Figure 2. Brood and fungus relocation experiments.

(a) Experiment 1: Relocation of items from cold stress (10°C) by a worker group after 24 h, presented as percentage of the total offered amount (20 pupae and 0.5 g fungus) (median ± 25–75% percentiles), ***p<0.001 (Analysis of colony effects: Kruskal-Wallis-Test; Brood relocation; H = 0.0; p = 1; n = 5; Fungus relocation; H = 0.66; p = 0.72; n = 5; n.s.; no colony effects found). (b) Experiment 2: Relocation of items from desiccation by single workers: an A. lundi worker encounters a pupa and a piece of fungus on an experimental platform (1.5×1.5 cm). (c) Score of first item relocated, expressed as percentage of total observations (n = 101), ***p<0.001 (Analysis of colony effects: Fisher's Exact test for 3×2 contingency tables; p = 0.24; no colony effects found).