1. Effects of insecticide use on breeding birds in Christmas tree plantations in Quebec

   • Guy Rondeau
   • Jean-Luc Desgranges

   Papers Pages: 281 - 298

2. Effects of pH and aluminium on the growth and feeding behaviour of smooth and palmate newt larvae

   • L. D. Brady
   • R. A. Griffiths

   Papers Pages: 299 - 306

3. Effects of a new molt-inducing insecticide, tebufenozide, on zooplankton communities in lake enclosures

   • David P. Kreutzweiser
   • David R. Thomas

   Papers Pages: 307 - 328

4. Immune parameters of plaice, Pleuronectes platessa, L. along a sewage sludge gradient in the Firth of Clyde, Scotland

   • Christopher J. Secombes
   • Ann White
   • Dominic F. Houlihan

   Papers Pages: 329 - 340