Marine intertidal invertebrates are likely to be especially vulnerable to global warming as their physiology, behavior, and demography are all critically inf1uenced by local extreme environmental temperatures. I used the owl limpet, Lottia gigantea, as a model organism to identify the physiological consequences of thermal stress on key demographic parameters. Growth and survival were reduced in response to heat stress in the field but the performance decrement was smaller for limpets with access to more food compared to individuals with access to less. Individual protein expression profiles differed as a function of temperature stress suggesting that limpets were responding to stress by preferentially synthesizing a variety of different proteins as part of the so-called "heat shock response." My results highlight the importance of considering not just one factor in isolation, but rather the potentially complex interactions among multiple environmental drivers of organismal performance.
|Advisor:||Allen, Bengt J.|
|Commitee:||Allen, Bengt J., Kelley, Kevin M., Pernet, Bruno|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 51/04M(E), Masters Abstracts International|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be