Self-organized patterns and traffic flow in colonies of organisms: from bacteria and social insects to vertebrates

Details Self-organized patterns and traffic flow in colonies of organisms: from bacteria and social insects to vertebrates Self-organized patterns and traffic flow in colonies of organisms: from bacteria and social insects to vertebrates

2004-01-06

arxiv.org/abs/q-bio/0401006v3

Biology

Quantitative Biology

Populations and Evolution

LATEX, 37 pages, 8 EPS figures, Titles of cited papers added

Scientific paper

Flocks of birds and schools of fish are familiar examples of spatial patterns formed by living organisms. In contrast to the patterns on the skins of, say, zebra and giraffe, the patterns of our interest are {\it transient} although different patterns change over different time scales. The aesthetic beauty of these patterns have attracted the attentions of poets and philosophers for centuries. Scientists from various disciplines, however, are in search of common underlying principles that give rise to the transient patterns in colonies of organisms. Such patterns are observed not only in colonies of organisms as simple as single-cell bacteria, as interesting as social insects like ants and termites as well as in colonies of vertebrates as complex as birds and fish but also in human societies. In recent years, particularly over the last one decade, physicists have utilized the conceptual framework as well as the methodological toolbox of statistical mechanics to unravel the mystery of these patterns. In this article we present an overview emphasizing the common trends that rely on theoretical modelling of these systems using the so-called agent-based Lagrangian approach.

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