Table 3.

Environmental response of the functional groups (F1–F3) that emerged from the clustering of selected trait combinations. The coefficient of determination (R²) is provided only for the significant univariate models along with the direction of either linear (+,−) or hump-shaped relationships (∩). Abbreviations of environmental variables as in Supplementary Data Table S2. Non-significant relationships are denoted by n.s. For the following models, the Hosmer–Lemeshow goodness-of-fit test (HL; d.f. = 9) suggested a lack of fit: F1–Soil.OM (HL: 21.53; P = 0.01), F1–ET.JJA (HL: 17.33, P = 0.04).

	F1	F2	F3
Habitat variables
FSL	n.s.	n.s.	n.s.
Onset	n.s.	n.s.	n.s.
Soil.pH	n.s.	n.s.	n.s.
Soil.OM	0.17 (+)	n.s.	n.s.
Soil.CN	0.31 (+)	n.s.	n.s.
TPI	n.s.	n.s.	n.s.
NDVI	0.24 (+)	0.14 (−)	n.s.
NDVI.var	n.s.	n.s.	n.s.
Climate variables
TempSoil.J	0.25 (-)	n.s.	0.55 (+)
TempAir.JJA	n.s.	0.15 (−)	0.18 (+)
Rad.J	0.26 (−)	n.s.	n.s.
TempAirMin.GS	n.s.	0.40 (−)	0.18 (+)
ET.JJA	0.33 (∩)	n.s.	0.48 (+)
PET.J	0.40 (-)	0.17 (+)	n.s.