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Filtering by: Advisor Ripple, William J. Committee Member Doescher, Paul S.

Trophic cascades and large mammals in the Yellowstone ecosystem

Creator:

Painter, Luke E.

Abstract:

Reintroduction of wolves to Yellowstone National Park (YNP) in 1995-96 provided a rare opportunity to observe the response of an ecosystem to the return of a top predator, including possible reversal of decades of decline of aspen, cottonwood, and tall willows suppressed by intensive herbivory on elk winter ranges. To...

Resource Type:

Dissertation
Evidence of a trophic cascade among wolves, elk, and aspen in Yellowstone National Park, USA

Creator:

Halofsky, Joshua S.

Abstract:

According to general top-down trophic theory, in the presence of carnivores, herbivore behavior and/or densities could change and result in an overall decrease in herbivory on plant communities. In this dissertation, I examined the potential relationship between gray wolf (Canis lupus) presence and absence on elk (Cervus elaphus) herbivory of...

Resource Type:

Dissertation