The aim pursued by this Directive is to ensure biodiversity through the conservation of natural habitats and of wild fauna and flora in the territories of the Member States. Pursuant to this Directive, measures shall be designed and undertaken in order to maintain or restore, as the case may be, natural habitats and species of wild fauna and flora. To this end, a coherent European ecological network of special areas of conservation shall be set up under the title Nature 2000 (art. 3). Such netwo