Figure 1. Efficiency with which bees converted pollen provision mass into larval body mass (median and interquartile range).

Pollen provisions were spiked with clothianidin at one of four doses (0 ppb n = 29; 1 ppb n = 30; 3 ppb n = 35; 10 ppb n = 32). There was no difference in larval body mass between treatments.