Resource heterogeneity and patterns of movement in foraging bumblebees Bernd Heinrich OriginalPaper Pages: 235 - 245
The effects of stem girdling on biogeochemical cycles within a mixed deciduous forest in eastern Tennessee N. T. EdwardsB. M. Ross-Todd OriginalPaper Pages: 247 - 257
The effects of stem girdling on biogeochemical cycles within a mixed deciduous forest in eastern Tennessee D. W. JohnsonN. T. Edwards OriginalPaper Pages: 259 - 271
Coexistence and the comparative light relations of the submersed macrophytes Myriophyllum spicatum L. and Vallisneria americana Michx. John E. TitusMichael S. Adams OriginalPaper Pages: 273 - 286
Consumption and food utilization by individual larvae and the population of a wood borer Phymatodes maaki Kraatz (Coleoptera: Cerambycidae) Kiyohiko Ikeda OriginalPaper Pages: 287 - 298
A comparative study of resource utilization in natural populations of Drosophila melanogaster and D. simulans J. A. McKenzieS. W. McKechnie OriginalPaper Pages: 299 - 309
Two circadian eclosion times in Chironomus thummi (Diptera), alternately selected with different temperatures A. Kureck OriginalPaper Pages: 311 - 323
A small-scale saturator for experiments in which a high accuracy in humidity is required D. Ch. BrandtF. J. S. W. Körner OriginalPaper Pages: 325 - 329
Carbon assimilation patterns and growth of the introduced CAM plant Opuntia inermis in Eastern Australia C. B. OsmondD. L. NottP. M. Firth OriginalPaper Pages: 331 - 350
Some competition experiments with alang-alang (Imperata cylindrica (L.) Beauv.) in replacement series J. H. H. Eussen OriginalPaper Pages: 351 - 356
Stomata of the CAM plant Tillandsia recurvata respond directly to humidity O. L. LangeE. Medina OriginalPaper Pages: 357 - 363
Reproductive effort in Danish mudsnails (Hydrobiidae) Hans Heidemann Lassen OriginalPaper Pages: 365 - 369
Relationships of leaf diffusion resistance of Populus clones to leaf water potential and environment S. G. PallardyT. T. Kozlowski OriginalPaper Pages: 371 - 380
