Research overview: protected-area connectivity and isolation

Individual protected areas are often too small to hold viable big cat populations on their own, making connectivity between reserves critical. This overview surveys research on how isolation affects carnivore populations in protected areas and how maintaining linkages mitigates the genetic and demographic risks of fragmentation. Studies document inbreeding and decline in reserves cut off from neighbors, and recovery or stability where dispersal between reserves continues. Researchers use landscape genetics and movement data to identify which reserves remain connected and where corridors must be protected or restored. The overview emphasizes that a network of connected reserves functions far better than the same reserves in isolation, supporting the shift from thinking about single protected areas toward planning whole connected systems. It matters because the long-term persistence of wide-ranging cats depends on protected areas working together as a network rather than as isolated islands.