Article

Unravelling the origins of anomalous diffusion: From molecules to migrating storks

Público Deposited
https://scholar.colorado.edu/concern/articles/6d56zz07x
Abstract
  • Anomalous diffusion or, more generally, anomalous transport, with nonlinear dependence of the mean-squared displacement on the measurement time, is ubiquitous in nature. It has been observed in processes ranging from microscopic movement of molecules to macroscopic, large-scale paths of migrating birds. Using data from multiple empirical systems, spanning 12 orders of magnitude in length and 8 orders of magnitude in time, we employ a method to detect the individual underlying origins of anomalous diffusion and transport in the data. This method decomposes anomalous transport into three primary effects: long-range correlations (“Joseph effect”), fat-tailed probability density of increments (“Noah effect”), and nonstationarity (“Moses effect”). We show that such a decomposition of real-life data allows us to infer nontrivial behavioral predictions and to resolve open questions in the fields of single-particle tracking in living cells and movement ecology.

     

Creator
Date Issued
  • 2022
Academic Affiliation
Journal Title
Journal Volume
  • 4
Última modificación
  • 2023-07-25
Resource Type
Declaración de derechos
License
DOI
ISSN
  • 2643-1564
Language

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