Publications
Historic aspen recruitment, elk, and wolves in northern Yellowstone National Park, USA.. Biological Conservation. 95:361-370.
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2000. The Role of Postfire Coarse Woody Debris in Aspen Regeneration.. Western North American Naturalist. 16(2):61-64.
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2001. Trophic Cascades among wolves, elk and aspen on Yellowstone National Park's northern range.. Biological Conservation. 102:227-234.
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2001. Aspen age structure in the northern Yellowstone Ecosystem:USA.. Forest Ecology and Management. 179:469-482.
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2003. Aspen Stand Conditions on Elk Winter Ranges in the Northern Yellowstone Ecosystem, USA.. Natural Areas Journal. 25(4):326-338.
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2005. After long-term decline, are aspen recovering in northern Yellowstone? Forest Ecology and Management. 329:108-117.
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2014. Recovering aspen follow changing elk dynamics in Yellowstone: evidence of a trophic cascade? Ecology. 96(1):252-263.
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2015. .
2018.