Effects of quality of resource and fertilization status on some fitness traits in the two-spotted spider mite, Tetranychus urticae Koch Dana L. WrenschS. S. Y. Young OriginalPaper Pages: 259 - 267
Circadian rhythms of locomotor activity in captive birds and mammals: Their variations with season and latitude Serge DaanJürgen Aschoff ReviewPaper Pages: 269 - 316
The dependence of calling activity in Rana esculenta Linné 1758 and Rana ridibunda Pallas 1771 upon exogenous factors (Ranidae, Anura) Hans-Joachim Obert OriginalPaper Pages: 317 - 328
Temperature regulation and water requirements of the monk parakeet, Myiopsitta monachus Wesley W. WeathersDonald F. Caccamise OriginalPaper Pages: 329 - 342
The food consumption of a wolf spider, Geolycosa godeffroyi (Araneae: Lycosidae), in the Australian Capital Territory W. F. Humphreys OriginalPaper Pages: 343 - 358