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. 2013 Nov 14;8(11):e79295. doi: 10.1371/journal.pone.0079295

Table 1. Predictor variables tested for habitat suitability modeling of small carnivores in Mudumalai Tiger Reserve.

Variable Code Source Type
Climate Bio1 = Annual Mean Temperature (°C) Worldclim Continuous
Bio 2 = Mean Diurnal Range (Mean of monthly (max temp – min temp) (°C) Bio2
Bio 3 = Isothermality (Bio2/Bio7) Bio3
Bio 4 = Temperature Seasonality (standard deviation x100) (°C)
Bio 5 = Max Temperature of Warmest Month (°C) Bio5
Bio 6 = Min Temperature of Coldest Month (°C)
Bio7 = Temperature Annual Range (Bio5–Bio6) (°C) Bio7
Bio 8 = Mean Temperature of Wettest Quarter (°C)
Bio 9 = Mean Temperature of Driest Quarter (°C)
Bio 10 = Mean Temperature of Warmest Quarter (°C)
Bio 11 = Mean Temperature of Coldest Quarter (°C)
Bio 12 = Annual Precipitation (mm)
Bio 13 = Precipitation of Wettest Month (mm)
Bio 14 = Precipitation of Driest Month (mm)
Bio 15 = Precipitation Seasonality (Coefficient of Variation) (Fraction)
Bio 16 = Precipitation of Wettest Quarter (mm)
Bio 17 = Precipitation of Driest Quarter (mm)
Bio 18 = Precipitation of Warmest Quarter (mm) Bio18
Bio 19 = Precipitation of Coldest Quarter (mm) Bio19
Elevation (m) SRTM Continuous
Slope (°) and Aspect (°) Calculated from SRTM Digital Elevation Model Continuous
Forest cover type 1 = water bodies Forest Survey of India Categorical
2 = non-forest
3 = scrub
4 = open forest
5 = dense forest
6 = very dense forest
Land-cover categories 1 = tropical evergreen Categorical
2 = subtropical evergreen
8 = moist deciduous
9 = dry deciduous
16 = degraded forest
Distance to the nearest village/tribal settlement (m) D2V field data(GPS locations) Continuous
Topography Wetness Index WI USGS Continuous
Actual evapo-transpiration AET CGIAR-CSI Continuous
Distance to the nearest water source (m) D2W DIVAGIS Continuous
Normalized Difference Vegetation Index NDVI AVHRR Continuous