Fig. 3
Feeding trial. Bacterial suppression reduces the values of δ15N and the percentages of 15N in different tissues of B. dorsalis consuming 15N-labelled urea. a The values of δ15N in larvae; b the values of δ15N in adults; c the percentages of 15N in larvae; d the percentages of 15N in adults. Bw: body wall; Gu: gut; Fb: fat body; Mt: Malpighian tubules; Ov: ovary; Other: a mixture of head, thorax, wing and leg tissues of adult flies; 14N-labelled urea & bacteria+: Flies feeding on 14N-labelled urea; 15N-labelled urea & bacteria+: Flies feeding on 15N-labelled urea; 15N-labelled urea & bacteria–: Flies feeding on 15N-labelled urea and antibiotics. Differences among means were determined by ANOVA followed by Tukey’s HSD test. Groups not annotated with the same letter show a significant difference (p < 0.05)