Global Trophic Cascades News

Cougar Predation Key To Ecosystem Health

ScienceDaily.com / University of Toronto October 25, 2006.

The Ecology of Fear

Scientists Say Wolves Are Helping Restore Yellowstone’s Ecosystem
by Jeff Welsch, emagazine.com

For four years, they toiled in parallel wilderness laboratories a thousand miles from home, both quietly minding their own business, which is plant science. Bill Ripple and Bob Beschta were working in separate obscurity, attempting to explain the decline and rise of three key tree species in Yellowstone National Park’s northern range.

Hunting Habits of Yellowstone Wolves Change Ecological Balance in Park

The New York Times Oct. 18, 2005.

Wolves in Yellowstone Park

National Geographic April 2005.

Killing Wolves Kills Other Animals Too

ABC News Dec. 15, 2004.

Who’s Afraid of the Big Bad Wolf? The Yellowstone Wolves Controversy

Journal of Young Investigators Nov. 2004.

Wolves linked to vegetation improvements

By Amber Travsky
March 18 ,2004, Wyoming Tribune-Eagle newspaper.

YELLOWSTONE NATIONAL PARK - Biologists had a question: what was happening to the aspen in Yellowstone National Park? Although quaking aspen is the most widely distributed tree in North America, its abundance has been shrinking over the past century. This loss has been especially apparent in our nation’s first park, where stands of the white-barked tree, with its trembling leaves and brilliant fall foliage, have decreased dramatically over the last century.

Endangered Wolves Make a Comeback

National Public Radio Feb. 20, 2004.

Wolves' Leftovers Are Yellowstone's Gain, Study Says

National Geographic News Dec. 4, 2003.

Wolves linked to tree recovery

Billings Gazette Oct 29, 2003.