Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Northern Pintail Anas acuta | LC | winter (2001–2006) | 615 birds | B1i, C3 |
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 | moderate | low | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | good | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Brent Goose Branta bernicla | 2,423 / 3,010 (birds) | 81 | moderate | ||
| Northern Pintail Anas acuta | 615 / 600 (birds) | 100 | good | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Pollution | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Natural system modifications | likely in short term (<4 years) | few individuals/small area (<10%) | moderate decline (10–30% 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90%) covered by appropriate conservation designation | A management plan exists, but it is out of date or not comprehensive | Some limited conservation initiatives are in place | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1964 | Pagham Harbour | Local Nature Reserve (IV) | 77 |
| 1986 | Pagham Harbour | Site of Special Scientific Interest (UK) (IV) | 100 |
| 2011 | Pagham Harbour | Marine Protected Area (OSPAR) (UA) | 51 |
| 2012 | Pagham Harbour | Nature Reserve (IV) | 49 |
| 2014 | Pagham Harbour | Marine Protected Area (OSPAR) (UA) | 41 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | major (>10) | Mesophile grasslands; Humid grasslands |
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) | |
| Forest | minor (<10) | Broadleaved deciduous woodland |
| Marine Neritic | minor (<10) | |
| Shrubland | minor (<10) | Scrub |
| Land use | % of IBA |
|---|---|
| nature conservation and research | - |
| tourism/recreation | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Pagham Harbour (United Kingdom). Downloaded from
https://datazone.birdlife.org/site/factsheet/pagham-harbour-iba-united-kingdom on 23/12/2024.