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close| Location | Poland, warminsko-mazurskie |
| Central coordinates | 21o 38.00' East 53o 49.00' North |
| IBA criteria | C6 |
| Area | 1,252 ha |
| Altitude | 100 m |
| Year of IBA assessment | 2010 |
Ornithological information Large concentrations of waterbirds occur, regularly exceeding 20,000 individuals, mainly swans, ducks, Fulica atra, and gulls Larus. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (1-2 non-breeding birds feed in the IBA, nesting nearby), Crex crex (4-6 pairs).
Site description A very shallow (up to 3 m deep) nutrient-rich lake, with adjoining sedge-beds, transitional mires, alder Alnus woodland and willow Salix scrub. The lake shores are covered by beds of bulrush Scirpus, reed Phragmites and reed-mace Typha. Three-quarters of the lake bottom is covered by stonewort Chara and pondweed Potamogeton. The lake and a surrounding 100-m-wide belt are protected, but the area beyond is cultivated.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Little Crake Porzana parva | breeding | 2005-2008 | 30-40 males only | good | C6 | Least Concern |
Protected areas
| Protected area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) | |
|---|---|---|---|---|---|
| Jezioro Luknajno | Wetlands of International Importance (Ramsar) | 710 | protected area contained by site | 710 |
|
| Jezioro Tuknajno - PLB280003 | Birds Directive | 1,380 | protected area overlaps with site | 1,082 | |
| Luknajno | Nature Reserve | 710 | protected area contained by site | 710 |
|
| Puszcza Piska - PLB280008 | Birds Directive | 172,802 | protected area is adjacent to site | 0 |
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Forest | Alluvial and very wet forest | 1% |
| Artificial landscapes (terrestrial) | 8% | |
| Grassland | Humid grasslands; Mesophile grasslands | 32% |
| Wetlands (inland) | Fens, transition mires and springs; Standing freshwater; Water fringe vegetation | 54% |
| Other | 5% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| nature conservation and research | 90% |
| fisheries/aquaculture | 10% |
Management considerations Water overflow from Œniardwy lake threatens the shallow end of this lake with nutrient pollution, following agricultural run-off in the surrounding area.
Protection status National High International High710 ha of IBA covered by Nature Reserve (Jezioro £uknajno, 710 ha). 710 ha of IBA covered by Ramsar Site (Jezioro £uknajno, 710 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Luknajno lake. Downloaded from http://www.birdlife.org on 23/05/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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