UK045
Nene Washes


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 738 individuals A4i, B1i, B2, C2, C6
Northern Pintail Anas acuta LC winter 2001-2006 1,423 individuals B1i, C3
Corncrake Crex crex LC breeding 2007 4 males C6
Spotted Crake Porzana porzana LC breeding 2006 3 males C6
Black-tailed Godwit Limosa limosa NT breeding 2007 41 males B2
Ruff Calidris pugnax LC winter 2001-2006 90 individuals C6
A4iii Species group - waterbirds n/a winter 2001-2006 29,008 individuals A4iii, C4

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 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
Energy production and mining renewable energy likely in short term (within 4 years) small area/few individuals (<10%) moderate to rapid 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%) slow but significant deterioration low
Pollution agricultural & forestry effluents - type unknown/unrecorded happening now majority/most of area/population (50-90%) slow but significant deterioration high
Pollution domestic & urban waste water - type unknown/unrecorded happening now majority/most of area/population (50-90%) slow but significant deterioration high
Residential and commercial development housing and urban areas likely in short term (within 4 years) small area/few individuals (<10%) moderate to rapid deterioration low

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Cygnus columbianus Tundra Swan 1640 738 individuals 45 unfavourable
Anas acuta Northern Pintail 1210 1423 individuals 100 favourable
Porzana porzana Spotted Crake 2 3 males 100 favourable
Calidris pugnax Ruff 95 90 individuals 95 favourable
Species group - waterbirds A4iii 22594 29008 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 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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Nene Washes (Whittlesey) Site of Special Scientific Interest (UK) 1,523 protected area overlaps with site 1,505
Nene Washes Ramsar Site, Wetland of International Importance 1,517 protected area overlaps with site 1,505
Nene Washes Site of Community Importance (Habitats Directive) 83 protected area overlaps with site 0
Nene Washes RSPB Reserve 2,470 protected area overlaps with site 1,252
Nene Washes Nature Reserve 1,124 protected area contained by site 0
Nene Washes Special Protection Area (Birds Directive) 1,520 is identical to site 1,505

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Grassland Humid grasslands -
Wetlands (inland) Tidal rivers and enclosed tidal waters, Standing freshwater, Water fringe vegetation -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
hunting -
nature conservation and research -
water management -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Nene Washes. Downloaded from http://www.birdlife.org on 15/04/2021.