Table 2.

F-statistics, p-values and effect sizes (partial omega-squared, ω²_p) of a general linear model interaction term between type of ant (leaf- or trunk-ant) and colony-size-related traits (see text). Significant p-values after correction for false discovery rate are in bold. Confidence intervals for estimated effect sizes are in parentheses.

brain region	F1,59	p-value	effect size
optic lobes  lamina	0.23	0.63
medulla	0.008	0.92
lobula	1.20	0.28
olfactory lobes	0.02	0.89
mushroom bodies
calyces  medial lip	6.76	0.01	0.085 (0–0.25)
medial collar	0.01	0.92
lateral lip	15.4	0.0002	0.19 (0.04–0.37)
lateral collar	5.15	0.027	0.056 (0–0.24)
lobes  vertical (alpha)	0.68	0.41
medial (beta)	0.47	0.49