S. Muller, INTRODUCTIVE REPORT TO THE SYMPOSIUM BIOD IVERSITY AND GRASSLAND MANAGEMENT - DETERMINISM AND EVOLUTION OF BIODIVERSITY IN GRASSLAND ECOSYSTEMS, Acta botanica gallica, 143(4-5), 1996, pp. 233-238
The paper analyses the different components and levels of perception o
f biodiversity in grassland ecosystems; it then points out the causes
of impoverishment (by intensification or land abandonment) of these gr
assland ecosystems. Their possibilities and limits of conservation and
restoration (passive and active) are precised.