Olwyn Friesen

Ecological and Evolutionary Parasitology

© O.C.Friesen

Sessional Instructor

BSc (hons), MSc, PhD 

Winnipeg, Manitoba


Welcome to my web based curriculum vitae.


I am a sessional instructor at the University of Manitoba, teaching in the Department of Biological Sciences. 


I completed my PhD in 2018 at the University of Otago, in Dunedin, New Zealand, with the Evolutionary and Ecological Parasitology Research Group. My research was focused on parasite-mediated interspecific interactions in a community of crustaceans. I was examining relationships between amphipods, isopods, and their parasites within freshwater communities.


I completed my master's degree at the University of Manitoba, with Dr. Jim Roth. I studied the relationships between the diet of canids, including wolves, arctic and red foxes, and their parasite communities. I also considered how other factors, including behaviour, life history, and intraspecific variation (e.g., age and sex), may also influence canid parasite intensity, abundance, and prevalence. I am interested in studying the ecology of parasites and their hosts, including the influence of parasites on trophic interactions, food webs, and behaviour. I am further interested in the impacts of parasites on predator-prey relationships and their combined effect with other stressors on their hosts.


Prior to my master's work, I completed my B.Sc. (hons) in zoology at the University of Manitoba. My honours research examined how zooplankton could be used in rapid bioassessment of lakes as they are a keystone lentic community. They occupy an intermediate trophic position in the food web of a lake and are responsive to both top-down and bottom-up trophic interactions.

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© Olwyn Friesen