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Full-Text Articles in Forest Sciences
Aspen Restoration In The Blue Mountains Of Northeast Oregon, D.M. Shirley, V. Erickson
Aspen Restoration In The Blue Mountains Of Northeast Oregon, D.M. Shirley, V. Erickson
Aspen Bibliography
No abstract provided.
Long-Term Aspen Exclosures In The Yellowstone Ecosystem, Charles E. Kay
Long-Term Aspen Exclosures In The Yellowstone Ecosystem, Charles E. Kay
Aspen Bibliography
Aspen has been declining in the Yellowstone Ecosystem for more than 80 years. Some authors have suggested that aspen is a marginal plant community in Yellowstone and that recent climatic variation has adversely affected aspen, while others contend that excessive browsing by native ungulates is primarily responsible for aspen’s widespread decline. To test these hypotheses, I measured all the long-term aspen exclosures (n = 14) in the Yellowstone Ecosystem. Aspen stands inside all exclosures successfully produced new stems greater than 2 m tall without fire or other disturbance, while few outside stands successfully regenerated due to repeated browsing. Understory species …
Aspen Overstory Recruitment In Northern Yellowstone National Park During The Last 200 Years, Eric J. Larsen, William J. Ripple
Aspen Overstory Recruitment In Northern Yellowstone National Park During The Last 200 Years, Eric J. Larsen, William J. Ripple
Aspen Bibliography
Using a monograph provided by Warren (1926) and two sets of aspen increment cores collected in 1997 and 1998, we analyzed aspen overstory recruitment in Yellowstone National Park (YNP) over the past 200 years. We found that successful aspen overstory recruitment occurred on the northern range of YNP from the middle to late 1700s until the 1920s, after which it essentially ceased. We hypothesized why the browsing influence of Rocky Mountain elk (Cervus elaphus) may be different now than it was historically. At a landscape scale, elk hunting outside YNP may be a significant factor changing elk foraging behavior. At …