Table 3. Variables considered in the development of the LM.
| Variable | Time span | Source | comments |
| Monthly maximum Temperature (TMAX) | Jan–Dec 2000 | CRU TS 2.1 | Kriged to 6 km |
| *Monthly minimum Temperature | Jan–Dec 2000 | CRU TS 2.1 | Kriged to 6 km |
| Precipitation | Jan–Dec 2000 | CRU TS 2.1 | Kriged to 6 km |
| Wet Days | Jan–Dec 2000 | CRU TS 3.0 | Kriged to 6 km |
| NDVI | 2000–2007 | MODIS | 16-day imagery |
| *Cattle density | 2005 estimate | FAO glbctd1t0503m | 0.05° resolution |
| *Elevation | 1996 | USGS GTOPO30 | |
| Tsetse distribution | 2000 | PAATIS/FAO | Continuous;modeled |
| Tsetse distribution | 1973 | PAATIS/FAO | Presence/absence |
| Tsetse distribution | 1996 | PAATIS/FAO | Presence/absence |
| *FAPAR (Fraction of Available Photosynthetically Active Radiation) | 2000–2005 | WDCC Hamburg | Redundant with NDVI |
| Land Cover | 2000 | GLC2000 | Binary suitability |
*- examined but ultimately omitted from the model.