The importance of windbreaks for preserving the existence of biota in an intensively utilized agricultural landscape is being assessed in S Moravia. From the botanical viewpoint the basic importance of windbreaks for preservation and dispersal of the autochthonous plant species has not been proved. Results of study of model animal groups (Lumbricidae, Carabidae, Diptera, birds, small mammals), however show that windbreaks represent a suitable environment for numerous animal species.