Job Title: Assistant Professor
Employer: Department of Biology, University of Waterloo
Place of Birth: Beckenham, Kent, England
Public School attended: Acadia Junior High School, Winnipeg
High School attended: Vincent Massey High School, Winnipeg
Further Education: Queen's University (B.Sc., Ph.D.)
Geographic focus of research: Ontario, Saskatchewan, British Columbia, Sweden, Denmark, Norway
Brief synopsis of current research:
My research combines fields of aquatic ecology, paleoecology and multivariate statistics to assess effects of multiple stressors (nutrients, acidification, climate change, species invasions) on lakes and reservoirs. A focus is to quantify and predict ecosystem responses during degradation and recovery phases due to human disturbances and natural phenomena. Projects assess effects of: 1) acid rain, climatic variability (drought) and eutrophication on Ontario lakes; 2) multiple stressors (urban pollution, agriculture, climate) in Saskatchewan; and, 3) climatic changes in subarctic Sweden (68oN latitude).
Dept. of Biology, University of Waterloo, Waterloo, ON, N2L 3G1
HALL, R.I., P.R. Leavitt, A. S. Dixit, R. Quinlan and J.P. Smol. 1999. Effects of agriculture, urbanization and climate on water quality in the northern Great Plains. Limnology & Oceanography 44(3, part 2): 739-756.
Leavitt, P.R., D.L. Findlay, R.I. HALL, D.W. Schindler and J.P. Smol. 1999. Algal response to dissolved organic carbon loss and pH decline during whole-lake acidification: Evidence from paleolimnology. Limnology & Oceanography 44(3, part 2): 757-773.
HALL, R.I., P.R. Leavitt, A.S. Dixit, R. Quinlan and J.P. Smol. 1999. Limnological succession in reservoirs: A paleolimnological comparison of two methods of reservoir formation. Canadian Journal of Fisheries and Aquatic Sciences 56:1109-1121.
HALL, R.I. and N.D. Yan. 1997. Comparing annual population growth estimates of the exotic invader Bythotrephes by using sediment and plankton records. Limnology & Oceanography 42:112-120.
HALL, R.I. and J.P. Smol. 1996. Paleolimnological assessment of long-term water-quality changes in south-central Ontario lakes affected by cottage development and acidification. Canadian Journal of Fisheries and Aquatic Sciences 53: 1-17.
Understanding and predicting effects of multiple stressors has become one of the most important challenges facing ecologists, in part because conventional techniques and single stressor studies are usually inadequate for the complexity of the task. To address this challenge, we must recruit bright young aquatic ecologists who can combine field-based experiments, innovative analyses of lake-sediments and lake-surveys to quantify unique and cumulative effects of multiple interacting stressors (e.g., climatic variability, acid deposition, stratospheric ozone depletion, nutrient enrichment) on aquatic communities in potentially sensitive ecosystems.