1. Gas exchange of four arctic and alpine tundra plant species in relation to atmospheric and soil moisture stress

   • Douglas A. Johnson
   • Martyn M. Caldwell

   OriginalPaper Pages: 93 - 108

2. The relationship between high fecundity and the evolution of entoparasitism

   • J. B. Jennings
   • P. Calow

   OriginalPaper Pages: 109 - 115

3. Dry weight indicates energy allocation in ecological strategy analysis of plants

   • James C. Hickman
   • Louis F. Pitelka

   OriginalPaper Pages: 117 - 121

4. Eco-physiological studies on Indian arid zone plants

   • N. Sankhla
   • H. Ziegler
   • P. Trimborn

   OriginalPaper Pages: 123 - 129

5. Energy flow and organic matter decomposition in an abandoned beaver pond ecosystem

   • I. D. Hodkinson

   OriginalPaper Pages: 131 - 139

6. The distribution of an intertidal aphid, Pemphigus trehernei foster, on marine saltmarshes

   • W. A. Foster
   • J. E. Treherne

   OriginalPaper Pages: 141 - 155

7. Food selection by beavers

   • Stephen H. Jenkins

   OriginalPaper Pages: 157 - 173

8. Seasonal and diurnal courses of water relations of the arido-active plant Hammada scoparia in the Negev desert

   • L. Kappen
   • J. J. Oertli
   • M. Evenari

   OriginalPaper Pages: 175 - 192