"Lec 3 - Adaptive Evolution: Natural Selection" Principles of Evolution, Ecology and Behavior (EEB 122) Adaptive Evolution is driven by natural selection. Natural selection is not "survival of the fittest," but rather "reproduction of the fittest." Evolution can occur at many different speeds based on the strength of the selection driving it. These types of selection can result in directional, stabilizing, and disruptive outcomes. They can be driven by frequency-dependent selection and sexual selection, in addition to more standard types of selection. 00:00 - Chapter 1. Introduction 02:36 - Chapter 2. Strength of Selection and the Speed of Evolution 24:06 - Chapter 3. Why Evolution Can Be Slow 30:50 - Chapter 4. Types of Selection 42:01 - Chapter 5. Large Scale Selection Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
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Channels: Ecology
Tags: evolution adaptation natural selection adaptive evolution reproductive success antibiotic resistance survival of the fittest guppies MRSA coelacanth haldane normal distribution
Uploaded by: yaleevoeco ( Send Message ) on 02-09-2012.
Duration: 45m 53s
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Lec 1 - The Nature of Evolution: Selection, Inheritance, and History
Lec 2 - Basic Transmission Genetics
Lec 4 - Neutral Evolution: Genetic Drift
Lec 5 - How Selection Changes the Genetic Composition of Population
Lec 6 - The Origin and Maintenance of Genetic Variation
Lec 7 - The Importance of Development in Evolution
Lec 8 - The Expression of Variation: Reaction Norms
Lec 11 - Life History Evolution
Lec 14 - Species and Speciation
Lec 15 - Phylogeny and Systematics
Lec 16 - Comparative Methods: Trees, Maps, and Traits
Lec 17 - Key Events in Evolution
Lec 18 - Major Events in the Geological Theatre
Lec 19 - The Fossil Record and Life's History
Lec 21 - Evolutionary Medicine
Lec 22 - The Impact of Evolutionary Thought on the Social Sciences
Lec 24 - Climate and the Distribution of Life on Earth
Lec 25 - Interactions with the Physical Environment
Lec 26 - Population Growth: Density Effects
Lec 27 - Interspecific Competition
Lec 28 - Ecological Communities
Lec 29 - Island Biogeography and Invasive Species
Lec 30 - Energy and Matter in Ecosystems
Lec 31 - Why So Many Species? The Factors Affecting Biodiversity
Lec 32 - Economic Decisions for the Foraging Individual
Lec 33 - Evolutionary Game Theory: Fighting and Contests
Lec 34 - Mating Systems and Parental Care