|Central coordinates||6o 3.00' East 52o 42.00' North|
|IBA criteria||B1i, B2, C2, C3, C6|
|Year of IBA assessment||2000|
Site description An area of shallow lakes and canals (former peat-workings) with fens, reedbeds, swampy woodland and wet meadows, located to the north of the city of Zwolle. The IBA is adjacent to De Weerribben (064), with which it formed a single site (`De Wieden and De Weerribben', the former site NL027) in the previous pan-European IBA inventory (Grimmett and Jones 1989). Human activities include water-sports, tourism and reed-harvesting (`Other' land-use, below).
Key Biodiversity A roost for geese Anser from surrounding feeding areas, but no counts are available.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Great Cormorant Phalacrocorax carbo||breeding||1987-1991||864 breeding pairs||good||B1i, C3||Least Concern|
|Spotted Crake Porzana porzana||breeding||1995||5 breeding pairs||good||C6||Least Concern|
|Black Tern Chlidonias niger||breeding||1983-1984||128 breeding pairs||medium||B2, C2, C6||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|De Wieden||Nature Reserve with Management Subsidy||4,216||protected area contained by site||4,991|
|De Wieden||Wetlands of International Importance (Ramsar)||9,400||protected area overlaps with site||9,400|
|De Wieden II||Nature Reserve||285||protected area contained by site||285|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest||12%|
|Wetlands (inland)||Standing freshwater; Water fringe vegetation||73%|
|Artificial - terrestrial||Highly improved re-seeded landscapes||14%|
|Land-use||Extent (% of site)|
|nature conservation and research||62%|
Protection status National Partial International None4,991 ha of IBA covered by Nature Reserve (De Wieden, 4,991 ha). 285 ha of IBA covered by Nature Reserve (De Wieden II, 285 ha).
Contribute Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.
Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: De Wieden. Downloaded from http://www.birdlife.org on 27/07/2016
To provide new information to update this factsheet or to correct any errors, please email BirdLife