UK078
Wealden Heaths


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
European Nightjar Caprimulgus europaeus LC breeding 2004 197 breeding pairs B2, C6
Woodlark Lullula arborea LC resident 2006 123 breeding pairs C6
Dartford Warbler Curruca undata NT resident 2006 334 breeding pairs 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 medium 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
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Agricultural expansion and intensification wood and pulp plantations (includes afforestation) - agro-industry plantations 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 small area/few individuals (<10%) slow but significant deterioration low
Natural system modifications dams & water management/use - small dams likely in short term (within 4 years) small area/few individuals (<10%) moderate to rapid deterioration low
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development housing and urban areas likely in short term (within 4 years) some of area/population (10-49%) moderate to rapid deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Caprimulgus europaeus European Nightjar 140 197 males 100 favourable
Lullula arborea Woodlark 44 123 males 100 favourable
Curruca undata Dartford Warbler 160 334 males 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) 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)
Woolmer Forest Site of Community Importance (Habitats Directive) 670 protected area contained by site 0
Woolmer Forest Site of Special Scientific Interest (UK) 1,299 protected area overlaps with site 1,294
Woolbeding Countryside Nature Reserve 266 protected area overlaps with site 0
Woolbeding and Pound Commons Site of Special Scientific Interest (UK) 172 protected area overlaps with site 0
Witley and Milford Commons Nature Reserve 161 protected area overlaps with site 0
Wealden Heaths Phase 2 Special Protection Area (Birds Directive) 2,056 protected area contained by site 1,949
Thursley; Hankley and Frensham Commons (Wealden Heaths Phase 1) Special Protection Area (Birds Directive) 1,880 protected area contained by site 1,872
Thursley; Ash, Pirbright And Chobham Site of Community Importance (Habitats Directive) 5,154 protected area overlaps with site 0
Thursley, Hankley & Frensham Commons Site of Special Scientific Interest (UK) 1,879 protected area overlaps with site 1,870
Thursley & Ockley Bog Ramsar Site, Wetland of International Importance 265 protected area overlaps with site 265
Thursley National Nature Reserve 323 protected area overlaps with site 318
The Flashes Local Nature Reserve 115 protected area overlaps with site 0
Sussex Downs Area of Outstanding Natural Beauty 98,300 protected area overlaps with site 1,268
Surrey Hills Area of Outstanding Natural Beauty 42,266 protected area overlaps with site 2,147
South Downs National Park 165,351 protected area overlaps with site 1,354
Rodborough Common Local Nature Reserve 62 protected area is adjacent to site 0
Ludshott Commons Nature Reserve 405 protected area overlaps with site 0
Lavington Common Site of Special Scientific Interest (UK) 31 protected area overlaps with site 0
Lavington Nature Reserve 66 protected area overlaps with site 0
Iping Common Site of Special Scientific Interest (UK) 125 protected area overlaps with site 0
Iping Common Local Nature Reserve 118 protected area overlaps with site 0
Hindhead Commons Nature Reserve 574 protected area overlaps with site 0
Frensham Common Nature Reserve 382 protected area overlaps with site 0
Devil's Punch Bowl Site of Special Scientific Interest (UK) 282 protected area overlaps with site 280
Chapel Common Site of Special Scientific Interest (UK) 101 protected area overlaps with site 0
Broxhead Common Local Nature Reserve 42 protected area overlaps with site 0
Broxhead and Kingsley Commons Site of Special Scientific Interest (UK) 105 protected area overlaps with site 0
Bramshott and Ludshott Commons Site of Special Scientific Interest (UK) 375 protected area overlaps with site 375
Ambersham Common Site of Special Scientific Interest (UK) 142 protected area overlaps with site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland, Mixed woodland -
Shrubland Scrub, Heathland -
Grassland Dry siliceous grassland -
Wetlands (inland) Standing freshwater, Fens, transition mires and springs -
For further information about the habitat classification please click here.

Land use

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


Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Wealden Heaths. Downloaded from http://www.birdlife.org on 01/02/2023.