Markiezaat This is an IBA in danger! 

IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Northern Shoveler Spatula clypeata LC non-breeding 1987-1990 455 individuals B1i, C3
Gadwall Mareca strepera LC non-breeding 1988-1990 916 individuals B1i, C3
Pied Avocet Recurvirostra avosetta LC breeding 1987-1991 265 breeding pairs B1i, B3, C2
Charadrius alexandrinus NR breeding 1987-1991 30 breeding pairs B2
Mediterranean Gull Larus melanocephalus LC breeding 1987-1991 14 breeding pairs C6

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)
2017 very high very unfavourable medium
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Pollution agricultural & forestry effluents - nutrient loads happening now majority/most of area/population (50-90%) very rapid to severe deterioration very high

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Mareca strepera Gadwall 280 1564 individuals 100 favourable
Platalea leucorodia Eurasian Spoonbill 20 133 breeding pairs 100 favourable
Charadrius alexandrinus Kentish Plover 220 8 breeding pairs 4 very unfavourable

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 Very little or no conservation action taking place medium
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Oosterschelde & Markiezaatmeer Ramsar Site, Wetland of International Importance 38,000 protected area overlaps with site 2,030
Molenplaat Nature Reserve 107 protected area contained by site 107
Markiezaatsmeer-Zuid II Natural Monument 160 protected area contained by site 160
Markiezaatsmeer Zuid Natural Monument 1,700 protected area contained by site 1,700
Markiezaat Nature Conservation Act 1,832 protected area contained by site 1,300
Markiezaat Special Protection Area (Birds Directive) 1,311 protected area contained by site 1,800


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater, Water fringe vegetation -
Artificial - terrestrial Highly improved re-seeded landscapes -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
agriculture -
hunting -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Markiezaat. Downloaded from on 09/12/2019.