1. Multiple regression analysis of the sources of variation in orientation of two sympatric sandhoppers, Talitrus saltator and Talorchestia brito, from an exposed Mediterranean beach

   • Felicita Scapini
   • Andrea Aloia
   • Giovanni M.Marchetti

   Original Article Pages: 403 - 414

2. How honeybees (Apis mellifera L.) change their broodcare behaviour in response to non-foraging conditions and poor pollen conditions

   • T. Schmickl
   • K. Crailsheim

   Original Article Pages: 415 - 425

3. Tests of the mate-guarding hypothesis for social monogamy: does population density, sex ratio, or female synchrony affect behavior of male snapping shrimp (Alpheus angulatus)?

   • Lauren M. Mathews

   Original Article Pages: 426 - 432

4. Sexual conflict, sexual selection and sperm competition in the spawning decisions of bitterling, Rhodeus sericeus

   • Carl Smith
   • Alex Douglas
   • Pavel Jurajda

   Original Article Pages: 433 - 439

5. Costs of courtship and mating in a sexually cannibalistic orb-web spider: female mating strategies and their consequences for males

   • M. Herberstein
   • J. Schneider
   • M. Elgar

   Original Article Pages: 440 - 446

6. Laying date and laying sequence influence the sex ratio of crimson rosella broods

   • Elizabeth A. Krebs
   • David J. Green
   • Richard Griffiths

   Original Article Pages: 447 - 454

7. Trading-off risks from predators and from aggressive hosts

   • John L. Quinn
   • Yakov Kokorev

   Original Article Pages: 455 - 460

8. Chemical rival recognition decreases aggression levels in male Iberian wall lizards, Podarcis hispanica

   • Pilar López
   • José Martín

   Original Article Pages: 461 - 465

9. Seeing is believing: information about predators influences yellowhammer behavior

   • Ineke T. van der Veen

   Original Article Pages: 466 - 471

10. Origin of male-biased sex allocation in orphaned colonies of the termite, Coptotermes lacteus

    • Yves Roisin
    • Michael Lenz

    Original Article Pages: 472 - 479

11. Higher-level evolution of intraspecific flock-feeding in birds

    • Guy Beauchamp

    Original Article Pages: 480 - 487

12. Colony defense and behavioral differentiation in the eusocial shrimp Synalpheus regalis

    • Emmett J. Duffy
    • Cheryl L. Morrison
    • Kenneth S. Macdonald

    Original Article Pages: 488 - 495