Burns, F., Eaton, M.A., Barlow, K.E., Beckmann, B., Brereton, T.M., Brooks, D.R., Brown, P.M.J., N. Fulaij, A., Gent, T., Henderson, I.G., Noble, D.G., Parsons, M.S., Powney, G.D., Roy, H.E., Stroh, P., Walker, K.J., Wilkinson, J.W., Wotton, S.R. & Gregory, R.D. (2016) Agricultural management and climatic change are the major drivers of biodiversity change in the UK. PLoS ONE, 11, e0151595.

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.

Roy, H.E., Rorke, S.L., Beckmann, B., Booy, O., Botham, M.S., Brown, P.M.J., Harrower, C.A., Noble, D.G., Sewell, J. & Walker, K.J. (2015) The contribution of volunteer recorders to our understanding of biological invasions. Biological Journal of the Linnean Society, 115, 678–689.

Gardiner, M., Losey, J., Smyth, R., Allee, L., Roy, H.E. & Brown, P.M.J. (2012) Data Accuracy and Citizen Science: Lessons Learned from Studying Lady Beetles in the US and UK. Frontiers in Ecology and the Environment, 10, 471- 476.

Roy, H.E., Brown, P.M.J., Adriaens, T., Berkvens, N., Borges, I., Clusella-Trullas, S., Comont, R.F., De Clercq, P., Eschen, R., Estoup, A., Evans, E.W., Facon, B., Gardiner, M.M., Gil, A., Grez, A.A., Guillemaud, T., Haelewaters, D., Herz, A., Honek, A., Howe, A.G., Hui, C., Hutchison, W.D., Kenis, M., Koch, R.L., Kulfan, J., Handley, L.L., Lombaert, E., Loomans, A., Losey, J., Lukashuk, A.O., Maes, D., Magro, A., Murray, K.M., San Martin, G., Martinkova, Z., Minnaar, I.A., Nedved, O., Orlova-Bienkowskaja, M.J., Osawa, N., Rabitsch, W., Ravn, H.P., Rondoni, G., Rorke, S.L., Ryndevich, S.K., Saethre, M.G., Sloggett, J.J., Soares, A.O., Stals, R., Tinsley, M.C., Vandereycken, A., van Wielink, P., Viglasova, S., Zach, P., Zakharov, I.A., Zaviezo, T. & Zhao, Z.H. (2016) The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology. Biological Invasions, 18, 997-1044.

Holroyd, O., Brown, P.M.J., Roy, H.E. & Majerus, M.E.N. (2008) The harlequin ladybird, Harmonia axyridis, reaches Scotland. Entomologists’ Record and Journal of Variation, 120, 42-43.

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.

Brown, P.M.J., Adriaens, T., Bathon, H., Cuppen, J., Goldarazena, A., Hägg, T., Kenis, M., Klausnitzer, B.E.M., Kovář, I., Loomans, A.J.M., Majerus, M.E.N., Nedved, O., Pedersen, J., Rabitsch, W., Roy, H.E., Ternois, V., Zakharov, I.A. & Roy, D.B. (2008) Harmonia axyridis in Europe: spread and distribution of a non-native coccinellid. BioControl, 53, 5-21.

Brown, P.M.J., Roy, H.E., Rothery, P., Roy, D.B., Ware, R.L. & Majerus, M.E.N. (2007) Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid. BioControl, 53, 55-67.

Brown, P.M.J., Roy, H.E., Rothery, P., Roy, D.B., Ware, R.L. & Majerus, M.E.N. (2008) Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid. From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 55-67. Springer Netherlands.

Grez, A.A., Zaviezo, T., Roy, H.E., Brown, P.M.J. & Segura, B. (2017) In the shadow of the condor: invasive Harmonia axyridis found at very high altitude in the Chilean Andes. Insect Conservation and Diversity, 10, 483-487.

Roy, H.E., Brown, P.M.J., Rothery, P., Ware, R.L. & Majerus, M.E.N. (2007) Interactions between the fungal pathogen Beauveria bassiana and three species of coccinellid: Harmonia axyridis, Coccinella septempunctata and Adalia bipunctata. BioControl, 53, 265-276.

Roy, H.E., Brown, P.M.J., Frost, R. & Poland, R. (2011) Ladybirds (Coccinellidae) Of Britain And Ireland. Field Studies Council, Shrewsbury.

Brown, P.M.J., James, T.J., Stewart, A.J.A. & Roy, H.E. (2008) Mapping insect distributions in the 21st Century: a role for the Royal Entomological Society in partnership with the Biological Records Centre and the National Biodiversity Network. Antenna,, 32, 149-151.

Ribbands, B., Brown, P.M.J., Roy, H.E. & Majerus, M.E.N. (2009) The most northerly record of the harlequin ladybird (Col., Coccinellidae) in the British Isles. Entomologist's Monthly Magazine, 145, 43-44.

Brown, P.M.J. & Roy, H.E. (2018) Native ladybird decline caused by the invasive harlequin ladybird Harmonia axyridis: evidence from a long-term field study. Insect Conservation and Diversity, 11, 230-239.

Brown, P.M.J. (2010) The Spread Of The Harlequin Ladybird Harmonia Axyridis (Coleoptera: Coccinellidae) In Europe And Its Effect On Native Ladybirds. Anglia Ruskin University.

Brown, P.M.J. & Roy, H.E. (2007) The spread of the Harlequin Ladybird Harmonia axyridis in late 2006. Atropos, 31, 32-33.

Brown, P.M.J. & Roy, H.E. (2007) The spread of the harlequin ladybird in Cambridgeshire and Huntingdonshire. Nature in Cambridgeshire, 49, 55-57.

Brown, P.M.J., Roy, H.E. & Majerus, M.E.N. (2007) Update on the spread of an invasive ladybird. Biocontrol News and Information, 28, 16-17.

Brown, P.M.J., Comont, R.F., Poland, R. & Roy, H.E. (2012) Wildlife reports: ladybirds. British Wildlife, 23, 208-210.

Brown, P.M.J., Roy, H.E. & Comont, R.F. (2013) Wildlife reports: ladybirds. British Wildlife, 24, 208-209.