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. 2020 Jul 10;10:11473. doi: 10.1038/s41598-020-68167-z

Table 2.

The set of 40 predictor variables used in the multi-scale habitat modelling of tiger and leopard. First and second columns represent the type and the name of the variables, and third and fourth columns represent scale at which each predictor best explained the occurrence of tiger and leopard respectively.

Variable Type Variable Best scale (tiger) Best scale (leopard)
Topographic Elevation 24,500 24,500
Slope 17,500 14,000
Aspect 3,500 28,000
Terrain roughness 24,500 17,500
River density 1,000, 2,000, 3,000 1,000, 2,000, 3,000
Climatic Bio1 28,000 24,500
Bio2 28,000 24,500
Bio3 17,500 24,500
Bio4 7,000 21,000
Bio5 21,000 7,000
Bio6 21,000 14,000
Bio7 21,000 7,000
Bio8 28,000 24,500
Bio9 28,000 24,500
Bio10 28,000 28,000
Bio11 14,000 21,000
Bio12 7,000 24,500
Bio13 7,000 3,500
Bio14 14,000 10,500
Bio15 28,000 28,000
Bio16 7,000 28,000
Bio17 28,000 28,000
Bio18 24,500 7,000
Bio19 17,500 17,500
Actual evapotranspiration (summer) 10,500 NA
Actual evapotranspiration (monsoon) 17,500 NA
Actual evapotranspiration (winter) NA NA
Landscape composition Sal dominated 28,000 21,000
Sal mix 28,000 21,000
Dry deciduous 24,500 28,000
Moist deciduous 28,000 14,000
Degraded 3,500 24,500
Scrub 28,000 21,000
Vegetation cover NDVI (summer) 7,000 14,000
NDVI (winter) 21,000 17,500
NDVI (monsoon) 28,000 10,500
Human influenced Human settlements 7,000 28,000
Human population density 3,500 21,000
Road density 1,000, 3,000, 4,000 1,000, 3,000, 4,000
Farmlands (croplands) 7,000 10,500

Predictor variables are classified in five groups (Topographic, climatic, landscape composition, vegetation and human influenced). Road and river density were calculated at four different spatial scales (1, 2, 3, 4 km). Actual evapotranspiration were not used in the models of leopard and in case of tiger, actual evapotranspiration in winter season was not used.