The wolves that were reintroduced to Yellowstone National Park in 1995 have not restored the landscape. They have not brought back the aspens and willows. They have not brought back the beavers or the songbirds. And no, the rivers have not changed, either
“Funny that you should ask,” replied Dr. Kay. “I just returned from Yellowstone National Park where I revisited many of my old research sites. Willows and aspen have grown taller at a few locations but there has not been any far reaching trophic cascade. The Lamar River and other streams have not recovered — in fact, the Lamar River in the Lamar Valley is worse than ever.”
Source: J.D. King: Wolves Don’t Change Rivers — The Patriot Post
