1. Facultative sex ratio shifts by a herbivorous insect in response to variation in host plant quality

   • Timothy P. Craig
   • Peter W. Price
   • Joanne K. Itami

   Original Papers Pages: 153 - 161

2. Predator induced life-history shifts in a freshwater cladoceran

   • Herwig Stibor

   Original Papers Pages: 162 - 165

3. Seasonal patterns of acid fluctuations and resource storage in the arborescent cactus Opuntia excelsa in relation to light availability and size

   • Manuel T. Lerdau
   • N. Michele Holbrook
   • Julie L. Whitbeck

   Original Papers Pages: 166 - 171

4. Flight energetics in relation to sexual differences in the mating behaviour of a mayfly, Siphlonurus aestivalis

   • Michel Sartori
   • Laurent Keller
   • Luc Passera

   Original Papers Pages: 172 - 176

5. Determinants of seed production in Geranium maculatum

   • Jon Ågren
   • Mary F. Willson

   Original Papers Pages: 177 - 182

6. Attractiveness and exploitation of decaying herbage by Drosophila in temperate woodland

   • Monika Offenberger
   • Albert J. Klarenberg

   Original Papers Pages: 183 - 187

7. Effects of light quantity and quality during development on the morphology and stomatal physiology of Commelina communis

   • S. M. Assmann

   Original Papers Pages: 188 - 195

8. Feeding by seed bugs and weevils enhances germination of wild Gossypium species

   • Richard Karban
   • Gregory Lowenberg

   Original Papers Pages: 196 - 200

9. Soil macrofauna and nitrogen on a sub-Antarctic island

   • V. R. Smith
   • Marianna Steenkamp

   Original Papers Pages: 201 - 206

10. Ammonium and nitrate uptake in gap, generalist and understory species of the genus Piper

    • Arthur L. Fredeen
    • Christopher B. Field

    Original Papers Pages: 207 - 214

11. Cursorial spiders and succession: age or habitat structure?

    • L. E. Hurd
    • W. F. Fagan

    Original Papers Pages: 215 - 221

12. Dynamic stomatal behavior and its role in carbon gain during lightflecks of a gap phase and an understory Piper species acclimated to high and low light

    • Clara Tinoco-Ojanguren
    • Robert W. Pearcy

    Original Papers Pages: 222 - 228

13. The effects of fire on scarlet gilia: an alternative selection pressure to herbivory?

    • Ken N. Paige

    Original Papers Pages: 229 - 235

14. The effect of nitrogen nutrition on growth and biomass partitioning of annual plants originating from habitats of different nitrogen availability

    • K. Fichtner
    • E. -D. Schulze

    Original Papers Pages: 236 - 241

15. Structure in a desert rodent community: use of space around Dipodomys spectabilis mounds

    • M. A. Bowers
    • J. H. Brown

    Original Papers Pages: 242 - 249

16. Leaf production, reproductive patterns, field germination and seedling survival in Chamaedorea bartlingiana, a dioecious understory palm

    • Michele Ataroff
    • Teresa Schwarzkopf

    Original Papers Pages: 250 - 256

17. Effects of pyrrolizidine alkaloids and sesquiterpenes on snail feeding

    • B. Speiser
    • J. Harmatha
    • M. Rowell-Rahier

    Original Papers Pages: 257 - 265

18. Indirect costs of seed production within and between seasons in a gynodioecious species

    • T -L. Ashman

    Original Papers Pages: 266 - 272

19. Sex ratio from germination through maturity and its reproductive consequences in the liverwort Sphaerocarpos texanus

    • D. Nicholas McLetchie

    Original Papers Pages: 273 - 278

20. Female frequencies and fitness components between sex phenotypes among gynodioecious populations of the colonizing species Trifolium hirtum All. in California

    • F. Molina-Freaner
    • S. K. Jain

    Original Papers Pages: 279 - 286

21. Factors affecting the reproductive success of the crab spider Misumenoides formosipes: the covariance between juvenile and adult traits

    • Michael W. Beck
    • Edward F. Connor

    Original Papers Pages: 287 - 295

22. Antifungal activity in seed coat extracts of woodland plants

    • Susan J. Warr
    • Ken Thompson
    • Martin Kent

    Short Communications Pages: 296 - 298

23. Responses to a simple habitat cue in naive swamp and song sparrows

    • R. Greenberg

    Short Communications Pages: 299 - 300

24. Extirpation of alternative prey during a small rodent crash

    • Charles A. Drost
    • Reed C. McCluskey

    Short Communications Pages: 301 - 304