Transboundary conservation in the borderlands : what drives environmental change? / Robert G. Varady and Evan R. Ward -- Nature's fair share : finding and allocating water for the Colorado River Delta / Francisco Zamora-Arroyo and Karl W. Flessa -- Restoring a dessert lifeline : the big bend reach of the Rio Grande / Mark Briggs, ... [et al.] -- A convergence of borders : indigenous peoples and environmental conservation at the U.S.-Mexico border / Rachel Rose Starks and Adrian Quijada-Mascareänas -- The wisdom of the Sierra Madre : Aldo Leopold, the Apaches, and the land ethic / Richard L. Knight -- Connecting wildlife habitats across the U.S.-Mexico border / Melanie Culver, ... [et al.] -- Open skies over a closing border : U.S.-Mexico efforts to protect migratory birds / Charles C. Chester and Emily D. McGovern -- Mexican wolf recovery : insights from transboundary stakeholders / Josâe F. Bernal Stoopen, Jane M. Packard, and Richard Reading -- Finding mutual interest in shared ecosystem services : new approaches to transboundary conservation / Laura Lâopez-Hoffman, Robert G. Barady, and Patricia Balvanera -- Just add water? Transboundary Colorado River flow and ecosystem services in the Upper Gulf of California / Luis E. Calderon-Aguilera and Karl W. Flessa -- Sustaining transboundary ecosystem service provided by bats / Rodrigo A. Medellâin -- Grasslands in the borderlands : understanding coupled natural-human systems and transboundary conservation / Gerardo Ceballos, ... [et al.] -- A regional and continental perspectinve : how an changing climate will affect U.S.-Mexico transboundary conservation / Matt Skroch -- Cooperative conservation, unilateral security : the story of two sister parks on the U.S.-Mexico border / Jessica Piekielek -- Assessing border-related human impacts at organ pipe cactus national monument / Christopher Sharp and Randy Gimblett -- A fense runs through it : conservation implications of recent U.S. border security legislation / Brian P. Segee and Ana Câordova -- The comission for environmental cooperation and transboundary conservation across the U.S.-Mexico border / Stephen P. Mumme, ... [et al.] -- Transboundary conservation between the United States and Mexico : new institutions or a new collaboration? / Ana Câordova and Carlose A. de la Parra -- Conclusion : guiding principles for successful transboundary conservation.