This research tracks movement of beavers before and after dyke reinforcements will be carried out along the Durme river in Lokeren. The study primarily uses VHF-telemetery, since earlier research on the Dyle proved this a suitable method for monitoring habitat use in beavers over a longer period of time. Since this method is labour and time consuming, a field test will be carried out using acoustic telemetry alongside VHF to gain additional info on behavioral patterns.