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. 2017 Aug 14;17:188. doi: 10.1186/s12862-017-1038-4

Table 1.

Topological and bioclimatic variables considered for niche modelling in this study, with mean AUC values and correlation coefficients for each variable pair

Variable Mean AUC ALT Bio1 Bio2 Bio3 Bio4 Bio5 Bio6 Bio7 Bio8 Bio9 Bio10 Bio11 Bio12 Bio13 Bio14 Bio15 Bio16 Bio17 Bio18
ALTa 0.79
Bio1 0.77 −0.08
Bio2a 0.81 −0.16 −0.54
Bio3 0.85 0.31 0.83 −0.63
Bio4 0.84 −0.31 −0.89 0.66 −0.96
Bio5a 0.87 −0.79 0.17 0.46 −0.29 0.27
Bio6 0.83 0.11 0.96 −0.68 0.93 −0.97 −0.09
Bio7a 0.91 −0.28 −0.88 0.75 −0.95 0.99 0.31 −0.97
Bio8a 0.82 −0.21 0.60 −0.40 0.41 −0.47 0.19 0.55 −0.48
Bio9 0.81 0.01 0.89 −0.45 0.77 −0.83 0.07 0.87 −0.82 0.27
Bio10 0.84 −0.77 0.55 0.02 0.07 −0.11 0.87 0.32 −0.11 0.43 0.42
Bio11 0.82 0.11 0.98 −0.62 0.92 −0.97 −0.04 1.00 −0.96 0.55 0.89 0.35
Bio12a 0.86 0.18 0.59 −0.61 0.73 −0.68 −0.25 0.68 −0.70 0.22 0.59 0.06 0.65
Bio13 0.83 0.27 0.65 −0.59 0.71 −0.73 −0.22 0.72 −0.74 0.32 0.60 0.08 0.71 0.88
Bio14 0.89 −0.06 0.25 −0.39 0.43 −0.29 −0.18 0.32 −0.35 −0.01 0.33 0.04 0.28 0.71 0.36
Bio15a 0.87 0.24 0.46 −0.16 0.32 −0.46 0.03 0.43 −0.40 0.42 0.31 0.14 0.46 −0.02 0.38 −0.57
Bio16 0.83 0.26 0.66 −0.60 0.72 −0.74 −0.23 0.73 −0.75 0.33 0.61 0.08 0.72 0.91 0.99 0.41 0.34
Bio17a 0.93 −0.06 0.28 −0.41 0.45 −0.31 −0.17 0.35 −0.37 −0.01 0.35 0.06 0.31 0.74 0.38 0.99 −0.56 0.43
Bio18a 0.84 0.25 0.52 −0.56 0.59 −0.60 −0.32 0.59 −0.63 0.35 0.45 0.02 0.57 0.72 0.68 0.45 0.18 0.72 0.47
Bio19 0.87 −0.01 0.42 −0.42 0.56 −0.45 −0.10 0.48 −0.49 0.08 0.47 0.12 0.45 0.84 0.67 0.77 −0.25 0.69 0.79 0.40

Abbreviations: ALT Altitude, Bio1 Annual mean temperature, Bio2 Mean diurnal range (Mean of monthly (max temperature – min temperature)), Bio3 Isothermality (Bio2/Bio7 × 100), Bio4 Temperature seasonality (standard deviation × 100), Bio5 Maximum temperature of warmest month, Bio6 Minimum temperature of coldest month, Bio7 Temperature Annual Range (Bio5–Bio6), Bio8 Mean temperature of wettest quarter, Bio9 Mean temperature of driest quarter, Bio10 Mean temperature of warmest quarter, Bio11 Mean temperature of coldest quarter, Bio12 Annual precipitation, Bio13 Precipitation of wettest month, Bio14 Precipitation of driest month, Bio15 Precipitation seasonality (coefficient of variation), Bio16 Precipitation of wettest quarter, Bio17 Precipitation of driest quarter, Bio18 Precipitation of warmest quarter, Bio19 Precipitation of coldest quarter. Temperature is given in °C, precipitation in mm. Variables used to construct ecological niche models are indicated witha. Correlation coefficients ≥0.8 are indicated using bold font