OREGON STATE UNIVERSITY

Global Trophic Cascades News

Yellowstone streams recovering thanks to wolf reintroduction

Robert Beschta and William Ripple of the OSU College of Forestry looked at stream-bank willows over a 13-year period along two forks of a creek in Yellowstone National Park, first in 2004 and again in 2017.

Aspen is making a comeback in and around Yellowstone National Park, because of predators

This is the first large-scale study to show that aspen is recovering in areas around the park, as well as inside the park boundary, said Luke Painter, a wildlife ecologist at Oregon State University and lead author on the study. Wolves were reintroduced to the park in 1995. The study shows their predation on elk is a major reason for new growth of aspen, a tree that plays an important ecological role in the American West.

Border wall a barrier to conservation

Oregon State University researchers William Ripple and Christopher Wolf, both part of the Global Trophic Cascades Program of the Department of Forest Ecosystems and Society, are among the paper’s 18 co-authors

Rangers find 109,217 snares in a single park in Cambodia

Snares – either metal or rope – are indiscriminately killing wildlife across Southeast Asia, from elephants to mouse deer. The problem has become so bad that scientists are referring to protected areas in the region as “empty forests.”

OSU researchers question acceptance of trophy hunting

Researchers at Oregon State University are challenging the premise that trophy hunting is an acceptable and effective tool for wildlife conservation and community development.

Earth’s mammals have shrunk dramatically, and humans are to blame

Something about substantial animals makes them more vulnerable to population collapse, said William Ripple, director of the Global Trophic Cascades Program at Oregon State University. For starters, there are usually fewer of the big animals, at least compared with the little guys.

The hidden life of wolves

Explore how wolves improve ecosystems with this interactive map!

The danger of seeing cute animals everywhere

The Washington Post, April 12: Charismatic animals such as giraffes and pandas are ever-present in ads, logos, films, books and toys. The scientists posit that the ubiquity of these depictions — which they say amount to a “virtual population”— may lead “the general public to think that these animals are common and abundant, when they’re not,” said co-author William Ripple, an ecologist at Oregon State University.

Want to bring back the lions, tigers and bears? Here are the best places on Earth.

OSU Press Release, March 27, 2018: “We wanted to examine the potential for reintroductions globally, not just at a few sites,” said Wolf, who conducted the analysis as a graduate student working with William Ripple, distinguished professor of forest ecology at Oregon State.

‘Rewilding’ Missing Carnivores May Help Restore Some Landscapes

NY Times, March 16, 2017: “We’re just uncovering these effects of large carnivores at the same time their populations are declining and are at risk,” said William Ripple, an ecologist at Oregon State University. He’s found that if you rewild some carnivores, or return them back to lost ranges, a cascade of ecological bounty may follow.

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