The Importance of Human Ecology at the Threshold of the Next Millennium: How Can Population Growth Be Stopped? W. Nentwig Review Article Pages: 411 - 421
Intra- and Intercellular Communication Systems in Ciliates H.-D. GörtzH.-W. KuhlmannA. Miyake Review Article Pages: 422 - 434
Effects of Serotonergic and Opioidergic Drugs on Escape Behaviors and Social Status of Male Crickets V. E. DyakonovaF.-W. SchürmannD. A. Sakharov Short Communications Pages: 435 - 437
Heat Shielding: A Novel Method of Colonial Thermoregulation in Honey Bees Philip T. StarksDavid C. Gilley Short Communications Pages: 438 - 440
Radioluminescence Dating: A New Tool for Quaternary Geology and Archaeology T. TrautmannA. DietrichM. R. Krbetschek Short Communication Pages: 441 - 444
Identification of Four Distinct Subunit Types in the Unique 6×6 Hemocyanin of the Centipede Scutigera coleoptrata W. GebauerJ. Markl Short Communication Pages: 445 - 447
Persistence of Eclosion Rhythm in Drosophila melanogaster After 600 Generations in an Aperiodic Environment V. SheebaV. K. SharmaA. Joshi Short Communication Pages: 448 - 449
Rhizophora mangle (Rhizophoraceae) Triterpenoids with Insecticidal Activity L. A. D. Williams Short Communication Pages: 450 - 452
He-Ne Laser Light Induced Changes in the State of Chromatin in Human Cells Yury G. Shckorbatov Short Communication Pages: 452 - 453