Reproductive Isolation in Columbines
Department of Biology and Department of Microbiology & Plant Biology
University of Oklahoma
This clicker case uses plant-pollinator interactions in columbines as a biological scenario to teach students about evolution, reproductive isolation, and angiosperm reproduction. The case is based on an approach to evolution education called tree-thinking that emphasizes the construction, interpretation, and evaluation of phylogenetic trees as an approach to addressing biological and evolutionary questions. It also presents basic concepts of structure-function relationships in flowers and how this influences behavior and effectiveness of different pollinators. Designed for use in a large introductory level class, the case could also be used in smaller classes and in upper-level courses. It is appropriate for use in units on evolution, floral biology, or multispecies interactions.
- Describe how phylogenetic trees represent hypotheses about relationships among species that can be used to address evolutionary questions.
- Understand how species represent different lineages that have diverged from a common ancestor.
- Explain how floral features influence pollinator behavior and shape reproductive isolation in plants.
KeywordsPlants; flowers; columbines; Aquilegia pubescens; Aquilegia formosa; species concepts; tree-thinking; pollinators; pollination; mutualism
Educational LevelUndergraduate lower division, Undergraduate upper division
Type / MethodsClicker, Interrupted
Subject HeadingsBiology (General) | Evolutionary Biology | Botany / Plant Science | Ecology |