Figure 4.

Pre-departure behavior of inactive Polybia occidentals. Proportions of inactive wasps engaged in three activities during the five minutes (300 sec) prior to the departure of each individual in the sample. When proportions do not total 1.0, as at the left-hand ends of the plots, the remaining proportions are made up of non-moving individuals. Individuals' absolute departure times are all different, but are aligned (at time = 0) so as to show sample-wide patterns. Note that y-axes are scaled differently.