The kofficients of its rang carrelation the other flora types are calculated. There are made the conclustions about the influence of the nearly flora types according to the taxonomic composition of the Dagestan coastal lowland.

In flora of Tersko-Kumsky lowland are discharged 15 component elements. The compound таксонов on these component elements is compared. The conclusion is drawn on a relative youth of investigated flora.

Aim. The study of the vegetation of the island seal under the influence transgressive-regressive fluctuations of the Caspian sea Methods. Collection of field data was carried out routing and forwarding method. To collect and herborization plants used by traditional equipment necessary for floral studies. When identifying plants in laboratory conditions used stereomicroscope MBS-2 and field telescopes with 8-fold magnification. Results. As a result of changes of the Caspian sea level is the transformation of the vegetation and soils of the Islands. During the transgressive cycle of development is shifting xerophytes halophytes and hydrophytes, automorphous soils hydromorphic. During the regressive cycle develops a reverse trend. Main conclusions. Succession from sagebrush-solenkovoy vegetation to wormwood, and then to sagebrush-grass or grass-sagebrush are amid higher hypsometric level and reduce the salinity of the soil substrates

Aim. Analysis of the over all spectrum of life forms of the flora of coastal ecosystems of Dagestan and structural variability of the spectrum indifferent types of plant communities. Methods. The species composition of plant communities and their structural and dynamic features have been determined according to biomorphological indicators during the research and post-processing of the collected material. Based on system of Raunkiera K. (1934) there have been identified five major biomes (fanerofity, hamefity, hemicryptophytes, cryptophytes, terofity) of the flora of coastal ecosystem sof Dagestan, without any further specification. Results. Hemicryptophytes numbering 437 species or 43.52% of the total species composition have been dominated in the flora of coastal ecosystems of Dagestan. In second place terofity (388 species, or 38.64%), the third cryptophytes (80 species or 7.97%). Fanerofity and hanefite are respectively 6.57% and 3.68%. Thus, herbaceous species account or 905 species, or 90.13%. Trees, bushes and shrubsaccountfor a totalof 103 species, or 9.87%. A fairly large percentage of Trofimov can be explained by participation in the studied flora of weedy annuals. Main conclusions. By dominant, similar to the total spectrum of life forms of flora, the position of hemicryptophytes and Trofimov semi-desert and dry steppe plant communities are zonal and climatically determined for this area.

In article data on specific of sort Tithymalus in the North Caucasus are resulted. Geographical diffusion of its kinds on flora areas is analyzed.

Aim The identification of the species flora of Northwest islands of the Caspian Sea.Methods. The collection of useful material were implemented by route-forwarding method. For collect and herbarization of theplants were used the traditional equipments necessary for fioristic studies. For identifying plants in the laboratory conditions were used by binocular MBS-2, and in the field conditions were used by magnifiers with eight-fold increase.Results. Flora of the islands of the Northwest of the Caspian Sea counts 269 species of higher plants, belonging to 49 families and 186 geniuses: the Seals – 32 families, the Nordova – 26 families, 57 geniuses, 65 species.Main conclusions. All the leading families of the islands are specific for Iran-Turan and Mediterranean of floristic areas. Also shared with the Central Asian deserts are families Tamaricaceae, Frankeniaceae, Elaeagnaceae, Apiaceae, Boraginaceae, and the geniuses Halocnemum, Halopeplis, Suaeda.

Questions on formation of modern geomorphological structure and flora of Mountain Dagestan are considered.

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 Caspian sea 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 article dealt with the possibilities of the methods of geoinformation mapping to study peculiarities of the Islands Chechen and Tuleny. Also in the article presents a technique of drawing up of digital base maps and the creation of the base of thematic layers to create a geinformation system.

The article summarizes the different approaches to the explanation of fluctuations in the level of the Caspian Sea and the mechanisms of formation of the islands and the accumulative banks of the Northern Caspian. Also in the article presents data on the taxonomic composition of the biota which indicate the possibility of the existence of islands even in the periods of highest level during the Holocene.

Abstract. Information on some new species to Dagestan flora, recently revealed during field investigations is presented.

The article analyzes developed by the Institute of Applied Ecology of the Republic of Dagestan forecast maps simulate possible scenarios of oil slick movement after 1, 3, 5, 10, 15, 20 and 30 days after the accidental spill with two initial conditions: volley emission 1,500 tons of crude oil on the sea surface and th e release of 1,500 tons of oil during the first day on the surface.

In the article results of ecological analysis of sand plants (psammophytes) of coastal ecosystems of the seaside lowland of Dagestan Republic are presented.

In article preliminary results таксономического a diversity of flora of delta of Terek are brought. 791 kind from 410 genera and 105 families is revealed. From species diversity of flora 43 таксона are included in federal and regional red books.

It is found out 9 florotsenotypes which include 15 florotsenoelementen. The results of this comparison of tacsonomical structure of florotsenoelementen by means of factor of the similarity of Syorensena-Chekanovsky (Кsc) are given.

The article describes the main provisions of the environmental and conservation policy of the LLC "CentralCaspianOil& Gas" It is proposed provided for the development of the "Central" compensation expense to direct on the implementation of specific environmental projects.

The article presents phyto-geographical analysis of the flora of coastal ecosystems of the lowland Dagestan. Found 24 geographical elements. Provides quantitative and percentage of geo-types and geo-elements.

The article analyzes developed by the Institute of Applied Ecology of the Republic of Dagestan forecast maps simulate possible scenarios of oil slick movement after 1, 3, 5, 10, 15, 20 and 30 days after the accidental spill with two initial conditions: volley emission 1,500 tons of crude oil on the sea surface and th e release of 1,500 tons of oil during the first day on the surface.