Ecological-taxonomical analysis of collembolans of the northeast of Uzbekistan

Paper is devoted to the ecological and faunistic analysis of the collembolans unit of the Northeast region of Uzbekistan. In the agrocenoses of apple orchard, wheat and surrounding ecosystems, 40 species of collembolans have been identified. Of these, 29 species were found in agrocenoses (apple orchard and wheat), and 40 (in natural communities). We observed the same pattern in a huge population density in the cenoses studied. It is significantly more in natural communities (12386 copies per 1 m2 of soil) as compared with agrocenoses (6980 copies per 1 m2 of soil). The horizons of the surface layer (10-20 cm) of soil are most densely populated by collembolans.