1. ¹³C discrimination during CO₂ assimilation by the terrestrial biosphere

   • Jon Lloyd
   • Graham D. Farquhar

   Review Article Pages: 201 - 215

2. Granivory and microhabitat use in Australian desert rodents: are seeds important?

   • Brad R. Murray
   • Chris R. Dickman

   Original Paper Pages: 216 - 225

3. Dietary variation in arctic foxes (Alopex lagopus)-an analysis of stable carbon isotopes

   • Anders Angerbjörn
   • Pall Hersteinsson
   • Erle Nelson

   Original Paper Pages: 226 - 232

4. Water and nitrogen dynamics in an arid woodland

   • R. D. Evans
   • J. R. Ehleringer

   Original Paper Pages: 233 - 242

5. Variation in digestive performance between geographically disjunct populations of Atlantic salmon: countergradient in passage time and digestion rate

   • Alfredo G. Nicieza
   • Luiz Reiriz
   • Florentino Braña

   Original Paper Pages: 243 - 251

6. Predator detection and avoidance by lotic mayfly nymphs of different size

   • Pertii Tikkanen
   • Timo Muotka
   • Arto Huhta

   Original Paper Pages: 252 - 259

7. Environmental and developmental controls over the seasonal pattern of isoprene emission from aspen leaves

   • R. K. Monson
   • P. C. Harley
   • R. Fall

   Original Paper Pages: 260 - 270

8. Consequences and causes of geographic variation in the body size of a keystone predator,Notophthalmus viridescens

   • Lynn M. Kurzava
   • Peter J. Morin

   Original Paper Pages: 271 - 280

9. Adaptive variation in growth rate: life history costs and consequences in the speckled wood butterfly,Pararge aegeria

   • Karl Gotthard
   • Sören Nylin
   • Christer Wiklund

   Original Paper Pages: 281 - 289

10. Removal of nitrogen during needle senescence in Scots pine (Pinus sylvestris L.)

    • Torgny Näsholm

    Original Paper Pages: 290 - 296

11. Pioneer and late stage tropical rainforest tree species (French Guiana) growing under common conditions differ in leaf gas exchange regulation, carbon isotope discrimination and leaf water potential

    • R. Huc
    • A. Ferhi
    • J. M. Guehl

    Original Paper Pages: 297 - 305

12. Above- and below-ground environmental influences on leaf conductance ofCeanothus thyrsiflorus growing in a chaparral environment: drought response and the role of abscisic acid

    • J. D. Tenhunen
    • R. Hanano
    • W. Hartung

    Original Paper Pages: 306 - 314

13. The effect of elevated carbon dioxide and fertilization on primary and secondary metabolites in birch,Betula pendula (Roth)

    • A. Lavola
    • R. Julkunen-Tiitto

    Original Paper Pages: 315 - 321

14. Vascular plants as bioindicators of regional warming in Antarctica

    • R. I. Lewis Smith

    Original Paper Pages: 322 - 328

15. Host-associated fitness variation in a seed beetle (Coleoptera: Bruchidae): evidence for local adaptation to a poor quality host

    • Charles W. Fox
    • Kim J. Waddell
    • Timothy A. Mousseau

    Original Paper Pages: 329 - 336

16. Patch dynamics ofGlaucopsyche lygdamus (Lycaenidae): correlations between butterfly density and host species diversity

    • David B. Carey

    Original Paper Pages: 337 - 342

17. Long term effects of naturally elevated CO₂ on mediterranean grassland and forest trees

    • Christian Körner
    • Francesco Miglietta

    Original Paper Pages: 343 - 351

18. Contrasting effects of habitat structure on the recruitment and mortality of an epibiotic macroalga

    • G. J. Inglis

    Original Paper Pages: 352 - 365

19. Cold hardiness and overwintering strategy of the pink maize stalk borer,Sesamia nonagrioides Lef (lepidoptera, noctuidae)

    • N. Gillyboeuf
    • P. Anglade
    • L. Peypelut

    Original Paper Pages: 366 - 373

20. Genetic variation in constitutive and inducible pyrrolizidine alkaloid levels inCynoglossum officinale L.

    • Nicole M. van Dam
    • Klaas Vrieling

    Original Paper Pages: 374 - 378

21. The effect of fire on nutrient losses and cycling in aQuercus coccifera garrigue (southern France)

    • Louis Trabaud

    Original Paper Pages: 379 - 386

22. Effects of nutrient and water stress on leaf phenolic content of peppers and susceptibility to generalist herbivoreHelicoverpa armigera (Hubner)

    • M. Estiarte
    • I. Filella
    • J. Peñuelas

    Original Paper Pages: 387 - 391

23. Forest-to-pasture conversion influences on soil organic carbon dynamics in a tropical deciduous forest

    • Felipe García-Oliva
    • Isabel Casar
    • José M. Maass

    Original Paper Pages: 392 - 396

24. Unpredictable seed-set: a defence mechanism against seed-eating insects inProtea species (Proteaceae)

    • M. G. Wright

    Short Communication Pages: 397 - 400