Fig. 5

Pearson’s correlation coefficients between standardised TRW and climate variables at a seasonal scale during the whole common period 1961–2008 (a) and from the 1980s (b). The dark bar charts indicate significant values. *: p < 0.05; **: p < 0.01; ***: p < 0.001. The shaded areas indicate the common climatic predictors driving radial growth at monthly and seasonal scale