The Influence of Photoperiod on the Flight Activity of Honeybees

SummaryHoneybees in controlled-environment rooms developed flight activity patterns in response to the cycles of light and dark. As the photophase was lengthened, flight activity per unit time decreased, and in continuous light the diurnal rhythm faded. By altering the timing of the photophase, bees could be conditioned to high flight activity at times other than their “normal” peak flight period in the afternoon.