By Julia Scott
If anyone living in the village of Möggingen, Germany, had taken a close look at a bumblebee in the summer of 2009, they might have noticed something a little strange. Some of the bees were wearing what looked like small silvery backpacks with 3-inch antennae, zipping between trees and flower heads. A scientist followed discreetly behind.
The bees’ accessory was a tiny transmitter with a radar-detection range over a third of a mile. For the first time, Dr. Martin Wikelski and his colleagues at the Max Planck Institute for Ornithology succeeded in tracking bumblebees as they alighted on pear trees and nipped across meadows in idyllic and rural Germany. The study found that the bees flew up to 1.5 miles and explored areas over 100 acres, repeatedly visiting the same tree or flower patch to rest or forage. The poor bees were working hard. Given that a bumblebee weighs about 300 milligrams, packing the transmitter was the equivalent of a 150-pound person spending each day with a 100-pound barbell strapped to her back.
The backpacking bumblebees were not only a curious sight but a potential model for solving a puzzling biological mystery, colony collapse disorder (CCD)…
