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In this activity, students conduct an experiment to test a hypothesis about how freshwater snails detect and avoid fish predators using chemical cues and habitat complexity. Students generate a hypothesis, run the experiment, collect data, analyze data, and interpret their results. Instructions are also provided for further thought and discussion on the implications of the students' findings and of predator-prey interactions in general.
Associated files
Format
Resource Group TIEE
Resource Group Link https://ecoed.esa.org/index.php?P=SearchResults&F46=TIEE
Primary or BEN resource type
Discipline Specific Core Concepts
Life science discipline (subject)
Keywords predator, prey, predator-prey dynamics, habitat complexity, predator avoidance, animal behavior, refuge, cue, chemical cue, kaiomone, communication, freshwater, aquatic, non-lethal effect
Key taxa snail, Physa acuta, Physidae, redear sunfish, pumpkinseed sunfish, Lepomis microlophus, Lepomis gibbosus
Audience
Intended End User Role
Language
Educational Language
Pedagogical Use Category
Pedagogical Use Description Teachers can use this activity to teach about predator-prey interactions in complex habitats. It can also provide specific context for broader lessons on predator-prey dynamics, population persistence, and direct and indirect species interactions in ecosystems. Students use the scientific method in a controlled lab experiment that is open-ended and involves them in experiment design as well as data collection. Suggestions for assessment of student learning outcomes are also provided. The methods can be adapted for different scales and locations.
Aggregation Level
Structure
Url http://tiee.esa.org/vol/v4/experiments/habitat_shifts/abstract.html
Full Name of Primary Author Timothy Stewart
Primary Author Controlled Name
Primary Author Affiliation Department of Natural Resource Ecology, Iowa State University
Primary Author email twstewar@iastate.edu
Added By Id
  • educationintern
Rights Author retains copyright
License
Publisher
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 1999-11-30
I Agree to EcoEdDL's Copyright Policy & Terms of Use No
Date Of Record Release 2010-02-16 01:48:03
Last Modified By Id
  • educationintern
Date Last Modified 2018-07-25 09:42:42
Release Flag Published

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