1. Gut architecture, digestive constraints and feeding ecology of deposit-feeding and carnivorous polychaetes

   • Deborah L. Penry
   • Peter A. Jumars

   Original Papers Pages: 1 - 11

2. The effects of the spatial pattern of defoliation on regrowth of a tussock grass

   • W. G. Gold
   • M. M. Caldwell

   Original Papers Pages: 12 - 17

3. Phytophagous insects enhance nitrogen flux in a desert creosotebush community

   • David C. Lightfoot
   • Walter G. Whitford

   Original Papers Pages: 18 - 25

4. Snail populations in arctic lakes: competition mediated by predation?

   • Anne E. Hershey

   Original Papers Pages: 26 - 32

5. Periphytic food and predatory crayfish: relative roles in determining snail distribution

   • L. M. Weber
   • D. M. Lodge

   Original Papers Pages: 33 - 39

6. Recruitment-limitation in open populations of Diadema antillarum: an evaluation

   • Ronald H. Karlson
   • Don R. Levitan

   Original Papers Pages: 40 - 44

7. Directional fidelity as a foraging constraint in the western harvester ant, Pogonomyrmex occidentalis

   • Jennifer H. Fewell

   Original Papers Pages: 45 - 51

8. A fast method to detect the occurrence of nonhomogeneous distribution of stomatal aperture in heterobaric plant leaves

   • W. Beyschlag
   • H. Pfanz

   Original Papers Pages: 52 - 55

9. Optimal foraging and fitness in Columbian ground squirrels

   • Mark E. Ritchie

   Original Papers Pages: 56 - 67

10. Photosynthetic gas exchange under emersed conditions in eulittoral and normally submersed members of the Fucales and the Laminariales: interpretation in relation to C isotope ratio and N and water use efficiency

    • Misni B. Surif
    • John A. Raven

    Original Papers Pages: 68 - 80

11. The effects of phosphate supply on growth of plants from the Brasilian Cerrado: experiments with seedlings of the annual weed, Bidens gardneri Baker (Compositeae) and the tree, Qualea grandiflora (Mart.) (Vochysiaceae)

    • G. M. Felippe
    • J. E. Dale

    Original Papers Pages: 81 - 86

12. Objective recognition of guilds: testing for statistically significant species clusters

    • F. M. Jaksić
    • R. G. Medel

    Original Papers Pages: 87 - 92

13. Age-class differences in the pattern of hibernation in yellow-bellied marmots, Marmota flaviventris

    • A. R. French

    Original Papers Pages: 93 - 96

14. The scale of demographic heterogeneity in a population of Peromyscus leucopus

    • D. T. Krohne
    • A. B. Burgin

    Original Papers Pages: 97 - 101

15. Moose teeth as monitors of environmental isotopic parameters

    • J. L. Bada
    • R. O. Peterson
    • R. E. M. Hedges

    Original Papers Pages: 102 - 106

16. Growth versus molting time of caterpillars as a function of temperature, nutrient concentration and the phenolic rutin

    • Nancy E. Stamp

    Original Papers Pages: 107 - 113

17. Leaf water relations characteristics of Lupinus angustifolius and L. cosentinii

    • C. R. Jensen
    • I. E. Henson

    Original Papers Pages: 114 - 121

18. Leaf dynamics of seedlings of rain forest species in relation to canopy gaps

    • F. Bongers
    • J. Popma

    Original Papers Pages: 122 - 127

19. The soil fauna of a beech forest on limestone: trophic structure and energy budget

    • Matthias Schaefer

    Original Papers Pages: 128 - 136

20. Do foraging bumblebees scent-mark food sources and does it matter?

    • Ulrich Schmitt
    • Andreas Bertsch

    Original Papers Pages: 137 - 144