Fig. 2.

Average damage (±1 SE) inflicted on ramets of the main stolon (the 1st ramet being the youngest and the 6th being the oldest) of control and induced plants in the competition tray after carrying out a controlled herbivore attack (herbivory treatment). Damage categories: no damage (0), 1–33% (1), 33–66% (2), 66–100% (3). The asterisks above the bars indicate the statistical significance of the result of a profile analysis (SAS procedure GLM; profile statement) to test for differences in the degree of damage between ramets of successive age classes. The amount of damage was significantly higher for control than for induced plants in all age classes. ***P < 0.001, ns not significant