Current view: Text account
Site description (2000 baseline):
Site location and context
The main area of interest can be divided into four island groups: Stora Nassa˜c.400 closely spaced rocky islets with little or no vegetation. The largest island has maritime
Betula forest whilst others support
Juniperus. Wet grasslands are also present. Lilla Nassa˜smaller area than Stora Nassa but with islands more spread out and with very little vegetation. Gillöga˜flat islands in shallow waters with abundant cover and submerged offshore reefs. Svenska Högarna˜a flat island with
Juniperus, and heather
Calluna. The archipelago is largely uninhabited but during the summer is a popular leisure (boating) area.
This is a very important breeding area for seaducks, waders, gulls and seabirds.
Pressure/threats to key biodiversity
American mink
Mustela vison are a threat to breeding birds. Recreational activities may disturb breeding birds.
National Partial
International HighIBA overlaps with Nature Reserve (3,400 ha); large areas are also designated as Bird Sanctuaries. 9,100 ha of IBA covered by Ramsar Site (Stockholm, outer archipelago, 15,000 ha). IBA overlaps with Special Protection Area.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Archipelago of Stockholm (Sweden). Downloaded from
https://datazone.birdlife.org/site/factsheet/archipelago-of-stockholm-iba-sweden on 22/11/2024.
