Nonlinear Sciences – Adaptation and Self-Organizing Systems
Scientific paper
1997-10-06
Nonlinear Sciences
Adaptation and Self-Organizing Systems
30 pages 9 figures LaTeX
Scientific paper
Macroevolution is considered as a problem of stochastic dynamics in a system with many competing agents. Evolutionary events (speciations and extinctions) are triggered by fitness records found by random exploration of the agents' fitness landscapes. As a consequence, the average fitness in the system increases logarithmically with time, while the rate of extinction steadily decreases. This dynamics is studied by numerical simulations and, in a simpler mean field version, analytically. We also study the effect of externally added `mass' extinctions. The predictions for various quantities of paleontological interest (life-time distributions, distribution of event sizes and behavior of the rate of extinction) are robust and in good agreement with available data. Brief version of parts of this work have been published as Letters. (PRL 75, 2055, (1995) and PRL, 79, 1413, (1997))
Alstroem Preben
Michael Brandt Paolo Sibani
No associations
LandOfFree
Evolution and extinction dynamics in rugged fitness landscapes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evolution and extinction dynamics in rugged fitness landscapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution and extinction dynamics in rugged fitness landscapes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-68617