McCauley, Ed - University of Calgary - Department of Biological Sciences

个人简介

PhD McGill University, 1983 MSc University of Ottawa, 1978 BSc University of Ottawa, 1976 2007 - Tier1 Canada Research Chair, University of Calgary (renewed) 2007 - Discover Accelerator Award, NSERC 2008 - Elected Fellow of the Royal Society of Canada 2008 - Award of Excellence for Service, Faculty of Science 2005 - Award of Excellence for Research, Faculty of Science 2000 - Award of Excellence for Teaching, Faculty of Science

研究领域

Natural populations display an extraordinary range of dynamics in complex ecological communities and ecosystems. Understanding the mechanisms giving rise to these dynamics and how they change as we modify environments, or as we move from one environment to another are challenging problems. Since ecological systems contain many non-linear interactions and feedback mechanisms, there are three key questions that we must answer concerning the dynamics of biological populations: 1) what are the sources of instability causing the propensity to fluctuate? 2) what are the mechanisms arresting the growth of these fluctuations over time or space? and 3) what are the implications of these fluctuations for the dynamics of other species in the community? My long-term research objectives are (1) to discover the answers to these three important questions using aquatic plant-herbivore systems as exemplars, and (2) to develop conceptual approaches that we can use to evaluate general mechanisms governing dynamics in non-linear, complex ecological systems. I am also interested in how theory from population ecology can be used in environmental science. We use these ideas to solve applied problems related to population dynamics, resource-consumer interactions, and dynamics of biological communities in a variety of aquatic systems ranging from lakes and reservoirs to streams and rivers. Through the use of structured population models and individual-based models, we’ve been examining how energy allocation, allometry, movement patterns, and spatial interactions affect dynamics of predator-prey systems. These models enable us to examine how biological systems respond to climate change or changes in major environmental variables, such as temperature or nutrient enrichment.

近期论文

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Cressler, C., W.A. Nelson, T. Day and E.McCauley. 2014. Disentangling the interaction among host resources, the immune system, and pathogens. Ecology Letters 17 :284–293. Stevenson LM, Dickson J, Klanjscek T, Keller A, Nisbet, R. and E. McCauley. 2013. Environmental feedbacks and engineered nanoparticles: Mitigation of silver nanoparticle toxicity to Chlamydomonas reinhardtii by algal-produced organic compounds. PLos ONE 8(9): e74456. Doi:10.1371/journal.pone.0074456 Casas, J. and E. McCauley. 2012. Daily foraging cycles create overlapping time-scales in functional responses. Oikos 121: 1966–1976 Lutscher, F. and E. McCauley. 2012. A probabilistic framework for nutrient uptake length. Theoretical Ecology. 6: 71-86. Ananthasubramaniam, B., R. M. Nisbet, W. A. Nelson, E. McCauley, and W.S.C. Gurney. 2011. Stochastic growth reduces population fluctuations in Daphnia-algal systems. Ecology 92: 362-372. Börger, L., J. Matthiopoulos, R. Holdo, J. M. Morales, I. Couzin, and E. McCauley. 2011. Migration quantified: Constructing models and linking them with data. Chapter 11 in 'Animal Migration', edited by John Fryxell, E.J. Milner-Gulland, and Tony Sinclair. Oxford University Press. Nisbet, R.M., E. McCauley, and L.R. Johnson. 2010. Dynamic Energy Budget theory and ecology: lessons from Daphnia. Philosophical Transactions of the Royal Society B 365: 3541-3562. Fox, J. W., W. A. Nelson, and E. McCauley. 2010. Coexistence mechanisms and the paradox of the plankton: quantifying selection from noisy data. Ecology 91(6): 1774-1786. Flanagan, K.M. and E. McCauley. 2010. Experimental warming increases CO2 saturation in a shallow prairie pond. Aquatic Ecology 44: 749-759. Watson, S.B. and E. McCauley. 2010. Light and bacteria: substitutable energy sources for chrysophyte blooms? Nova Hedwigia 136: 213-230. Bailey, S.F. and E. McCauley. 2009. Extrinsically and intrinsically generated spatial patterns of algal abundance in an experimental stream. Ecological Complexity 6:328–336. Kirkwood A.E., L.J. Jackson and E. McCauley. 2009. An analysis of the environmental threshold conditions required in the distribution and bloom development of Didymosphenia geminata. Freshwater Biology 54: 1856-1863. Romanuk T.N., B.E. Beisner, A. Hayward, L.J. Jackson, J.R. Post and E. McCauley. 2009. Processes governing riverine fish species richness are scale-independent. Community Ecology 10: 17-24. McCauley, E., W. Nelson, and R. Nisbet. 2008. Small-amplitude cycles emerge from stage-structured interactions in Daphnia- algal systems. Nature 455: 1240-1243. Anderson K.E., R.M. Nisbet, and E. McCauley. 2008. Transient responses to spatial perturbations in advective systems. Bulletin of Mathematical Biology Simpson, K., E. McCauley and W. Nelson. 2008. Spatial heterogeneity and rates of spread in experimental streams. Oikos 117: 1491-1499. Flanagan, K. and E. McCauley. 2008. Warming and depth interact to affect carbon dioxide concentration in aquatic mesocosms. Freshwater Biology 53: 669–680. Sterner, R.W., Andersen, T., Elser, J.J., 3, Hessen, D.O., Hood, J., McCauley, E. & J. Urabe. 2008. Scale-dependent carbon:nitrogen:phosphorus seston stoichiometry in marine and freshwaters.Limnology and Oceanography 53:1169-1180. Benoy, G., K. Cash, L. Levesque, E. McCauley and F. Wrona. 2008. Antecedent snow conditions affect water levels and plant biomass of a fen in the southern boreal forest: Results from an experiment using mesocosms. Environmental Reviews 15:175-189.