1. Variation in zonal recovery in four Talitrus saltator populations from different coastlines: a comparison of orientation in the field and in an experimental arena

   • Claudia Borgioli
   • Giovanni Maria Marchetti
   • Felicitas Scapini

   ORIGINAL ARTICLE Pages: 79 - 85

2. Asymmetry in a visual signaling character and sexual selection in a wolf spider

   • George W. Uetz
   • Elizabeth I. Smith

   ORIGINAL ARTICLE Pages: 87 - 93

3. Mating expenditures reduced via female sex pheromone modulation in the primitively eusocial halictine bee, Lasioglossum (Evylaeus) malachurum (Hymenoptera: Halictidae)

   • Manfred Ayasse
   • Wolf Engels
   • Wittko Francke

   ORIGINAL ARTICLE Pages: 95 - 106

4. Exposure to strange adults does not cause pregnancy disruption or infanticide in the gray-tailed vole

   • Helen M. de la Maza
   • Jerry O. Wolff
   • Amber Lindsey

   ORIGINAL ARTICLE Pages: 107 - 113

5. Testis size variation in the greenfinch Carduelis chloris : relevance for some recent models of sexual selection

   • Juha Merilä
   • Ben C. Sheldon

   ORIGINAL ARTICLE Pages: 115 - 123

6. Regulation of reproduction by dominant workers in bumblebee (Bombus terrestris) queenright colonies

   • Guy Bloch
   • Abraham Hefetz

   ORIGINAL ARTICLE Pages: 125 - 135

7. Vigilance in wild Thomas's langurs (Presbytis thomasi ): the importance of infanticide risk

   • Romy Steenbeek
   • Ruben C. Piek
   • Jan A. R. A. M. van Hooff

   ORIGINAL ARTICLE Pages: 137 - 150

8. Fertility signaling in queens of a North American ant

   • Diethe Ortius
   • Jürgen Heinze

   ORIGINAL ARTICLE Pages: 151 - 159