1. Remote sensing of the xanthophyll cycle and chlorophyll fluorescence in sunflower leaves and canopies

   • J. A. Gamon
   • C. B. Field
   • J. Peñuelas

   Original Papers Pages: 1 - 7

2. The role of litter in an old-field community: impact of litter quantity in different seasons on plant species richness and abundance

   • Walter P. Carson
   • Chris J. Peterson

   Original Papers Pages: 8 - 13

3. Climatic change and its ecological implications at a subantarctic island

   • V. R. Smith
   • Marianna Steenkamp

   Original Papers Pages: 14 - 24

4. Pathogen-activated induced resistance of cucumber: response of arthropod herbivores to systemically protected leaves

   • Dwinardi Apriyanto
   • Daniel A. Potter

   Original Papers Pages: 25 - 31

5. Germination and establishment of Sahelian rangeland species

   • W. Th. Elberse
   • H. Breman

   Original Papers Pages: 32 - 40

6. Behavioral responses by bumble bees to variation in pollen availability

   • Lawrence D. Harder

   Original Papers Pages: 41 - 47

7. Predation and drift of lotic macroinvertebrates during colonization

   • J. Lancaster

   Original Papers Pages: 48 - 56

8. Patch formation by herbivorous fish in a temperate Australian kelp forest

   • N. L. Andrew
   • G. P. Jones

   Original Papers Pages: 57 - 68

9. An experimental study on the effects of crayfish on the predator-prey interaction between bass and sculpin

   • David L. McNeely
   • Brenda N. Futrell
   • Andrew Sih

   Original Papers Pages: 69 - 73

10. The checkerboard score and species distributions

    • Lewi Stone
    • Alan Roberts

    Original Papers Pages: 74 - 79

11. Sexual and site differences in calcium consumption by the Malabar Giant Squirrel Ratufa indica

    • Renée M. Borges

    Original Papers Pages: 80 - 86

12. The effect of queen ants on the survival of Maculinea arion larvae in Myrmica ant nests

    • J. A. Thomas
    • J. C. Wardlaw

    Original Papers Pages: 87 - 91

13. Structure of herbivore communities in two oak (Quercus spp.) hybrid zones

    • William J. Boecklen
    • Richard Spellenberg

    Original Papers Pages: 92 - 100

14. The adaptive significance of an environmentally-cued developmental switch in an anuran tadpole

    • David Pfennig

    Original Papers Pages: 101 - 107

15. Patterns of gas exchange and organic acid oscillations in tropical trees of the genus Clusia

    • A. C. Franco
    • E. Ball
    • U. Lüttge

    Original Papers Pages: 108 - 114

16. Effect of nitrogen supply on growth, allocation and gas exchange characteristics of two perennial grasses from inland dunes

    • René G. A. Boot
    • Koen C. den Dubbelden

    Original Papers Pages: 115 - 121

17. Porcupine diggings as a unique ecological system in a desert environment

    • Y. Gutterman
    • T. Golan
    • M. Garsani

    Original Papers Pages: 122 - 127

18. Photosynthesis of Littorella uniflora grown under two PAR regimes: C₃ and CAM gas exchange and the regulation of internal CO₂ and O₂ concentrations

    • W. E. Robe
    • H. Griffiths

    Original Papers Pages: 128 - 136

19. Effects of disease resistance genes on Rhizobium symbiosis in an annual legume

    • Matthew A. Parker
    • Richard T. Wilkens

    Original Papers Pages: 137 - 141

20. Plant and soil nitrogen dynamics in mediterranean grasslands: a comparison of annual and perennial grasses

    • R. Joffre

    Original Papers Pages: 142 - 149

21. The problem with zeroes: why don't drosophilids lay eggs?

    • Bryan Shorrocks
    • Marc Bingley

    Short Communication Pages: 150 - 152