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Ernst Walter Mayr (/ ˈ m aɪər / MYRE, German: [ɛʁnst ˈmaɪɐ]; 5 July 1904 – 3 February 2005) [1] [2] was a German-American evolutionary biologist. He was also a renowned taxonomist , tropical explorer, ornithologist , philosopher of biology , and historian of science . [ 3 ]
Systematics and the Origin of Species from the Viewpoint of a Zoologist was created after Ernst Mayr's Jesup lectures in New York City. [8] Mayr's Jesup lectures were held alongside the botanist Edgar Anderson, who discussed evolutionary theory from the perspective of those with a background in botany. [8]
Ernst Wilhelm Mayr (born 18 May 1950) is a German computer scientist and mathematician. He received the Gottfried Wilhelm Leibniz Prize in 1997 awarded for his contributions to theoretical computer science. [1] Mayr's research in computer science covers algorithms and complexity theory.
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.
Darwin's theory of evolution is based on key facts and the inferences drawn from them, which biologist Ernst Mayr summarised as follows: [6] Every species is fertile enough that if all offspring survived to reproduce, the population would grow (fact). Despite periodic fluctuations, populations remain roughly the same size (fact).
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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.
Van Valen also defined the Ecological Species Concept in 1976, in contrast to Ernst Mayr's Biological Species Concept. In 1991, he proposed that HeLa cells be defined as a new species, which was named Helacyton gartleri. [2] Van Valen originated the concept of fuzzy sets, prior to the formalization of this concept by L.A. Zadeh. [3]