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Wolves, trophic cascades, and rivers in the Olympic National Park, USA
October 27, 2020
Gray wolves (Canis lupus) were extirpated in the early 1900s from the Olympic Peninsula of northwestern Washington. Thus, we studied potential cascading effects of wolf removal by undertaking a retrospective study of Roosevelt elk (Cervus elaphus) populations, riparian forests, and … read more
Posted in Trophic Cascade | Tagged channel morphology, elk, riparian plant communities, trophic cascades, wolves

Tall willow thickets return to northern Yellowstone
May 31, 2020
Northern Yellowstone National Park provides an example of passive restoration, as wetlands and riparian areas there lost most tall willows in the 20th century, due to intensive herbivory by elk (Cervus canadensis). Following large carnivore restoration in the late 1990s, … read more
Posted in Trophic Cascade | Tagged bison, browsing, Cervus canadensis, passive restoration, Salix, sandbar willow, tall willows, trophic cascade, ungulate herbivory, yellowstone

Reciprocity in Restoration Ecology: When Might Large Carnivore Reintroduction Restore Ecosystems?
July 6, 2019
Carnivore reintroduction is often expected to revert community and ecosystem properties to their natural states via risk effects and the direct killing of prey. Because large carnivore extirpation and reintroduction are usually believed to have symmetric and offsetting effects, fulfilling … read more
Posted in Trophic Cascade | Tagged carnivore, ecology, large, might, reciprocity, reintroduction, restoration

Can Large Carnivores Change Stream via Trophic Cascade?
July 6, 2019
Large carnivores were persecuted in Yellowstone National Park, WY, USA, during the late 1800s and early 1900s, leading to extirpation of grey wolves (Canis lupus) and cougars (Puma concolor). Soon thereafter increased herbivory of riparian plant communities by Rocky Mountain … read more
Posted in Trophic Cascade | Tagged carnivores, cascade, change, large, stream, trophic

Wolves for Yellowstone: Dynamics in Time and Space
July 6, 2019
The reintroduction of gray wolves (Canis lupus) to Yellowstone National Park is the most celebrated ecological experiment in history. As predicted by population models, the rapid recovery of a wolf population caused both temporal and spatial variability in wolf–ungulate interactions … read more
Posted in Trophic Cascade | Tagged dynamics, space, wolves, yellowstone

Indirect Effects And Traditional Trophic Cascades: A Test Involving Wolves, Coyotes, And Pronghorn
July 6, 2019
The traditional trophic cascades model is based on consumer–resource interactions at each link in a food chain. However, trophic-level interactions, such as mesocarnivore release resulting from intraguild predation, may also be important mediators of cascades. From September 2001 to August … read more
Posted in Trophic Cascade | Tagged cascades, effects, indirect, involving, traditional, trophic, wolves