1. Seasonally fluctuating resources and temporal variability of interspecific competition

   • Russell J. Schmitt
   • Sally J. Holbrook

   Original Papers Pages: 1 - 11

2. Food robbing in ants, a form of interference competition

   • Bert Hölldobler

   Original Papers Pages: 12 - 15

3. Winter water relations of a deciduous timberline conifer, Larix lyallii Parl.

   • J. H. Richards
   • L. C. Bliss

   Original Papers Pages: 16 - 24

4. Plasticity in life-history traits of Plantago major L. ssp. pleiosperma Pilger

   • L. A. P. Lotz
   • C. W. P. M. Blom

   Original Papers Pages: 25 - 30

5. Population dynamics of gyrinid beetles

   • R. H. van der Eijk

   Original Papers Pages: 31 - 40

6. Population dynamics of gyrinid beetles

   • R. H. van der Eijk

   Original Papers Pages: 41 - 46

7. Foraging pattern of pine siskins and its influence on winter moth survival in an apple orchard

   • Jens Roland
   • Susan J. Hannon
   • M. Angela Smith

   Original Papers Pages: 47 - 52

8. Temperature regulation and microhabitat choice by free-ranging Galapagos fur seal pups (Arctocephalus galapagoensis)

   • Dominique Limberger
   • Fritz Trillmich
   • Robert D. Stevenson

   Original Papers Pages: 53 - 59

9. Within-lake dispersal of the prosobranch snails, Viviparus ater and Potamopyrgus jenkinsi

   • Georg Ribi

   Original Papers Pages: 60 - 63

10. Geographic variation in the effects of temperature on life-history traits in the large milkweed bug Oncopeltus fasciatus

    • J. David Baldwin
    • Hugh Dingle

    Original Papers Pages: 64 - 71

11. Thermal ecology of the smooth snake, Coronella austriaca Laurenti, during spring

    • R. G. de Bont
    • J. J. van Gelder
    • J. H. J. Olders

    Original Papers Pages: 72 - 87

12. Variability in growth and reproduction in F₁-families of an Erophila verna population

    • J. van Andel
    • N. A. M. G. Rozijn
    • H. J. M. Nelissen

    Original Papers Pages: 79 - 85

13. Selective feeding of four zooplankton species on natural lake phytoplankton

    • Karin Knisely
    • Walter Geller

    Original Papers Pages: 86 - 94

14. Influences of microclimatic conditions and water relations on seasonal leaf dimorphism of Prosopis glandulosa var. torreyana in the Sonoran Desert, California

    • E. T. Nilsen
    • M. R. Sharifi
    • R. A. Virginia

    Original Papers Pages: 95 - 100

15. The roles of adult and larval specialisations in limiting the occurrence of five species of Dacus (Diptera: tephritidae) in cultivated fruits

    • Gary P. Fitt

    Original Papers Pages: 101 - 109

16. Interactions among factors affecting growth, development and survival in experimental populations of Bufo terrestris (Anura: Bufonidae)

    • Joseph Travis
    • Joel C. Trexler

    Original Papers Pages: 110 - 116

17. Selective oviposition by a leaf miner in response to temporal variation in abscission

    • Thomas L. Bultman
    • Stanley H. Faeth

    Original Papers Pages: 117 - 120

18. Effects of leaf nitrogen availability and leaf position on nitrogen allocation patterns in Vaccinium vitis-idaea and Vaccinium uliginosum

    • A. L. Chester
    • W. C. Oechel

    Original Papers Pages: 121 - 125

19. Competition in Umbra-Perca fish assemblages: experimental and field evidence

    • William M. Tonn
    • Cynthia A. Paszkowski
    • Timothy C. Moermond

    Original Papers Pages: 126 - 133

20. Heat sensitivity and thermal adaptation of photosynthesis in liverwort thalli

    • Engelbert Weis
    • Dorothea Wamper
    • Kurt A. Santarius

    Original Papers Pages: 134 - 139

21. Variable responses to high density of female Mus musculus: A merger of two population regulation hypotheses

    • Adrianne Massey

    Original Papers Pages: 140 - 143

22. Energy costs of reproduction in the djungarian hamster Phodopus sungorus under laboratory and seminatural conditions

    • Bernd Schierwater
    • Hans Klingel

    Original Papers Pages: 144 - 147

23. The bark of trees: thermal properties, microclimate and fauna

    • Volker Nicolai

    Original Papers Pages: 148 - 160