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The paper presents an analysis of abundance of the millipedes (Diplopoda) in the Białowieża Forest (eastern Poland) regarding habitat moisture and fertility. Mean individual biomass depends mostly on habitat fertility achieving higher values on eutrophic and moist sites. PCA and RDA confirmed observed pattern of relationship between millipedes abundance and site conditions.
W latach 2002–2005 przeprowadzono szczegółowe badania hydrologiczne i biologiczne na wybranych, charakterystycznych odcinkach środkowej Wkry, reprezentującej typ średniej wielkości rzeki Niżu Polskiego. Ustalono, że różnorodność biologiczna strefy korytowej nie jest uzależniona od samego faktu regulacji cieku, ile od obecności specyficznych, powtarzalnych mikrosiedlisk o określonych parametrach hydromorfologicznych...
The paper concerns three problems: 1) importance of the diversity of communities, 2) possibility of increasing the content of soil organic matter by invertebrates, and 3) effects of the management of agricultural landscape on cultivated fields. Microcosm experiments showed that the diversity of plants, animals, and microorganisms had a significant positive effect on productivity, decomposition processes,...
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