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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
Long-tailed Duck Clangula hyemalis	VU	winter (2008–2013)	1,000–4,000 birds	A1
Goosander Mergus merganser	LC	non-breeding (2010–2013)	21,000 birds	A4i, B1i
Red-breasted Merganser Mergus serrator	LC	non-breeding (2010–2014)	1,000–2,000 birds	B1i
A4iii Species group - waterbirds	n/a	non-breeding (2010–2014)	22,000–23,000 birds	A4iii

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2016) is shown below.

State (condition of the trigger species' populations)
Species	Actual vs Reference (units)	% remaining	Result
Long-tailed Duck Clangula hyemalis	6,000 / 4,000 (birds)	100	good
Common Eider Somateria mollissima	5,000 / 1,000 (birds)	100	good
Goosander Mergus merganser	25,000 / 21,000 (birds)	100	good
Red-breasted Merganser Mergus serrator	4,000 / 2,000 (birds)	100	good

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Grassland	good (>90%)	good (>90%)	good
Marine Neritic	good (>90%)	good (>90%)	good
Marine Intertidal	good (>90%)	good (>90%)	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	likely in short term (<4 years)	whole of popul­ation/area (>90%)	rapid decline (>30% over 3 gener­ations)	very high
Invasive and other problematic species and genes	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Biological resource use	happe­ning now	some of popul­ation/area (10–49%)	moderate decline (10–30% over 3 gener­ations)	high
Human intrusions and disturbance	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)	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Energy production and mining	likely in long term (>4 years)	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Pollution	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%)	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
Whole area (>90%) covered by appropriate conservation designation	A compre­hensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	The conservation measures needed for the site are being compre­hensively and effectively implemented	high

Year	Protected Area	Designation (management category)	% coverage of IBA
1991	Tanamunningen	Naturreservat (Ia)	91

Habitat	% of IBA	Habitat detail
Grassland	5	Alpine, subalpine and boreal grassland
Marine Intertidal	major (>10)
Marine Neritic	major (>10)
Marine Coastal/Supratidal	-

Land use	% of IBA
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tanamunningen (Norway). Downloaded from https://datazone.birdlife.org/site/factsheet/tanamunningen-iba-norway on 22/12/2024.