1. High nitrogen isotope ratio for soils of seabird rookeries

   • Hiroshi Mizutani
   • Hiroshi Hasegawa
   • Eitaro Wada

   OriginalPaper Pages: 221 - 247

2. Gaseous nitrogen emmissions from undisturbed terrestrial ecosystems: An assessment of their impacts on local and global nitrogen budgets

   • William B. Bowden

   OriginalPaper Pages: 249 - 279

3. Seasonal and annual variation in nitrogen mineralization and nitrification along an elevational gradient in New Mexico

   • James R. Gosz
   • Carleton S. White

   OriginalPaper Pages: 281 - 297

4. Rapid microbial metabolism of non-protein amino acids in the sea

   • Jonathan J. Cole
   • Cindy Lee

   OriginalPaper Pages: 299 - 312