Millions of ‘fairy circles’ are spreading out over the fields in Namibia and Australia in a self-organized pattern.
Researchers have for years tried to find out where the circles come from, and in 2017 showed the scientists with a mathematical model, that the patterns fit well with termitternes dissemination. But now shows a study by, among others, a German researcher that the circles do not have anything to do with termites anyway. It writes Science.dk.
the Conclusion comes from the German researcher Stephan Getzin, along with a team of scientists from Israel and Australia, systematically monitored an area with circles in Australia.
Over a distance of 12 kilometers dug the researchers 154 holes, and they have simply not found the highway of the underground, working termites, which has been suspected to create the circles.
With the drones, the researchers have also mapped large areas, which is just the attack of termites. Here, they have seen that areas where the vegetation is destroyed by termites, are only half as large as fe-circles.
Overall, the shows the our study, to termitkonstruktioner can occur in areas with the fairy-circles, but the semi-local correlation between the termites and the circles are not a causal link, says Stephan Getzini in a news release, according to Science.dk.
Stephan Getzin works thus to join the ’planteholdet’, who believe that the mysterious circles are a kind of water-reservoirs for the plants.
During his studies he found also out that the fairy circles are not necessarily forming a regular pattern.
the Circles vary in both size, shape and regularity. Some will be up to 20 meters in diameter, the other achieves a form which bilspor.
the Comparison of soil samples suggest that the circles contain more water, the sharper the pattern is.
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