Research overview: tiger corridors in the Terai Arc Landscape

The Terai Arc Landscape, stretching along the India-Nepal border, is a flagship for corridor-based tiger conservation, aiming to link a chain of reserves through forest corridors so tigers can disperse between them. This overview surveys research on the landscape's connectivity, including which corridors remain functional, how tigers and prey use them, and where roads, settlements, and agriculture threaten to sever linkages. Studies combine occupancy surveys, genetic sampling, and connectivity modelling to prioritize corridors for protection and restoration, and to plan mitigation such as crossings on highways. Researchers show that maintaining these linkages allows otherwise isolated reserve populations to function as a connected whole, improving genetic health and resilience. The overview frames the Terai Arc as a leading real-world test of landscape-scale tiger conservation, demonstrating both the promise and the difficulty of keeping corridors open in a crowded, rapidly developing region.