Abstract

Enhancing floral biodiversity on farmlands might sound like a logical way of attracting currently dwindling bee populations, but researchers now have evidence that farm diversity has little effect on bee growth. Furthermore, bees actually grow best in suburban areas. Research headed by Dave Goulson examined nests of the bumblebee Bombus terrestris in conventional or diversified farmlands and in suburban areas and found that suburban regions supported larger nests, increased pollen diversity and supported greater numbers of a specialist bumblebee parasite, Aphomia sociella. The authors argue that because bees forage away from their nests, isolated pockets of biodiversity are not enough to have a significant effect on their growth. [Oecologia (2002) 130, 267–273] TS

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