Colony choice in birds: models based on temporally invariant site quality Charles R. BrownBruce Rannala OriginalPaper Pages: 221 - 228
Specificity of odour-mediated avoidance of competition in Drosophila parasitoids Arne JanssenJacques J. M. van AlphenKees Bakker OriginalPaper Pages: 229 - 235
Intraspecific hyperparasitism in a primary hymenopteran parasitoid J. van BaarenG. BoivinJ. P. NĂ©non OriginalPaper Pages: 237 - 242
Inter-specific variation in anti-predator behavior in sympatric species of kangaroo rat Jan A. RandallSusan M. HatchEvon R. Hekkala OriginalPaper Pages: 243 - 250
Culturally correct song dialects are correlated with male age and female song preferences in wild populations of brown-headed cowbirds Adrian L. O'LoghlenStephen I. Rothstein OriginalPaper Pages: 251 - 259
Effects of risks of sperm competition on the numbers of eupyrene and apyrene sperm ejaculated by the moth Plodia interpunctella (Lepidoptera: Pyralidae) Penny A. CookMatthew J. G. Gage OriginalPaper Pages: 261 - 268
Division of labour in a crisis: task allocation during colony emigration in the ant Leptothorax unifasciatus (Latr.) Ana B. Sendova-FranksNigel R. Franks OriginalPaper Pages: 269 - 282
Why do Varroa mites invade worker brood cells of the honey bee despite lower reproductive success? Willem J. BootMinus van BaalenMaurice W. Sabelis OriginalPaper Pages: 283 - 289