Habitat variability of the Littorelletea uniflorae plant communities in Polish Lobelia lakes

摘要

A comparative analysis of the habitats of six plant communities of the Littorelletea uniflorae Br.-Bl. et R.Tx. 1943 class (Ranunculo-Juncetum bulbosi (Nordh. 1921) Oberd. 1957, Lobelietum dortmannae (Osvald 1923) Tx. ap. Dierss. 1972, Myriophyllo-Littorelletum Jeschke 1959 (variant with Littorella uniflora and variant with Myriophyllum alternifloruni), Luronietum natantis Szankowski 1998 n.n. and Isoetetum lacustris Szankowski et Klosowski 1996 n.n.) was conducted in Poland. The communities differ considerably from each other with respect to water and substrate properties, and attain their optimum development under specific habitat conditions. The present study reveals that, in Poland, the substrate properties of the above communities, with the exception of calcium content, vary to the same extent as those of most communities typical of eutrophic lakes.