Jens Stevens, PhD

Acting Program Manager, PNW Fire Fuels & Smoke Research

Pacific Northwest Research Station

0000-0002-2234-1960

jens.stevens@usda.gov

Publications & Products
Related
Education

Treesearch Publications

Laura A. E. Marshall, Paula J. Fornwalt, Camille S. Stevens-Rumann, Kyle C. Rodman, Teresa B. Chapman, Catherine A. Schloegel, Jens Stevens. 2024. What influences planted tree seedling survival in burned Colorado montane forests?
Lara T. Murray, Christopher W. W. Woodall, Andrew J. Lister, Keith Stockmann, Hongmei Gu, Shawn P. Urbanski, Karin Riley, Eric J. Greenfield, Christopher Farley, Hans Andersen, Linda S. Heath, Jeff W. Atkins, Grant M. Domke, Andrew C. Oishi, James Smith, Richard Birdsey, David Skole, Stephen Prisley, Anthony D’Amato, Ethan Belair, Eric Marland, Prakash Nepal, Poonam Khatri, Indroneil Ganguly, Richard Bergman, Kamalakanta Sahoo, John D. Shaw, Jens Stevens, Thomas Buchholz, John Gunn, Lisa McCauley, Joe Fargione, Alexis Ellis, David J. Nowak, Mark Majewsky, Christopher Mihiar. 2024. Quantifying greenhouse gas sources and sinks in managed forest systems
Michael T. Stoddard, Kyle C. Rodman, David W. Huffman, Paula J. Fornwalt, Rory J. Pedersen, Judith D. Springer, Daniel C. Laughlin, Christopher M. McGlone, Mark L. Daniels, Peter Z. Fule, Margaret M. Moore, Becky K. Kerns, Jens Stevens, Julie E. Korb, Sara Souther. 2024. Increases in understory plant cover and richness persist following restoration treatments in Pinus ponderosa forests
Janet S. Prevéy, Catherine S. Jarnevich, Ian S. Pearse, Seth M. Munson, Jens Stevens, Kevin J. Barrett, Jonathan D. Coop, Michelle A. Day, David Firmage, Paula J. Fornwalt, Katharine M. Haynes, James D. Johnston, Becky K. Kerns, Meg A. Krawchuk, Becky A. Miller, Ty C. Nietupski, Jacquilyn Roque, Judith D. Springer, Camille S. Stevens‑Rumann, Michael T. Stoddard, Claire Tortorelli. 2024. Non‑native plant invasion after fire in western USA varies by functional type and with climate
Lisa A. McCauley, Nicholas Povak, Kristen L. Shive, Edward Smith, Jens Stevens, Camille S. Stevens-Rumann, lan H. Taylor, Alan J. Tepley, Derek J. N. Young, Robert A. Andrus, Mike A. Battaglia, Julia K. Berkey, Sebastian Busby, Amanda R. Carlson, Marin E. Chambers, Erich Dodson, Daniel C. Donato, William M. Downing, Paula J. Fornwalt, Joshua S. Halofsky, Ashley Hoffman, Andres Holz, Jose Iniguez, Meg A. Krawchuk, Mark R. Kreider, Andrew J. Larson, Garrett W. Meigs, John Paul Roccaforte, Monica T. Rother, Hugh Safford, Michael Schaedel, Jason S. Sibold, Megan P. Singleton, Monica G. Turner, Alexandra K. Urza, Kyra D. Clark-Wolf, Larissa Yocom, Joseph B. Fontaine, John L. Campbell, Kimberley T. Davis, Marcos D. Robles, Kerry B. Kemp, Philip E. Higuera, Teresa Chapman, Kerry L. Metlen, Jamie L. Peeler, Kyle C. Rodman, Travis Woolley, Robert N. Addington, Brian J. Buma, C. Alina Cansler, Michael J. Case, Brandon M. Collins, Jonathan D. Coop, Solomon Z. Dobrowski, Nathan S. Gill, Collin Haffey, Lucas B. Harris, Brian J. Harvey, Ryan D. Haugo, Matthew D. Hurteau, Dominik Kulakowski, Caitlin E. Littlefield. 2023. Reduced fire severity offers near-term buffer to climate-driven declines in conifer resilience across the western United States
Kyle Rodman, Paula J. Fornwalt, Teresa Chapman, Jonathan Coop, Gloria Edwards, Jens Stevens, Thomas Veblen. 2022. SRRT: A decision support tool to inform postfire reforestation of ponderosa pine and Douglas-fir in the southern Rocky Mountains
Christopher H. Guiterman, Rachel M. Gregg, Laura A. E. Marshall, Jill J. Beckmann, Phillip J. van Mantgem, Donald A. Falk, Jon E. Keeley, Anthony C. Caprio, Jonathan D. Coop, Paula J. Fornwalt, Collin Haffey, R. Keala Hagmann, Stephen T. Jackson, Ann M. Lynch, Ellis Q. Margolis, Christopher Marks, Marc D. Meyer, Hugh Safford, Alexandra Dunya Syphard, Alan Taylor, Craig Wilcox, Dennis Carril, Carolyn A. F. Enquist, David Huffman, Jose Iniguez, Nicole A. Molinari, Christina Restaino, Jens Stevens. 2022. Type conversion in the US southwest: frontline observations and management responses
Brandon M. Collins, Alexis Bernal, Robert A. York, Jens Stevens, Andrew Juska, Scott L. Stephens. 2021. Mixed‐conifer forest reference conditions for privately owned timberland in the southern Cascade Range
Ian B. Moore, Brandon M. Collins, Daniel Foster, Ryan E. Tompkins, Jens Stevens, Scott L. Stephens. 2021. Variability in wildland fuel patches following high-severity fire and post-fire treatments in the northern Sierra Nevada
Jens Stevens, Collin M. Haffey, Jonathan D. Coop, Paula J. Fornwalt, Larissa Yocom, Craig D. Allen, Anne Bradley, Owen T. Burney, Dennis Carril, Marin E. Chambers, Teresa B. Chapman, Sandra L. Haire, Matthew D. Hurteau, Jose Iniguez, Ellis Q. Margolis, Christopher Marks, Laura A. E. Marshall, Kyle C. Rodman, Camille S. Stevens-Rumann, Andrea E. Thode, Jessica J. Walker. 2021. Tamm Review: Postfire landscape management in frequent-fire conifer forests of the southwestern United States
R. K. Hagmann, Paul F. Hessburg, S. J. Prichard, Nicholas Povak, P. M. Brown, P. Z. Fulé, Robert E. Keane, Eric E. Knapp, J. M. Lydersen, K. L. Metlen, Matthew Reilly, A. J. Sánchez Meador, S. L. Stephens, Jens Stevens, A. H. Taylor, L. L. Yocom, Michael A. Battaglia, D. J. Churchill, L. D. Daniels, D. A. Falk, P. Henson, J. D. Johnston, M. A. Krawchuk, C. R. Levine, G. W. Meigs, A. G. Merschel, Malcolm P. North, Hugh Safford, T. W. Swetnam, A. E. M. Waltz. 2021. Evidence for widespread changes in the structure, composition, and fire regimes of western North American forests
Megan P. Singleton, Andrea E. Thode, Andrew J. Sanchez Meador, Jose Iniguez, Jens Stevens. 2021. Management strategy influences landscape patterns of high-severity burn patches in the southwestern United States
Scott L. Stephens, Michael A. Battaglia, Derek J. Churchill, Brandon M. Collins, Michelle Coppoletta, Chad M. Hoffman, Jamie Lydersen, Malcolm P. North, Russell A. Parsons, Scott Ritter, Jens Stevens. 2021. Forest restoration and fuels reduction: Convergent or divergent?
Susan J. Prichard, Paul F. Hessburg, R. Keala Hagmann, Nicholas Povak, Solomon Z. Dobrowski, Matthew D. Hurteau, Van R. Kane, Robert E. Keane, Leda N. Kobziar, Crystal A. Kolden, Malcolm P. North, Sean A. Parks, Hugh D. Safford, Jens Stevens, Larissa L. Yocom, Derek J. Churchill, Robert W. Gray, David W. Huffman, Frank K. Lake, Pratima Khatri‐Chhetri. 2021. Adapting western North American forests to climate change and wildfires: 10 common questions
Jens Stevens, Gabrielle F. S. Boisramé, Ekaterina Rakhmatulina, Sally E. Thompson, Brandon M. Collins, Scott L. Stephens. 2020. Forest vegetation change and its impacts on soil water following 47 Years of managed wildfire
C. Alina Cansler, Sharon M. Hood, J. Morgan Varner, Phillip J. van Mantgem, Michelle C. Agne, Robert A. Andrus, Matthew P. Ayres, Bruce D. Ayres, Jonathan D. Bakker, Michael A. Battaglia, Barbara J. Bentz, Carolyn R. Breece, James Brown, Daniel R. Cluck, Tom Coleman, R. Gregory Corace, W. Wallace Covington, Douglas S. Cram, James Cronan, Joseph E. Crouse, Adrian J. Das, Ryan S. Davis, Darci M. Dickinson, Stephen A. Fitzgerald, Peter Z. Fulé, Lisa M. Ganio, Lindsay M. Grayson, Charles B. Halpern, Jim L. Hanula, Brian J. Harvey, J. Kevin Hiers, David W. Huffman, MaryBeth Keifer, Tara L. Keyser, Leda N. Kobziar, Thomas E. Kolb, Crystal A. Kolden, Karen E. Kopper, Jason R. Kreitler, Jesse K. Kreye, Andrew M. Latimer, Andrew Lerch, Maria J. Lombardero, Virginia McDaniel, Charles W. McHugh, Joel D. McMillin, Jason J. Moghaddas, Joseph J. O’Brien, Daniel D. B. Perrakis, David W. Peterson, Susan J. Prichard, Robert Progar, Kenneth F. Raffa, Elizabeth Reinhardt, Joseph Restaino, John P. Roccaforte, Brendan M. Rogers, Kevin C. Ryan, Hugh D. Safford, Alyson E. Santoro, Timothy M. Shearman, Alice M. Shumate, Carolyn H. Sieg, Sheri L. Smith, Rebecca J. Smith, Nathan L. Stephenson, Mary Stuever, Jens Stevens, Michael T. Stoddard, Walter G. Thies, Nicole M. Vaillant, Shelby A. Weiss, Douglas J. Westlind, Travis J. Woolley, Micah C. Wright. 2020. The Fire and Tree Mortality Database, for empirical modeling of individual tree mortality after fire
Jens Stevens, Jesse E. D. Miller, Paula J. Fornwalt. 2019. Fire severity and changing composition of forest understory plant communities
Malcolm P. North, Jens Stevens, David F. Greene, Michelle Coppoletta, Eric E. Knapp, Andrew M. Latimer, Christina M. Restaino, Ryan E. Tompkins, Kevin R. Welch, Rob A. York, Derek J.N. Young, Jodi N. Axelson, Tom N. Buckley, Becky Estes, Rachel N. Hager, Jonathan W. Long, Marc D. Meyer, Steven M. Ostoja, Hugh D. Safford, Kristen L. Shive, Carmen L. Tubbesing, Heather Vice, Dana Walsh, Chhaya M. Werner, Peter Wyrsch. 2019. Tamm Review: Reforestation for resilience in dry western U.S. forests
J. Mason Earles, Jens Stevens, Or Sperling, Jessica Orozco, Malcolm P. North, Maciej A. Zwieniecki. 2018. Extreme mid-winter drought weakens tree hydraulic-carbohydrate systems and slows growth
Hugh D. Safford, Jens Stevens. 2017. Natural range of variation for yellow pine and mixed-conifer forests in the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests, California, USA
Jens Stevens, Brandon M. Collins, Jay D. Miller, Malcolm P. North, Scott L. Stephens. 2017. Changing spatial patterns of stand-replacing fire in California conifer forests
Brandon M. Collins, Jens Stevens, Jay D. Miller, Scott L. Stephens, Peter M. Brown, Malcolm P. North. 2017. Alternative characterization of forest fire regimes: incorporating spatial patterns
Jens Stevens, Brandon M. Collins, Jonathan W. Long, Malcolm P. North, Susan J. Prichard, Leland Tarnay, Angela M. White. 2016. Evaluating potential trade-offs among fuel treatment strategies in mixed-conifer forests of the Sierra Nevada
Jens Stevens, Hugh D. Safford, Malcolm P. North, Jeremy S. Fried, Andrew Gray, Peter M. Brown, Christopher R. Dolanc, Solomon Z. Dobrowski, Donald A. Falk, Calvin A. Farris, Jerry F. Franklin, Peter Z. Fulé, R. Keala Hagmann, Eric E. Knapp, Jay D. Miller, Douglas F. Smith, Thomas W. Swetnam, Alan H. Taylor, Julia A. Jones. 2016. Average stand age from forest inventory plots does not describe historical fire regimes in ponderosa pine and mixed-conifer forests of western North America

Citations of Non-Forest Service Publications

Moore, Ian B.; Collins, Brandon M.; Foster, Daniel E.; Tompkins, Ryan E.; Stevens, Jens T.; Stephens, Scott L. 2021. Variability in wildland fuel patches following high-severity fire and post-fire treatments in the northern Sierra Nevada. International Journal of Wildland Fire. 30(12): 921-932. https://doi.org/10.1071/WF20131
Collins, Brandon M.; Bernal, Alexis; York, Robert A.; Stevens, Jens T.; Juska, Andrew; Stephens, Scott L. 2021. Mixed-conifer forest reference conditions for privately owned timberland in the southern Cascade Range. Ecological Applications. 31(7): e02400. https://doi.org/10.1002/eap.2400
Stevens, Jens T.; Kling, Matthew M.; Schwilk, Dylan W.; Varner, J. Morgan; Kane, Jeffrey M.; Gillespie, Thomas. 2020. Biogeography of fire regimes in western U.S. conifer forests: A trait-based approach. Global Ecology and Biogeography. 29(5): 944-955. https://doi.org/10.1111/geb.13079
Brown, Sabrina R.; Baysinger, Ashley; Brown, Peter M.; Cheek, Justin L.; Diez, Jeffrey M.; Gentry, Christopher M.; Grant, Thomas A.; St. Jacques, Jeannine-Marie; Jordan, David A.; Leef, Morgan L.; Rourke, Mary K.; Speer, James H.; Spradlin, Carrie E.; Stevens, Jens T.; Stone, Jeffery R.; Van Winkle, Brian; Zeibig-Kichas, Nickolas E. 2020. Fire History Across Forest Types in the Southern Beartooth Mountains, Wyoming. Tree-Ring Research. 76(1): 27-39. https://doi.org/10.3959/TRR2018-11
Stephens, Scott L; Stevens, Jens T; Collins, Brandon M; York, Robert A; Lydersen, Jamie M. 2018. Historical and modern landscape forest structure in fir (Abies)-dominated mixed conifer forests in the northern Sierra Nevada, USA. Fire Ecology. 14(2): 7. https://doi.org/10.1186/s42408-018-0008-6
Fry, Danny L.; Stevens, Jens T.; Potter, Andrew T.; Collins, Brandon M.; Stephens, Scott L. 2018. Surface fuel accumulation and decomposition in old-growth pine-mixed conifer forests, northwestern Mexico. Fire Ecology. 14(2): 6. https://doi.org/10.1186/s42408-018-0017-5
Hagmann, R. Keala; Stevens, Jens T.; Lydersen, Jamie M.; Collins, Brandon M.; Battles, John J.; Hessburg, Paul F.; Levine, Carrie R.; Merschel, Andrew G.; Stephens, Scott L.; Taylor, Alan H.; Franklin, Jerry F.; Johnson, Debora L.; Johnson, K. Norman. 2018. Improving the use of early timber inventories in reconstructing historical dry forests and fire in the western United States: Comment. Ecosphere. 9(7): e02232. https://doi.org/10.1002/ecs2.2232
Fox, K. M., E. Q. Margolis, M. K. Lopez, E. A. Kasten, and J. T. Stevens. 2023. Vegetation change over 140 years in a sagebrush landscape of the Rio Grande del Norte National Monument, New Mexico, USA. Journal of Vegetation Science 34:e13202. https://doi.org/10.1111/jvs.13202
Marshall, Laura AE, Paula J. Fornwalt, Camille S. Stevens-Rumann, Kyle C. Rodman, Teresa B. Chapman, Catherine A. Schloegel, and Jens T. Stevens. "What influences planted tree seedling survival in burned Colorado montane forests?." Forest Ecology and Management 572 (2024): 122321. https://doi.org/10.1016/j.foreco.2024.122321