Research and Publications
(2010)
Biological Records Centre Annual Report 2005-2006. Joint Nature Conservation Committee, Peterborough.
(2006) (2013)
(2012)
(2007)
The spread of the harlequin ladybird in Cambridgeshire and Huntingdonshire. Nature in Cambridgeshire, 49, 55-57.
(2007) (2007)
The most northerly record of the harlequin ladybird (Col., Coccinellidae) in the British Isles. Entomologist's Monthly Magazine, 145, 43-44.
(2009) (2008)
(2007)
(2007)
Harmonia axyridis in Europe: spread and distribution of a non-native coccinellid. BioControl, 53, 5-21.
(2008) (2008)
The harlequin ladybird, Harmonia axyridis, reaches Scotland. Entomologists’ Record and Journal of Variation, 120, 42-43.
(2008) The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology. Biological Invasions, 18, 997-1044.
(2016) 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.
(2012) The contribution of volunteer recorders to our understanding of biological invasions. Biological Journal of the Linnean Society, 115, 678–689.
(2015) 
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. pp. 55-67. Springer Netherlands.
(2008) Ladybirds (Coccinellidae) Of Britain And Ireland. Field Studies Council, Shrewsbury.
(2011)