%0 Generic %D 1990 %T Decline of the natterjack toad Bufo clamita in Britain: Paleoecological, documentary and experimental evidence for breeding site acidification %A Beebee, T.J.C. %A Flower, R.J. %A Stevenson, A.C. %A Patrick, S.T. %A Appleby, P.G. %A Fletcher, C. %A Marsh, C. %A Natkanski, J. %A Rippey, B. %A Batterby, R. %B Biological Conservation %V 53 %P 1-20