Table 1 Model parameters and values used in the simulations

N

Population size

100, 1000, 5000

R

Number of resources and traits (resource affinities)

9

c _{i k}

Resource affinity of an individual I for resource k

[0, 1]

μ

Per-trait mutation rate

0.01, 0.05

γ _k

Half-saturation of resource k

100

σ ₁

Cost of having high resource affinity

0, 0.1, 1, 10

σ ₂

Cost of having many non-zero resource affinities

0, 0.01, 0.1, 1

λ _k

Influx of resource k per individual

[ 10^-4, 10]

c ₀

Resource decay rate

0.1

r _k

Abundance of resource k

[ N λ _k , N λ _k /c₀]