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Theory and Modern Applications

Table 1 List of biological significance and dimensions

From: The impact of resource limitation on the pest-natural enemy ecosystem with anti-predator behavior and fear effect

Parameters

Biological significance

Dimension

x

Pest population density

biomass

y

Predator population density

biomass

r

Maximum intrinsic growth rate of pests

time−1

a

Cost of fear of predators

biomass−1

K

Carrying capacity of the pest population

biomass

v

Investment of pests in anti-predator behavior

biomass ⋅ time−1

ε

Efficiency of the anti-predator behavior

biomass−1⋅time

q

Predation rate against pests

biomass−1⋅time−1

b

Rate of predator satisfaction to prey

biomass−1

c

Conversion rate of pests to predators

dimensionless

m

Mortality rate of predators

time−1

p

Maximum instantaneous killing rate of a pesticide against pests

dimensionless

h

Half-saturation coefficient

biomass

Ï„

Maximum number of natural enemies released at one-time

biomass

δ

Tuning parameters for predator density

biomass−1

  1. Note that dimensionless means that the parameter cannot be represented by biomass and time in model (1). We refer to [35] for more information on the dimensions of parameters.