Home – Home – Jornals – Contemporary Problems of Ecology 2008 number 5

Results of the investigation of opisthorchiasis n

The goal of the work is to estimate the mechanisms of activation of the antioxidant system under the oxidative action of endogenous character in the Baikal endemic species Eulimnogammarus cyaneus (Dyb.). The oxidative action was induced by exposing the amphi

The structure of the population and size characteristics of millipedes Monotarsobius curti

The features of the formation of orthopteran communities in the mountains of the South-Western Tadjikistan are described. The results of accounts are presented; the seasonal dynamics of the communities is characterized on this basis. A replacement of the dominant species with an increase in the absolute height is demonstrated. The importance of valleys and slopes at different altitudinal belts in the formation of the communities of orthopteran insects is assessed.

Experimental evaluation of the mass of food withdrawn by the larvae of Siberian moth during their development on larch, Siberian cedar, abies, fir and pine was carried out. The obtained dependencies between the masses of larvae and food withdrawn by them can be directly used to determine the withdrawn food rate of Siberian moth on each of the conifer species in Siberia.

Landscape-ecological an

The major spatial changes in the communities of invertebrates in the grass cover of the North-Eastern Altay and the factors determining these changes are revealed on the basis of multi-year accounts. The strength and general character of the connection between non-homogeneity of population and environment are estimated.

The probability of contacts of the populations of swimming and near-water birds of the North-East of Asia with chemical pollutants is considered on the basis of an

For the entire territory of West Siberia, including its plain and mountainous parts, two maps of population were constructed: for amphibia together reptiles, and for birds. The differences in the spatial differentiation of the communities of these classes of vertebrates between each other and also for the separate and joint consideration of the plain and mountainous territories are demonstrated.

On the basis of the multi-year data, the intra-population and individual variability of nesting dates, number of eggs, oomorphological parameters and success of reproduction are an

Cytogenetic an

In West Siberia, the whole species area of the common shrew (Sorex araneus L.) is divided between the two chromosome races

An inventory of the insectivorous mammal fauna of the Sa Pa area of Hoan Lien Son Nation

We discuss the possibility of using the new modification of live-traps for express estimation of the biodiversity of small mammals. Experimental captures were conducted at the North-East Altai Mountains on the banks of the Teletskoe Lake. The proportions of insectivora and rodents among the animals captured using this method are closer to the results of estimation obtained with ditches than to the results obtained with break-back traps. The proposed method is less time-consuming than capture with ditches. We present the design of trap and recommendations for using the traps.

Communities of insectivorous mammals of the Altay mountains consisting of 4

Changes in the numbers of dominating shrew species

The features of the zon

Quantitative characteristics of the mortality during the autumn and winter period were obtained for common, medium and small shrews (Sorex araneus, S. caecutiens, S. minutus) in the Tver District. The data accumulated during monitoring for 12 years at the permanent lines of live traps were used. An estimation of the relative and absolute numbers in autumn (October, November) and in spring (April) was made. For small shrew, a species with permanently low number, the losses are uniformly distributed from August to April and account for 40,1 % as an average. For common and medium shrews, during the whole period indicated, mortality was 89,3 and 73,6 %; in this situation, mortality during winter (November-April) accounts for 38,2 and 30,4 % of losses, respectively. The level of mortality during wintering depends on the maximal number of individuals in summer and on winter conditions.