Tests of heteroscasdicity among principal components.

We performed Brausch Pagan tests for heteroscedasticity on linear models including each principal components and our independent variables in order to examine variance among groups. Results, reported as X2(p value), indicate different ecological and life history groups exhibit more variance in their morphologies depending on the trait. Significant results, following a Holm-Bonferroni correction for multiple comparisons, are in bold.