Morrissey, Christy

Faculty Member in Toxicology

Christy Morrissey

Current Courses

Current Courses

  • ENVS 806.3 – Field Skills in Environment and Sustainability

  • BIOL 875.3 – Ecotoxicology Theory and Practice

  • BIOL 475.3 - Ecological Toxicology

Other Courses

  •       BIOL 410.3- Current Perspectives in Environmental Biology

  •       BIOL 121.3 – Nature of Life

Current Research

  • Effects of pesticides and land use on farmland and insectivorous birds
  • Understanding fate of neonicotinoid insecticides in wetlands with implications for aquatic insects and birds in agricultural ecosystems, with special interest in the Prairie Pothole Region 
  • Investigating changes in hormone homeostasis in birds exposed to endocrine disruptors and industrial pollutants- effects on learning, cognition and migratory behaviour.
  • Urban stream pollution and river bird health and reproduction
  • Effect of small scale run of the river hydro on river birds and mountain stream ecosystems


  • Main A.R., Michel N.L., Headley J.V., Peru K.M., and Morrissey C.A (in revision). Drivers of neonicotinoid insecticide detections and concentrations in Canada’s Prairie wetlands. Environmental Science and Technology.

  • Zahara, A.R.D., Michel, N.L., Flahr, L.M., Ejack, L.E., and C.A. Morrissey 2015. Latent cognitive effects from low-level PCB exposure in juvenile European starlings, Sturnus vulgaris. Environmental Toxicology and Chemistry DOI 10.1002/35c.3084
  • Michel, N.L., Smith, A., Clark, R.G.*, Hobson, K.A.*, and C.A. Morrissey (in review). Continental-scale analysis of population trends of aerial insectivores reveals diverse spatiotemporal patterns. Methods in Ecology and Evolution
  • Michel, N.L., Hobson, K.A., C.A. Morrissey, Clark, R.G. (in review). Climate variability explains most of the variation in population trends among North American aerial insectivorous birds. Nature Climate Change
  • Flahr, L.M., Michel, N.L., Zahara A.R.D., Jones, P.D., and C.A. Morrissey. 2015. Developmental exposure to Aroclor 1254 alters migratory behaviour in juvenile European starlings (Sturnus vulgaris). Environmental Science and Technology 49(10):6274-83.
  • Morrissey, C.A., Devries, J., Mineau, P., Sanchez-Bayo, F., Liess, M., Cavallaro, M., Liber, K. 2015. Neonicotinoid contamination of surface waters and relative risks to aquatic invertebrates: a review. Environment International 74:291-303.
  • Delso, N. and 29 others alphabetically (incl. Morrissey, C.A.). 2014. Systemic insecticides (neonicotinoids and fipronil): trends, uses, mode of action and metabolites. Environ Sci and Poll Res (special issue).  DOI 10.1007/s11356-014-3470-y
  • Pisa, L. and 17 others (incl Morrissey, C.A.) 2014. Effects of neonicotinoids and fipronil on non-target invertebrates. Environ Sci and Poll Res (special issue).  DOI 10.1007/s11356-014-3471-x
  • Changnon, M., Kreutzweiser D., Mitchell, E.A.D., Morrissey, C.A., Noome, D.A. and Van der Sluijs, J. 2014. Risks of large scale use of systemic insecticides to ecosystem functioning and services. Environ Sci and Poll Res (special issue).  DOI 10.1007/s11356-014-3277-x.
  • Van der Sluijs, J.P. and 29 others alphabetically (incl. Morrissey, C.A.) 2014.  Conclusions of the Worldwide Integrated Assessment on the risks of neonicotinoids and fipronil to biodiversity and ecosystem functioning. Environ Sci and Poll Res (special issue). DOI 10.1007/s11356-014-3229-5.
  • Gibbons, D., Morrissey, C.A., Mineau, P. 2014. A review of the direct and indirect effects of neonicotinoids and fipronil on vertebrate wildlife. Environ Sci and Poll Res (special issue).  DOI 10.1007/s11356-014-3180-5.
  • Morrissey C.A., Stanton D.W.G., Tyler C.R., Pereira M.G., Newton J., Durance I., Ormerod S.J. 2014. Developmental impairment in Eurasian dipper nestlings exposed to urban stream pollutants. Environ Toxicol Chem 33(6): 1315–1323.
  • Main A.R., Headley J.V., Peru K.M., Michel N.L., Cessna A.J., and Morrissey C.A. 2014. Widespread use and frequent detection of neonicotinoid insecticides in wetlands of Canada's prairie pothole region. PLoS ONE 9:e92821.
  • Cavallaro, M., Main, A.R., and Morrissey, C.A. 2014. Muskrat (Ondatra zibethicus) interference with aquatic invertebrate traps. Canadian Field Naturalist 128 (2):200-203.
  • Morrissey, C.A., Stanton, D.W.G., Pereira, D.G., Durance, I., Tyler, C.R., Ormerod, S.J. 2013. Eurasian dipper eggs indicate elevated organohalogenated contaminants in urban rivers. Environ Sci &Technol. 47 (15): 8931–8939.
  • Morrissey, C.A., Boldt, A., Mapstone, A., Newton, J. and S.J. Ormerod.  2013. Stable isotopes as indicators of wastewater effects on the macroinvertebrates of urban rivers. Hydrobiologia 700: 231-244.
  • Elliott, J.E., Levac, J., Guigueno, M.F., Shaw, P., Wayland, M., Morrissey, C.A., Muir, D.C.G., and K.H. Elliott. 2012. Factors influencing legacy pollutant accumulation in alpine osprey: biology, topography, or melting glaciers? Environmental Science and Technology 46(17):9681-89.
  • Morrissey, C.A., Pollet, I., Ormerod, S.J. and J.E. Elliott. 2012. American dippers indicate contaminant biotransport by Pacific salmon. Environmental Science and Technology 46 (2), pp 1153–1162