Differential reproduction in multiple-queen colonies of the fire ant Solenopsis invicta (Hymenoptera: Formicidae) K. G. Ross OriginalPaper Pages: 341 - 355
Allocation of reproductive effort in Mus domesticus: responses of offspring sex ratio and quality to social density and food availability S. L. WrightC. B. CrawfordJudith L. Anderson OriginalPaper Pages: 357 - 365
Clutch size and the cost of incubation in the Bengalese finch (Lonchura striata var. domestica) Ronald M. ColemanRobin D. Whittall OriginalPaper Pages: 367 - 372
Courtship feeding in katydids benefits the mating male's offspring D. T. Gwynne OriginalPaper Pages: 373 - 377
Genetic evidence of multiple parentage in broods of cliff swallows Charles R. BrownMary Bomberger Brown OriginalPaper Pages: 379 - 387
Is there any influence of magnetic or astrophysical fields on the circadian rhythm of honeybees? M. F. Neumann OriginalPaper Pages: 389 - 393
Do guppies play TIT FOR TAT during predator inspection visits? L. A. Dugatkin OriginalPaper Pages: 395 - 399
Relatedness among nestmates in a primitively social wasp, Cerceris antipodes (Hymenoptera: Sphecidae) D. B. McCorquodale OriginalPaper Pages: 401 - 406