Yellowstone's Destabilized Ecosystem: Elk Effects, Scienc...
Wagner, Frederic H. / Hamilton, Wayne L. / Keigley, Richard B.
Wagner, one of our most distinguished wildlife biologists, is a strong critic of ecological practices in the national parks. This book provides an assessment of the ecological history of Yellowstone's northern range, since before the park existed, showing the impact of US Park Service policies on the health of the areas they oversee. He demonstrates that elk had been historically rare throughout the region and that overgrazing by elk has serio...