D. Dudley Williams 


Professor of Ecology
Professor of Environmental Science
University of Toronto at Scarborough

Honorary Professor, University of Wales, Bangor, U.K.

  • D.Sc. University of Wales
  • Ph.D. University of Waterloo
  • M.Sc. University of Waterloo
  • Dip.Ed. University of Liverpool
  • B.Sc. University of Wales

Research Area: Ecological Studies of Running Water Communities

Environmental heterogeneity and its effect on species richness and abundance is currently a focal point of research in ecology, and nowhere is spatial-temporal variation greater than in rivers and streams. The communities of invertebrates, that have evolved in concert with the unique patterns of physico-chemical variability typical of these habitats, exhibit a range of traits that is most useful in testing modern ecological paradigms. The overall, longterm objective of my research programme is to understand the ecological processes that control the distribution, formation, structure and dynamics of running water communities. Because control is believed to act hierarchically, we carry out research at the levels of community, population and individual. Emphasis is currently directed towards studies of freshwater springs, estuaries, tropical rivers, temporary streams, and the hyporheic zone.






Current Research Group:

Ph.D. Students: Catherine Febria, Julie Helson, Tiffany Schriever

M.Sc. Students: Sarah Mackay, Jessica Wong

Postdoctoral Fellow: Dr. Guillaume Tixier

Research Collaborators: Professor Roberta Fulthorpe,  Professor Ken Howard 

Research Associates: Dr. Richard Storey, Dr. Oksana Andrushchyshyn, Dr. Dani Boix Masafret

Undergraduate Research Students: various

Freshwater Ecology Lab
Complete Publications List

Created: July 28 2000
Last modified: June 2, 2006