Dynamics and evolution of biological and social networks

Boltzman , Darwin and the evolution of Biological networks

Author: Lloyd Demetrius, Max Planck Institute for Molecular Genetics.

Names and affiliation of other authors:

Oral presentation

Boltzmann,s statistical thermodynamics rests on the the empirical observation that macroscopic physical and chemical systems have the tendency to change so that the total energy becomes dispersed . Boltzmann showed that this tendency can be explained in terms of a statistical measure , thermodynamic entropy , a measure of the diversity of energy distribution in a network of interacting molecules . Darwin,s theory of evolution by natural selection is a mechanistic explanation of the empirical fact that Biological complexity as measured by various morphological indices increases over geological time . Darwin,s argument is based on the concept Fitness , a mesure of the diversity of Energy flow in a network of interacting organisms . I will discuss the connection between these two theories and show how the ideas they invoke can be extended to analyse the evolution of various classes of biological networks at the molecular , cellular and population levels

Dynamics and evolution of biological and social networks. February 18-20th, 2008. Mallorca, Spain.