1. Feeding postures of suspension-feeding larval black flies: the conflicting demands of drag and food acquisition

   • D. D. Hart
   • R. A. Merz
   • B. D. Clark

   Original Papers Pages: 457 - 463

2. Mechanisms of competition among insectivorous mammals

   • C. R. Dickman

   Original Papers Pages: 464 - 471

3. Competition between mobile species using patchy resources: an example from a freshwater, symbiotic assemblage

   • Barbara J. Downes

   Original Papers Pages: 472 - 482

4. Nonequilibrial community structure of sawflies on arroyo willow

   • William J. Boecklen
   • Peter W. Price

   Original Papers Pages: 483 - 491

5. Age-specific differences in the winter foraging strategies of rooks Corvus frugilegus

   • I. G. Henderson
   • P. J. B. Hart

   Original Papers Pages: 492 - 497

6. Pseudocyphellaria dissimilis: a desiccation-sensitive, highly shade-adapted lichen from New Zealand

   • T. G. A. Green
   • Ellen Kilian
   • O. L. Lange

   Original Papers Pages: 498 - 503

7. The effects of habitat complexity on the macroinvertebrates colonising wood substrates in a lowland stream

   • N. A. O'Connor

   Original Papers Pages: 504 - 512

8. Thermoregulation and activity patterns of two syntopic cicadas, Tibicen chiricahua and T. duryi (Homoptera: Cicadidae), in central New Mexico

   • J. M. Hastings
   • E. C. Toolson

   Original Papers Pages: 513 - 520

9. Mechanisms of intra-and interspecific interference between larval stoneflies

   • Barbara L. Peckarsky

   Original Papers Pages: 521 - 529

10. Experimental studies on direct and indirect interactions in a three trophic-level stream system

    • Chifu Huang
    • Andrew Sih

    Original Papers Pages: 530 - 536

11. Rehydration effects on pressure-volume relationships in four temperate woody species: variability with site, time of season and drought conditions

    • M. E. Kubiske
    • M. D. Abrams

    Original Papers Pages: 537 - 542

12. Fluctuating food supply affects the clutch size of Tengmalm's owl independent of laying date

    • Erkki Korpimäki
    • Harri Hakkarainen

    Original Papers Pages: 543 - 552

13. Temporal variation in diets and trophic partitioning by coexisting lizards (Ctenotus: Scincidae) in central Australia

    • Craig D. James

    Original Papers Pages: 553 - 561

14. Generalized plant defense: effects on multiple species

    • Vera A. Krischik
    • Robert W. Goth
    • Pedro Barbosa

    Original Papers Pages: 562 - 571

15. Community interactions between the filamentous alga Cladophora glomerata (L.) Kuetzing, its epiphytes, and epiphyte grazers

    • Walter K. Dodds

    Original Papers Pages: 572 - 580

16. Biology of slugs (Agriolimacidae and Arionidae: Mollusca) in New Zealand hill country pastures

    • Gary M. Barker

    Original Papers Pages: 581 - 595

17. Seasonal changes in shoot regrowth potential in Calamagrostis canadensis

    • E. H. Hogg
    • V. J. Lieffers

    Original Papers Pages: 596 - 602