Anagram & Information om | Engelska ordet MELANISM

Exempel på hur man kan använda MELANISM i en mening

• Ford was the supervisor of Bernard Kettlewell during Kettlewell's famous experiments on the evolution of melanism in the peppered moth, Biston betularia.
• Henry Bernard Davis Kettlewell (24 February 1907 – 11 May 1979) 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.
• His research work was largely focussed around insect species, particularly the peppered moth and ladybirds, but explored these from many different perspectives including melanism, male killers, sexual selection, sexually transmitted diseases, animal colouration, invasive species, and biological pest control.
• 'An examination of intraseasonal variation in the incidence of melanism in peppered moths, Biston betularia (Geometridae).
• The Evolution of Melanism: a study of recurring necessity; with special reference to industrial melanism in the Lepidoptera is a 1973 science book by the lepidopterist Bernard Kettlewell.
• Typically, adaptive melanism is heritable: A dominant allele, which is entirely or nearly entirely expressed in the phenotype, is responsible for the excessive amount of melanin.
• The bottom shell (plastron) is yellow or orange-yellow and a black spot is present on each section (scute); however, with age, melanism of the plastron increases until the entire surface is black.
• He was a founding editor of the journal Entomologists' Record from 1890 and published a landmark series on the British Lepidoptera in which he described numerous species of moths and was among the first to notice industrial melanism in the pepper moth Biston betularia and was among the first to provide a clear explanation of their increasing frequency based on the role of crypsis, natural selection by predators, and the effect of changed environmental conditions brought on by industrialism.
• Tsunami is spotted, but Jahzara is a melanistic jaglion due to inheriting the jaguar's dominant melanism gene.
• With regard to black squirrels and melanism, two major theories dominate the literature, that its frequency is the result of crypsis, and/or the result of thermoregulation.
• It is also seen in a beetle, Adalia bipunctata (two-spot ladybird), where camouflage is not involved as the insect has conspicuous warning coloration, and in the seasnake Emydocephalus annulatus where the melanism may help in excretion of trace elements through sloughing of the skin.
• While axanthism commonly makes green animals blue, it can also make the animal gray or even black, making it appear as if the animal has melanism; though they can be distinguished by how axanthic animals are slightly lighter and how melanistic animals produce more melanophores.
• The moth's evolution has been affected by the industrial melanism that occurred in Europe during the late 19th and early 20th centuries, causing a dramatic increase in two aberrations (salicin and lugubris), which have darker grey wings.
• The oak beauty exhibits melanism and comes in two different variations; a dark (melanic) form and light (typica) form.
• Anteaters are known to experience color abnormalities, including albinism in giant anteaters and albinism, leucism, and melanism in the southern tamandua.
• Albert Brydges Farn (9 October 1841 – 1921) was a British amateur entomologist, chiefly remembered nowadays for a letter he wrote on 1878 to Charles Darwin describing industrial melanism in the annulet moth (Charissa obscurata) and suggesting natural selection as the process involved in pale forms getting rarer.

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