Table 1.
Parameters of the model of pestivirus spread in a Pyrenean chamois population
| θ | Description (dimension) | Value | Ref. |
|---|---|---|---|
| Demographic parameters | |||
| η maxSa | Fertility rate of sub-adult females, maximum (annual) | 0.65 | [21] |
| η A | Fertility rate of adult females (annual) | 0.90 | [21] |
| η maxSaP | Fertility rate of sub-adult PI females, maximum (annual) | 0.65 | [21] |
| η AP | Fertility rate of adult PI females (annual) | 0.90 | [21] |
| μ minJuv | Probability of juvenile mortality, minimum (annual) | 0.342 | [21,31] |
| μ maxJuv | Probability of juvenile mortality, maximum (annual) | 0.85 | a |
| μ femaleSa | Probability of mortality of sub-adult females (annual) | 0.1 | c |
| μ maleSa | Probability of mortality of sub-adult males (annual) | 0.171 | c |
| μ femaleA | Probability of mortality of adult females (annual) | 0.105 | c |
| μ maleA | Probability of mortality of adult males (annual) | 0.143 | c |
| μ P | Probability of mortality of PI animals (annual) | 0.75 | [34] |
| μ T | Probability of mortality related to a transient infection (over the duration of viremia) | 0.196 | c |
| δ | Sex ratio | 0.5 | b |
| K | Carrying capacity | 3000 | a |
| d | Strength of density dependence | 0.8 × 10−3 | a |
| Epidemiological parameters | |||
| 1/α | Duration of immunity by maternal antibodies (days) | 60 | b |
| β T | Horizontal transmission coefficient by a transiently infected animal (per day) | 0.03 | [34] |
| β P | Horizontal transmission coefficient by a PI animal (per day) | 0.5 | [34] |
| 1/γ | Duration of viremia (days) | 51 | [29] |
| 1/ω | Duration of immunity (years) | 8 | [28] |
| ρ | Probability of abortion | 0.5 | [26] |
| ν | Possibility of infection during the gestation period (boolean) | 0/1 | |
| τ | Indicator of rut (boolean) | 0/1 | |
aCalibrated using field data.
bExperts knowledge.
cUnpublished data from the study site.