Table 2. Analysis of variance of life-history traits of the host-parasitoid interaction in experiment 1.
| Parameters | df | Successful encapsulation rate (square root-transformed) | Parasitism rate (arcsine square root-transformed) | Parasitoid developmental success (square root-transformed) | Number of parasitoid offspring (square root-transformed) | Drosophila relative survival (log-transformed) | |||||
| F | P | F | P | F | P | F | P | F | P | ||
| Block (1) | 1 | 11.25 | 0.001* | 2.04 | 0.15 | 3.55 | 0.06 | 1.74 | 0.19 | 10.65 | 0.001* |
| Drosophila nuclear background (2) | 3 | 4.08 | 0.008* | 5.71 | 0.0009* | 15.89 | <0.0001* | 36.15 | <0.0001* | 8.36 | <0.0001* |
| Virus (3) | 1 | 46.55 | <0.0001* | 3.65 | 0.06 | 8.47 | 0.004* | 0.88 | 0.35 | 31.93 | <0.0001* |
| Wolbachia (4) | 1 | 1.15 | 0.28 | 0.0001 | 0.99 | 5.99 | 0.02* | 3.73 | 0.054 | 0.21 | 0.65 |
| interactions | |||||||||||
| (1)×(2) | 3 | 2.38 | 0.07 | 1.05 | 0.37 | 1.39 | 0.25 | 0.84 | 0.48 | 0.31 | 0.82 |
| (1)×(3) | 1 | 0.2 | 0.65 | 4.47 | 0.04* | 0.27 | 0.6 | 0.002 | 0.97 | 5.68 | 0.02* |
| (2)×(3) | 3 | 4.11 | 0.007* | 0.2 | 0.89 | 2.68 | 0.05* | 1.97 | 0.12 | 1.5 | 0.22 |
| (1)×(4) | 1 | 0.17 | 0.68 | 10.68 | 0.001* | 0.37 | 0.54 | 1.71 | 0.19 | 15.7 | 0.0001* |
| (2)×(4) | 3 | 0.08 | 0.97 | 4.95 | 0.002* | 4.13 | 0.007* | 5.39 | 0.001* | 3.92 | 0.009* |
| (3)×(4) | 1 | 3.52 | 0.06 | 5.98 | 0.02* | 0.02 | 0.89 | 3.09 | 0.08 | 7.2 | 0.008* |
| (1)×(2)×(3) | 3 | 0.35 | 0.79 | 2.99 | 0.03* | 6.5 | 0.0003* | 6.74 | 0.0002* | 4.06 | 0.008* |
| (1)×(2)×(4) | 3 | 0.69 | 0.55 | 0.35 | 0.79 | 2.45 | 0.06 | 0.66 | 0.57 | 1.06 | 0.37 |
| (1)×(3)×(4) | 1 | 7.21 | 0.008* | 3.45 | 0.06 | 0.32 | 0.57 | 0.004 | 0.94 | 11.33 | 0.0009* |
| (2)×(3)×(4) | 3 | 8.69 | <0.0001* | 1.38 | 0.25 | 1.27 | 0.29 | 0.58 | 0.63 | 4.76 | 0.003* |
| (1)×(2)×(3)×(4) | 3 | 4.2 | 0.007* | 4.08 | 0.008* | 0.58 | 0.63 | 0.63 | 0.59 | 6.65 | 0.0003* |
| residuals | 191 | ||||||||||
*
significant effect. Level of significance is α = 5%.