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How donkeys digging wells help life thrive in the desert

Phys.org/news (APRIL 29, 2021 )

Titre : How donkeys digging wells help life thrive in the desert

Phys.org/news (APRIL 29, 2021 )

Présentation
For thousands of years, horses and donkeys have been some of our species’ most important partners. A new study shows they’re also friends to desert animals and plants, by digging deep wells that provide a vital source of water, especially at the height of summer.
Over the course of three summers, he and his team surveyed sites in the Sonoran Desert that stretches across Arizona and California. They documented the relative contribution of wells dug by horses and donkeys compared to the surface water that was available to animals from desert streams, some of which are intermittent while others are permanent. They found that wells dug by the "equids" to depths of up to six feet (two meters) increased water availability for many native desert species, and decreased the distances between important water sources during dry periods. The wells were especially important during the hottest and driest parts of summer, when they provided the only available water source at some sites.

Source  : Issam Ahmed

Annonce (Phys.org/news)

Page publiée le 6 juillet 2021