individual publications

• academic article

  • Microbial population dynamics in an extreme environment: controlling factors in unvegetated talus soils at 3750m in the Colorado Rocky Mountains.  Biogeochemistry.  68:313-335. 2004
  • Soil microbial dynamics in Costa Rica: seasonal and biogeochemical constraints.  Biotropica.  36:184-195. 2004
  • The impacts of chronic nitrogen additions vary seasonally and by microbial functional group in tundra soils.  Biogeochemistry.  69:1-17. 2004
  • Fungal and bacterial responses to amino acid and phenolic compound additions in high altitude barren soil.  Soil Biology and Biochemistry.  34:989-995. 2002
  • Microbial biomass levels in high elevation vegetated and barren talus soils.  Soil Science Society of America Journal.  65:111-117. 2001
  • Soil ecological interactions: comparisons between tropical and subalpine forests.  Oecologia.  128:549-556. 2001

• chapter

  • Microbial competition and soil structure limit the expression of allelochemicals in nature.  Allelopathy: Procedures and Processes. 339-351. 1999

• document part

  • Specific microbes respond during substrate-induced respiration (SIR, SIGR) assays in soil 2001
  • Seasonal changes in microclimate and microbial populations in high elevation talus soils 2000
  • Microbial functional group characteristics along an organic matter gradient in talus soils at 4000m in the Colorado Rocky Mountains 1999
  • Biogeochemical diversity and growth of microbial communities in cold, unvegetated soils of Rocky Mountain talus fields (4000 m) 1998
  • Microbial community composition and activity in talus soils from above 3500m 1997