Table 3 Parameters used in model. Default values used to generate the figures, and assumptions made in sensitivity analyses.
From: The emergence of leaders and followers in foraging pairs when the qualities of individuals differ
Variable | Description | Default values for figures 1 and 3 | Default values for sensitivity analyses |
|---|---|---|---|
c max | Largest cost possible | 4.0 state units | 3.0 state units |
g max | Maximum gain during a period | 8.0 state units | 6.0 state units |
k | Error in decision making | 0.0000001 | 0.0000001 |
λ | Population adjustment constant | 0.1 | 0.1 |
m A | Predation risk when foraging alone | 0.00050 | -- |
m R | Predation risk when resting | 0.00010 | -- |
m T | Predation risk when foraging together | 0.00025 | -- |
μ F | Mean cost of foraging | 2.5 state units | -- |
μ R | Mean cost of resting | 1.0 state units | -- |
ν | Mean gain from foraging | 5.0 state units | -- |
ψ | s.d. of energetic gain when foraging | 2.0 state units | -- |
S | Maximum state possible | 40 state units | 40 state units |
σ F | s.d. of energetic cost of foraging | 0.5 state units | 0.5 state units |
σ R | s.d. of energetic cost of resting | 0.5 state units | 0.5 state units |