1. The ‘paradox’ of polyembryony: A review of the cases and a hypothesis for its evolution

   • SEAN F. Craig
   • LAWRENCE B. Slobodkin
   • CHRISTIANE H. Biermann

   OriginalPaper Pages: 127 - 143

2. To mark the host or the patch: Decisions of a parasitoid searching for concealed host larvae

   • THOMAS S. Hoffmeister
   • BERNARD D. Roitberg

   OriginalPaper Pages: 145 - 168

3. Maternal effects and additive genetic inheritance in the collared lemming Dicrostonyx groenlandicus

   • RUDY Boonstra
   • M. Hochachka

   OriginalPaper Pages: 169 - 182

4. The ecology of diet expansion in a seed-feeding beetle: Pre-existing variation, rapid adaptation and maternal effects?

   • CHARLES W. Fox
   • JAN A. Nilsson
   • TIMOTHY A. Mousseau

   OriginalPaper Pages: 183 - 194

5. The relationship between geographic area and the latitudinal gradient in species richness in New World birds

   • TIM M. Blackburn
   • KEVIN J. Gaston

   OriginalPaper Pages: 195 - 204

6. The effect of temperature on sex ratio in the isopod Porcellionides pruinosus: Environmental sex determination or a by-product of cytoplasmic sex determination?

   • THIERRY Rigaud
   • DELPHINE Antoine
   • PIERRE Juchault

   OriginalPaper Pages: 205 - 215

7. Covariation of sexual dichromatism and plumage colours in lekking and non-lekking birds: A comparative analysis

   • ROBERT Bleiweiss

   OriginalPaper Pages: 217 - 235

8. Unequal maternal investment in offspring quality in relation to predation risk

   • JOHANNA Mappes
   • TAPIO Mappes
   • TIINA Lappalainen

   OriginalPaper Pages: 237 - 243

9. Effects of inbreeding depression on relatedness and optimal sex ratios

   • JACO M. Greeff
   • PETER D. Taylor

   OriginalPaper Pages: 245 - 247