It was mid-July, and Sam Comfort was teetering at the top of a 20-foot ladder, desperately trying to extract a cluster of furious honeybees from a squirrel house in rural Dutchess County, New York. Four stingers had already landed on his face, leaving welts along the fringe of his thick brown beard. That morning, the owner of the squirrel house had read an article in the local paper about Comfort’s interest in collecting feral honeybees, so he called and invited him over. Commercial bee colonies, faced with massive mortality rates, are not faring so well these days, and unmanaged hives like this one could be their salvation. Comfort hurried over, eager to capture the hive’s queen and bring her home for monitoring and, if she fares well, breeding.
The nation’s great bee die-off has provoked a furious debate: What has caused a third of all commercial honeybee colonies to perish each year since 2006? Although widespread bee deaths have occurred before, the current sharp decline is different. This time some bees have simply vanished, abandoning their hives. The phenomenon, known as colony collapse disorder (CCD), has been attributed in part to the same viral and bacterial infections, pesticide poisonings, and mite infestations that devastated bees in the past.
Whatever the proximate cause, it increasingly appears that the bees are succumbing to a long-ignored underlying condition—inbreeding. Decades of agricultural and breeding practices meant to maximize pollinating efficiency have limited honeybees’ genetic diversity at a time when they need it the most. Addressing CCD may therefore require more than a simple fix. “We need to have a diverse set of genetic raw material so we can find bees resistant to disease,” says Steve Sheppard, an entomologist at Washington State University. “Genetic diversity is an important part of the solution.”
