email a friend
printable version
Location Finland, Länsi-Suomen lääni
Central coordinates 22o 10.00' East  60o 25.00' North
IBA criteria B3, C7
Area 904 ha
Year of IBA assessment 2000


Site description A large, diverse, sparsely populated island closely connected to the city of Turku. Ruissalo is remarkable for both its natural and cultural history. The area supports about half of the natural Quercus forest in the country. Between and around the forests are numerous patches of farmland with narrow belts of reedbeds along the shoreline. The site also encompasses some small, barren islands lying off the main island.

Key Biodiversity An important breeding area for forest avifauna, especially for species of deciduous forests, such as Columba oenas. The site is also important for Strix aluco (10-50 pairs), Picus canus (10-50 pairs) and Dendrocopos minor (10-50 pairs), although populations of these three species do not meet the IBA criteria at this site.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Stock Dove Columba oenas breeding  1992  101-500 breeding pairs  medium  B3  Least Concern 

IBA Monitoring

2010 low favourable low
Good - based on reliable and complete / representative data

Invasive & other problematic species, genes & diseases problematic native species/diseases - named species happening now majority/most of area/population (50-90%) no or imperceptible deterioration low
Pollution air-borne pollutants - type unknown/unrecorded happening now small area/few individuals (<10%) no or imperceptible deterioration low

Columba oenas Stock Dove 100 100 breeding pairs 100 favourable

Most of site (50-90%) covered (including the most critical parts for important bird species)  A management plan exists but it is out of date or not comprehensive  Some limited conservation initiatives are in place  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ruissalon Tammimetsä (luonnonsuojelualue) Private Nature Reserve 54 protected area overlaps with site 87  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Mixed woodland; Native coniferous woodland  68%
Grassland Alpine, subalpine and boreal grassland  12%
Artificial - terrestrial Arable land  20%

Land use

Land-use Extent (% of site)
agriculture 20%
nature conservation and research 50%
unknown 30%

Protection status National Low International Partial87 ha of IBA covered by Protected Area on Private Land (Ruissalo, 56 ha). 798 ha of IBA covered by Special Protection Area (Ruissalon lehdot).

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

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

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