Effects of spermatophores on male and female monarch butterfly reproductive success Karen S. Oberhauser OriginalPaper Pages: 237 - 246
A quantitative study of worker reproduction in honey bee colonies P. Kirk Visscher OriginalPaper Pages: 247 - 254
Protandry in western cicada killer wasps, (Sphecius grandis, Hymenoptera: Sphecidae): an empirical study of emergence time and mating opportunity Jon Hastings OriginalPaper Pages: 255 - 260
Variation in copulation duration in Mnais pruinosa pruinosa Selys (Odonata: Calopterygidae) Michael T. Siva-JothyYoshitaka Tsubaki OriginalPaper Pages: 261 - 267
Multiple paternity in wild populations of the garter snake, Thamnophis sirtalis James M. SchwartzGary F. McCrackenGordon M. Burghardt OriginalPaper Pages: 269 - 273
Female choice of large males in the treefrog Hyla chrysoscelis: the importance of identifying the scale of choice Molly R. Morris OriginalPaper Pages: 275 - 281
Active mate choice at cock-of-the-rock leks: tactics of sampling and comparison Pepper W. TrailEldridge S. Adams OriginalPaper Pages: 283 - 292
Contribution of olfactory navigation and non-olfactory pilotage to pigeon homing Hans G. WallraffMichael F. Neumann OriginalPaper Pages: 293 - 302