1. Geocybernetics: Controlling a Complex Dynamical System Under Uncertainty

   • H.-J. Schellnhuber
   • J. Kropp

   Review Articles Pages: 411 - 425

2. Ecology of Host Parasite Relationships in the Baltic Sea

   • C. Dieter Zander

   REVIEW ARTICLES Pages: 426 - 436

3. Structure and Function of Voltage-Gated Ion Channels

   • Heinrich Terlau
   • Walter Stühmer

   REVIEW ARTICLES Pages: 437 - 444

4. Mutualistic Benefits Generate an Unequal Distribution of Risky Activities Among Unrelated Group Members

   • Penelope F. Kukuk
   • Seamus A. Ward
   • Amy Jozwiak

   SHORT COMMUNICATIONS Pages: 445 - 449

5. Plant Wax n-Alkanes Trapped in Soil Humin by Noncovalent Bonds

   • Eric Lichtfouse
   • Patrick Wehrung
   • Pierre Albrecht

   SHORT COMMUNICATIONS Pages: 449 - 452

6. Microinjection of Neuroactive Substances into Brain Neuropil Controls Stridulation in the Cricket Gryllus bimaculatus (de Geer)

   • Beate Wenzel
   • Norbert Elsner
   • Berthold Hedwig

   SHORT COMMUNICATIONS Pages: 452 - 454

7. Effect of Aliphatic Esters on Ovary Development of Queenless Bees (Apis mellifera L.)

   • A. Mohammedi
   • A. Paris
   • Y. Le Conte

   SHORT COMMUNICATIONS Pages: 455 - 458

8. Honey Bees Fail To Update Their Solar Ephemerides After a Displacement

   • William F. Towne
   • Wolfgang H. Kirchner

   SHORT COMMUNICATIONS Pages: 459 - 463

9. Strategiefonds mobilisiert innovatives Potential

   AKTUELL Pages: 464 - 466