Wildlife Crossing Structures and Fencing
Ever wonder if animals really use crossing structures to traverse highways?
There is a “learning curve” for animals to begin using wildlife crossings. For wary animals like grizzly bears and wolves, it may take up to five years before they feel secure using newly built crossings.
Mountain Lions and Black Bears
Researches have learned that different wildlife species prefer different types of crossing structures. Grizzly bears, elk, moose and deer prefer wildlife crossings that are high, wide and short in length, including overpasses. Mountain lions and black bears prefer long, low and narrow crossings.
Highway fencing in Banff National Park has reduced wildlife-vehicle collisions by more than 80 per cent and for elk and deer alone, by more than 96 per cent.
Elk were the first large species to use the crossings, even using some while they were under construction!