Its richness in plant and animal species ( some 12,000 species have been identified ) ranks it second in diversity only to the Danube Delta .
Because of these reasons , the floodplains of the Morava river are among the most biologically diverse ecosystems in Europe .
Morava 's richness in plant and animal species ( some 12,000 species have been identified ) ranks it second in diversity only to the Danube Delta .
Because of these reasons , the floodplains of the Morava river are among the most biologically diverse ecosystems in Europe .