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Еcological Complexes of Beetles (Insecta: Coleoptera) Coastal Area of Floodplain Lakes of Medveditsa River (Saratov Area)

Authors: Anikin V. V., Nazimova A. A., Sazhnev A. S.

The article contains the results of the coastal beetles research (floodplain lakes of Medveditsa river Lysogorsky district Saratov region). There is also a brief description of the investigated biotope. List of 68 species of beetles is presented. The representatives of investigated set of beetles are divided into ecological groups, humid gradient and food chains.

мChange of Ecological and Biological Properties of Light Brown Soils of Kalmykia at Oil Pollution

Authors: Buluktaev А. А., Sangadzhieva L. K., Davaeva T. D.

Change of ecological and biological properties of light brown soils of Kalmykia at oil pollution is investigated. Negative influence of oil pollution on biological properties of light brown soils is studied. Influence of oil pollution on body height and development of plants is studied. Oil negatively influences such indicators of plants as the root length, the stalk length, the quantity of the sprouted plants, they decrease. It is proved that oil pollution of the light brown soil leads to change of physical and chemical properties of soils.

Accumulation of heavy metals and arsenic with medicinal herbal raw material of common shovel harvested in Voronezh region

Authors: Dyakova N. A.

The Voronezh region is traditionally the most important area of crop production and agriculture. The purpose of the research was to study the contamination with heavy metals of medicinal plant raw materials of the Voronezh region using the example of the roots of ordinary burdock, prepared in urbo- and agro-ecosystems, which have various anthropogenic effects on themselves. The accumulation of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic in 51 samples of raw materials was studied.

Species composition of microorganisms of the trophic chain: Cereal plants – aphids

Authors: Dymnich A. S., Glinskaya E. V.

The article is devoted to the study of the species composition of microorganisms of the trophic chain: cereal plants – aphids. The objectives of the study were to determine the species composition, occurrence index and quantitative indicators of associative microorganisms of rye plants of the “Marusenka” variety and common grass aphids. The work was carried out on the basis of the Department of Microbiology and Plant Physiology of N. G. Chernyshevsky SSU.

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