CHANGES IN SPECIES AND SIZE STRUCTURE OF THE ASSEMBLAGE OF OWLS STRIGIFORMES AS A RESULT OF ANTHROPOGENIC TRANSFORMATION OF NATURAL COMPLEXES

With an increase of anthropogenic transformation of the natural environment from relatively natural complexes to total agricultural and recreational-urbanized suburbs, it is revealed that the number of owl species decreases and the species composition of their assemblage changes. In this direction, the species composition as a whole shows an increase in the dominance of its relative lack of natural Paazierre forest to the absolute domination of one species in highly transformed territories, as well as the disappearance of rare species, reducing the representation of forest species and the increase of synanthropic species, and other positive and negative changes in the proportions of different species at various stages of transformation. All these changes in the species composition occur on the background of reducing the total density of populations of owls and differently directed changes in the density of populations of species of owls in the territories of different anthropogenic transformation. It is also found that with an increase of anthropogenic transformation of the natural environment, the size structure of owl assemblage changes significantly in the direction of increasing a proportion of smaller species.

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