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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Hazel Grouse Tetrastes bonasia	LC	resident	1996	10-30 breeding pairs	C6
Whooper Swan Cygnus cygnus	LC	passage	1996	100-200 individuals	C2
Bean Goose Anser fabalis	LC	passage	1996	300-800 individuals	B1i, C3
Osprey Pandion haliaetus	LC	breeding	1996	3-10 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.

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%)	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Pollution	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Agricultural expansion and intensification	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Biological resource use	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	Not assessed	Not assessed	negligible

Year	Protected Area	Designation	% overlap with IBA
1974	Lake Persöfjärden	Ramsar Site, Wetland of International Importance	83
2001	Källgården	Site of Community Importance (Habitats Directive)	<1
2004	Persöfjärden	Special Protection Area (Birds Directive)	40

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Fens, transition mires and springs, Standing freshwater, Water fringe vegetation	50
Artificial/Terrestrial	Highly improved re-seeded landscapes, Arable land, Ruderal land	30
Forest	Mixed woodland	20

1. IUCN Habitat classification.

Land use	% of IBA
hunting	100
tourism/recreation	50
agriculture	20
forestry	10

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Persöfjärden (Sweden). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-persöfjärden-iba-sweden on 22/11/2024.