Scott Bridgham
Professor
B.A., English, with Highest Honors, University of Maine, Orono, 1980
B.A., Zoology, with Highest Honors, University of Maine, Orono, 1982
M.S., Ecology, University of Minnesota, 1986
Ph.D., Wetland Ecology, Duke University, 1991

EMAIL: bridgham@uoregon.edu

Bridgham Curriculum Vitae

Scott at work:

Scott at play:

Recently Funded Research Projects:

• Why does the efficiency of methane production vary dramatically among wetlands?


• The Interactions of Climate Change, Land Management Policies and Forest Succession on Fire Hazard and Ecosystem Trajectories in the Wildland-Urban Interface


• Beyond the Monod equation: Developing a New Theory of Geomicrobial Kinetics

Selected Ongoing and Recent Research Projects:

• Global Change Feedbacks on Trace Gas Fluxes in Wetlands


• A Carbon Budget for North American Wetlands


• Interactive Effects of Climate Change, Wetlands, and Dissolved Organic Matter on UV Damage to Aquatic Foodwebs


• Manipulative Climate Change Experiment on Peatlands in Minnesota


• Nutrient Dynamics in Wetlands


• A Landscape-Level Approach to Fuels Management Through Ecological Restoration: Developing a Knowledge Base for Application to Historic Oak-Pine Savanna


• Wetland Restoration


• The Effects of Invasive Grasses on Ecosystem Function of a Freshwater Marsh and Estuarine Marsh

Selected Publications:

1. Bridgham, S. D., S. P. Faulkner, and C. J. Richardson.  1991.  Steel rod oxidation as a hydrologic indicator in wetland soils. Soil Science Society of America Journal 55:856-862.  PDF


2. Bridgham, S. D., C. J. Richardson, E. Maltby, and S. P. Faulkner.  1991.  Cellulose decay in natural and disturbed peatlands in North Carolina, U.S.A.  Journal of Environmental Quality 20:695-701.  PDF


3. Bridgham, S. D. and C. J. Richardson.  1992.  Mechanisms controlling soil respiration (CO2 and CH4) in southern peatlands.  Soil Biology and Biochemistry 20:1089-1099.  PDF


4. Bridgham, S.D. and C. J. Richardson.  1993.  Hydrology and nutrient gradients in North Carolina peatlands.  Wetlands 13:207-218.  PDF


5. Bridgham, S. D., J. Pastor, C. A. McClaugherty, and C. J. Richardson.  1995.  Nutrient-use efficiency: a litterfall index, a model, and a test along a nutrient availability gradient in North Carolina peatlands.  American Naturalist 145:1-21.  PDF


6. Updegraff, K., J. Pastor, S. D. Bridgham, and C. A. Johnston.  1995.  Environmental and substrate controls over carbon and nitrogen mineralization in northern wetlands.  Ecological Applications 5:151-163. PDF


7. Bridgham, S. D., C. A. Johnston, J. Pastor, and K. Updegraff.  1995.  Potential feedbacks of northern wetlands on climate change.  BioScience 45:262-274. PDF


8. Bridgham, S. D., J. Pastor, J. A. Janssens, C. Chapin, and T. J. Malterer.  1996.  Multiple limiting gradients in peatlands:  A call for a new paradigm.  Wetlands 16:45-65. PDF


9. Johnston, C. A., J. P. Schubauer-Berigan and S. D. Bridgham.  1997.  The potential role of riverine wetlands as buffer zones.  Pages 155-170 in  Buffer Zones: Their Processes and Potential in Water Protection, N. E. Haycock, T.P. Burt, K.W.T. Goulding, and G. Pinay, eds.  Quest Environmental, Harpenden, UK. PDF


10. Bridgham, S. D., K. Updegraff and J. Pastor.  1998.  Carbon, nitrogen, and phosphorus mineralization in northern wetlands.  Ecology 79:1545-1561. PDF


11. Updegraff, K., S. D. Bridgham, J. Pastor, and P. Weishampel.  1998.  Hysteresis in the temperature response of carbon dioxide and methane production in peat soils.  Biogeochemistry 43:253-272. PDF


12. Pastor, J., and S. D. Bridgham.  1999.  Nutrient efficiency along nutrient availability gradients.  Oecologia 118:50-58. PDF


13. Bridgham, S. D., J. Pastor, K. Updegraff, T. J. Malterer, K. Johnson, C. Harth, and J. Chen.  1999.  Ecosystem control over temperature and energy flux in northern peatlands.  Ecological Applications 9: 1345-1358. PDF


14. Bridgham, S. D., C.-L. Ping , J. L. Richardson, and K. Updegraff.  2000.  Soils of Northern Peatlands: Histosols and Gelisols.  Pages 343-370 in Wetland Soils: Genesis, Hydrology, Landscapes, and Classification, J. L. Richardson and M. J. Vepraskas, eds., Lewis Publishers, Boca Raton, FL. PDF


15. Weltzin, J. F., J. Pastor, C. Harth, S. D. Bridgham, K. Updegraff, and C. T. Chapin.  2000.  Response of bog and fen plant communities to warming and water-table manipulations.  Ecology 81: 3464-3478. PDF


16. Updegraff, K., S. D. Bridgham, J. Pastor, P. Weishampel, and C. Harth.  2001.  Response of CO2 and CH4 emissions in peatlands to warming and water-table manipulation.  Ecological Applications 11: 311-326. PDF


17. Bridgham, S. D., K. Updegraff, and J. Pastor.  2001.  A comparison of nutrient availability indices along an ombrotrophic—minerotrophic gradient in Minnesota wetlands.  Soil Science Society of America 65:259-269. PDF


18. Bridgham, S. D., C. A. Johnston, J. P. Schubauer-Berigan, and P. Weishampel.  2001.  Phosphorus sorption dynamics in soils and coupling with surface and pore water in riverine wetlands.  Soil Science Society of America Journal 65: 577-588. PDF


19. Johnston, C. A., S. D. Bridgham, and J. P. Schubauer-Berigan.  2001.  Nutrient dynamics in relation to geomorphology of riverine wetlands.  Soil Science Society of America Journal 65:557-577. PDF


20. Weltzin, J. F., C. Harth, S. D. Bridgham, J. Pastor, and M. Vonderharr.  2001.  Production and microtopography of bog bryophytes: response to warming and water-table manipulations.  Oecologia 128: 557-565. PDF


21. Kellogg, C. H., and S. D. Bridgham.  2002.  Colonization during early succession of restored freshwater marshes.  Canadian Journal of Botany 80: 176-185. PDF


22. Pastor, J., B. Peckham, S. Bridgham, J. Weltzin, and J. Chen.  2002.  Plant dynamics, nutrient cycling, and multiple stable equilibria in peatlands.  American Naturalist 160:553-568. PDF


23. Weltzin, J. F., S. D. Bridgham, J. Pastor, J. Chen, and C. Harth.  2003.  Potential effects of warming and drying on peatland plant community composition.  Global Change Biology 9:1-11. PDF


24. Pastor, J., J. Solin, S. D. Bridgham, K. Updegraff, C. Harth, P. Weishampel, and B. Dewey.  2003.  Global warming and the export of dissolved organic carbon from boreal peatlands.  Oikos 100: 380-386.. PDF


25. Kellogg, L. E. and S. D. Bridgham.  2003.  Phosphorous retention and movement compared across an ombrotrophic-minerotrophic gradient in Michigan.  Biogeochemistry 63:299-315. PDF


26. Kellogg, C. H., S. D. Bridgham, and S. A. Leicht.  2003.  Effects of water level, shade and time on germination and growth of freshwater marsh plants along a simulated successional gradient.  Journal of Ecology 91:274-282. PDF


27. Vile, M. A., S. D. Bridgham, R. K. Wieder, and M. Novák.  2003.  Atmospheric sulfur deposition alters pathways of gaseous carbon production in peatlands.  Global Biogeochemical Cycles 17:1058-1064. PDF


28. Vile, M. A., S. D. Bridgham, and R. K. Wieder. 2003.  Response of anaerobic carbon mineralization rates to sulfate amendments in a boreal peatland.  Ecological Applications 13:720-734. PDF


29. Bridgham, S. D., and C. J. Richardson.  2003.  Endogenous versus exogenous nutrient control over decomposition in North Carolina peatlands.  Biogeochemistry 65:151-178. PDF


30. Xenopoulos, M. A., D. M. Lodge, J. Frentress, T. A. Kreps S. D.  Bridgham, E. Grossman, and C. J. Jackson.  2003.  Regional comparisons of watershed determinants of dissolved organic carbon in temperate lakes from the Upper Great Lakes region and selected regions globally.  Limnology and Oceanography 48:2321-2334. PDF


31. Bauer, C. R.,  C. H. Kellogg, S. D. Bridgham, and G. A. Lamberti.  2003.  Mycorrhizal colonization across hydrologic gradients in restored and reference freshwater wetlands.  Wetlands 23:961-968. PDF


32. Lilienfein, J.,  R. G. Qualls, S. M. Uselman, andS. D. Bridgham.  2003.  Soil formation and organic matter accretion in a young andesitic chronosequence at Mt Shasta, California.  Geoderma 116:249-264. PDF


33. Keller, J. K., J. R. White, S. D. Bridgham, and J. Pastor. 2004.  Climate change effects on carbon and nitrogen mineralization in peatlands through changes in soil quality.  Global Change Biology 10:1053-1064. PDF


34. Lilienfein, J., R. G. Qualls, S. M. Uselman, and S. D. Bridgham.  2004.  Adsorption of dissolved organic carbon and nitrogen in soils of a weathering chronosequence.  Soil Science Society of America Journal 68:292-305. PDF


35. Lilienfein, J., R. G. Qualls, S. M. Uselman, and S. D. Bridgham.  2004.  Adsorption of dissolved organic and inorganic phosphorus in soils of a weathering chronosequence.  Soil Science Society of America Journal 68:620-628. PDF


36. Chapin, C. T., S. D. Bridgham, and J. Pastor.  2004.  pH and nutrient effects on above-ground net primary production in a Minnesota, USA bog and fen.  Wetlands 24:186-201. PDF


37. Kellogg, C. H., and S. D. Bridgham.  2004.  Effects of disturbance, seed bank, and herbivory on dominance of an invasive grass.  Biological Invasions 6:319-329. PDF


38. Noormets, A., J. Chen, S. D. Bridgham, J. F. Weltzin, J. Pastor, B. Dewey, and J. LeMoine.  2004.  The effects of infrared loading and water table on soil energy fluxes in northern peatlands.  Ecosystems 7:573-582. PDF


39. Pendall, E., S. Bridgham, P. J. Hanson, B. Hungate, D. W. Kicklighter, D. W. Johnson, B. E. Law, Y. Luo, J. P. Megonigal, M. Olsrud, M. G. Ryan,  and S. Wan. 2004.  Below-ground process responses to elevated CO2 and temperature: a discussion of observations, measurement methods, and models.  New Phytologist 162:311-322. PDF


40. Young, K. C., P. A. Maurice, K. M. Docherty, and S. D. Bridgham.  2004.  Bacterial degradation of dissolved organic matter from two northern Michigan streams.  Geomicrobiology Journal 21:521-528. PDF


41. Keller, J. K., S. D. Bridgham, C. T. Chapin, and C. M. Iversen.  2005.  Limited effects of six years of fertilization on carbon mineralization dynamics in a Minnesota fen.  Soil Biology and Biochemistry 37(6):1197-1204. . PDF


42. Frost, P. C.,J. H. Larson, L. E. Kinsman, G. A. Lamberti, and S. D. Bridgham.  2005.  Attenuation of ultraviolet radiation in streams of northern Michigan.  Journal of the North American Benthological Society 24:246-255. PDF


43. Weltzin, J. F., J. K. Keller, S. D. Bridgham, J. Pastor, P. B. Allen, and J. Chen.  2005.  Litter controls plant community composition in a northern fen.  Oikos 110:537-546. PDF


44. Young, K. C. , K. M. Docherty, P. A. Maurice, and S. D. Bridgham.  2005.  Degradation of surface-water dissolved organic matter:  influences of DOM chemical composition and microbial populations.  Hydrobiologia 539:1-11.  PDF


45. Qualls, R. G. and S. D. Bridgham.  2005.  Mineralization rate of 14C labeled dissolved organic matter from leaf litter in soils from a weathering chronosequence.  Soil Biology and Biochemistry 37:905-916. PDF


46. Frost, P. C., J. H. Larson, C. A. Johnston, K. C. Young, P. A. Maurice, G. A. Lamberti, and S. D. Bridgham.  2006.  Landscape predictors of stream dissolved organic matter concentration and physicochemistry in a Lake Superior river watershed.  Aquatic Sciences 68:40-51. PDF


47. Frost, P. C., A. Mack, J. H. Larson, S. D. Bridgham, and G. A. Lamberti.  2006.  Environmental controls of UV radiation in forested streams of northern Michigan.  Photochemistry and Photobiology 82:781–786. PDF


48. Wu, K., C. Johnston, C. Cherrier, S. Bridgham, and B. Shmagin.  2006.  Hydrologic calibration of the SWAT model in a Great Lakes coastal watershed.  Pages 15-28 in Coastal Hydrology and Processes, V.P. Singh and Y. Jun Xu, eds., Proceedings of the American Institute of Hydrology 25th Anniversary Meeting & International Conference, “Challenges in Coastal Hydrology and Water Management.” Water Resources Publications, Highlands Ranch, CO. PDF


49. Kellogg, L. E., S. D. Bridgham, and D. López-Hernández.  2006.  A comparison of four methods of measuring gross phosphorus mineralization.  Soil Science Society of America Journal 70:1349-1358. PDF


50. Keller, J. K., A. K. Bauers, S. D. Bridgham, L. E. Kellogg, and C. M. Iversen.  2006.  Nutrient control of microbial carbon cycling along an ombrotrophic-minerotrophic peatland gradient.  Journal of Geophysical Research—Biogeosciences 111, G03006, doi:10.1029/2005JG000152. PDF


51. Ogram, A., S. Bridgham, R. Corstanje, H. Drake, K. Küsel, A. Mills, S. Newman, K. Portier, and R. Wetzel.  2006.  Linkages between microbial community composition and biogeochemical processes across scales.  Pages 239-270 in Wetlands and Natural Resource Management, J. T. A. Verhoeven, B. Beltman, R. Bobbink, and D. F. Whigham, eds., Springer, New York. PDF


52. Docherty, K. M., K. C. Young, P. A. Maurice, and S. D. Bridgham. 2006. Dissolved organic matter concentration and quality influences upon structure and function of freshwater microbial communities.  Microbial Ecology 52:378-388. PDF

*
53. Frost, P. C., C. T. Cherrier, J. H. Larson, S. Bridgham, and G. A. Lamberti.  2007  Effects of dissolved organic matter and ultraviolet radiation on the accrual, stoichiometry, and algal taxonomy of stream periphyton.  Freshwater Biology 52:319-330. PDF


54. Keller, J. K. and S. D. Bridgham.  2007.  Pathways of anaerobic carbon cycling across an ombrotrophic-minerotrophic peatland gradient.  Limnology and Oceanography 52:96-107. PDF


55. Larson, J. H., P. C. Frost, Z. Zheng, C. A. Johnston, S. D. Bridgham, D. M. Lodge, and G. A. Lamberti.  2007.  Effects of upstream lakes on dissolved organic matter in streams.  Limnology and Oceanography 52:60-69. PDF


56. Bridgham, S. D., J. P. Megonigal, J. K. Keller, N. B. Bliss, and C. Trettin.  2006.  The carbon balance of North American wetlands.  Wetlands 26:889-916.  (selected for Faculty of 1000 Biology) PDF


57. Bridgham, S. D., J. P. Megonigal, J. K. Keller, C. Trettin, and N. B. Bliss. 2007.  Wetlands. The North America carbon budget past and present.  Pages 139 – 148 in The First State of the Carbon Cycle Report (SOCCR): North American Carbon Budget and Implications for the Global Carbon Cycle.  A report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research, A. W. King, L. Dilling. G. P. Zimmerman, D. M. Fairman, R. A. Houghton, G. H. Marland, A. Z. Rose, and T. J. Wilbanks, eds., National Climatic Data Center, Asheville, NC, 242 pp. PDFa PDFb


58. Pacala, S., R. Birdsey, S. Bridgham, R. T. Conant, K. Davis, B. Hales, R. Houghton, J. C. Jenkins, M. Johnston, G. Marland, K. Paustian, and S. C. Wofsy.  2007.  The North America carbon budget past and present.  Pages 29 – 36 in The First State of the Carbon Cycle Report (SOCCR): North American Carbon Budget and Implications for the Global Carbon Cycle.  A report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research, A. W. King, L. Dilling. G. P. Zimmerman, D. M. Fairman, R. A. Houghton, G. H. Marland, A. Z. Rose, and T. J. Wilbanks, eds., National Climatic Data Center, Asheville, NC, 242 pp. PDF


59. Pfeifer-Meister, L. and S. D. Bridgham.  2007.  Seasonal and spatial controls over nutrient cycling in a Pacific Northwest prairie.  Ecosystems 10:1250-1260.  PDF


60. Pfeifer-Meister, L., E. Cole, B. A. Roy, and S. D. Bridgham.  2008.  Abiotic constraints on the competitive ability of exotic and native grasses in a Pacific Northwest prairie.  Oecologia 155:357-366. PDF


61. White, J. R., R. D. Shannon, J. F. Weltzin, J. Pastor, and S. D. Bridgham.  2008.  Effects of soil warming and drying on methane cycling in a northern peatland mesocosm study.  Journal of Geophysical Research—Biogeosciences, 113, G00A06, doi:10.1029/2007JG000609. PDF


62. Johnston, C. A., B. A. Shmagin, P. C. Frost, C. Cherrier, J. H. Larson, G. A. Lamberti, and S. D. Bridgham.  In Press.  Wetland types and wetland maps differ in ability to predict dissolved organic carbon concentrations in northern Michigan streams.  Science of the Total Environment. PDF


63. Bridgham, S. D., J. Pastor, B. Dewey, J. F. Weltzin, and K. Updegraff.  In press.  Rapid carbon response of peatlands to climate change.  Ecology.


64. J. Chen, S. D. Bridgham, J. K. Keller, J. Pastor, A. Noormets, and J. F. Weltzin.  In press.  Temperature responses to infrared-loading and water table manipulations in peatland mesocosms.  Journal of Integrative Plant Biology.