Principles of Evolution, Ecology and Behavior

Yale , Prof.Stephen C. Stearns

LECTURE31 :

Why So Many Species? The Factors Affecting Biodiversity

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Lecture Description

Principles of Evolution, Ecology and Behavior (EEB 122)One can look at biodiversity from several perspectives. An ecological point of view tries to determine how necessary diversity is for an ecosystem to function. An economic point of view tries to capture the value of the "services" nature provides for mankind. An evolutionary point of view shows how artificial the human "right" to dominance is. Finally, a personal point of view captures the emotional basis for the values that humans place on biodiversity.00:00 - Chapter 1. Introduction 05:39 - Chapter 2. The Ecological Perspective 11:45 - Chapter 3. The Economic Perspective 21:12 - Chapter 4. The Evolutionary Perspective 26:18 - Chapter 5. The Personal Perspective 33:01 - Chapter 6. What to Do? 45:28 - Chapter 7. ConclusionComplete course materials are available at the Open Yale Courses website: http://open.yale.edu/coursesThis course was recorded in Spring 2009.

Course Description

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

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