González-Megías, A., Menéndez, R., Roy, D.B., Brereton, T.M. & Thomas, C.D. (2008) Changes in the composition of British butterfly assemblages over two decades. Global Change Biology, 14, 1464-1474.
distribution
Finnie, T.J.R., Preston, C.D., Hill, M.O., Uotila, P. & Crawley, M.J. (2007) Floristic elements in European vascular plants: an analysis based on Atlas Florae Europaeae. Journal of Biogeography, 34, 1848-1872.
Mountford, J.O., Roy, D.B., Cooper, J.M., Manchester, S.J., Swetnam, R.D., Warman, E.A. & Treweek, J.R. (2006) Methods for targeting the restoration of grazing marsh and wet grassland communities at a national, regional and local scale. Journal for Nature Conservation, 14, 46-66.
Braschler, B. & Hill, J.K. (2007) Role of larval host plants in the climate-driven range expansion of the butterfly Polygonia c-album. Journal of Animal Ecology, 76, 415-423.