Table 1.
The effect of population size on the contribution of selection, history and chance to variation in growth rates after 200 generations of evolution in 5 gl−1 NaCl. Error here corresponds to variation among assay replicates.
| population size | effect | sum of squares | total sum of squares | relative sum of squares |
|---|---|---|---|---|
| small | selection | 38.1 | 98.4 | 0.387 |
| history | 18.4 | 0.187 | ||
| chance | 27.0 | 0.275 | ||
| error | 14.8 | 0.151 | ||
| medium | selection | 210 | 267 | 0.786 |
| history | 9.60 | 0.0359 | ||
| chance | 21.7 | 0.0810 | ||
| error | 26.0 | 0.0974 | ||
| large | selection | 210 | 261 | 0.806 |
| history | 6.40 | 0.0245 | ||
| chance | 29.8 | 0.114 | ||
| error | 14.6 | 0.0560 |