Brown, P.M.J., Comont, R.F., Poland, R. & Roy, H.E. (2012) Wildlife reports: ladybirds. British Wildlife, 23, 208–210.
Roy Helen E.
First name
Helen
Middle name
E.
Last name
Roy
Essl, F., Hulme, P.E., Jeschke, J.M., Keller, R., Pysek, P., Richardson, D.M., Saul, W.C., Bacher, S., Dullinger, S., Estevez, R.A., Kueffer, C., Roy, H.E., Seebens, H. & Rabitsch, W. (2017) Scientific and Normative Foundations for the Valuation of Alien-Species Impacts: Thirteen Core Principles. Bioscience, 67, 166–178.
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.
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. & Comont, R.F. (2013) Wildlife reports: ladybirds. British Wildlife, 24, 208–209.
Kenis, M., Adriaens, T., Brown, P.M.J., Katsanis, A., San Martin, G., Branquart, E., Maes, D., Eschen, R., Zindel, R., Van Vlaenderen, J., Babendreier, D., Roy, H.E., Hautier, L. & Poland, R. (2017) Assessing the ecological risk posed by a recently established invasive alien predator: Harmonia axyridis as a case study. Biocontrol, 62, 341–354.
Roy, H.E. & Pocock, M.J.O. (2013) The value of citizen science. People and Science.
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.
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.
Pergl, J., Pysek, P., Bacher, S., Essl, F., Genovesi, P., Harrower, C.A., Hulme, P.E., Jeschke, J.M., Kenis, M., Kuhn, I., Perglova, I., Rabitsch, W., Roques, A., Roy, D.B., Roy, H.E., Vilà, M., Winter, M. & Nentwig, W. (2017) Troubling travellers: are ecologically harmful alien species associated with particular introduction pathways?. Neobiota, 32, 1–20.