Principles of Evolution, Ecology and Behavior

Yale , Prof.Stephen C. Stearns

LECTURE15 :

Phylogeny and Systematics

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Lecture Description

Principles of Evolution, Ecology and Behavior (EEB 122)The Tree of Life must be discovered through rigorous analysis. Genetic information is crucial because appearances can be deceiving, and species that look similar can prove to be genetically very dissimilar and not share recent common ancestors. Two criteria, used to determine what the "correct" Tree is, are simplicity and whether the tree maximizes the probability of observing what we actually see.00:00 - Chapter 1. Introduction 04:30 - Chapter 2. Grouping by Common Ancestry 15:11 - Chapter 3. Misleading Analogies 24:43 - Chapter 4. The Process of Phylogenetic Grouping 35:04 - Chapter 5. The Logic of Grouping by Shared Characteristics 42:56 - Chapter 6. SummaryComplete 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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