Table 1.
Summary of the mixed model for the analysis of the damage caused by the pine weevil on young pine trees of three pine populations after 6 days of feeding under a factorial combination of light availability (sunlight/darkness) applied to the plant and to the insect.
| Total debarked area | ||||
|---|---|---|---|---|
| Effect | DF | F | p > F | |
| Light on plant (LP) | 1,54 | 0.0 | 0.859 | |
| Light on insect (LI) | 1,54 | 9.7 | 0.003 | |
| LP × LI | 1,54 | 0.3 | 0.564 | |
| Pine population (POP) | 2,54 | 3.3 | 0.044 | |
| LP × POP | 2,54 | 0.2 | 0.814 | |
| LI × POP | 2,54 | 2.1 | 0.130 | |
| LP × LI × POP | 2,54 | 1.6 | 0.207 | |
| Weevil weight | 1,54 | 4.0 | 0.051 | |
Degrees of freedom (DF), F ratios, and associated probability levels are shown. Significant effects (p < 0.05) are highlighted in bold font. The size of pine weevils (weevil weight) was included as a covariate in the model.