1. Diet niche relationships among North American grassland and shrubsteppe birds

   • John A. Wiens
   • John T. Rotenberry

   OriginalPaper Pages: 253 - 292

2. Social organisation and interspecific interactions in two sympatric species of Ranidella (Anura)

   • Ralph C. Mac Nally

   OriginalPaper Pages: 293 - 306

3. Herbivore exploitation of a fugitive plant species: Local survival and extinction of the Cinnabar Moth and Ragwort in a heterogeneous environment

   • E. van der Meijden

   OriginalPaper Pages: 307 - 323

4. Foraging strategies of caterpillars

   • Bernd Heinrich

   OriginalPaper Pages: 325 - 337

5. Population density and energetics of lizards on a tropical island

   • Albert F. Bennett
   • George C. Gorman

   OriginalPaper Pages: 339 - 358

6. Factors affecting the distribution of lumbricids (Oligochaeta) in associations at peat and mineral sites in northern England

   • V. Standen

   OriginalPaper Pages: 359 - 374

7. Energy budgets do balance—A comment on a paper by Wightman and Rogers

   • Göran I. Ågren
   • Björn Axelsson

   OriginalPaper Pages: 375 - 376