1. Perspektiven für Wissenschaft und Forschung in den neuen Ländern

   • W. Krull

   OriginalPaper Pages: 49 - 59

2. Biosemiotics —a paradigm of biology

   • J. Eder
   • H. Rembold

   OriginalPaper Pages: 60 - 67

3. Forschung unter reduzierter Schwerkraft

   • D. Volkmann
   • A. Sievers

   OriginalPaper Pages: 68 - 74

4. Upper amazon channel migration

   • R. Kalliola
   • J. Salo
   • W. A. Danjoy Arias

   Short Communications Pages: 75 - 79

5. Two-dimensional isolectin patterns of the lectins fromViscum album L. (mistletoe)

   • M. Schink
   • D. Moser
   • F. Mechelke

   Short Communications Pages: 80 - 81

6. Azadirachtin a interferes with control of serotonin pools in the neuroendocrine system of locusts

   • S. Banerjee
   • H. Rembold

   Short Communications Pages: 81 - 84

7. Wing reduction in ant queens from arid habitats

   • A. Tinaut
   • J. Heinze

   Short Communications Pages: 84 - 85

8. Eusociality in the beetleAustroplatypus incompertus (Coleoptera: Curculionidae)

   • D. S. Kent
   • J. A. Simpson

   Short Communications Pages: 86 - 87

9. Fractal analysis of search behavior in ants

   • V. Fourcassié
   • D. Coughlin
   • J. F. A. Traniello

   Short Communications Pages: 87 - 89

10. Risk shift between males and females in the pair-forming behavior of bushcrickets

    • K. -G. Heller

    Short Communications Pages: 89 - 91

11. Buchbesprechungen

    • L. Jaenicke

    BookReview Pages: 92 - 93

12. Naturwissenschaften Aktuell

    News Pages: 94 - 96