The Altar Valley, Arizona, USA How Ranchers Have Shaped the West—And Continue to Do So
A History of Working Landscapes: The Altar Valley, Arizona, USA How ranchers have shaped the West—and continue to do so. By Nathan F. Sayre pproaching rangelands as working landscapes be- Although relatively overlooked by scientists, agencies, and gins from the premise that people and the envi- environmentalists during the 20th century, the Altar Valley ronment shape each other over time. Sustainable has recently emerged as a focal point in the politics of conser- management is therefore not only an ecological but vation in Pima County, Arizona. Despite dramatic changes in Aalso a social process, strongly infl uenced by local histories of the structure and composition of vegetation and in watershed resource use, management, change, and learning. The case of function (see below), the area provides habitat to numerous the Altar Valley, Arizona, offers insights into how economics, listed threatened or endangered species. Compared to the range science, mental models, and the scale of decision mak- rest of eastern Pima County, the Altar Valley is also remark- ing have shaped ranchers and the landscape over time. In par- ably unfragmented by residential development, although the ticular, it provides empirical answers to important questions fringes of metropolitan Tucson (population approximately 1 facing range science today: How do scientifi c knowledge and million) reach right up to its northeastern edge. In conse- recommendations affect on-the-ground management? How quence, advocates of wildlife and open space conservation do ranchers weigh economic, ecological, and cultural goals are increasingly interested in the activities of the families against one another? What kinds of information do ranchers who own the valley’s major ranches.
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