Nature 419, 826–830 (2002).

The neutrality test equation applied in this Letter (F = (Neσ2GB)/(h2σ2GWt)) was incorrect: the correct equation is F = (Neσ2GB)/(σ2GWt). Consequently, the numbers in the right three columns of the original Table 1 are wrong. Click here for corrected section of Table 1. In addition, some variance estimates in Table 1 and some values of Fig. 2 were reported incorrectly (the entire correct Table 1 and the correct Fig. 2 are available from the authors). These errors do not affect our conclusion that the populations evolved predominantly as a result of natural selection. We thank W. G. Hill for bringing these errors to our attention.

Table 1