This project has sought to investigate the possibility of applying least-cost modelling as a tool for mapping ecological corridors in Danish municipalities. The main objective was to determine if the method was suitable for the municipal context and to investigate the best way of implementing the analysis method. An analysis was carried out using Næstved municipality as a study area and a small network of ecological corridors were delineated by using a habitat suitability map as a cost surface. The network of corridors was evaluated and an uncertainty analysis was executed to investigate the impact of uncertainty in the parameters used to generate the cost surface. The report concludes that the method may be too advanced and resource demanding to serve as a general tool in municipalities, although it may be useful for some more resourceful municipalities. While the analysis sought to model functional connectivity, the possibility is left open that a model based on structural connectivity may be simpler to use and thus more fitting for the planning context in the municipalities.