Name: Billie Jo Ellison Date: March 31‚ 2012 Title: The Beaks of Finches # of the Lab: Purpose: The purpose of this lab is to be able to work with different tools that will serve to model finch “beaks” and compete with other “finch” species to see which “beak” best adapted for obtaining specific food. Materials: 1 small plastic dish or cup‚ 1 large non-breakable dish‚ 1 tool to serve as a “beak”‚ large seed‚ small seed‚ 2 pairs
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The volcanic islands known as the Galapagos Islands are found 600 miles off the coast of Ecuador and are home to the Galapagos penguins‚ the only species of penguins in the world to live north of the equator. Despite the common belief that penguins only live in the Arctic‚ the Galapagos Islands have temperatures that vary from 70-90º Fahrenheit over the course of the year. The distribution of these birds in their environment correlates with the “Cromwell Current‚ which provides cold nutrient-rich
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Features * The Galapagos shark was named after the islands where the shark was found. The Galapagos shark is a large‚ thin shark. The shark is brownish or grey black and has black sides and a white underside. PICTURE The first dorsal fin shark was tall‚ narrow and almost straight‚ and a low ridge leads to the small‚ second dorsal fin. The trailing edges of the fins may be darker than the rest of the body‚ and the tips may be a dusty colour. The shark is slightly different to most sharks because
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Welcome to the Galapagos Islands! The Galapagos are an archipelago of several volcanic islands located in the Pacific Ocean. The archipelago consists of 13 major islands‚ six minor islands‚ and 40 smaller rock formations and reefs spread out over 17‚000 square miles of ocean. They are born to create fire‚ and in the last 200 years a remarkable 50 plus eruptions have occurred. Looking into the geographic location and plate tectonic settings can easily help show why more than 50 eruptions have occurred
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evolution‚ natural selection‚ range‚ stabilizing selection Prior Knowledge Questions (Do these BEFORE using the Gizmo.) During the voyage of the HMS Beagle (1831–1836)‚ the young Charles Darwin collected several species of finches from the Galápagos Islands. Two of Darwin’s finches are shown below. 1. Which species do you think is best adapted to a diet of small‚ delicate seeds? Explain why you think so. _______________________________________________________
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species and is a key component of evolution. Natural Selection occurs when a subject has a feature that enables to be able to survive more easily than those without it. Take for example the Galapagos Finches (Darwin’s Finches). Found on the Galapagos Islands in the Pacific Ocean are a group of about 13 types of finches
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The Beak of the Finch by Jonathan Weiner explores evolution through the most famous examples in history—the finches of the Galápagos Islands. Charles Darwin’s theory of natural selection and the process of evolution are applied directly to what scientists refer to as Darwin’s Finches. Weiner follows scientists Peter and Rosemary Grant as they study the finches in real time on the Galápagos. Years of previous work‚ study and data is collected and analyzed. Different species of animals are observed
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experiment is based on Charles Darwin’s observations of finches made in the Galapagos Islands. He noted that different neighboring islands in the Galapagos had distinctly different types of finches. He theorized that this was caused by natural selection‚ where the environment determined the characteristics of the species in it. In the Evolution Lab Experiment‚ I looked at how beak size and population numbers for two hypothetical populations of finches on two different islands evolved in response to factors
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Looks Can Be Deceiving! • These meadowlarks look very similar yet they are not the same species. Definition of Species • A species is a group of interbreeding organisms that produce viable‚ fertile offspring in nature. • Members of a species will interbreed with one another but not other organisms outside of the species. (At least most of the time!) Macroevolution vs. Microevolution • Macroevolution is evolution on a scale of separated gene pools. • Macroevolutionary studies focus on change
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Santiago Islands Introduction Few places are better suited for the study of biodiversity and evolution than the Galapagos Islands‚ home to Darwin’s finches. Free of most anthropogenic influences‚ these islands provide researchers with a natural‚ undisturbed environment in which to study the functions of natural selection as Darwin did 177 years ago (Grant‚ 2003). Since then‚ Darwin’s finches have been studied extensively for the insight they provide into the evolutionary questions of adaptation and
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