Relative level of support by competing models explaining plant biomass consumed in foraging craters by plains bison in winter.

Note: E: Plant profitability (kJ/min) in the landscape, meadow or patch, SWE: Snow water equivalent (cm), MOC: Missed opportunity costs (kJ/min), Wolf: Index of wolf presence, ln(MS): log-transformed meadow size (ha), ΔAIC: difference in Akaike information criterion between the current model and the lowest AIC.