1. Effect of leaf nitrogen content of tomato plants on preference and performance of a leafmining fly

   • Oscar P. J. M. Minkenberg
   • Jo J. G. W. Ottenheim

   Original Papers Pages: 291 - 298

2. Patterns of vegetation and grasshopper community composition

   • W. P. Kemp
   • S. J. Harvey
   • K. M. O'Neill

   Original Papers Pages: 299 - 308

3. The impact of climatic factors and host density on the long-term population dynamics of vole helminths

   • Voitto Haukisalmi
   • Heikki Henttonen

   Original Papers Pages: 309 - 315

4. Countergradient variation in growth rate: compensation for length of the growing season among Atlantic silversides from different latitudes

   • David O. Conover
   • Teresa M. C. Present

   Original Papers Pages: 316 - 324

5. Positive and negative effects of herbivory on the population dynamics of Senecio jacobaea L. and Cynoglossum officinale L.

   • A. H. Prins
   • H. W. Nell

   Original Papers Pages: 325 - 332

6. Different demography of friends and strangers: an experiment on the impact of kinship and familiarity in Clethrionomys glareolus

   • H. Ylönen
   • T. Mappes
   • J. Viitala

   Original Papers Pages: 333 - 337

7. Amino acids as determinants of host preference for the xylem feeding leafhopper, Homalodisca coagulata (Homoptera: Cicadellidae)

   • Brent V. Brodbeck
   • Russell F. Mizell III
   • James H. Aldrich

   Original Papers Pages: 338 - 345

8. Foraging and predator avoidance: a test of a patch choice model with juvenile bluegill sunfish

   • Vytenis Gotceitas

   Original Papers Pages: 346 - 351

9. The effects on the plankton community of filter-feeding Sacramento blackfish, Orthodon microlepidotus

   • Stephanie Byers
   • Gary L. Vinyard

   Original Papers Pages: 352 - 357

10. Underestimation of mutual interference of predators

    • R. Arditi
    • H. R. Akçakaya

    Original Papers Pages: 358 - 361

11. Causes and consequences of sea urchin abundance and diversity in Kenyan coral reef lagoons

    • T. R. McClanahan
    • S. H. Shafir

    Original Papers Pages: 362 - 370

12. Plant-specific expression of antipredator behaviour by larval damselflies

    • Michele Dionne
    • Mari Butler
    • Carol Folt

    Original Papers Pages: 371 - 377

13. Size-selective predation by roach (Rutilus rutilus) on zebra mussel (Dreissena polymorpha): field stuides

    • A. Prejs
    • K. Lewandowski
    • A. Stańczykowska-Piotrowska

    Original Papers Pages: 378 - 384

14. Size-biased dispersal prior to breeding in a damselfly

    • Bradley R. Anholt

    Original Papers Pages: 385 - 387

15. Evidence for rapid faunal changes on islands in a man-made lake

    • W. R. J. Dean
    • W. J. Bond

    Original Papers Pages: 388 - 391

16. Stability in a multi-species assemblage of large herbivores in East Africa

    • H. H. T. Prins
    • I. Douglas-Hamilton

    Original Papers Pages: 392 - 400

17. Sexual differences in survival rates of adult pipistrelle bats (Pipistrellus pipistrellus) in South Sweden

    • Rune Gerell
    • Karin Lundberg

    Original Papers Pages: 401 - 404

18. Direct and indirect effects of predation, herbivory and surface rugosity on mussel recruitment

    • Peter S. Petraitis

    Original Papers Pages: 405 - 413

19. Parasitism rates and sex ratios of a parasitoid wasp: effects of herbivore and plant quality

    • Laurel R. Fox
    • Deborah K. Letourneau
    • Saskya Van Nouhuys

    Original Papers Pages: 414 - 419

20. Weather, microclimate, and energy costs of thermoregulation for breeding Adélie Penguins

    • M. A. Chappell
    • K. R. Morgan
    • T. L. Bucher

    Original Papers Pages: 420 - 426