1. A new technique to identify and assess the dispersion of eggs of individual brood parasites

   • Robert C. Fleischer

   OriginalPaper Pages: 91 - 99

2. Sexual selection and variation in reproductive strategy in male yellow warblers (Dendroica petechia)

   • Michael V. Studd
   • Raleigh J. Robertson

   OriginalPaper Pages: 101 - 109

3. The social organization of the common vampire bat

   • Gerald S. Wilkinson

   OriginalPaper Pages: 111 - 121

4. The social organization of the common vampire bat

   • Gerald S. Wilkinson

   OriginalPaper Pages: 123 - 134

5. The choice of two prey types that minimises the probability of starvation

   • Alasdair Houston
   • John McNamara

   OriginalPaper Pages: 135 - 141

6. Social evolution and its correlates in bees of the subgenus Evylaeus (Hymenoptera; Halictidae)

   • Laurence Packer
   • Gerd Knerer

   OriginalPaper Pages: 143 - 149

7. Thermal ecology, size effects, and the origins of communal behaviour in Cerceris wasps

   • P. G. Willmer

   OriginalPaper Pages: 151 - 160

8. Changes in the activity budgets of yellow baboons (Papio cynocephalus) during sexual consortships

   • K. L. R. Rasmussen

   OriginalPaper Pages: 161 - 170

9. The migrating herdsman Dolichoderus (Diabolus) cuspidatus: an ant with a novel mode of life

   • Ulrich Maschwitz
   • Heinz Hänel

   OriginalPaper Pages: 171 - 184

10. Dominance behaviour, body weight and fat variations, and partial migration in European blackbirds Turdus merula

    • Per Lundberg

    OriginalPaper Pages: 185 - 189