Table 2.
Fluid and insect parameters affecting retention rates
| Explanatory variable |
ndf | χ2 | P |
|---|---|---|---|
| Visco | 1 | 688·77 | <0·0001 |
| pH | 1 | 44·20 | <0·0001 |
| InsectType | 1 | 4·78 | 0·0312 |
| InsectSpecies(InsectType) | 2 | 7·39 | 0·0367 |
| FallOrientation(InsectType) | 1 | 14·31 | 0·0002 |
| Visco × InsectType | 1 | 44·00 | <0·0001 |
| pH × InsectType | 1 | 23·28 | <0·0001 |
| Visco × InsectSpecies(InsectType) | 2 | 58·86 | <0·0001 |
| pH × InsectSpecies(InsectType) | 2 | 5·85 | 0·0537 |
Results of a nested logistic regression model testing for the effects of the fluid’s viscoelasticity (considered as a quantitative variable), the fluid’s pH, the type of insect and the insect species on insect retention rates. Dependent variable = insect retention (0/1).