	A4i, B1i, C2
Western Marsh-harrier Circus aeruginosus	LC	breeding (1996)	15–18 pairs	C6
Common Grasshopper-warbler Locustella naevia	LC	breeding (1996)	25–50 pairs	B3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2018) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Wetlands (inland)	good (>90%)	good (>90%)	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happe­ning now	some of popul­ation/area (10–49%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Most of area (50–90%) covered (including the most critical parts for important bird species)	A compre­hensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	The conservation measures needed for the site are being compre­hensively and effectively implemented	high

Year	Protected Area	Designation (management category)	% coverage of IBA
1900	Kvismaren	Naturreservat (IV)	32
1900	Sörön	Naturreservat (IV)	1

Habitat	% of IBA	Habitat detail
Wetlands (inland)	70	Standing freshwater; Water fringe vegetation
Grassland	20	Humid grasslands
Forest	10	Alluvial and very wet forest
Shrubland	10	Scrub

Land use	% of IBA
nature conservation and research	85
not utilised	10
hunting	5
agriculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Kvismaren (Sweden). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-kvismaren-iba-sweden on 28/12/2024.