Fig. 5.

Physical contact with the queen induces worker excitation. a-c Worker movement before a physical encounter with the queen (‘Pre retinue’, negative times), and after it (‘Post retinue’, positive times). d-f Differences between the movement of pre- versus post-retinue workers. Differences were calculated by subtracting the observation at a given time before the queen contact, $T=-t$, from the observation at the same time after the contact, $T=+t$. Black crosses indicate cross-colony grand means & standard errors. Each colony contributes one value to the grand mean (n=10). Solid red lines indicate fits from the GAMMs described in the text. Blue arrows in d-f indicate times when the pre- and post-retinue GAMM fits were significantly different (at p<0.01)