Plant traits
There were no significant differences in leaf thickness of male and female plants (𝛘2=0.11, P=0.73), across time (𝛘2=2.93, P=0.70), or the interaction between both variables (𝛘2=0.74, P=0.98). Herbivory rates inB. cordata did not show significant differences between plant sex (𝛘2=0.02, P=0.87), across time (𝛘2=2.90, P=0.40), or the interaction between both variables (𝛘2=0.08, P=0.99). For the water content in leaves, we found significant differences only across time (𝛘2=0.31, P<0.001), whereas plant sex (𝛘2=0.001, P=0.67) and the interaction between sex and time (𝛘2=0.002, P=0.825) were not significantly different. The highest amount of water in the leaves was observed in August (male=0.64±0.009; female=0.65±0.007) and the lowest was during February for both sexes (male=0.54±0.009; female=0.54±0.01) (Fig. 1 ). Finally, we detect significant differences on sex ratio, showing a female-biased frequency of 3:2 (𝛘2=8.48, P=0.003, N=283).