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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
Whooper Swan Cygnus cygnus	LC	winter	2011-2016	48 individuals	B3
Tundra Swan Cygnus columbianus	LC	non-breeding	2011-2016	495 individuals	B1i, C2, C6
Brent Goose Branta bernicla	LC	non-breeding	2011-2016	5,446-8,067 individuals	B1i, C3
Barnacle Goose Branta leucopsis	LC	non-breeding	2011-2016	18,204-20,182 individuals	A4i, B1i, C2
Red-breasted Merganser Mergus serrator	LC	breeding	2011-2016	26-35 breeding pairs	B2
Red-breasted Merganser Mergus serrator	LC	non-breeding	2011-2016	5,258-6,738 individuals	B1i, C3
Red-breasted Merganser Mergus serrator	LC	winter	2011-2016	4,730 individuals	B2
Common Shelduck Tadorna tadorna	LC	non-breeding	2011-2016	2,953-5,369 individuals	B1i, C3
Eurasian Wigeon Mareca penelope	LC	non-breeding	2011-2016	15,050-20,620 individuals	B1i, C3
Horned Grebe Podiceps auritus	VU	non-breeding	2011-2016	18-31 individuals	C6
Horned Grebe Podiceps auritus	VU	winter	2011-2016	10 individuals	B2
Black-necked Grebe Podiceps nigricollis	LC	non-breeding	2011-2016	2,710-4,401 individuals	B1i, C3
Common Coot Fulica atra	LC	winter	2011-2016	6,156-15,891 individuals	B2
Eurasian Spoonbill Platalea leucorodia	LC	non-breeding	2011-2016	197-220 individuals	B1i, C2
Little Egret Egretta garzetta	LC	non-breeding	2011-2016	37-60 individuals	C6
Pied Avocet Recurvirostra avosetta	LC	breeding	2011-2016	225-323 breeding pairs	C6
Common Ringed Plover Charadrius hiaticula	LC	breeding	2011-2016	17-23 breeding pairs	B3
Kentish Plover Charadrius alexandrinus	LC	non-breeding	2011-2016	69-109 individuals	C6
Kentish Plover Charadrius alexandrinus	LC	breeding	2011-2016	54-76 breeding pairs	C6
Mew Gull Larus canus	LC	breeding	2011-2016	248-280 breeding pairs	B3
European Herring Gull Larus argentatus	LC	breeding	2011-2016	2,516-3,116 breeding pairs	B2
Great Black-backed Gull Larus marinus	LC	breeding	2011-2016	19-26 breeding pairs	B3
Little Tern Sternula albifrons	LC	breeding	2011-2016	143-172 breeding pairs	B1i, C6
Arctic Tern Sterna paradisaea	LC	breeding	2009-2014	min 51 breeding pairs	C6
Sandwich Tern Thalasseus sandvicensis	LC	breeding	2011-2016	2,479-4,479 breeding pairs	A4i, B1i, B3, C2, C6
Peregrine Falcon Falco peregrinus	LC	non-breeding	2011-2016	12-14 individuals	C6
A4iii Species group - waterbirds	n/a	non-breeding	2011-2016	63,492-77,730 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

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)	whole area/population (>90%)	very rapid to severe deterioration	very high
Human intrusions and disturbance	recreational activities	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Residential and commercial development	tourism and recreation areas	happening now	whole area/population (>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

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Grevelingen	Ramsar Site, Wetland of International Importance	13,900	protected area contains site	13,900
Grevelingen	Natuurbeschermingswet	13,753	is identical to site	0
Grevelingen	Special Protection Area (Birds Directive)	13,753	is identical to site	13,826
Grevelingen	Site of Community Importance (Habitats Directive)	13,753	is identical to site	13,810

IUCN Habitat	Habitat detail	Extent (% of site)
Wetlands (inland)	Standing brackish and salt water	-
Artificial/Terrestrial	Highly improved re-seeded landscapes	-

For further information about the habitat classification please click here.

Land-use	Extent (% of site)
fisheries/aquaculture	-
water management	-
hunting	-
nature conservation and research	-
tourism/recreation	-
agriculture	-

For further information about the land use classification please click here.

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