1. Hydraulic lift: water efflux from upper roots improves effectiveness of water uptake by deep roots

   • M. M. Caldwell
   • J. H. Richards

   Original Papers Pages: 1 - 5

2. The evolutionary importance of mechanoreception in three erpobdellid leech species

   • Dean W. Blinn
   • Ronald W. Davies

   Original Papers Pages: 6 - 9

3. Microhabitat selection and coexistence in feather mites (Acari: Analgoidea) on Alaskan seabirds

   • Jae C. Choe
   • Ke Chung Kim

   Original Papers Pages: 10 - 14

4. Variation in selection pressures on the goldenrod gall fly and the competitive interactions of its natural enemies

   • Warren G. Abrahamson
   • Joan F. Sattler
   • Arthur E. Weis

   Original Papers Pages: 15 - 22

5. The role of lesser snow geese as nitrogen processors in a sub-arctic salt marsh

   • R. W. Ruess
   • D. S. Hik
   • R. L. Jefferies

   Original Papers Pages: 23 - 29

6. Selective feeding by shredders on leaf-colonizing stream fungi: comparison of macroinvertebrate taxa

   • T. L. Arsuffi
   • K. Suberkropp

   Original Papers Pages: 30 - 37

7. Changes in gas exchange characteristics and water use efficiency of mangroves in response to salinity and vapour pressure deficit

   • B. F. Clough
   • R. G. Sim

   Original Papers Pages: 38 - 44

8. Comparative responses of the Savanna grasses Cenchrus ciliaris and Themeda triandra to defoliation

   • K. C. Hodgkinson
   • M. M. Ludlow
   • Z. Baruch

   Original Papers Pages: 45 - 52

9. Photosynthetic characteristics of a tropical forest understory herb, Alocasia macrorrhiza, and a related crop species, Colocasia esculenta grown in contrasting light environments

   • Daniel A. Sims
   • Robert W. Pearcy

   Original Papers Pages: 53 - 59

10. Accumulation of cadmium and copper by the terrestrial snail Arianta arbustorum L.: kinetics and budgets

    • Burkhard Berger
    • Reinhard Dallinger

    Original Papers Pages: 60 - 65

11. Mechanical determinants of nectar-feeding energetics in butterflies: muscle mechanics, feeding geometry, and functional equivalence

    • Thomas L. Daniel
    • Joel G. Kingsolver
    • Edgar Meyhöfer

    Original Papers Pages: 66 - 75

12. Predation risk and the structure of freshwater zooplankton communities

    • Craig E. Williamson
    • Mark E. Stoeckel
    • L. Jane Schoeneck

    Original Papers Pages: 76 - 82

13. Intra-seasonal decline of clutch size in Lesser Snow Geese

    • Jean Hamann
    • Fred Cooke

    Original Papers Pages: 83 - 90

14. Population interactions among free-living bluefish and prey fish in an ocean environment

    • Carl Safina
    • Joanna Burger

    Original Papers Pages: 91 - 95

15. Physiological determinants of growth rate in response to phosphorus supply in wild and cultivated Hordeum species

    • F. S. Chapin
    • R. H. Groves
    • L. T. Evans

    Original Papers Pages: 96 - 105

16. The distribution of hauled-out ringed seals and an interpretation of Taylor's law

    • Michael C. S. Kingsley

    Original Papers Pages: 106 - 110

17. Influence of plant phenology on the insect herbivore/bittercress interaction

    • S. K. Collinge
    • S. M. Louda

    Original Papers Pages: 111 - 116

18. Physiological energetics of the intertidal sea anemone Anthopleura elegantissima

    • William E. Zamer
    • J. Malcolm Shick

    Original Papers Pages: 117 - 127

19. Nitrogen concentration and mimicry in some New Zealand mistletoes

    • Peter Bannister

    Original Papers Pages: 128 - 132

20. The contribution of abiotic processes to buried litter decomposition in the northern Chihuahuan desert

    • Daryl L. Moorhead
    • James F. Reynolds

    Original Papers Pages: 133 - 135

21. Exclusion of birds from bilberry stands: impact on insect larval density and damage to the bilberry

    • Ola Atlegrim

    Original Papers Pages: 136 - 139

22. Dynamics of heterotrophic succession in carrion revisited

    • K. G. Schoenly
    • W. Reid

    Short Communication Pages: 140 - 142