ANNIVERSARIES AND MEMORABLE DAYS
GENERAL PROBLEMS
Abstract. Aim. The prevalence of some factors affecting the health status of residents of 14 rural settlements in the Untsukul District of the Republic of Dagestan is established. The total number of respondents was 2,634, including 1,453 women and 1,181 men. The survey involved people aged 18 to 97 years. Methods. The study was carried out by a survey of respondents using a questionnaire, including questions on the assessment of their self-preserving behavior. Results. The prevalence of risk factors for health associated with lifestyle – smoking, regularity and quality of food, physical activity. To preserve their own health, the majority of respondents (55%) consider a healthy lifestyle to be determined, but the practice of self-preserving behavior is not widely spread. Regular meals (at least three times a day) were noted by 51.3% of respondents. The share of respondents, regularly (every day) engaged in phys- ical culture and sports, was 27%. The territorial differentiation of inhabited localities of Untsukul region is revealed by the prevalence of factors of self-preserving behavior. Conclusion. The obtained information on the way of life of residents of the Untsukul district can be used in the development of medical and at improving the quality of life of the population, creating a culture of self-preserving behavior.
Abstract. Aim. Conduct scenario modeling of the development of the social and economic system of the region fromthe standpoint of its sustainability. Material and methods. The basis of the work has been put data on the relation- ship of the main subsystems that form the socio-economic and environmental regional mechanism, the results of expert surveys, the annual statistical report on the socio-economic development of the region. Results. A cognitive map of the interrelationships of the main elements of the socioeconomic and ecological mechanism of the region, taking into account the specifics of the Republic of Dagestan, is constructed. The analysis of the stability of the social and economic system of the region regarding the feedback cycles for the indicator "natural environment", which showed that the system is not stable. The results of the scenario modeling of the development of the region showed that the regulatory role of the federal center is an important controlling factor for the region regarding its sustainabil- ity. The possibility of using scenario modeling for designing strategies for sustainable development of the region on the basis of cognitive structuring of the development of possible situations is shown. Conclusion. The opportunities for cognitive structuring of knowledge about the problem situation are significant for developing scenarios for the development of the region from the standpoint of its sustainability and designing strategies for the sustainable development of its socio-economic system based on them. The most significant stage in the study of this problem is the collection of information, and its structuring in the form of a cognitive map.
ECOLOGY OF ANIMALS
Abstract. Aim. The aim of the work was to study the characteristics of the ecology, the chorology and genesis of thesnout beetles of Ptochus genus in Dagestan, as well as designing the maps of their ranges. Materials and methods. The work was based on the materials of expedition and ecology-faunistic studies conducted from 1999 to 2017 in various regions of Dagestan using the basic entomological methods. For mapping were used the following source materials: the database created by the authors for the study group, the map of the Republic of Dagestan taken fromthe National Atlas of Russia, topographic maps from MapInfo 15.2 and maps made in Adobe Illustrator CreativeCloud. Results. The characteristics of the ecology and geographic distribution of the snout beetles of Ptochus genus in Dagestan have been studied; the following maps are created: "The areas of the snout beetles of Ptochus genus of Dagestan" and "The areas of the snout beetles of Ptochus genus of the Botlikh trench of Dagestan". Conclusion. In the fauna of Dagestan, 7 species of Ptochus snout beetles, associated with arid steppe and semidesert landscapes,ed distribution maps and bioecological features, a hypothesis was put forward on the genesis of the study group in the territory of Dagestan.
ECOLOGY OF PLANTS
Abstract. Aim. To determine the amount and age structure of Ophrys oestrifera and O. apifera populations on the territory of the Tepe-Oba botanical reserve (South-East Crimea), study the morphological features of plants. To evaluate the current populations' state and identify factors of threats. Material. Three populations of Ophrys oestrifera and one population of O. apifera were found and studied on the territory of Tepe-Oba, their quantitative and age composition (structure) were determined, vitality of individuals for O. oestrifera populations was defined. Results. O. oestrifera grows in three localities on the areas of 10 to 400 m2 and in the numbers of 28 to 342 individuals. The population of O. apifera has its area of 10 m2 and its size is 15 generative specimens. Populations O. oestrifera No. 1, 2 are young, normal and stable. Populations of O. oestrifera No. 3 and O. apifera have not yet reached their dynamic equilibrium (balance). O. oestrifera index of vitality doesn't significantly different in three populations (IVC=1,00– 1,09), that indicates approximately the same kind of growing conditions in the studying territory. However, growing in the same conditions O. apifera has some biometric differences from the O. oestrifera. For example, O. oestrifera plants are 1.5 times higher, inflorescence length is on average 2.5–3 times longer, and number of flowers in the inflorescence is 1,5 times more than those O. apifera. Main conclusions. The condition of O. oestrifera population in the territory of Tepe-Oba is satisfactory. Insignificant differences diversity in their vital structure can be associated with a e condition of O. apifera population is threatening because of its low size, small area and the lack of pregenerative plants in the age spectrum.
AGROCULTURAL ECOLOGY
ECOLOGICAL TOXICOLOGY
Abstract. The aim is to study the change in the enzymatic activity in Kalmykia soils under oil pollution, as well as to study the phytotoxicity of contaminated soils. Methods. A laboratory experiment was conducted to study the phytotoxicity and enzymatic activity in soils. As objects of research, brown semidesert, light chestnut and chernozem soils (Black soil) were selected. Common bean was chosen as the testing culture. The levels of oil pollution in the study area were different. The phytotoxicity of soils was identified by the germination, the length of the terrestrial part of the plants, the length of the root and the total biomass. The enzymatic activity in soils was determined by the methods of T.A. Shcherbakova, Shtefanika, Yarni, Tomesku, A.Sh. Galstyan, F.KH. Khazieva, Ya.M. Agaforova, A.E. Gulko. Results. As a result of the conducted studies it was revealed that the soils of Kalmykia are not resistant to oil pollution, even insignificant concentrations of oil cause a change in the enzymatic activity in soils. All investigated oil contaminated soil samples show a negative impact on the growth of testing-culture plants, germination decreases, the length of the ground and underground parts of plants is reduced. Conclusions. It has been proved that oil pollution affects the change in the enzymatic activity in Kalmykia soils, and, the greater the concentration of oil contamination, the stronger this change can be traced. Oil-contaminated soils show a strong phytotoxic effect in relation to the plants under study.
EDUCATION FOR STABLE DEVELOPMENT
BRIEF PRESENTATIONS
Abstract. Aim. The aim is to study the species composition of the dragonfly larvae community of the steppe zone of Kabardino-Balkaria. Materials and methods. The research is based on the long-term study (2014-2017) of dragonflies of the Republic. The collection and processing of the materials were carried out using methods generally accepted in entomological research. Results. The article presents data on the composition and distribution of communities of dragonfly larvae, which are an information source for the biological indication of the state of natural aquatic ecosystems and are model bio-indicators for environmental monitoring. In the course of the study, 25 species of dragonfly larvae belonging to three suborders of Zygoptera, Anisoptera and Caloptera were identified. The distribution of larvae in water bodies of the steppe zone and their biotopes is inhomogeneous and is determined by the ecological and biological features of the species. Conclusions. The distribution of dragonflies on water habitats is associated with the quantity and quality of biotopes that are convenient for colonization, the temperature regime, the composition and quality of the natural forage reserve and the ability of the larvae of dragonflies to pass through their entire life cycle and their ecological and biological characteristics.
ISSN 2413-0958 (Online)