Roy Helen E.

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

Roy, H.E., Preston, C.D., Harrower, C.A., Rorke, S.L., Noble, D.G., Sewell, J., Walker, K.J., Marchant, J.H., Seeley, B., Bishop, J., Jukes, A.R., Musgrove, A.J., Pearman, D.A. & Booy, O. (2014) GB Non-native Species Information Portal: documenting the arrival of non-native species in Britain. Biological Invasions, 16, 2495–2505.

Pearce-Higgins, J.W., Beale, C.M., Oliver, T.H., August, T., Carroll, M., Massimino, D., Ockendon, N., Savage, J., Wheatley, C.J., Ausden, M.A., Bradbury, R.B., Duffield, S.J., Macgregor, N.A., McClean, C.J., Morecroft, M.D., Thomas, C.D., Watts, O., Beckmann, B., Fox, R., Roy, H.E., Sutton, P.G., Walker, K.J. & Crick, H.Q. (2017) A national-scale assessment of climate change impacts on species: Assessing the balance of risks and opportunities for multiple taxa. Biological Conservation, 213, 124–134.

Pocock, M.J.O., Chapman, D., Sheppard, L. & Roy, H.E. (2014) A Strategic Framework to Support the Implementation of Citizen Science for Environmental Monitoring. NERC/Centre for Ecology & Hydrology, Wallingford.

Roy, H.E., Wajnberg, E., 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 pp. 1–4. Springer Netherlands, Dordrecht.

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.

Essl, F., Bacher, S., Blackburn, T., Booy, O., Brundu, G., Brunel, S., Cardoso, A.C., Eschen, R., Gallardo, B., Galil, B., García-Berthou, E., Genovesi, P., Groom, Q., Harrower, C.A., Hulme, P.E., Katsanevakis, S., Kenis, M., Kühn, I., Kumschick, S., Martinou, A.F., Nentwig, W., O’Flynn, C., Pagad, S., Pergl, J., Pyšek, P., Rabitsch, W., Richardson, D.M., Roques, A., Roy, H.E., Scalera, R., Schindler, S., Seebens, H., Vanderhoeven, S., Vilà, M., Wilson, J., Zentos, A. & Jeschke, J.M. (2015) Crossing Frontiers in Tackling Pathways of Biological Invasions. BioScience, 65, 769–782.

Pocock, M.J.O., Chapman, D., Sheppard, L. & 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.

Roy, H.E., Wajnberg, E., 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 pp. 1–4. Springer Netherlands, Dordrecht.

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