Figure 2.16 Proportion of amino acid carbon derived from the adult diet in eggs of the hawkmoth Amphion floridensis, measured using stable isotopes.

Note: Data are for eggs laid on day 12, when carbon isotopic composition has stabilized (see O'Brien et al. 2000). All essential amino acids are within measurement error of zero, indicating their exclusive origin in the larval diet.

Source: O'Brien et al. (2002). Proceedings of the National Academy of Sciences of the USA 99, 4413-4418. © 2002 National Academy of Sciences, U.S.A.

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