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Roy, H.E., Pocock, M.J.O., Preston, C.D., Roy, D.B., Savage, J. & Tweddle, J.C. (2012) Understanding Citizen Science And Environmental Monitoring: Final Report On Behalf Of Uk Environmental Observation Framework. NERC/Centre for Ecology & Hydrology, Wallingford.

Pocock, M.J.O., Chapman, D.S., Sheppard, L.J. & 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., Beckmann, B., Comfont, R.F., Hails, R.S., Harrington, R., Medlock, J., Purse, B. & Shortall, C.R. (2009) Nuisance Insects And Climate Change. Centre for Ecology and Hydrology, Wallingford.

Hill, M.O., Ames, S.L., Bacon, J., Botham, M.S., Lindsley-Leake, S., Marchant, J.H., Preston, C.D., Rehfisch, M.M., Roy, D.B., Roy, H.E., Tyler-Walters, H. & Wright, L. (2008) Non-Native Species Portal Feasibility Study. CEH, Huntingdon.

Roy, H.E., Bacon, J., Beckmann, B., Harrower, C.A., Hill, M.O., Isaac, N.J.B., Preston, C.D., Rathod, B., Rorke, S.L., Marchant, J.H., Musgrove, A.J., Noble, D.G., Sewell, J., Seeley, B., Sweet, N., Adams, L., Bishop, J., Jukes, A.R., Walker, K.J. & Pearman, D.A. (2012) Non-Native Species In Great Britain: Establishment, Detection And Reporting To Inform Effective Decision-Making. Defra.

Roy et al. 2012 - Defra project report - Non-native species in Great Britain.pdf (3.34 MB)

Parrott, D., Roy, S., Baker, R., Cannon, R., Eyre, D., Hill, M.O., Wagner, M., Preston, C.D., Roy, H.E., Beckmann, B., Copp, G.H., Ellis, J., Laing, I., Britton, J.R., Gozlan, R.E. & Mumford, J. (2009) Horizon Scanning For New Invasive Non-Native Species In England. Report To Natural England (Natural England Contract No. Sae03-02-189). Central Science Laboratory, York.

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.

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.

Magazine Article

Roy, H.E. & Pocock, M.J.O. (2013) The value of citizen science. People and Science.

Journal Article

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

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

Beckmann, B., Purse, B.V., Roy, D.B., Roy, H.E., Sutton, P.G. & Thomas, C.D. (2015) Two species with an unusual combination of traits dominate responses of British grasshoppers and crickets to environmental change. PloS ONE, 10, e0130488.

Beckmann et al 2015 - Two Species with an Unusual Combination of Traits Dominate Responses of British Grasshoppers and Crickets to Environmental Change.pdf (1.76 MB)

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.

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. (2007) The spread of the Harlequin Ladybird Harmonia axyridis in late 2006. Atropos, 31, 32-33.

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.

Roy, H.E. & Migeon, A. (2010) Non-native coccinellids in Europe. In: DAISIE: Non-natives invertebrates in Europe (ed. A. Roques). BioRisk, 4, 293–313.

Seebens, H., Blackburn, T.M., Dyer, E.E., Genovesi, P., Hulme, P.E., Jeschke, J.M., Pagad, S., Pysek, P., Winter, M., Arianoutsou, M., Bacher, S., Blasius, B., Brundu, G., Capinha, C., Celesti-Grapow, L., Dawson, W., Dullinger, S., Fuentes, N., Jager, H., Kartesz, J., Kenis, M., Kreft, H., Kuhn, I., Lenzner, B., Liebhold, A., Mosena, A., Moser, D., Nishino, M., Pearman, D.A., Pergl, J., Rabitsch, W., Rojas-Sandoval, J., Roques, A., Rorke, S.L., Rossinelli, S., Roy, H.E., Scalera, R., Schindler, S., Stajerova, K., Tokarska-Guzik, B., van Kleunen, M., Walker, K.J., Weigelt, P., Yamanaka, T. & Essl, F. (2017) No saturation in the accumulation of alien species worldwide. Nature Communications, 8.

Pearce-Higgins, J.W., Beale, C.M., Oliver, T.H., August, T.A., 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.P. (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.

Pearce-Higgins et al 2017 - A national-scale assessment of climate change impacts on species - Assessing the balance of risks and opportunities for multiple taxa.pdf (2.58 MB)

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., 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.

Honek, A., Martinkova, Z., Dixon, A.F.G., Roy, H.E. & Pekar, S. (2016) Long-term changes in communities of native coccinellids: population fluctuations and the effect of competition from an invasive non-native species. Insect Conservation and Diversity, 9, 202-209.

Roy, H.E., Hesketh, H., McCracken, M.E., Pywell, R.F. & Hails, R.S. (2009) Living on the edge: interactions between Lepidoptera and parasites in fragmented habitats. Atropos, 37, 19-26.

Bela, G., Peltola, T., Young, J.C., Balazs, B., Arpin, I., Pataki, G., Hauck, J., Kelemen, E., Kopperoinen, L., Van Herzele, A., Keune, H., Hecker, S., Suskevics, M., Roy, H.E., Itkonen, P., Kulvik, M., Laszlo, M., Basnou, C., Pino, J. & Bonn, A. (2016) Learning and the transformative potential of citizen science. Conservation Biology, 30, 990-999.

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