Likelihood of successful raceme (A, C) and seed formation (B, D) dependent on plant volume. In A and B the data are presented for four damage classes and in C and D for three O. communa infestation classes (0,1, or ≥2 adults per plant). The large symbols give median volume and mean probability of raceme or seed formation, respectively, together with their associated standard errors. “Only volume” shows the average values without consideration of damage or abundance classes.