Food of roach (Rutilus rutilus) and ide (Leusiscus idus): significance of diet shift for interspecific competition in omnivorous fishes Åge Brabrand Original Papers Pages: 461 - 467
Seasonal variation in catabolic enzyme activities in breast muscle of some migratory birds Björn O. LundgrenKarl-Heinz Kiessling OriginalPaper Pages: 468 - 471
Diffused light conditions in canopy gaps in a beech (Fagus crenata Blume) forest Tohru Nakashizuka OriginalPaper Pages: 472 - 474
Canopy transpiration and water fluxes in the xylem of the trunk of Larix and Picea trees — a comparison of xylem flow, porometer and cuvette measurements E. -D. SchulzeJ. ČermákJ. Kučera OriginalPaper Pages: 475 - 483
A comparison of the energy budgets of three species of Pogonomyrmex harvester ants (Hymenoptera: Formicidae) William P. MacKay OriginalPaper Pages: 484 - 494
Egg distribution and survivorship in the pierid butterfly, Colias alexandra Jane Leslie Hayes OriginalPaper Pages: 495 - 498
Population regulation of the native holly leafminer, Phytomyza ilicicola Loew (Diptera: Agromyzidae), on American holly Daniel A. Potter OriginalPaper Pages: 499 - 505
A new look at energy conversion in ectothermic and endothermic animals W. Wieser OriginalPaper Pages: 506 - 510
Egg predation in forest bird communities on islands and mainland Sven G. NilssonChrister BjörkmanJacob Höglund OriginalPaper Pages: 511 - 515
Nesting holes and food supply in relation to forest bird densities on islands and mainland Sven G. NilssonChrister BjörkmanJacob Höglund OriginalPaper Pages: 516 - 521
Comparative water relations of adjacent california shrub and grassland communities S. D. DavisH. A. Mooney OriginalPaper Pages: 522 - 529
The carbon balance of flowers of Diplacus aurantiacus (Scrophulariaceae) K. WilliamsG. W. KochH. A. Mooney OriginalPaper Pages: 530 - 535
Effects of coexistence on the performance of white clover-perennial ryegrass mixtures D. R. EvansJ. HillI. Rhodes OriginalPaper Pages: 536 - 539
Thermal ecology of Pieris butterflies (Lepidoptera: Pieridae): a new mechanism of behavioral thermoregulation Joel G. Kingsolver OriginalPaper Pages: 540 - 545
Thermoregulatory significance of wing melanization in Pieris butterflies (Lepidoptera: Pieridae): physics, posture, and pattern Joel G. Kingsolver OriginalPaper Pages: 546 - 553
Responses of cowpeas (Vigna unguiculata (L.) Walp.) to progressive soil drought O. Osonubi OriginalPaper Pages: 554 - 557
Central place foraging by beavers (Castor canadensis): a test of foraging predictions and the impact of selective feeding on the growth form of cottonwoods (Populus fremontii) Mark A. McGinleyThomas G. Whitham OriginalPaper Pages: 558 - 562
Resource selection by tropical frugivorous birds: integrating multiple interactions Thomas E. Martin OriginalPaper Pages: 563 - 573
r-and K-selection in soil ciliates: a field and experimental approach G. LüfteneggerW. FoissnerH. Adam OriginalPaper Pages: 574 - 579
Prey analysis of four species of tropical orb-weaving spiders (Araneae: Araneidae) and a comparison with araneids of the temperate zone Wolfgang Nentwig OriginalPaper Pages: 580 - 594
Species of reptiles occupying habitat islands in Western Arizona: a deterministic assemblage K. Bruce JonesLauren P. KepnerThomas E. Martin OriginalPaper Pages: 595 - 601
Foliar nutrient dynamics and nutrient use efficiency in Cornus florida Jane A. KostR. E. J. Boerner OriginalPaper Pages: 602 - 606
