UK005
Avon 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 25 individuals C6
Gadwall Mareca strepera LC winter 2001-2006 690 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 high very unfavourable low
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 majority/most of area/population (50-90%) slow but significant deterioration high
Agricultural expansion and intensification wood and pulp plantations (includes afforestation) - small-holder plantations happening now small area/few individuals (<10%) slow but significant deterioration low
Energy production and mining mining and quarrying happening now small area/few individuals (<10%) slow but significant deterioration low
Human intrusions and disturbance recreational activities happening now small area/few individuals (<10%) slow but significant deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - unspecified species happening now some of area/population (10-49%) slow but significant deterioration medium
Invasive and other problematic species and genes problematic native species/diseases - unspecified species happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - abstraction of surface water (agricultural use) happening now majority/most of area/population (50-90%) slow but significant deterioration high
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - soil erosion, sedimentation happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - type unknown/unrecorded happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution domestic & urban waste water - sewage happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Cygnus columbianus Tundra Swan 170 25 individuals 15 very unfavourable
Mareca strepera Gadwall 665 690 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 Unknown Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity low
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)
The New Forest Site of Special Scientific Interest (UK) 28,945 protected area is adjacent to site 0
Stanpit Marsh, Christchurch Local Nature Reserve 55 protected area is adjacent to site 0
River Avon System Site of Special Scientific Interest (UK) 476 protected area overlaps with site 0
River Avon Site of Community Importance (Habitats Directive) 417 protected area overlaps with site 0
New Forest National Park 56,693 protected area is adjacent to site 1,348
Ibsley and Rockford Commons Nature Reserve 542 protected area is adjacent to site 0
Dorset Heaths Site of Community Importance (Habitats Directive) 5,720 protected area is adjacent to site 0
Dorset Heathlands Special Protection Area (Birds Directive) 8,185 protected area is adjacent to site 0
Christchurch Harbour Site of Special Scientific Interest (UK) 352 protected area is adjacent to site 0
Avon Valley ( Bickton To Christchurch ) Site of Special Scientific Interest (UK) 1,405 protected area overlaps with site 1,348
Avon Valley Special Protection Area (Birds Directive) 1,351 is identical to site 1,346
Avon Valley Ramsar Site, Wetland of International Importance 1,385 protected area overlaps with site 1,348

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland, Mixed woodland -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Water fringe vegetation, Fens, transition mires and springs -
Artificial/Terrestrial Highly improved re-seeded landscapes, Arable land -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Avon Valley. Downloaded from http://www.birdlife.org on 28/11/2020.