The world's first national park, Yellowstone is a symbol of nature's enduring majesty and the paradigm of protected areas across the globe. But Yellowstone is constantly changing. How we understand and respond to events that are putting species under stress, say the authors of Yellowstone's Wildlife in Transition, will determine the future of ecosystems that were millions of years in the making. With a foreword by the renowned naturalist E. O. Wilson, this is the most comprehensive survey of research on North America's flagship national park available today.

Marshaling the expertise of over thirty contributors, Yellowstone's Wildlife in Transition examines the diverse changes to the park's ecology in recent decades. Since its creation in the 1870s, the priorities governing Yellowstone have evolved, from intensive management designed to protect and propagate depleted large-bodied mammals to an approach focused on restoration and preservation of ecological processes. Recognizing the importance of natural occurrences such as fires and predation, this more ecologically informed oversight has achieved notable successes, including the recovery of threatened native species of wolves, bald eagles, and grizzly bears.

Nevertheless, these experts detect worrying signs of a system under strain. They identify three overriding stressors: invasive species, private-sector development of unprotected lands, and a warming climate. Their concluding recommendations will shape the twenty-first-century discussion over how to confront these challenges, not only in American parks but for conservation areas worldwide. Highly readable and fully illustrated, Yellowstone's Wildlife in Transition will be welcomed by ecologists and nature enthusiasts alike.

First Published in 1984, this 40th Anniversary Edition of Youghiogheny is Revised and Expanded with a Beautiful New Cover 

Turbulent rapids and wild shorelines of the Youghiogheny River highlight natural wonders of the Appalachian Mountains, and midway on the stream’s revealing path, Ohiopyle State Park is a showcase of beauty and has become a recreational hotspot where the river thunders over its iconic falls and cascades through the wooded gorges of Pennsylvania. With deep reflection, a compelling sense of adventure, and family ties to the waterway going back many generations, author Tim Palmer wrote Youghiogheny: Appalachian River in 1984 as the essential biography of this river and region. Now, in this fortieth anniversary revised and expanded edition of his classic narrative on this special landscape and its people, he revisits the river, addresses the changes that have occurred since the book was first published, and poses the question: What will happen to this historic and cherished place?