Data Zone
The site was identified as internationally important for bird conservation in 2009 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 |
|---|---|---|---|---|
| Gadwall Mareca strepera | LC | breeding (2004–2007) | 14–25 pairs | B2 |
| Horned Grebe Podiceps auritus | VU | breeding (2005–2007) | 16–18 pairs | B2, C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2013) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2013 | moderate | high | very 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 | ||
| Gadwall Mareca strepera | 327 / 160 (birds) | 100 | good | ||
| Horned Grebe Podiceps auritus | 8 / 10 (pairs) | 80 | moderate | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
| Transportation and service corridors | likely in short term (<4 years) | some of population/area (10–49%) | rapid decline (>30% over 3 generations) | high |
| Residential and commercial development | likely in short term (<4 years) | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | medium |
| Human intrusions and disturbance | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of area covered (<10%) | No management planning has taken place | Some limited conservation initiatives are in place | very low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | 70 | |
| Forest | 20 | Alluvial and very wet forest; Mixed woodland |
| Artificial/Terrestrial | 10 | Ruderal land |
| Land use | % of IBA |
|---|---|
| tourism/recreation | major (>10) |
| agriculture | minor (<10) |
| urban/industrial/transport | minor (<10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Suomenoja (Finland). Downloaded from
https://datazone.birdlife.org/site/factsheet/suomenoja-iba-finland on 25/12/2024.