Ecology and Environment

Brown, P.M.J., Roy, H.E. & Comont, R.F. (2013) Wildlife reports: ladybirds. British Wildlife, 24, 208–209.
Hill, M.O., Arnold, H.R., Broad, G.R., Brown, P.M.J., James, T.J., McLean, I.F.G., Preston, C.D., Rowland, F. & Roy, D.B. (2006) Biological Records Centre Annual Report 2005-2006. Joint Nature Conservation Committee, Peterborough.
Hill, M.O., Arnold, H.R., Broad, G.R., Burton, V., James, T.J., McLean, I.F.G., Preston, C.D., Rowland, F. & Roy, D.B. (2005) Biological Records Centre: Report 1999-2004. JNCC.
Hill, M.O., Beckmann, B., Bishop, J.D.D., Fletcher, M.R., Lear, D.B., Marchant, J.H., Maskell, L.C., Noble, D.G., Rehfisch, M.M., Roy, H.E., Roy, S. & Sewell, J. (2009) Developing an Indicator of the Abundance, Extent and Impact of Invasive Non-Native Species. Final Report. Defra.
Hill, M.O., Bacon, J., Beckmann, B., Bishop, J.D.D., Marchant, J.H., Musgrove, A.J., Rathod, B., Roy, H.E. & Sewell, J. (2010) GB Non-Native Species Information Portal: Interim Report for the Period February 2009 to March 2010. Defra.