Meyer, A.F., D.A. Lipson C.W. Schadt, A.P. Martin and S.K. Schmidt. 2004. Molecular and metabolic characterization of cold tolerant, alpine soil Pseudomonas, sensu stricto. Appl. Environ. Microbiol. 70: 483-489.
Schmidt, S.K., D.A. Lipson, R.E. Ley, M.C. Fisk and A.E. West. 2004. Impacts of chronic nitrogen additions vary seasonally and by microbial functional group in tundra soils. Biogeochemistry 69: 1-17. [abstract]
Nemergut, D.R., A.P. Martin and S.K. Schmidt. 2004. Integron diversity in heavy metal contaminated mine tailings and inferences about integron origin and evolution. Appl. Environ. Microbiol. 70: 1160-1168.
Lipson, D.A. and S.K. Schmidt. 2004. Seasonal changes in an alpine soil bacterial community in the Colorado Rocky Mountains. Appl. Environ. Microbiol. 70: 2867-2879.
Schmidt, S.K. and D.A. Lipson. 2004. Microbial growth under the snow; Implications for nutrient and alleochemical availability in temperate soils. Plant and Soil 259: 1-7. [abstract]
Ley, R.E., M.W. Williams and S.K. Schmidt. 2004. Microbial population dynamics in an extreme environment: Controlling factors in talus soils at 3750m in the Colorado Rocky Mountains. Biogeochemistry 68: 313-335.
Cleveland, C.C., A.R. Townsend, B.C. Constance, R.E. Ley & S.K. Schmidt. 2004. Soil microbial dynamics in Costa Rica: Seasonal and biogeochemical constraints. Biotropica (In Press).
Martin, A.P., E.K. Costello, A.F. Meyer, D.R. Nemergut & S.K. Schmidt. 2004. The rate and pattern of cladogenesis in microbes. Evolution 58; 946-955
Schadt, C.W., A.P. Martin, D.A. Lipson and S.K. Schmidt. 2003. Seasonal dynamics of novel fungal lineages in tundra soils. Science 301: 1359-1361. (For links to abstract and full text, see Publications and Presentations in the Alpine Microbial Observatory website)
Nemergut, D. and S.K. Schmidt. 2002. Disruption of narH, narJ and moaE Inhibits Heterotrophic Nitrification in Pseudomonas strain M19. Appl. Environ. Microbiol. 68: 6462-6465.
Lipson, D.A., C.W. Schadt and S.K. Schmidt. 2002. Changes in microbial community structure and function in an alpine dry meadow following spring snow melt. Microbial Ecol. 43: 307-314.
Cleveland, C.C., A.R. Townsend and S.K. Schmidt. 2002. Phosphorus limitation of microbial processes in moist tropical forests: Evidence from short-term laboratory incubations and field studies. Ecosystems 5: 680-691.
West, A.E. and S.K. Schmidt. 2002. Endogenous methanogenesis stimulates oxidation of atmospheric CH4 in alpine tundra soil. Microbial Ecol. 43: 408-415.
Ley, R.E. and S.K. Schmidt. 2002. Fungal and bacterial responses to phenolic compounds and amino acids in high altitude barren soils. Soil Biol. Biochem. 34: 989-995. [abstract]
Lipson, D.L. and S.K. Schmidt. 2002. Kinetics of microbial processes and population growth in soil. pp. 1748-1757. In, Encyclopedia of Environmental Microbiology. Wiley, New York.
Schadt, C.W., R.B. Mullen and S.K. Schmidt. 2001. Isolation and phylogenetic identification of a dark-septate fungus associated with the alpine plant Ranunculus adoneus. New Phytologist 150: 747-755. [abstract]
Ley, R.E., D.A. Lipson and S.K. Schmidt. 2001. Microbial biomass levels in barren and vegetated high altitude talus soils. Soil Sci. Soc. Am. J. 65: 111-117. [abstract]
Schmidt, S.K., A.E. West, P.D. Brooks, L. Smith, C. Jaeger, M.C. Fisk and E. Holland. 2001. Soil-atmosphere gas exchange across an alpine tundra landscape, In Alpine Dynamics: The structure and function of an alpine ecosystem. (W. Bowman and T. Seastedt, eds.). Oxford University Press.
Gonzalez, G., R.E. Ley, S.K. Schmidt, X. Zou and T.R. Seastedt. 2001. Soil ecological interactions: Comparisons between tropical and subalpine forests. Oecologia. [abstract]
Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. An empirical model of amino acid transformations in alpine soil. Soil Biol. Biochem. 33: 189-198. [abstract]
Fisk, M.C., P.D. Brooks and S.K. Schmidt. 2001. Nitrogen cycling in an alpine ecosystem. In Alpine Dynamics: The structure and function of an alpine ecosystem, Niwot Ridge, Colorado. (W. Bowman and T. Seastedt, eds.). Oxford University Press.
Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. Carbon availability and temperature control the post-snowmelt decline in alpine soil microbial biomass. Soil Biol. Biochem. 32: 441-448. [abstract]
Schmidt, S.K. and K.M. Scow. 2001. Use of Bioreactors and Microcosms to assess the biodegradation potential of soils. IN Manual of environmental microbiology (2nd. ed.). (M.V. Walter et al., eds.). American Society for Microbiology Press, Washington D.C.
Schmidt, S.K., D.A. Lipson and T.K. Raab. 2000. Effects of willows (Salix brachycarpa) on populations of salicylate-mineralizing microorganisms in alpine soils. J. Chem. Ecol. 26: 2049-2057. [abstract]
Colores, G.M. and S.K. Schmidt. 1999. Colonization of contaminated soil by an introduced bacterium: effects of initial pentachlorophenol levels on the survival of Sphingomonas chlorophenolica strain RA2. J. Indust. Microbiol. & Biotechnol. 23: 326-331. [abstract]
West, A.E. and S.K. Schmidt. 1999. Acetate stimulates atmospheric CH4 oxidation by an alpine tundra soil. Soil Biol. Biochem. 31: 1649-1655. [abstract]
Schmidt, S.K. and R. Ley. 1999. Microbial competition and bioavailability limit the expression of allelochemicals in natural soils. In Principles and Practices in Plant Ecology: Allelochemical Interactions. (S. Inderjit, K.M. Dakshini & C.L. Foy, eds.). CRC Press, Boca Raton, Florida. [abstract]
Lipson, D.A., S.K. Schmidt, C.W. Schadt and R.K. Monson. 1999. Ectomycorrhizal transfer of amino acid-N to the alpine sedge, Kobresia myosuroides. New Phytol. 142: 163-167. [abstract]
Lipson, D.A., T.K. Raab, S.K. Schmidt and R.K. Monson. 1999. Variation in competitive abilities of plants and microbes for specific amino acids. Biol. Fertil. Soils 29: 257-261. [abstract]
Jaeger, C.H., R.K. Monson, M.C. Fisk and S.K. Schmidt. 1999. Seasonal partitioning of nitrogen by plants and soil microorganisms in an alpine ecosystem. Ecology 80: 1883-1891. [abstract]
Lipson, D.A., S.K. Schmidt and R.K. Monson. 1999. Links between microbial population dynamics and nitrogen availability in an alpine ecosystem. Ecology 80: 1623-1631 (full text). [abstract]
West, A.E., P.D. Brooks, M.C. Fisk, L. Smith, E. Holland, C.H. Jaeger, S. Babcock, R. Kai and S.K. Schmidt. 1999. Landscape patterns of CH4 fluxes in an alpine tundra ecosystem. Biogeochemistry 45: 243-264. [abstract]
Wickland, K.P., R.G. Striegl, S.K. Schimdt and M.A. Mast. 1999. Methane flux in subalpine wetland and unsaturated soils in the southern Rocky Mountains. Global Biogeochemical Cycles 13: 101-113.[abstract]
Fisk, M.C., S.K. Schmidt and T. Seastedt. 1998. Topographic patterns of above- and belowground production and nitrogen cycling in alpine tundra. Ecology 79: 2253-2266. [abstract]
West, A.E. and S.K. Schmidt. 1998. Wetting stimulates atmospheric CH4 oxidation by alpine tundra soil. FEMS Microbiol. Ecol. 24: 349-353. [abstract]
Mullen, R.B., S.K. Schmidt and C.H. Jaeger III. 1998. Nitrogen uptake during snowmelt by the snow buttercup, Ranunculus adoneus. Arctic & Alpine Res. 30: 121-125. [abstract]
Brooks, P.D., M.W. Williams and S. K. Schmidt. 1998. Inorganic N and microbial biomass dynamics before and during spring snowmelt. Biogeochemistry 43: 1-15 [abstract]
Brooks, P.D., S.K. Schmidt and M.W. Williams. 1997. Winter production of CO2 and N2O from alpine tundra: environmental controls and relationship to inter-system C and N fluxes. Oecologia 110: 403-413. [abstract]
Colores, G.M., S.K. Schmidt and M.C. Fisk. 1996. Estimating the biomass of microbial functional groups using rates of growth-related soil respiration. Soil Biol. Biochem. 28: 1569-1577. [abstract]
Schmidt, S.K. and K.M. Scow. 1996. Use of soil bioreactors and microcosms in bioremediation research. Chapter 16, IN Manual of environmental microbiology. (M.V. Walter, ed.). American Society for Microbiology Press, Washington D.C. [abstract]
Fisk, M.C. and S.K. Schmidt. 1996. Microbial responses to excess nitrogen in alpine tundra soils. Soil Biol. Biochem. 28: 751-755. [abstract]
Bowman, W.D., J.C. Schardt and S.K. Schmidt. 1996. Symbiotic N2 fixation in alpine tundra: Ecosystem input and variation in fixation rates among communities. Oecologia 108: 345-350. [abstract]
Hess, T.F., S.K. Schmidt and G.M. Colores. 1996. Maintenance energy model for microbial degradation of toxic chemicals in soil. Soil Biol. Biochem. 28: 907-915. [abstract]
Brooks, P.D., M.W. Williams and S.K. Schmidt. 1996. Microbial activity under alpine snowpacks. Biogeochemistry 32: 93-113 [abstract]
Fisk, M.C. and S.K. Schmidt 1995. Nitrogen mineralization and microbial biomass N dynamics in three alpine tundra communities. Soil Sci. Soc. Am. J. 59: 1036-1043. [abstract]
Schmidt, S.K., G.M. Colores, T.F. Hess and P.M. Radehaus. 1995. A simple method for quantifying activity and survival of microorganisms involved in bioremediation processes Appl. Biochem. Biotechnol. 54: 259-270. [abstract]
Brooks, P.D., M.W. Williams, D.A. Walker and S.K. Schmidt. 1995. The Niwot Ridge snow fence experiment: biogeochemical responses to changes in the seasonal snowpack. pp. 293-302. In Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.) IAHS Publications. [abstract]
Hess, T.F. and S.K. Schmidt. 1995. Improved procedure for obtaining statistically valid parameter estimates from soil respiration data. Soil Biol. Biochem. 27: 1-7. [abstract]
Brooks, P.D., M.W. Williams and S.K. Schmidt. 1995. Snowpack controls on soil nitrogen dynamics in the Colorado alpine. pp. 283-292. IN Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.) IAHS Publications. [abstract]
Colores, G.M., P.M. Radehaus and S.K. Schmidt. 1995. Use of a pentachlorophenol degrading bacterium to bioremediate heavily contaminated soil. Appl. Biochem. Biotechnol. 54: 271-275. [abstract]
Neff, J.C., W.D. Bowman, E.A. Holland, M.C. Fisk and S.K. Schmidt. 1994. Fluxes of nitrous oxide and methane from nitrogen amended soils in the Colorado Alpine. Biogeochemistry 27: 23-33 [abstract]
Brooks, P.D., S.K. Schmidt, D. Sommerfeld and R. Musselman. 1994. Distribution and abundance of microbial biomass in Rocky Mountain spring snowpacks. Proc. E. Snow Conference. 50: 301-306.
Mullen, R.B. and S.K. Schmidt. 1993. Mycorrhizal infection, phosphorus uptake, and phenology in Ranunculus adoneus : Implications for the functioning of mycorrhizae in alpine systems. Oecologia 94: 229-234. [abstract]