Superdiffusivity due to resource depletion in random searches

  • Author(s) / Creator(s)
  • Animal search patterns are governed by the various movement strategies undertaken when animals
    encounter stimuli. The stimuli caused by resource growth and depletion can modify search patterns due
    to the need to
    finding resources. In this paper, we investigate the influence of resource depletion on the
    dynamics of dispersal of a population which is related to diffusion or anomalous diffusion. Our approach
    is to develop a population level model using partial differential equations that takes into account rules for
    movement based on the resource levels. Through numerical analysis, we show that the population
    dispersal patterns depend on the resource depletion, with superdiffusive spread in cases where the
    depletion rate (as given by high consumption and low replenishment) is high. This has the potential to
    increase searching efficiency.

  • Date created
  • Subjects / Keywords
  • Type of Item
    Article (Draft / Submitted)
  • DOI
  • License
    Attribution-NonCommercial 4.0 International