Aspen, elk, and fire in the Canadian Rocky Mountains
Trembling aspen (Populus tremuloides) is failing to survive through the sapling stage (2 to 4 m) to tree size in many national parks in western North America. Hypotheses for aspen decline include reduced burning, climate change, high herbivory by native ungulates (mainly elk (Cervus elaphus)), or...
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| Language: | English |
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2009
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| Online Access: | http://hdl.handle.net/2429/13838 |