Punctuated equilibrium in thoroughbred evolution and its model based on asynchronous clocks

Yasuhiro Takachi, Yukio Gunji

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1 Citation (Scopus)


Evolutionary patterns of thoroughbreds are estimated in terms of distribution of life-spans, avalanche size of extinction and lineage size. All of them show power-law distribution with exponent of -2.0, and show the characteristics of a particular evolutionary pattern called punctuated equilibrium. In addition, we propose a model based on modulation among asynchronous clocks to explain this kind of power-law distribution.

Original languageEnglish
Pages (from-to)555-562
Number of pages8
JournalChaos, Solitons and Fractals
Issue number3
Publication statusPublished - 2004 Feb
Externally publishedYes


ASJC Scopus subject areas

  • Statistical and Nonlinear Physics

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