Table 1.
Regressions of survivorship and larval mass on distance from edge of corn field and pollen deposition
| Array | Degrees of freedom | Mean squares | F statistic | Probability | Regression coefficient |
|---|---|---|---|---|---|
| First | |||||
| Survivorship vs. pollen | |||||
| Linear model | 1 | 193.5 | 0.635 | 0.484 | 0.116 |
| Residual | 3 | 304.6 | |||
| Survivorship vs. distance | |||||
| Linear model | 1 | 35.9 | 0.100 | 0.772 | −1.13 |
| Residual | 3 | 357.1 | |||
| Mass vs. pollen | |||||
| Linear model | 1 | 154.4 | 2.98 | 0.183 | −0.103 |
| Residual | 3 | 51.8 | |||
| Mass vs. distance | |||||
| Exp. model | 1 | 0.074 | 7.016 | 0.077 | 0.128 |
| Residual | 3 | 0.011 | |||
| Second | |||||
| Survivorship vs. pollen | |||||
| Exp. model | 1 | 0.002 | 0.014 | 0.913 | −0.088 |
| Residual | 3 | 0.143 | |||
| Survivorship vs. distance | |||||
| Log model | 1 | 212.7 | 1.799 | 0.273 | −6.21 |
| Residual | 3 | 118.4 | |||
| Mass vs. pollen | |||||
| Exp model | 1 | 0.0073 | 1.183 | 0.356 | 0.168 |
| Residual | 3 | 0.0062 | |||
| Mass vs. distance | |||||
| Log model | 1 | 142.1 | 0.528 | 0.526 | −5.65 |
| Residual | 3 | 277.0 |
All analyses are based on means. Only the best fitting of the linear, logarithmic, and power models are presented.