Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Leigh_Van_Valen> ?p ?o }
- Leigh_Van_Valen abstract "Leigh Van Valen (August 12, 1935 – October 16, 2010) was an American evolutionary biologist. He was professor emeritus in the Department of Ecology and Evolution at the University of Chicago.Amongst other work, Van Valen's proposed \"Law of Extinction\" drew upon the apparent constant probability (as opposed to rate) of extinction in families of related organisms, based on data compiled from existing literature on the duration of tens of thousands of genera throughout the fossil record. Van Valen proposed the Red Queen Hypothesis (1973), as an explanatory tangent to the Law of Extinction. The Red Queen Hypothesis captures the idea that there is a constant 'arms race' between co-evolving species. Its name is a reference to the Red Queen's race in Lewis Carroll's Alice Through the Looking Glass, in which the chess board moves such that Alice must continue running just to stay in the same place.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.Van Valen originated the concept of fuzzy sets, prior to the formalization of this concept by L.A. Zadeh. He was the editor of the journal Evolutionary Theory, which he printed on simple paper stock under the motto, \"Substance over form.\"He had a deep understanding of many fields outside of biology, including measure theory, probability theory, logic, thermodynamics, epistemology and the philosophy of science. It is widely thought that the unusual breadth and depth of his knowledge contributed to his great originality in the field of biology and elsewhere.As a biologist, Van Valen considered the role of zoological and botanical gardens, in a world with a degrading natural environment, to be essential for the safeguard of endangered flora and fauna.".
- Leigh_Van_Valen birthDate "1935-08-12".
- Leigh_Van_Valen birthPlace Albany,_New_York.
- Leigh_Van_Valen birthYear "1935".
- Leigh_Van_Valen deathDate "2010-10-16".
- Leigh_Van_Valen deathPlace Chicago.
- Leigh_Van_Valen deathYear "2010".
- Leigh_Van_Valen knownFor Red_Queen_hypothesis.
- Leigh_Van_Valen nationality United_States.
- Leigh_Van_Valen occupation Evolutionary_biology.
- Leigh_Van_Valen occupation Leigh_Van_Valen__1.
- Leigh_Van_Valen stateOfOrigin United_States.
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- Leigh_Van_Valen wikiPageWikiLink Albany,_New_York.
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- Leigh_Van_Valen wikiPageWikiLink Epistemology.
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- Leigh_Van_Valen wikiPageWikiLink Measure_(mathematics).
- Leigh_Van_Valen wikiPageWikiLink Miami_University.
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- Leigh_Van_Valen wikiPageWikiLink Red_Queen_hypothesis.
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- Leigh_Van_Valen wikiPageWikiLink St._Mary_of_Nazareth_Hospital_Center.
- Leigh_Van_Valen wikiPageWikiLink Theodosius_Dobzhansky.
- Leigh_Van_Valen wikiPageWikiLink Thermodynamics.
- Leigh_Van_Valen wikiPageWikiLink Through_the_Looking-Glass.
- Leigh_Van_Valen wikiPageWikiLink United_States.
- Leigh_Van_Valen wikiPageWikiLink University_of_Chicago.
- Leigh_Van_Valen wikiPageWikiLinkText "Leigh Van Valen".
- Leigh_Van_Valen wikiPageWikiLinkText "Valen".
- Leigh_Van_Valen wikiPageWikiLinkText "Van Valen".
- Leigh_Van_Valen birthDate "1935-08-12".
- Leigh_Van_Valen birthPlace Albany,_New_York.
- Leigh_Van_Valen caption "Van Valen in 1981".
- Leigh_Van_Valen deathDate "2010-10-16".
- Leigh_Van_Valen deathPlace Chicago.
- Leigh_Van_Valen knownFor Red_Queen_hypothesis.
- Leigh_Van_Valen name "Leigh Van Valen".
- Leigh_Van_Valen nationality United_States.
- Leigh_Van_Valen occupation Evolutionary_biology.
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- Leigh_Van_Valen subject Category:1935_births.
- Leigh_Van_Valen subject Category:2010_deaths.
- Leigh_Van_Valen subject Category:American_biologists.
- Leigh_Van_Valen subject Category:Cancer_deaths_in_Illinois.
- Leigh_Van_Valen subject Category:Deaths_from_leukemia.
- Leigh_Van_Valen subject Category:Evolutionary_biologists.
- Leigh_Van_Valen subject Category:University_of_Chicago_faculty.
- Leigh_Van_Valen hypernym Biologist.
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- Leigh_Van_Valen comment "Leigh Van Valen (August 12, 1935 – October 16, 2010) was an American evolutionary biologist. He was professor emeritus in the Department of Ecology and Evolution at the University of Chicago.Amongst other work, Van Valen's proposed \"Law of Extinction\" drew upon the apparent constant probability (as opposed to rate) of extinction in families of related organisms, based on data compiled from existing literature on the duration of tens of thousands of genera throughout the fossil record.".
- Leigh_Van_Valen label "Leigh Van Valen".
- Leigh_Van_Valen sameAs Q1815056.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.