Patterns of Allocation CSR Plant Functional Types in Northern Europe

Table 1

Definition (units) of the predictor variables and method for its transformation in models.

Code	Trait name (units)	Transformation
CH	Canopy height (mm)	Natural
LDMC	Dry matter content in the fully hydrated leaves from the middle of stem (%)	Square root
FS	Flowering start ((1) first flowering in March; (2) April; (3) May; (4) June; (5) July; and (6) August)	—
FP	Normal duration of flowering period (months)	—
LS	Lateral spread. Six-point classification [11]	—
LDW	Leaf dry weight of the fully hydrated leaves from the middle of stem (mg)	Natural logarithm plus 3
SLA	Specific leaf area is area/dry weight (mm^2/mg)	Square root
PN	Photosynthetic capacity (mg CO2/g dry weight per hour)	Square root
RD	Respiration rate in dark (mg CO2/g dry weight per hour)	Square root
LNC	Leaf nitrogen concentration (mg/g)	Square root
LCC	Leaf carbon concentration (mg/g)	Square root

et al. [11] used a point system to assess height. However, we used continuous transformation of natural logarithm in order to reduce the information losses.