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Year of most recent IBA criteria assessment: 2014

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
Greylag Goose Anser anser	LC	passage	2007-2013	1,460-6,200 individuals	B1i
Pink-footed Goose Anser brachyrhynchus	LC	passage	2010-2013	620-2,500 individuals	B1i
Velvet Scoter Melanitta fusca	VU	passage	2005-2014	50-130 individuals	A1

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

Threats to the site (pressure)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	annual & perennial non-timber crops - shifting agriculture	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Agricultural expansion and intensification	livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Biological resource use	hunting & collecting terrestrial animals - intentional use (species being assessed is the target)	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Climate change and severe weather	habitat shifting and alteration	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Climate change and severe weather	storms and floods	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Human intrusions and disturbance	recreational activities	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - named species	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Pollution	agricultural & forestry effluents - nutrient loads	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Pollution	garbage & solid waste	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Residential and commercial development	tourism and recreation areas	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Condition of the site (state), by species
Scientific name	Common name	Reference population	Actual population	Units	% of population remaining	Result
Anser anser	Greylag Goose	6200	6200	individuals	100	favourable
Anser brachyrhynchus	Pink-footed Goose	2500	2500	individuals	100	favourable

Conservation actions taken at the site (response)
Protected-area designation	Management planning	Other conservation action	Result
Most of site (50-90%) covered (including the most critical parts for important bird species)	Unknown	The conservation measures needed for the site are being comprehensively and effectively implemented	low

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Trondheimfjord wetland system	Ramsar Site, Wetland of International Importance	670	protected area overlaps with site	0
Leinøra	Nature Reserve	5	protected area contained by site	5
Gaulosen	Nature Reserve	64	protected area contained by site	60
Gaulosen	Naturreservat	28	protected area contained by site	0
Gaulosen	Landscape Protected Area	179	protected area contained by site	179
Gaulosen	Marint verneområde (naturmangfoldloven)	0	protected area overlaps with site	0

IUCN Habitat	Habitat detail	Extent (% of site)
Marine Intertidal		-
Marine Coastal/Supratidal		-
Marine Neritic		-

For further information about the IUCN habitat classification, please click here.

Land-use	Extent (% of site)
nature conservation and research	-
not utilised	-

For further information about the land-use classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Gaulosen. Downloaded from http://datazone.birdlife.org/site/factsheet/3165 on 08/06/2023.