3.3 Wood density effects
The presence and strength of local adaptation (sympatry/allopatry) was significantly associated with species-level wood density for survival (R 2 = 0.47, P = 0.003), and height increment (R 2 = 0.33, P = 0.031), but not inherent growth rate (R 2 = 0.02, P = 0.597) (Figure 4). As a result, species with lower wood density were more likely to display provenance differentiation consistent with local adaptation, whereas species with higher wood density were more likely to by maladapted.