2015-2018 NERC-funded Associate Research Fellow, University of Cambridge (Principal investigator: Prof. Nick Davies) 2014-2015 Post-doctoral Research Fellow, University of Pretoria (Principal investigator: Prof. Tim Clutton-Brock) 2012-2014 BBSRC-funded Associate Research Fellow, University of Exeter (Principal investigator: Dr Andrew Young) 2008-2012 University of Bristol Post-graduate Scholarship (Ph.D supervisors: Dr Andrew Radford, University of Bristol, and Dr Andrew Young, University of Exeter) 2007-2008 BBSRC-funded Research Assistant, University of Bristol (Principal investigator: Prof. Richard Tinsley) 2004-2007 B.Sc (Hons) Zoology (First Class), University of Bristol

Birdsong Host-parasite coevolution Cooperation and conflict in social animals

JE York, AN Radford, B de Vries, TG Groothuis, AJ Young. 2016. Dominance-related seasonal song production is unrelated to circulating testosterone in a subtropical songbird. General and Comparative Endocrinology, 233: 43-52. LA Walker, JE York, and AJ Young. 2016. Sexually selected sentinels? Evidence of a role for intrasexual competition in sentinel behavior. Behavioural Ecology. doi: 10.1093/beheco/arw064 JE York, AN Radford, AG Groothuis, and AJ Young. 2016. Dominant male song performance reflects current immune state in a cooperatively breeding songbird. Ecology and Evolution. doi:10.1002/ece3.1938 DL Cram, JD Blount, JE York, and AJ Young. 2015. Immune response in a wild bird is predicted by oxidative status, but does not cause oxidative stress. PLOS ONE, 10: e0122421. XA Harrison, JE York, and AJ Young. 2014. Population genetic structure and direct observations reveal sex‐reversed patterns of dispersal in a cooperative bird. Molecular Ecology 23 (23): 5740-5755 JE York, AJ Young, and AN Radford. 2014. Singing in the moonlight: dawn song performance of a diurnal bird varies with lunar phase. Biology Letters 10 (1): 1-4. XA Harrison, JE York, DL Cram, and AJ Young. 2013. Extra‐group mating increases inbreeding risk in a cooperatively breeding bird. Molecular Ecology 22 (22): 5700-5715. XA Harrison, JE York, DL Cram, MC Hares, and AJ Young. 2013. Complete reproductive skew within white-browed sparrow weaver groups despite outbreeding opportunities for subordinates of both sexes. Behavioral Ecology and Sociobiology 67 (12): 1915-1929. RC Tinsley, LC Stott, JE York, ALE Everard, SJ Chapple, J Jackson, M Viney, and MC Tinsley. 2012. Acquired immunity protects against helminth infection in a natural host population: long-term field and laboratory evidence. International Journal for Parasitology 42 (10): 931-938. RC Tinsley, JE York, LC Stott, ALE Everard, SJ Chapple, and MC Tinsley. 2011. Environmental constraints influencing survival of an African parasite in a north temperate habitat: effects of temperature on development within the host. Parasitology, 138: 1039-1052. RC Tinsley, JE York, ALE Everard, LC Stott, SJ Chapple, and MC Tinsley. 2011. Environmental constraints influencing survival of an African parasite in a north temperate habitat: effects of temperature on egg development. Parasitology, 138: 1029-1038.