Fig 4. Sugar solution intake of caged bees (donor bees) fed with ¹⁴C-labelled sugar solution and bees added to cages after initial feeding phase (added bees) with and without imidacloprid.

A: Intake of donor bees feeding on 100μL temporary ¹⁴C-labelled sugar solution and subsequent added bees at a ratio of 10:5 (pooled data from 5 replicates). B: Intake of donor bees feeding on 100μL temporary ¹⁴C-labelled sugar solution and subsequent added bees at a ratio of 20:20 (pooled data from 2 replicates). C: Intake of donor bees feeding on 100μL acute ¹⁴C-labelled sugar solution (LD₅₀, 90ng/100μL) and subsequent added bees at a ratio of 20:20 (pooled data from 2 replicates). # indicates differences at p < 0.05, Mann-Whitney U-test. ° indicates outliers (values between 1.5 and 3 times the interquartile range) and *indicates far outliers (more than 3 times the interquartile range).