Fig. 1 Natural variation in nutrient storage due to for. (A) Rover (for^R) larvae store a larger proportion of ingested ¹⁴C in their lipid stores whereas sitter larvae (for^s and for^s2) store a larger proportion in their carbohydrate stores. (B) Well-fed mid-third-instar for^R, for^s and for^s2 larvae differ in total body carbohydrate but not lipid or protein stores. (C) Well-fed for^R larvae have significantly lower carbohydrate levels in fat body but not in hemolymph (D) compared with for^s and for^s2 larvae. Error bars indicate means ± s.e.m.