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The effects of electromagnetic radiation on ant pheromones. (Senior Division).

This investigation attempted to determine the relationship between exposure to ultraviolet tight and the degradation of a pheromone trail laid by black carpenter ants. This was done by allowing the ants to run along an 11-inch length of plastic tubing (which kept the ants from wandering) and finding a food source, then to return down the tube. Afterwards, the plastic tubing was removed and the trail was exposed to either ultraviolet light or darkness for five minutes, after which a second ant was allowed to follow the trail without a guide tube. The distance from the trail was measured at three points, and it was found that the ants following the trail exposed to ultraviolet strayed on average 2.4 times as far from the trail as did those in the control group Also, six times as many ants in the ultraviolet group did not detect a trail as in the control group. Nevertheless, because of unforeseen error sources, this experiment proved to be inconclusive.

Ko-Chun Wang, Cherry Creek High School.
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Author:Wang, Ko-Chun
Publication:Journal of the Colorado-Wyoming Academy of Science
Article Type:Brief Article
Geographic Code:1USA
Date:Apr 1, 2002
Words:171
Previous Article:Analysis of regional distribution of rough-legged hawks. (Senior Division).
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