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An analysis of covariance (ANCOVA) testing the effect of year, adjusted date, species and an interaction (adjusted date × species) on predicted caterpillar biomass availability. Variables included in the final model are presented in bold
| Source | ANCOVA | Model selection | ||
|---|---|---|---|---|
| t | df | F | P | |
| Intercept | 72.012 | 1.62 | ||
| Year | −0.660 | 1.61 | 0.436 | 0.512 |
| Adjusted date (AD) | −3.974 | 1.62 | ||
| Species (S) | −1.638 | 1.62 | ||
| AD × S | 2.949 | 1.62 | 8.698 | 0.004 |
Significant P-values in italic
