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Keywords = punctuated equilibria

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22 pages, 719 KB  
Article
Entropy and Equilibria in Competitive Systems
by A. Y. Klimenko
Entropy 2014, 16(1), 1-22; https://doi.org/10.3390/e16010001 - 24 Dec 2013
Cited by 15 | Viewed by 6923
Abstract
This paper investigates the applicability of thermodynamic concepts and principles to competitive systems. We show that Tsallis entropies are suitable for the characterisation of systems with transitive competition when mutations deviate from Gibbs mutations. Different types of equilibria in competitive systems are considered [...] Read more.
This paper investigates the applicability of thermodynamic concepts and principles to competitive systems. We show that Tsallis entropies are suitable for the characterisation of systems with transitive competition when mutations deviate from Gibbs mutations. Different types of equilibria in competitive systems are considered and analysed. As competition rules become more and more intransitive, thermodynamic analogies are eroded, and the behaviour of the system can become complex. This work analyses the phenomenon of punctuated evolution in the context of the competitive risk/benefit dilemma. Full article
(This article belongs to the Special Issue Complex Systems)
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10 pages, 176 KB  
Opinion
Dynamics of Change in Human-Driven and Natural Systems: Fast Forward, Slow Motion, Same Movie? A Case Study from Plant Protection
by Didier Andrivon
Sustainability 2012, 4(3), 384-393; https://doi.org/10.3390/su4030384 - 14 Mar 2012
Cited by 2 | Viewed by 10756
Abstract
Evolutionary biology and evolutionary ecology deal with change in species and ecosystems over time, and propose mechanisms to explain and predict these. In particular, they look for generic elements that will drive any organism or phylum to adaptive changes or to extinction. This [...] Read more.
Evolutionary biology and evolutionary ecology deal with change in species and ecosystems over time, and propose mechanisms to explain and predict these. In particular, they look for generic elements that will drive any organism or phylum to adaptive changes or to extinction. This paper, using examples from the field of plant protection against pests and diseases, shows that the patterns of change observed in natural and in human-driven systems are comparable, and proposes that their similarities result from the same mechanisms operating at different paces. Human-driven systems can thus be seen simply as ‘fast-forward’ versions of natural systems, making them tractable tools to test and predict elements from evolutionary theory. Conversely, the convergence between natural and human-driven systems opens opportunities for a more widespread use of evolutionary theory when analyzing and optimizing any human-driven system, or predicting its adaptability to changing conditions. Full article
(This article belongs to the Special Issue Adaptation or Extinction)
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