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Entry #121
AES Student Submission form
Submitted: 2025-05-09 22:17:24
Form Fields
Duplicate
Admin Only
ID: 39
Faculty and/or Staff Mentor(s)
- All student submissions for presentations at AES must have the approval of a WOU faculty or staff mentor. To learn more about this requirement please visit http://wou.edu/pure/academicexcellenceshowcase/students/. The identified and approving mentor(s) will be automatically notified upon completion of this form.
- If you do not have a mentor's approval, please discuss your presentation ideas and proposal abstract with a faculty or staff member and ask them for their approval and sponsorship before completing this form.
- You must have approval BEFORE submitting or your presentation may not be included in AES.
Mentor Email
ID: 30
Mentor Name
ID: 29
First: Gareth
Last: Hopkins
Do you have more than one mentor who should be listed for this submission?
ID: 32
No
Has your faculty or staff mentor reviewed your proposal and approved it for submission?
ID: 3
Yes: Yes
Presenters
ID: 4
| WOU Email | First Name | Last Name | vNumber | Major | Year (Senior, Junior, etc.) | Home Town |
|---|---|---|---|---|---|---|
| state19@mail.wou.edu | Sophia | Tate | V00373778 | Biology | 5th year | Roseburg |
What type of session are you participating in?
ID: 6
Poster
Select the session topic(s) that best match your poster
ID: 13
- Biology and GIS Poster Session
Title of your presentation/poster/performance
ID: 7
Diet of Invasive American Bullfrogs (Lithobates catesbeaianus) in the Willamette Valley of Oregon: Opportunistic or Selective Predators?
Are there any accompanists or composers that should be recognized in the program?
ID: 14
Yes
Individuals to be recognized
ID: 36
| Role | First Name | Last Name |
|---|---|---|
| Advisor/mentor | Gareth | Hopkins |
| Supervisor/Project Coordinator | Susan | Barnes |
Did your project involve Human Subjects?
ID: 15
No
Abstract or image files
ID: 17
I will add an abstract now
Abstract
ID: 21
American Bullfrogs (Lithobates catesbeaianus) are invasive in Oregon, and are thought to cause considerable ecological damage through their large size and indiscriminate feeding on native wildlife in the state. However, an in-depth examination of bullfrog diet in the state has yet to be completed. It is also unclear if bullfrogs opportunistically eat any prey available to them, or are more selective predators. To fill these knowledge gaps, we quantified the stomach contents of bullfrogs at a heavily-populated pond that were collected by the Oregon Department of Fish and Wildlife, and compared stomach contents to aquatic invertebrate availability at the same pond. Bullfrogs ate 16 different prey items, including small mammals, snakes, other amphibians, and 12 different types of aquatic invertebrates. Odonata, the most abundant invertebrate order found in the environment, was notably underrepresented in frog stomach contents. Similar underrepresentation was found for Coleoptera and Gastropoda, while Hemiptera appeared slightly overrepresented. These findings indicate that bullfrogs may show selective feeding behavior on invertebrates, and may not be the opportunistic feeders previously assumed. While the impact of bullfrogs on native wildlife is clearly significant, our results complicate the view of bullfrogs as indiscriminate feeders and highlight the importance of continued research into their impacts within fragmented wetland ecosystems.
Abstract Approved
Hidden
ID: 37
Yes
Do you give us permission to publish your work online in partnership with Hamersly Library?
ID: 16
Yes
Would you be interested in submitting your work to PURE Insights?
ID: 24
Yes
Model release statement
ID: 18
Yes
Are you willing to allow WOU to make a video recording of your session?
ID: 23
Yes
Name
Hidden
ID: 33
First: Sophia
Last: Tate
vNumber
Hidden
ID: 34
V00373778
Email
Hidden
ID: 35
state19@wou.edu
