Population structure and regeneration of Phragmites australis (Cav.) Trin. ex Steud. in flood control ditches in the depression wetland (Żuławy Wiślane, Northern Poland)
Patrycja Boszke, Katarzyna Bociąg, Józef Szmeja

Changes of population structure of Taxus baccata L. during 25 years in protected area (Carpathians, Western Ukraine)
Grzegorz Iszkuło, Adam Boratyński, Yakov Didukh, Kostantin Romaschenko, Nadya Pryazhko

Species composition of woody vegetation of three types of mid-field woodlots in intensively managed farmland (Wrocław Plain, South-Western Poland)
Grzegorz Orłowski, Lech Nowak

Nematodes colonizing power plant ash dumps. II. Nematode communities in ash dumps covered with turf – effect of reclamation period and soil type
Ewa Dmowska

Response of enchytraeid community (Oligochaeta, Enchytraeidae) to manipulation of microbial biomass
Ewa Nowak, Zofia Piotrowska-Seget, Krzysztof Chmielewski

Testing the suitability of leeches (Hirudinea, Clitellata) for biological assessment of lowland streams
Paweł Koperski

Stream habitats, benthic macroinvertebrates, lotic fish and their relationships: a multi-scale approach
Tadeusz Fleituch, Antoni Amirowicz

Generic composition and respiratory activity of heterotrophic bacteria of marine sandy beach (Southern Baltic Sea)
Zbigniew Jan Mudryk, Beata Podgórska

Urease activity and ATP content in soil and plant related to copper concentration
Bożena Śnieg, Janina Nowak

Survival of pigmented freshwater zooplankton, exposed to artificial ultraviolet radiation and two levels of dissolved organic carbon
Patricio De los Ríos

Nocturnal activity of Carabus hortensis L. (Coleoptera , Carabidae ) in two forest sites studied with harmonic radar method
Jan Szyszko, Siergiej Gryuntal , Axel Schwerk

Local warming about 1.3 o C in alpine meadow has no effect on root vole ( Microtus oeconomus L.) population during winter
Ping SUN, Xinquan ZHAO, Julia A. KLEIN, Wanhong WEI

Do dense and fast growing crops provide foraging habitats for insectivorous birds?
Adrian Surmacki

Semi-natural reedbeds as breeding habitat of Bluethroat ( Luscinia svecica L .) on sewage farm in Wrocław city (South-Western Poland)
Grzegorz Orłowski, Marcin Sęk

Egg dimensions of the Great Tit ( Parus major L . ) in Croatia
Zdravko Dolenec, Milorad Mrakovčić, Antun Delić