Key Biodiversity Areas

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Puurijärvi-Isosuo wetlands and fields (1294)
Finland, Europe

Site overview


KBA status: confirmed
Year of last assessment: 2025
National site name: Puurijärven-Isosuon kosteikot ja pellot
Central coordinates: Latitude: 61.2333, Longitude: 22.5667
System: terrestrial, freshwater
Elevation (m): 45 to 45
Area of KBA (km2): 65.31632
Protected area coverage (%): 51.73
KBA classification: Regional
Legacy site: Yes

Site details


Site description: A complex of habitats, comprising the large, shallow and eutrophic Puurij&auml;rvi lake, open fields (220&#160;ha) and several adjacent mires along the Kokem&auml;ki river. The lake is mainly bordered by forests and in summer becomes almost totally overgrown with vegetation. Isosuo and other mires are large raised bogs with extensive open areas of pools in the centre, and sparse swamp-forests or mixtures of swamps and forests at the edges.</P>
Rationale for qualifying as KBA: An important staging area for <I>Haliaeetus albicilla</I> and <I>Cygnus cygnus</I>. <I>Podiceps grisegena</I> (20 pairs), <I>Porzana porzana</I> (15 pairs) and <I>Grus grus</I> (10 pairs) also breed. Species of global conservation concern that do not meet IBA criteria: <I>Crex crex</I> (max. 4 pairs, breeding).</P>
Manageability of the site: Site identified based on BirdLife International's Important Bird and Biodiversity Areas, under which manageability is strongly recommended but not explicitly documented

Habitats


IUCN HabitatCoverage %Habitat detail
Wetlands(Inland)91
Artificial - Terrestrial7

Threats


Summary of threats to biodiversity at KBA: Puurij&auml;rvi lake has a birdwatching tower. Restoration plans include the raising of water-levels.</P>
Threat level 1Threat level 2Threat level 3Timing
Natural system modificationsDams & water management/useDams (size unknown)Ongoing

Additional information


Contributors: Site identified based on Important Bird and Biodiversity Areas by the BirdLife International Partnership