Kozlovsky M. Bioindication properties of the phytonematoda communities in the terrestrial ecosystems of Carpathian region.

The objects are of the phytonematoda communities in the terrestrial ecosystems. The aims are to study of structure-functional organization of the nematoda communities within primary and secondary biogeocoenosa in the terrestrial ecosystems as an element of soil zoocenosis and to detect of their bioindicator properties. The methods are zoological, geographic, biogeocenology, ecosystemological, statistical. There is definition of the "nematoda complex" concept concretized and classification of such complexes is conducted by functional criteria. The methods of estimation of the changes in functional organization of soil nematods in secondary ecosystems comparing the primary ones are elaborated on the base of indication significance of nematoda communities. It consists also an estimation of sanitary status of the ecosystems. It is shown that there are principal differences between the ways of energy consumption by nematoda communities in primary and secondary biogeocoenosa. The main directions for a forming of the non-phytopatogenous nematoda complexes in secondary forest biogeocoenosis are defined. The ways to preservation of natural structural and functional phytonematoda diversity are grounded as well as ways to increase resistence and productivity of the forest ecosystems. The spheres of use are forestry, bioindication and training courses.