Urban wildlife corridors provide essential connectivity between fragmented green spaces, enabling animal movement, genetic exchange, and population resilience in cities.
Urban wildlife connectivity is simultaneously a conservation and welfare issue. Animals attempting to move through highly fragmented urban landscapes face elevated road mortality, territorial conflict at population edges, and reproductive isolation that reduces genetic diversity. Individuals lost to these pressures represent welfare harms at the individual level and population-level consequences. Urban corridor creation is remarkably cost-effective relative to other conservation interventions because it leverages existing green infrastructure including gardens, parks, and waterways. Individual householder actions including garden hedgehog highways create measurable wildlife connectivity at population scale.