Figure 1: Aggression assay.
From: Appetitive floral odours prevent aggression in honeybees
(a) Top view of the arena showing the location of the odourant and honeybee entry points, as well as the rotating dummy. (b) ‘Experimental data’: percentage of trials in which at least one of the bee stung the dummy, recorded as a function of the odour present (TEC: solvent; IAA: alarm pheromone) and the number of bees introduced inside the arena. ‘Theoretical data’: results expected if the two bees were acting independently from each other, calculated from the probability of attack of a single bee. χ2 tests; NS, not significant; P>0.05, **P<0.01, n=32 single bees and 32 pairs of bees.
