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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Whooper Swan Cygnus cygnus	LC	winter	2011-2013	400-1,100 individuals	B1i, B3
Long-tailed Duck Clangula hyemalis	VU	winter	2006-2014	300-700 individuals	A1
Horned Grebe Podiceps auritus	VU	winter	2004-2014	100-250 individuals	B1i, B2
Common Loon Gavia immer	LC	winter	2004-2014	50-200 individuals	B1i
Northern Lapwing Vanellus vanellus	NT	breeding	2011-2013	2,000-2,500 breeding pairs	B2
Eurasian Curlew Numenius arquata	NT	breeding	1997-2011	150-400 breeding pairs	A1
Black-tailed Godwit Limosa limosa	NT	breeding	2010-2013	10-20 breeding pairs	A1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2014) may differ.

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.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	happening now	whole area/population (>90%)	slow but significant deterioration	high
Residential and commercial development	likely in long term (beyond 4 years)	whole area/population (>90%)	slow but significant deterioration	medium
Pollution	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Agricultural expansion and intensification	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Invasive and other problematic species and genes	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Biological resource use	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Human intrusions and disturbance	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation	% overlap with IBA
-	Lonavatn	Nature Reserve	<1
-	Harvalandsvatn	Nature Reserve	1
-	Alvevatn	Nature Reserve	<1
-	Smokkevatn	Nature Reserve	<1
-	Søylandsvatn	Nature Reserve	<1
-	Øksnevadtjern	Nature Reserve	<1
-	Orrevatn	Nature Reserve	2
1974	Grudevatn	Dyrefredningsområde	<1
1974	Grudevatn	Naturreservat	<1
1974	Grudevatnet	Nature Reserve	<1
1978	Søndre Frøyland	Landskapsvernområde	<1
1978	Søndre Frøyland	Dyrefredningsområde	<1
1984	Haga	Naturreservat	<1
1984	Mossige	Naturreservat	<1
1985	Jaeren wetland system	Ramsar Site, Wetland of International Importance	1
1986	Reime	Plantefredningsområde	<1
1986	Vigre	Naturreservat	<1
1996	Orrevatnet	Naturreservat	2
1996	Bjårvatnet	Naturreservat	<1
1996	Søylandsvatnet	Naturreservat	<1
1996	Orrevatnet	Dyrelivsfredning	<1
1996	Hagavågen	Naturreservat	<1
1996	Lonavatnet	Naturreservat	<1
1996	Harvalandsvatnet	Naturreservat	<1
1996	Smokkevatnet	Naturreservat	<1
1996	Øksnevadtjønn	Naturreservat	<1
1996	Strandnesvågen	Naturreservat	<1
1996	Alvevatnet	Naturreservat	<1
1996	Heigremyra	Naturreservat	<1
1996	Linemyra	Naturreservat	<1
1996	Grannesbukta	Naturreservat	<1
2003	Jærstrendene	Landskapsvernområde	3
2003	Jærstrendene	Dyrefredningsområde	3
2003	Jærstrendene	Plantefredningsområde	1
2003	Jærstrendene	Naturminne	<1
2016	Jærkysten	Marint verneområde (naturmangfoldloven)	29

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial		-
Marine Coastal/Supratidal		-
Marine Intertidal		-
Marine Neritic		-

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	-
fisheries/aquaculture	-
nature conservation and research	-
urban/industrial/transport	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Jæren (Norway). Downloaded from https://datazone.birdlife.org/site/factsheet/jæren-iba-norway on 23/11/2024.