1. Climatic patterns and the distribution of C₄ grasses in North America

   • J. A. Teeri
   • L. G. Stowe

   OriginalPaper Pages: 1 - 12

2. Organic body constituents of Protophormia terrae-novae (Dipt.) from Spitsbergen compared with flies from a laboratory stock

   • Klaus-Hubert Hoffmann

   OriginalPaper Pages: 13 - 16

3. The effect of clumped planting patterns on epidemics of damping-off disease in cress seedlings

   • J. J. Burdon
   • G. A. Chilvers

   OriginalPaper Pages: 17 - 29

4. Temporal variations in the reproductive condition of Drosophila obscura Fallén and D. subobscura collin

   • Michael Begon

   OriginalPaper Pages: 31 - 47

5. Nutrient turnover studies in Alpine ecosystems

   • H. Rehder

   OriginalPaper Pages: 49 - 62

6. Correlated photosynthetic responses and habitat factors of two successional tree species

   • J. Bacone
   • F. A. Bazzaz
   • W. R. Boggess

   OriginalPaper Pages: 63 - 74

7. Physiological ecology of Juniperus virginiana in oldfields

   • P. Ormsbee
   • F. A. Bazzaz
   • W. R. Boggess

   OriginalPaper Pages: 75 - 82