Table 1. The percentage contribution of environmental variables used in the five raptor species distribution model. Environmental variables are calculated at a resolution of about 1km.
Abbrev Variables predictors Percent contribution (%) Percent contribution (%) Percent contribution (%) Percent contribution (%) Percent contribution (%)
Bateleur Martial Eagle Steppe Eagle Southern ground hornbill Secretary bird
Aspect Aspect (o from 0 to 360) 0.9 1.9 1.9 1.4 1.5
bio13 Precipitation of the wettest month (mm) 5.9 5.3 6.2 7.1 9.9
bio14 Precipitation of the driest month (mm) 17.8 18.2 15.4 13.5 13.1
bio15 Precipitation seasonality (cv)a 12.1 9.2 9.0 11.5 8.4
bio18 Precipitation of the warmest quarter (mm) 16.7 14.9 19.9 21.8 14.0
bio19 Precipitation of the coldest quarter (mm) 14.3 13.8 10.3 8.9 12.3
bio3 Isothermality (%)b 5.5 6.2 4.4 5.0 8.7
bio7 Annual Temperature range (oC) 7.0 6.5 7.7 7.3 7.9
bio9 Mean temperature of the driest quarter (oC) 12.0 14.6 10.4 5.5 9.6
HII Human influence index 2.2 2.5 4.1 4.9 3.2
NDVI Normalized difference vegetation index (2013-2020) 4.1 4.9 8.5 4.7 8.3
Roughness Roughness (m) 1.6 1.9 2.0 8.4 2.9