Figure 3: Population means (+/- 1SE) for each functional trait measured in each garden, in relation to their home climate (indicated by principal component axis 1 values). Populations are colored by mean annual temperature (MAT °C). Regression lines are present when there is a significant relationship (p < 0.05) between the PC1 axis and the trait. Dashed lines indicate marginal significance (0.05 < p < 0.1). Note the y-axis varies in scale among the three gardens.