Dipl. Ing. Maria-Sofie Rohner is an environmental planner, with a concentration in botany and nature conservation. She is a specialist in the cartography of vegetation and biotopes and a board member of the Berlin and Brandenburg Botanical Association. In 2006 Rohner accomplished the cartographic and analytical documentation of all biotopes and flora and fauna habitats in Tiergarten (with an update in 2011), commissioned by the Federal Land of Berlin as a contribution in preparation of a new  management plan for Tiergarten which combines environmental conservation guidelines with heritage preservation.