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close| Location | Poland, dolnoslaskie,opolskie |
| Central coordinates | 17o 7.00' East 50o 28.00' North |
| IBA criteria | C1, C3, C4 |
| Area | 2,023 ha |
| Altitude | 210 m |
| Year of IBA assessment | 2010 |
Ornithological information More than 20,000 migrating and wintering waterbirds occur regularly, mainly geese Anser, ducks Anas, and Vanellus vanellus and other waders.
Site description A large storage reservoir on the Nysa K³odzka river, situated amongst hills in an agricultural landscape, not far from Nysa reservoir. Broadleaved forest adjoins the embanked eastern side. The western and southern shores have a more natural character, being covered with a wide belt of willow Salix bushes. The northern part is used for recreation. The reservoir controls water flow for navigation on the Odra river, and there are considerable fluctuations in water-level. Although some parts of the shore are shingle, the bottom of the reservoir is generally muddy and sandy.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Bean Goose Anser fabalis | passage | 2004-2008 | 65,000 individuals | good | C3 | Least Concern |
| Eurasian Curlew Numenius arquata | passage | 2004-2008 | 225 individuals | good | C1 | Near Threatened |
| A4iii Species group - waterbirds | passage | 2004-2008 | 20,000-70,000 individuals | good | C4 |
Protected areas
| Protected area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) | |
|---|---|---|---|---|---|
| Zbiornik Otmuchowski - PLB160003 | Birds Directive | 2,027 | protected area overlaps with site | 1,870 |
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Forest | Alluvial and very wet forest; Broadleaved deciduous woodland | 5% |
| Wetlands (inland) | Standing freshwater; Water fringe vegetation | 95% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| tourism/recreation | 20% |
| water management | 80% |
| hunting | - |
Management considerations Rapid filling of the reservoir (during river floods) reduces or eliminates suitable foraging/resting habitat for staging waders on migration.
Protection status National None International None
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Otmuchów reservoir. Downloaded from http://www.birdlife.org on 19/06/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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