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Fig. 1.
13C
values (mean ± s.e.m.) of inseminated
spermathecae from experiment 1. The adult labelling treatments were:
UU, no label; UL, adult labelling only; LU, larval
labelling only; and LL, larval and adult labelling. N, number
of samples analysed. The dotted line indicates the threshold value of 2 s.d.
above mean
13C
of virgin females. Virgin (V) and
standard (St) samples are included. Values excluded from analyses are: 9.97
(LL), 12.51 (V) and, 13.29, 18.20 (St). Dissection
treatments: I, females dissected immediately after mating; II, females
isolated and dissected 3 days after mating. Values with different letters are
significantly different at P<0.05 for I (lower case), or II (upper
case).