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Dr Xavier Harrison

Dr Xavier Harrison

Lecturer in Biosciences


 Stella Turk Building LG.3.12


University of Exeter, Penryn Campus, Penryn, TR10 9FE


The natural world is alive with microbes, including bacteria, fungi and viruses. These microbes can live in close association with animal and plant hosts, and have huge impacts on their biology, influencing traits such as disease susceptibility, digestive efficiency and lifespan.

But why is the microbiome apparently so important for organismal fitness? And what are the mechanisms by which the microbiome can cause differences among individuals in life history trajectory? These are the questions that drive me.

I’m a molecular ecologist with a broad background in genetics and evolutionary ecology. I use a range of systems to tackle questions about host-microbe interactions, including amphibians, birds and insects.




2011   PhD Biological Sciences, University of Exeter

2006   BSc. (Hons) Biology, Class I, University of York


2019 – Present         Lecturer, University of Exeter

2013-2018                 Research Fellow, Institute of Zoology, ZSL

2011-2013                 BBSRC Postdoctoral Researcher, University of Exeter

2007-2011                 PhD, University of Exeter

2006-2007                 Research Technician, UKPopNet, University of York


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