Broken by bison, aspen saplings having a tough time in northern Yellowstone

PHYSorg
Aug 29, 2023, 3:00 pm159 pts
In northern Yellowstone National Park, saplings of quaking aspen, an ecologically important tree in the American West, are being broken by a historically large bison herd, affecting the comeback of aspen from decades of over-browsing by elk.

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