%0 Generic %D 1992 %T A Review of the Likely Causal Pathways Relating the Reduced Density of Breeding Dippers Cinclus-Cinclus to the Acidification of Upland Streams %A Tyler, S.J. %A Ormerod, S.J. %B Environmental Pollution %V 78 %P 49-55 %0 Generic %D 1989 %T Long-term change in the suitability of welsh streams for dippers Cinclus cinclus as a result of acidification and recovery: A modelling study. %A Ormerod, S.J. %A Tyler, S.J. %B Environmental Pollution %V 62 %P 171-182 %G eng