Mehrotra, Ravi ; Soni, Vikram ; Jain, Sanjay (2009) Diversity sustains an evolving network Journal of the Royal Society Interface, 6 (38). pp. 793-799. ISSN 1742-5689
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Official URL: http://rsif.royalsocietypublishing.org/content/6/3...
Related URL: http://dx.doi.org/10.1098/rsif.2008.0412
Abstract
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 |
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Source: | Copyright of this article belongs to Royal Society Publishing. |
Keywords: | Complex Networks; Evolution; Catalytic Dynamics; Crashes; Robustness; Signatures of Fragility |
ID Code: | 12808 |
Deposited On: | 11 Nov 2010 08:53 |
Last Modified: | 16 May 2016 22:04 |
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