Foraging rhythm of great crested grebes Podiceps cristatus adjusted to diel variations in the vertical distribution of their prey Osmerus eperlanus in a shallow eutrophic lake in The Netherlands T. PiersmaR. LindeboomM. R. van Eerden Original Papers Pages: 481 - 486
Tree-ring analysis and conifer growth responses to increased atmospheric CO2 levels Felix KienastRobert J. Luxmoore Original Papers Pages: 487 - 495
Prey preference in stoneflies: a comparative analysis of prey vulnerability J. D. AllanA. S. Flecker Original Papers Pages: 496 - 503
Variability of the grass Phragmites australis in relation to the behaviour and mortality of the gall-inducing midge Giraudiella inclusa (Diptera, Cecidomyiidae) Teja Tscharntke Original Papers Pages: 504 - 512
Performance of two Picea abies (L.) Karst. stands at different stages of decline R. ZimmermannR. OrenK. S. Werk Original Papers Pages: 513 - 518
Performance of two Picea abies (L.) Karst. stands at different stages of decline K. S. WerkR. OrenJ. Meyer Original Papers Pages: 519 - 524
Factors affecting post-dispersal seed survival in a tropical forest Eugene W. Schupp Original Papers Pages: 525 - 530
Three sympatric species of Neotoma: dietary specialization and coexistence Kenneth P. Dial Original Papers Pages: 531 - 537
The effect of prior adult experience on components of habitat preference in the apple maggot fly (Rhagoletis pomonella) Daniel R. PapajRonald J. Prokopy Original Papers Pages: 538 - 543
Thermoregulation as a limit to habitat use in alpine marmots (Marmota marmota) A. TürkW. Arnold Original Papers Pages: 544 - 548
Consequences of divergent egg phenology to predation and coexistence in two sympatric, congeneric mantids (Orthoptera: Mantidae) L. E. Hurd Original Papers Pages: 549 - 552
Comparative ecophysiology of Encelia farinosa and Encelia frutescens James R. Ehleringer Original Papers Pages: 553 - 561
Correlations between carbon isotope ratio and microhabitat in desert plants James R. EhleringerTamsie A. Cooper Original Papers Pages: 562 - 566
Microhabitat shifts of lizards under different contexts of sympatry: a case study with South American Liolaemus R. G. MedelP. A. MarquetF. M. Jaksić Original Papers Pages: 567 - 569
Predation pressure on an imperfect Batesian micicry complex in the presence of alternative prey Martin HetzC. N. Slobodchikoff Original Papers Pages: 570 - 573
Daily foraging schedule of field colonies of the eastern tent caterpillar Malacosoma americanum T. D. FitzgeraldTim CaseyBarbara Joos Original Papers Pages: 574 - 578
The species-area relationship of European Lumbricidae (Annelida, Oligochaeta) M. Judas Original Papers Pages: 579 - 587
Augmentation of beneficial arthropods by strip-management Wolfgang Nentwig Original Papers Pages: 597 - 606
Spatial patterns of goldenrod aphids and the response of enemies to patch density N. Cappuccino Original Papers Pages: 607 - 610
Weight changes of cross-desert migrants at an oasis —do energetic considerations alone determine the length of stopover? Uriel N. SafrielDaphna Lavee Original Papers Pages: 611 - 619
Relationship among settling, demography and habitat selection: an approach and a case study Moshe ShachakSol Brand Original Papers Pages: 620 - 626
Density-dependent size regulation and negative growth in the sea urchin Diadema antillarum Philippi Don R. Levitan Original Papers Pages: 627 - 629
A mechanism for interference between stream predators: responses of the stonefly Agnetina capitata to the presence of sculpins Daniel A. SolukNicholas C. Collins Short Communication Pages: 630 - 632