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Fig. 3. Effect of a proboscis extension conditioning procedure on the orientation
towards linalool. (A) Mean duration ±S.D. (seconds) of the
total flight and of the flight around the odour source. (B) Percentages of
bees exhibiting orientated flights (up-wind zig-zag flight) and circling
behaviour. Asterisks indicate significant differences:
*P<0.05; **P<0.01;
***P<0.001; NS, not significant.