For the first time in the study area carried out a comprehensive statistical analysis of child cancer rates in the period from 1991 to 2010 and its forecast for the next 10 years. Determined the dynamics and the predominant forms of locali-zation of child cancer.Also calculated the age structure of morbidity by malignant neoplasms of the child population of Dagestan.

It is shown that tangle and separate arbuscles of tamarisk are principal reasons of environment formation process in arid zones of Northwest Caspian lowland. They form difficult mosaic ecotone relief with various types of a water-salt mode of soils, vegetative structures and animal diversity. The comparative estimation of seasonal changes of humidity of soil, vegetation species richness and efficiency of vegetation, abundance and species richness of small mammal population of bush and opened biotopes of Western Caspian lowland ecosystems is given. Distribution of five basic rodent species density in the space connected with type of vegetative cover and its efficiency is analyzed. The work represents the important functional characteristic of arid soils in Northwest Caspian lowland.

Scales and forms of technogenic infringements of a soil and vegetative cover are revealed. The methods, directed on restoration of pasturable potential are developed on the basis of experimental researches and the scientifically-proved actions. Sizes of the pasturable loadings, which are not overwhelming functions of natural processes, promoting restoration of a vegetative cover on the destroyed grounds are established.

For the first time studied the species composition of ground beetles of coastal and island ecosystems of the Western Caspian. The article provides a comparative analysis of species composition of ground beetles and adjacent areas.

As a result of our research fauna of the islands of the Dagestan part of the Caspian Sea found 69 species of the Noctuidae (Lepidopte-ra, Noctuidae), of which 57 species belong to the island Tulenei, 39 species belong to the island Chechnya, 20 species belong to the island Nordovy.

For the first time an analysis of bioecological potential bee in their areas of settlement in the territory of Dagestan is made. Designed a scientifically sound system of measures for the conservation and restoration of biological diversity of bees in the Republic of Dagestan.

The article researches fatness of grey mullets during their reproductive cycle. It was established that in spring fat depot is practically absent in grey mullets body-cavity. In summer accumulation of energy substances takes place. In August most of the examined fish had fatness of 2-3 points, but in September the number of fish with minimal fatness increases. Large content of fat in the body-cavity of grey mullets (female) is found in the prime of ovogenesis. In the IV stage of ma-turity, when intensive trophoplasmic growth of acolytes takes place, fatness sharply decreases and grey mullets come to the prespawning period practically with waste fat depot. Accumulation of lipids in muscular tissue of grey mullets as against fat depot in body-cavity takes place independently of maturation of ovary. 

An analysis of information from literary sources for the last 132 years together with the data of the author's records and interviews show presence of three crane species on the territory of Dagestan: the Siberian crane, the common crane and the demoiselle crane. Periods and routes of passage, stays and approximate number of migrating and nesting cranes have been studied. To maintain the crane population on the territory of the republic it is necessary to conserve natural landscapes in the demoiselle crane habitats and in places of temporary stay of the common and Siberian cranes; to establish resting places and enrich forage reserve in areas of the common crane concentration on flyways; to create a net of artificial pools (on the basis of artesian boreholes) in semi-desert steppe landscapes of northern Dagestan in order to conserve and control demoiselle crane population; to promote explanatory and educational work among the local population for the purpose of crane conservation on the territory of the republic.

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.

The article presents ecological-faunistic review of grasshoppers’ fauna of the Republic of Dagestan.

Annotated list of spiders species from the seaside and island territories of Northern Dagestan, based on the original material. At the present time 132 species from 20 families are recordet in this region. There are illustrated descriptions of new species Gnaphosa deserta Ponomarev et Dvadnenko, sp. n., similar with G. rufula (L. Koch, 1866) and Ozyptila dagestana Ponomarev et Dvadnenko, sp. n., similar with O. simplex (O. Pickard-Cambridge, 1862) and males Berlandina apscheronica Dunin, 1984, Pardosa jaikensis Ponomarev, 2007 and Tibellus utotchkini Ponomarev, 2008.

The main aim of the article is to study the reproduction and study of gametogenesis (ovo-and spermatogenesis) of many valuable as commercial and of yet not covered by the fishery of species of fishes for various reasons from different taxonomic groups with a different biology. The study of gametogenesis of representatives of different ecological groups (freshwater, marine) allowed not only to establish the regularities, but also reveal features of their proceeding in an ecological conditions of water bodies that have changed due to human influence, and also to note the adaptive changes and to correlate processes occurring in different levels of life.

It was studied the species composition and habitat distribution of carabids in Irganaysky basin of Dagestan. It is considered the features of ecology and seasonal dynamics of the activity of single dominant species.

Ecological-geographical characteristics of the 292 species and 17 subspecies of lamellicorn beetles of the south of Russia are consi-dered. 3 zoogeographical complexes with 6 groups and 7 subgroups of an area are discharged; 2 ecological groups with 7 basic com-plexes; 4 groups in relation to humidity. Distribution of the lamellicorn beetles in 15 physiographic areas are tracked: 3 basic groups of areas are discharged, conterminous to three basic zoogeographical groups of Tethis complex (Setian, Scythian and Mediterranean). The zoogeographical analysis of the fauna of lamellicorn beetles of region with the count of discharged areas are given.

Sheeping is the oldest and most important part of the agriculture of the Chechen Republic. It’s necessary to pay great attention to diseases and especially helminthes to solve the problems of sheep development along with the actions for forage reserving and sheep breeding. The helminthoses are wide spread among agricultural animals. They cause productivity decrease and in some cases even fatal death of animals. 

Survival of the ovums, of the larvas and of the invasion larvas of strongylates in environment depends on many conditions. This biological process was investigated by us in experimental conditions.

More than 18.867 heads of agricultural animals were analyzed during last 20 years in the different ecologo-geographical zones: Sheki-Zagatala, Guba-Khachmaz, Ganja-Gazakh, Kura-Araz lowland, the Lenkoran natural area and Absheron-Gobustan semi desert zone. Analysis showed that monieziosis iz widely distributed among agricultural animals. The infection of ruminant animals is occurred all the year round under Azerbaijan conditions as the cattle is pastured the whole year long. Intensity of infection is occurred in spring and autumn. Because the intermediate hosts of the monieziosis - the oribatid mites actively migrate on the grass in this period.

Death rate from illnesses of cardiovascular system makes more than half of all death, being one of principal causes of a considera-ble gain of death rate in Russia. Causing pressure of all systems of a human body, extreme climatic, geophysical and anthropogen-ous factors have adverse an effect on health, adaptive reserves exhaust, promote acceleration of formation of various diseases, first of all, cardiovascular system. To ecologically unsuccessful regions Russian Federations for which high level of disease is characte-ristic, the Republic Dagestan concerns also. The purpose of the given work was complex ekologo-geographical research of compo-nents of the natural and anthropogenous environment of areas and cities of republic Dagestan for dependence revealing between quality of environment and dynamics of disease illnesses of system of blood circulation.

The Purpose of the given work was complex ecologo-geographical research of components of the natural and anthropogenous environment of areas and cities of republic Dagestan for dependence revealing between quality of environment and dynamics of disease ЦНС. Among the reasons, making negative impact on a state of health of the population and the demographic situation, an essential role is played by an ecological component. Ecologically unsuccessful region in which adverse effect sources are present at environment implicitly – Dagestan. There is a certain dependence of a state of health of the population on diseases of the central nervous system and a state of environment. Results of research will help to develop the scientifically-proved recommendations for preventive maintenance БСК, actual researches for area which can be used for carrying out of more effective monitoring of a state of health of the population.

The allergic reaction on monoallergens from Nocardia and Rhodococcus in experimental animals, sensitized by Micobacterium, is discovered and, on the contrary, that shows on close relacionship of antigenic structure of these microorganisms.

The article gives rabies's history in Russia in the world. Mortality of animals against rabies and how it spread in the mountainous country are characterized.

The chemical composition of the fruits of Crataegus pentagyna Waldst et Kit against the habitat is studied. The variability of the fruits of the influence of environmental factors.

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

Morphological signs of vegetative bodies (leaves, цветоносы) and seeds are defined by influence of conditions of environment on their quantitative characteristics and reproductive abilities. Аdaptation of plants to local conditions of environment is connected with formation at them specific functional signs.

The first monography considering systematization of family Plantaginaceae, work «Esquise de l’historie naturelle des Plantaginees» is. The morphology generative and vegetative bodies of plantains is widely enough considered in the monography «Die Plantagi-neen in Bezug auf die naturhistorische Spezies». In modern researches of systematization of plantains of A.B. Shipunov allocates nomenclature specifications of names of set of kinds, and also intraspecific and intrapatrimonial groups of plantains; researches of systematization of separate groups; research of flora of various regions and the description of new kinds. Sources of formation of the first scientific collections on flora of caucasus had I.Gildenshtedt's Petersburg academicians (Gűldenstadt, 1787, 1791), Of this year Gmelin (Gmelin, 1784), P.S.Palas (Pallas, 1789-1790) (Shcherbakova, 1979) and I.P.Falk (1773).

The article analyzes the changes in the hydrothermal conditions within the pricaspian littoral plains accumulation and denudation-accumulative in places aeolian landscapes saltwort, saltwort-sagebrush deserts and semi-deserts in light chestnut soils based on data from weather stations "Makhachkala" for years 1945-2005.Tendencies of changes in temperature, precipitation, and hydrothermal coefficient and coefficient of moisture are shown. Tendency of modern fluctuations suggests that the climatic conditions of the last period contribute to the development of dry steppes and significant deviations from the conditions of the previous period do not occur.

The article presents the assessment of assimilative capacity of the license area “North Caspian area” in relation to petroleum products and polycyclic aromatic hydrocarbons, implemented using the new "synoptic" method.

The article presents the state forest fund of the Republic of Ingushetia. Woods of Ingushetia perform riparian, soil protection and other functions. For this category of protection forests classified as forests, along rivers and their tributaries. Age of main forest species of the forest fund of the republic is 160 years old, at the age of razbezhka tree species is 20 years.