1. Antibiosis/antixenosis in tulip tree and quaking aspen leaves against the polyphagous southern armyworm, Spodoptera eridania

   • S. Manuwoto
   • J. M. Scriber
   • P. Sunarjo

   Original Papers Pages: 1 - 7

2. Effects of temperature on the development, growth, and survival of larvae and pupae of a north-temperate chrysomelid beetle

   • Robert J. Lamb
   • George H. Gerber

   Original Papers Pages: 8 - 18

3. Drastic effects of El Niño on Galapagos pinnipeds

   • Fritz Trillmich
   • Dominique Limberger

   Original Papers Pages: 19 - 22

4. Limitations due to water stress on leaf net photosynthesis of Quercus coccifera in the Portuguese evergreen scrub

   • J. D. Tenhunen
   • O. L. Lange
   • A. Meyer

   Original Papers Pages: 23 - 30

5. The relative contributions of termites and microarthropods to fluff grass litter disappearance in the Chihuahuan Desert

   • Solange I. Silva
   • William P. MacKay
   • Walter G. Whitford

   Original Papers Pages: 31 - 34

6. Foraging activity patterns in the goosander (Mergus merganser) and the red-breasted merganser (M. serrator) in relation to patterns of activity in their major prey species

   • Kjell Sjöberg

   Original Papers Pages: 35 - 39

7. Why do fleshy-fruit plants of the mediterranean scrub intercept fall-but not spring-passage of seed-dispersing migratory birds?

   • Ido Izhaki
   • Uriel N. Safriel

   Original Papers Pages: 40 - 43

8. Rana cascadae tadpoles aggregate with siblings: an experimental field study

   • Richard K. O'Hara
   • Andrew R. Blaustein

   Original Papers Pages: 44 - 51

9. Phenolic glycosides govern the food selection pattern of willow feeding leaf beetles

   • J. Tahvanainen
   • R. Julkunen-Tiitto
   • J. Kettunen

   Original Papers Pages: 52 - 56

10. Ecological comparisons of robber fly species (Diptera: Asilidae) coexisting in a neotropical forest

    • Todd E. Shelly

    Original Papers Pages: 57 - 70

11. Predation versus resource limitation in survival of adult burrowing wolf spiders (Araneae: Lycosidae)

    • Marsha Reeves Conley

    Original Papers Pages: 71 - 75

12. Predation by three owl species on northern pocket gophers of different body mass

    • Stewart W. Janes
    • John M. Barss

    Original Papers Pages: 76 - 81

13. The importance of contaminated food for the uptake of heavy metals by rainbow trout (Salmo gairdneri): a field study

    • Reinhard Dallinger
    • Hannes Kautzky

    Original Papers Pages: 82 - 89

14. Experimental disturbance and the maintenance of species diversity in a stream community

    • Seth R. Reice

    Original Papers Pages: 90 - 97

15. Does an optimally foraging oystercatcher obey the functional response?

    • Jan Wanink
    • Leo Zwarts

    Original Papers Pages: 98 - 106

16. Seed dispersal by nutcrackers causes multi-trunk growth form in pines

    • Yan B. Linhart
    • Diana F. Tomback

    Original Papers Pages: 107 - 110

17. Top-bottom asymmetry in vertical orbwebs: a functional explanation and attendant complications

    • Wolfgang Nentwig

    Original Papers Pages: 111 - 112

18. Reproductive biomass allocation in three Sargassum species

    • Richard M. McCourt

    Original Papers Pages: 113 - 117

19. The ecological importance of insect frass: allelopathy in eucalypts

    • J. A. Silander Jr.
    • L. R. Fox
    • B. R. Trenbath

    Original Papers Pages: 118 - 120

20. The effect of nectar guides on pollinator preference: experimental studies with a montane herb

    • Nickolas M. Waser
    • Mary V. Price

    Original Papers Pages: 121 - 126

21. Freshwater snail diversity: effects of pond area, habitat heterogeneity and isolation

    • Christer Brönmark

    Original Papers Pages: 127 - 131

22. Growth of a grazing phytoplanktivorous fish and growth enhancement of the grazed alga

    • Michael E. McDonald

    Original Papers Pages: 132 - 136

23. Size-selective attack by parasitic lampreys: consideration of alternate null hypotheses

    • P. A. Cochran

    Original Papers Pages: 137 - 141

24. Condensed tannins deter feeding by browsing ruminants in a South African savanna

    • S. M. Cooper
    • N. Owen-Smith

    Original Papers Pages: 142 - 146

25. Decomposition of grasses in Nairobi National Park, Kenya

    • Ian Deshmukh

    Original Papers Pages: 147 - 149

26. Spatial heterogeneity in post-dispersal predation on Prunus and Uvularia seeds

    • Sara L. Webb
    • Mary F. Willson

    Short Communications Pages: 150 - 153

27. Combined effects of photoperiod and temperature on the diapause of an intertidal chironomid

    • D. Neumann
    • M. Krüger

    Short Communications Pages: 154 - 156