Ekologia Polska, Volume 22Państwowe Wydawnictwo Naukowe, 1974 - Ecology |
Contents
A Stachurski Stabilization mechanisms of energy transfer by Ligidium hypnorum | 3 |
J Zimka Predation of frogs Rana arvalis Nilss in different forest site conditions | 31 |
Spodnie w ska The structure and production of phytoplankton in Mikołajskie Lake | 107 |
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abundance actinomycetes activity algae Analysis animals autumn average biomass calculated carabid Carex gracilis Cladocera Czerwiński decomposition decrease density dominant drainage basin Dziekanów Leśny earthworms Ecology ecosystem Ekol estimated eutrophic faeces fertilizers flysch FMCF forest frogs g/m² grazed groups growing season habitat higher humus increase Iris pseudoacorus kindtii larvae layer leaf accumulation Leśny Lumbricidae macrofauna manure maximal metabolism method microbiological microflora microorganisms micropopulations Mikołajskie Lake mineral mountains the Carpathians neustria nitrogen non-dominant number of individuals occur organic matter penning-up sheep percentage period phytophages phytoplankton phytoplankton biomass Pieniny mountains plankton plant population predators primary production pure pine stands relation samples saprophages Scarabaeidae seeds sheep dung sheep pasture ecosystem sheep-fold soil sorbent-fertilizer species composition Spergula vernalis spring study areas summer surface Tałtowisko Tatur temperature tion Toruń Traczyk trophic values vipers Warszawa weight wind velocity zoophages zooplankton