1. Patterns of intra- and interspecific association of gall-forming sawflies in relation to shoot size on their willow host plant

   • R. S. Fritz
   • W. S. Gaud
   • P. W. Price

   Original Papers Pages: 159 - 169

2. Effects of habitat and season on competitive interactions between roach (Rutilus rutilus) and perch (Perca fluviatilis)

   • L. Persson

   Original Papers Pages: 170 - 177

3. Insect size tactics and developmental strategies

   • T. G. Forrest

   Original Papers Pages: 178 - 184

4. The size distribution of organisms in the Celtic Sea: from bacteria to Metazoa

   • R. M. Warwick
   • I. R. Joint

   Original Papers Pages: 185 - 191

5. Dynamics of heterotrophic succession in carrion arthropod assemblages: discrete seres or a continuum of change?

   • K. Schoenly
   • W. Reid

   Original Papers Pages: 192 - 202

6. Epizooic ciliates (Vorticella sp.) compete for food with their host Daphnia longispina in a small polyhumic lake

   • P. Kankaala
   • P. Eloranta

   Original Papers Pages: 203 - 206

7. Seed mass, genotype, and density effects on growth and yield of Oenothera biennis L.

   • M. Kromer
   • K. L. Gross

   Original Papers Pages: 207 - 212

8. Biological vs. physical explanations for the non-random pattern of host occupation by a macroalga attaching to infaunal bivalve molluscs

   • R. Black
   • C. H. Peterson

   Original Papers Pages: 213 - 221

9. Determinants of photosynthetic capacity in six rainforest Piper species

   • R. L. Chazdon
   • C. B. Field

   Original Papers Pages: 222 - 230

10. Pollen carryover: experimental comparisons between morphs of Palicourea lasiorrachis (Rubiaceae), a distylous, bird-pollinated, tropical treelet

    • P. Feinsinger
    • W. H. Busby

    Original Papers Pages: 231 - 235

11. Tubes and foraging behavior in larval Chironomidae: implications for predator avoidance

    • A. E. Hershey

    Original Papers Pages: 236 - 241

12. Net-building behaviour, tolerance and development of two caddisfly species from the river Rhine (Hydropsyche contubernalis and H. pellucidula) in relation to the oxygen content

    • G. Becker

    Original Papers Pages: 242 - 250

13. Life history variation among low-arctic clones of obligately parthenogenetic Daphnia pulex: a diploid-polyploid complex

    • L. J. Weider

    Original Papers Pages: 251 - 256

14. Phenotypic and genetic patterns of resistance to the pathogen Phakopsora pachyrhizi in populations of Glycine canescens

    • J. J. Burdon

    Original Papers Pages: 257 - 267

15. Resorption of foliar nutrients in a regenerating southern Appalachian forest

    • C. S. Potter
    • H. L. Ragsdale
    • C. W. Berish

    Original Papers Pages: 268 - 271

16. On classifying interactions between populations

    • P. A. Abrams

    Original Papers Pages: 272 - 281

17. The comparative analysis of species occurrence patterns on archipelagos

    • R. T. Ryti
    • M. E. Gilpin

    Original Papers Pages: 282 - 287

18. Long-distance dispersal by a parasitoid (Anagrus delicatus, Mymaridae) and its host

    • M. F. Antolin
    • D. R. Strong

    Original Papers Pages: 288 - 292

19. Flowering phenology, pollen flow and fruit production in the andean shrub Befaria resinosa

    • M. N. Melampy

    Original Papers Pages: 293 - 300

20. Predation, thermoregulation, and wing color in pierid butterflies

    • J. G. Kingsolver

    Original Papers Pages: 301 - 306

21. Photosynthetic kinetics determine the outcome of competition for dissolved inorganic carbon by freshwater microalgae: implications for acidified lakes

    • T. G. Williams
    • D. H. Turpin

    Original Papers Pages: 307 - 311

22. Responses of the western spruce budworm to varying levels of nitrogen and terpenes

    • R. G. Cates
    • C. B. Henderson
    • R. A. Redak

    Original Papers Pages: 312 - 316

23. Resource distribution and its effect on the mating system of a longhorned beetle, Perarthrus linsleyi (Coleoptera: Cerambycidae)

    • S. K. Goldsmith

    Original Papers Pages: 317 - 320