The dry lawns of the Rhine Island at Vogelgrun, Chalampé, Petit-landau, Niffer, Kembs and Rosenau are habitats of community interest. In order to avoid the closure of this environment and the disappearance of related species, management actions are necessary. Thus, every year, a light clearing of one third of the lawns will maintain this environment and consequently the species associated with it. In addition, each year refuge areas will be established on each lawn for entomofauna and so that later plant species can finish their life cycle.