Table 2. Summary of PGLS models of xylem tracheid characters as
functions of MAT, MAP and their interaction, with models’
R2 for phylogeny and climate partitioned by the method
of Ives (2019). MAT, mean annual temperature; MAP, mean annual
precipitation. Multivariate models included climatic variable
interactions, i.e., MAT*MAP. For tracheid length (CL) in both earlywood
and latewood, the interaction was not significant, as marked by a “*”
next to the AIC-value. Models with the highest R2 for
each trait were bold and italicized. Acronyms of tracheid characters are
according to Table 1.