Principles of Evolution, Ecology and Behavior

Yale , Prof.Stephen C. Stearns

LECTURE26 :

Population Growth: Density Effects

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Lecture Description

Principles of Evolution, Ecology and Behavior (EEB 122) The growth of populations is held in check by several factors. These can include predators, food and other resources, and density. Population density affects growth rate by determining how likely is it that an organism will interact with a member of its own species compared to an organism of a different species. Population growth studies rely on the mathematics of logs and exponents. 00:00 - Chapter 1. Introduction 03:02 - Chapter 2. The Math of Population Growth 09:15 - Chapter 3. The Effects of Age on Population Growth 16:50 - Chapter 4. Examples of Population Growth 24:31 - Chapter 5. The Effects of Density on Population Growth 39:07 - Chapter 6. Conclusion Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This 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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