Polish Journal of Ecology, Volume 19Polish Scientific Publishers, 1971 - Ecology |
Contents
Grüm L Spatial differentiation of the Carabus L Carabidae Coleoptera | 1 |
Makulec G Productivity investigation of two types of meadows in | 11 |
Bajan C and Bilewiczawiáska T Preliminary studies | 35 |
9 other sections not shown
Other editions - View all
Common terms and phrases
abundance adult alfalfa amount ants appeared association average biomass body weight bumble-bees calculated carried caught changes collected compared comparison concentration considerable consumption covered crops cultivated culture daily dead density depending determined distribution dominant Ecology effect eggs Ekol elimination estimated experiments factors feeding females field forest forms given groups growth habitat higher humidity imagines increase indicate individuals insects Kazuń lake larvae layer leafhoppers length lower material mean method mites mobility months mortality mycelium natural nests number of individuals observed obtained occur percentage period plants plot Poland population possible predators present production ratio relation relatively resistance samples season shooting similar soil species spiders stage stations Strzeleckie Meadows studies temperature tion Traczyk traps trees variations vegetation Warszawa weight