1. Modification of animal habitat by large plants: mechanisms by which seagrasses influence clam growth

   • E. A. Irlandi
   • C. H. Peterson

   Original Papers Pages: 307 - 318

2. The parasitoidOoencyrtus nezarae (Hymenoptera: Encyrtidae) prefers hosts parasitized by conspecifics over unparasitized hosts

   • Keiji Takasu
   • Yoshimi Hirose

   Original Papers Pages: 319 - 323

3. Host habitat finding and host selection of theDrosophila parasitoidLeptopilina australis (Hymenoptera, Eucoilidae), with a comparison of the niches of EuropeanLeptopilina species

   • Jacques J. M. van Alphen
   • Göran Nordlander
   • Irene Eijs

   Original Papers Pages: 324 - 329

4. Morphological and physiological responses to increased salinity in marsh and dune ecotypes ofSporobolus virginicus (L.) Kunth

   • K. C. Blits
   • J. L. Gallagher

   Original Papers Pages: 330 - 335

5. Fish size and habitat depth relationships in headwater streams

   • B. C. Harvey
   • A. J. Stewart

   Original Papers Pages: 336 - 342

6. Home range scaling: intraspecific and comparative trends

   • Matthew E. Gompper
   • John L. Gittleman

   Original Papers Pages: 343 - 348

7. Carotenoid composition and photon-use efficiency of photosynthesis inGossypium hirsutum L. grown under conditions of slightly suboptimum leaf temperatures and high levels of irradiance

   • Martina Königer
   • Klaus Winter

   Original Papers Pages: 349 - 356

8. Trade-offs inDaphnia vertical migration strategies

   • C. Guisande
   • A. Duncan
   • W. Lampert

   Original Papers Pages: 357 - 359

9. Reciprocal latitudinal clines in oviposition behavior ofPapilio glaucus andP. canadensis across the Great Lakes hybrid zone: possible sex-linkage of oviposition preferences

   • J. Mark Scriber
   • Bruce L. Giebink
   • Doozie Snider

   Original Papers Pages: 360 - 368

10. Vertical stratification of °¹³C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico

    • Ernesto Medina
    • Leonel Sternberg
    • Elvira Cuevas

    Original Papers Pages: 369 - 372

11. Lack of rapid monoterpene turnover in rooted plants: implications for theories of plant chemical defense

    • Charles A. Mihaliak
    • Jonathan Gershenzon
    • Rodney Croteau

    Original Papers Pages: 373 - 376

12. Plasticity and acclimation to light in tropical Moraceae of different sucessional positions

    • S. Strauss-Debenedetti
    • F. A. Bazzaz

    Original Papers Pages: 377 - 387

13. Influence of leaf traits on the spatial distribution of insect herbivores associated with an overstorey rainforest tree

    • Yves Basset

    Original Papers Pages: 388 - 393

14. Effect of physiological and experiential state ofBactrocera tryoni flies on intra-tree foraging behavior for food (bacteria) and host fruit

    • Ronald J. Prokopy
    • Richard A. I. Drew
    • Edward Hamacek

    Original Papers Pages: 394 - 400

15. Intra versus interspecific interactions of ladybeetles (Coleoptera: Coccinellidae) attacking aphids

    • Edward W. Evans

    Original Papers Pages: 401 - 408

16. Implications of phytoplankton chemical composition for zooplankton production: experimental evidence

    • Alessandra Giani

    Original Papers Pages: 409 - 416

17. The influence of temperature on the duration of egg development in West European grasshoppers (Orthoptera: Acrididae)

    • W. K. R. E. van Wingerden
    • J. C. M. Musters
    • F. I. M. Maaskamp

    Original Papers Pages: 417 - 423

18. Effects of experience on palatability hierarchies of novel plants in the polyphagous grasshopperSchistocerca americana

    • Jerome J. Howard
    • Elizabeth A. Bernays

    Original Papers Pages: 424 - 428

19. The carboxylase activity of Rubisco and the photosynthetic performance in aquatic plants

    • S. Beer
    • K. Sand-Jensen
    • S. L. Nielsen

    Original Papers Pages: 429 - 434

20. Predator avoidance by the freshwater snailPhysella virgata in response to the crayfishProcambarus simulans

    • J. E. Alexander Jr.
    • A. P. Covich

    Original Papers Pages: 435 - 442

21. Territorial spacing and interspecific competition in three species of reed warblers

    • Herbert Hoi
    • Thomas Eichler
    • John Dittami

    Original Papers Pages: 443 - 448

22. Ecomorphological relationships of a guild of ground-foraging birds in northern California, USA

    • William M. Block
    • Leonard A. Brennan
    • R. J. Gutiérrez

    Original Papers Pages: 449 - 458