Percentage of variation explained by individual covariates in individual contributions to growth within male age classes.

MAM represents the variation explained by the minimum adequate model, composed of multiple covariates. The rows illustrate changes in the amount of variation explained when certain covariates are removed from the MAM. The colon between covariate terms indicates that their effects are being considered in an interaction with one another. Terms that explain a significant amount of variation are highlighted in bold. NA indicates where interactions were not present within the minimum adequate model.