Table 8.
Parameter estimates from the null and best-fit statistical models describing per host net egg output
Negative binomial count component parameters | Bernoulli component parameters | |||||||||||
Population | Model | ln(λ1) (SE) |
β (SE) |
c (SE) |
γ1 (SE) |
γ2 (SE) |
γ3 (SE) |
k (SE) |
δ0 (SE) |
δ1 (SE) |
δ2 (SE) |
δ3 (SE) |
Baseline | 1 (null) | 5.98*** (0.081) |
-0.14* (0.068) |
0.79*** (0.033) |
- | - | - | 0.61 (0.020) |
- | - | - | - |
3 (best-fit) | 6.18*** (0.096) |
-0.29*** (0.069) |
00.74*** (0.036) |
0.20*** (0.026) |
-0.046** (0.015) |
- | 0.63 (0.021) |
- | - | - | - | |
1I (null) | 6.25*** (0.066) |
-0.20*** (0.053) |
0.70*** (0.027) |
- | - | - | 1.08 (0.034) |
0.49* (0.24) |
-0.23 (0.28) |
-1.02*** (0.14) |
-1.78*** (0.18) |
|
4I (best-fit) | 6.26*** (0.076) |
-0.28*** (0.055) |
0.70*** (0.027) |
0.18*** (0.034) |
-0.00062 (0.014) |
-0.015* (0.0060) |
1.10 (0.034) |
0.49* (0.24) |
-0.23 (0.28) |
-1.01*** (0.14) |
-1.78*** (0.18) |
|
1st re-infection | 1 (null) | 5.08*** (0.089) |
0.023 (0.078) |
1.12*** (0.038) |
- | - | - | 0.82 (0.036) |
- | - | - | - |
4 (best-fit) | 5.17*** (0.099) |
-0.051 (0.076) |
1.11*** (0.039) |
0.19** (0.063) |
-0.082** (0.031) |
0.039* (0.017) |
0.86 (0.038) |
- | - | - | - | |
1I (null) | 5.31*** (0.081) |
0.024 (0.065) |
1.02*** (0.035) |
- | - | - | 1.28 (0.044) |
0.91* (0.44) |
0.52 (0.40) |
-2.00*** (0.33) |
-2.65*** (0.37) |
|
2I (best-fit) | 5.28*** (0.080) |
-0.027 (0.065) |
1.04*** (0.034) |
0.18*** (0.037) |
- | - | 1.31 (0.04) |
0.91* (0.44) |
0.51 (0.40) |
-2.00*** (0.33) |
-2.64*** (0.37) |
|
2nd re-infection | 1 (null) | 5.71*** (0.10) |
-0.17 (0.10) |
0.81*** (0.047) |
- | - | - | 0.71 (0.035) |
- | - | - | - |
3 (best-fit) | 5.77*** (0.11) |
-0.23* (0.10) |
0.82*** (0.049) |
0.27*** (0.047) |
-0.078* (0.033) |
- | 0.74 (0.037) |
- | - | - | - | |
1I (null) | 5.95*** (0.087) |
-0.14 (0.077) |
0.71*** (0.040) |
- | - | - | 1.23 (0.05) |
0.63 (0.41) |
1.07** (0.41) |
-1.62*** (0.29) |
-2.56*** (0.39) |
|
2I (best-fit) | 5.92*** (0.086) |
-0.19* (0.079) |
0.72*** (0.040) |
0.11** (0.042) |
- | - | 1.24 (0.050) |
0.63 (0.41) |
1.07** (0.41) |
-1.63*** (0.29) |
-2.56*** (0.39) |
Estimated parameter values from the best-fit NB and ZINB models in each population. Parameters significantly different from 0: * p-value < 0.05, ** p-value < 0.01, ***p-value < 0.001. Model equations are given in Table 4.