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Location Sweden, Örebro
Central coordinates 15o 23.75' East  59o 10.59' North
IBA criteria A4i, B1i, B3, C2, C3, C6
Area 2,300 ha
Altitude 22 - 30m
Year of IBA assessment 2000

Sveriges Ornitologiska Förening

Site description Kvismaren is a flat fertile agricultural valley. Extensive marshy areas originally surrounded two lakes, but following drainage in the 1880s the lakes disappeared. They have now been replaced by extensive reedbeds (Phragmites) and Salix thickets surrounded by marshy meadows, low-lying pasture and arable land, and densely wooded areas. The main wetland is enclosed by embankments and canals to protect nearby arable land from flooding. Three areas of open water, covering c.230 ha, have recently been restored as shallow lakes or water-meadows. The IBA contains an important ornithological station.

Key Biodiversity The site is important for breeding species of wetland and wet grassland habitats, as well as for passage wildfowl and waders. Breeding species of global conservation concern that do not meet IBA criteria: Crex crex.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bean Goose Anser fabalis passage  1996  5,000-25,000 individuals  good  A4i, B1i, C3  Least Concern 
Western Marsh-harrier Circus aeruginosus breeding  1996  15-18 breeding pairs  good  C6  Least Concern 
Common Crane Grus grus passage  1996  200-2,500 individuals  good  A4i, B1i, C2  Least Concern 
Common Grasshopper-warbler Locustella naevia breeding  1996  25-50 breeding pairs  good  B3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kvismaren Nature Reserve 738 protected area contained by site 732  
Kvismaren Wetlands of International Importance (Ramsar) 780 protected area contained by site 780  
Sörön Nature Reserve 22 protected area contained by site 23  


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

Land use

Land-use Extent (% of site)
hunting 5%
nature conservation and research 85%
not utilised 10%
agriculture -

Protection status National High International HighIBA overlaps with Nature Reserve (732 ha). 780 ha of IBA covered by Ramsar Site (Kvismaren, 780 ha). IBA overlaps with Special Protection Area (732 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Kvismaren. Downloaded from on 27/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife