Nicola Lewis

PhD Research Student

Marine Ecology & Mathematical Biology




Nicola Lewis


Department of Biological Sciences
University of Essex                          Colchester                                                                                     CO43SQ                                                                                                                     U.K.

room: 4.01

email: ndlewi (at)




I am a mathematical biology PhD student between the departments of Mathematical Sciences and Biological Sciences at the University of Essex.


My research interests include:

  • Mathematical modelling in Biology and Ecology
  • Plankton chemical ecology and trophic interactions
  • Spatial ecology and population dynamics

My research project focuses on the role of the volatile trace gas DMS in mediating interactions between phytoplankton, microzooplankton and copepods, where it is hypothesised that phytoplankton release DMS as a defence mechanism during microzooplankton grazing, which then acts as a chemical cue for the copepods to feed on the microzooplankton. In this project I working on modelling these interactions first using a non-spatial population level model and then extending this to include spatial dynamics and movement behaviour through the use of reaction-diffusion models.



RESearch Information

Current Project


Role of dimethyl sulphide (DMS) in pelagic tritrophic interactions


Dr Michael Steinke

Dr Edward Codling

Dr Stephen Archer



RESEARCH Affiliations










Copyright (c) 2010. Site maintained by Nicola Lewis (ndlewi -at- Plankton images courtesy of Glynn Gorick