Rocky Barker has a short and interesting blog as to how the presence of roads affects the interaction of predators and prey.

Yellowstone moose use roads to outsmart grizzly bears. By Rocky Barker. Idaho Statesman.

Update: I just found this. It’s the same story with a somewhat different slant on the matter. It’s from Science Daily Study: Moose move toward humans for safety.

10-13. More still on the moose/grizzly bear/roads story. Mother moose know best. Bears avoid park roads, so expectant ungulates stay close. By Mike Stark. Billings Gazette Staff

 
About The Author

Ralph Maughan

Dr. Ralph Maughan is professor emeritus of political science at Idaho State University. He has been a Western Watersheds Project Board Member off and on for many years, and also its President. For many years he produced Ralph Maughan's Wolf Report. He was a founder of the Greater Yellowstone Coalition. He and Jackie Johnson Maughan wrote three editions of "Hiking Idaho." He also wrote "Beyond the Tetons" and "Backpacking Wyoming's Teton and Washakie Wilderness." He created and is the administrator of The Wildlife News.

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‎"At some point we must draw a line across the ground of our home and our being, drive a spear into the land and say to the bulldozers, earthmovers, government and corporations, “thus far and no further.” If we do not, we shall later feel, instead of pride, the regret of Thoreau, that good but overly-bookish man, who wrote, near the end of his life, “If I repent of anything it is likely to be my good behaviour."

~ Edward Abbey

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