How 560 kilometres of tweaked fences is helping save Alberta's pronghorn
CBC
A conservation project that spans hundreds of kilometres across southern Alberta is giving a species that was once almost extinct a leg up — or rather, a leg under.
The Alberta Fish and Game Association and the Alberta Conservation Association have wrapped up another season with their Pronghorn Corridor Enhancement Project — changes to fencing that helps pronghorn stay healthier and less vulnerable to predators.
Pronghorn are a horned, deer-like mammal commonly called "antelope," although they're technically not part of the antelope family. They were once abundant across the grasslands of North America, but came close to extinction until large sections of their habitats were protected by conservation efforts. In Canada, they can now be found in southwestern Saskatchewan and southeastern Alberta.
Pronghorn are the second-fastest land animal in the world, next to the cheetah, and are capable of racing at speeds of 50 to 70 kilometres per hour over long distances.
But they're not good at leaping the fences that now crisscross the prairies.
While pronghorn are physically able to jump fences, they prefer to travel under them, according to Paul Jones, senior biologist at Alberta Conservation Association.
"We had an image of a pronghorn that had all its hair removed off the back and it had scarring that looked like frostbite. And we started questioning, well, 'What was that from?'" said Jones.
"We quickly realized that it was from traversing a landscape that's full of fences."
When pronghorn squeeze under fences, they can lose hair — which in the winter can lead to disease and frostbite.
Predators, like coyotes, can also use the fences as a way to prey on pronghorn, Jones said.
So the two conservation groups decided to find a way to help.
They have been working with landowners to replace the bottom strands of barbed wire fences with smooth wire and raise them up by 46 centimetres.
Together, the two groups have completed about 560 kilometres of fence adjustments on public and private land since 2009.
This year, fencing was adjusted around Orion, south of Medicine Hat, and near Writing-on-Stone Provincial Park.
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