Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

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, ...

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 ...

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 ...

A critique from a team led by Utah State University ecologist Dan MacNulty and published in Forest Ecology and Management has ...

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 ...

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 ...

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 ...

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.

Bromeliad ecosystems represent unique, naturally occurring microcosms that accumulate water and detritus within their rosettes, providing essential aquatic habitats in tropical forests. These ...