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Non-Random Sampling Measures The Occurrence But Not The Strength Of A Textbook Trophic Cascade, Daniel R. Macnulty, Elaine M. Brice, Eric J. Larsen
Non-Random Sampling Measures The Occurrence But Not The Strength Of A Textbook Trophic Cascade, Daniel R. Macnulty, Elaine M. Brice, Eric J. Larsen
Wildland Resources Faculty Publications
Although sampling the five tallest young aspen in a stand is useful for detecting the occurrence of any aspen recruitment, this technique overestimates the population response of aspen to wolf reintroduction. Our original conclusion that random sampling described a trophic cascade that was weaker than the one described by non-random sampling is unchanged.
From Flames To Forage: How Wildfire Affects Elk Behavior And Abundance, Megan M. Whetzel
From Flames To Forage: How Wildfire Affects Elk Behavior And Abundance, Megan M. Whetzel
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Rocky Mountain elk (Cervus elaphus nelsoni) is an ecologically and culturally important wildlife species in the Intermountain West, but it is facing habitat changes caused by increasing fire activity. Wildfire frequency is projected to continue to change into the future, yet increases in annual area burned and increases in area burned at high severity may actually represent opportunities for some species. Large herbivores like elk may benefit from increased access to regenerating areas where forage abundance and quality are often elevated. Therefore, effective management of wildlife populations may depend on quantifying how large ungulates, like elk, alter …
Revisiting Trophic Cascades And Aspen Recovery In Northern Yellowstone, Robert L. Beschta, Luke E. Painter, William J. Ripple
Revisiting Trophic Cascades And Aspen Recovery In Northern Yellowstone, Robert L. Beschta, Luke E. Painter, William J. Ripple
Aspen Bibliography
We revisit the nature and extent of trophic cascades and quaking aspen (Populus tremuloides) recovery in the northern range of Yellowstone National Park (YNP), where studies have reported on Rocky Mountain elk (Cervus canadensis) browsing and young aspen heights following the St. John, 1995-96 reintroduction of gray wolves (Canis lupus). A recent study by Brice et al. (2021) expressed concerns about methodologies employed in earlier aspen studies and that results from those studies exaggerated the extent to which a trophic cascade has benefitted aspen, concerns such as: (a) the selection of aspen stands, (b) …