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William J. Ripple is a professor of ecology at Oregon State University in the Department of Forest Ecosystems and Society. He is best known for his research on terrestrial trophic cascades, particularly the role of the gray wolf (Canis lupus) in North America as an apex predator and a keystone species that shapes food webs and landscape structures via “top-down” pressures.
Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed. For example, a top-down cascade will occur if predators are effective enough in predation to reduce the abundance, or alter the behavior of their prey, thereby releasing the next lower trophic level from predation (or herbivory if the intermediate ...
Gray wolf in YellowStone National Park. A clear example of humans ecosynthesiszing would be through the introduction of a species to cause a trophic cascade, which is the result of indirect effects between nonadjacent trophic levels in a food chain or food web, such as the top predator in a food chain and a plant. [4]
The Ark is an American science fiction television series created by Dean Devlin, with Devlin and Jonathan Glassner serving as showrunners for the series. It premiered on Syfy on February 1, 2023, with the first season consisting of twelve episodes.
On March 1, 2023, TheWrap named Wolf Pack as one of "the most in-demand series", based on data collected by ParrotAnalytics.com. [15] According to Media Play News, the series was the 8th most watched original series across all streaming platforms in the United States during the week of February 5, 2023, [16] the 9th during the week of February ...
The Armijska Ratna Komanda D-0 (full civil designation in Serbo-Croatian: Vojni objekat Armijska Ratna Komanda ARK D-0, Армијска Ратна Команда, lit. 'Army War Command'), also known as the Ark, ARK/D-0, Atomska Ratna Komanda, and nicknamed Tito's bunker, [3] is a Cold War-era nuclear bunker and military command centre located near the town of Konjic [4] in Bosnia and ...
Recently another subspecies, the British Columbia wolf (Canis lupus columbianus), has established itself in the Cascade mountain wolf's past territory by following the Cascade Range through Washington and is now west of the Cascade Crest, [8] expanding across Oregon, [9] and into northern California to Lassen Peak, where in 2019 the Lassen pack produced 3 pups.
OR-7, also known as Journey, was a male gray wolf that was electronically tracked as he migrated from the Wallowa Mountains in the northeastern corner of the U.S. state of Oregon to the southern Cascade Range. After the wolf dispersed from his natal pack in 2011, he wandered generally southwest for more than 1,000 miles (1,600 km) through ...