The social behavior of Leptothorax allardycei (Hymenoptera, Formicidae): time budgets and the evolution of worker reproduction Blaine J. Cole OriginalPaper Pages: 165 - 173
Acoustic communication in phaneropterid bushcrickets: species-specific delay of female stridulatory response and matching male sensory time window Klaus-Gerhard HellerDagmar von Helversen OriginalPaper Pages: 189 - 198
Equality of feeding roles and the maintenance of monogamy in tree swallows David LeffelaarRaleigh J. Robertson OriginalPaper Pages: 199 - 206
Sound and vibrational signals in the dance language of the honeybee, Apis mellifera Axel MichelsenWolfgang H. KirchnerMartin Lindauer OriginalPaper Pages: 207 - 212
Radiotelemetric monitoring of heart-rate responses to song playback in blackbirds (Turdus merula) Peter DiehlHans-Wolfgang Helb OriginalPaper Pages: 213 - 219
Communication by changing signals: call switching in red-winged blackbirds L. David BeletskyB. J. HigginsGordon H. Orians OriginalPaper Pages: 221 - 229
Resource distribution, aggressive asymmetries and variable access to resources in the nectar feeding bellbird John L. CraigMurray E. Douglas OriginalPaper Pages: 231 - 240
