1. Reproductive success of solitary and communal Philoponella oweni (Araneae: Uloboridae)

   • Deborah R. Smith

   OriginalPaper Pages: 149 - 154

2. Variance in male and female reproductive success in a harem-polygynous mammal, the black-tailed prairie dog (Sciuridae: Cynomys ludovicianus)

   • John L. Hoogland
   • David W. Foltz

   OriginalPaper Pages: 155 - 163

3. Fieldfare (Turdus pilaris) breeding success in relation to colony size, nest position and association with Merlins (Falco columbarius)

   • Christer G. Wiklund

   OriginalPaper Pages: 165 - 172

4. The loading effect in central place foraging wheatears (Oenanthe oenanthe L.)

   • Allan Carlson
   • Juan Moreno

   OriginalPaper Pages: 173 - 183

5. Territorial defence in the great tit (Parus major): Do residents always win?

   • John R. Krebs

   OriginalPaper Pages: 185 - 194

6. Intragroup dynamics of a cooperative breeder: An anlysis of reproductive roles in the acorn woodpecker

   • Nancy E. Joste
   • Walter D. Koenig
   • Frank A. Pitelka

   OriginalPaper Pages: 195 - 201

7. Mother-pup separation and adoption in northern elephant seals

   • Marianne L. Riedman
   • Burney J. Le Boeuf

   OriginalPaper Pages: 203 - 215

8. Differential attraction of females to dominant males: Olfactory discrimination and mating preference in the brown lemming (Lemmus trimucronatus)

   • U. William Huck
   • Edwin M. Banks

   OriginalPaper Pages: 217 - 222

9. On the evolution of male workers in the Hymenoptera

   • Stephen H. Bartz

   OriginalPaper Pages: 223 - 228