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EEB 122 - Principles of Evolution, Ecology and Behavior

Lecture 08 - The Expression of Variation: Reaction Norms. Reaction norms depict the range of phenotypes a single genotype can produce, depending on the environment. Reaction norms must fit within an organism's phylogenetic constraints. They can differ for different individuals within a population, but some traits differ very little based on the environment; some do not differ at all. (from oyc.yale.edu)

Lecture 08 - The Expression of Variation: Reaction Norms

Time Lecture Chapters
[00:00:00] 1. Introduction
[00:03:22] 2. Reaction Norms
[00:12:10] 3. Reaction Norms in Populations
[00:23:42] 4. Developmental Constraints on Reaction Norms
[00:36:23] 5. Benefits and Limitations of Studying Reaction Norms

References
Lecture 8 - The Expression of Variation: Reaction Norms
Instructor: Stephen C. Stearns. Transcript [html]. Audio [mp3]. Download Video [mov].

Go to the Course Home or watch other lectures:

Lecture 01 - The Nature of Evolution: Selection, Inheritance, and History
Lecture 02 - Basic Transmission Genetics
Lecture 03 - Adaptive Evolution: Natural Selection
Lecture 04 - Natural Evolution: Genetic Drift
Lecture 05 - How Selection Changes the Genetic Composition of Population
Lecture 06 - The Origin and Maintenance of Genetic Variation
Lecture 07 - The Importance of Development in Evolution
Lecture 08 - The Expression of Variation: Reaction Norms
Lecture 09 - The Evolution of Sex
Lecture 10 - Genomic Conflict
Lecture 11 - Life History Evolution
Lecture 12 - Sex Allocation
Lecture 13 - Sexual Selection
Lecture 14 - Species and Speciation
Lecture 15 - Phylogeny and Systematics
Lecture 16 - Comparative Methods: Trees, Maps, and Traits
Lecture 17 - Key Events in Evolution
Lecture 18 - Major Events in the Geological Theatre
Lecture 19 - The Fossil Record and Life's History
Lecture 20 - Coevolution
Lecture 21 - Evolutionary Medicine
Lecture 22 - The Impact of Evolutionary Thought on the Social Sciences
Lecture 23 - The Logic of Science
Lecture 24 - Climate and the Distribution of Life on Earth
Lecture 25 - Interactions with the Physical Environment
Lecture 26 - Population Growth: Density Effects
Lecture 27 - Interspecific Competition
Lecture 28 - Ecological Communities
Lecture 29 - Island Biogeography and Invasive Species
Lecture 30 - Energy and Matter in Ecosystems
Lecture 31 - Why So Many Species? The Factors Affecting Biodiversity
Lecture 32 - Economic Decisions for the Foraging Individual
Lecture 33 - Evolutionary Game Theory: Fighting and Contests
Lecture 34 - Mating Systems and Parental Care
Lecture 35 - Alternative Breeding Strategies
Lecture 36 - Selfishness and Altruism