vol. 51 (1) 2003

pages	Articles
5-35	Rotifera of lake psammon: community structure versus trophic state of lake waters Jolanta Ejsmont-Karabin	Abstract
37-44	Effect of microscopic fungi on the ^137Cs accumulation by some plants growing on radionuclides contaminated soil Nelli Zhdanova, Antonina Vasilevskaya, Tamara Lashko, Martin H. Gerzabek	Abstract
45-51	Genetic diversity test of re-established population of Allium angulosum L. Miroslav Zeidler, Vladislav Čurn	Abstract
53-66	Year-to-year stability of aggregations of Viviparus viviparus (Linnaeus 1758) in littoral zone of lowland, rheophilic reservoir (central Poland) Beata Jakubik	Abstract
67-78	Biological and chemical properties of fen soils affected by anthills of Myrmica spp. Joanna Pętal, Krzysztof Chmielewski, Alina Kusińska, Renata Kaczorowska, Antoni Stachurski, Jerzy Zimka	Abstract
79-84	The response of small mammal communities to cattle grazing on a coastal meadow Niels M. Schmidt and Henrik Olsen	Abstract
85-90	Interactions between soil microorganisms: bacteria, actinomycetes and entomopathogenic fungi of the genera Beauveria and Paecilomyces Elżbieta Popowska-Nowak, Cecylia Bajan, Anna Augustyniuk-Kram, Emilia Kolomiec, Anna Chikileva, Anatoly Lobanok	Abstract
91-99	Epipelic algal of tropical estuary: case of stable and invariable seasonally community Alex C. Chindah, Solomon A. Braide	Abstract
101-108	Leech (Hirudinea) communities of post-exploitation water bodies in industrial region (Upper Silesia, Poland) Mariola Krodkiewska	Abstract