Figure 4.22 Mixed diets. Young grasshoppers grow faster on mixed diets than on any single diet, regardless of whether comparisons were made using (a) crop plants or (b) natural plants. In general, mixed diets supply a more complete range of nutrients needed by animals than single diets. Error bars are standard errors.
After E. A. Bernays et al., Dietary mixing in a generalist herbivore: Tests of two hypotheses, Ecology 75 (1994): 1997–2006.