Table 1. Set of ecogeographical variables (EGVs) used for modelling the potential distribution of lions, leopards and spotted hyaenas in Tanzania's Ruaha landscape.
Ecogeographical Features | Source | Original Resolution |
Bioclimatic variables | ||
Annual precipitation | WorldClim database [60], v. 1.04. http://www.worldclim.org/current | 30 arc-seconds (∼1 km) |
Landscape features | ||
Digital elevation model | Shuttle Radar Topography Mission. http://www.landcover.org/data/srtm/ | 3 arc-seconds (90 m)* |
Slope | Derived from digital elevation model | - |
Normalized Difference Vegetation Index – NDVI | MODIS Terra - MOD13A. http://glovis.usgs.gov/ | 5001 m* |
Vegetation Continuous Fields - VCF | ftp://ftp.glcf.umd.edu/modis/VCF/Collection_5/ | 250 m* |
Geology - Cation Exchange Capacity | http://www.isric.org/data/soil-property-maps-africa-1-km | 1 km |
Distance to water bodies | Derived from http://www.fao.org/geonetwork/srv/en/metadata.show?id=2002&currTab=simple | - |
Human Disturbance | ||
Distance to human households | Derived from Ruaha Carnivore Project Data | - |
*Raster files converted to ∼1 km×1 km cell size.