1. Low night temperature effect on photosynthate translocation of two C₄ grasses

   • C. Potvin
   • B. R. Strain
   • J. D. Goeschl

   Original Papers Pages: 305 - 309

2. Spatio-temporal patterns of mortality in Pemphigus populicaulis and P. populitransversus on cottonwoods

   • R. W. Setzer

   Original Papers Pages: 310 - 321

3. Fluctuations of density and survival of carabid populations

   • P. J. den Boer

   Original Papers Pages: 322 - 330

4. Time-budgeting by starlings Sturnus vulgaris: Time minimizing, energy maximizing and the annual cycle organization

   • Per Lundberg

   Original Papers Pages: 331 - 337

5. Optimal foraging: the difficulty of exploiting different feeding strategies simultaneously

   • Lennart Persson

   Original Papers Pages: 338 - 341

6. Community and population dynamics of serpentine grassland annuals in relation to gopher disturbance

   • R. J. Hobbs
   • H. A. Mooney

   Original Papers Pages: 342 - 351

7. Why is there no interspecific host discrimination in the two coexisting larval parasitoids of Drosophila species; Lepyopilina heterotoma (Thomson) and Asobara tabida (Nees)

   • Ted C. J. Turlings
   • F. D. H. van Batenburg
   • Willy T. F. H. van Strien-van Liempt

   Original Papers Pages: 352 - 359

8. Movement patterns of a clear-wing hawkmoth, Hemaris fuciformis, foraging at red catchfly, Viscaria vulgaris

   • Hans Dreisig

   Original Papers Pages: 360 - 366

9. Selective damage to tree-seedlings by bank voles (Clethrionomys glareolus)

   • C. D. Pigott

   Original Papers Pages: 367 - 371

10. Propagule size, dispersal ability, and seedling performance in Asclepias syriaca

    • Douglass H. Morse
    • Johanna Schmitt

    Original Papers Pages: 372 - 379

11. Midday depression in net photosynthesis and stomatal conductance in Yucca glauca

    • Paul G. Roessler
    • Russell K. Monson

    Original Papers Pages: 380 - 387

12. Photosynthetic responses of native and introduced C₄ grasses from Venezuelan savannas

    • Z. Baruch
    • M. M. Ludlow
    • R. Davis

    Original Papers Pages: 388 - 393

13. Gradients in density variations of small rodents: the importance of latitude and snow cover

    • Lennart Hansson
    • Heikki Henttonen

    Original Papers Pages: 394 - 402

14. Effects of pollen and nitrogen availability on reproduction in a woodland herb, Lysimachia quadrifolia

    • Claire McCall
    • Richard B. Primack

    Original Papers Pages: 403 - 410

15. Higher survival of an aposematic than of a cryptic form of a distasteful bug

    • Birgitta Sillén-Tullberg

    Original Papers Pages: 411 - 415

16. Seed fate in a population of Carex pilulifera L.

    • Gösta Kjellsson

    Original Papers Pages: 416 - 423

17. Seed fate in a population of Carex pilulifera L.

    • Gösta Kjellsson

    Original Papers Pages: 424 - 429

18. Competitive reversals and environment-dependent resource partitioning in Erodium

    • Kevin J. Rice
    • John W. Menke

    Original Papers Pages: 430 - 434

19. Fruit composition and patterns of fruit dispersal of two Cornus spp.

    • V. A. Borowicz
    • A. G. Stephenson

    Original Papers Pages: 435 - 441

20. Leptokurtic pollen-flow, non-leptokurtic gene-flow in a wind-pollinated herb, Plantago lanceolata L.

    • Stephen J. Tonsor

    Original Papers Pages: 442 - 446

21. Bacteria associated with four species of Dacus (Diptera: Tephritidae) and their role in the nutrition of the larvae

    • Gary P. Fitt
    • R. W. O'Brien

    Original Papers Pages: 447 - 454

22. Green Islands — nutrition not predation —an alternative hypothesis

    • T. C. R. White

    Short Communication Pages: 455 - 456