Table 1.
Abbreviations, units, and classifications for the 26 functional traits and six climatic niche descriptors of the 42 species used in this study.
| Abbreviation and unit | Trait classification | |
| Plant functional traits | ||
| Plant height | H (cm) | Structural |
| Leaf area | LA (cm2) | Structural |
| Leaf thickness | LT (µm) | Structural |
| Specific leaf area | SLA (cm2 g–1) | Structural |
| Leaf dry matter content | LDMC (%) | Structural |
| Leaf interveinal distance | IVD (µm) | Structural |
| Maximum diameter of leaf vein bundles | Dlvb (µm) | Structural |
| Leaf to stem area ratio | A L/AS (cm2 mm–2) | Structural |
| Stomatal size | sts (µm2) | Structural |
| Stomatal density | std (mm–2) | Structural |
| Stem cross-section area | SS (mm2) | Structural |
| Diameter of stem vessels | Dsv (µm) | Structural |
| Stem vessel density | SVD (mm–2) | Structural |
| Stem density | SD (g cm–3) | Structural |
| Leaf carbon content | LC (%) | Structural |
| Leaf hydraulic conductance | K leaf (mmol m–2 s–1 MPa–1) | Physiological |
| Stem vessel area specific hydraulic conductivity | K S (kg m–1 s–1 MPa–1) | Physiological |
| Leaf specific hydraulic conductivity | K L (10–4 kg m–1 s–1 MPa–1) | Physiological |
| Predawn leaf water potential | Ψ pre (MPa) | Physiological |
| Midday leaf water potential | Ψ mid (MPa) | Physiological |
| Leaf turgor loss point | Ψ tlp (MPa) | Physiological |
| Photosynthetic rate | A (µmol m–2 s–1) | Physiological |
| Stomatal conductance | g s (mol m–2 s–1) | Physiological |
| Maximum stomatal conductance to water vapour | g wmax (mol m–2 s–1) | Physiological |
| Intrinsic water use efficiency | WUEi (µmol mol–1) | Physiological |
| Leaf δ13C | Leaf δ13C (‰) | Physiological |
| Niche descriptors | ||
| Mean annual precipitation for each species | MAP (mm) | — |
| Mean annual temperature for each species | MAT (°C) | — |
| Seasonality of annual precipitation | Ps | — |
| Seasonality of annual temperature | Ts | — |
| Mean tree cover in local habitats | Tree cover (%) | — |
| Mean wet days per year in local habitats | Wet days per year | — |
See Supplementary Table S2 for the original data.