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Peppered moth, carbonaria type on the left, and typica on the right. Kettlewell's experiment was a biological experiment in the mid-1950s to study the evolutionary mechanism of industrial melanism in the peppered moth (Biston betularia). [1][2] It was executed by Bernard Kettlewell, working as a research fellow in the Department of Zoology ...
Henry Bernard Davis Kettlewell (24 February 1907 – 11 May 1979) [ 1] was a British geneticist, lepidopterist and medical doctor, who performed research on the influence of industrial melanism on peppered moth ( Biston betularia) coloration, showing why moths are darker in polluted areas. This experiment is cited as a classic demonstration of ...
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism. Later, when pollution was reduced, the light-coloured form again ...
The experiments with the peppered moths, as described in this book, are arguably the most dramatic and best known case of adaptive evolution.For many people at that time, this was the first evidence that they could see evolution taking place in the world around them, and could see how fast evolution can go since Darwin came up with the hypothesis (Kettlewell, 1959).
Michael Eugene Nicolas Majerus (13 February 1954 – 27 January 2009) was a British geneticist and professor of evolution at the University of Cambridge. He was also a teaching fellow at Clare College, Cambridge. He was an enthusiast in Darwin's theory of evolution by natural selection and became a world authority in his field of insect ...
Industrial melanism is known from over 70 species of moth that Kettlewell found in England, and many others from Europe and North America. [17] Among these, Apamea crenata (clouded border brindle moth) and Acronicta rumicis (knot grass moth) are always polymorphic, though the melanic forms are more common in cities and (like those of the peppered moth) are declining in frequency as those ...
QH375 .H66 2002. Of Moths and Men is a book by journalist Judith Hooper about the Oxford University ecological genetics school led by E.B. Ford. The book specifically concerns Bernard Kettlewell 's experiments on the peppered moth which were intended as experimental validation of evolution. She highlights supposed problems with the methodology ...
Ford was the supervisor of Bernard Kettlewell during Kettlewell's famous experiments on the evolution of melanism in the peppered moth, Biston betularia. The entomologist Michael Majerus discussed criticisms that had been made of Kettlewell's experimental methods in his 1998 book Melanism: Evolution in Action. [22]