Table 1. Outbreeding effects on resistance in 13 populations of Lychnis flos-cuculi.
| Source | DF | F | P | |
| 1-Proportion of leaf area damaged | Number of rosette leaves | 1 | 29.35 | 0.0001 |
| Initial snail mass | 1 | 4.27 | 0.0396 | |
| Population | 12 | 1.75 | 0.0548 | |
| Cross | 1 | 0.09 | 0.7627 | |
| Population × Cross | 11 | 1.16 | 0.3132 | |
| Family (Population) | 121 | 1.16 | 0.0848 | |
| Residual | 356 | |||
| Final snail mass | Initial snail mass | 1 | 1596.21 | 0.0001 |
| Population | 12 | 0.72 | 0.7317 | |
| Cross | 1 | 8.32 | 0.0042 | |
| Population × Cross | 11 | 1.62 | 0.0924 | |
| Family (Population) | 121 | 1.01 | 0.4582 | |
| Residual | 344 |
ANCOVA summary of effects of populations, cross and family on two measures of resistance to snail herbivory (1-proportion of leaf damaged; snail performance) in our snail herbivory experiment with plants resulting from two generations of within- and between-population crosses of plants from 13 populations of Lychnis flos-cuculi.