New Research Illuminates Ecology of Desert Small Mammals of the Southern Hemisphere

Our knowledge of desert small mammals, such as prairie dogs, kangaroo rats, and gerbils, is based primarily on pioneering North American studies. In the past decade data obtained from studies conducted in arid regions of the Southern Hemisphere have shown that different dynamics are at work in these animal communities. The assumption that all desert mammals share the same ecological history is no longer valid; new research has revealed that they have developed and evolved in many unique directions.

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