Figure 2
From: Sugar responsiveness could determine foraging patterns in yellowjackets
Carbohydrate concentration of crop contents obtained from Vespula germanica (n = 224) and Vespula vulgaris (n = 340) workers entering nests. (A) A statistical difference was found between species, with V. germanica having higher concentrations than V. vulgaris (*p < 0.05). The left and right boundaries of the boxes indicate the 75th and 25th percentile, respectively. The lines within the boxes mark the mean. Whiskers show 90th and 10th percentiles. (B) Sugar concentration of crop contents of V. germanica and V. vulgaris.
