Timothy Fegel

Treesearch Publications

• Brianna Rick, Daniel McGrath, Benjamin Lehmann, Timothy Fegel, Keith Williams, Suzanne Anderson. 2025. A multimethod investigation of the Lake Agnes rock glacier, Colorado, USA
• David M. Barnard, Adam L. Mahood, Jacob A. Macdonald, Kaela K. Amundson, Timothy Fegel, Sean M. Gleason, Madeline Guimond, Sophie Kaiser, Kya Sparks, Michael J. Wilkins, Charles C. Rhoades. 2025. Indirect effects of soil amendments on plant traits and the microbiome in post-wildfire forest recovery
• Charles C. Rhoades, Mikaela J. Richardson, Timothy Fegel, Stephanie K. Kampf. 2025. Assessing the effects of woody mulch on post-fire soil and stream nitrogen at experimental and operational scales
• Sophia Kaiser, Timothy Fegel, David M. Barnard, Adam L. Mahood, Kya Sparks, Kaela K. Amundson, Michael J. Wilkins, Charles C. Rhoades. 2025. Long-term soil nutrient and understory plant responses to post-fire rehabilitation in a lodgepole pine forest
• Amelia R. Nelson, Charles C. Rhoades, Timothy Fegel, Holly K. Roth, Marcos V Caiafa, Sydney I Glassman, Thomas Borch, Michael J. Wilkins. 2024. Wildfire impact on soil microbiome life history traits and roles in ecosystem carbon cycling
• Jacob P. VanderRoest, Julie A. Fowler, Charles C. Rhoades, Holly K. Roth, Corey D. Broeckling, Timothy Fegel, Amy M. McKenna, Emily K. Bechtold, Claudia M. Boot, Michael J. Wilkins, Thomas Borch. 2024. Fire impacts on the soil metabolome and organic matter biodegradability
• Julie A. Fowler, Amelia R. Nelson, Emily K. Bechtold, Raegan Paul, Alexandra M. Wettengel, Michael A. McNorvell, Camille S. Stevens-Rumann, Timothy Fegel, Erik Anderson, Charles C. Rhoades, Michael J. Wilkins. 2024. Pile burns as a proxy for high severity wildfire impacts on soil microbiomes
• Amelia R. Nelson, Timothy Fegel, Robert E. Danczak, Marcos V Caiafa, Holly K. Roth, Oliver I Dunn, Cosette A. Turvold, Thomas Borch, Sydney I Glassman, Rebecca T. Barnes, Charles C. Rhoades, Michael J. Wilkins. 2024. Soil microbiome feedbacks during disturbance-driven forest ecosystem conversion
• Sarah J. Fischer, Timothy Fegel, Paul J. Wilkerson, Leah Rivera, Charles C. Rhoades, Fernando L. Rosario-Ortiz. 2023. Fluorescence and absorbance indices for dissolved organic matter from wildfire ash and burned watersheds
• E. Michael Thurman, Imma Ferrer, Mackenzie Bowden, Cresten Mansfeldt, Timothy Fegel, Charles C. Rhoades, Fernando Rosario-Ortiz. 2023. Occurrence of benzene polycarboxylic acids in ash and streamwater after the Cameron Peak Fire
• Marcos V Caiafa, Amelia R. Nelson, Thomas Borch, Holly K. Roth, Timothy Fegel, Charles C. Rhoades, Michael J. Wilkins, Sydney I Glassman. 2023. Distinct fungal and bacterial responses to fire severity and soil depth across a ten-year wildfire chronosequence in beetle-killed lodgepole pine forests
• Holly K. Roth, Amy M. McKenna, Myrna J. Simpson, Huan Chen, Nivetha Srikanthan, Timothy Fegel, Amelia R. Nelson, Charles C. Rhoades, Michael J. Wilkins, Thomas Borch. 2023. Effects of burn severity on organic nitrogen and carbon chemistry in high-elevation forest soils
• Charles C. Rhoades, Timothy Fegel, Robert M. Hubbard, Marin E. Chambers. 2022. Limited seed viability in long-dead serotinous lodgepole pine trees in the Southern Rockies, USA
• Holly K. Roth, Amelia R. Nelson, Amy M. McKenna, Timothy Fegel, Robert B. Young, Charles C. Rhoades, Michael J. Wilkins, Thomas Borch. 2022. Impact of beaver ponds on biogeochemistry of organic carbon and nitrogen along a fire-impacted stream
• Alexander S. Honeyman, Timothy Fegel, Henry F. Peel, Nicole A. Masters, David C. Vuono, William Kleiber, Charles C. Rhoades, John R. Spear. 2022. Statistical learning and uncommon soil microbiota explain biogeochemical responses after wildfire
• Amelia R. Nelson, Adrienne B. Narrowe, Charles C. Rhoades, Timothy Fegel, Rebecca A. Daly, Holly K. Roth, Rosalie K. Chu, Kaela K. Amundson, Robert B. Young, Andrei S. Steindorff, Stephen J. Mondo, Igor V Grigoriev, Asaf Salamov, Thomas Borch, Michael J. Wilkins. 2022. Wildfire-dependent changes in soil microbiome diversity and function
• Timothy Fegel, Claudia M. Boot, Timothy P. Covino, Kelly J. Elder, Edward K. Hall, Banning J. Starr, James Stegen, Charles C. Rhoades. 2021. Amount and reactivity of dissolved organic matter export are affected by land cover change from old‐growth to second‐growth forests in headwater ecosystems
• Nicholas A. Sutfin, Ellen Wohl, Timothy Fegel, Natalie Day, Laurel Lynch. 2021. Logjams and channel morphology influence sediment storage, transformation of organic matter, and carbon storage within mountain stream corridors
• Charles C. Rhoades, Timothy Fegel, Timothy P. Covino, Kathleen A. Dwire, Kelly J. Elder. 2021. Sources of variability in springwater chemistry in Fool Creek, a high-elevation catchment of the Rocky Mountains, Colorado, USA
• Charles C. Rhoades, Timothy Fegel, Tahir Zaman, Paula J. Fornwalt, Susan P. Miller. 2021. Are soil changes responsible for persistent slash pile burn scars in lodgepole pine forests?
• Timothy Fegel, Claudia M. Boot, Corey D. Broeckling, Jill S. Baron, Ed K. Hall. 2019. Assessing the chemistry and bioavailability of dissolved organic matter from glaciers and rock glaciers
• Laurel M. Lynch, Nicholas A. Sutfin, Timothy Fegel, Claudia M. Boot, Timothy P. Covino, Matthew D. Wallenstein. 2019. River channel connectivity shifts metabolite composition and dissolved organic matter chemistry
• Alex T. Chow, Kuo-Pei Tsai, Timothy Fegel, Derek Pierson, Charles C. Rhoades. 2019. Lasting effects of wildfire on disinfection by-product formation in forest catchments
• Charles C. Rhoades, Alex T. Chow, Timothy P. Covino, Timothy Fegel, Derek Pierson, Allison E. Rhea. 2019. The legacy of a severe wildfire on stream nitrogen and carbon in headwater catchments
• Charles C. Rhoades, Kerri L. Minatre, Derek Pierson, Timothy Fegel, M. Francesca Cotrufo, Eugene F. Kelly. 2017. Examining the potential of forest residue-based amendments for post-wildfire rehabilitation in Colorado, USA

• Program
  

  Water and Watersheds

  https://research.fs.usda.gov/rmrs/programs/waterwatersheds
  Station

  Rocky Mountain Research Station
• Laboratory
  

  Fort Collins Biogeochemistry Laboratory

  https://research.fs.usda.gov/rmrs/labs/locations/fort-collins-biogeochemistry-laboratory
  Station

  Rocky Mountain Research Station

Articles

• Article
  

  Occurrence of benzene polycarboxylic acids in ash and streamwater after the Cameron Peak Fire

  https://research.fs.usda.gov/rmrs/articles/occurrence-benzene-polycarboxylic-acids-ash-and-streamwater-after-cameron-peak-fire
• Article
  

  Beaver ponds as biogeochemical hotspots in burned watersheds

  https://research.fs.usda.gov/rmrs/articles/beaver-ponds-biogeochemical-hotspots-burned-watersheds