Integrated modelling of functional and structural connectivity of river corridors for European otter recovery

摘要: Abstract Connectivity may be structural , based on adjacency of landscape features, or functional how that translates to movement organisms. We present a modelling approach elucidates both aspects connectivity identify vital corridors and conservation priorities in river network. For the dendritic network structure systems, at first graph theoretic is developed model segment scale. To derive connectivity, Bayesian hierarchical species dispersal applied infer influence riparian corridor characteristics colonization. The integration component realized with graph-theoretic measure. With this approach, European otter colonization Loire basin over 25 years modelled basis large datasets land use hydromorphological 17,000 km Channel straightening forest fragmentation are determined key elements connectivity. Road infrastructure distinguished as critical habitat factor, but not so much an obstacle for corridor. Integration posterior probability integrated analysis reveals importance density locates mainly lower parts basin. Synthesis applications Both essential contexts ecological identification recovery. successfully components highlighted downstream well-connected otter.