Appendix 1—table 1. Trait thermal responses used in transmission (R0) models.
Viruses: West Nile (WNV), Eastern and Western Equine Encephalitis (EEEV and WEEV), St. Louis Encephalitis (SLEV), Sindbis (SINV), and Rift Valley Fever (RVFV). Ae. vex. = Ae. vexans, Cs. mel. = Culiseta melanura; all other vectors (Cx. = Culex) listed under model names. Traits are: fecundity (as eggs/female/gonotrophic cycle [EFGC] or eggs per raft*proportion ovipositing [ER*pO]), egg viability (EV), larval-to-adult survival (pLA), mosquito development rate (MDR), lifespan (lf), biting rate (a), vector competence (bc, b [transmission efficiency], c [infection efficiency], or b*c, as available), and parasite development rate (PDR). The WNV–Cx. quinquefasciatus model uses Equation A2 (ER*pO); the EEEV–Ae. triseriatus model uses EFGC from Cx. pipiens and pO from Cs. melanura; all other models use Equation A1 (EFGC). When data were missing for a vector–virus pair, we substituted the most conservative (i.e. least restrictive of transmission) trait thermal response from a vector that occurs within the geographic range of disease transmission. Several models had multiple potentially valid choices for traits; we explain and show compare these alternative models with the main text versions in Appendix 1—figure 22. Checkmarks indicate a thermal response from the vector in the model name. The parasite development rate data for SINV was insensitive to temperature (Figure 4), so the trait thermal response was omitted from the SINV models (‘NA’).
| Model: virus–vector |
EFGC or ER*pO |
EV | pLA | MDR | lf | a | bc, c*b c, or b | PDR |
|---|---|---|---|---|---|---|---|---|
| WNV–Cx. pipiens | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ (bc) | ✓ |
| WNV–Cx. quinquefasciatus | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | Cx. uni. (bc) | ✓ |
| WNV–Cx. tarsalis | Cx. pip. | Cx. pip | ✓ | ✓ | ✓ | ✓ | ✓ (b) | ✓ |
| WNV–Cx. univittatus | Cx. pip. | Cx. pip. | Cx. pip. | Cx. pip. | Cx. pip. | Cx. pip. | ✓ (bc) | ✓ |
| WEEV–Cx. tarsalis | Cx. pip. | Cx. pip. | ✓ | ✓ | ✓ | ✓ | ✓ (c*b) | ✓ |
| SLEV–Cx. tarsalis | Cx. pip. | Cx. pip. | ✓ | ✓ | ✓ | ✓ | ✓ (c*b) | ✓ |
| EEEV–Ae. triseriatus | Cx. pip., Cs. mel. | Cx. pip. | ✓ | ✓ | Cx. pip. | Cs. mel. | ✓ (bc) | ✓ |
| SINV–Cx. pipiens | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ (c) | NA |
| SINV–Ae. taeniorhynchus | Cx. pip. | Ae. vex. | Ae. vex. | Ae. vex. | ✓ | Cx. pip. | ✓ (c) | NA |
| RVFV–Ae. taeniorhynchus | Cx. pip. | Cx. the. | Ae. vex. | Ae. vex. | ✓ | Cx. pip. | ✓ (bc) | ✓ |