What Did Park Rangers Use To Combat Erosion In Yellowstone National Park?
By the early 1990s, Yellowstone National Park, one of America’s most iconic parks, was in trouble. Herds of deer and elk, unchecked by natural predators, were stripping the forest bare. The huge herds were eating tree saplings before they had a chance to mature, consuming the heavy foliage that protected the lake shores and river banks from erosion, and otherwise enjoying their free reign like they owned the place.
And own the place they did: the predators that could keep them in check had been gone from the park since the 1920s. In 1926, the last known wolf pack in Yellowstone was killed, and the huge park was apex-predator free for the intervening seven decades. All that changed in 1995 when, after years of encouragement by biologists, park rangers introduced wolves back into Yellowstone.
The introduction of the wolves completely transformed the park. Not only did the wolves begin to cull the deer and elk herds, their presence also changed the movement patterns of the herds. Deer lingered less in any one area of the park, moved more frequently, and the vegetation thickened up, encouraging other animals (such as birds and beavers) to repopulate the area. The thicker vegetation, more abundant saplings (which are now maturing into larger trees), and other secondary changes brought about by the presence of the wolves has stopped river erosion and changed the very landscape of the park.
The Iconic Chest-Bursting Scene In The Horror Film Alien Was Inspired By?
The Only Predator That Routinely Preys On Skunks Is The?
The Very First Cardboard Boxes Were Used For?
The Khasi People Of Northern India Craft What Out Of Living Trees?
The Largest Desert In The World Is?
The Magnavox Odyssey Came With What To Enhance Early Video Game Play?
Which Classic Board Game Is Still Quite Difficult For Computers to Excel At?
Alcohol Is Banned As A Performance Enhancing Drug In Which Of These Sports?
The Last Performance Of An Entertainer’s Career Is Known As A?