Ketelmeer & Vossemeer

IBA Justification

The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Gadwall Mareca strepera LC non-breeding 2011-2015 2,531-3,701 individuals B1i, C3
Common Ringed Plover Charadrius hiaticula LC breeding 2011-2015 17 breeding pairs B3
Caspian Tern Hydroprogne caspia LC non-breeding 2011-2015 3-7 individuals C6
A4iii Species group - waterbirds n/a non-breeding 2011-2015 min 19,387 individuals A4iii, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2016).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2017 very unfavourable not assessed low
Was the whole site assessed? State assessed by Accuracy of information
yes population good

State (condition of the trigger species' populations)
Scientific name Common name Reference population Actual population Units % of population remaining Result
Mareca strepera Gadwall 160 2531 individuals 100 favourable
Hydroprogne caspia Caspian Tern 10 3 individuals 30 very unfavourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other 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90%) covered by appropriate conservation designation A management plan exists but it is out of date or not comprehensive Unknown low
For more information about IBA conservation status, please click here

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Rijntakken Special Protection Area (Birds Directive) 23,048 protected area is adjacent to site 0
Rijntakken Site of Community Importance (Habitats Directive) 8,440 protected area is adjacent to site 0
Rijntakken Natuurbeschermingswet 23,047 protected area is adjacent to site 0
Ketelmeer en Vossemeer Ramsar Site, Wetland of International Importance 3,900 protected area overlaps with site 3,900
Ketelmeer & Vossemeer Natuurbeschermingswet 3,843 is identical to site 0
Ketelmeer & Vossemeer Special Protection Area (Birds Directive) 3,843 is identical to site 3,846
IJsseluiterwaarden Site of Community Importance (Habitats Directive) 1,538 protected area is adjacent to site 0
IJssel Special Protection Area (Birds Directive) 4,139 protected area is adjacent to site 0


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
water management -
hunting -
tourism/recreation -
urban/industrial/transport -

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ketelmeer & Vossemeer. Downloaded from on 28/02/2024.