|Central coordinates||23o 37.00' East 51o 10.00' North|
|IBA criteria||C1, C6|
|Year of IBA assessment||2010|
Site description The site is a complex of calcareous marshesGotówka, Brzeno, B³ota Serebryjskie, Rozkosz and Stefanówsituated north-west and west of Che³m town. Fens overlie the chalk, and are dominated by great fen sedge Cladium. Wetter areas are covered by beds of reed Phragmites and sedge Carex. Within the marshes are chalk islands covered with dry grassland and scrub. Surrounding meadows are used by farmers. Most of the marshes are cut by old but still functioning drainage channels which join the Udal river system (the Bug tributary), the wier¿owski canal system and the Gdolanka river system (the Uherka tributary).
Key Biodiversity Breeding species of global conservation concern that do not meet IBA criteria: Crex crex (six pairs), Gallinago media (16 displaying males).
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Montagu's Harrier Circus pygargus||breeding||2007-2008||31-34 breeding pairs||good||C6||Least Concern|
|Great Snipe Gallinago media||breeding||2007-2008||10-22 males only||poor||C1, C6||Near Threatened|
|Aquatic Warbler Acrocephalus paludicola||breeding||2007-2008||159-195 males only||good||C1, C6||Vulnerable|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Brzezno||Nature Reserve||158||protected area contained by site||165|
|Chelmski OCHK||Protected Landscape Area||34,029||protected area overlaps with site||600|
|Chelmski Park Krajobrazowy||Landscape Park||14,000||protected area overlaps with site||1,100|
|Roskosz||Nature Reserve||473||protected area contained by site||473|
|Rys||Nature Reserve||54||protected area contained by site||377|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Fens, transition mires and springs; Rivers and streams; Water fringe vegetation||23%|
|Artificial - terrestrial||Ruderal land||40%|
|Land-use||Extent (% of site)|
|nature conservation and research||50%|
Protection status National High International None377 ha of IBA covered by Nature Reserve (Bagno Serebryskie, 377 ha). 165 ha of IBA covered by Nature Reserve (Brzeno, 165 ha). 473 ha of IBA covered by Nature Reserve (Roskosz, 473 ha). 1,100 ha of IBA covered by Landscape Park (Che³mski, 14,000 ha). 600 ha of IBA covered by Protected Landscape Area (Che³mski, 32,110 ha).
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Chelm calcareous marshes. Downloaded from http://www.birdlife.org on 04/05/2016
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