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Location Netherlands, Groningen
Central coordinates 6o 34.00' East  53o 26.00' North
IBA criteria A4i, A4iii, B1i, B2, B3, C2, C3, C4, C6
Area 4,600 ha
Altitude 0 - 2m
Year of IBA assessment 2000

Vogelbescherming Nederland



Site description An extensive area of intertidal mudflats, saltmarshes and grassland polders outside the Wadden Sea dyke of Groningen (total length 34 km), contiguous with the Wadden Sea itself (site 001). The site is adjacent in the east to Lauwersmeer (015) and to the Eems/Dollard estuary together with the port and industrial area of Eemshaven. Land reclamation by the furthering of natural accretion (intensified since the 1930s) has been ended, but the existing system of dams and ditches will be maintained to reduce erosion. One-third of the mudflats have been closed to shellfish fisheries.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Barnacle Goose Branta leucopsis winter  1990  8,221 individuals  medium  A4i, B1i, B2, C2  Least Concern 
Brent Goose Branta bernicla non-breeding  1990  7,789 individuals  medium  A4i, B1i, C3  Least Concern 
Common Shelduck Tadorna tadorna non-breeding  1990  9,349 individuals  medium  A4i, B1i, C3  Least Concern 
Haematopus ostralegus non-breeding  1991  41,446 individuals  medium  A4i, B1i, C3  Not Recognised 
Pied Avocet Recurvirostra avosetta breeding  1991  1,263 breeding pairs  good  A4i, B1i, B3, C2, C6  Least Concern 
Pied Avocet Recurvirostra avosetta non-breeding  1990  4,091 individuals  medium  A4i, B1i, C2, C6  Least Concern 
Grey Plover Pluvialis squatarola non-breeding  1990  8,968 individuals  medium  A4i, B1i, C3  Least Concern 
Common Redshank Tringa totanus non-breeding  1990  2,445 individuals  medium  B1i, C3  Least Concern 
Bar-tailed Godwit Limosa lapponica passage  1990  12,330 individuals  medium  A4i, B1i, C2, C6  Least Concern 
Eurasian Curlew Numenius arquata non-breeding  1990  15,788 individuals  medium  A4i, B1i, C3  Near Threatened 
Eurasian Curlew Numenius arquata winter  1990  14,693 individuals  medium  A4i, B1i, B2, C3  Near Threatened 
Red Knot Calidris canutus winter  1990  889 individuals  medium  B2  Least Concern 
Dunlin Calidris alpina non-breeding  1990  26,474 individuals  medium  A4i, B1i, C3  Least Concern 
A4iii Species group - waterbirds winter  1990  20,000-49,999 individuals  unknown  A4iii, C4   
A4iii Species group - waterbirds non-breeding  1990  100,000-499,999 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kwelders Groninger Noordkust Nature Conservation Law 81 protected area contained by site 90  
Kwelders langs de noordkust van Groningen Natural Monument 1,220 protected area contained by site 1,220  
Uithuizerwad Nature Reserve 43 protected area contained by site 43  
Waddenzee - NL1000001 Habitats Directive 259,214 protected area contains site 4,600  
Waddenzee - NL9801001 Birds Directive 272,027 protected area contains site 4,600  
Waddenzee (Wadden Sea) Wetlands of International Importance (Ramsar) 249,998 protected area contains site 4,600  
Waddenzee I Natural Monument 125,000 protected area overlaps with site 3,380  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Coastline Mud flats & sand flats; Sand dunes & beaches  100%

Land use

Land-use Extent (% of site)
agriculture 10%
fisheries/aquaculture 66%
hunting 30%
nature conservation and research 100%
tourism/recreation 100%

Protection status National High International High2,270 ha of IBA covered by Natural Monument (Waddenzee I, 125,000 ha). 4,800 ha of IBA covered by Natural Monument (Noord-Friesland buitendijks, 4,800 ha). 700 ha of IBA covered by Natural Monument (Noord-Friesland buitendijks II, 700 ha). 670 ha of IBA covered by Natural Monument (Kwelder langs de noordkust van Friesland, 670 ha). 964 ha of IBA covered by Nature Reserve (Noord Friesland buitendijks, 940 ha). 9,310 ha of IBA covered by Special Protection Area (Waddenzee, `250,000 ha' [official, incorrect figure]). 8,360 ha of IBA covered by Ramsar Site (Waddenzee, `250,000 ha' [official, incorrect figure]).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Groningen Wadden Sea coast. Downloaded from http://www.birdlife.org on 23/10/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife