Lyndsie Collis

Master's Student
Graduate Student

Research Interests: Aquatic Ecosystem Ecology, Nutrient Cycling, Plankton Ecology

Project Title: Interactive Effects of Temperature and Nutrients on Stream Ecosystem Processes

Project Description: Climate change and eutrophication are primary drivers of change in aquatic ecosystems, altering community structure, rates of ecosystem processes, and the flux of energy and nutrients. My research aims to characterize how nutrient availability influences key functional groups in primary producer assemblages, and assess the implications for ecosystem response to warming.

To examine this, we conducted a series of stream-side channel experiments in southwestern Iceland in which we manipulated temperature and nitrogen (N) and phosphorus (P) supply. We measured biofilm gross primary production, nutrient assimilation, and quantified biofilm assemblage and stoichiometry to link biofilm structure to apparent ecosystem processes. This research furthers our understanding of the complex interactions between temperature and nutrients in aquatic systems, and will strengthen our predictions of ecosystem response to future anthropogenic stressors.

Advisor: Dr. James Hood

  • M.S. The Ohio State University (in progress)
  • B.S. Science of Natural and Environmental Systems - Cornell University