пространственная структура

There are 17 nestbird species at the Volga River riverside’s precipices and slopes of right-bank ravines in the south of Saratov district in 1996–2007 were found. Spatial location of the species along the riversides is determined by sedimentary layers interchange: sands of senoman, chalks of thuron, flasks and marls of santon, flasks of palaeogene, clays of neogene. 

Features of spatial distribution of the European mink in the north territory of the Low Volga region are revealed, the personal field structure and ways of boundaries marking, daily activity and forages composition are investigated

Delphinium pubiflorum grows sparsely in the meadow-steppe forbgrass-shrub community on carbonate chernozem fairly rich soil. Habitat conditions correspond to moderately variable meadow-steppe hydration. The spatial structure of populations of non-uniform: there are a multitude of plants and detached instances; population density was approximately 7–8 plants per 100 m2.