By Jonathan O’Callaghan from NYT Science https://ift.tt/cS8ridg via IFTTT
Broken by bison, aspen saplings have a tough time in northern Yellowstone
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. Findings…
Read more at nsf.gov
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. Findings…
Read more at nsf.gov
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