A multi-bureau Shared-Water Resources Issues Team was created to identify, compile, and communicate significant issues related to the shared-water resources of the U.S.-Mexico border area. Woodward and Durall, as part of the Issues Team, used surface-water drainage basins as the primary basis for defining and delineating the extent of the border area from a shared- water resources perspective, and divided the border area into 8 subareas.

This essay is about the management of natural and environmental resources in cross-border areas. It explores a group of geographical, political, legal, economic and cultural factors that arise when political units (such as sovereign countries, dependent states and other administrative units) seek to utilize natural and environmental resources efficiently and equitably while minimizing the resultant damages (for example, prevention of resource degradation and preservation of the physical environment). * Examines various types of cross-border areas at both international and sub-national levels throughout the world as well as their geographical, political, economic and cultural influences on the cross-border resource management * Uses the latest international and area data, resulting in new findings for cross-border environmental activities * Contains a large number of case studies throughout the world including four in-depth case studies of cross-border resource management

One of the biggest threats to the survival of many plant and animal species is the destruction or fragmentation of their natural habitats. The conservation of landscape connections, where animals, plants, and ecological processes can move freely from one habitat to another, is therefore an essential part of any new conservation or environmental protection plan. In practice, however, maintaining, creating, and protecting connectivity in our increasingly dissected world is a daunting challenge. This fascinating volume provides a synthesis on the current status and literature of connectivity conservation research and implementation. It shows the challenges involved in applying existing knowledge to real-world examples and highlights areas in need of further study. Containing contributions from leading scientists and practitioners, this topical and thought-provoking volume will be essential reading for graduate students, researchers, and practitioners working in conservation biology and natural resource management.