1. Absence of sex-differential brood raising by workers in Diacamma sp. from Japan

   • Kensuke Nakata

   Original article Pages: 223 - 227

2. Why is the coral-reef fish Valenciennea strigata (Gobiidae) monogamous?

   • Robert H. Reavis
   • George W. Barlow

   Original article Pages: 229 - 237

3. Bushcricket song structure and predation by the acoustically orienting parasitoid fly Therobia leonidei (Diptera: Tachinidae: Ormiini)

   • Gerlind U. C. Lehmann
   • Klaus-Gerhard Heller

   Original article Pages: 239 - 245

4. An experimental study of pleometrotic colony founding in the fire ant, Solenopsis invicta : what is the basis for association?

   • Walter R. Tschinkel

   Original article Pages: 247 - 257

5. Begging behavior and food acquisition by brown-headed cowbird nestlings

   • Donald C. Dearborn

   Original article Pages: 259 - 270

6. The nature and frequency of social interactions among free-living prairie voles (Microtus ochrogaster)

   • Betty McGuire
   • Lowell L. Getz

   Original article Pages: 271 - 279

7. Extra-pair paternity in the monogamous Alpine marmot revealed by nuclear DNA microsatellite analysis

   • Benoît Goossens
   • Laurent Graziani
   • Dominique Allainé

   Original article Pages: 281 - 288

8. Egg adoption can explain joint egg-laying in common eiders

   • Gregory J. Robertson

   Original article Pages: 289 - 296

9. Pigeon homing: sun compass use in the southern hemisphere

   • Roswitha Wiltschko
   • Cordula Haugh
   • Wolfgang Wiltschko

   Original article Pages: 297 - 300

10. High relatedness and inbreeding in two species of haplodiploid eusocial thrips (Insecta: Thysanoptera) revealed by microsatellite analysis

    • Thomas W. Chapman
    • Bernard Crespi

    Original article Pages: 301 - 306

11. Non-aggressive mate guarding by the blue-footed booby: a balance of female and male control

    • Marcela Osorio-Beristain
    • Hugh Drummond

    Original article Pages: 307 - 315

12. Repellent scent-marking of flowers by a guild of foraging bumblebees (Bombus spp.)

    • Jane C. Stout
    • Dave Goulson
    • John A. Allen

    Original article Pages: 317 - 326

13. Dominance and polyethism in the eusocial wasp Mischocyttarus mastigophorus (Hymenoptera: Vespidae)

    • Sean O'Donnell

    Original article Pages: 327 - 331

14. Shoal composition, body size and foraging in sticklebacks

    • Nina Peuhkuri

    Original article Pages: 333 - 337

15. Variation in homeward orientation performance in the sleepy lizard (Tiliqua rugosa): effects of sex and reproductive period

    • M. J. Freake

    Original article Pages: 339 - 344