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).