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Table 1 List of parameters used in models with definitions

From: Should sex-ratio distorting parasites abandon horizontal transmission?

Parameter Definition
a Birth rate
g Uninfected sex ratio (proportion of female offspring)
b 0 Basal death rate
s Density dependent mortality (constant coefficient of H)
t Time required for one host generation
ε Efficiency of vertical transmission
θ Efficiency of feminisation
α Virulence (viability cost)
γ Rate at which host clears parasite
λ Component of virulence due to vertical transmission
(constant coefficient of ε)
μ Efficiency of superinfection
β Rate of horizontal transmission (proportionality constant)
σ Component of virulence due to horizontal transmission
(constant coefficient of β)
H Total number of hosts in population
X m Number of uninfected male hosts
X f Number of uninfected female hosts
Y m Number of male hosts infected with parasite 1
Y f Number of female hosts infected with parasite 1
Z m Number of male hosts infected parasite 2
Z f Number of female hosts infected with parasite 2
K Carrying capacity
H* Equilibrium population size
Y* Equilibrium number of hosts infected with parasite 1
Z* Equilibrium number of hosts infected with parasite 2
y Prevalence of parasite 1
y* Equilibrium prevalence of parasite 1
z Prevalence of parasite 2
z* Equilibrium prevalence of parasite 2
R 0 Basic reproductive rate of uninfected cytotype in uninfected population
R 1 Basic reproductive rate of parasite 1
R 2 Basic reproductive rate of parasite 2