Table 2.
Risk effects of model parameters and Qo. Risk effects measure the direction and magnitude of change in the probability of host extinction, when a parameter is varied from its minimum to its maximum value. Only risk effects over 0.1 are shown; dash (—) represents lower values. Data columns 1 and 3: tadpoles suffer from infection. Data columns 2 and 4: tadpoles tolerate infection. Data columns 1 and 2: Zo sampled from 10 to 1015. Data columns 3 and 4: Zo = 0. All model parameters were sampled in their entire range, given in table 1. Similar results were obtained for the stochastic model.
| parameter |
Zo > 0 |
Zo = 0 |
||
|---|---|---|---|---|
| suffer | tolerate | suffer | tolerate | |
| Qo | +0.66 | +0.83 | +0.81 | +0.71 |
| Zo | +0.66 | +0.78 | n.a. | n.a. |
 |
−0.38 | −0.47 | −0.17 | −0.28 |
| μZ | −0.11 | −0.20 | −0.44 | −0.46 |
 |
+0.32 | +0.34 | +0.38 | +0.39 |
| KT | — | — | −0.27 | −0.35 |
 |
+0.17 | +0.27 | +0.24 | +0.18 |
 |
−0.24 | n.a. | — | n.a. |
| KA | — | — | −0.22 | −0.12 |
| λA | +0.17 | +0.19 | +0.18 | +0.12 |
| μS,A | — | — | −0.14 | −0.11 |
| ηA | — | — | +0.13 | — |
| μS,T | — | — | — | −0.12 |
 |
— | — | — | −0.10 |