Reduction in locomotor ability as a cost of reproduction in gravid snakes R. A. SeigelM. M. HugginsN. B. Ford Original Papers Pages: 481 - 485
Hydraulic lift: Substantial nocturnal water transport between soil layers by Artemisia tridentata roots J. H. RichardsM. M. Caldwell Original Papers Pages: 486 - 489
Microhabitat use in a mediterranean riverine fish assemblage G. D. GrossmanA. de SostoaJ. Lobon-Cerviá Original Papers Pages: 490 - 500
Microhabitat use in a mediterranean riverine fish assemblage G. D. GrossmanA. de SostoaJ. Lobon-Cerviá Original Papers Pages: 501 - 512
Effect of nitrogen fertilization upon the secondary chemistry and nutritional value of quaking aspen (Populus tremuloides Michx.) leaves for the large aspen tortrix (Choristoneura conflictana (Walker)) J. P. BryantT. P. ClausenR. A. Werner Original Papers Pages: 513 - 517
Trapping efficiency of three carnivorous Pinguicula species P. S. KarlssonK. O. NordellA. Svensson Original Papers Pages: 518 - 521
Pseudocopulation of an orchid by male ants: a test of two hypotheses accounting for the rarity of ant pollination R. PeakallA. J. BeattieS. H. James Original Papers Pages: 522 - 524
Photographic estimation of photosynthetically active radiation: evaluation of a computerized technique R. L. ChazdonC. B. Field Original Papers Pages: 525 - 532
Numerical responses by populations of red fox and mountain hare during an outbreak of sarcoptic mange K. DanellB. Hörnfeldt Original Papers Pages: 533 - 536
The population dynamics of Cheilosia fasciata (Diptera, Syrphidae): significance of environmental factors and behavioural adaptations in a phytophagous insect K. Hövemeyer Original Papers Pages: 537 - 542
Pattern and mortality in Colorado Desert plants S. J. WrightH. F. Howe Original Papers Pages: 543 - 552
Natural and Chernobyl-caused radioactivity in mushrooms, mosses and soil-samples of defined biotops in SW Bavaria E. F. ElstnerRita FinkH. Ziegler Original Papers Pages: 553 - 558
Seasonal wing length dimorphism in a tropical seed bug: ecological significance of the short-winged form S. TanakaH. Wolda Original Papers Pages: 559 - 565
Altitudinal changes in the incidence of crassulacean acid metabolism in vascular epiphytes and related life forms in Papua New Guinea M. J. EarnshawK. WinterT. C. Gunn Original Papers Pages: 566 - 572
Soil and plant water relations in a crested wheatgrass pasture: response to spring grazing by cattle J. M. WraithD. A. JohnsonD. V. Sisson Original Papers Pages: 573 - 578
Methods for detecting non-randomness in species co-occurrences: a contribution J. B. Wilson Original Papers Pages: 579 - 582
Effect of larval host on life history traits of the mediterranean fruit fly, Ceratitis capitata D. A. KrainackerJ. R. CareyR. I. Vargas Original Papers Pages: 583 - 590
Comparative responses of Achillea millefolium ecotypes to competition and soil type S. S. HigginsR. N. Mack Original Papers Pages: 591 - 597
Changes in the down colour of chicks during a population decline in red grouse R. MossA. Watson Original Papers Pages: 598 - 600
Oviposition site selection in Cactoblastis cactorum (Lepidoptera): constraints and compromises H. G. Robertson Original Papers Pages: 601 - 608
Spatial heterogeneity, population “regulation” and local extinction in simulated host-parasitoid interactions G. MorrisonP. Barbosa Original Papers Pages: 609 - 614
Induced tolerance of neonate Heliothis zea to host plant allelochemicals and carbaryl following incubation of eggs on foliage of Lycopersicon hirsutum f. glabratum G. G. KennedyR. R. FarrarM. R. Riskallah Original Papers Pages: 615 - 620
Interspecific competition between the principal larval parasitoids of the pine sawfly, Neodiprion sertifer (Geoff.) (Hym.: Diprionidae) H. Pschorn-Walcher Original Papers Pages: 621 - 625
Paternal effects on offspring traits in Scaphiopus couchi (Anura: Pelobatidae) B. D. Woodward Original Papers Pages: 626 - 629
Evolution of erect growth forms in domesticated wheats: possible effects of grazing Y. Waisel Short Communication Pages: 630 - 632