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Fig. 5. Experiment 3. Scent-triggered navigation in individual bees, trained alternately to a rose-scented and a lemon-scented feeder placed at two different locations. Pie charts show distribution of visits to four empty, unscented test feeders during an 8 min rose scent interval, and an 8 min lemon scent interval (white, former rose feeder; grey, former lemon feeder; black, two dummy feeders placed randomly in the area). Data are accumulated from three tests for each scent, and are shown separately for first visits, circlings, landings and total visits. The number of individually marked bees that visited both test feeders, the number of choices (N) and P-values (observed vs expected frequency Chi2 Test) are shown below the pie charts. The expected frequency, based on random choice among the four test feeders, was 25%.





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