Microbial Ecology

2015-01-27 — 2015-01-28

Wherein the Planetary-Scale Microbiome Is Described as Being Treated Like an Economy, Its Rampant Horizontal Gene Transfer and Potential Climate-Feedbacks Are Analysed Through Economic Methods.

adaptive
ecology
gene
life

As seen in human commensal microbiomes.

Microbiomes. Hyperdiversity.

1 Why not microbial economy?

These little single-celled monsters are suggestively human in their interactions; with profligate horizontal gene transfer, hyperdiversity, and incredibly short generation times, they look, if you squint, more like a human economy than a Lotka-Volterra system.

No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man’s and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinised and studied, perhaps almost as narrowly as a man with a microscope might scrutinise the transient creatures that swarm and multiply in a drop of water.

With infinite complacency men went to and fro over this globe about their little affairs, serene in their assurance of their empire over matter. It is possible that the infusoria under the microscope do the same.

2 Software

Mothur.

3 Incoming

  • environmental implications of the mostly-unobserved large-scale microbiome (geoengineering! horrible climate feedbacks!)

4 References

Brockhurst, Buckling, and Gardner. 2007. “Cooperation Peaks at Intermediate Disturbance.” Current Biology.
Cordero, Ventouras, DeLong, et al. 2012. Public Good Dynamics Drive Evolution of Iron Acquisition Strategies in Natural Bacterioplankton Populations.” Proceedings of the National Academy of Sciences.
Cordero, Wildschutte, Kirkup, et al. 2012. Ecological Populations of Bacteria Act as Socially Cohesive Units of Antibiotic Production and Resistance.” Science.
Heck, Belle, and Simberloff. 1975. Explicit Calculation of the Rarefaction Diversity Measurement and the Determination of Sufficient Sample Size.” Ecology.
Kraemer, and Velicer. 2014. Social Complementation and Growth Advantages Promote Socially Defective Bacterial Isolates.” Proceedings of the Royal Society of London B: Biological Sciences.
Oliveira, Niehus, and Foster. 2014. Evolutionary Limits to Cooperation in Microbial Communities.” Proceedings of the National Academy of Sciences.