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Oosterschelde This is an IBA in danger! 


IBA Criteria

Year of most recent IBA criteria assessment: 2016

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Brent Goose Branta bernicla LC non-breeding 2011-2015 13,849-17,952 individuals A4i, B1i, C3
Barnacle Goose Branta leucopsis LC non-breeding 2011-2015 20,618-31,774 individuals A4i, B1i, C2
Red-breasted Merganser Mergus serrator LC non-breeding 2011-2015 1,133-1,252 individuals B1i, C3
Red-breasted Merganser Mergus serrator LC winter 2011-2015 603 individuals B2
Common Shelduck Tadorna tadorna LC non-breeding 2011-2015 3,890-4,801 individuals B1i, C3
Northern Shoveler Spatula clypeata LC non-breeding 2011-2015 1,371-1,809 individuals B1i, C3
Eurasian Wigeon Mareca penelope LC non-breeding 2011-2015 28,795-46,270 individuals B1i, C3
Northern Pintail Anas acuta LC non-breeding 2011-2015 1,196-1,927 individuals B1i, C3
Common Teal Anas crecca LC non-breeding 2011-2015 5,533-10,384 individuals B1i, C3
Horned Grebe Podiceps auritus VU non-breeding 2011-2015 73-92 individuals A1, C1, C6
Horned Grebe Podiceps auritus VU winter 2011-2015 64 individuals B2
Eurasian Spoonbill Platalea leucorodia LC non-breeding 2011-2015 487-638 individuals B1i, C2, C6
Little Egret Egretta garzetta LC non-breeding 2011-2015 85-118 individuals C6
Eurasian Oystercatcher Haematopus ostralegus NT non-breeding 2011-2015 36,716-41,715 individuals A4i, B1i, C3
Eurasian Oystercatcher Haematopus ostralegus NT winter 2011-2015 27,558 individuals B2
Pied Avocet Recurvirostra avosetta LC breeding 2011-2015 652-764 breeding pairs B1i, C2, C6
Pied Avocet Recurvirostra avosetta LC non-breeding 2011-2015 1,156-1,380 individuals B1i, C2, C6
Grey Plover Pluvialis squatarola LC non-breeding 2011-2015 8,372-9,204 individuals B1i, C3
Eurasian Golden Plover Pluvialis apricaria LC non-breeding 2011-2015 8,910-11,797 individuals B3, C6
Eurasian Golden Plover Pluvialis apricaria LC winter 2011-2015 3,698 individuals B3
Common Ringed Plover Charadrius hiaticula LC breeding 2011-2015 44-52 breeding pairs B3
Common Ringed Plover Charadrius hiaticula LC winter 2011-2015 53 individuals B3
Kentish Plover Charadrius alexandrinus LC breeding 2011-2015 43-47 breeding pairs C6
Kentish Plover Charadrius alexandrinus LC non-breeding 2011-2015 108-158 individuals C6
Northern Lapwing Vanellus vanellus NT winter 2011-2015 7,002 individuals B2
Eurasian Curlew Numenius arquata NT non-breeding 2011-2015 21,319-24,393 individuals A4i, B1i, C3
Eurasian Curlew Numenius arquata NT winter 2011-2015 13,737 individuals B2
Bar-tailed Godwit Limosa lapponica NT non-breeding 2011-2015 8,067-9,012 individuals B1i, C3
Black-tailed Godwit Limosa limosa NT winter 2011-2015 46 individuals B2
Ruddy Turnstone Arenaria interpres LC non-breeding 2011-2015 1,459-1,753 individuals B1i, C3
Red Knot Calidris canutus NT non-breeding 2011-2015 15,253-18,810 individuals A4i, B1i, C3
Dunlin Calidris alpina LC non-breeding 2011-2015 38,355-46,420 individuals B1i, C3
Common Redshank Tringa totanus LC non-breeding 2011-2015 2,769-3,188 individuals B1i, C3
Black-headed Gull Larus ridibundus LC breeding 2011-2015 5,931-6,230 breeding pairs B3
Lesser Black-backed Gull Larus fuscus LC breeding 2011-2015 3,252 breeding pairs B1i, C3
Common Tern Sterna hirundo LC breeding 2011-2015 1,166-1,345 breeding pairs C6
Arctic Tern Sterna paradisaea LC breeding 2011-2015 23-35 breeding pairs C6
Peregrine Falcon Falco peregrinus LC non-breeding 2011-2015 12-15 individuals C6
A4iii Species group - waterbirds n/a non-breeding 2011-2015 207,678-228,518 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)
2018 very high not assessed high
Was the whole site covered? Yes State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - shifting agriculture happening now some of area/population (10-49%) moderate to rapid deterioration high
Agricultural expansion and intensification marine and freshwater aquaculture - industrial aquaculture happening now some of area/population (10-49%) moderate to rapid deterioration high
Biological resource use hunting & collecting terrestrial animals - unintentional effects (species is not the target) likely in short term (within 4 years) majority/most of area/population (50-90%) moderate to rapid deterioration high
Climate change and severe weather habitat shifting and alteration happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance recreational activities happening now majority/most of area/population (50-90%) moderate to rapid deterioration high
Pollution excess energy - light pollution happening now majority/most of area/population (50-90%) very rapid to severe deterioration very high
Transportation and service corridors utility & service lines happening now majority/most of area/population (50-90%) very rapid to severe deterioration very high

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity high
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Voordelta Marine Protected Area (OSPAR) 92,300 protected area is adjacent to site 0
Voordelta Ramsar Site, Wetland of International Importance 90,000 protected area is adjacent to site 0
Thoolse Schorren en Slikken Nature Reserve 149 protected area contained by site 149
Schelphoek Nature Conservation Law 73 protected area contained by site 224
Oosterschelde-buitendijks Natural Monument 22,000 protected area contained by site 22,000
Oosterschelde-binnendijks Natural Monument 340 protected area contained by site 340
Oosterschelde Buitendijks Nature Reserve 752 protected area contained by site 752
Oosterschelde Special Protection Area (Birds Directive) 36,976 is identical to site 35,495
Oosterschelde Site of Community Importance (Habitats Directive) 36,976 is identical to site 36,880
Oosterschelde Ramsar Site, Wetland of International Importance 38,000 is identical to site 36,160
Oosterschelde Nationaal Park 37,989 protected area contains site 0
Oosterschelde Natuurbeschermingswet 36,976 is identical to site 0
Inlagen Noord-Beveland Nature Reserve 45 protected area contained by site 45
Inlagen Anna Friso Nature Reserve 10 protected area contained by site 10

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Coastline Tidal rivers & enclosed tidal waters, Mud flats & sand flats -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
water management -
nature conservation and research -
tourism/recreation -
urban/industrial/transport -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Oosterschelde. Downloaded from http://www.birdlife.org on 16/08/2022.