OOS 17 - Microbes in Modernity: Microbial Responses to Anthropogenic Change

Tuesday, August 8, 2017: 1:30 PM-5:00 PM
Portland Blrm 258, Oregon Convention Center
Aspen T. Reese, Duke University
Aspen T. Reese, Duke University
Microbes are the foundation of all ecosystems, where they drive both evolution and ecology. Microbial communities are critical for terrestrial, aquatic, and marine ecosystem functioning with myriad impacts on such diverse processes as nutrient cycling, primary production, and soil formation. Similarly, in host-associated systems, microbes aid in host nutrient and waste processing, pathogen resistance, and immune regulation. Fully understanding the functioning of these abundant and diverse communities requires theory that scales within and between systems. Such theory will be particularly important for predicting how microbial communities behave in the future. Anthropogenic impacts have already significantly shaped microbial communities from altering their environments to creating entirely new habitats (e.g., the built environment). The rapid rate of evolution in microbial populations and the potential for fewer dispersal barriers in particular present opportunities for microbial responses to differ significantly from those of plants and animals. Whether these features are equally important under both press and pulse disturbances or with impacts of varying scales is unknown though. While research into microbial responses to specific drivers is becoming increasingly common, to date, few efforts have been made to consider these patterns in tandem. In this organized session, we will highlight recent efforts to study microbial evolutionary and ecological responses to a variety of human induced changes. Methodological and theoretical overlap between talks will present opportunities to synthesize and identify relevant pre-existing theory as well as identify areas requiring additional future research or new theory. Systems covered will include human- and animal- associated communities as well as aquatic bacteria, soil phage, and office buildings.
1:30 PM
 Metagenomic and transcriptomic evidence suggests Microcystis is dependent on heterotrophic bacteria for mitigation of oxidative stress caused by exogenous hydrogen peroxide
Derek Smith, University of Michigan; Timothy W. Davis, NOAA Great Lakes Environmental Research Laboratory; Michelle A. Berry, University of Michigan; Rose M. Cory, University of Michigan; Vincent J. Denef, University of Michigan; Thomas H. Johengen, University of Michigan; George W. Kling, University of Michigan; Kevin A. Meyer, University of Michigan; Gregory J. Dick, University of Michigan
1:50 PM
 Microbial cage match: Community merging during seawater intrusion
Jennifer D. Rocca, Duke University; Marie Simonin, Duke University; Alex Washburne, Duke University; Justin Wright, Duke University; Emily S. Bernhardt, Duke University
2:10 PM
 Dynamics of microbial diversity and biogeochemical processes in the Chesapeake Bay dead-zone
Sarah Preheim, Johns Hopkins University; Eric Sakowski, Johns Hopkins University; Anand Gnanadesikan, Johns Hopkins University; Christopher Holder, Johns Hopkins University; Keith Arora-Williams, Johns Hopkins University
2:30 PM
 Novel nanopesticides introduce new challenges to microbes in agro-ecosystems and downstream wetlands
Marie Simonin, Duke University; Steve Anderson, Duke University; Christina Bergemann, Duke University; Jennifer D. Rocca, Duke University; Benjamin P. Colman, University of Montana; Emily S. Bernhardt, Duke University
2:50 PM
 Feedbacks between viral and microbial communities in thawing permafrost
Joanne B. Emerson, Ohio State University; Simon Roux, DOE Joint Genome Institute; Jennifer R. Brum, Louisiana State University; Benjamin Bolduc, The Ohio State University; Ben J. Woodcroft, University of Queensland; Ho Bin Jang, The Ohio State University; Caitlin M. Singleton, University of Queensland; Lindsey M Solden, The Ohio State University; Joel A. Boyd, University of Queensland; Suzanne B. Hodgkins, Florida State University; Rachel M. Wilson, Florida State University; Gareth Trubl, The Ohio State University; Kelly Wrighton, The Ohio State University; Patrick M. Crill, Stockholm University; Jeffery P. Chanton, Florida State University; Scott R. Saleska, University of Arizona; Gene W. Tyson, University of Queensland; Virginia Rich, The Ohio State University; Matthew B. Sullivan, The Ohio State University
3:10 PM
3:20 PM
 Spatiotemporal effects of microbial seed banks on community structure
Kenneth J. Locey, Indiana University; Jay T. Lennon, Indiana University; Megan L. Larsen, University of Nebraska-lincoln; Mario E. Muscarella, University of Illinois; Stuart E. Jones, University of Notre Dame
3:40 PM
 Two dynamic regimes in the human gut microbiome
Sean Gibbons, MIT; Sean Kearney, MIT; Chris Smillie, MIT; Eric Alm, MIT
4:20 PM
 Antibiotic resistance and antimicrobial chemicals in the built environment
Erica Hartmann, Northwestern University; Roxana Hickey, University of Oregon; Tiffany Hsu, Harvard T. H. Chan School of Public Health; Jing Chen, Arizona State University; Clarisse M. Betancourt Román, University of Oregon; Adam J. Glawe, Northwestern University; Jeff Kline, University of Oregon; Kevin Van Den Wymelenberg, University of Oregon; G.Z. (Charlie) Brown, University of Oregon; Rolf U. Halden, Arizona State University; Curtis Huttenhower, Harvard T. H. Chan School of Public Health; Jessica L. Green, University of Oregon
4:40 PM
 Friends and foes: The microbial ecology of household water supplies
Noah Fierer, University of Colorado Boulder