1. Annual replacement of the tillers of Agropyron desertorum following grazing

   • B. E. Olson
   • J. H. Richards

   Original Papers Pages: 1 - 6

2. Spatial arrangement of tiller replacement in Agropyron desertorum following grazing

   • B. E. Olson
   • J. H. Richards

   Original Papers Pages: 7 - 10

3. The resource balance of Milium effusum with emphasis on environmental resource supply

   • S. Jonasson
   • B. Widerberg

   Original Papers Pages: 11 - 19

4. Comparative demography of sympatric populations of Lacerta vivipara and Lacerta agilis

   • H. Strijbosch
   • R. C. M. Creemers

   Original Papers Pages: 20 - 26

5. Optimal foraging: food patch depletion by ruddy ducks

   • Michael W. Tome

   Original Papers Pages: 27 - 36

6. What causes extended lows in microtine cycles?

   • Geir A. Sonerud

   Original Papers Pages: 37 - 42

7. Fate and distribution of sulfur-35 in yellow poplar and red maple trees

   • C. T. Garten Jr.

   Original Papers Pages: 43 - 50

8. Plant stress and insect behavior: cottonwood, ozone and the feeding and oviposition preference of a beetle

   • Clive G. Jones
   • James S. Coleman

   Original Papers Pages: 51 - 56

9. Plant stress and insect performance: cottonwood, ozone and a leaf beetle

   • James S. Coleman
   • Clive G. Jones

   Original Papers Pages: 57 - 61

10. Forest fragmentation and avian nest predation in forested landscapes

    • M. F. Small
    • M. L. Hunter

    Original Papers Pages: 62 - 64

11. The inhibition of phenolic biosynthesis in damaged and undamaged birch foliage and its effect on insect herbivores

    • S. E. Hartley

    Original Papers Pages: 65 - 70

12. Extinction, turnover and species diversity in an experimentally fragmented California annual grassland

    • George R. Robinson
    • James F. Quinn

    Original Papers Pages: 71 - 82

13. The role of fish in distribution and germination of seeds of the submerged macrophytes Najas marina L. and Ruppia maritima L.

    • M. Agami
    • Y. Waisel

    Original Papers Pages: 83 - 88

14. Aestival dormancy in the cabbage moth Mamestra brassicae L. (Lepidoptera: Noctuidae)

    • Klaus Peter Sauer
    • Cornelia Grüner

    Original Papers Pages: 89 - 96

15. Interspecific size regularities in tropical felid assemblages

    • R. A. Kiltie

    Original Papers Pages: 97 - 105

16. A comparison of realised niche relations of species in New Zealand and Britain

    • J. Bastow Wilson
    • John C. E. Hubbard
    • Gillian L. Rapson

    Original Papers Pages: 106 - 110

17. Relative reproductive effort in males and females of the dioecious shrub Oemleria cerasiformis

    • Geraldine A. Allen
    • Joseph A. Antos

    Original Papers Pages: 111 - 118

18. Differences in pollinator effectiveness of birds and insects visiting Banksia menziesii (Proteaceae)

    • M. W. Ramsey

    Original Papers Pages: 119 - 124

19. Size-dependent pollination efficiency in Anchusa officinalis (Boraginaceae): causes and consequences

    • Stefan Andersson

    Original Papers Pages: 125 - 130

20. Larval consumption rates, interspecific predation, and local guild composition of egg-overwintering Agabus (Coleoptera, Dytiscidae) species in vernal ponds

    • Anders N. Nilsson
    • Olle Söderström

    Original Papers Pages: 131 - 137

21. Behavioral evidence for host races in Rhagoletis pomonella flies

    • Ronald J. Prokopy
    • Scott R. Diehl
    • Sylvia S. Cooley

    Original Papers Pages: 138 - 147

22. Predation-driven dynamics of zooplankton and phytoplankton communities in a whole-lake experiment

    • James J. Elser
    • Stephen R. Carpenter

    Original Papers Pages: 148 - 154

23. Kelp gulls Larus dominicanus as predators in kelp Macrocystis pyrifera beds

    • P. A. R. Hockey

    Short Communications Pages: 155 - 157

24. Seed weight and seed resources in relation to plant growth rate

    • H. S. Choe
    • C. Chu
    • H. A. Mooney

    Short Communications Pages: 158 - 159

25. Announcement

    Announcement Pages: 160 - 160