![]() Differences between families explained the largest amount of variability for most traits, although intraspecific variability was also relevant.We measured leaf mass per area (LMA), leaf nitrogen (N) concentration, carbon isotope composition in leaves (δ 13C), stem wood density, the Huber value (Hv, the ratio of cross-sectional sapwood area to leaf area), sapwood-specific and leaf-specific stem hydraulic conductivity, vulnerability to xylem embolism ( P 50) and the turgor loss point ( P tlp). For six dominant tree species in northeastern Spain (three Fagaceae and three Pinaceae) we quantified the inter- and intraspecific variability of a set of traits along a water availability gradient.However, we know little about how this variability is distributed and coordinated at different organizational levels. ![]() ![]() ![]() Trait variability in space and time allows plants to adjust to changing environmental conditions. ![]()
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