Microbiologo

Páginas: 3 (549 palabras) Publicado: 17 de octubre de 2012
It's Official - Cell Phones are Killing Bees by Lori Zimmer, 05/21/11 filed under: environmental destruction Scientists may have found the cause of the world’s sudden dwindling population of bees –and cell phones may be to blame. Research conducted in Lausanne, Switzerland has shown that the signal from cell phones not only confuses bees, but also may lead to their death. Over 83 experimentshave yielded the same results. With virtually most of the population of the United States (and the rest of the world) owning cell phones, the impact has been greatly noticeable. Led by researcher DanielFavre, the alarming study found that bees reacted significantly to cell phones that were placed near or in hives in callmaking mode. The bees sensed the signals transmitted when the phones rang, andemitted heavy buzzing noise during the calls. The calls act as an instinctive warning to leave the hive, but the frequency confuses the bees, causing them to fly erratically. The study found that thebees’ buzzing noise increases ten times when a cell phone is ringing or making a call – aka when signals are being transmitted, but remained normal when not in use. The signals cause the bees to becomelost and disoriented. The impact has already been felt the world over, as the population of bees in the U.S. and the U.K. has decreased by almost half in the last thirty years – which coincides withthe popularization and acceptance of cell phones as a personal device. Studies as far back as 2008 have found that bees are repelled by cell phone signals.

Bees are an integral and necessary partof our agricultural and ecological systems, producing honey, and more importantly pollinating our crops. As it is unlikely that the world will learn to forgo the convenience of cell phones, it isunclear how much they will contribute to the decline of bees, and their impact on the environment.

Study Shows That Potent New Pesticides May Be Killing Off Honeybees by Molly Cotter, 01/30/12 filed...
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