Mountain lions face increasing welfare challenges as urban expansion fragments their habitat and brings them into conflict with humans and livestock.
Mountain lions in fragmented urban landscapes experience chronic stress from reduced territorial options, increased encounter rates with humans and domestic animals, and the constant navigational challenges of crossing roads and developed areas. Dispersing subadults attempting to establish territories face the highest mortality risk navigating between habitat patches. Genetic isolation causes inbreeding effects that reduce fitness and increase developmental abnormalities in isolated populations. Individual lions habituated to human areas are often lethally removed, creating fear-based management responses rather than coexistence solutions. Wildlife corridors that allow safe movement between habitat patches address both individual welfare and population genetic diversity simultaneously.