SYMP 20-7 - Mathematical models and experiments on the genetic basis of productivity-diversity relationships in host-pathogen interactions

Thursday, August 6, 2009: 4:20 PM
Blrm B, Albuquerque Convention Center
Robert Beardmore1, Sinan Arkin2, Samantha Forde3 and Ivana Gudelj2, (1)Mathematics, Imperial College London, England, (2)Mathematics, Imperial College London, London, England, (3)Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA
Background/Question/Methods

In the first part of the talk I revisits the problem of diversity on a single, limiting
resource in the chemostat. In particular, we ask what is
the minimal metabolic complexity a replicator must
have in order to observe long-term diversity in a homogeneous
environment?

Bacterial model systems have been used over the last
two decades or so to test ecological and evolutionary theory.
Here we ask, using an experimental system of obligately lytic
T3 phage and the microbe E.coli B in the chemostat,
when altering the supply of abiotic resource, are experimentally-observed changes in diversity
typical or atypical within the class of all possible
spatially homogeneous host-pathogen interactions?
Results/Conclusions

We finish the talk by explaining why, as resource availability changes, there is a sense in which there is no universal form for the bacteria and phage diversity relationship;

we conclude that this concept lacks generalisibility.

Copyright © . All rights reserved.
Banner photo by Flickr user greg westfall.