These programmes now cover some 3 100 ha, a figure well below the established target. The PNPN calls for a gradual increase in lands under biodiversity contract to 5 000 ha by 2011. The communes were inspired by a variety of motives: protecting their countryside, supporting efforts at the national and European levels to protect species and natural habitats, and contributing to the sustainable development of Luxembourg. Each commune has a voting representative on the inter-communal management committee.