Results 1 to 2 of 2

Thread: Natural Selection Stastiiscally

  1. #1 Natural Selection Stastiiscally 
    parsimonious person protoart's Avatar
    Join Date
    Feb 2011
    San Diego
    Starlarvae wrote:
    "The theory of natural selection assumes and asserts that reproductive success is a function of heritable phenotypic traits. According to the theory, variability among the heritable phenotypic traits in a local population causes the members of the population to exhibit variable reproductive success. Heritable phenotypic traits affect reproductive success by interacting with the environments in which their bearers live. A longer neck reaches higher fruits; a sharper eye detects more hidden prey, and so on. This is how traits lead to reproductive success, according to the theory."

    Well, not exactly.
    A basic misunderstanding.

    Since you used neck length, I'll use it.
    Parent A has a statistical neck length x, parent B has a statically y. The offspring will be x or y or in between but can be beyond x or y "randomly" and is heritable. Got it?
    If the length of the neck puts the individual offspring at a competitive disadvantage, then it will be eliminated from the gene pool. This is called "natural selection". Thus, the next generation will have a neck length statistically better than before.

    Reply With Quote  


  3. #2  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    The last sentence may be more appropriately phrased as : "Thus, the next generation will have a neck length that is statistically more likely to be fitter for the current environment." It is those important caveats that starlarvae does not understand.

    Reply With Quote  

Similar Threads

  1. reverse natural selection
    By zendra in forum Biology
    Replies: 42
    Last Post: November 13th, 2010, 06:07 PM
  2. Has natural selection been aborted?
    By coberst in forum Philosophy
    Replies: 20
    Last Post: July 2nd, 2009, 09:46 AM
  3. natural selection?
    By jam_rankin in forum Biology
    Replies: 4
    Last Post: May 26th, 2008, 03:43 AM
    By leohopkins in forum Pseudoscience
    Replies: 5
    Last Post: January 27th, 2007, 03:37 AM
  5. Natural selection
    By BloodyValentine in forum Biology
    Replies: 1
    Last Post: May 31st, 2006, 05:19 PM
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts