Interspecific aggression in colonies of the slave-making ant Harpagoxenus sublaevis Jürgen HeinzeDiethe OrtiusBert Hölldobler OriginalPaper Pages: 75 - 83
Larval behavior of predacious sister-species: orientation, molting site, and survival in Chrysopa Lindsey R. MilbrathMaurice J. TauberCatherine A. Tauber OriginalPaper Pages: 85 - 90
Social synchronization of the activity rhythms of honeybees within a colony Brigitte FrischNikolaus Koeniger OriginalPaper Pages: 91 - 98
Reproductive competition in queenless honey bee colonies (Apis mellifera L.) Robert E. Page Jr.Gene E. Robinson OriginalPaper Pages: 99 - 107
Inter-colonial selection for the maintenance of cooperative breeding in the ant Pristomyrmex pungens: a laboratory experiment Kazuki Tsuji OriginalPaper Pages: 109 - 113
Phenotype-dependent arrival time and its consequences in a migratory bird Anders Pape Møller OriginalPaper Pages: 115 - 122
Sperm transfer and storage in relation to sperm competition in Callosobruchus maculatus Paul Eady OriginalPaper Pages: 123 - 129
Philopatry and mother-daughter associations in bushy-tailed woodrats: space use and reproductive success Richard A. MosesJohn S. Millar OriginalPaper Pages: 131 - 140
Male-male association patterns and female proximity in the guppy, Poecilia reticulata Lee Allan DugatkinRobert Craig Sargent OriginalPaper Pages: 141 - 145