Wildlife Corridor Welfare: Connecting Habitats for Individual and Population Health

Wildlife corridors provide habitat connectivity that benefits individual animal welfare alongside population viability and genetic diversity.

Key Facts

Habitat fragmentation is one of the leading causes of wildlife population decline globally
Wildlife corridors are linear habitat features that allow animals to move between fragmented habitat patches
Individual animals attempting to cross fragmented landscapes face elevated risk of vehicle strike, predation, and starvation
Wildlife crossings including underpasses and overpasses dramatically reduce vehicle strike mortality in corridor areas
Genetic diversity benefits from corridors are well established — isolated populations accumulate deleterious mutations over generations
Species including pumas, wolverines, and jaguars are particularly dependent on large-scale corridor networks
Highway wildlife crossings in Banff, Canada, and elsewhere have been highly effective at restoring movement in fragmented landscapes
Urban wildlife corridors — green spaces, river margins, and garden networks — support local wildlife movement through cities

Welfare Considerations

Wildlife corridors matter for individual welfare as much as for population viability. An animal attempting to cross a busy road, traverse an agricultural matrix without cover, or cross an urban area faces acute welfare risks — vehicle strike injury, predation, and exhaustion — that corridor infrastructure reduces. The individual animals saved from road death or starvation through corridor provision benefit directly and immediately. At the population level, corridor connectivity prevents the inbreeding depression and immune dysfunction that arise in isolated populations, reducing long-term disease susceptibility. A welfare-centered approach to landscape conservation treats corridor provision as an individual welfare intervention as much as a conservation tool — because the benefits are felt by each individual animal that moves through safely.

What You Can Do

Support highway wildlife crossing projects in your region through donations and political advocacy
Advocate for wildlife corridor requirements to be included in highway and infrastructure environmental impact assessments
Create garden wildlife corridors by removing or installing gaps in solid fences between neighboring gardens
Support Rewilding Europe, The Nature Conservancy, and similar organizations working on landscape connectivity
Engage with local government about green corridor planning in urban and suburban areas
Drive carefully in known wildlife crossing areas and report dead animals on roads to wildlife monitoring organizations
Learn about which species most depend on corridors in your region and advocate for their specific connectivity needs