Alfalfa leafcutting bees like nests that face north

Image of alfalfa leafcutting bee looking for nest hole.

(Entomology Today) Alfalfa leafcutting bees are exceedingly demanding about picking a site in nest boxes used for commercial production that is not too hot and not too cold but where the temperature is just right for their eggs and larvae. New research shows that the right location in a nest box may be only a couple of inches away from the wrong one.

Smart single mother bees learn from their neighbors

Image of artificial nests for bees.

(Queen Mary University of London) A new study found that solitary female bees looked for signs of parasite infection in other species’ nests and used this information to select a safe place to bring up their own brood. The scientists found these species were surprisingly intelligent in their observations and able to notice other cues of parasite infection in the surrounding environment. For example, they were able to remember geometric symbols found next to parasitized nests, and avoid nests near these symbols in future breeding periods.