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Fig. 8. Experiment 5. Scent-triggered navigation in individual bees, trained alternately to a yellow rose-scented and a blue lemon-scented feeder. The positions of the feeders were randomly varied on the perimeter of a circular area (diameter 10 m), to train bees to the colours of the feeders rather than then positions. Pie charts show distribution of visits to two empty, unscented, but coloured test feeders when the respective scents were blown into the hive (yellow, yellow test feeder; blue, blue test feeder). (A) Test feeders were placed 10 m apart, at diametrically opposite positions on the circle perimeter. (B) Test feeders were placed next to each other. In each case, data are accumulated from four tests for each scent. For A results are shown separately for first visits, circlings, landings and total visits, while for B only total visits could be registered. The number of individually marked bees that visited both test feeders, the number of choices (N), and P-values for tests of significant difference between the two feeders when the respective scents were blown (Chi2 Test) are shown below the pie charts.





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