From: Ecological Niche Modelling of the Bacillus anthracis A1.a sub-lineage in Kazakhstan
| Environmental Variable (unit) | Name | Source |
|---|---|---|
| Elevation (m) | Altitude | WorldClim* |
| Annual Temperature Range (°C) | BIO7 | WorldClim |
| Annual Mean Temperature (°C) | BIO1 | WorldClim |
| Precipitation of Driest Month (mm) | BIO14 | WorldClim |
| Precipitation of Wettest Month (mm) | BIO13 | WorldClim |
| Annual Precipitation (mm) | BIO12 | WorldClim |
| NDVI Amplitude (no units) | wd1014 a1 | TALA† |
| Mean NDVI (no units) | wd1014 a0 | TALA |
| Soil pH (-log(H+)) | HWSD‡ | |
| Topsoil Calcium (% weight) | HWSD | |
| Topsoil Organic Content (% weight) | HWSD | |
| Subsoil Base Saturation (%) | HWSD |