Вплив абіотичних чинників на формування орнітокомплексів певної території

Abstract

The paper is devoted to influence of abiotic factors on the omitocomplexes formation of some area on the base of the Skolivski Beskydy (Eastern Carpathians) and the western part of Volynske Polissia. It is caused by peculiarities of geographical situation of area, its relief, soils, hydrological, climate and other environmental conditions (in mountains it would be additionally an altitude, exposition, steepness etc ), as well as level of anthropogenic pressure. Geomorphology influences mainly by indirection at the bird distribution. Soils may affect directly at the formation of some bird communities. However, mechanical and mineralogical composition of soils, content of the main nutrition elements of plants influence on the bird distribution mainly indirectly, through the topic (type and structure of vegetation: habitats) and trophic (soil invertebrates and vertebrates: feeding base) aspects. Role of climate factor is evaluated also for bird species composition and population of some area.