"In nature, nothing exists alone" Rachel Carson
"In nature, nothing exists alone" Rachel Carson


Friesen, O.C., Poulin, R., and Lagrue, C. (2017) Differential impacts of shared parasites on fitness components among competing hosts. Ecology and Evolution In press


Friesen, O.C. and Roth, J.D. (2016) Alternative prey use affects helminth parasite infections in gray wolves. Journal of Animal Ecology 85(5): 1265-1274


Friesen, O.C., Roth, J.D., Graham, L.C. (2015) Sex-biased parasitism in monogamous arctic foxes is driven by diet. Journal of Mammalogy 96(2): 417-424


Friesen, O.C. and Roth, J.D. (2017) Parasites in sympatric arctic and red foxes related to diet, behaviour, and life history. In preparation


Friesen, O.C. and Hann, B. J. (2017) Rapid bioassessment protocols for detecting impacts of cottage development on boreal shield lakes using zooplankton communities. In preparation

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© Olwyn Friesen