Niche breadth and resource partitioning by four sympatric species of bark beetles (Coleoptera: Scolytidae) T. D. PaineM. C. BirchP. Švihra OriginalPaper Pages: 1 - 6
Cyclic population changes in three mouse species in the same woodland Victor Wendland OriginalPaper Pages: 7 - 12
Fatal errors in set as a cost of dispersal and the influence of intertidal flora on set of barnacles R. R. StrathmannE. S. BranscombK. Vedder OriginalPaper Pages: 13 - 18
Use of 13C/12C to trace dissolved and particulate organic matter utilization by populations of an aquatic invertebrate Greg H. RauN. H. Anderson OriginalPaper Pages: 19 - 21
Tree species preferences of foraging insectivorous birds in a northern hardwoods forest Richard T. HolmesScott K. Robinson OriginalPaper Pages: 31 - 35
Sociality as a life-history tactic of ground squirrels Kenneth B. Armitage OriginalPaper Pages: 36 - 49
Moss functioning in different taiga ecosystems in interior Alaska O. SkreW. C. Oechel OriginalPaper Pages: 50 - 59
Ant-dependent food plant selection by the mistletoe butterfly Ogyris amaryllis (Lycaenidae) Peter R. Atsatt OriginalPaper Pages: 60 - 63
Seasonal development of circadian and short-term activity in captive reindeer, Rangifer tarandus L. Lars-Ove ErrikssonMarie-Louise KällqvistTorgny Mossing OriginalPaper Pages: 64 - 70
Population fluctuations and extinctions of small rodents in coastal southern California Andrew R. Blaustein OriginalPaper Pages: 71 - 78
The effect of a seasonal change in canopy structure on the photosynthetic efficiency of a salt marsh S. N. TuritzinB. G. Drake OriginalPaper Pages: 79 - 84
Effects of the lunar cycle on the Galápagos fur seal, Arctocephalus galapagoensis Fritz TrillmichWerner Mohren OriginalPaper Pages: 85 - 92
The photosynthetic pathway types of some desert plants from India, Saudi Arabia, Egypt, and Iraq H. ZieglerK. H. BatanounyW. Stichler OriginalPaper Pages: 93 - 99
C4 plants of high biomass in arid regions of asia-occurrence of C4 photosynthesis in Chenopodiaceae and Polygonaceae from the Middle East and USSR Klaus Winter OriginalPaper Pages: 100 - 106
Ecological fish production in two small lowland rivers in Poland Tadeusz Penczak OriginalPaper Pages: 107 - 111
Influence of micro-organisms on the germination of the monocarpic Cirsium vulgare in relation to disturbance B. H. van Leeuwen OriginalPaper Pages: 112 - 115
Life history variation in the black swallowtail butterfly William S. Blau OriginalPaper Pages: 116 - 122
Occupation of patches in the epifaunal communities on pier pilings and the bivalve Pinna bicolor at Edithburgh, South Australia Alice M. KayMichael J. Keough OriginalPaper Pages: 123 - 130
Vole population cycles: Kin-selection or familiarity? Marc Bekoff BriefCommunication Pages: 131 - 131
Vole population cycles: Ultimate or proximate explanation? Eric L. Charnov BriefCommunication Pages: 132 - 132
Competition and coexistance between Glossiphonia complanata and Helobdella stagnalis (Glossiphoniidae: Hirudinoidea) F. J. WronaRonald W. DaviesJ. Wilkialis OriginalPaper Pages: 133 - 137
Dispersal of Acacia cyclops by birds J. P. GlyphisS. J. MiltonW. R. Siegfried OriginalPaper Pages: 138 - 141
Egg-mimics of Streptanthus (Cruciferae) deter oviposition by Pieris sisymbrii (Lepidoptera: Pieridae) Arthur M. Shapiro Short Communication Pages: 142 - 143
