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Maintenance of Phenotypic Polymorphism and a Scientist Spotlight Featuring Dr. Swanne Gordon

Author(s): Robert E Furrow

University of California, Davis

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In this lesson students interpret graphical evidence of frequency-dependent selection in the wood tiger moth, then make long-term evolutionary predictions. They then read and reflect on an interview with researcher Dr. Swanne Gordon.

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Version 1.0 - published on 08 Jul 2021 doi:10.25334/XW84-CZ53 - cite this


Instructor Guide and Homework Handout for a brief lesson on frequency-dependent selection, combined with a Scientist Spotlight of Dr. Swanne Gordon.

Course Information

Designed for a lower division general biology lecture course that may be be online or live and has 1000+ students.

Quantitative learning objective

  1. Interpret bar plots representing data on evolutionary fitness in multiple experimental populations
  2. Reconcile data on single-generation fitness with long-term predictions about a population’s evolution

Content learning objective

  1. Use data to identify the type(s) of selection that might be occurring in a natural system.
  2. Contrast different types of data that can be gathered in an experimental evolution study

Social justice learning objectives

  1. Increase students’ potential vision of future self as a scientist
  2. Increase students’ relatability to scientists

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