1. Colony-level selection effects on individual and colony foraging task performance in honeybees, Apis mellifera L.

   • J. H. Fewell
   • R.E. Page Jr

   Original Article Pages: 173 - 181

2. Dispersal behaviour in a subsocial spider: group conflict and the effect of food availability

   • K. W. Kim

   Original Article Pages: 182 - 187

3. Testing the assumptions of conditional handicap theory: costs and condition dependence of a sexually selected trait

   • J. S. Kotiaho

   Original Article Pages: 188 - 194

4. Infanticide by resident males and female counter-strategies in wild Japanese macaques (Macaca fuscata)

   • J. Soltis
   • R. Thomsen
   • O. Takenaka

   Original Article Pages: 195 - 202

5. Lifetime mating success, sexual selection and life history of fallow bucks (Dama dama)

   • A. G. McElligott
   • T. J. Hayden

   Original Article Pages: 203 - 210

6. Sexual selection on mature male parr of masu salmon (Oncorhynchus masou): does sneaking behavior favor small body size and less-developed sexual characters?

   • Y. Koseki
   • K. Maekawa

   Original Article Pages: 211 - 217

7. Electrosensory prey detection in the African sharptooth catfish, Clarias gariepinus (Clariidae), of a weakly electric mormyrid fish, the bulldog (Marcusenius macrolepidotus)

   • S. Hanika
   • B. Kramer

   Original Article Pages: 218 - 228

8. Are nest characters of importance when choosing a male in the fifteen-spined stickleback (Spinachia spinachia)?

   • S. Östlund-Nilsson

   Original Article Pages: 229 - 235

9. Female-biased immigration and male peace-keeping in groups of the shell-dwelling cichlid fish Neolamprologus multifasciatus

   • C. Schradin
   • J. Lamprecht

   Original Article Pages: 236 - 242

10. Call matching in the quacking frog (Crinia georgiana)

    • H. C. Gerhardt
    • J. D. Roberts
    • J. J. Schwartz

    Original Article Pages: 243 - 251