I have been unable to discover in Darwin's writings any connection between allopatric speciation and change of evolutionary rate.
More Quotes from Ernst Mayr:
In those early years in New York when I was a stranger in a big city, it was the companionship and later friendship which I was offered in the Linnean Society that was the most important thing in my life.Ernst Mayr
I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally classified even as a separate genus - occurred at a peripheral location, indeed usually at the most isolated peripheral location.
Ernst Mayr
Most of them are doomed to rapid extinction, but a few may make evolutionary inventions, such as physiological, ecological, or behavioral innovations that give these species improved competitive potential.
Ernst Mayr
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another.
Ernst Mayr
I did not claim that every genetic change in a founder population is a genetic revolution. Evidently it requires a special constellation for the occurrence of a more drastic genetic reorganization.
Ernst Mayr
Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection.
Ernst Mayr
Readers Who Like This Quotation Also Like:
Based on Keywords: speciationI'm a performer. I've tried everything there is.
Gene Pitney
A king should die on his feet.
Louis XVIII
I got well by talking. Death could not get a word in edgewise, grew discouraged, and traveled on.
Louise Erdrich