We kindly inform you that, as long as the subject affiliation of our 300.000+ articles is in progress, you might get unsufficient or no results on your third level or second level search. In this case, please broaden your search criteria.
It was shown that some emergent aquatic plants may be used for treatment of waste waters. The plants have specific composition of surface lipids (SL). The SL composition was found to be changed under the influence of water pollutants. These changes concerned the processes of elongation and desaturation of the SL components. The response to contamination was specific for each species.
More...
On the basis of research of litter mesofauna in four forest biogeocenoses of the Poltava region the trophic-weight models of invertebrate communities are creating. The biomass differentiation between trophic levels, weight and taxonomic structure of the separate levels are analysed. The differentiation and similarity of the trophic-weight models of litter invertebrate communities are discussed.
More...
Functions of the timber plantings in steppe zone are under consideration. The main types of water-protecting forests are explored. Their role in protection of the water sources from erosive processes is determined. The function of ravine forests is analysed.
More...
It was shown that some emergent aquatic plants may be used for treatment of waste waters. The plants have specific composition of surface lipids (SL). The SL composition was found to be changed under the influence of water pollutants. These changes concerned the processes of elongation and desaturation of the SL components. The response to contamination was specific for each species.
More...
The most consumed food objects of Harpalus rufipes (De Geer, 1774) were determined. Experiments included variants with and without food choice. The list of uneatable invertebrates of H. rufipes (De Geer) was formed. H. rufipes (De Geer) interrelations with dominant predators of forest biogeocoenoses were analysed.
More...
The herbicides treatment entails essential cytogenetic changes in maize root meristems. It is directed on realisation of strategy of the avoidance of the environment factors’ deleterious influence. Optimisation of cultivated plants state can be ensured by appropriate land treatments.
More...
Complex energy-ecology-saving system with the usage of compact power plants has been developed and recommended for country estates, farm houses and lands. The energy-ecology-saving system is a complex consisting of energetically interacting elements: house – hothouse (winter garden) – biogas reactor. Recycling of household and agricultural wastes is used extensively.
More...
Number and species status of the diurnal birds of prey in the Dnipropetrovsk region are under consideration. Seasonal change of the birds’ number in natural and anthropogenic ecosystems was studied. The degree of climatic influence on the birds’ preference of different biotopes in the steppe Dnieper region was analysed.
More...
The changes of some agrochemical properties of soils of model plots closed to industrial enterprises with fluoride atmospheric emissions were studied. The alkalescence of soils at the plots was found. The reduction of content of the mobile forms of phosphorus, nitrite and nitrate forms of nitrogen and humus level in soil is caused by the increasing amount of nitrogen of ammonium compounds.
More...
Basic descriptions of blossoming of some ornamental flowering plants under condition of environmental pollution by motor transport emissions are presented. Amount of flowers (or inflorescences) per individual plant is the most informative test-index at highways territories. Petunia × hybrida and Salvia splendens are proposed to be a test object for phytomonitoring.
More...
The literature data on physiology and ecology characteristics of testate amoebas Testacea, Rhizopoda were reviewed. The testate amoebas can be used as the bioindicators of the different soil conditions in natural biogeocenoses. The data of using the superclass Rhizopoda members as indicators of anthropogenic influences on soil are given.
More...
Effect of different concentrations of nickel ions (10 - 4, 10 - 5 and 3.4 × 10 - 6 М × l - 1) on the root growth and apical meristem cell division in the seedling of Zea mays L. has been studied. Peculiarities of the nickel ions cytotoxic effect was estimated by the mitotic index, index of aberrations and pycnotic nuclei changes. Toxicity of the nickel ions for the maize meristematic tissues is ascertained.
More...
Causes of the species numbers decreasing of the genus Carabus have been analysed. It was found, that abundance of pabular objects and total numbers of mesofauna on the plots of the carabid beetles’ high abundance (0.1‑0.9 spec./10 trap-days) are no different from the sites of the caraids’ numbers of one-two orders of magnitude less. The competitive relationships among zoophages of the upper trophic levels are less tense than among organisms of the lower trophic levels (producers, consumers of first- and second-orders)
More...
Using two-factor experimental design the combined action of osmotic pressure (simulated drought) and residual herbicide Frontier through a radical zone of maize and wheat seedlings was studied. The regressions between the module of superoxide dismutase activity shift and factors varied at three levels were obtained. The indices of plant tolerance to exogenous factors correlate with enzymatic activity.
More...
The influencing of elk and roe deer excrements on radio nuckleids migration in the soil horizon under zinc pollution circumstances has been investigated. It is confirmed that mammals excretory activity is an important acting natural ecological factor further radio nuckleids quickly redistribution in the soil thus reducing the level of radioactivity and heavy metals
More...
Comparative description of percentage ratio of age groups in populyations of background kind is conducted - Apodemus silvaticus from the habitats different on the degree of transformations. It is set, that the age composition of populations of shallow mammals can serve by the criterion of their functioning.
More...
Influence of heavy metals on growth, biosynthesis, lytic action and growth stimulating activity enzymes complex of Streptomyces recifensis var. lyticus was studied. It was showed that salt of plumbum' has positive influence as on biosynthesis hydrolases (lytic endopeptidases, proteinases, amylases) as well increase growth stimulating activity of preparation relatively the yeast
More...
The herbicides use increases weeds toxicity. This influences negatively development of culture plants. The variability of this parameter is increased simultaneously with tendency of stabilization on high level of toxicity. This may be account of feature of new weeds races formation which are stable to broad diapason of chemical means of defence from weeds.
More...
The modern condition of the environment protection in territory of the Dnipropetrovsk region has been analyzed. Series of practical actions for optimization of condition natural and anthropogeneous transformed ecosystems on 2005-2015 are offered
More...
