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Table 5 Factor loadings of climate variables (base climate, 2050 and 2070) of selected 153 N2K PAs in the Mediterranean biogeographical region on PCA axes 1 and 2

From: Predicting the effectiveness of protected areas of Natura 2000 under climate change

Climate variable Factor loadings
Base climate
Factor loadings
2050 (RCP 4.5)
Factor loadings
2070 (RCP 8.5)
PC1 PC2 PC 1 PC2 PC1 PC2
Ann temp − 0.32 − 0.07 − 0.32 0.37 − 0.32 − 0.08
M-temp range − 0.02 0.33 − 0.05 0.11 − 0.06 0.39
Isotherm − 0.06 0.11 − 0.08 0.39 − 0.08 0.12
Temp seas 0.06 0.34 0.01 0.26 − 0.001 0.41
Warmest m-temp − 0.26 0.21 − 0.24 − 0.07 − 0.23 0.27
Coldest m-temp − 0.28 − 0.22 − 0.26 − 0.27 − 0.24 − 0.31
Ann-temp range 0.01 0.38 − 0.01 0.42 − 0.03 0.44
Wettest q-temp − 0.12 − 0.01 − 0.13 − 0.19 − 0.17 − 0.21
Driest q-temp − 0.23 − 0.03 − 0.27 0.07 − 0.29 0.11
Warmest q-temp − 0.32 0.04 − 0.31 0.08 − 0.30 0.09
Coldest q-temp − 0.31 − 0.15 − 0.29 − 0.21 − 0.28 − 0.23
Ann precip 0.25 − 0.24 0.26 − 0.14 0.27 − 0.09
Wettest m-precip 0.09 − 0.37 0.07 − 0.33 0.13 − 0.21
Driest m-precip 0.33 0.01 0.32 0.04 0.31 0.08
Precip seas − 0.27 − 0.19 − 0.26 − 0.19 − 0.21 − 0.19
Wettest q-precip 0.09 − 0.36 0.11 − 0.27 0.17 − 0.19
Driest q-precip 0.32 0.01 0.31 0.02 0.31 0.07
Warmest q-precip 0.30 − 0.02 0.29 − 0.04 0.28 − 0.01
Coldest q-precip 0.03 − 0.31 0.08 − 0.11 0.15 − 0.12