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In this exercise, students first work in small groups to collect background information on what mosquitofish and bullfrogs consume and then modify a food web based on that knowledge. Students then develop hypotheses of how these two invasive species may affect native amphibian species, snails, and zooplankton. Following, students work individually to analyze experimental mesocosm data to determine the effects of the two invasive species on native aquatic taxa (amphibians, snails, zooplankton, and phytoplankton). Afterwards, students discuss their findings and modify their food web based on the results.
Associated files
Resource Group TIEE
Resource Group Link
Primary or BEN resource type
Secondary resource type
General Biology Core Concepts
Discipline Specific Core Concepts
General Biology Competencies
Life science discipline (subject)
Keywords Invasion ecology, wetland communities, amphibian decline, trophic cascades,Computer-based projects, calculation, problem-based learning, cooperative learning, critical thinking
Intended End User Role
Educational Language
Pedagogical Use Category
Pedagogical Use Description Hypotheses formation: Develop testable hypotheses and create a conceptual diagram
Data management and analysis: Summarize data in excel or a relational database to create tables and graphs
Data visualization: Create figures to visually represent the data
Data interpretation: Interpret results and draw a hypothesized food web based on the data
Collaboration: Effectively collaborate with classmates to develop hypotheses and interpret findings
Aggregation Level
Full Name of Primary Author Miranda D. Redmond
Primary Author Controlled Name
Primary Author Affiliation Department of Ecology and Evolutionary Biology, University of Colorado
Primary Author email
Secondary Author Name(s) Daniel L. Preston
Secondary Author Affiliation(s) Department of Ecology and Evolutionary Biology, University of Colorado
Added By Id
  • eduintern
Rights Authors hold the copyright
Review type
Drought and Water Ecosystem Services Collection Off
Conservation Targets Under Global Change Collection Off
Big Data Collection Off
Editors Choice No
Resource Status
Date Of Record Submission 2014-10-08
I Agree to EcoEdDL's Copyright Policy & Terms of Use No
Date Of Record Release 2014-08-27 07:14:58
Last Modified By Id
  • educationintern
Date Last Modified 2018-07-30 11:17:30
Release Flag Published

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