Study

Permeability of the Trans-Canada highway to wildlife in Banff National Park: importance of crossing structures and factors influencing their effectiveness

  • Published source details Clevenger A.P. (1998) Permeability of the Trans-Canada highway to wildlife in Banff National Park: importance of crossing structures and factors influencing their effectiveness. Proceedings of the 1998 International Conference on Wildlife Ecology and Transportation, Florida Department of Transportation, Tallahasee, Florida USA, 109-119.

Actions

This study is summarised as evidence for the following.

Action Category

Install barrier fencing and underpasses along roads

Action Link
Terrestrial Mammal Conservation
  1. Install barrier fencing and underpasses along roads

    A study in 1996–1997 along a highway through forest and grassland in Alberta, Canada (Clevenger 1998; same experimental set-up as Clevenger & Waltho 2000) found that underpasses, in areas with roadside fencing, were used by at least 10 species of medium- and large-sized mammals. Over 12 months at 11 underpasses, there were 1,338 detections of elk Cervus canadensis, 538 of deer Odocoileus spp., 373 of coyotes Canis latrans, 97 of black bears Ursus americanus, 77 of wolves Canis lupus, 29 of cougars Puma concolor and six of grizzly bears Ursus arctos. Most visits resulted in completed passages (96–100%, depending on species). Bighorn sheep Ovis canadensis, mountain goats Oreamnos americanus and moose Alces alces were also detected (frequency not reported). Elk, deer and coyotes used all 11 underpasses, black bears used nine, wolves used six, cougars used five and grizzly bears used three underpasses. The study was conducted along 27 km of a four-lane highway. Wildlife movements were monitored through seven cement open-span underpasses, under two bridges over creeks and through two metal culverts. Barrier fencing, 2.4 m high, ran alongside the highway. Underpasses, constructed in 1986–1991, were located in twinned highway sections. Animal tracks were monitored at each end of each crossing within a sand, silt and clay mix (2 × 4 m), every 3–4 days from November 1996 to October 1997.

    (Summarised by: Ricardo Rocha)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust