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• W1987105890 endingPage "e16168" @default.
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• W1987105890 abstract "Background Theoretical studies predict that Lévy walks maximizes the chance of encountering randomly distributed targets with a low density, but Brownian walks is favorable inside a patch of targets with high density. Recently, experimental data reports that some animals indeed show a Lévy and Brownian walk movement patterns when forage for foods in areas with low and high density. This paper presents a simple, Gaussian-noise utilizing computational model that can realize such behavior. Methodology/Principal Findings We extend Lévy walks model of one of the simplest creature, Escherichia coli, based on biological fluctuation framework. We build a simulation of a simple, generic animal to observe whether Lévy or Brownian walks will be performed properly depends on the target density, and investigate the emergent behavior in a commonly faced patchy environment where the density alternates. Conclusions/Significance Based on the model, animal behavior of choosing Lévy or Brownian walk movement patterns based on the target density is able to be generated, without changing the essence of the stochastic property in Escherichia coli physiological mechanism as explained by related researches. The emergent behavior and its benefits in a patchy environment are also discussed. The model provides a framework for further investigation on the role of internal noise in realizing adaptive and efficient foraging behavior." @default.
• W1987105890 created "2016-06-24" @default.
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• W1987105890 date "2011-02-03" @default.
• W1987105890 modified "2023-09-26" @default.
• W1987105890 title "From Lévy to Brownian: A Computational Model Based on Biological Fluctuation" @default.
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• W1987105890 doi "https://doi.org/10.1371/journal.pone.0016168" @default.
• W1987105890 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3033405" @default.
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