On a visit to Mount Etna a few years ago, the thing that struck us most (apart from the surrounding landscape and views of Catania) was huge number of ladybirds scattered across the vast and seemingly lifeless mountain top. Under each black volcanic rock you could guarantee to find an abundance of red. We were in amazement but very curious.
© Manvir Rai |
Having done some reading the reasons behind this are actually quite understandable. Mount Etna on the Italian island of Sicily, lies in one of the shortest migration route of many birds and insects from Africa to Europe. Unlike birds, insects are completely dependent on the wind and air currents when it comes to their destination. For this reason a large number of insects are often found deposited at higher points, including light houses and ships.
Mount Etna has an altitude of 3,350 meters. Another reason for the discovery of ladybirds so high up is a process called hilltopping. As the air around the volcano heats throughout the day, it begins to rise. It has been discovered that a current of hot air with strength no more than a puff of breath would be needed to lift small insects such as ladybirds. Some will then be left at the top, after a journey up that was much less strenuous than ours!
Many people have commented across the internet on this fascinating finding, but as such an unusual sight I had to join them!
If you have any further knowledge on this please do share!