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. 2010 Jul 16;10:18. doi: 10.1186/1472-6785-10-18

Table 1.

Exploratory analyses of the effects of environment on diversity of birds and mammals.

OLS coeff. SAR coeff. Std. Coeff Std. Error P-value
Birds
Latitude 10.555 10.741 0.681 1.448 <0.001
Latitude 2 -0.733 -0.736 -0.221 0.228 0.002
PET -1.998 -2.006 -0.39 0.532 <0.001
Tmean 28.322 28.079 0.683 5.407 <0.001
Tmean 2 7.774 7.666 0.504 1.169 <0.001
NDVI 16.275 16.062 0.17 5.13 <0.001

Mammals
Latitude 1.043 1.058 0.783 0.088 <0.001
Latitude 2 -0.123 -0.12 -0.419 0.014 <0.001
PET -0.093 -0.088 -0.2 0.032 0.006
Tmean 1.331 1.27 0.36 0.32 <0.001
Tmean 2 0.133 0.132 0.101 0.07 <0.001
ARH 0.271 0.272 0.197 0.052 <0.001

Birds R2 (SAR): 0.515
Mammals R2 (SAR): 0.745

Spatial autoregressive analyses exploring the role of environmental conditions on avian richness and mammal richness. Lat = latitude, Lat2 = quadratic term of latitude, PET = potential evapotranspiration, Tmean = mean temperature, Tmean2 = quadratic term of mean temperature, NDVI = normalized difference vegetation index and ARH = annual relative humidity.