@article {663, title = {Biological significance of UK critical load exceedance estimates for flowing waters: assessments of dipper Cinclus cinclus populations in Scotland}, journal = {Journal of Applied Ecology }, volume = {33}, year = {1996}, pages = {1065-1076}, author = {Logie, J.W. and Bryant, D.M. and Howell, D.l. and Vickery, J.A.} } @article {662, title = {Effects of Stream Acidity on Non-Breeding Dippers Cinclus- Cinclus in the South-Central Highlands of Scotland}, journal = {Aquatic Conservation-Marine and Freshwater Ecosystems }, volume = {5}, year = {1995}, pages = {25-35}, author = {Logie, J.W.} }