Abstract
The Punctuated Equilibrium hypothesis (Eldredge and Gould,1972) asserts that most evolutionary change occurs during geologically rapid speciation events, with species exhibiting stasis most of the time. Punctuated Equilibrium is a natural extension of Mayr’s theories on peripatric speciation via the founder effect, (Mayr, 1963; Eldredge and Gould, 1972) which associates changes in diversity to a population bottleneck. That is, while the formation of a foundation bottleneck brings an initial loss of genetic variation, it may subsequently result in the emergence of a child species distinctly different from its parent species. In this paper we adapt Bedau’s evolutionary activity statistics (Bedau and Packard, 1991) to test these effects in an ALife simulation of speciation. We find a relative increase in evolutionary activity during speciations events, indicating that punctuation is occurring.
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References
Bedau, M.A., Packard, N.H.: Measurement of evolutionary activity, teleology, and life. In: Langton, C.G., Taylor, C., Farmer, J.D., Rasmussen, S. (eds.) Artificial Life II, pp. 431–461. Addison-Wesley, Reading (1991)
Channon, A.: Unbounded evolutionary dybnamics in a system of agents that actively process and transform their environment. Genetic Programming and Evolvable Machines 7, 253–281 (2006)
Cheetham, A., Jackson, J., Hayek, L.-A.: Quantitative genetics of bryozoan phenotypic evolution. Evolution 48, 360–375 (1994)
Dennett, D.: Darwin’s Dangerous Idea. Simon & Schuster, New York (1996)
Eldredge, N., Gould, S.J.: Punctuated Equilibria: An Alternative to Phyletic Gradualism. In: Schopf, T.J.M. (ed.) Models in Paleobiology, pp. 82–115. Freeman, Cooper and Company, San Francisco (1972)
Gould, S.: Punctuated equilibrium in fact and theory. In: Somit, A., Peterson, S. (eds.) The dynamics of evolution, pp. 54–84. Cornell University, Ithica (1989)
Gould, S.: Punctuated equilibrium comes of age. Nature 366, 223–227 (1993)
Gould, S.: Darwinian fundamentalism. New York Review of Books, 34–37 (June 12, 1997a)
Gould, S.: Evolution: The pleasures of pluralism. New York Review of Books, 47–52 (June 26, 1997b)
Hey, J.: On the failure of modern species concepts. Trends in Ecology and Evolution 21, 447–450 (2006)
Mayr, E.: Animal Species and Evolution. Harvard University Press, Cambridge (1963)
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Woodberry, O.G., Korb, K.B., Nicholson, A.E. (2009). Testing Punctuated Equilibrium Theory Using Evolutionary Activity Statistics. In: Korb, K., Randall, M., Hendtlass, T. (eds) Artificial Life: Borrowing from Biology. ACAL 2009. Lecture Notes in Computer Science(), vol 5865. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10427-5_9
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DOI: https://doi.org/10.1007/978-3-642-10427-5_9
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