The mean strength and direction of estimated total phenotypic selection (STS) and direct selection (S-b) in two experimental years on each of five phenological traits of Gilia tricolor.

Mean selection coefficients were calculated by separate bootstrapped generalized linear mixed models that predict relative fitness from standardized values of each trait. Plot was a random effect in each model. For S-b, standardized biomass was included as a covariate. Selection coefficients in bold have 95% confidence intervals that do not overlap zero; years with the same letter are within overlapping confidence intervals (see supporting information).