Nicholas Barton | |
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Born | Nicholas Hamilton Barton 30 August 1955 |
Citizenship | British |
Alma mater |
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Known for | Evolution textbook [1] |
Awards |
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Scientific career | |
Fields | Evolutionary biology |
Institutions | |
Thesis | A narrow hybrid zone in the alpine grasshopper podisma pedestris (1979) |
Doctoral advisor | Godfrey Hewitt [2] |
Nicholas Hamilton Barton FRS FRSE (born 30 August 1955) is a British evolutionary biologist. [3] [4] [5] [6] [7] [8]
Barton was educated at Peterhouse, Cambridge where he graduated with a first-class degree in biological sciences in 1976 and gained his PhD supervised by Godfrey Hewitt at the University of East Anglia in 1979. [2]
After a brief spell as a lab demonstrator at the University of Cambridge, Barton became a Lecturer at the Department of Genetics and Biometry, University College London, in 1982. Professor Barton is best known for his work on hybrid zones, often using the toad Bombina bombina as a study organism, and for extending the mathematical machinery needed to investigate multilocus genetics, a field in which he worked in collaboration with Michael Turelli. Research questions he has investigated include: the role of epistasis, the evolution of sex, speciation, and the limits on the rate of adaptation.
Barton moved to the University of Edinburgh in 1990, where he is said to have been instrumental in attracting to Edinburgh Brian and Deborah Charlesworth, with whom he had previously collaborated, thus complementing the university's strong tradition in quantitative genetics and population genetics and helping the University of Edinburgh to continue as one of the most important research institutions in evolutionary genetics worldwide. Barton was made a professor in 1994. In 2008 Barton moved to Klosterneuburg (Austria) where he became the first professor at the Institute of Science and Technology Austria.
In 2007, Barton, along with Derek E.G. Briggs, Jonathan A. Eisen, David B. Goldstein, and Nipam H. Patel, collaborated to create Evolution, [1] an undergraduate textbook which integrates molecular biology, genomics, and human genetics with traditional evolutionary studies.
Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. The process of evolution has given rise to biodiversity at every level of biological organisation.
Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages. Charles Darwin was the first to describe the role of natural selection in speciation in his 1859 book On the Origin of Species. He also identified sexual selection as a likely mechanism, but found it problematic.
Allopatric speciation – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow.
Genetics and the Origin of Species is a 1937 book by the Ukrainian-American evolutionary biologist Theodosius Dobzhansky. It is regarded as one of the most important works of modern synthesis and was one of the earliest. The book popularized the work of population genetics to other biologists and influenced their appreciation for the genetic basis of evolution. In his book, Dobzhansky applied the theoretical work of Sewall Wright (1889–1988) to the study of natural populations, allowing him to address evolutionary problems in a novel way during his time. Dobzhansky implements theories of mutation, natural selection, and speciation throughout his book to explain the habits of populations and the resulting effects on their genetic behavior. The book explains evolution in depth as a process over time that accounts for the diversity of all life on Earth. The study of evolution was present, but greatly neglected at the time. Dobzhansky illustrates that evolution regarding the origin and nature of species during this time in history was deemed mysterious, but had expanding potential for progress to be made in its field.
George Ledyard Stebbins Jr. was an American botanist and geneticist who is widely regarded as one of the leading evolutionary biologists of the 20th century. Stebbins received his Ph.D. in botany from Harvard University in 1931. He went on to the University of California, Berkeley, where his work with E. B. Babcock on the genetic evolution of plant species, and his association with a group of evolutionary biologists known as the Bay Area Biosystematists, led him to develop a comprehensive synthesis of plant evolution incorporating genetics.
Brian Charlesworth is a British evolutionary biologist at the University of Edinburgh, and editor of Biology Letters. Since 1997, he has been Royal Society Research Professor at the Institute of Evolutionary Biology (IEB) in Edinburgh. He has been married since 1967 to the British evolutionary biologist Deborah Charlesworth.
The European fire-bellied toad is a species of fire-bellied toad native to eastern parts of mainland Europe, where it can be found near waterbodies such as ponds and marshes. It is known for its red colored belly used to ward off predators, an example of aposematism, and its distinctive "whoop" call.
In parapatric speciation, two subpopulations of a species evolve reproductive isolation from one another while continuing to exchange genes. This mode of speciation has three distinguishing characteristics: 1) mating occurs non-randomly, 2) gene flow occurs unequally, and 3) populations exist in either continuous or discontinuous geographic ranges. This distribution pattern may be the result of unequal dispersal, incomplete geographical barriers, or divergent expressions of behavior, among other things. Parapatric speciation predicts that hybrid zones will often exist at the junction between the two populations.
Derek Ernest Gilmor Briggs is an Irish palaeontologist and taphonomist based at Yale University. Briggs is one of three palaeontologists, along with Harry Blackmore Whittington and Simon Conway Morris, who were key in the reinterpretation of the fossils of the Burgess Shale. He is the Yale University G. Evelyn Hutchinson Professor of Geology and Geophysics, Curator of Invertebrate Paleontology at Yale's Peabody Museum of Natural History, and former Director of the Peabody Museum.
Joseph "Joe" Felsenstein is a Professor Emeritus in the Departments of Genome Sciences and Biology at the University of Washington in Seattle. He is best known for his work on phylogenetic inference, and is the author of Inferring Phylogenies, and principal author and distributor of the package of phylogenetic inference programs called PHYLIP. Closely related to his work on phylogenetic inference is his introduction of methods for making statistically independent comparisons using phylogenies.
H. Allen Orr is the Shirley Cox Kearns Professor of Biology at the University of Rochester.
James Mallet is an evolutionary zoologist specialising in entomology.
Jonathan Andrew Eisen is an American evolutionary biologist, currently working at University of California, Davis. His academic research is in the fields of evolutionary biology, genomics and microbiology and he is the academic editor-in-chief of the open access journal PLOS Biology.
The A.O. Kovalevsky Medal, awarded annually by the St. Petersburg Society of Naturalists for extraordinary achievements in evolutionary developmental biology and comparative zoology, is named after the noted Russian embryologist Alexander Onufrievich Kovalevsky. Since 2002, only one medal has been awarded annually .{Mikhailov and Gilbert, 2002}
Godfrey Matthew Hewitt was a British professor and evolutionary geneticist at the University of East Anglia who was very influential in the development of the fields of molecular ecology, phylogeography, speciation and hybridisation.
Peter D. Keightley FRS is Professor of Evolutionary Genetics at the Institute of Evolutionary Biology in School of Biological Sciences at the University of Edinburgh.
Reinforcement is a process of speciation where natural selection increases the reproductive isolation between two populations of species. This occurs as a result of selection acting against the production of hybrid individuals of low fitness. The idea was originally developed by Alfred Russel Wallace and is sometimes referred to as the Wallace effect. The modern concept of reinforcement originates from Theodosius Dobzhansky. He envisioned a species separated allopatrically, where during secondary contact the two populations mate, producing hybrids with lower fitness. Natural selection results from the hybrid's inability to produce viable offspring; thus members of one species who do not mate with members of the other have greater reproductive success. This favors the evolution of greater prezygotic isolation. Reinforcement is one of the few cases in which selection can favor an increase in prezygotic isolation, influencing the process of speciation directly. This aspect has been particularly appealing among evolutionary biologists.
The scientific study of speciation — how species evolve to become new species — began around the time of Charles Darwin in the middle of the 19th century. Many naturalists at the time recognized the relationship between biogeography and the evolution of species. The 20th century saw the growth of the field of speciation, with major contributors such as Ernst Mayr researching and documenting species' geographic patterns and relationships. The field grew in prominence with the modern evolutionary synthesis in the early part of that century. Since then, research on speciation has expanded immensely.
Mark A. Kirkpatrick is a theoretical population geneticist and evolutionary biologist. He currently holds the T. S. Painter Centennial Professorship in Genetics in the Department of Integrative Biology at the University of Texas at Austin. His research touches on a wide variety of topics, including the evolution of sex chromosomes, sexual selection, and speciation. Kirkpatrick is the co-author, along with Douglas J. Futuyma, of a popular undergraduate evolution textbook. He is a member of the United States National Academy of Sciences.
Roger Kenneth Butlin is a British evolutionary biologist and professor at the University of Sheffield. He is known for his work on speciation. He served as Editor of Heredity from 2009 to 2012, and President of the Society for the Study of Evolution from 2013 to 2015. In 2015 he received the Darwin Wallace Medal.