1. Asher J, Warren MS, Fox R, Harding PT, Jeffcoate G, Jeffcoate S (2001) The millennium atlas of butterflies of Britain and Ireland. Oxford University Press, Oxford
2. Botham MS, Brereton TM, Middlebrook I, Cruickshanks KL, Harrower C, Beckmann B, Roy DB (2008) United Kingdom butterfly monitoring scheme report for 2008. CEH Wallingford
3. Brook S, McCracken M, Bulman CR, Camp P, Bourn NAD (2007) Post-burn bracken Pteridium aquilinum control to manage habitat for the heath fritillary butterfly Mellicta athalia on Exmoor, Somerset, England. Conserv Evid 4:81–87
4. Cowley MJR, Thomas CD, Thomas JA, Warren MS (1999) Flight areas of British butterflies: assessing species status and decline. Proc R Soc 266:1587–1592
5. Davies ZG, Wilson RJ, Brereton TM, Thomas CD (2005) The re-expansion and improving status of the silver-spotted skipper butterfly (Hesperia comma) in Britain: a metapopulation success story. Biol Conserv 124:189–198