Student Research

Dora Cohen

600 cohen1 c468d6c82fa037719e0426611625c0fa67320c2921a0282119480219cbf1f7da

PhD Candidate

Research focus:

Disturbance regimes and microbial ecology

Advisors:

Dr. Angela Kent, Natural Resources and Environmental Sciences
dbcohen3@illinois.edu

Microbes play key roles in many biogeochemical cycles, thus there is a critical need to understand processes that create and maintain microbial diversity. I am investigating the effect of altered disturbance regimes on the structure and function of floodplain soil communities. Floodplains offer an ideal ecosystem in which to study how disturbance shapes microbial communities, as they present microbial communities with a gradient of disturbance. In addition, floodplain microbial communities carry out important ecosystem services that affect water quality and greenhouse gas production. As global change will impact precipitation and flood regimes in floodplain habitats, the typical pattern of disturbance experienced by soil microbes will be altered, with unknown consequences for nutrient cycling functions and GHG production.

Photos below are of purple photosynthetic bacterial colonies on plates (non-sulfur bacteria Rhodopseudomonas palustris) that I was culturing.

Cohen2 b829517be856cd3a69938bd126b2836505999878119ce58ec85bf85d544c984e

Cohen3 f232ded495c3ec9daf195c18ea6758f9be39216da3c3b4da85ecde172adb30fd

 



See Other Students