Livestock grazing is the most widespread commercial use of federal public lands. The image of a herd grazing on Bureau of Land Management or U.S. Forest Service

The loss of the earth's biological diversity is widely recognized as a critical environmental problem. That loss is most severe in developing countries, where t

This book is open access under a CC BY-NC 2.5 license. This book provides an unprecedented synthesis of the current status of scientific and management knowledg