1. The special role of male Cebus monkeys in predation avoidance and its effect on group composition

   • C. P. van Schaik
   • M. A. van Noordwijk

   OriginalPaper Pages: 265 - 276

2. Supplanting by olive baboons: dominance rank difference and resource value

   • Julie A. Johnson

   OriginalPaper Pages: 277 - 283

3. Great tits choose between food and proximity to a mate

   • Ruth Mace

   OriginalPaper Pages: 285 - 290

4. Colony performance in honeybees (Apis mellifera capensis Esch.) depends on the proportion of subordinate and dominant workers

   • Elke Hillesheim
   • N. Koeniger
   • R. F. A. Moritz

   OriginalPaper Pages: 291 - 296

5. Gulls and plovers: age-related differences in kleptoparasitism among black-headed gulls (Larus ridibundus)

   • L. S. Hesp
   • C. J. Barnard

   OriginalPaper Pages: 297 - 304

6. A South East Asian ponerine ant of the genus Leptogenys (Hym., Form.) with army ant life habits

   • U. Maschwitz
   • S. Steghaus-Kovac
   • H. Hänel

   OriginalPaper Pages: 305 - 316

7. Genetic determination of nectar foraging, pollen foraging, and nest-site scouting in honey bee colonies

   • Gene E. Robinson
   • Robert E. Page Jr.

   OriginalPaper Pages: 317 - 323

8. Function of male courtship vocalizations in red-winged blackbirds

   • W. A. Searcy

   OriginalPaper Pages: 325 - 331

9. Territoriality among male red-winged blackbirds

   • L. D. Beletsky
   • G. H. Orians

   OriginalPaper Pages: 333 - 339