The signals cause the bees to become lost 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 with the 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 part of 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 is unclear how much they will contribute to the decline of bees, and their impact on the environment.