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Final Thesis_Guo.pdf (1.4 MB)
ETD Abstract Container
Abstract Header
Predator-Induced Changes of the Green Frog (
Rana clamitans
)'s Diet Preference
Author Info
Guo, Mengyu
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=case1462821897
Abstract Details
Year and Degree
2016, Master of Sciences, Case Western Reserve University, Biology.
Abstract
Phenotypic plasticity occurs when organisms change their behavior, morphology and life history in response to environmental variation. This study aims to answer three questions: 1.how do diets with different protein content influence green frog tadpoles’ body mass; 2. how does the presence and absence of predators affect tadpoles’ diet preference; 3. how do predators affect growth and survivorship of tadpoles. In experiment I, tadpoles were exposed to three food treatments to measure the amount of food consumed, diet preference, growth, and survivorship. In experiment II, tadpoles were exposed to predator cues to compare the amount of food consumed, diet preference, growth, and survivorship in presence and absence of predators. Green frog tadpoles responded to predation risk by reducing the amount of food consumed, reducing growth, and decreasing survivorship. We found that tadpoles preferred high protein food in the absence of predator and lowered total consumption of protein food when exposed to predator.
Committee
Michael Benard (Advisor)
Pages
32 p.
Subject Headings
Animal Sciences
;
Behaviorial Sciences
;
Ecology
Keywords
Predator effects, Diet preference, Green frog
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Citations
Guo, M. (2016).
Predator-Induced Changes of the Green Frog (
Rana clamitans
)'s Diet Preference
[Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1462821897
APA Style (7th edition)
Guo, Mengyu.
Predator-Induced Changes of the Green Frog (
Rana clamitans
)'s Diet Preference.
2016. Case Western Reserve University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=case1462821897.
MLA Style (8th edition)
Guo, Mengyu. "Predator-Induced Changes of the Green Frog (
Rana clamitans
)'s Diet Preference." Master's thesis, Case Western Reserve University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1462821897
Chicago Manual of Style (17th edition)
Abstract Footer
Document number:
case1462821897
Download Count:
349
Copyright Info
© 2016, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.