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EN
The investigations were carried out in three zones: rural (I), suburban (II) and urban (III). 22 species (68,7% of the Calliphorid fauna of Poland) were recorded from Mazovia (I). In Warsaw there were found 18 species (81.8% of the fauna of these Dipterans from Mazovia). The material studied was dominated by widely distributed species the larvae of which parasitize invertebrates. An analysis was carried out of the species composition and the domination structure of the communities of parasitic Calliphoridae in the selected habitats of these zones (I-III).
EN
The red wiggler earthworm, Eisenia fetida (Sav.), is a model species for research on the harmfulness of various chemicals for saprophagous invertebrates, on account of its rapid reproduction rate in comparison to other wild-living species and the most uniform genetic background. They are used in a variety of toxicological tests, legally normalised by EU Directives and the OECD. Earthworms have become one of basic subjects of ecotoxicological research evaluating changes in the environment, with special attention paid to various plant protection products and to heavy metals. This is because of their anatomical structure and how they take in food (most eat soil). E. fetida can be used as a bioindicator (in research on populations or reproduction) or as a biomarker at the cellular level or in individual organs.
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