- peppered moth
▪ insectspecies of European moth in the family Geometridae (order Lepidoptera (lepidopteran)) that has speckled black-and-white wings. It is of significance in exemplifying natural selection through industrial melanism because the population consists of two genetically controlled morphs: one light (very little black spotting) and the other dark (heavy black spotting).Prior to 1848 the peppered moth existed mainly as the white-coloured morph. In 1848 a dark (melanic) morph of the peppered moth was first noticed in Manchester, Eng. By 1898 this dark morph outnumbered the light-coloured morph by 99 to 1. The explanation of this phenomenon is that dark moths, which originally were chance mutations (mutation), were highly visible to predators when resting on lichen-covered trees during the day. However, with the advent of air pollution (pollution) during the Industrial Revolution, coal soot covered the trees and killed the light-coloured lichens. This rendered the dark moths on the trees less conspicuous to bird predators than the previously cryptic light moth, leading to increased predation of light moths and reduced predation of dark moths. The difference in the colour morphs is genetically controlled and of interest as a striking example of rapid evolutionary change in a localized area.
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См. также в других словарях:
peppered moth — см. Приложение 1 (Biston betularia). (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
peppered moth — peppered moth. См. березовая пяденица. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
Peppered moth — Taxobox name = Peppered moth status = NE status system = IUCN3.1 image caption = Biston betularia betularia Verify source|date=July 2007 morpha typica image width = 240px regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Lepidoptera… … Wikipedia
peppered moth — noun : a European geometrid moth (Biston betularia) having white wings with small black specks * * * peppered moth noun A geometric moth that is white with black speckles but appears in a dark variety in polluted industrial areas • • • Main Entry … Useful english dictionary
peppered moth — noun Date: circa 1832 a European geometrid moth (Biston betularia) that typically has white wings with small black specks but also occurs as a solid black form especially in areas where the air is heavily polluted by industry … New Collegiate Dictionary
peppered moth — Biston betularia … Medical dictionary
Peppered moth evolution — This article is about the peppered moth s significance in evolutionary biology. For its evolutionary ancestry, see Insect evolution. Biston betularia f. typica, the white bodied peppered moth … Wikipedia
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Geometer moth — Temporal range: Priabonian to Recent 35–0 Ma … Wikipedia