1. Aspects of dietary quality, nutrient assimilation and water balance in wild howler monkeys (Alouatta palliata)

   • Kenneth A. Nagy
   • Katharine Milton

   OriginalPaper Pages: 249 - 258

2. Suspension feeding dynamics of anuran larvae related to their functional morphology

   • D. B. Seale
   • R. J. Wassersug

   OriginalPaper Pages: 259 - 272

3. Adaptation and acclimation of higher plants at the enzyme level: Latitudinal variations of thermal properties of NAD malate dehydrogenase in Lathyrus japonicus Willd. (Leguminosae)

   • Jean-Pierre Simon

   OriginalPaper Pages: 273 - 287

4. Variability in migratory tendency within and among natural populations of the pea aphid, Acyrthosiphon pisum

   • Robert J. Lamb
   • Patricia A. MacKay

   OriginalPaper Pages: 289 - 299

5. Migratory tendency in aging populations of the pea aphid, Acyrthosiphon pisum

   • Patricia A. MacKay
   • Robert J. Lamb

   OriginalPaper Pages: 301 - 308

6. Prey capture by the crab spider Misumena calycina (Araneae: Thomisidae)

   • Douglass H. Morse

   OriginalPaper Pages: 309 - 319

7. Energy utilization and carbon metabolism in mediterranean scurb vegetation of Chile and California

   • Walter C. Oechel
   • William T. Lawrence

   OriginalPaper Pages: 321 - 335

8. Population regulation in Bromus rubens and B. mollis: Life cycle components and competition

   • K. K. Wu
   • S. K. Jain

   OriginalPaper Pages: 337 - 357

9. Nitrogen fixation (acetylene reduction) associated with communities of heterocystous and non-heterocystous blue-green algae in mangrove forests of Sinai

   • M. Potts

   OriginalPaper Pages: 359 - 373

10. A technique for the enumeration of benthic ciliated protozoa

    • B. J. Finlay
    • Johanna Laybourn
    • I. Strachan

    Short Communication Pages: 375 - 377