Mehrotra, Ravi and Soni, Vikram and Jain, Sanjay (2008) Diversity sustains an evolving network. Journal of the royal society interface, 6 (38). pp. 793-799. ISSN 1742-5662

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We study an evolutionary model of a complex system that evolves under catalytic dynamics and Darwinian selection and exhibits spontaneous growth, stasis and then a collapse of its structure. We find that the typical lifetime of the system increases sharply with the diversity of its components or species. We also find that the prime reason for crashes is a naturally occurring internal fragility of the system. This fragility is captured in the network organizational character and is related to a reduced multiplicity of pathways or feedback loops between its components. These results apply to several generalizations of the model as well. This work suggests new parameters for understanding the robustness of evolving molecular networks, ecosystems, societies and markets.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s The Royal Society
Subjects: Physics
Depositing User: Ms Neetu Chandra
Date Deposited: 22 Aug 2012 12:26
Last Modified: 28 Aug 2012 09:06

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