Self-organization of front patterns in large wildebeest herds

Shay Gueron, Simon Asher Levin

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

Aerial photographs of migrating wildebeest herds reveal striking distributional patterns, including wavy fronts. These patterns vary over scales that are much larger than the individual’s perceptual range, and thus cannot be explained simply as random fluctuations on uniformity. Furthermore, since the individual is only aware of its immediate surroundings, broad-range patterns must be explained in terms of local decisions. This paper suggests a model for the dynamics of large herds and a mechanism for their self-organizing pattern formation. We overcome the problem of modeling a two-dimensional distribution of a large population by considering only the leading layer. The conditions under which uniform fronts are stable (or unstable) are analyzed. In the latter case, small perturbations on uniformity evolve to large-scale patterns, as we demonstrate by computer simulations. We suggest this as a possible mechanism for spontaneous generation of long-range patterns.

Original languageEnglish (US)
Pages (from-to)541-552
Number of pages12
JournalJournal of Theoretical Biology
Volume165
Issue number4
DOIs
StatePublished - Dec 21 1993

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Modeling and Simulation
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)
  • Applied Mathematics

Fingerprint Dive into the research topics of 'Self-organization of front patterns in large wildebeest herds'. Together they form a unique fingerprint.

Cite this