Fig. 5. Relative abundance of Tnt F in fall armyworm moths as a function of total mass (body+added load). Superimposed on the plot are gray points showing the unladen body mass of the weight-manipulated individuals, with horizontal lines connecting their unladen mass to their total mass after attachment of a weight load. The vertical distance from the fitted line to the gray points is the difference between the observed and predicted Tnt F relative abundance if there had been no adjustment of Tnt F to the added weight. The reduced unladen body mass of the fully fed weight-loaded moths was presumably caused by the increased cost of activity over 5 days while weight loaded or by active reduction in body mass, or both.