26 research outputs found

    THE MATERIALS TO SPECIES COMPOSITION OF TESTACEOUS MITES (ACARI, ORIBATIDAE) OF IRGANAY ARID HOLLOW OF THE INTERNAL MOUNTAIN DAGESTAN

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    As a result of the reseach and the laboratory processing of the material at the territory of Irganay hollow of Internal mountain Dagestan there hare been registered about 101 species of testaceous mites (acari, Oribatidae), that belong to 66 genera. 9 species have been indicated in Dagestan fauna for the first time, and 14 species hauen,t determined at au yet.. In addition, two species were found (Oribatella abdurachmanovi [11], Oribatula (Zigoribatula) caspica [18]), described as new to science

    A REMARKABLE FEATURE OF BIODIVERSITY OF THE COASTAL, MARINE AND ISLAND ECOSYSTEMS OF THE CASPIAN SEA. A NEW LOOK AT THE AGE OF ISLANDS AND LEVEL MODE

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    Aim. During the 2009-13 period of time joint efforts of eco-eographical faculty of Dagestan State University and the Institute of Applied Ecology of the Republic of Dagestan made large-scale comprehensive studies of flora and fauna of coastal and island ecosystems of the Middle Caspian. The program of the expedition involves the establishment of species diversity of animal and plant life of the population of the study area. The main purpose of this article is to establish the reasons for the high proportion of the indigenous component of the aquatic biota and causal interpretation discovered during research expeditions of the endemism among taxa of an island fauna and flora.Methods. Expedition research covered the western and eastern coast of the Middle Caspian, and the major islands (Chechen Island, Tyleniy, Nordova, Kulaly) of this part of the sea. In faunal studies traditional methods, such as hand-picking, mowing, light traps with quartzemitters, ground traps were used. A new version of the field collecting entomological material was tested: Barber trapsin combination with LED lamps. The last only switched on at night.Location of traps recorded by GPS-navigator. Traps Barbera functioned throughout the expedition period. Removal of the collected material was performed at intervals of 3 days. The need for a causal interpretation of the contemporary configuration of habitat in the species composition of the biota of the study area, has led us to develop a hydrodynamic GIS model of the Middle and North of the Caspian sea. To solve this problem prepared three-dimensional model of the bottom of the Middle and North of the Caspian sea in GIS "Map 2011". The base level of the Caspiansea in this simulation adopted the mark -28 m Matrix, ensuring the functioning of the hydrodynamic GIS model based on approximately twenty thousand marks depths.Results. According to the results of pre-processing of field data set, the General picture of the floristic (higher plants) and fauna (some groups of invertebrates) species diversity (table. 1). It should be emphasized that the biota of the Islands of the Middle Caspian, in General, consists of taxa widely distributed in the Eastern and, to a lesser extent, the Western coast. There are also species the area which goes far beyond the region of the Caspian sea. However, in table 1 preliminary faunal and floral evidence suggests that in the modern biota of the Islands of the Caspian sea found also new to science species, at present unknown in the continental part of the Caspian sea. It taxa species or subspecies rank. That said, modern faunistic or floristic status of this group of species should be considered endemic. Main conclusions. Kind of part of the Caspian autochthonous fauna is largely because of its complex origins. A catastrophic reduction in the area of water surface of the sea takes place with a gradual decrease of its level before -39 m Middle Caspian, since the level of -39 m and -50 m retains approximately the same configuration of the water surface. The decline -100 m and even up to -150 m not accompanied by a catastrophic decline in water surface area of the Middle Caspian sea. Therefore, it should be recognized that the conservation and co-evolutionary development of the unique fauna of the Caspian sea, an important buffer role played by the Middle Caspian. Thus, a causal interpretation of the autochthonous trends and, as a consequence, a high level of endemism taxa of aquatic biota is not straightforward. A different situation with understanding and explanation of the pattern of endemism coastal and especially island taxa. Modern faunistic or floristic status of the new species should be considered endemic. In this group of species identified taxa of species and subspecies rank. The formation and evolutionary stabilization of these taxa requires a time sufficient to cause diagnostically significant features. And this is possible only with the existence in the waters of the Middle and North of the Caspian sea island sushi throughout the Holocene (even during periods of high sea level). Of course that modern configuration of habitat taxa island biota of the Middle Caspian sea due to the magnitude and time duration of transgressive-regressive cycles of the sea and the reasons that determine the direction of these events. In accordance with the nature of these cycles has been a change in the species composition and structural organization of coastal and island communities

    The basic ecological features of the benthos Northern Caspian

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    There are resulted the ecological bases of a biodiversity saving of the sea-bottom organisms of the Northern Caspian

    Optimization of Personnel Management in Banks and Capacity Building Based on Foreign Experience

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    This article deals with the management of banks and their capacity building on the basis of foreign experience, further optimization of the industry. Foreign experience in capacity building will also be considered

    Optimization of Personnel Management in Banks and Capacity Building Based on Foreign Experience

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    This article deals with the management of banks and their capacity building on the basis of foreign experience, further optimization of the industry. Foreign experience in capacity building will also be considered

    Strengthening of the weld-fabricated connections of reinforcement of class of a500s executed on a steel protective staple-strap

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    In this work examined questions of strengthening of the weld-fabricated joints of working reinfor of class of A500S executed on a steel protective staple strap

    Ecological prognosis modelling of benthos state in the Northern Caspian Sea

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    There’s made an attempt in the work to estimate the bentos population of the Northern Caspian Sea by mathematic modelling methods. At use of the given method probably considerably to improve the forecast of the general admissible fishes in this area

    Characteristics of benthos of the North-eastern Caspian Sea, technology of its recovery and impact of the oil and gas extraction on the environment

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    In the article is in details considered the technology of investigation and an oil recovery in the eastern part of Northern Caspian Sea. It is shown that the most negative influence will test the benthos of the water area. Materials on structure, seasonal dynamics and biomass of groundorganisms of eastern part of the Northern Caspian Sea are resulted

    ANALYSIS OF THE SITUATION AND INVENTORY OF ACTIVITY ON INCREASE OF CAPACITY BUILDING OF CONSERVATION OF BIODIVERSITY IN THE REPUBLIC OF DAGESTAN

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    Work performed under the GEF / UNEP "Self-assessment of the needs of national potential to manage the global environment" (2009). We present the problems and offer measures for conservation of biodiversity in Dagestan Republic

    Mathematical model of fish-productivity estimation in the Northern Caspian on the annual primary production of phytoplankton

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    In the work there is presented mathematic model of counting the fish catching by measuring the seasonal primary production of phytoplankton of the Northern Caspian. The model has shown its representativeness and is offered to use to specialists
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