1. Pollen flow in Psiguria warscewiczii: a comparison of Heliconius butterflies and hummingbirds

   • D. A. Murawski
   • L. E. Gilbert

   Original Papers Pages: 161 - 167

2. Food limitation of a Delaware salt marsh population of the mummichog, Fundulus heteroclitus (L.)

   • Stephen B. Weisberg
   • Victor A. Lotrich

   Original Papers Pages: 168 - 173

3. Nutrient and biomass allocation in Solidago altissima: effects of two stem gallmakers, fertilization, and ramet isolation

   • Warren G. Abrahamson
   • Kenneth D. McCrea

   Original Papers Pages: 174 - 180

4. Temperature, water, and PAR influences on predicted and measured productivity of Agave deserti at various elevations

   • Park S. Nobel
   • Terry L. Hartsock

   Original Papers Pages: 181 - 185

5. Increased macroalgal abundance following mass mortalities of sea urchins (Strongylocentrotus droebachiensis) along the Atlantic coast of Nova Scotia

   • Robert Scheibling

   Original Papers Pages: 186 - 198

6. Effects of parentage on competitive ability and vulnerability to predation in Hyla chrysoscelis tadpoles

   • Ross A. Alford

   Original Papers Pages: 199 - 204

7. Abundance of macrofauna in dense seagrass is due to habitat preference, not predation

   • Johann D. Bell
   • Mark Westoby

   Original Papers Pages: 205 - 209

8. Dispersal and gene flow in a butterfly with home range behavior: Heliconius erato (Lepidoptera: Nymphalidae)

   • James Mallet

   Original Papers Pages: 210 - 217

9. Protandry, synchronized flowering and sequential phenotypic unisexuality in neotropical Pentagonia macrophylla (Rubiaceae)

   • Lucinda A. McDade

   Original Papers Pages: 218 - 223

10. Crassulacean acid metabolism in the shade. Studies on an epiphytic fern, Pyrrosia longifolia, and other rainforest species from Australia

    • K. Winter
    • C. B. Osmond
    • K. T. Hubick

    Original Papers Pages: 224 - 230

11. Indirect effects of granivory by harvester ants: plant species composition and reproductive increase near ant nests

    • Steven W. Rissing

    Original Papers Pages: 231 - 234

12. Adaptive and incidental consequences of the alba polymorphism in an agricultural population of Colias butterflies: female size, fecundity, and differential dispersion

    • George W. Gilchrist
    • Ronald L. Rutowski

    Original Papers Pages: 235 - 240

13. Temperature-controlled under-water egg dormancy and postflood hatching in Isotoma viridis (Collembola) as forms of adaptation to annual long-term flooding

    • Jochen Christian Tamm

    Original Papers Pages: 241 - 245

14. On the importance of dissolved organic matter in the nutrition of zooplankton in some lake waters

    • Kalevi Salonen
    • Taina Hammar

    Original Papers Pages: 246 - 253

15. Units of measurement for fractal extent, applied to the coastal distribution of bald eagle nests in the Aleutian Islands, Alaska

    • C. J. Pennycuick
    • N. C. Kline

    Original Papers Pages: 254 - 258

16. The role of photoperiod in the timing of reproduction in the Dasyurid Marsupial Antechinus stuartii

    • B. M. McAllan
    • C. R. Dickman

    Original Papers Pages: 259 - 264

17. Characterisation of the arrestment responses of Trichogramma evanescens

    • Sarah M. Gardner
    • J. C. van Lenteren

    Original Papers Pages: 265 - 270

18. Canopy dynamics and carbon gain in response to soil water availability in Encelia frutescens gray, a drought-deciduous shrub

    • Jonathan Comstock
    • James Ehleringer

    Original Papers Pages: 271 - 278

19. Comparative water use and nitrogen relationships in a mistletoe and its host

    • James R. Ehleringer
    • Craig S. Cook
    • Larry L. Tieszen

    Original Papers Pages: 279 - 284

20. Interactions between seed source, planting arrangement, and soil treatment in determining plant size and root allocation in Phlox drummondii

    • J. S. Heywood
    • D. A. Levin

    Original Papers Pages: 285 - 290

21. The feeding behaviour of a sit-and wait-predator, Ranatra dispar (Heteroptera: Nepidae): optimal foraging and feeding dynamics

    • Paul C. E. Bailey

    Original Papers Pages: 291 - 297

22. “Searching time aggregation” and density dependent parasitism in a laboratory host-parasitoid interaction

    • Gerold Morrison

    Original Papers Pages: 298 - 303

23. Three pollination morphs in Cimicifuga simplex; incipient speciation due to inferiority in competition

    • Olle Pellmyr

    Original Papers Pages: 304 - 307

24. The effects of microcrustaceans on succession and diversity of an algal microcosm community

    • Rebecca L. Peer

    Original Papers Pages: 308 - 314

25. Significance of temperature fluctuation and oxygen concentration for germination of the rice field weeds Fimbristylis littoralis and Scirpus juncoides

    • T. L. Pons
    • H. F. J. M. Schröder

    Original Papers Pages: 315 - 319

26. Announcement

    Announcement Pages: 320 - 320