Consequence of Artificial Light

Influence of artificial light Our world is a constantly changing place and has made technological progress more than ever over the past 100 years. We made computers, boarded the moon, and developed X - rays, microwave ovens, telephones and incandescent light bulbs. This seemingly meaningless invention is characterized not only by humans but also on the Earth itself. In pictures taken from outer space, you can see that most areas of the world are illuminated 24 hours a day.

Artificial light changes the nighttime environment of a wide area of ​​the Earth, 88% of Europe and nearly 50% of the USA are experiencing slightly contaminated night sky. The impact on the ecosystem varies from high illuminance close to direct light source to very general but low illuminance. It is well known that species exhibit various physiological and behavioral responses to artificial night lighting but it is still difficult to mechanically understand the impact of the entire ecological community, especially for different light intensities Is required. Using medium scale laboratory experiments with insect communities, we determined the effect of different nutrient levels and artificial light intensity of 0.1 to 100 lux for interaction between species. Surprisingly, we found that the impact is greatest at low levels of artificial lighting (0.1 to 5 lux), and the aphid density is reduced by 1.8 times overall.

Artificial light at night is one of the most obvious physical changes to the biosphere for humans, the simplest pollution form observed in the universe. The main environmental impact of artificial light is due to the use of light as an information source (not energy). The hunting efficiency of visual predators usually increases under artificial light and changes the predator interaction of predators. Artificial light also affects dispersion, direction, movement and hormone levels, leading to disorder of circadian rhythm

Some scientists speculate that moths are trying to sail using artificial light at night instead of the moonlight. The light from the moon is the same for both moth's eyes, but the light from the artificial light source looks brighter on one eye than the other. In this case, artificial light affects the moth by disorientation and turns it towards the light bulb. The idea of ​​the Education.com Science Fair project is for reference only. Education.com makes no warranties or representations concerning science fair project ideas, and is not responsible for any loss or damage caused directly or indirectly from the use of such information. By accessing the Science Fair Project Ideas, you can renounce and abandon the allegations to Education.com.