Ekologia Polska, Volume 20

algae ants aphids arvensis average number bassiana Beauveria bassiana Beech Berlese Białystok biomass birds caught Cena zł colonies cooling power density depth distribution domination drainage basin ecosystem Ekol estimated eulittoral eutrophic farinosus fauna feeding females forest Formica Fourmis fungi g/m² gatunków groups grzybów habitat herb layer Hooded Crows Hypoaspis increase infection Kajak Końskowola larvae Lasius leeches littoral Łódź Łodzi macrophytes method Mikołajskie Lake mite community Myrmica nematodes nest nids non-settled Nowy Świat 72 Nowy Targ number of individuals number of species numbers of aphids observed occur Olszewski organic matter percentage Pergamasus period periphyton pine plankton plantation plants Poland Polygonum populacji population population density primary production river rodents salt-marsh samples Scots pine season seedlings Serafińska Address shore line Śniardwy soil stations study areas temperature tion total number tree values Warszawa water level Willmann workers Wrocław Wydawnictwo Naukowe Oddział zone