Availability of receptive females at the mating place and mating chances of males in the dragonfly Aeschna cyanea Heinrich Kaiser OriginalPaper Pages: 1 - 7
Role of ovaries and ecdysteroids in dominance hierarchy establishment among foundresses of the primitively social wasp, Polistes gallicus Peter-Frank RöselerIngeborg RöselerAlain Strambi OriginalPaper Pages: 9 - 13
Energy investment and respiration in queens and males of Lasius niger (Hymenoptera: Formicidae) J. J. BoomsmaJ. A. Isaaks OriginalPaper Pages: 19 - 27
Worker reproduction in the ponerine ant Ophthalmopone berthoudi: an alternative form of eusocial organization Christian PeetersRobin Crewe OriginalPaper Pages: 29 - 37
Fighting and assessment in the yellow-rumped cacique (Cacicus cela) S. K. Robinson OriginalPaper Pages: 39 - 44
Colony founding, queen dominance and oligogyny in the Australian meat ant Iridomyrmex purpureus Bert HölldoblerNorman F. Carlin OriginalPaper Pages: 45 - 58
Parental investment decision rules: a test in bluegill sunfish Ronald M. ColemanMart R. GrossRobert Craig Sargent OriginalPaper Pages: 59 - 66
Diphasy in the advertisement calls of Geocrinia laevis (Anura: Leptodactylidae): vocal responses of males during field playback experiments P. A. HarrisonM. J. Littlejohn OriginalPaper Pages: 67 - 73
Can pigeons be fooled about the actual release site position by presenting them information from another site? J. Kiepenheuer OriginalPaper Pages: 75 - 82