The published version of this paper omitted the URL to the supplementary material mentioned in the text. This supplementary material refers to Web Table 1, Web Table 2 and Web Table 3 and the material is available from http://journals.cambridge.org/grh and is described below.
Supplementary Web Table 1. Phenotypic correlations (Spearman's rank-order correlation coefficient) between pairs of life-history traits of T1 individuals and of T2 individuals in the two populations studied of Biomphalaria pfeifferi.
Supplementary Web Table 2. Phenotypic correlations (Spearman's rank-order correlation coefficient) between pairs of copulation parameters for T2 individuals in the two populations studied of Biomphalaria pfeifferi.
Supplementary Web Table 3. Phenotypic correlations (Spearman's rank-order correlation coefficient) between some copulation parameters on one side and some life-history traits on the other of T2 individuals in the two populations of Biomphalaria pfeifferi.