1. Branch growth and leaf numbers of red maple (Acer rubrum L.) and red oak (Quercus rubra L.): response to defoliation

   • G. H. Heichel
   • Neil C. Turner

   Original Papers Pages: 1 - 6

2. Host visitation sequence as a determinant of search persistence in fruit parasitic tephritid flies

   • Bernard D. Roitberg
   • Ronald J. Prokopy

   Original Papers Pages: 7 - 12

3. Predation at a snail's pace: what's time to a gastropod?

   • Christofer H. Boggs
   • James A. Rice
   • James F. Kitchell

   Original Papers Pages: 13 - 17

4. Water balance and pattern of root water uptake by a Quercus coccifera L. evergreen srub

   • S. Rambal

   Original Papers Pages: 18 - 25

5. The presence or absence of phenolglycosides in Salix (Salicaceae) leaves and the level of dietary specialisation of some of their herbivorous insects

   • Martine Rowell-Rahier

   Original Papers Pages: 26 - 30

6. The effects of pollen composition on fitness components in a neotropical herb

   • Douglas W. Schemske
   • Lynn P. Pautler

   Original Papers Pages: 31 - 36

7. Oviposition behaviour of two tephritid fruit flies, Dacus tryoni and Dacus jarvisi, as influenced by the presence of larvae in the host fruit

   • Gary P. Fitt

   Original Papers Pages: 37 - 46

8. Food preference, food quality and diets of three herbivorous gastropods (Trochidae: Tegula) in a temperate kelp forest habitat

   • J. M. Watanabe

   Original Papers Pages: 47 - 52

9. The influence of the quantity of food on fecundity in the desert grassland scorpion (Paruroctonus utahensis) (Scorpionida, Vaejovidae): An experimental test

   • Richard A. Bradley

   Original Papers Pages: 53 - 56

10. Growth and mortality of individual plants as a function of “available area”

    • Richard Mithen
    • John L. Harper
    • Jacob Weiner

    Original Papers Pages: 57 - 60

11. Douglas-fir (Pseudotsuga menziesii)—spruce budworm (Choristoneura occidentalis) interactions: the effect of nutrition, chemical defenses, tissue phenology, and tree physical parameters on budworm success

    • R. A. Redak
    • Rex G. Cates

    Original Papers Pages: 61 - 67

12. Effects of salinity on growth and photosynthesis of three California tidal marsh species

    • Robert W. Pearcy
    • Susan L. Ustin

    Original Papers Pages: 68 - 73

13. Does tent caterpillar attack reduce the food quality of red alder foliage?

    • Judith H. Myers
    • Kathy S. Williams

    Original Papers Pages: 74 - 79

14. On the osmoregulation in Atriplex hymenelytra (Torr.) Wats. (Chenopodiaceae)

    • H. Wilfried Bennert
    • Brigitte Schmidt

    Original Papers Pages: 80 - 84

15. Production efficiency in small mammal populations

    • W. F. Humphreys

    Original Papers Pages: 85 - 90

16. The fecundity and long-term variability in abundance of noctuid moths (Lepidoptera, Noctuidae)

    • Karel Spitzer
    • Marcel Rejmánek
    • Tomáš Soldán

    Original Papers Pages: 91 - 93

17. Are there allelopathic interactions in zooplankton? Laboratory experiments with Daphnia

    • Alfred Seitz

    Original Papers Pages: 94 - 96

18. Effects of chaetognath predation and nutrient enrichment on enclosed estuarine copepod communities

    • R. S. Fulton III

    Original Papers Pages: 97 - 101

19. Introduced reindeer and their effects on the vegetation and the epigeic invertebrate fauna of South Georgia (subantarctic)

    • Michael Vogel
    • Herman Remmert
    • Ron I. Lewis Smith

    Original Papers Pages: 102 - 109

20. The effect of different growing conditions on water relations parameters of leaf epidermal cells of Tradescantia virginiana L.

    • E. Brinckmann
    • S. D. Tyerman
    • E. -D. Schulze

    Original Papers Pages: 110 - 117

21. Habitat overlap/niche segregation in two Umbilicaria lichens: a possible mechanism

    • D. W. Larson

    Original Papers Pages: 118 - 125

22. Aggressive behavior of adult meadow voles (Microtus pennsylvanicus) towards young

    • Rudy Boonstra

    Original Papers Pages: 126 - 131

23. Age and hunting success in the brown pelican: influences of skill and patch choice on foraging efficiency

    • C. A. Brandt

    Original Papers Pages: 132 - 137

24. Population growth and intrinsic rate of natural increase of the high arctic nematode Chiloplacus sp. at low and high temperatures

    • D. L. C. Procter

    Original Papers Pages: 138 - 140

25. Spatial patterns of disease induced by Fusarium moniliforme var. subglutinans in a population of Plantago lanceolata

    • Helen Miller Alexander

    Short Communication Pages: 141 - 143

26. The ecology of Lake Nakuru (Kenya)

    • E. Vareschi
    • J. Jacobs

    Erratum Pages: 144 - 144