Fig. 4From: Exploring the environmental drivers of waterfowl movement in arid landscapes using first-passage time analysisThree panels which represent a gradient of mean values of mean first-passage time (mFPTRmax) and environmental variables within utilisation distribution polygons. These data illustrate the positive relationship between FPT and a 32-day lag in NDVI and precipitation (e.g. dark red, dark green and dark blue polygons represent sites at which FPT and environmental variables were strongly positively correlated). ΔNDVIt-32, the difference between mean NDVI within a polygon at time t and t-32 days; ΔPrecipt-32, the difference between precipitation within a polygon at time t and t-32 days measured in mm. Note that mFPTRmax was measured in hours and has been logged transformedBack to article page