Testing Hypotheses on Plant-herbivore Interactions Using Sawfly Galls on Willows
In this experiment, students observe sawfly galls (Hymenoptera) on willow (Salix) trees to investigate some of the ecological consequences of plant-herbivore relationships. The physical and chemical traits of plants vary due to genes and environmental factors, such as soil moisture, nutrient levels, exposure to pathogens, and exposure to herbivores. These traits can lead to differences in susceptibility to herbivores. Therefore, one might expect to find differences among plants in the number of herbivores that feed on them, the ways herbivores select feeding and oviposition sites, and the feeding success of these herbivores.
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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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| Life science discipline (subject) | |
| Keywords | TIEE; pedagogy; student active; inquiry based |
| Key taxa | Pacific willow; Salix lasiandra; Hymenoptera; Pontania; sawfly |
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| Pedagogical Use Category | |
| Pedagogical Use Description | This Experiment can be used to teach students about interactions between plants and herbivores using an herbivore species that is relatively easy to find and identify in the field. The activity provides the general framework for a field experiment with one hypothesis tested by the class and a second hypothesis determined by students groups. The experiment is an adaptable opportunity to teach about some of the factors influencing plant traits and plant-herbivore interactions while giving students some experience designing their own experiment, all within the specific context of a local ecosystem. |
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| Url | http://tiee.esa.org/vol/v3/experiments/sawfly/abstract.html |
| Full Name of Primary Author | Kristina Ernest |
| Primary Author Controlled Name | |
| Primary Author Affiliation | Central Washington University, Dept. of Biological Sciences |
| Primary Author email | ernestk@cwu.edu |
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| Rights | Copyright 2005 by Kristina A. Ernest and the Ecological Society of America. |
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| 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 | 2007-11-01 |
| I Agree to EcoEdDL's Copyright Policy & Terms of Use | No |
| Date Of Record Release | 2010-02-16 01:26:39 |
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| Date Last Modified | 2018-07-25 09:18:43 |
| Release Flag | Published |
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