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Mayr was an outspoken defender of the scientific method and was known to critique sharply science on the edge. As a notable example, in 1995, he criticized the Search for Extra-Terrestrial Intelligence (SETI), as conducted by fellow Harvard professor Paul Horowitz , as being a waste of university and student resources for its inability to ...
Ernst Mayer (24 June 1796 [1] – 21 January 1844) was a German sculptor in the classical style. He was a pupil of Antonio Isopi and worked for Leo von Klenze , mainly in Munich where in 1830 he became Professor of Sculpture at the Polytechnic, now the Technical University .
Founder effect: The original population (left) could give rise to different founder populations (right). In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population.
This concept Ernst Mayr proposes here is now commonly referred to as the biological species concept. The biological species concept defines a species in terms of biological factors such as reproduction , taking into account ecology, geography, and life history; it remains an important and useful idea in biology, particularly for animal ...
Painting of Hugo de Vries, making a painting of an evening primrose, the plant which had apparently produced new forms by large mutations in his experiments, by Thérèse Schwartze, 1918. Mutationism was the idea that new forms and species arose in a single step as a result of large mutations. It was seen as a much faster alternative to the ...
The biologist Ernst Mayr championed the concept of ring species, stating that it unequivocally demonstrated the process of speciation. [10] A ring species is an alternative model to allopatric speciation, "illustrating how new species can arise through 'circular overlap', without interruption of gene flow through intervening populations…"
The synthesis was defined differently by its founders, with Ernst Mayr in 1959, G. Ledyard Stebbins in 1966, and Theodosius Dobzhansky in 1974 offering differing basic postulates, though they all include natural selection, working on heritable variation supplied by mutation.
In the 1950s, Ernst Mayr entered the field of anthropology and, surveying a "bewildering diversity of names", decided to define only three species of Homo: "H. transvaalensis" (the australopithecines), H. erectus (including the Mauer mandible, and various putative African and Asian taxa) and Homo sapiens (including anything younger than H ...