Fig. 2From: Site conditions influence the climate signal of intra-annual density fluctuations in tree rings of Q. ilex L.IADF frequency chronologies aligned by cambial age and tree ring width classes (SW in red, NE in black). P = Pearson product-moment correlation coefficient between each series and cambial age/tree ring width, and R2 of the fitted polynomial curves (P < 0.001)Back to article page