SPECIES BIODIVERSITY IN CHANGING AGRICULTURAL LANDSCAPES - A CASE-STUDY IN THE PAYS DAUGE, FRANCE

In a changing landscape where land abandonment occurs, the spatial dis tribution of species is dependent on their biological characteristics and the pattern of land use. The difficulties in making predictions on the effects of landscape change on biodiversity which arise from land scape changes of individual farms, and from large differences in speci es' dispersal behaviour are emphasised Plants, carabids and spiders ar e used as biological types to exemplify the consequences of abandonmen t in a grassland area.