Roy, H.E., Hesketh, H., Purse, B.V., Eilenberg, J., Santini, A., Scalera, R., Stentiford, G.D., Adriaens, T., Bacela-Spychalska, K., Bass, D., Beckmann, K.M., Bessell, P., Bojko, J., Booy, O., Cardoso, A.Cristina, Essl, F., Groom, Q., Harrower, C.A., Kleespies, R., Martinou, A.F., van Oers, M.M., Peeler, E.J., Pergl, J., Rabitsch, W., Roques, A., Schaffner, F., Schindler, S., Schmidt, B.R., Schönrogge, K., Smith, J., Solarz, W., Stewart, A.J.A., Stroo, A., Tricarico, E., Turvey, K.M.A., Vannini, A., Vilà, M., Woodward, S., Wynns, A.Amtoft & Dunn, A.M. (2016) Alien Pathogens on the Horizon: Opportunities for Predicting their Threat to Wildlife. Conservation Letters, n/a-n/a.

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.

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.

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.

Roy, H.E. & Wajnberg, E. (2008) 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 From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 1-4. Springer Netherlands, Dordrecht.

Roy, H.E. & Wajnberg, E. (2008) 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 From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 1-4. Springer Netherlands, Dordrecht.

Edwards, R. & Roy, H.E. (2009) Provisional Atlas Of The Aculeate Hymenoptera Of The British Isles, Part 7. Centre for Ecology and Hydrology, Wallingford.

Ceryngier, P., Roy, H.E. & Ware, R.L. (2012) Natural Enemies Of Ladybird Beetles. In Ecology Of The Coccinellidae. Hodek, I., Honěk, A. And Van Emden, H. Kluwer Academic Publishers.

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

Roy, H.E. & Roy, D.B. (2008) Harmonia Axyridis. In: Handbook Of Alien Species In Europe. (Ed.: Daisie). Springer series in Invasion Ecology.

Tweddle, J.C., Robinson, L.D., Pocock, M.J.O. & Roy, H.E. (2012) Guide To Citizen Science: Developing, Implementing And Evaluating Citizen Science To Study Biodiversity And The Environment In The Uk. NERC/Centre for Ecology & Hydrology, Wallingford.

Roy, H.E. (2010) Coccinellids In A Changing World. In: Ecology Of Aphidophaga (Eds.: P. Kindlmann). Springer Academic Publishers, Netherlands.

Pocock, M.J.O., Chapman, D.S., Sheppard, L.J. & Roy, H.E. (2014) Choosing And Using Citizen Science: A Guide To When And How To Use Citizen Science To Monitor Biodiversity And The Environment. NERC/Centre for Ecology & Hydrology, Wallingford.