FI075
Pernaja outer archipelago


IBA Justification

The site was identified as internationally important for bird conservation 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 List Season (year/s of estimate) Size IBA criteria
Caspian Tern Hydroprogne caspia LC breeding (1997) 42 pairs B1i, B2, C2, C6
Black Guillemot Cepphus grylle LC breeding (1997) 169–267 pairs B1ii, B2
Razorbill Alca torda LC breeding (1997) 320–590 pairs B1ii, B3, C3

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2010) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2010 moderate medium low
Whole site assessed? State assessed by Accuracy of information
yes population good

State (condition of the trigger species' populations)
Species Actual vs Reference (units) % remaining Result
Caspian Tern Hydroprogne caspia 50 / 50 (pairs) 100 good
Black Guillemot Cepphus grylle 250 / 300 (pairs) 84 moderate
Razorbill Alca torda 600 / 600 (pairs) 100 good

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Invasive and other problematic species and genes happe­ning now some of popul­ation/area (10–49%) slow decline (1–10% over 3 gener­ations) medium
Human intrusions and disturbance happe­ning now some of popul­ation/area (10–49%) no or slight decline (<1% over 3 gener­ations) low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation Planning Action Result
Most of area (50–90%) covered (including the most critical parts for important bird species) No management plan exists, but the management planning process has begun Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity low

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
1953 ASPSKÄRIN LUONNONSUOJELUA Yksityinen luonnonsuojelualue (IV) 4

Habitats

Habitat % of IBA Habitat detail
Marine Coastal/Supratidal 50
Marine Neritic 50

Land use

Land use % of IBA
tourism/recreation -
hunting -


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Pernaja outer archipelago (Finland). Downloaded from https://datazone.birdlife.org/site/factsheet/pernaja-outer-archipelago-iba-finland on 23/12/2024.