So far, no methodology to identify priority elements of Belgian biodiversity is available at national level. The Regions manage biodiversity according to their own criteria and priorities. Nevertheless common standards can be developed and therefore it is useful to compare the monitoring methods of the different Regions. The methodology could consider conducting the identification of priority components of biodiversity on the basis of a bioregional approach deciding to choose components of biodiversity which are most at threat of disappearing, or species that are of particular importance for the functioning of vulnerable ecosystems, together with a number of flagship species for Belgium.