Landscape connectivity through wildlife corridors allows animal movement essential for genetic diversity, seasonal migration, and habitat recolonization.
Wildlife corridors address the welfare of populations by enabling the movement animals need to find food, mates, and suitable conditions. Individual welfare outcomes flow from population-level connectivity: animals trapped in isolated fragments face increasing stress from reduced food, competition, and inability to disperse. Road mortality associated with crossing attempts is a direct welfare cost of fragmentation. Corridor design has become increasingly sophisticated, with research informing optimal dimensions, crossing structures, and landscape features for different taxa.