1. Geleitwort

   • K. v. Frisch

   EditorialNotes Pages: 1 - 2

2. Recruitment behavior, home range orientation and territoriality in harvester ants, Pogonomyrmex

   • Bert Hölldobler

   OriginalPaper Pages: 3 - 44

3. Agonistic behaviour and electric signalling in a mormyrid fish, Gnathonemus petersii

   • Bernd Kramer
   • Richard Bauer

   OriginalPaper Pages: 45 - 61

4. The organization of colony defense in the ant Pheidole dentata mayr (Hymenoptera: Formicidae)

   • Edward O. Wilson

   OriginalPaper Pages: 63 - 81

5. Defensive behavior of a termite (Nasutitermes exitiosus)

   • Thomas Eisner
   • Irmgard Kriston
   • Daniel J. Aneshansley

   OriginalPaper Pages: 83 - 125