Of wolves, elk and willows: how predation structures ecosystems
Predator-prey interactions are among the most familiar and important in ecology, and they are also fraught with common misconceptions for students and the lay public. The notion of potential indirect impacts of predator on prey has not occurred to most students, nor has the idea of trophic cascades. This Issue uses the example of wolf extirpation and restoration in the Greater Yellowstone region to address the nature of trophic interactions, both direct and indirect.
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| Format | |
| Resource Group | TIEE |
| Resource Group Link | https://ecoed.esa.org/index.php?P=SearchResults&F46=TIEE |
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| Discipline Specific Core Concepts | |
| Life science discipline (subject) | |
| Keywords | predation, trophic cascades, keystone species, predator control, predation risk, prey behavior, TIEE, Yellowstone, wolves, elk, willows |
| Audience | |
| Intended End User Role | |
| Language | |
| Educational Language | |
| Pedagogical Use Category | |
| Pedagogical Use Description | In this issue, students will study figures and generate hypotheses about why woody vegetation recruitment declined in Yellowstone National Park. Then, through a progressive disclosure approach, they will be shown data to help refute or support various hypotheses and finally construct a detailed food web concept map showing various trophic level interactions in the Yellowstone ecosystem, allowing them to see first hand how trophic cascades can structure ecosystems. |
| Aggregation Level | |
| Structure | |
| Url | http://tiee.esa.org/vol/v6/figure_sets/trophic_cascades/abstract.html |
| Full Name of Primary Author | Cynthia Dott |
| Primary Author Controlled Name | |
| Primary Author Affiliation | Fort Lewis College |
| Primary Author email | N/A |
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| 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 | 2009-01-01 |
| I Agree to EcoEdDL's Copyright Policy & Terms of Use | No |
| Date Of Record Release | 2011-03-09 12:17:47 |
| Last Modified By Id |
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| Date Last Modified | 2018-07-25 15:45:26 |
| Release Flag | Published |
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