Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Leigh_Van_Valen> ?p ?o. }
Showing items 1 to 90 of
90
with 100 items per page.
- Leigh_Van_Valen abstract "Leigh Maiorana 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[citation needed]. He had 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.On the same time, Van Valen as biologist considered the role of the zoological and botanical gardens, in a world where the natural environment is degraded more and more, essential for the safeguard of the endangered flora and the 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.
- Leigh_Van_Valen viafId "49073632".
- Leigh_Van_Valen wikiPageExternalLink vanvalen.html.
- Leigh_Van_Valen wikiPageExternalLink www.leighvanvalen.com.
- Leigh_Van_Valen wikiPageExternalLink 31valen.html?_r=1&scp=1&sq=valen&st=cse.
- Leigh_Van_Valen wikiPageID "1529788".
- Leigh_Van_Valen wikiPageRevisionID "589537852".
- 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 dateOfBirth "1935-08-12".
- Leigh_Van_Valen dateOfDeath "2010-10-16".
- Leigh_Van_Valen deathDate "2010-10-16".
- Leigh_Van_Valen deathPlace Chicago.
- Leigh_Van_Valen hasPhotoCollection Leigh_Van_Valen.
- Leigh_Van_Valen knownFor Red_Queen_hypothesis.
- Leigh_Van_Valen name "Leigh Maiorana Van Valen".
- Leigh_Van_Valen name "Van Valen, Leigh".
- Leigh_Van_Valen nationality United_States.
- Leigh_Van_Valen occupation Evolutionary_biology.
- Leigh_Van_Valen placeOfBirth Albany,_New_York.
- Leigh_Van_Valen placeOfDeath Chicago.
- Leigh_Van_Valen shortDescription "American biologist".
- Leigh_Van_Valen description "American biologist".
- Leigh_Van_Valen description "American biologist".
- 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 type AmericanBiologists.
- Leigh_Van_Valen type Biologist109855630.
- Leigh_Van_Valen type CausalAgent100007347.
- Leigh_Van_Valen type EvolutionaryBiologists.
- Leigh_Van_Valen type LivingThing100004258.
- Leigh_Van_Valen type Object100002684.
- Leigh_Van_Valen type Organism100004475.
- Leigh_Van_Valen type Person100007846.
- Leigh_Van_Valen type PhysicalEntity100001930.
- Leigh_Van_Valen type Scientist110560637.
- Leigh_Van_Valen type Whole100003553.
- Leigh_Van_Valen type YagoLegalActor.
- Leigh_Van_Valen type YagoLegalActorGeo.
- Leigh_Van_Valen type Agent.
- Leigh_Van_Valen type Person.
- Leigh_Van_Valen type Person.
- Leigh_Van_Valen type Q215627.
- Leigh_Van_Valen type Q5.
- Leigh_Van_Valen type Agent.
- Leigh_Van_Valen type NaturalPerson.
- Leigh_Van_Valen type Thing.
- Leigh_Van_Valen type Person.
- Leigh_Van_Valen comment "Leigh Maiorana 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 label "Leigh Van Valen".
- Leigh_Van_Valen label "Leigh Van Valen".
- Leigh_Van_Valen label "Leigh Van Valen".
- Leigh_Van_Valen label "Leigh Van Valen".
- Leigh_Van_Valen label "Leigh Van Valen".
- Leigh_Van_Valen label "リー・ヴァン・ヴェーレン".
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs リー・ヴァン・ヴェーレン.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen sameAs m.058cym.
- Leigh_Van_Valen sameAs Q1815056.
- Leigh_Van_Valen sameAs Q1815056.
- Leigh_Van_Valen sameAs Leigh_Van_Valen.
- Leigh_Van_Valen wasDerivedFrom Leigh_Van_Valen?oldid=589537852.
- Leigh_Van_Valen givenName "Leigh".
- Leigh_Van_Valen isPrimaryTopicOf Leigh_Van_Valen.
- Leigh_Van_Valen name "Leigh Maiorana Van Valen".
- Leigh_Van_Valen name "Leigh Van Valen".
- Leigh_Van_Valen name "Van Valen, Leigh".
- Leigh_Van_Valen surname "Van Valen".