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    Lec 13 - Sexual Selection

    "Lec 13 - Sexual Selection" Principles of Evolution, Ecology and Behavior (EEB 122) Sexual selection is a component of natural selection in which mating success is traded for survival. Natural selection is not necessarily survival of the fittest, but reproduction of the fittest. Sexual dimorphism is a product of sexual selection. In intersexual selection, a sex chooses a mate. In intrasexual selection, individuals of one sex compete among themselves for access to mates. Often honest, costly signals are used to help the sex that chooses make decisions. 00:00 - Chapter 1. Introduction 06:53 - Chapter 2. Competing and Choosing 13:11 - Chapter 3. Competition with Sexual Dimorphism 27:29 - Chapter 4. Honest, Costly Signaling 35:55 - Chapter 5. Selection through Perception and Polyandry 43:35 - Chapter 6. Summary 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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    Lec 1 - The Nature of Evolution: Selection, Inheritance, and History

    Lec 2 - Basic Transmission Genetics

    Lec 3 - Adaptive Evolution: Natural Selection

    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 9 - The Evolution of Sex

    Lec 10 - Genomic Conflict

    Lec 11 - Life History Evolution

    Lec 12 - Sex Allocation

    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 20 - Coevolution

    Lec 21 - Evolutionary Medicine

    Lec 22 - The Impact of Evolutionary Thought on the Social Sciences

    Lec 23 - The Logic of Science

    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

    Lec 35 - Alternative Breeding Strategies

    Lec Last - Selfishness and Altruism