Male butterfly investment in successive ejaculates in relation to mating system C. J. BissoondathChrister Wiklund Pages: 285 - 292
Use of stridulation in foraging leaf-cutting ants: mechanical support during cutting or short-range recruitment signal? F. RocesBert Hölldobler Pages: 293 - 299
Paternal care in the European starling, Sturnus vulgaris: nestling provisioning M. I. SandellHenrik G. SmithMåns Bruun Pages: 301 - 309
Nestmate recognition in three species of stenogastrine wasps (Hymenoptera, Vespidae) R. CervoFrancesca R. DaniStefano Turillazzi Pages: 311 - 316
Sexual ornamentation, condition, and immune defence in the house sparrow Passer domesticus A. P. MøllerR. T. KimballJ. Erritzøe Pages: 317 - 322
Regional differences in behaviour in bank voles (Clethrionomys glareolus): dyadic encounters Lennart Hansson Pages: 331 - 334
Low roost-site fidelity in pallid bats: associated factors and effect on group stability S. E. Lewis Pages: 335 - 344
Permanent exposure versus facultative concealment of sexual traits: an experimental study in the house sparrow José P. Veiga Pages: 345 - 352