Spatial patterns in ant colonies

TLDR

Large‑scale spatial patterns in biology, first theorized by Turing (1952) as a chemical basis of morphogenesis, are crucial for understanding biocomplexity, yet conclusive evidence for local activation–long‑range inhibition mechanisms in real systems remains elusive. The study presents a well‑defined experimental and theoretical analysis of pattern formation dynamics in ant colony clustering behavior. The authors conducted a well‑defined experimental and theoretical analysis of the pattern formation dynamics in ant colony clustering behavior. Experiments and a simple mathematical model demonstrate that ant colonies employ local activation–long‑range inhibition mechanisms, with measured microscopic variables providing the first evidence of such self‑organized behavior in complex biological systems and supporting early conjectures about insect society organization.

Abstract

The origins of large-scale spatial patterns in biology have been an important source of theoretical speculation since the pioneering work by Turing (1952) on the chemical basis of morphogenesis. Knowing how these patterns emerge and their functional role is important to our understanding of the evolution of biocomplexity and the role played by self organization. However, so far, conclusive evidence for local activation–long-range inhibition mechanisms in real biological systems has been elusive. Here a well-defined experimental and theoretical analysis of the pattern formation dynamics exhibited by clustering behavior in ant colonies is presented. These experiments and a simple mathematical model show that these colonies do indeed use this type of mechanism. All microscopic variables have been measured and provide the first evidence, to our knowledge, for this type of self-organized behavior in complex biological systems, supporting early conjectures about its role in the organization of insect societies.