Table 1 Descriptions and sources of environmental variables used in resource selection models
From: Individual-level patterns of resource selection do not predict hotspots of contact
Variables | Descriptions | Sources |
|---|---|---|
Dynamic daily variables | ||
Tmax | Daily maximum temperature | GridMET |
Tmin | Daily minimum temperature | |
Trange | Daily difference of temperature | |
Vp | Daily vaper pressure | |
Prcp | Daily precipitation | |
Rhum | Daily average relative humidity | |
NDVI | Daily normalized difference vegetation index | MODIS MOD09GA products |
Food | Daily binary layer of artificial food availability (i.e., cattle supplements in the FL site, pig baits in TX sites) | Field records |
Static variables | ||
Water | Binary layer of surface water body (i.e., freshwater pond) and large ditches that might hold water after rainfalls | Field data and National Wetlands Inventory |
Wetland | Binary layer of wetland land cover | |
Road | Binary layer of road | Field data and Texas Department of Transportation |
Fence (FL only) | Binary layer of fence | Field data |
Ditch (FL only) | Binary layer of ditches | Field data |
Tree canopy | Percentage of tree canopy | NLCD |
Trail (TX only) | Binary layer of trails | Digitalized based on satellite image |