Biodiversity & conservation
Habitat Corridor
A connection across the landscape linking habitat patches, allowing species to move, disperse, and maintain genetic exchange between otherwise isolated populations.
Definition
A habitat corridor is a connection across the landscape that links areas of habitat, supporting the movement of species to find resources such as food, water, and mates. Corridors range from small revegetated strips linking two forest patches to continental-scale linkages, and take forms including linear strips, stepping stones of habitat, riparian zones, and underpasses or overpasses across infrastructure.
References
definition and forms
typology and function
Overview
What it means
Fragmentation isolates populations into habitat islands, where small populations risk inbreeding and local extinction. Corridors restore connectivity — the flow of individuals, genes, and ecological processes — and become more critical under climate change, as species need to shift ranges to track suitable conditions. Corridors are species- and process-specific: what connects a frog's world differs from a jaguar's.
How it is used
Conservation planners design corridor networks and ecological connectivity areas; the concept informs protected-area system design, infrastructure mitigation, and 30x30 connectivity targets.
Why it matters
Protecting patches without connections conserves museums, not living systems; corridors are what keep protected areas ecologically functional.
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