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Table 4 Description of the different parameters used in the model

From: Rift Valley fever vector diversity and impact of meteorological and environmental factors on Culex pipiens dynamics in the Okavango Delta, Botswana

Parameter Definition Value Reference
β 1 Number of eggs laid by ovipositing nulliparous females (per female) 141 [37, 51, 67, 75]
β2 Number of eggs laid by ovipositing parous females (per female) 80 [37, 51, 67, 75]
k Lmin
k Lmax
Standard environment carrying capacity for larvae (larvae ha-1) 8 × 106
1 × 108
Expert opinion
k P min
k P max
Standard environment carrying capacity for pupae (pupae ha-1) 8 × 106
1 × 108
Expert opinion
σ Sex-ratio at the emergence 0.5 [16, 36]
μ E Egg mortality rate (day-1) 0.0262 [37, 51, 67, 75]
μ L Minimum larva mortality rate (day-1) 0.0304 [37, 51, 67, 75]
μ P Minimum pupa mortality rate (day-1) 0.0735 [37, 51, 67, 75, 76]
μ em Mortality rate during adult emergence (day-1) 0.21845 [67, 77]
μ A Minimum adult mortality rate (day-1) 0.1 [77]
μ r min
μ r max
Adult mortality rate related to seeking behaviour (day-1) 0.18
0.59
[78]
γ Ah Transition rate from host-seeking to engorged adults (day-1) 0.885 [37, 51, 67, 75]
γ Ao Transition rate from engorged adult to oviposition site-seeking adults (day-1) 0.25 [67]
γ Aem Development rate of emerging adults (day-1) 0.25 [37, 51, 67, 75]
T E Minimal temperature needed for egg development (°C) 10 [16]
TDD E Total number of degree-day necessary for egg development (°C) 19.18 [16]
T Ag Minimal temperature needed for development of engorged females (°C) 10 [37, 51, 67, 75]
TDD Ag Total number of degree-days necessary for engorged females development (°C) 64.4 [37, 51, 67, 75]
  1. “Expert opinion”: estimation from others species or areas [37]