Figure 2

Number of caterpillars per branch (n = 15). Clear box = E. defoliaria and O. brumata caterpillars, Dashed box = all caterpillars; ■ = median; box = Q1–Q3; whiskers = range; ○ = source data. Data were compared using the Kruskal–Wallis H test (‘*’p ≤ 0.001).