Data Zone
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 IBA criteria.
Populations meeting IBA criteria ('key species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| European Nightjar Caprimulgus europaeus | LC | breeding (1990–1997) | 40–70 breeding pairs | B2, C6 |
| Arctic Loon Gavia arctica | LC | breeding (1990–1997) | 44–52 breeding pairs | B2, C6 |
| Eurasian Eagle-owl Bubo bubo | LC | breeding (1990–1997) | 1–3 breeding pairs | B2, C6 |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1900 | Trehörningsskogen | Naturreservat (Ia) | 1 |
| 1900 | Exerman-Hersby | Naturreservat (Ia) | 1 |
| 1900 | Bromseby | Naturreservat (Ia) | <1 |
| 1900 | Exerman-Hersby | Naturreservat (Ia) | <1 |
| 1999 | Biotopskydd 1999:168 | Biotopskyddsområde (Ia) | <1 |
| 2002 | Biotopskydd 2002:546 | Biotopskyddsområde (Ia) | <1 |
| 2007 | Biotopskydd 2007:518 | Biotopskyddsområde (Ia) | <1 |
| 2008 | Biotopskydd 2008:352 | Biotopskyddsområde (Ia) | <1 |
| 2008 | Biotopskydd 2008:342 | Biotopskyddsområde (Ia) | <1 |
| 2011 | Lövdalsskogen | Naturreservat (Ia) | <1 |
| 2011 | Mörtsjöskogen | Naturreservat (Ia) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | 70 | Native coniferous woodland; Mixed woodland |
| Wetlands (inland) | 25 | Standing freshwater; Raised bogs |
| Artificial/Terrestrial | 5 | Arable land |
| Land use | % of IBA |
|---|---|
| forestry | 70 |
| tourism/recreation | 15 |
| not utilised | 10 |
| agriculture | 5 |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Tärnan – Riala (Sweden). Downloaded from
https://datazone.birdlife.org/site/factsheet/tärnan-–-riala-iba-sweden on 06/01/2025.