(Science) They’re the undertakers of the honey bee world: a class of workers that scours the hive for dead comrades, finding them in the dark in as little as 30 minutes, despite the fact that the deceased haven’t begun to give off the typical odors of decay. A new study may reveal how they do it.
(Cornell University) A new study found that squash and pumpkin pollen have physical, nutritional and chemical defense qualities that are harmful to bumble bees. But the results also suggest that deterring bumble bees from collecting and eating pollen may provide an evolutionary benefit to cucurbit plants.
(University of Minnesota) A new study from the University of Minnesota found that deformed wing virus causes a honey bee’s brain to function as though the bee is older than it is. This often leads infected bees to forage prematurely, which can cause diminished spatial memory and colony failure. Additionally, these infected foragers may be more likely to spread the virus to neighboring colonies because of their disoriented state.
(CNN) Research from the Imperial College London has found that baby bumble bees can feel the effects of food contaminated by pesticides brought back into the colony, making them poorer at performing tasks later in life. Pesticide-contaminated food caused parts of the bee brain to grow less, leading to older adult bees possessing smaller and functionally impaired brains – an effect that appeared to be permanent and irreversible.
(University of California, Riverside) Research indicates that a queen bumble bee’s diet can impact how quickly her brood develops, or whether she’s able to live through hibernation. A new study from Dr. Hollis Woodard and her team at UC Riverside demonstrates that without adequate sugar, the queen’s fat body, which functions like a human liver, does not correctly produce the enzymes required for healthy metabolism and detoxification from pesticides.
(NPR) Winter is downtime for honey bees. They settle in their hives and rest. But this winter has been unusually warm in some places, and that’s causing some major headaches for beekeepers.
(The Guardian) Commercial honey bees are considered livestock by the U.S. Department of Agriculture. But no other class of livestock comes close to the scorched-earth circumstances that these bees face in the toxic chemical soup of California’s Central Valley, fertilizing almonds one blossom at a time. “The high mortality rate creates a sad business model for beekeepers. It’s like sending the bees to war. Many don’t come back.”
(British Ecological Society) Researchers found that exposure to chronic low-dose radiation, similar to levels found in the Chernobyl exclusion zone, negatively affects bumble bee energy use by increasing their metabolic rate and food consumption. “An increase in nectar consumption for an individual bee could have important ecological consequences…”