Figure 2.

Foraging activity of Lasius niger under GMF and NNMF recorded during Phase 2. Violin plots show (A) the time spent by the first recruited worker to reach the food source, (B) the time to return to the nest by all workers that had fed for more than 30 seconds at the food source, and (C) the number of errors made while returning to the nest. The violin shape shows the distribution of the values, and the box plot is made by a black line in the center that indicates the median; the top and bottom of the black box represent the upper and lower quartiles; whiskers represent the maximum and minimum values, while the black dots indicate the outliers. Diamonds indicate mean values. Different letters indicate significantly (p < 0.05) different values based on generalized linear mixed model results.