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2017 | 26 | 2 |

Tytuł artykułu

Water on the fen mire as a problem in the protection of globally threatened species: long-term changes in aquatic warbler numbers

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This paper presents the results of 11 years study of aquatic warblers in the Roskosz Nature Reserve in eastern Poland. The study was carried out in fen mires near Chełm, in the proximity of the Polish-Ukrainian boundary. The number of aquatic warblers was correlated with the mean water level and with the mean groundwater level. We found that the higher the surface water level, the smaller the number of singing males. The largest number of males (density 10.9 singing males per 10 ha) was found when the mean water level was 23.7 cm, and the smallest number (density 2.1 singing males per 10 ha) when the mean water level was 35.7 cm. These results can be useful in studies that focus on the optimal habitat conditions for breeding of aquatic warblers. This is the first systematic study in calcareous Cladium mariscus fen mires.

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Opis fizyczny



  • Department of Zoology, Animal Ecology, and Wildlife Management, University of Life Sciences in Lublin, Akademicka 13, PL-20-950 Lublin, Poland
  • Department of Applied Mathematics and Computer Science, University of Life Sciences in Lublin Głęboka 28, PL-20-950 Lublin, Poland
  • Department of Nature Conservation, Maria Curie-Skłodowska University, Biology and Biochemistry Institute, Akademicka 19, PL-20-033 Lublin, Poland
  • The State School of Higher Education in Chełm, Pocztowa 54, PL-22-100 Chelm, Poland
  • Faculty of Biological Sciences, University of Zielona Gora, Institute of Biotechnology and Environmental Protection, Prof. Szafran St. 1, PL 65-516 Zielona Gora, Poland
  • Department of Applied Geoinformatics and Spatial Planning, Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamycká 129, CZ-165 00 Prague 6, Czech Republic


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