Relatedness and sex ratio in a primitively eusocial halictine bee Laurence PackerRobin E. Owen OriginalPaper Pages: 1 - 10
Food availability, intrusion pressure and territory size: an experimental study of Anna's hummingbirds (Calypte anna) Jessica R. EberhardPaul W. Ewald OriginalPaper Pages: 11 - 18
Evolutionary consequences of non-random mating: do large males increase offspring fitness in the anuran Bufo bufo? Raymond D. Semlitsch OriginalPaper Pages: 19 - 24
Task specialization in a wild bee, Apis florea (Hymenoptera: Apidae), revealed by RFLP banding Benjamin P. OldroydH. Allen SylvesterThomas E. Rinderer OriginalPaper Pages: 25 - 30
Plasma levels of androgens and gonadal development of breeders and helpers in the bell miner (Manorina melanophrys) Aldo PoianiTerry Fletcher OriginalPaper Pages: 31 - 41
What currency do scatter-hoarding gray jays maximize? T. A. WaiteR. C. Ydenberg OriginalPaper Pages: 43 - 49
Female encounter rate and the calling behavior and mating propensity of male Requena verticalis (Orthoptera: Tettigoniidae) Geoff R. AllenWinston J. Bailey OriginalPaper Pages: 63 - 69
Alternative reproductive tactics in male common shrews: relationships between mate-searching behaviour, sperm production, and reproductive success as revealed by DNA fingerprinting P. StockleyJ. B. SearleC. S. Jones OriginalPaper Pages: 71 - 78