30 research outputs found

    ASSESSMENT OF BIODIVERSITY OF CARABID BEETLES (COLEOPTERA, CARABIDAE) OF THE TSHETSHEN ISLAND IN THE СASPIAN SEA

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    Aim, material. Biodiversity of carabid beetles (Coleoptera, Carabidae) is studied for the Tshetshen Island in the Caspean Sea based on examination of 32799 adults belonging to 123 species collected during two seasons.Results. Five collecting sites on the Tshetshen Island were sampled and compared with data from the Nordovyi and Tiulenyi islands as well as from coastal areas of Dagestan. Carabid species composition of the Tshetshen Island differs in having a higher fraction of desert taxa. In this respect, it resembles more that of the Middle Asia and Kalmykia. Some species, common in the mainland, are not found on the island. Rank-abundance distributions, biodiversity indices and effective numbers of species were used to quantitify differences among collecting sites. In most cases, the data obtained fit the best to the Zipf-Mandelbrot distribution. Numbers of carabid species in sites ranged from 45 to 89. Despite of variation, the richness indices are shown to be significantly lower for the Tshetshen Island. This conclusion was confirmed using rarefaction curves. Decomposition of γ-diversity into its α- and β- components in terms of effective numbers of species has shown that α-diversity of carabids in mainland areas exceeds that of the Tshetshen Island only marginally while β-diversity is significantly higher. Cluster analysys of distance matrices has shown that the carabid assemblages of the Tshetshen Island are the most poor and specific, those from the coastal areas – the most species-rich while those of the Tiulenyi and Nordovyi islands are intermediate.Conclusion. Carabid assemblages of each island in the Caspian Sea may be considered as a rather randomly impoverished subset from the regional species pool of the Middle Asia and Caspian lowland

    Исследование роли полиморфных вариантов генов цитокинов в развитии бронхиальной астмы в Республике Башкортостан

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    Summary. Asthma is one of the most common, severe and debilitating multifactorial diseases resulting from complex interaction between genes and environ mental factors. The aim of the present work was to analyze the association between cytokine gene polymorphisms and development of asthma in population of the Republic of Bashkortostan. A total of 638 patients with asthma and 366 healthy individuals were recruited in our investigation. In summary, the study of cytokine gene polymorphisms and genegene interaction suggested an important role of TNFA, IL4, CCL11 and IL13 genepolymorphisms in the development of asthma in Bashkortostan population.Резюме. Бронхиальная астма (БА) является одним из наиболее распространенных, тяжелых и инвалидизирующих многофакторных заболеваний, развивающихся при тесном взаимодействии генетических и средовых факторов риска. Целью настоящей работы явился анализ ассоциации полиморфных вариантов генов цитокинов с развитием бронхиальной астмы в Республике Башкортостан. Материалом для исследования служили образцы ДНК 638 неродственных индивидов, больных БА, и 366 практически здоровых индивидов контрольной группы. Проведенное исследование полиморфных вариантов генов цитокинов (IL4, IL4RA, IL1B, IL1RA, IL10, IL13, CCL11, TNFA) и межгенных взаимодействий показало, что полиморфные варианты генов цитокинов TNFA, IL4, CCL11 и IL13 вносят вклад в формирование генетической предрасположенности к БА в Республике Башкортостан

    ENVIRONMENTAL AND PATHOGENETIC BASES OF FUNCTIONING OF PARASITIC SYSTEM FORMED BY TRICHINELLA (TRICHINELLA RAILLIET, 1895)

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    Aim. The aim is to study the environmental and pathogenetic bases for the functioning of the system formed by the parasite Trichinella (Trichinella Railliet, 1895) in the Southern and North Caucasian Federal District of the Russian Federation.Methods used. We used comparative and historical, comparative and geographical methods, epizootic survey, statistical processing and data analysis. To detect and identify Trichinella we used microscopic and biochemical methods, as well as the methods of enzyme immunoassay (ELISA) and polymerase chain reaction (PCR).Results. We present the data on the spread of trichinosis, environmental pathogens, ways and factors contributing to the infection of humans and animals that are susceptible to the parasite. We also note epidemiological, epizootic, social and economic significance of this disease.Conclusions. We analyzed the relationship of environmental and pathogenetic factors determining the functioning features of the system formed by the Trichinella parasite. We also attempted to explain the results that can be used to improve programs for prevention and control of zoonoses

    ECOLOGICAL AND FAUNISTIC REVIEW OF COCCINELLIDAE (COLEOPTERA, COCCINELLIDAE) IN THE REPUBLIC OF DAGESTAN

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    Aim. The aim of the study is to conduct ecological and faunal studies of coccinellidae in Dagestan as well as to consider the chorologic, trophic and phenological aspects in connection with the peculiarities of the environment.Materials and methods. As the basis for the research we used the materials obtained by the authors from 1999 to 2016 in various parts of Dagestan. We also conducted expeditions, stationary and semi-stationary studies using traditional methods of entomological research.Results. Inventory of coccinellidae fauna in Dagestan allowed identifying 27 species from 18 genera. It also revealed multiple and rare species. We carried out an analysis on distribution of the species in the high altitude range; identified environmental groups by biotopic preferendum: xerophyllous, mesophyll meadow-steppe, mesophyll forest, and Hygrophila and polytopic species; according to trophic adaptation: Aphidophages, Coccidophages, Mycetophages, Entomophages and Phytophages; We held a zoogeographical analysis of coccinellidae of Dagestan and according to habitat type, 8 zoogeographic groups were identified; We conducted phenological observations of the study sites, stages and timing of winter and winter dormancy, the beginning of mating, egg-laying, the duration of certain stages, the number of generations and other features.Conclusion. This research represents the first comprehensive summary of ladybugs (Coleoptera, Coccinellidae) of Dagestan and includes the findings of the composition study, ecological and zoogeographical aspects of coccinellidae fauna of the study area

    MATERIALS TO COGNITION OF FAUNA OF THE WEEVILS OF THE GENUS SEUTORHYNCHUS (COLEOPTERA, CURCULIONIDAE) OF THE NORTH-EASTERN CAUCASUS

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    As a result of studying fauna of beetles-weevils of family Ceutorhynchus of North-Eastern Caucasusare 68 speciesrevealed. Bioecological features of the species are presented, data of distribution and the analysis of the received materials are given.</span

    MATERIALS TO COGNITION OF FAUNA OF THE WEEVILS OF THE GENUS SEUTORHYNCHUS (COLEOPTERA, CURCULIONIDAE) OF THE NORTH-EASTERN CAUCASUS

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    As a result of studying fauna of beetles-weevils of family Ceutorhynchus of North-Eastern Caucasusare 68 speciesrevealed. Bioecological features of the species are presented, data of distribution and the analysis of the received materials are given

    BIOECOLOGICAL FEATURES OF GROUND BEETLES OF GUMBETOVSKY DISTRICT OF DAGHESTAN REPUBLIC

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    Ground beetles of the Gumbetovskiy area are studied. For the first time for the territory there are defined 95 species of the beetles related to 28 genus. Bioecological features of the species are presented and the analysis of the received materials is lead

    ANALYSIS OF TURANIAN SPECIES OF WEEVILS OF DAGESTAN

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    Abstract. Turan centre is one of the most important and ancient centres of formation of fauna of arid regions, which had a noticeable impact on the genesis of Coleoptera fauna in the Eastern part of the Greater Caucasus. 45 species of weevils of Turan origin were found in Dagestan, regularities of their distribution and trophic specialization were studied, the most likely ways of their penetration to the Caucasus were identified. Chorological analysis of species and their food plants showed that migration of beetles and their food plants in the Caucasus is connected
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