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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Thesis Advisor: Joshua Weitz
Committee members:
- Joshua Weitz, Biology and Physics
- Kurt Weisenfeld, Physics
- Simon Sponberg, Physics
- Sam Brown, Biology
- Justin Romberg, ECE
Abstract:
Bacteria and their viral parasites, i.e., phages, are found in natural environments from oceans, soils to the human gut. Phages are key players in ecosystems responsible for a significant portion of microbial mortality. Individual phages can infect a subset of bacteria types in a community as part of complex infection networks. In this thesis we study the interplay between infection networks, life-history traits, and the resulting dynamics in systems with multiple host and phage types. First, we study the trade-off necessary for the coexistence of multiple hosts and phages in systems with statistically realistic infection networks. Second, we study how the trends of network architecture vs. biodiversity depend on life-history traits. Finally, we put forward a method for reconstructing infection networks using measurements of the densities from the dynamics.
