Grazing

Brys, R. & Jacquemyn, H. (2009) Biological Flora of the British Isles: Primula veris L. Journal of Ecology, 97, 581–600.

Brereton, T.M., Warren, M.S., Roy, D.B. & Stewart, K. (2008) The changing status of the Chalkhill Blue butterfly Polyommatus coridon in the UK: the impacts of conservation policies and environmental factors. Journal of Insect Conservation, 12, 629–638.