The evolutionary maintenance of Lévy flight foraging
Fig 6
Fitness variance and the effect of a searching cost.
The average energy over a lifespan ϵAOL, of populations of 5 ⋅ 104 with foraging exponents 1 ≤ u ≤ 6 and lifespans λ = 1M & λ = 10M traversing random uniform (RU) and Lévy dust (LD) dimension u = 1.0 environments. The fitness trends were captured with a sliding window of the first moment (WFM, red) and positive-only first moment (PWFM, blue), with two standard deviations surrounding the trend. The exponent which maximizes fitness, uMAX, is extracted from the sliding windows and marked with a dashed vertical line. Note that the first moments and standard deviations are superimposed in the zero-cost (χ = 0) plots.