Data Zone
The site was identified as internationally important for bird conservation in 2014 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 |
|---|---|---|---|---|
| Whooper Swan Cygnus cygnus | LC | winter (2011–2013) | 400–1,100 birds | B1i, B3 |
| Long-tailed Duck Clangula hyemalis | VU | winter (2006–2014) | 300–700 birds | A1 |
| Horned Grebe Podiceps auritus | VU | winter (2004–2014) | 100–250 birds | B1i, B2 |
| Common Loon Gavia immer | LC | winter (2004–2014) | 50–200 birds | B1i |
| Northern Lapwing Vanellus vanellus | NT | breeding (2011–2013) | 2,000–2,500 pairs | B2 |
| Eurasian Curlew Numenius arquata | NT | breeding (1997–2011) | 150–400 pairs | A1 |
| Black-tailed Godwit Limosa limosa | NT | breeding (2010–2013) | 10–20 pairs | A1 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2017) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2017 | not assessed | high | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | good | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Transportation and service corridors | happening now | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | high |
| Pollution | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Residential and commercial development | likely in long term (>4 years) | whole of population/area (>90%) | 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 |
| Agricultural expansion and intensification | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Invasive and other problematic species and genes | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Biological resource use | happening now | few individuals/small area (<10%) | 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 |
| Not assessed | Not assessed | Not assessed | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Orrevatn | Nature Reserve (-) | 2 |
| - | Øksnevadtjern | Nature Reserve (-) | <1 |
| - | Smokkevatn | Nature Reserve (-) | <1 |
| - | Harvalandsvatn | Nature Reserve (-) | 1 |
| - | Søylandsvatn | Nature Reserve (-) | <1 |
| - | Alvevatn | Nature Reserve (-) | <1 |
| - | Lonavatn | Nature Reserve (-) | <1 |
| 1974 | Grudevatn | Dyrefredningsområde (IV) | <1 |
| 1974 | Grudevatn | Naturreservat (Ia) | <1 |
| 1974 | Grudevatnet | Nature Reserve (-) | <1 |
| 1978 | Søndre Frøyland | Landskapsvernområde (IV) | <1 |
| 1978 | Søndre Frøyland | Dyrefredningsområde (IV) | <1 |
| 1984 | Haga | Naturreservat (Ia) | <1 |
| 1984 | Mossige | Naturreservat (Ia) | <1 |
| 1986 | Vigre | Naturreservat (Ia) | <1 |
| 1996 | Orrevatnet | Naturreservat (Ia) | 2 |
| 1996 | Bjårvatnet | Naturreservat (Ia) | <1 |
| 1996 | Søylandsvatnet | Naturreservat (Ia) | <1 |
| 1996 | Hagavågen | Naturreservat (Ia) | <1 |
| 1996 | Lonavatnet | Naturreservat (Ia) | <1 |
| 1996 | Harvalandsvatnet | Naturreservat (Ia) | <1 |
| 1996 | Smokkevatnet | Naturreservat (Ia) | <1 |
| 1996 | Øksnevadtjønn | Naturreservat (Ia) | <1 |
| 1996 | Strandnesvågen | Naturreservat (Ia) | <1 |
| 1996 | Alvevatnet | Naturreservat (Ia) | <1 |
| 1996 | Linemyra | Naturreservat (Ia) | <1 |
| 1996 | Heigremyra | Naturreservat (Ia) | <1 |
| 1996 | Grannesbukta | Naturreservat (Ia) | <1 |
| 2003 | Jærstrendene | Landskapsvernområde (V) | 3 |
| 2003 | Jærstrendene | Dyrefredningsområde (IV) | 3 |
| 2003 | Jærstrendene | Plantefredningsområde (IV) | 1 |
| 2003 | Jærstrendene | Naturminne (III) | <1 |
| 2016 | Jærkysten | Marint verneområde (naturmangfoldloven) (Ia) | 29 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Artificial/Terrestrial | - | |
| Marine Coastal/Supratidal | - | |
| Marine Intertidal | - | |
| Marine Neritic | - |
| Land use | % of IBA |
|---|---|
| agriculture | - |
| fisheries/aquaculture | - |
| nature conservation and research | - |
| urban/industrial/transport | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Jæren (Norway). Downloaded from
https://datazone.birdlife.org/site/factsheet/jæren-iba-norway on 23/12/2024.