Helen Elizabeth Roy

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See Helen Elizabeth Roy in the ISPI database of scientists.


Publications of Helen Elizabeth Roy

Biological Invasions (2019) 21, 709-723
Montserrat Vilà, Belinda Gallardo, Cristina Preda, Emili García-Berthou, Franz Essl, Marc Kenis, Helen E. Roy and Pablo González-Moreno (2019)
A review of impact assessment protocols of non-native plants

Environmental Entomology (2019) 48, 80-87
Alois Honek, Zdenka Martinkova, Helen E. Roy, Anthony F.G. Dixon, Jiri Skuhrovec, Stano Pekár and Marek Brabec (2019)
Differences in the phenology of Harmonia axyridis (Coleoptera: Coccinellidae) and native Coccinellids in Central Europe

European Journal of Entomology (2018) 115, 658-667
Milada Holecová, Peter Zach, Katarína Hollá, Miroslava Sebestová, Mária Klesniaková, Anna Sestáková, Alois Honek, Oldrich Nedved, Michal Parák, Zdenka Martinková, Juraj Holec, Sandra Viglásová, Peter M.J. Brown, Helen E. Roy and Ján Kulfan (2018)
Overwintering of ladybirds (Coleoptera: Coccinellidae) on Scots pine in Central Europe

Biological Invasions (2018) 20, 1009-1031
Piotr Ceryngier, Oldrich Nedved, Audrey A. Grez, Eric W. Riddick, Helen E. Roy, Gilles San Martin, Tove Steenberg, Petr Vesely, Tania Zaviezo, Alvaro Zúñiga-Reinoso and Danny Haelewaters (2018)
Predators and parasitoids of the harlequin ladybird, Harmonia axyridis, in its native range and invaded areas

Journal of Applied Ecology (2018) 55, 526-538
Helen E. Roy, Wolfgang Rabitsch, Riccardo Scalera, Alan Stewart, Belinda Gallardo, Piero Genovesi, Franz Essl, Tim Adriaens, Sven Bacher, Olaf Booy, Etienne Branquart, Sarah Brunel, Gordon Howard Copp, Hannah Dean, Bram D'hondt, Melanie Josefsson, Marc Kenis, Marianne Kettunen, Merike Linnamagi, Frances Lucy, Angeliki Martinou, Niall Moore, Wolfgang Nentwig, Ana Nieto, Jan Pergl, Jodey Peyton, Alain Roques, Stefan Schindler, Karsten Schönrogge, Wojciech Solarz, Paul D. Stebbing, Teodora Trichkova, Sonia Vanderhoeven, Johan van Valkenburg and Argyro Zenetos (2018)
Developing a framework of minimum standards for the risk assessment of alien species

BioControl (2018) 63, 241-252
A. Honek, Z. Martinkova, A.F.G. Dixon, J. Skuhrovec, H.E. Roy, M. Brabec and S. Pekar (2018)
Life cycle of Harmonia axyridis in central Europe

BioControl (2017) 62, 341-354
Marc Kenis, Tim Adriaens, Peter M.J. Brown, Angelos Katsanis, Gilles San Martin, Etienne Branquart, Dirk Maes, René Eschen, Renate Zindel, Johan Van Vlaenderen, Dirk Babendreier, Helen E. Roy, Louis Hautier and Remy L. Poland (2017)
Assessing the ecological risk posed by a recently established invasive alien predator: Harmonia axyridis as a case study

BioControl (2017) 62, 373-384
P.M. Wells, J. Baverstock, S.J. Clark, F.M. Jiggins, H.E. Roy and J.K. Pell (2017)
Determining the effects of life stage, shared prey density and host plant on intraguild predation of a native lacewing (Chrysoperla carnea) by an invasive coccinellid (Harmonia axyridis)

BioControl (2017) 62, 409-421
Sandra Viglásová, Oldrich Nedved, Peter Zach, Ján Kulfan, Michal Parák, Alois Honek, Zdenka Martinková and Helen E. Roy (2017)
Species assemblages of ladybirds including the harlequin ladybird Harmonia axyridis: a comparison at large spatial scale in urban habitats

Journal of Applied Ecology (2017) 54, 657-669
Wolf-Christian Saul, Helen E. Roy, Olaf Booy, Lucilla Carnevali, Hsuan-Ju Chen, Piero Genovesi, Colin A. Harrower, Philip E. Hulme, Shyama Pagad, Jan Pergl and Jonathan M. Jeschke (2017)
Assessing patterns in introduction pathways of alien species by linking major invasion data bases

Biological Invasions (2017) 19, 2401-2417
Olaf Booy, Aileen C. Mill, Helen E. Roy, Alice Hiley, Niall Moore, Pete Robertson, Simon Baker, Matt Brazier, Mathilde Bue, Richard Bullock, Steve Campbell, Dominic Eyre, Jim Foster, Maggie Hatton-Ellis, Jo Long, Craig Macadam, Camilla Morrison-Bell, John Mumford, Jonathan Newman, David Parrott, Robin Payne, Trevor Renals, Eoina Rodgers, Mark Spencer, Paul Stebbing, Mike Sutton-Croft, Kevin J. Walker, Alastair Ward, Stan Whittaker and Gabe Wyn (2017)
Risk management to prioritise the eradication of new and emerging invasive non-native species

BioControl (2017) 62, 355-371
Danny Haelewaters, Serena Y. Zhao, Susana Clusella-Trullas, Ted E. Cottrell, André De Kesel, Lukás Fiedler, Annette Herz, Helen Hesketh, Cang Hui, Regina G. Kleespies, John E. Losey, Ingrid A. Minnaar, Katie M. Murray, Oldrich Nedved, Walter P. Pfliegler, C. Lidwien Raak-van den Berg, Eric W. Riddick, David I. Shapiro-Ilan, Rebecca R. Smyth, Tove Steenberg, Paul S. van Wielink, Sandra Viglásová, Zihua Zhao, Piotr Ceryngier and Helen E. Roy (2017)
Parasites of Harmonia axyridis: current research and perspectives

Biological Invasions (2016) 18, 935-952
Jeff R. Garnas, MarieAnne AugerRozenberg, Alain Roques, Cleo Bertelsmeier, Michael J. Wingfield, Davina L. Saccaggi, Helen E. Roy and Bernard Slippers (2016)
Complex patterns of global spread in invasive insects: eco-evolutionary and management consequences

Biological Invasions (2016) 18, 997-1044
Helen E. Roy, Peter M.J. Brown, Tim Adriaens, Nick Berkvens, Isabel Borges, Susana ClusellaTrullas, Richard F. Comont, Patrick De Clercq, Rene Eschen, Arnaud Estoup, Edward W. Evans, Benoit Facon, Mary M. Gardiner, Artur Gil, Audrey A. Grez, Thomas Guillemaud, Danny Haelewaters, Annette Herz, Alois Honek, Andy G. Howe, Cang Hui, William D. Hutchison, Marc Kenis, Robert L. Koch, Jan Kulfan, Lori Lawson Handley, Eric Lombaert, Antoon Loomans, John Losey, Alexander O. Lukashuk, Dirk Maes, Alexandra Magro, Katie M. Murray, Gilles San Martin, Zdenka Martinkova, Ingrid A. Minnaar, Oldrich Nedved, Marina J. OrlovaBienkowskaja, Naoya Osawa, Wolfgang Rabitsch, Hans Peter Ravn, Gabriele Rondoni, Steph L. Rorke, Sergey K. Ryndevich, MayGuri Saethre, John J. Sloggett, Antonio Onofre Soares, Riaan Stals, Matthew C. Tinsley, Axel Vandereycken, Paul van Wielink, Sandra Viglásová, Peter Zach, Ilya A. Zakharov, Tania Zaviezo and Zihua Zhao (2016)
The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology

Biological Invasions (2016) 18, 971-983
Cang Hui, David M. Richardson, Pietro Landi, Henintsoa O. Minoarivelo, Jeff Garnas and Helen E. Roy (2016)
Defining invasiveness and invasibility in ecological networks

Ecological Entomology (2015) 40, 336-348
Helen E. Roy and Peter M.J. Brown (2015)
Ten years of invasion: Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in Britain

Biological Invasions (2014) 16, 1805-1817
Richard F. Comont, Helen E. Roy, Richard Harrington, Christopher R. Shortall and Bethan V. Purse (2014)
Ecological correlates of local extinction and colonisation in the British ladybird beetles (Coleoptera: Coccinellidae)

Biological Invasions (2014) 16, 2495-2505
Helen E. Roy, Chris D. Preston, Colin A. Harrower, Stephanie L. Rorke, David Noble, Jack Sewell, Kevin Walker, John Marchant, Becky Seeley, John Bishop, Alison Jukes, Andy Musgrove, David Pearman and Olaf Booy (2014)
GB Non-native Species Information Portal: documenting the arrival of non-native species in Britain

European Journal of Entomology (2011) 108, 87-90
P.M. Wells, J. Baverstock, M.E.N. Majerus, F.M. Jiggins, H.E. Roy and J.K. Pell (2011)
The effect of the coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) on transmission of the fungal pathogen Pandora neoaphidis (Entomophthorales: Entomophthoraceae)

Ecological Entomology (2011) 36, 231-240
Peter M.J. Brown, Robert Frost, Julian Doberski, Tim Sparks, Richard Harrington and Helen E. Roy (2011)
Decline in native ladybirds in response to the arrival of Harmonia axyridis: early evidence from England

FEMS Microbiology Ecology (2011) 77, 229-237
Emma L. Ormond, Alison P.M. Thomas, Judith K. Pell, Stephen N. Freeman and Helen E. Roy (2011)
Avoidance of a generalist entomopathogenic fungus by the ladybird, Coccinella septempunctata

BioControl (2011) 56, 663-679
Helen E. Roy, Emma Rhule, Susanne Harding, Lori-Jayne Lawson Handley, Remy L. Poland, Eric W. Riddick and Tove Steenberg (2011)
Living with the enemy: parasites and pathogens of the ladybird Harmonia axyridis

FEMS Microbiology Ecology (2010) 74, 146-154
Emma L. Ormond, Alison P.M. Thomas, Philip J.A. Pugh, Judith K. Pell and Helen E. Roy (2010)
A fungal pathogen in time and space: the population dynamics of Beauveria bassiana in a conifer forest

BioControl (2008) 53, 235-252
Marc Kenis, Helen E. Roy, Renate Zindel and Michael E.N. Majerus (2008)
Current and potential management strategies against Harmonia axyridis

Ecological Entomology (2008) 33, 175-182
H.E. Roy, J. Baverstock, R.L. Ware, S.J. Clark, M.E.N. Majerus, K.E. Baverstock and J.K. Pell (2008)
Intraguild predation of the aphid pathogenic fungus Pandora neoaphidis by the invasive coccinellid Harmonia axyridis

BioControl (2008) 53, 265-276
Helen Elizabeth Roy, Peter M.J. Brown, Peter Rothery, Remy L. Ware and Michael E.N. Majerus (2008)
Interactions between the fungal pathogen Beauveria bassiana and three species of coccinellid: Harmonia axyridis , Coccinella septempunctata and Adalia bipunctata

European Journal of Entomology (2008) 105, 391-398
H.E. Roy and T.E. Cottrell (2008)
Forgotten natural enemies: Interactions between coccinellids and insect-parasitic fungi

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

BioControl (2008) 53, 55-67
Peter Michael James Brown, Helen E. Roy, Peter Rothery, David B. Roy, Remy L. Ware and Michael E.N. Majerus (2008)
Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid

BioControl (2008) 53, 147-168
Judith K. Pell, Jason Baverstock, Helen E. Roy, Remy L. Ware and Michael E.N. Majerus (2008)
Intraguild predation involving Harmonia axyridis : a review of current knowledge and future perspectives

Entomologia Experimentalis et Applicata (2007) 125, 33-38
H.E. Roy, H. Rudge, L. Goldrick and D. Hawkins (2007)
Eat or be eaten: prevalence and impact of egg cannibalism on two-spot ladybirds, Adalia bipunctata

Annual Review of Entomology (2006) 51, 331-357
H.E. Roy, D.C. Steinkraus, J. Eilenberg, A.E. Hajek and J.K. Pell (2006)
Bizarre interactions and endgames: Entomopathogenic fungi and their arthropod hosts

Ecological Entomology (2006) 31, 207-215
Michael Majerus, Vicky Strawson and Helen Roy (2006)
The potential impacts of the arrival of the harlequin ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), in Britain

Biocontrol Science and Technology (2005) 15, 859-866
H.E. Roy, J. Baverstock, K. Chamberlain and J.K. Pell (2005)
Do aphids infected with entomopathogenic fungi continue to produce and respond to alarm pheromone?

Biocontrol Science and Technology (2001) 11, 99-110
H.E. Roy, J.K. Pell and P.G. Alderson (2001)
Targeted dispersal of the aphid pathogenic fungus Erynia neoaphidis by the aphid predator Coccinella septempunctata

Biocontrol Science and Technology (2000) 10, 737-752
H.E. Roy and J.K. Pell (2000)
Interactions between entomopathogenic fungi and other natural enemies: Implications for biological control