Figure 2
From: Bourgeois queens and high stakes games in the ant Aphaenogaster senilis
Mean proportion of observations that were aggression in each group, for Q1s (above) and Q2s (below). Bars are divided into black for antennations and white for bites and stand-overs. Q1s prevailed in all groups except where indicated by numerals above bars (2 = Q2 won, 0 = both queens died or there was no result). Colony numbers are given at the bottom, with x indicating there were no behavioural data available for that group.