Mousa (United Kingdom) - BirdLife IBA factsheet

UK208

Mousa

Current view: Data table and detailed info

IBA Justification

The site was identified as important in 2007 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 Storm-petrel Hydrobates pelagicus	LC	breeding	1996	6,800 breeding pairs	A4ii, B1ii, B2, C2, C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.

IBA conservation assessment
Year of assessment	State	Pressure	Response
2007	not assessed	very high	low
Whole site assessed?	State assessed by	Accuracy of information
yes	unset	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Climate change and severe weather	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Unknown	low

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
-	Mousa	RSPB Reserve	100
1961	Mousa	Site of Special Scientific Interest (UK)	100
1996	Mousa	Site of Community Importance (Habitats Directive)	15
1998	Mousa	Special Protection Area (Birds Directive)	100
2001	Mousa	Nature Reserve	86
2005	Mousa	Marine Protected Area (OSPAR)	25
2014	Mousa to Boddam	Marine Protected Area (OSPAR)	15
2014	Mousa to Boddam	Nature Conservation Marine Protected Area	14

Habitats

Habitat¹	Habitat detail	% of IBA
Grassland	Mesophile grasslands, Humid grasslands	major (>10)
Marine Coastal/Supratidal		minor (<10)
Marine Intertidal		minor (<10)
Marine Neritic		minor (<10)
Shrubland	Heathland	minor (<10)

1. IUCN Habitat classification.

Land use

Land use	% of IBA
agriculture	100

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mousa (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/mousa-iba-united-kingdom on 23/11/2024.