According to this concept, the punctuation or sudden changes in morphology disrupts the equilibrium that accurs at the periphery of the area where this population lives. These population segments are reffered to as peripheral isolates. Dr. Gould's work is very important because he was the first person in the twentieth century to do significant research Darwin's theory of natural selection. He essentially cleaned up the edges of Darwin's theory. Ever Since Darwin , he bases his theory on Charles Darwin's Theory of Natural Selection.
Organisms vary, and the variations are inherited by their offspring.
Organisms produce more offspring than can possibly survive. On average, offspring that vary most strongly in directions favored by the environment will survive and propagate. Variation will therefore accumulate in populations by natural selection. Gould adds two more dimensions to Darwin's Theory of Natural Selection. First, variation must be random, or at least not preferentially inclined toward adaptation.