Estimated shifts of forest communities and tree species during changing climate.

Abstract

Our study reflects a multiple approach. On the basis of native tree species estimated response we analyzed the probable rearrangement of our native forest communities. Theoretical estimations were synthetize with result of field work tree mortality and regrowth examination. From the point of view of potential invasion biology, low risk tree species were chose for possible substitution of our native species. In case of native and invasive species country scale databases, in case of substitute tree species european scale were used for predict future potential distribution. On the basis of National Forestry Database potential natural forest community database of forests were created for the present and future prediction also. According to our results, case of forest and forest steppe habitats high species and structural diversity (fragmented forest stands with grasslands and shrubs) can report higher adaptation. Usage of non native tree species only be possible if new circumstances are not suitable in any case for native habitats and taxa.