2015 brief on Phrynosoma cornutum in Sonora and SE Arizona.
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The Mexico Tortoise Project, 2001-2013 We surveyed 43 localities in Sonora and Sinaloa, Mexico during 2005-2013 to collect information on the status, ecology, and genetics of desert tortoises (Gopherus morafkai). We measured and photographed… See more
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For many reasons, Sonora has historically been rather isolated from the rest of Mexico. It is the farthest state from Mexico City and long viewed by the country’s strong central government as a “frontier region” or, worse, a dry desert wasteland.… See more
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(Parent paper is here) Overview of Appendix This appendix contains the conceptual models and ecological status assessment results for the species selected as conservation elements (CEs) for the Madrean Archipelago REA. Appendix A describes the… See more
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Executive Summary This executive summary describes the breadth of the entire Madrean Archipelago (MAR) Rapid Ecoregional Assessment (REA) and illustrates examples from all of the products. It does not summarize methods but instead focuses on… See more
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Projected changes in global rainfall patterns will likely alter water supplies and ecosystems in semiarid regions during the coming century. Instrumental and paleoclimate data indicate that natural hydroclimate fluctuations tend to be more energetic… See more
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The Sierra de Bacadéhuachi is a poorly sampled extension of the Sierra Madre Occidental (SMO) located in east-central Sonora near the town of Bacadéhuachi. Sampling of moths using mercury vapor and ultraviolet lights occurred in summer and fall… See more
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This presentation is meant to stimulate action by informing others of the nature of our goals and the urgency of the need for persons with the expertise in real estate law and land acquisition to engage our problem. For the last 12 years, the… See more
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A floristic account is provided for the cactus family as part of the vascular plant flora of the contiguous protected areas of Organ Pipe Cactus National Monument, Cabeza Prieta National Wildlife Refuge, and the Tinajas Altas Region in the heart of… See more
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This report summarizes my efforts to describe the distribution, abundance, habitat, and biogeographical relationships of breeding birds in montane vegetation communities in the Sky Islands and adjacent Sierra Madre Occidental of northwest Mexico.… See more
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Bighorn sheep (Ovis canadensis) were not known to live on Tiburón Island, the largest island in the Gulf of California and Mexico, prior to the surprisingly successful introduction of 20 individuals as a conservation measure in 1975. Today, a stable… See more
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The Santa Cruz River and other riparian areas in the watershed have long been the backbone of the region’s natural and cultural heritage. This rich history is highlighted in the State of the Santa Cruz River. This companion document, State of the… See more
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