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Plasticity of Growth Rate in the High-Back Pygmy Swordtail, Xiphophorus multilineatus, in Response to Social Context and Maternal Effects

Murphy, Alexander D.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1338561146

Abstract Details

2012, Master of Science (MS), Ohio University, Environmental Studies (Arts and Sciences).
Growth rate, which is influenced by genetics and environmental stimuli, is an important factor in determining when and at what body size animals reach sexual maturity. Examining mechanisms that produce variation in growth rate make it possible to determine the extent to which variation in growth rate may be adaptive. Offspring of Xiphophorus multilineatus females raised on high and low quality diets were measured at five points in ontogeny: exposure to large courter males and sexual maturity, to determine growth rate differences between treatment type and maternal diet. Before exposure, mother size, juvenile size at 14 days, and juvenile sex influenced growth rate. After exposure, the interactive effect of maternal diet, treatment type, and offspring sex was responsible for differences in growth rate. My results suggest that small mothers may invest more in male offspring, and that both maternal effects and social environment may influence growth rate to sexual maturity.
Molly Morris, PhD (Advisor)
Donald Miles, PhD (Committee Member)
Nancy Manring, PhD (Committee Member)
55 p.
Biology
growth rate; plasticity; maternal effects; social context; Xiphophorus

Recommended Citations

Citations

  • Murphy, A. D. (2012). Plasticity of Growth Rate in the High-Back Pygmy Swordtail, Xiphophorus multilineatus, in Response to Social Context and Maternal Effects [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1338561146

    APA Style (7th edition)

  • Murphy, Alexander. Plasticity of Growth Rate in the High-Back Pygmy Swordtail, Xiphophorus multilineatus, in Response to Social Context and Maternal Effects. 2012. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1338561146.

    MLA Style (8th edition)

  • Murphy, Alexander. "Plasticity of Growth Rate in the High-Back Pygmy Swordtail, Xiphophorus multilineatus, in Response to Social Context and Maternal Effects." Master's thesis, Ohio University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1338561146

    Chicago Manual of Style (17th edition)

ohiou1338561146
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© 2012, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.