Negative Impact of Light Pollution to Pollination

    Negative Impact of Light Pollution to Pollination

    A light in a meadow for a light pollution experiment. Eva Knop and her team from the University of Bern in Switzerland is researching nocturnal pollinators and the effect of artificial light. The researchers have proved this for the first time, with cabbage thistle (Cirsium oleraceum). The thistles are visited frequently by insects during the day and night time. In Knop's experiment, the team artificially lit 5 meadows, and left the other 5 in natural darkness. They found out that the flowers in the lit meadows are visited around two-thirds less frequently than the flowers in the dark. This has a significant decrease in fruit produced and for the plants' chance of survival. At the end of the experiment, the average number of fruits produced per plant was around 13% lower. Day pollination can't compensate for losses in night pollination. Light pollution is negatively affecting nature in more ways than we originally thought, and we need to take action now to decrease it. Read more about this story at Science Daily

    Published on: Sep 12, 2017

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