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The Biological Underpinnings of Namib Desert Fairy Circles

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Journal Science
Specialty Science
Date 2013 Mar 30
PMID 23539605
Citations 26
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Abstract

The sand termite Psammotermes allocerus generates local ecosystems, so-called fairy circles, through removal of short-lived vegetation that appears after rain, leaving circular barren patches. Because of rapid percolation and lack of evapotranspiration, water is retained within the circles. This process results in the formation of rings of perennial vegetation that facilitate termite survival and locally increase biodiversity. This termite-generated ecosystem persists through prolonged droughts lasting many decades.

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