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    Author(s): Nathan F. Sayre
    Date: 2005
    Source: In: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 349-352
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (109 KB)

    Description

    The relative importance of different factors in driving ecological change in the valleys of southeastern Arizona and southwestern New Mexico has been debated for decades. Clearly, both anthropogenic and natural drivers have played roles: the focus should be on their interactions over time. I suggest that historically, debt and government policies interacted with periodic drought to cause degradation related to livestock. More recently, however, different interactions have emerged. Climate dominates over livestock because stocking rates have declined to relatively low levels, and the distribution of homes and conservation resources now determines where fire and other tools are employed for rangeland remediation.

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    Citation

    Sayre, Nathan F. 2005. Rangeland degradation and restoration in the "desert seas": social and economic drivers of ecological change between the Sky Islands. In: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 349-352

    Keywords

    grasslands, deserts, rangelands, degradation, debt, policy, drought, livestock, grazing, climate, fire, restoration, remediation, Sky Islands, Arizona

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