Miniaylo A. Ecological substantiation of measures for biodiversity conservation of insects-hortobionts in agrolandscapes of Forest-steppe of Ukraine

Thesis on the competition the scientific degree of the candidate of agricultural sciences on speciality 03.00.16 - ecology. - National University of Life and Environmental Sciences of Ukraine, Kyiv, 2011. The thesis is devoted to the conservation solution of a problem of entomological agrobiodiversity. It is established that on an indicator of the generalized species natural resources (index MSA) the condition of biodiversity of investigated terrain of Forest-steppe of Ukraine compounds 31 % from t potential. On this background at 40 % of insects-phytophage of life-form of hortobionts which in the past had the status of constant and dominant in winter wheat crops became hardly numerous that threatens their disappearance. The indicators of species entomological biodiversity increase behind an ecological gradient crops?seminatural-segetalgny Ecotone?seminatural ecosystem and reach the maximum values on the last that is caused by the conforming growth of diversity of phytocenosis. In different seminatural components to agrolandscape level of biodiversity of insects increase with growth of the area to 5 hectares. In the absence of anthropogenic influences the seminatural components of agrolandscapes promote the reproduction of entomological agrobiodiversity. The method of a computer projection of potential losses of a crop of winter wheat which allows land users of various economic categories at field level is developed, farms or administratively-territorial unit estimate operatively economic consequences of a current phytosanitary situation and make the administrative decisions concerning ecology-economic practicability of chemical protection of winter wheat that promote reduction of pesticide load on surrounding environment, agrobiodiversity conservation.