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The Fairy Circles Mystery Gets a New Suspect


The Fairy Circles Mystery Gets a New Suspect
A small study suggests that soil microbes could play a role in the ring-like grass formations in parts of Australia’s wilderness.
A ring spinifex grass, also known as a fairy circle, in Twyfelfontein, Namibia.Credit.MJ Photography/Alamy
April 12, 2021, 10:36 a.m. ET
In the Australian outback, certain grasses grow in eerie rings, with ramparts of dusty green standing at the edge of wide circles of bare red dirt. Often described as “fairy circles,” these rings of spinifex grass resemble structures first spotted in the Namibian desert, both creating enormous honeycomb patterns across the landscape that really pop out in aerial photos. In Namibia, scientists have deployed cameras on fishing rods, observed termite colonies and even used mathematical models to try to explain how this phenomenon arises. ....

Neil Ross , University Of New South Wales , Australian Journal , Angela Moles , New South Wales , Your Feed Science , நீல் ரோஸ் , பல்கலைக்கழகம் ஆஃப் புதியது தெற்கு வேல்ஸ் , ஆஸ்திரேலிய இதழ் , ஏஞ்சலா உளவாளிகள் , புதியது தெற்கு வேல்ஸ் , உங்கள் தீவனம் அறிவியல் ,

How spinifex grasses got their ring shapes


How spinifex grasses got their ring shapes
Scientists studying spinifex unearth the good and bad of soil microbes.
Spinifex ring (Triodia spp.) on the edge of the northern Simpson Desert, southwest Queensland, Australia. Credit: Auscape/Universal Images Group/Getty Images.
Scientists say they may have solved a longstanding mystery of how Australia’s iconic spinifex got its distinctive ring shape. It seems the grasses die off in the middle due to a build-up of pathogenic soil microbes.
“People generally think about the beneficial effects of soil microbes, which can help plants access water and nutrients,” says Angela Moles from the University of New South Wales, senior author of a paper published in the  ....

Neil Ross , University Of New South Wales , Angela Moles , New South Wales , Australian Journal , நீல் ரோஸ் , பல்கலைக்கழகம் ஆஃப் புதியது தெற்கு வேல்ஸ் , ஏஞ்சலா உளவாளிகள் , புதியது தெற்கு வேல்ஸ் , ஆஸ்திரேலிய இதழ் ,