Table 3. Multiple regressions predicting intraspecific variation in six plant functional traits from five environmental variables in four Nothofagus species.

Trait	Species	MAT	Elevation	Latitude	MAR	Soil P
Wood density	N. solandri	–ve	–ve	–ve	NS	NS
	N. menziesii	NS	NS	–ve	NS	NS
	N. fusca	NS	NS	NS	+ve	NS
	N. truncata	+ve	+ve	+ve	NS	–ve
Leaf size	N. solandri	+ve	+ve	+ve	NS	NS
	N. menziesii	+ve	NS	NS	–ve	NS
	N. fusca	NS	NS	–ve	NS	+ve
	N. truncata	–ve	–ve	–ve	+ve	+ve
LMA	N. solandri	–ve	NS	–ve	+ve	NS
	N. menziesii	NS	+ve	NS	NS	–ve
	N. fusca	NS	NS	NS	NS	–ve
	N. truncata	+ve	NS	+ve	NS	NS
LDMC	N. solandri	–ve	NS	–ve	+ve	NS
	N. menziesii	NS	+ve	–ve	NS	NS
	N. fusca	NS	NS	NS	NS	–ve
	N. truncata	+ve	NS	+ve	NS	NS
Leaf thickness	N. solandri	NS	+ve	NS	+ve	+ve
	N. menziesii	+ve	+ve	+ve	NS	–ve
	N. fusca	–ve	–ve	–ve	–ve	–ve
	N. truncata	NS	–ve	–ve	NS	NS
Leaf density	N. solandri	–ve	–ve	–ve	NS	–ve
	N. menziesii	–ve	NS	–ve	NS	+ve
	N. fusca	+ve	+ve	+ve	+ve	NS
	N. truncata	+ve	+ve	+ve	NS	NS

A full regression model with all five environmental variables was run for each trait and species. This model was reduced to significant terms through backwards selection. The direction of significant terms in each model is shown. Non-significant terms, removed from each model, are shown with NS. All trait data were corrected for variation in tree size (see Methods) and log₁₀-transformed