Figure 2.  A visual summary of the GLMM for Bergmann’s Rule showing relationships between mean length of copepods and (c) SST, (d) Chl-a, (e) abundance of invertebrate predators, and (f) proportion of omnivorous copepods. Blue solid lines represent expected values of mean length for each predictor, the grey band represents the 95% confidence interval for the expected values, and points are the observations. (a) The Survey random effect is shown with the intercepts and 95% confidence intervals (hidden by the mean estimate), and (b) the tow random effects, visualised with a hexplot of the random intercept and random slope for days elapsed (n=100,326).