UK003
Arun Valley


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
Tundra Swan Cygnus columbianus LC winter 2001-2006 44 individuals C6

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 very unfavourable 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
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) slow but significant deterioration low
Natural system modifications dams & water management/use - abstraction of surface water (unknown use) 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
Cygnus columbianus Tundra Swan 71 44 individuals 62 unfavourable
Calidris pugnax Ruff 99 27 individuals 28 very unfavourable
Species group - waterbirds A4iii 37776 13337 individuals 36 very unfavourable

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90%) covered by appropriate conservation designation A management plan exists but it is out of date or not comprehensive Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Waltham Brooks Site of Special Scientific Interest (UK) 47 protected area overlaps with site 0
Sussex Downs Area of Outstanding Natural Beauty 98,300 protected area overlaps with site 1,110
South Downs National Park 165,351 protected area contains site 1,413
Pulborough Brooks RSPB Reserve 257 protected area overlaps with site 175
Pulborough Brooks Nature Reserve 257 protected area overlaps with site 0
Pulborough Brooks Site of Special Scientific Interest (UK) 160 protected area overlaps with site 159
Arundel Park Site of Special Scientific Interest (UK) 134 protected area overlaps with site 0
Arun Valley Special Protection Area (Birds Directive) 530 protected area contained by site 529
Arun Valley Ramsar Site, Wetland of International Importance 529 protected area overlaps with site 529
Arun Valley Site of Community Importance (Habitats Directive) 487 protected area contained by site 0
Arun Banks Site of Special Scientific Interest (UK) 26 protected area overlaps with site 0
Amberley Wildbrooks Nature Reserve 213 protected area overlaps with site 0
Amberley Wildbrooks RSPB Reserve 213 protected area overlaps with site 196
Amberley Wild Brooks Site of Special Scientific Interest (UK) 328 protected area contained by site 323

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland, Mixed woodland -
Shrubland Scrub -
Grassland Humid grasslands -
Wetlands (inland) Rivers and streams, Fens, transition mires and springs -
Artificial/Terrestrial Arable land -
For further information about the habitat classification please click here.

Land use

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


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Arun Valley. Downloaded from http://www.birdlife.org on 22/01/2022.