Tangled Nature: A model of emergent structure and temporal mode among co-evolving agents

Abstract

Understanding systems level behaviour of many interacting agents is challenging in various ways, here we'll focus on the how the interaction between components can lead to hierarchical structures with different types of dynamics, or causations, at different levels. We use the Tangled Nature model to discuss the co-evolutionary aspects connecting the microscopic level of the individual to the macroscopic systems level. At the microscopic level the individual agent may undergo evolutionary changes due to mutations of strategies. The micro-dynamics always run at a constant rate. Nevertheless, the system's level dynamics exhibit a completely different type of intermittent abrupt dynamics where major upheavals keep throwing the system between meta-stable configurations. These dramatic transitions are described by a log-Poisson time statistics. The long time effect is a collectively adapted of the ecological network. We discuss the ecological and macroevolutionary consequences of the adaptive dynamics and briefly describe work using the Tangled Nature framework to analyse problems in economics, sociology, innovation and sustainability

Invited contribution to Focus on Complexity in European Journal of Physics. 25 page, 1 figure

References in corpus (10)

• Evolution in complex systems
• Punctuated equilibria and 1/f noise in a biological coevolution model with individual-based dynamics
• Network properties, species abundance and evolution in a model of evolutionary ecology
• The species-area relationship and evolution
• Fluctuations and correlations in an individual-based model of biological coevolution
• An individual-based predator-prey model for biological coevolution: Fluctuations, stability, and community structure
• Effects of correlated interactions in a biological coevolution model with individual-based dynamics
• Cultural Evolution as a Non-Stationary Stochastic Process
• Forecasting transitions in systems with high dimensional stochastic complex dynamics: A Linear Stability Analysis of the Tangled Nature Model
• The Tangled Nature Model of evolutionary dynamics reconsidered: structural and dynamical effects of trait inheritance

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• A Punctuated Equilibrium Analysis of the Climate Evolution of Cenozoic exhibits a Hierarchy of Abrupt Transitions
• A Gaian Habitable Zone
• Tangled Worldview Model of Opinion Dynamics
• Record dynamics of evolving metastable systems: theory and applications