Factors determining the abundance and distribution of rodents in a shrub-steppe ecosystem: the role of shrubs Robert R. ParmenterJames A. MacMahon Original Papers Pages: 145 - 156
The effects of meiofauna on settling macrofauna: meiofauna may structure macrofaunal communities Mary C. Watzin Original Papers Pages: 163 - 166
Microhabitat heterogeneity and population ecology of an herbivorous rodent, Microtus californicus Andrew CockburnWilliam Z. Lidicker Jr Original Papers Pages: 167 - 177
Bunchgrass architecture, light interception, and water-use efficiency: assessment by fiber optic point quadrats and gas exchange M. M. CaldwellT. J. DeanJ. H. Richards Original Papers Pages: 178 - 184
Competition for dispersal agents among tropical trees: influences of neighbors Robin S. ManasseHenry F. Howe Original Papers Pages: 185 - 190
Ants and extrafloral nectaries: no evidence for plant protection in Helichrysum spp. — ant interactions Dennis J. O'DowdE. A. Catchpole Original Papers Pages: 191 - 200
Canopy processing of acidic precipitation by coniferous and hardwood forests in New England C. S. CronanW. A. Reiners Original Papers Pages: 216 - 223
Gray whales and the structure of the Bering Sea benthos M. K. NeriniJ. S. Oliver Original Papers Pages: 224 - 225
Induced responses of cherry trees to periodical cicada oviposition Richard Karban Original Papers Pages: 226 - 231
Nectar production rates of Asclepias quadrifolia: causes and consequences of individual variation John M. PleasantsStephen J. Chaplin Original Papers Pages: 232 - 238
Further studies on a native Australian eucalypt forest invaded by exotic pines G. A. ChilversJ. J. Burdon Original Papers Pages: 239 - 245
Geographic variation in habitat structure for the wood warblers in Maine and Minnesota Scott L. Collins Original Papers Pages: 246 - 252
The effects of clipping, nitrogen source and nitrogen concentration on the growth responses and nitrogen uptake of an east african sedge R. W. RuessS. J. McNaughtonM. B. Coughenour Original Papers Pages: 253 - 261
The efficiency of pollen transfer and rates of embryo initiation in Cryptantha (Boraginaceae) Brenda B. Casper Original Papers Pages: 262 - 268
Ecological correlates of explosive seed dispersal Nancy E. StampJeffrey R. Lucas Original Papers Pages: 272 - 278
Effects of diurnal thermoperiods and quickly oscillating temperatures on the development and reproduction of crickets, Gryllus bimaculatus Walter BehrensKlaus-Hubert HoffmannGisela Merkel-Wallner Original Papers Pages: 279 - 287
Litter decomposition, CO2-release and enzyme activities in a snowbed and on a windswept ridge in an alpine environment F. Schinner Original Papers Pages: 288 - 291
Relative abundance in an alien weed flora Frank ForcellaStephen J. Harvey Original Papers Pages: 292 - 295
Vesicular-arbuscular mycorrhizae of weedy and colonizer plant species at disturbed sites in Utah R. L. PendletonB. N. Smith Original Papers Pages: 296 - 301
Habitat quality and the reproductive strategies of the migratory morphs of the bird cherry-oat aphid, Rhopalosiphum padi (L.), colonizing secondary host plants S. R. LeatherP. W. WellingsA. F. G. Dixon Original Papers Pages: 302 - 306
Population structure, residency and weather related mortality in the black swallowtail butterfly, Papilio polyxenes Robert C. Lederhouse Original Papers Pages: 307 - 311
The importance of food and space in limiting web-spider densities; a test using field enclosures Ann L. Rypstra Original Papers Pages: 312 - 316
Models of hostplant location by butterflies: the effect of search images and search efficiency S. P. Courtney Original Papers Pages: 317 - 321
Leaf consumption by insects in three Eucalyptus forest types in Southeastern Australia and their role in short-term nutrient cycling C. P. OhmartL. G. StewartJ. R. Thomas Original Papers Pages: 322 - 330
Time and energy constraints on the brood size of swallows, Hirundo rustica, and sand martins, Riparia riparia Angela K. Turner Original Papers Pages: 331 - 338
Foliage damage in coniferous trees following volcanic ashfall from Mt. St. Helens V. A. SeymourT. M. HinckleyJ. F. Franklin Original Papers Pages: 339 - 343
Drought relations of shrub species: assessment of the mechanisms of drought resistance T. M. HinckleyF. DuhmeH. Richter Original Papers Pages: 344 - 350
Reproduction of Erythronium umbilicatum (Liliaceae): pollination success and pollinator effectiveness Alexander F. Motten Original Papers Pages: 351 - 359
The timing of seed dispersal in Viooa nuttallii: attraction of dispersers and avoidance of predators Christine L. TurnbullDavid C. Culver Original Papers Pages: 360 - 365
Autotoxic inhibition of seed germination by Typha latifolia: an evaluation James B. Grace Original Papers Pages: 366 - 369
Seed predation and patterns of fruit production in Asclepias syriaca L. Susan E. FransonMary F. Willson Original Papers Pages: 370 - 376
Seasonal variation in the gas exchange characteristics of Primula species David M. Whale Original Papers Pages: 377 - 383
Ecological consequences of body size: a model for patch choice in desert rodents Mary V. Price Original Papers Pages: 384 - 392
Coexistence and interference in two submersed freshwater perennial plants Nancy J. McCrearyStephen R. CarpenterJack E. Chaney Original Papers Pages: 393 - 396
Invasion by the tufted duck Aythya fuligula into a pond area: implications of diffuse competition Roland BrandlKlaus Schmidtke Original Papers Pages: 397 - 401
Sex ratio adjustment in Asobara persimilis (Hymenoptera: braconidae), a parasitoid of Drosophila Robin E. Owen Short Communications Pages: 402 - 404
Indirect mutualism in the legume — Rhizobium — mycorrhizal fungus interaction Helen C. CluettDouglas H. Boucher Short Communications Pages: 405 - 408
Ethylene production by ascocarps of Elaphomyces species H. -Ö. NohrstedtL. E. Kers Short Communications Pages: 409 - 410
Drosophila baits and yeasts: species attracted Louis Bernard KlaczkoJeffrey R. PowellCharles E. Taylor Short Communications Pages: 411 - 413
Leaf-scratching — a specialized behaviour of danaine butterflies (Lepidoptera) for gathering secondary plant substances Michael Boppré Short Communications Pages: 414 - 416
A fiber optic point quadrat system for improved accuracy in vegetation sampling M. M. CaldwellG. W. HarrisR. S. Dzurec Short Communications Pages: 417 - 418
