from: Trends in Parasitology, Nazzi et al.: "Disentangling multiple interactions in the hive ecosystem"
Honeybee populations are clearly under stress--from the parasitic Varroa mite, insecticides, and a host of other factors--but it's been difficult to pinpoint any one of them as the root cause of devastating and unprecedented losses in honeybee hives. Researchers writing in the Cell Press journal Trends in Parasitology on November 24th say that the problem likely stems from a complex and poorly understood interplay of stresses and their impact on bee immunity and health. It's a situation they suspect might be improved through stress management and better honeybee nutrition.