One example of microevolution often cited in textbooks is the peppered moth species biston betularia in great britain. Depending on whether you choose to hunt in a preindustrial or postindustrial forest you will find either the dark moth or the light moth easier to catch. Peppered moth simulation maddy moore 8th grade science. The peppered moth biston betularia is a temperate species of nightflying moth. Download peppered moth simulation memorandum pdf document. Read and answer the questions in data analysis, impact of pollution, and kettlewells experiments.
What are the natural color variations of the peppered moth. After the industrial revolution what color of moths was most common in the population. Peppered moth simulation surina livingston 8th grade science. Peppered moths changing colors in various level of pollution. Allele m is dominant to m, and its presence leads to a greater production of melanin that darkens the moth s body color. The evolution of the peppered moth is an evolutionary instance of directional colour change in. Peppered moth simulation jacob royle 8th grade science. Most of the peppered moths in the area were light colored with dark spots. Play the peppered moths gameget your beaks ready, its mothhunting time. Students cut out the statements on the evolution of the peppered moth and then place them in the correct order. Every time you eat a moth, you will hear the crunch of his. Goodbye, peppered moths a classic evolutionary story comes unstuck.
In the peppered moths game, you take on the role of the hunter. The economic changes known as the industrial revolution began in the middle of the eighteenth century. Sheet1 name,moth graph date hour directions everyone makes their own graph. They are called peppered moths because they have small dark spots on their wings. Why were the original peppered moths protected from predators. Industrial melanism is a term used to describe the adaptation of a. On this page you can read or download peppered moth simulation memorandum pdf in pdf format.
Powered by create your own unique website with customizable templates. Materials light bark paper, dark bark paper, 10 light moths, 10 dark moths, colored pencils, forceps, clock with second hand. I ask the students to get a computer and navigate to edmodo, where i have posted the peppered moths guided notes sheet. He had a formidable knowledge of lepidoptera berry, 1990 and made his own independent research plans rudge, 2006, 2010, but many of his. Play the part of a predatory bird hunting for moths in the forest. Describe the importance of coloration in avoiding predation. You have one minute to eat as many moths as you can. Peppered moth evolution is an example of population genetics and natural selection the caterpillars of the peppered moth not only mimic the form but also the colour of a twig. They can also add a picture to describe what is happening at each stage. At the end of each simulation, record the percent of moths. Simulate changes in moth population due to pollution and predation, and observe how species traits can change from one generation to the next due to natural selection.
The critics of the peppered moth case should stick to topics they know something about. Learn vocabulary, terms, and more with flashcards, games, and other study tools. When you are ready to run the simulation, click on run lichen light colored forest and start the timer at the top of the page. Lsu biol 3040 evolution of the peppered moth duration. A classic example of natural selection is the case of the peppered moth. Peppered moth simulation free download as pdf file. To illustrate the principles of natural selection and population genetics. View peppered moth simulation 3 from english 102 at university of south carolina. Behavioural studies on the peppered moth biston betularia. See what impact eating more light or dark moths has on moth population. Relate environmental change to changes in organisms.
Add an optional name in the box below to appear on the print summary. In this activity from arkive students observe images and video material with web access of pale and dark forms of peppered moth. A single locus with two alleles is responsible for determining the body color phenotype. Charles darwin accumulated a tremendous collection of facts to support the theory of evolution by natural. During the simulation, you are a bluejay that eats moths. Tutt explicitly linked peppered moth melanism to natural selection. Make a copy of this document and when complete submit it on schoology. Explain the concept of natural selection using your moths as an example. Peppered moth simulation evolutionary biology organisms scribd. Their creationist faiths belong in religious education classes, not biology lessons. The lightbodied moths were able to blend in with the light coloured lichens and. Near manchester england in 1848 the first documentation of a dark peppered moth was reported.
Since then, tons of soot have been deposited on the country side around industrial areas. Natural selection virtual lab peppered moth simulation objective. Pdf colour variation in the peppered moth biston betularia was long accepted to be under strong natural selection. Were there any dark peppered moths in england in the year 1847. By 1895, 98 percent of moths in manchester, england, had black bodies, and only two percent had the original. Use mathematical data to support how the adaptations of different colored moths can survive in particular. The melanic form is camouflaged on dark tree branches. As the industrial revolution progressed, the treee trunks.
Charles darwin accumulated a tremendous collection of facts to support the theory of evolution by natural selection. Charles darwin accumulated a tremendous collection of facts to. After 2 minutes, what percent of the moth population was light and what percent was dark light moth population. One of his difficulties in demonstrating the theory, however. That was the intellectual environment in which kettlewell began work on melanism in lepidoptera in general and the peppered moth in particular kettlewell, 1956, 1973. At the end of each simulation, record the percent of moths captured in the table below. What are the natural predators of the peppered moth. In the evolution game youre a small primate in the eocene forests of 50 million years ago, but the world is changing. Describe the importance of coloration in avoiding predation relate environmental change to changes in organisms explain how natural selection causes populations to change. About 75% of all pairings showed some merging of one pair of wings, frequently.
Before the industrial revolution, the trunks of the trees in the forest around manchester were light grayishgreen due to the presence of lichens. The only factor different between the two types of moths is the color of the wings. By 1900, what percentage of peppered moths were of the dark variation. You will analyze how color affects an organisms ability to survive in certain environments. Describe the importance of coloration in avoiding predation relate environmental change to changes in organisms explain how natural selection causes populations to change background. Charles darwin accumulated a tremendous collection of facts to support the theory of. In 1848 nearly all peppered moths had white bodies with small black spots, but a few had black bodies. Introduction in britain, the peppered moth occurs in two forms, a lightcoloured mottled phenotype and a darkcoloured melanic phenotype. The activity uses the relative number of pale and dark forms in different environments as a model for evolution. Relate how environmental change can lead to changes in organisms. Explain how the color of the moths increases or decreases their chances of survival.
The sheet guides the students through the peppered moths interactive created by craig davis in the peppered moths activity, students first explore the life cycle of the peppered moth, continue on to the impact of pollution and kettlewells experiment. The textbook story of englands famous peppered moths biston betularia goes like this. Simulate changes in moth population due to pollution and predation, and observe how species can change over time. Through the 19th century, the melanic form increased in frequency until, near industrial regions, it was the normal type of the moth. A wonderful activity that shows how different camouflage leads to selective predation and so to a change in the population. Who first suggested that the peppered moth color change was a result of natural selection. Fill in the heading on this form at the top of this page.
Describe the importance of coloration in assisting organisms to avoid predation. If you dont see any interesting for you, use our search form on bottom v. Natural selection student handout the young scientist program. How does the color of the moth affect its survival. Natural selection in the peppered moth aim the aim of this exercise is to see how the concept of natural selection works using the example of the peppered moth discussed in the talk. In this lab, you will simulate how predators locate prey in different environments.
Explain how natural selection causes populations to. One such example is the evolution of the peppered moth biston betularia. During the simulation, graphs at the bottom will record any changes in the population. Open the simulation and play the role of the bird in both the dark and the light forest.
Before the industrial revolution in england most if not all of the peppered moths looked like this. The effect of moths darkening due to pollution is known as. Try to behave as a bird would behave, choosing the moths that are the most obvious. What scientist experimented with peppered moths in during the 1950s. In the dark forest, after the end of the simulation. Recent research indicates that the caterpillars can sense the twigs colour with their skin and match their body colour to.