Ernst Mayr Quotes & Quotations
   

 
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Ernst Mayr
 
Date of birth: 05 July 1904
Date of death: 03 February 2005
Country Of Origin: Germany
Profession:

Biologist

Biography:
    Ernst Walter Mayr (July 5, 1904, Kempten im Allgäu, Germany – February 3, 2005, Bedford, Massachusetts United States), was one of the 20th century's leading evolutionary biologists. He was also a renowned taxonomist, tropical explorer, ornithologist, historian of science, and naturalist. His work contributed to the conceptual revolution that led to the modern evolutionary synthesis of Gregor Mendel genetics, systematics, and Charles Darwin evolution, and t .... (More...)
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Ernst Mayr quotes
" A modest theory of punctuationism is so strongly supported by facts and fits, on the whole, so well into the conceptual framework of Darwinism, that one is rather surprised at the hostility with which it was attacked. "

Ernst Mayr
" Acceptance of phyletic gradualism does not require the acceptance of a constant rate of evolutionary change. The rate may accelerate or slow down, but change leads inexorably to the steady transformation of a lineage. "

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
" All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population. "

Ernst Mayr
" An evolutionary lineage may continue to vary genetically without undergoing any major reconstruction. Alternatively, a stable lineage may continue to send out founder populations, some of which, through peripatric speciation, could become more or less distinct daughter species. "

Ernst Mayr
" As a consequence, geneticists described evolution simply as a change in gene frequencies in populations, totally ignoring the fact that evolution consists of the two simultaneous but quite separate phenomena of adaptation and diversification. "

Ernst Mayr
" Eldredge and Gould never claimed to have discovered this difference in rates, and the part of the ensuing polemic stressing these differences is therefore irrelevant for the evaluation of the punctuation theory. "

Ernst Mayr
" Evolution is no longer necessarily progressive; it no longer strives toward perfection or any other goal. It is opportunistic, hence unpredictable. "

Ernst Mayr
" Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection. "

Ernst Mayr
" I agree with Gould that the frequency of stasis in fossil species revealed by the recent analysis was unexpected by most evolutionary biologists. "

Ernst Mayr
" I did not claim that every founder population speciates. In the vast majority, only minor genetic reorganizations occur, and the majority of such founder populations soon become extinct or merge with the parental species. "

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
" I did not claim that speciation occurs only in founder populations. "

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
" I have been unable to discover in Darwin's writings any connection between allopatric speciation and change of evolutionary rate. "

Ernst Mayr
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