Fig. 3

Effects of temperature (upper two panels, shown for each boreal zone) and snow depth (lowest panel) on raccoon dog and red fox snow-track indices in forest and field triangles, illustrated as predicted snow-track indices (tracks / 10 km / day; shadowed areas are 95% confidence intervals). The prediction for snow is shown for the Southern Boreal zone (snow had nonsignificant interaction with zone, that is, zones have identical slopes for the prediction).