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 David Fisher

David Fisher

PhD researcher

 Daphne du Maurier 


Daphne du Maurier Building, University of Exeter,  Penryn Campus, Penryn, Cornwall, TR10 9FE, UK


2011 BSc Zoology (Hons), University of Liverpool
2012 MRes Advanced Biological Sciences, University of Liverpool


Research interests

My current research involves understanding how social interactions between individuals affect their fitness and the population as a whole. To do this I am monitoring a population of field crickets (Gryllus campestris) using video cameras to record nearly everything the individuals in the population do over their entire lives. I will twin this with repeated behavioural tests of “personality” traits on the crickets that are temporarily removed from the field under surveillance. Through Social Network theory and related techniques I can then quantifying the importance of being popular, active and aggressive, and how these change throughout your lifetime.

Previous work at the University of Liverpool focused on sexual behaviour and its determinants, investigating what makes a monandrous fly polyandrous. There I worked with Dr. Tom Price to examine conflicting claims about the fruit fly Drosophila subobscura’s mating system, and what may have caused the contention.

I am also interested in applying evolutionary theory to alternative avenues, and the promotion of science outside of academia. To this end I am a contributor to the blog where I and my fellow postgraduate researchers attempt to share our entertaining weekly discussions with the interested general public.

Follow me on Twitter @DFofFreedom and I blog from here

Research projects

PhD thesis: Social Networks in Wild Insects

Funding: NERC

Supervisor(s): Prof. Tom Tregenza & Dr. Rolando Rodríguez-Muñoz


Fisher DN, Rodrıguez-Munoz R, Tregenza T. (2016) Comparing pre- and post-copulatory mate competition using social network analysis in wild crickets. Behavioral Ecology doi: 10.1093/beheco/arv236

Fisher DN, James A, Rodrıguez-Munoz R, Tregenza T. (2015) Behaviour in captivity predicts some aspects of natural behaviour, but not others, in a wild cricket population. Proc. R. Soc. B 282: 20150708

Tyler, T. Fisher, DN. d'Ettorre, P. Rodríguez-Muñoz, R and Tregenza, T. (2015) Chemical cues mediate species recognition in field crickets. Front. Ecol. Evol

Fisher, DN. David, M. Tregenza, T & Rodríguez-Muñoza, R (2015) Dynamics of among-individual behavioral variation over adult lifespan in a wild insect, Behavioral Ecology

Fisher, DN., Doff, R. J. & Price, T. A. R. (2013) True polyandry and pseudopolyandry: why does a monandrous fly remate? BMC Evolutionary Biology, 13:157

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