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close| Location | Netherlands, Friesland |
| Central coordinates | 5o 41.00' East 53o 0.00' North |
| IBA criteria | A4i, A4iii, B1i, B2, C2, C3, C4 |
| Area | 460 ha |
| Altitude | |
| Year of IBA assessment | 2000 |
Ornithological information This is an important roost for geese Anser from surrounding feeding areas. The mean total number of waterbirds in winter exceeds 20,000. Waterbird numbers quoted are rough estimates.
Site description A freshwater lake (former peat-workings) surrounded by marshland and wet meadows that partly flood in winter, and located to the south of the city of Sneek. The site belongs to the same water management unit as Lake Sneekermeer (058). Human activities include reed-harvesting (`Other' land-use, below).
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Pink-footed Goose Anser brachyrhynchus | winter | 1989 | 10,000 individuals | good | A4i, B1i, C3 | Least Concern |
| Greater White-fronted Goose Anser albifrons | winter | 1989 | 15,000 individuals | good | A4i, B1i, C3 | Least Concern |
| Barnacle Goose Branta leucopsis | winter | 1989 | 5,000 individuals | good | A4i, B1i, B2, C2 | Least Concern |
| A4iii Species group - waterbirds | winter | 1989 | - | unknown | A4iii, C4 |
Protected areas
| Protected area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) | |
|---|---|---|---|---|---|
| Witte en Zwarte Brekken | Nature Reserve | 285 | protected area overlaps with site | 262 | |
| Witte en Zwarte Brekken en Oudhof - NL9802048 | Birds Directive | 434 | protected area contained by site | 434 |
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Wetlands (inland) | Standing freshwater; Water fringe vegetation | 45% |
| Artificial landscapes (terrestrial) | Highly improved re-seeded landscapes | 55% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| agriculture | 25% |
| other | 5% |
| fisheries/aquaculture | 30% |
| water management | 100% |
| hunting | 10% |
| nature conservation and research | 57% |
| tourism/recreation | 35% |
Management considerations Wildfowl hunting disturbs birds.
Protection status National Partial International None262 ha of IBA covered by Nature Reserve (Witte en Zwarte Brekken, 285 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Lake Witte and Zwarte Brekken. Downloaded from http://www.birdlife.org on 26/05/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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