Search results
Results from the WOW.Com Content Network
The peppered moth (Biston betularia) is a temperate species of night-flying moth. [1] It is mostly found in the northern hemisphere in places like Asia, Europe and North America. Peppered moth evolution is an example of population genetics and natural selection. [2] The caterpillars of the peppered moth not only mimic the form but also the ...
The Peppered Moth: Decline of a Darwinian Disciple. This is the transcript of Michael Majerus' lecture delivered to the British Humanist Association on Darwin Day 2004. The Peppered Moth: The Proof of Darwinian Evolution. This is the transcript of Majerus' lecture given at the European Society for Evolutionary Biology meeting on 23 August 2007.
Peppered moth insularia on the bark of a lichen-covered birch. By the time of Kettlewell, it was known in England that there were three varieties of peppered moth. The normal, typica, is whitish-grey in colour with dark speckles on the wings. The colour was a perfect camouflage on light-coloured trees covered with lichens.
One of the best known modern examples of the role that evolution has played in insect defenses is the link between melanism and the peppered moth (Biston betularia). Peppered moth evolution over the past two centuries in England has taken place, with darker morphs becoming more prevalent over lighter morphs so as to reduce the risk of predation ...
The morphology of scales has been studied by J. C. Downey and A. C. Allyn (1975) [38] and scales have been classified into three groups, namely hair-like, or piliform, blade-like, or lamellar and other variable forms. [8] Primitive moths (non-Glossata and Eriocranidae) have "solid" scales which are imperforate, i.e., they lack a lumen. [8]
Biston is a genus of large, long-winged moths belonging to the family Geometridae. It is most notable for containing the well-known peppered moth . The genus was first described by William Elford Leach in 1815.
Directional selection can be observed in finch beak size, peppered moth color, African cichlid mouth types, and sockeye salmon migration periods. If there is continuous allele frequency change as a result of directional selection generation from generation, there will be observable changes in the phenotypes of the entire population over time.
Ennominae is the largest subfamily of the geometer moth family (Geometridae), with some 9,700 described species in 1,100 genera. Most species are fairly small, though some (such as the peppered moth) grow to be considerably large. This subfamily has a global distribution.