Data Zone
The site was identified as important 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 List1 | Season | Year(s) | 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 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1900 | Trehörningsskogen | Naturreservat | 1 |
| 1900 | Exerman-Hersby | Naturreservat | 1 |
| 1900 | Bromseby | Naturreservat | <1 |
| 1900 | Exerman-Hersby | Naturreservat | <1 |
| 1900 | Domarudden | Naturreservat | <1 |
| 1996 | Trehörningsskogen | Special Protection Area (Birds Directive) | 1 |
| 1996 | Biotopskydd 1996:14 | Biotopskyddsområde | <1 |
| 1997 | Trehörningsskogen | Site of Community Importance (Habitats Directive) | 1 |
| 1999 | Biotopskydd 1999:168 | Biotopskyddsområde | <1 |
| 2001 | Biotopskydd 2001:575 | Biotopskyddsområde | <1 |
| 2001 | Biotopskydd 2001:574 | Biotopskyddsområde | <1 |
| 2001 | Tärnholm | Site of Community Importance (Habitats Directive) | <1 |
| 2001 | Mörtsjöskogen | Site of Community Importance (Habitats Directive) | <1 |
| 2001 | Bromseby | Site of Community Importance (Habitats Directive) | <1 |
| 2001 | Blötviken | Site of Community Importance (Habitats Directive) | <1 |
| 2002 | Biotopskydd 2002:546 | Biotopskyddsområde | <1 |
| 2002 | Biotopskydd 2002:423 | Biotopskyddsområde | <1 |
| 2002 | Biotopskydd 2002:422 | Biotopskyddsområde | <1 |
| 2002 | Biotopskydd 2002:371 | Biotopskyddsområde | <1 |
| 2007 | Biotopskydd 2007:518 | Biotopskyddsområde | <1 |
| 2008 | Biotopskydd 2008:352 | Biotopskyddsområde | <1 |
| 2008 | Biotopskydd 2008:342 | Biotopskyddsområde | <1 |
| 2008 | Biotopskydd 2008:458 | Biotopskyddsområde | <1 |
| 2009 | Biotopskydd 2009:138 | Biotopskyddsområde | <1 |
| 2009 | Biotopskydd 2009:139 | Biotopskyddsområde | - |
| 2011 | Lövdalsskogen | Naturreservat | <1 |
| 2011 | Mörtsjöskogen | Naturreservat | <1 |
| 2015 | Biotopskydd 2014:542 | Biotopskyddsområde | <1 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Forest | Native coniferous woodland, Mixed woodland | 70 |
| Wetlands (inland) | Standing freshwater, Raised bogs | 25 |
| Artificial/Terrestrial | Arable land | 5 |
| Land use | % of IBA |
|---|---|
| forestry | 70 |
| tourism/recreation | 15 |
| not utilised | 10 |
| agriculture | 5 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tärnan – Riala (Sweden). Downloaded from
https://datazone.birdlife.org/site/factsheet/tärnan-–-riala-iba-sweden on 23/11/2024.