Methodological basis of the process of integration of scientific knowledge is the interdisciplinary direction of the research which important component is the synergetrics. It plays an important role in the concept of coevolution realization which considers mutual relation of the person and the nature.

Northern part of Caspian sea is the richest on biological efficiency. Rich with biogene elements and an organic substratum of water of Northern Caspian sea render a great influence on a variety of flora and fauna of all Caspian sea. Now researches of elements of an ecosystem of northern part of Caspian sea in the conditions of planned and conducted on a shelf of the sea and sites litoral oil-and-gas production and presence of other elements of an anthropogenous press, are extremely important.

By the degree of negative impact on the biological properties of chernozem heavy metals oxides the following series: CrO3 > CuO> PbO> = NiO. Exhibit greater stability ordinary chernozems, lower – typical, even less - the southern, and the smallest – leached fused. Such a sequence is determined by genetic properties of the studied chernozems – the reaction of soil and the organic matter content.

Pentodon algerinum bispinifrons Reitter, 1894 is pointed out for the first time for Dagestan and Russia. P. idiota coniceps Reitter, 1894 ssp. ressur. stat. n. is restored from synonyms of P. idiota idiota (Herbst, 1789).

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.

The article presents Hydrobiological characterization of marine, brackish water and freshwater fisheries reservoirs of the West-Caspian region and the development of phytoplankton in them.

The work presents an analysis of the ichthyofauna of the Upper Terek, emphasizing different part of the region under consideration. A long-term of skate of sturgeon of larvae is given, characterized the conditions of natural reproduction.

The article gives the historical background of the tribe and clan. We consider a diagnosis of the genus. Given distribution of the species, its definitive and intermediate hosts, life cycle, the localization of the cestode in the host's body. Given morphometric description of the kind.

Monieziosis is widely distributed between agricultural ruminant animals in Azerbaijan: in sheep-57,4%, in goats-25, 4%, in cattle-38, 0% and in buffalos-21, 6%. In summer and winter pastures of the republic there were registered 54 species of the oribatid mites, from them 27 species are intermediate hosts of moniezia. The following species play a great role in keeping of monieziosis invasion in nature: Sch. latipes, Sch. laevigatus, Sch. longiporosus, Zyg. tericola, Zyg. frisiae, Zyg. cognata, Zyg. skryabini, Gal. obvia, Cer. cisalpinus, Op. expansa, O. minus etc. These species are widely distributed in all pastures of the republic, have a big density and are most susceptible to infected eggs of moniezia.

Completely results (morphology, cariology, molecular – genetics) of subspecies Chionomys on Caucasian deserves differences three species: Chionomys gud, Chionomys nivalis, Chionomys roberti. Areal subspecies in Caucasian is very difficult and specif-ic, that connect with landscape and history becoming. Beside, ecology, cariology and molecular-genetics facts tell about our species have monophyletic relationships.

The authors of the article reveal trends of climatic conditions’ changing and variability of hydro-thermal conditions in semi-desert landscapes of Island Tuleny in North-western part of the Caspian Sea, evaluate the different conditions’ contribution and their groups to the temporary structure of semi-desert landscapes, characterize landscape dynamics during different seasons and years.

On the background of long peroral administration of HChCH at the dose of 10 maximum permissible concentrations (MPC) in animals with an acetate ulcer its penetrations into liver increases (10-20%) with the simultaneous rise of defensive-adaptive metabolic processes in it. With an increase of the dose of the administrated pesticide up to 50-100 MPC the aggressive course of ulcer with an increase of the frequency of its penetration into liver (up to 100% in the dose of 100 MPC) and op-pression of the activity of all the dehydrogenases, MAO, strengthening of glycogenolysis, the drop of RNA synthesis in hepa-tocytes are noticed. Simultaneously, the raised activity of acid phosphatase, alkaline phosphatase is saved that testifies to activization of hydrolytic and fibroblastic processes of the defensive nature.

The formula of variety of genus Thuja and its use in landscape gardening is analysed. The shaped variety of Thuja and first of all forms of Thuja western gives ample opportunities of creation of various landscape gardening compositions.

The problems of monitoring and indication of human impacts have been analyzed; crisis areas on the viability and weight of 100 seeds have been identified.

The environmental monitoring of air in the Republic of Dagestan has been made, priority pollutants and critical areas of hu-man impacts have been identified.

They аre аnalysed material influence of the person loads on agricultural lands in Stavropoliskiy region.

The system orthogonal of tectonic break out In sediment Astrakhan arch. Their development is conditioned by exertion planetary scale.