Principles of Evolution, Ecology and Behavior

Yale Course , Spring 2009 , Prof. Stephen C. Stearns

27 students enrolled

Overview

The Nature of Evolution: Selection, Inheritance, and History - Basic Transmission Genetics - Adaptive Evolution: Natural Selection - Neutral Evolution: Genetic Drift - How Selection Changes the Genetic Composition of Population - The Origin and Maintenance of Genetic Variation - The Importance of Development in Evolution - The Expression of Variation: Reaction Norms - The Evolution of Sex - Genomic Conflict - Life History Evolution - Sex Allocation - Sexual Selection - Species and Speciation - Phylogeny and Systematics - Comparative Methods: Trees, Maps, and Traits - Key Events in Evolution - Major Events in the Geological Theatre - The Fossil Record and Life's History - Coevolution - Evolutionary Medicine - The Impact of Evolutionary Thought on the Social Sciences - The Logic of Science - Climate and the Distribution of Life on Earth - Interactions with the Physical Environment - Population Growth: Density Effects - Interspecific Competition - Ecological Communities - Island Biogeography and Invasive Species - Energy and Matter in Ecosystems - Why So Many Species? The Factors Affecting Biodiversity - Economic Decisions for the Foraging Individual - Evolutionary Game Theory: Fighting and Contests - Mating Systems and Parental Care - Alternative Breeding Strategies - Selfishness and Altruism

Lecture 13: Sexual Selection

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        Lecture Details

        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. 0000 - Chapter 1. Introduction 0653 - Chapter 2. Competing and Choosing 1311 - Chapter 3. Competition with Sexual Dimorphism 2729 - Chapter 4. Honest, Costly Signaling 3555 - Chapter 5. Selection through Perception and Polyandry 4335 - Chapter 6. Summary Complete course materials are available at the Open Yale Courses website httpopen.yale.educourses This course was recorded in Spring 2009.


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