From: Predicting outbreaks: a spatial risk assessment of West Nile virus in British Columbia
C. tarsalis | C. pipiens | ||||
---|---|---|---|---|---|
Stage and parameter | Parameter value | Source | Parameter value | Source | |
Start of calculation | 3 day mean of T≥ 7.0 | Estimated from [45] | 3 day mean of T ≥ 7.0 | estimated from [45] | |
degree-days | 9.0°C/20dd | Table 2 | 7.0°C/30dd | Table 2 | |
Egg | Mortality | 0.2%/day(5 ≤ T ≤ 30), (0.02(5-T) + 0.2)% (T<5) (0.02(T-30) + 0.2)% (30<T)/day | [33] (modified) | Same as tarsalis | [33] |
degree-days | 7.0°C/170dd | Table 2 | 9.0°C/150dd | Table 2 | |
Larva | Mortality | (0.5(T-20)^{2} + 25)%/2stages of Larva and Pupa | Fig. 4B of [35] (modified) | 0.4 (J ≤ 180), 0.6(J>180) for 2stages of Larva and Pupa | [36] |
degree-days | 11°C/30dd | Table 2 | 8.0°C/50dd | Table 2 | |
Pupa | mortality | (see above) | Fig. 4B of [35] (modified) | (see above) | [36] |
mortality | (0.24(T-25)^{2} + 5)%/day | [33] (modified) | Same as tarsalis | [33] (modified) | |
Adult | drying | 3 days | [23] | Same as tarsalis | ([23]) |
host seeking | 1 day | [23] | Same as tarsalis | ([23]) | |
ovary development | 5.0°C/77dd | Table2([63]) | 9.5°C/65dd | Table2 | |
Laid eggs/gonotrophic cycle | 230 | [64] (via [33]) | 105 | [47] | |
Average gonotrophic cycle | 1.10 | [46] | 5.00 | estimated from [47] | |
Weight by distance (D(m)) from wetland/lake | 0.002924-0.000792(D-52)/2138 (if D ≤ 2190), 0.002132-0.001636(D-2190)/484 (if 2190<D ≤ 2674), max(0.000496-0.000230(D-2674)/2865, 0) (if D>2674) | Fig. 10a | 0.3054 (if D ≤ 2190), 0.3054-0.1003(D-2190)/1860 (if 2190<D ≤ 4050), max(0.2051-0.1341(D-4050)/1987,0) (if D>4050) | Fig. 10b | |
Mortality by predators and lack of food (total of immature stages) | 89% (if J ≤ 182), 86%(if J ≤ 244), 73%(if J>244) | [42] | 98% | Adjusted by fitting | |
Ratio of oviposition (considering diapause) | 1 (if J<150), 0.3 (if 150 ≤ J<180), 0.3-0.01(J-180) (if 180<J ≤ 210), 0 (if 210<J) | [43] | (-412 + 27.2*daylength(h)+2.99*T-8)% | [44] |