Ecology and Environment

Roy, H.E. (2010) Encounters with aliens Invasive species - they’re here!. Catalyst, 20, 20–22.
Roy, H.E., Hesketh, H., McCracken, M.E., Pywell, R.F. & Hails, R.S. (2009) Living on the edge: interactions between Lepidoptera and parasites in fragmented habitats. Atropos, 37, 19–26.
Smith, R.M. & Roy, D.B. (2008) Revealing the foundations of biodiversity: The Database of British Insects and their Foodplants. British Wildlife, 20, 17–25.
Preston, C.D. (2008) The aquatic plants of the River Cam and its riparian commons, Cambridge, 1660-1999. Nature in Cambridgeshire, 50, 18–37.
Roy, H.E., Brown, P.M.J., Ware, R.L., Michie, L.J., Beckmann, B. & Majerus, M.E.N. (2008) The harlequin ladybird marches on. British Wildlife, 19, 182–186.