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What exactly is Fisher's model (adaptation/evolution)

  1. Dec 2, 2011 #1
    What exactly is "Fisher's model" (adaptation/evolution)

    What is Fisher’s geometric model? Why are small changes more likely to contribute to adaptation
    that larger ones? Theres a pic of a sphere in my textbook that explains this but i still dont get it.. Is the idea simply that small changes will/can contribute more to adaptation becuase large changes can decrease fitness faster, --is that the basic idea? please explain..thanks!
  2. jcsd
  3. Dec 2, 2011 #2


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    Re: What exactly is "Fisher's model" (adaptation/evolution)

    Genetics, Vol. 151, 921-927, March 1999, Copyright © 1999
    Evolution by Small Steps and Rugged Landscapes in the RNA Virus φ6
    Christina L. Burcha and Lin Chao
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