The reproductive strategy of the gregarious parasitoid, Pteromalus puparum (Hymenoptera: Pteromalidae) Masami Takagi Original Papers Pages: 321 - 325
Ecological energetics of Chaoborus in a tropical lake Claudia CressaWilliam M. Lewis Jr. Original Papers Pages: 326 - 331
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. J. Ă…grenT. ElmqvistA. Tunlid Original Papers Pages: 332 - 338
Soil acidification and vegetation changes in deciduous forest in southern Sweden Ursula Falkengren-Grerup Original Papers Pages: 339 - 347
Canopy dynamics estimated from shoot morphology in an evergreen broad-leaved forest F. Koike Original Papers Pages: 348 - 350
Mating pattern variability among western toad (Bufo boreas) populations Deanna H. OlsonAndrew R. BlausteinRichard K. O'Hara Original Papers Pages: 351 - 356
Consumption of nematodes by fungivorous mites, Tyrophagus spp. (Acarina: Astigmata: Acaridae) D. E. WalterR. A. HudgensD. W. Freckman Original Papers Pages: 357 - 361
The acute toxicity of cadmium to different larval stages of Chironomus riparius (Diptera: Chironomidae) and its ecological significance for pollution regulation Kendall A. WilliamsDavid W. J. GreenDeborah E. Gower Original Papers Pages: 362 - 366
Feeding patterns in eastern tropical Pacific blennioid fishes (Teleostei: Tripterygiidae, Labrisomidae, Chaenopsidae, Blenniidae) Kurt KotrschalDon A. Thomson Original Papers Pages: 367 - 378
Azteca protection of Cecropia: ant occupation benefits juvenile trees Eugene W. Schupp Original Papers Pages: 379 - 385
Yeast communities from host plants and associated Drosophila in southern arizona: new isolations and analysis of the relative importance of hosts and vectors on comunity composition Philip F. GanterWilliam T. StarmerHerman J. Phaff Original Papers Pages: 386 - 392
Use of an analytical model to study limitations on net photosynthesis in Arbutus unedo under field conditions P. C. HarleyJ. D. TenhunenO. L. Lange Original Papers Pages: 393 - 401
Stochastic aggregative responses and spatial patterns of parasitism in patchy host-parasitoid interactions Gerold Morrison Original Papers Pages: 402 - 410
Variation in Cnidoscolus texanus in relation to herbivory A. Joseph Pollard Original Papers Pages: 411 - 413
Behavioural adaptations of ground living bushcrickets to the properties of sound propagation in low grassland Armin KeuperKlaus KalmringWerner Kaiser Original Papers Pages: 414 - 422
Episodic stemflow inputs of magnesium and potassium to a tropical forest floor during heavy rainfall events Stanley R. Herwitz Original Papers Pages: 423 - 425
Variable HCO 3 - affinity of Elodea canadensis Michaux in response to different HCO 3 - and CO2 concentrations during growth Kaj Sand-JensenDavid M. Gordon Original Papers Pages: 426 - 432
The influence of environmental variables on the density of larval lampreys in different seasons I. C. PotterR. W. HilliardR. J. McKay Original Papers Pages: 433 - 440
Water stress and light intensity effects on growth and nocturnal acid accumulation in a terrestrial CAM bromeliad (Bromelia humilis Jacq.) under natural conditions E. MedinaE. OlivaresM. Diaz Original Papers Pages: 441 - 446
Acid stress in Rumex hydrolapathum (Polygonaceae) and its influence on the phytophage Lycaena dispar (Lepidoptera; Lycaenidae) F. A. Bink Original Papers Pages: 447 - 451
The effects of chrysomelid beetle grazing and plant competition on the growth of Rumex obtusifolius D. A. CottamJ. B. WhittakerA. J. C. Malloch Original Papers Pages: 452 - 456
Guild structure in water mites (Unionicola spp.) inhabiting freshwater mussels: choice, competitive exclusion and sex Barbara J. Downes Original Papers Pages: 457 - 465
Carbon and nitrogen partitioning in the biennial monocarp Arctium tomentosum Mill H. HeilmeierE. -D. SchulzeD. M. Whale Original Papers Pages: 466 - 474
Water use by the desert cucurbit Citrullus colocynthis (L.) Schrad. Ali Mubarak AlthawadiJohn Grace Original Papers Pages: 475 - 480