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Location Netherlands, Groningen
Central coordinates 6o 30.00' East  53o 32.00' North
IBA criteria A4i, A4iii, B1i, C3, C4, C6
Area 782 ha
Altitude 0 - 6m
Year of IBA assessment 2000

Vogelbescherming Nederland

Site description A small, uninhabited barrier island in the Wadden Sea between Schiermonnikoog and Rottumeroog, with beaches, shifting and fixed sand-dunes, saltmarshes, cord-grass Spartina swards, and mudflats (the entire site is enclosed by site 001). The accretion of the island was promoted by the building of a sand dyke, which was reinforced in the 1970s. There are a small number of guided excursions, otherwise the island is closed to the public. Hunting is restricted to rabbits. The site (all of the mudflats south of the island) has been entirely closed to cockle Cardium and mussel Mytilus fishing since 1993. Coastal defence measures have been reduced since 1988. This site, together with site 012, formed part of a single, larger site (former site NL009) in the previous pan-European IBA inventory (Grimmett and Jones 1989).

Key Biodiversity An important high-tide roost for waterbirds that feed in the Wadden Sea.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Haematopus ostralegus non-breeding  1988-1992  16,640 individuals  medium  A4i, B1i, C3  Not Recognised 
Grey Plover Pluvialis squatarola non-breeding  1987-1991  2,686 individuals  good  A4i, B1i, C3  Least Concern 
Eurasian Curlew Numenius arquata non-breeding  1988-1992  6,351 individuals  medium  A4i, B1i, C3  Near Threatened 
Red Knot Calidris canutus passage  1987-1991  12,556 individuals  good  A4i, B1i, C3  Near Threatened 
Dunlin Calidris alpina non-breeding  1987-1991  37,977 individuals  good  A4i, B1i, C3  Least Concern 
Arctic Tern Sterna paradisaea breeding  1988-1991  103 breeding pairs  good  C6  Least Concern 
A4iii Species group - waterbirds non-breeding  1992  50,000-99,999 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
The Wadden Sea World Heritage Site 968,393 protected area contains site 782  
Waddenzee (Wadden Sea) Wetlands of International Importance (Ramsar) 249,998 protected area contains site 782  
Waddenzee I Natural Monument 125,000 protected area contains site 782  


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

Land use

Land-use Extent (% of site)
hunting 5%
nature conservation and research 100%
tourism/recreation 100%

Protection status National High International High782 ha of IBA covered by Natural Monument (Waddenzee I, 125,000 ha). 782 ha of IBA covered by Special Protection Area (Waddenzee, `250,000 ha' [official, incorrect figure]). 782 ha of IBA covered by Ramsar Site (Waddenzee, `250,000 ha' [official, incorrect figure]).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Rottumerplaat. Downloaded from on 24/10/2016

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