| | Sites |
|---|
Variables | TL | AL | FI | MA | MG |
|---|
No. trees (radii) | 24 (35) | 5 (10) | 18 (22) | 22 (32) | 15 (29) |
Tree-ring width (mm) | 0.95 ± 0.02 | 0.81 ± 0.03 | 0.77 ± 0.03 | 0.87 ± 0.04 | 0.60 ± 0.02 |
SD (mm) | 0.05 ± 0.02 | 0.03 ± 0.01 | 0.04 ± 0.01 | 0.04 ± 0.01 | 0.03 ± 0.01 |
AC1 | 0.57 | 0.61 | 0.73 | 0.65 | 0.61 |
MS | 0.23 ± 0.01 | 0.37 ± 0.02 | 0.32 ± 0.01 | 0.34 ± 0.01 | 0.29 ± 0.01 |
r
bt
| 0.49 | 0.54 | 0.53 | 0.52 | 0.60 |
EPS | 0.86 | 0.89 | 0.95 | 0.94 | 0.96 |
PC1 score | 0.47 | 0.40 | 0.42 | 0.49 | 0.45 |
PC2 score | 0.82 | −0.16 | −0.42 | −0.30 | −0.26 |
- The last two lines show the scores of the first (PC1) and second (PC2) principal components of a principal component analysis considering the five indexed tree-ring width chronologies. Sites’ codes are as in Table 1
- Statistics: mean and standard deviation (SD) of raw tree-ring width data; AC1, first-order autocorrelation of raw data, which measures the year-to-year persistence in ring width; MS, mean sensitivity of the residual ring-width series, which measures the year-to-year variability in the width index; r
bt, the mean between-trees correlation within each site which quantifies the similarity in residual width indices among trees; EPS, expressed population signal of residual series, which assesses the representativeness of the sample size compared with theoretical infinite population
