Roy, D.B. (2006) The Effects Of Climate And Habitat On Butterfly Populations. University of Southampton.

Roy, D.B., Rothery, P. & Brereton, T.M. (2005) The Design Of A Systematic Survey Scheme To Monitor Butterflies In The United Kingom. In: Studies On The Ecology And Conservation Of Butterflies In Europe, Vol 1. General Concepts And Case Studies, Pp. 102-105. Kuhn, E., Fieldmann, R. Thomas, J.a. And Se. Pensoft, Sofia.

Roy, D.B., Rothery, P., Moss, D., Pollard, E. & Thomas, J.A. (2001) Butterfly numbers and weather: predicting historical trends in abundance and the future effects of climate change. Journal of Animal Ecology, 70, 201-217.

Roy, D.B., Rothery, P. & Brereton, T.M. (2007) Reduced-effort schemes for monitoring butterfly populations. Journal of Applied Ecology, 44, 993-1000.

Roy, D.B. (2008) Delivering Alien Invasive Species Inventories For Europe (Daisie). Final Report For The Framework Vi Strategic Targeted Research Project Sspi-Ct-2003-511202. Centre for Ecology and Hydrology, Huntingdon.

Roy, D.B., Brereton, T.M., Cruickshanks, K.L., J. Greatorex-Davies, N., Middlebrook, I., Rothery, P. & Warren, M.S. (2008) Developing A Uk-Wide Butterfly Monitoring Scheme: Integrating The Wider Countryside. Centre for Ecology and Hydrology and Butterfly Conservation.

Roy, D.B., Oliver, T.H., Botham, M.S., Beckmann, B., Brereton, T.M., Dennis, R.L.H., Harrower, C.A., Phillimore, A.B. & Thomas, J.A. (2015) Similarities in butterfly emergence dates among populations suggest local adaptation to climate. Global Change Biology, 21, 3313-3322.