Center for Transportation and the Environment (CTE)
The Center for Transportation and the Environment (CTE) conducts research, education, and technology transfer that seek to mitigate the impacts of surface transportation on the environment.

Defenders of Wildlife
Defenders of Wildlife is dedicated to the protection of all native wild animals and plants in their natural communities. We focus our programs on what scientists consider two of the most serious environmental threats to the planet: the accelerating rate of extinction of species and the associated loss of biological diversity, and habitat alteration and destruction.

Federal Highway Administration: Easy Ways to Help Wildlife Along Roads
A Texas Department of Transportation Bats and Bridges Study recognizes how bats benefit society by preying on flying pests and crop-eating insects. According to the study, more bats are likely to inhabit culverts in Webb County, Texas, than in any other county in the state.

Federal Highway Administration: Doing the Right Thing: Improving Transportation and Enhancing Ecosystems
It's about connections. It's about the future.
Ecosystems are interconnected communities of living things and the physical environment within which they interact. Preserving and enhancing ecosystems is critical to protecting our diverse biological resources and sustaining our communities and economies that rely on their products.
The ecosystem approach looks at the present and beyond. It envisions future conditions under which ecological, economic, and social factors are integrated.

Second Nature: Improving Transportation Without Putting Nature Second
The United States is approaching a crossroads — unimpeded urbanization may soon collide with the limits of our country’s natural resources. The rate of this urbanization surpasses population growth, and threatens to overwhelm previous victories in environmental protection. Biological diversity — the rich variety of natural species that forms our natural life support system — is in jeopardy.

South Coast Wildlands
South Coast Wildlands is working to maintain and restore connections between wildlands in the Ecoregion, through the South Coast Missing Linkages Project.

Southern Rockies Ecosystem Project
Founded in 1992, The Southern Rockies Ecosystem Project (SREP) is a non-profit conservation science organization working to protect, restore and connect ecosystems in the Southern Rockies of Colorado, Wyoming and New Mexico.

Surface Transportation Policy Project
The Surface Transportation Policy Project is a diverse, nationwide coalition working to ensure safer communities and smarter transportation choices that enhance the economy, improve public health, promote social equity, and protect the environment.

TransForm
TransForm is a partnership of over 90 groups working for a sustainable and socially just Bay Area. We envision a region with healthy, vibrant, walkable communities that provide all residents with transportation choices and affordable housing. TransForm analyzes county and regional policies, works with community groups to develop alternatives, and coordinates grassroots campaigns.

Western Transportation Institute, Montana State University-Bozeman
WTI consists of a broad-based core group of innovative, technical employees who can meet a variety of research, education, and outreach needs in-house. We are improving the rural transportation environment, one solution at a time.

Wildlife Crossings Toolkit
The Wildlife Crossings Toolkit is designed for professional wildlife biologists and engineers faced with integrating our highway infrastructure and wildlife resources.