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Wolf populations in Yellowstone National Park have myriad impacts on ecosystems, but exactly how those impacts play out in the complex system is still under consideration. New research from Utah State ...

The commonly held claim that wolves reintroduced into Yellowstone National Park in the mid-1990s spearheaded a "trophic cascade" of ecological restoration, as some studies indicated, is unfounded, ...

Visitors from the North -- Web of life. Patterns in an ecosystem ; Living in a landscape of fear : trophic cascades mechanisms ; Origins : aquatic cascades ; Why the earth is green : terrestrial ...

A critique from a team led by Utah State University ecologist Dan MacNulty and published in Forest Ecology and Management has prompted a formal correction to a high-profile study on aspen recovery ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

Across North America, mountain lions, bears, and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...

Trophic cascades : what they are, how they work, and why they matter / John Terborgh, Robert D. Holt, and James A. Estes -- Food chain dynamics and trophic cascades in intertidal habitats / Robert T.

So the discussion over trophic cascades is understandably nuanced, complex and controversial. “We think it’s more accurate to represent this as a multi-predator, density-mediated trophic cascade,” ...

Purpose: To introduce the idea of indirect effects of predator on prey by changing prey behavior, and of trophic cascades - effects of predators on primary producers; to construct a flow diagram of ...