UK052
Pagham Harbour


IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Northern Pintail Anas acuta LC winter 2001-2006 615 individuals B1i, C3

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2007 low near favourable medium
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Invasive and other problematic species and genes problematic native species/diseases - unspecified species happening now small area/few individuals (<10%) slow but significant deterioration low
Natural system modifications dams & water management/use - abstraction of ground water (agricultural use) likely in short term (within 4 years) small area/few individuals (<10%) moderate to rapid deterioration low
Pollution agricultural & forestry effluents - soil erosion, sedimentation happening now small area/few individuals (<10%) slow but significant deterioration low
Pollution domestic & urban waste water - sewage happening now small area/few individuals (<10%) slow but significant deterioration low

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Branta bernicla Brent Goose 3010 2423 individuals 81 near favourable
Anas acuta Northern Pintail 600 615 individuals 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation 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90%) covered by appropriate conservation designation A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place medium
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Pagham Harbour Nature Reserve 340 protected area overlaps with site 0
Pagham Harbour Local Nature Reserve 599 protected area overlaps with site 0
Pagham Harbour Ramsar Site, Wetland of International Importance 637 protected area overlaps with site 627
Pagham Harbour Marine Conservation Zone 280 protected area overlaps with site 0
Pagham Harbour Marine Protected Area (OSPAR) 0 protected area overlaps with site 0
Pagham Harbour Site of Special Scientific Interest (UK) 629 protected area overlaps with site 627
Pagham Harbour Marine Protected Area (OSPAR) 200 protected area overlaps with site 0
Pagham Harbour Special Protection Area (Birds Directive) 629 is identical to site 627
Medmerry Nature Reserve 491 protected area is adjacent to site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland -
Shrubland Scrub -
Grassland -
Wetlands (inland) Tidal rivers and enclosed tidal waters, Mud flats and sand flats, Salt marshes, Shingle or stony beaches, Coastal lagoons, Water fringe vegetation -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
tourism/recreation -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Pagham Harbour. Downloaded from http://www.birdlife.org on 05/08/2020.