Date of Award
1-1-2019
Document Type
Masters Thesis
Degree Name
M.S.
Organizational Unit
Biological Sciences
First Advisor
Shannon M. Murphy, Ph.D.
Second Advisor
Robin Tinghitella
Third Advisor
Erica Larson, Ph.D.
Fourth Advisor
Angela Smilanich, Ph.D.
Keywords
Aging, Immunocompetency, Maternal age, Maternal effects, Offspring fitness, Parental effects
Abstract
Parental age can affect offspring fitness across taxa and through various mechanisms. However, the effect(s) of advanced maternal age on offspring, particularly in insects, has not been comprehensively reviewed making it difficult to draw conclusions about the effects of advanced maternal age on offspring in insects. In my first chapter, I reviewed maternal age literature and found overall negative effects of advanced maternal age on offspring fitness. However, results vary depending on which fitness measures were used, the life stages at which offspring were measured, and the experimental design of the study. In my second chapter, I conducted an experiment where I collected a suite of fitness measures, including immune response, which is often overlooked, and found that advanced maternal age has an overall positive effect on offspring fitness. My work highlights the importance of following offspring throughout all life stages and implementing various fitness measures, including immune function.
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Claudia Jean Hallagan
Provenance
Received from ProQuest
File Format
application/pdf
Language
en
File Size
79 p.
Recommended Citation
Hallagan, Claudia Jean, "Qualitative and Quantitative Fitness Consequences of Advanced Maternal Age" (2019). Electronic Theses and Dissertations. 1582.
https://digitalcommons.du.edu/etd/1582
Copyright date
2019
Discipline
Aging, Evolution & development, Ecology