No Effect of Colony Size on Individual Efficiency or Variation in Efficiency among Workers

<p>Each colony is represented by one data point. For each ant, the average trip duration across the first two trips is calculated; for each colony, the median (A) and the interquartile range (B) across all ants in the colony is shown. Different tasks (brood transports in emigrations, honey foraging, fly foraging, and stone collection for nest building) are shown in different symbols. Both transport duration and variance are highest for honey foraging, and lowest for brood transports in emigrations.