Corridors & Crossings

Coexistence in a changing landscape

Human expansion of roads, housing, and commercial development isolate wildlife and plant populations.

Identifying, protecting connectivity, and establishing habitat corridors and wildlife crossings are cost-effective solutions for:

  • Reducing human-wildlife conflicts, saving lives and money
  • Maintaining migration routes and improving gene flow between populations
  • Increasing greenspace, providing recreational opportunities and connecting communities

This page is designed to provide resources to support conservation corridors awareness and projects:

  • What Conservation Corridors Look Like
  • Corridor basics
  • List of conservation corridor organizations in North America
  • Research, articles, and resources

Defining “Conservation Corridors”: We use the term “conservation” to include all organisms and “corridor” to include intact natural habitats as well as human-made crossings over, under or around obstacles. Terms such as linkages, and networks are also used. We do not promote, or include in our definition, the fragmentation of habitat to “create” corridors.

What Conservation Corridors Look Like (videos)


Learn about different types of corridors and their applications

Natural corridors

Rivers, ridges, and other geological and aquatic features are natural corridors that should be identified and protected.

Constructed corridors: Human-made Linkages

Over and underpasses, as well as fencing and other devices are tools to address coexistence challenges such as vehicle collisions and blocked migration routes.

Connecting Communities

Conservation corridors can be economically viable solutions to specific coexistence challenges in communities. Corridors can provide greenspace, enhancing ecosystem services and quality of life for all residents.


Aerial migrants, such as birds, butterflies, and dragonflies depend on habitat types over broad geographic areas. Conservation of these species extends beyond most political boundaries, including nations and continents.

Conservation from top to bottom

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