Living in the city mole learned not to fly to light

It is only a summer night on the veranda of the country house to turn on the light bulb, as night butterflies and mol. Insects are stubbornly fighting the source of light, sweeping his wings. Looking at it, sometimes you think about it: "If the evolution really exists, then the instinct" light = danger did not appear for so many generations? "Light = Danger?". Perhaps this moment finally happened: comparing the behavior of moths living in the city feature, and moths living in the countryside, scientists came to the conclusion that the "urban" light attracts much smaller.

In order to establish differences in the behavior of urban and rural moles, Swiss scientists have collected 525 larvae of the becklock of the mountainous moth living in conditions of urban light pollution, and as much larvae from the countryside, where there is no strong street lighting. After the larvae reached the ripe age, the specialists studied their reaction to light in laboratory conditions. Studies have shown that the larvae collected in the conditions of the light study of the city of Basel, less willingly fly to the source of light than their counterparts from rural areas. Interestingly, among urban moths, the females showed the least attention to the light.

Thus, scientists have proven that insects can change their habits due to the influence of a person on their familiar ecosystem. But not always such changes are beneficial: the acquired skills increased the survival of moths within the city, but lowered the average distance of the insect flight. Now the insect pollinates less plants, which, in turn, after a few years it may cause violation of the entire ecosystem of the region.

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