Thomas Spies
Volunteer
Treesearch Publications
- Andrew Merschel, Meg A. Krawchuk, James D. Johnston, Thomas Spies. 2024. Historical pyrodiversity in Douglas-fir forests of the southern Cascades of Oregon, USA
- Gavin M. Jones, Emily K. Vraga, Paul F. Hessburg, Matthew D. Hurteau, Craig D. Allen, Robert E. Keane, Thomas Spies, Malcolm P. North, Brandon M. Collins, Mark A. Finney, Jamie Lydersen, A. Leroy. Westerling. 2022. Counteracting wildfire misinformation
- Ana M. G. Barros, Michelle A. Day, Thomas Spies, Alan Ager. 2021. Effects of ownership patterns on cross‑boundary wildfires
- Matthew Reilly, Jessica Halofsky, Meg A. Krawchuk, Daniel C. Donato, Paul F. Hessburg, James D. Johnston, Andrew G. Merschel, Mark E. Swanson, Joshua S. Halofsky, Thomas Spies. 2021. Fire ecology and management in Pacific Northwest forests
- Paul F. Hessburg, Susan Charnley, Andrew Gray, Thomas Spies, David W. Peterson, Rebecca Flitcroft, Kendra Wendel, Jessica Halofsky, Eric M. White, John Marshall. 2021. Climate and wildfire adaptation of inland Northwest US forests
- Andrea Watts, Frederick Meinzer, Thomas Spies, Andrew Merschel, Steven Voelker. 2020. Crowded and thirsty: Fire exclusion leads to greater drought sensitivity in mixed-conifer forests
- Paul F. Hessburg, Susan Charnley, Kendra Wendel, Eric M. White, Peter Singleton, David W. Peterson, Jessica Halofsky, Andrew Gray, Thomas Spies, Rebecca Flitcroft, Rachel White. 2020. The 1994 Eastside Screens large-tree harvest limit: review of science relevant to forest planning 25 years later
- Benjamin T. Phalan, Joseph M. Northrup, Zhiqiang Yang, Robert Deal, Josée S. Rousseau, Thomas Spies, Matthew G. Betts. 2019. Impacts of the northwest forest plan on forest composition and bird populations
- Steven L. Voelker, Andrew G. Merschel, Frederick Meinzer, Danielle E. M. Ulrich, Thomas Spies, Christopher J. Still. 2019. Fire deficits have increased drought sensitivity in dry conifer forests: Fire frequency and tree‐ring carbon isotope evidence from Central Oregon
- Thomas Spies, Jonathan W. Long, Susan Charnley, Paul F. Hessburg, Bruce G. Marcot, Gordon Reeves, Damon B. Lesmeister, Matthew Reilly, Lee K. Cerveny, Peter Stine, Martin G. Raphael. 2019. Twenty‐five years of the Northwest Forest Plan: what have we learned?
- Paul F. Hessburg, Carol L. Miller, Sean A. Parks, Nicholas Povak, Malcolm P. North, Brandon M. Collins, Thomas Spies, Alina Cansler, Michael A. Battaglia, Carl N. Skinner. 2019. Climate, environment, and disturbance history govern resilience of Western North American forests
- Scott Stephens, Leda Kobziar, Brandon Collins, Raymond Davis, Peter Fulé, William Gaines, Joseph L. Ganey, Jim M. Guldin, Paul F. Hessburg, Kevin Hiers, Serra J. Hoagland, John J. Keane, Ronald Masters, Ann McKellar, Warren Montague, Malcolm P. North, Thomas Spies. 2019. Is fire “for the birds”? How two rare species influence fire management across the US
- Eric M. White, Kreg Lindberg, Emily Jane Davis, Thomas Spies. 2019. Use of science and modeling by practitioners in landscape-scale management decisions
- Thomas Spies, Paul F. Hessburg, Carl N. Skinner, Klaus J. Puettmann, Matthew Reilly, Raymond J. Davis, Jane A. Kertis, Jonathan W. Long, David C. . Shaw. 2018. Chapter 3: Old growth, disturbance, forest succession, and management in the area of the Northwest Forest Plan
- Ana M. G. Barros, Alan Ager, Michelle A. Day, Meg A. Krawchuk, Thomas Spies. 2018. Wildfires managed for restoration enhance ecological resilience
- Alan Ager, Ana M. G. Barros, Michelle A. Day, Haiganoush K. Preisler, Thomas Spies, John Bolte. 2018. Analyzing fine-scale spatiotemporal drivers of wildfire in a forest landscape model
- Thomas Spies, Peter Stine, Becky Gravenmier, Jonathan W. Long, Matthew Reilly, Rhonda Mazza. 2018. Synthesis of science to inform land management within the Northwest Forest Plan area: executive summary
- Emily K. Heyerdahl, Thomas Spies, Rachel A. Loehman, Andrew G. Merschel. 2018. Influence of landscape structure, topography, and forest type on spatial variation in historical fire regimes, Central Oregon, USA
- Thomas Spies, Jonathan W. Long, Peter Stine, Susan Charnley, Lee K. Cerveny, Bruce G. Marcot, Gordon Reeves, Paul F. Hessburg, Damon B. Lesmeister, Matthew Reilly, Martin G. Raphael, Raymond J. Davis. 2018. Chapter 12: Integrating ecological and social science to inform land management in the area of the northwest forest plan
- Matthew J. Reilly, Thomas Spies, Ramona Butz Littell, John B. Kim. 2018. Chapter 2: Climate, disturbance, and vulnerability to vegetation change in the Northwest Forest Plan Area
- Thomas Spies, Peter A. Stine, Becky Gravenmier, Jonathan W. Long, Matthew J. Reilly. 2018. Volume 2—Synthesis of science to inform land management within the Northwest Forest Plan area
- Thomas Spies, Peter A. Stine, Becky Gravenmier, Jonathan W. Long, Matthew J. Reilly. 2018. Volume 3—Synthesis of science to inform land management within the Northwest Forest Plan area
- Peter Stine, Thomas Spies. 2018. Chapter 1: Introduction
- Thomas Spies, Peter A. Stine, Becky Gravenmier, Jonathan W. Long, Matthew J. Reilly. 2018. Synthesis of science to inform land management within the Northwest Forest Plan area
- Thomas Spies, Peter A. Stine, Becky Gravenmier, Jonathan W. Long, Matthew J. Reilly. 2018. Volume 1—Synthesis of science to inform land management within the Northwest Forest Plan area
- Andrea Watts, Thomas Spies, Jeffrey D. Kline, Warren B. Cohen. 2017. Can we store carbon and have our timber and habitat too?
- Alan Ager, Ana M. G. Barros, Haiganoush K. Preisler, Michelle A. Day, Thomas Spies, John D. Bailey, John P. Bolte. 2017. Effects of accelerated wildfire on future fire regimes and implications for the United States federal fire policy
- Jeffrey D. Kline, Eric M. White, A Paige Fischer, Michelle M. Steen-Adams, Susan Charnley, Christine S. Olsen, Thomas Spies, John D. Bailey. 2017. Integrating social science into empirical models of coupled human and natural systems
- Ana M. G. Barros, Alan Ager, Michelle A. Day, Haiganoush K. Preisler, Thomas Spies, Eric M. White, Robert J. Pabst, Keith A. Olsen, Emily Platt, John D. Bailey, John P. Bolte. 2017. Spatiotemporal dynamics of simulated wildfire, forest management, and forest succession in central Oregon, USA
- Thomas Spies, Eric M. White, Alan Ager, Jeffrey D. Kline, John P. Bolte, Emily Platt, Keith A. Olsen, Robert J. Pabst, Ana M. G. Barros, John D. Bailey, Susan Charnley, Anita T. Morzillo, Jennifer Koch, Michelle M. Steen-Adams, Peter Singleton, James Sulzman, Cynthia Schwartz, Blair Csuti. 2017. Using an agent-based model to examine forest management outcomes in a fire-prone landscape in Oregon, USA
- Marie Oliver, Susan Charnley, Thomas Spies, Jeffrey D. Kline, Eric M. White. 2017. Forests, people, fire: Integrating the sciences to build capacity for an “All Lands” approach to forest restoration
- David M. Bell, Thomas Spies, Robert Pabst. 2017. Historical harvests reduce neighboring old-growth basal area across a forest landscape
- Bruce Shindler, Thomas Spies, John P. Bolte, Jeffrey D. Kline. 2017. Integrating ecological and social knowledge: learning from CHANS research
- Susan Charnley, Thomas Spies, Ana M. G. Barros, Eric M. White, Keith A. Olsen. 2017. Diversity in forest management to reduce wildfire losses: implications for resilience
- Thomas Spies, Matthew Reilly. 2016. Disturbance, tree mortality, and implications for contemporary regional forest change in the Pacific Northwest
- A. Paige Fischer, Thomas Spies, Toddi A Steelman, Cassandra Moseley, Bart R Johnson, John D Bailey, Alan Ager, Patrick Bourgeron, Susan Charnley, Brandon M. Collins, Jeffrey D Kline, Jessica E Leahy, Jeremy S Littell, James DA Millington, Max Nielsen-Pincus, Christine S Olsen, Travis B Paveglio, Christopher I Roos, Michelle M Steen-Adams, Forrest R Stevens, Jelena Vukomanovic, Eric M White, David M. J. S. Bowman. 2016. Pathology of wildfire risk: A characterization of social and ecological dimensions
- Jeffrey D. Kline, Mark E. Harmon, Thomas Spies, Anita T. Morzillo, Robert J. Pabst, Brenda C. McComb, Frank Schnekenburger, Keith A. Olsen, Blair Csuti, Jody C. Vogeler. 2016. Evaluating carbon storage, timber harvest, and habitat possibilities for a Western Cascades (USA) forest landscape
- Harold S.J. Zald, Thomas Spies, Rupert Seidl, Robert J. Pabst, Keith A. Olsen, Ashley Steel. 2016. Complex mountain terrain and disturbance history drive variation in forest aboveground live carbon density in the western Oregon Cascades, USA
- A Paige Fischer, Thomas Spies, Toddi A Steelman, Cassandra Moseley, Bart R Johnson, John D Bailey, Alan Ager, Patrick Bourgeron, Susan Charnley, Brandon M. Collins, Jeffrey D. Kline, Jessica E Leahy, Jeremy S Littell, James DA Millington, Max Nielsen-Pincus, Christine S Olsen, Travis B Paveglio, Christopher I Roos, Michelle M Steen-Adams, Forrest R Stevens, Jelena Vukomanovic, Eric M. White, David MJS Bowman. 2016. Wildfire risk as a socioecological pathology
- Susan C. Baker, Charles B. Halpern, Timothy J. Wardlaw, Christel C. Kern, Graham J. Edgar, Russell J. Thomson, Richard E. Bigley, Jerry F. Franklin, Kamal J. K. Gandhi, Lena Gustafsson, Samuel Johnson, Brian J. J. Palik, Thomas Spies, Ashley Steel, Jan Weslien, Joachim Strengbom. 2016. A cross-continental comparison of plant and beetle responses to retention of forest patches during timber harvest
- Paul F. Hessburg, Thomas Spies, David A. Perry, Carl N. Skinner, Alan H. Taylor, Peter M. Brown, Scott L. Stephens, Andrew J. Larson, Derek J. Churchill, Nicholas Povak, Peter Singleton, Brenda McComb, Bill Zielinski, Brandon M. Collins, R. Brion Salter, John J. Keane, Jerry F. Franklin, Greg Riegel. 2016. Tamm Review: Management of mixed-severity fire regime forests in Oregon, Washington, and Northern California
- Harold S.J. Zald, Thomas Spies, Mark E. Harmon, Mark Twery. 2016. Forest carbon calculators: a review for managers, policymakers, and educators
- Carol L. Miller, Thomas Spies, Malcolm P. North, Nicholas Povak, R. Travis Belote, Peter Singleton, William L. Gaines, Robert E. Keane, Gregory H. Aplet, Scott L. Stephens, Penelope Morgan, Pete Bisson, Ryan D. Haugo, Bruce E. Rieman, Brion Salter, Gordon Reeves, Paul F. Hessburg, Derek J. Churchill, Andrew J. Larson. 2015. Restoring fire-prone Inland Pacific landscapes: seven core principles
- Rupert Seidl, Thomas Spies, David L. Peterson, Scott L. Stephens, Jeffrey A. Hicke. 2015. Searching for resilience: addressing the impacts of changing disturbance regimes on forest ecosystem services
- Susan Charnley, Melissa Poe, Alan Ager, Thomas Spies, Emily Platt, Keith A. Olsen. 2015. A burning problem: social dynamics of disaster risk reduction through wildfire mitigation
- Raymond J. Davis, Janet Ohmann, Robert Kennedy, Warren B. Cohen, Matthew J. Gregory, Zhiqiang Yang, Heather M. Roberts, Andrew Gray, Thomas Spies. 2015. Northwest Forest Plan–the first 20 years (1994-2013): status and trends of late-successional and old-growth forests
- Tina Simonèiè, Thomas Spies, Robert Deal, Andrej Bonèina. 2015. A conceptual framework for characterizing forest areas with high societal values: experiences from the Pacific Northwest of USA and Central Europe
- Andrew G. Merschel, Thomas Spies, Emily K. Heyerdahl. 2014. Mixed-conifer forests of central Oregon: Effects of logging and fire exclusion vary with environment
- Alan J. Tepley, Frederick J. Swanson, Thomas Spies. 2014. Post-fire tree establishment and early cohort development in conifer forests of the western Cascades of Oregon, USA
- Marie Oliver, Thomas Spies, Andrew Merschel. 2014. Reality check: Shedding new light on the restoration needs of mixed-conifer forests
- Thomas Spies, Eric M. White, Jeffrey D. Kline, Paige Fischer, Alan Ager, John Bailey, John Bolte, Jennifer Koch, Emily Platt, Christine S. Olsen, Derric Jacobs, Bruce Shindler, Michelle M. Steen-Adams, Roger Hammer. 2014. Examining fire-prone forest landscapes as coupled human and natural systems
- Peter Stine, Paul F. Hessburg, Thomas Spies, Marc Kramer, Christopher J. Fettig, Andrew Hansen, John F. Lehmkuhl, Kevin O'Hara, Carlos M. Polivka, Peter Singleton, Susan Charnley, Andrew Merschel, Rachel White. 2014. The ecology and management of moist mixed-conifer forests in eastern Oregon and Washington: a synthesis of the relevant biophysical science and implications for future land management
- Paige Fischer, Adam Korejwa, Jennifer Koch, Thomas Spies, Christine Olsen, Eric M. White, Derric Jacobs. 2013. Using the forest, people, fire agent-based social network model to investigate interactions in social-ecological systems
- A.J. Tepley, F.J. Swanson, Thomas Spies. 2013. Fire-mediated pathways of stand development in Douglas-fir/western hemlock forests of the Pacific Northwest, USA
- Susan C. Baker, Thomas Spies, Timothy J. Wardlaw, Jayne Balmer, Jerry F. Franklin. 2013. The harvested side of edges: effect of retained forests on the re-establishement of biodiversity in adjacent harvested areas
- Thomas Spies, Robert J. Pabst. 2013. Managing for old-growth forests: a moving target
- Jeffrey D. Kline, Marisa J. Mazzota, Thomas Spies, Mark E. Harmon. 2013. Applying the ecosystem services concept to public land management
- Thomas Spies, David B. Lindenmayer, A. Malcolm Gill, Scott L. Stephens, James K. Agee. 2012. Challenges and a checklist for biodiversity conservation in fire-prone forests: perspecitves from the Pacific Northwest of USA and Southeastern Australia
- Harold S.J. Zald, Thomas Spies, Manuela Huso, Demetrios Gatziolis. 2012. Climatic, landform, microtopographic, and overstory canopy controls of tree invasion in a subalpine meadow landscape, Oregon Cascades, USA
- Rupert Seidl, Werner Rammer, Robert M. Scheller, Thomas Spies. 2012. An individual-based process model to simulate landscape-scale forest ecosystem dynamics
- Rupert Seidl, Thomas Spies, Werner Rammer, E. Ashley Steel, Robert J. Pabst, Keith Olsen. 2012. Multi-scale drivers of spatial variation in old-growth forest carbon density disentangled with Lidar and an individual-based landscape model
- Andrew Gray, Thomas Spies, Robert J. Pabst. 2012. Canopy gaps affect long-term patterns of tree growth and mortality in mature and old-growth forests in the Pacific Northwest
- Jonathan R. Thompson, Arnim Wiek, Frederick J. Swanson, Stephen R. Carpenter, Nancy Fresco, Teresa Hollingsworth, Thomas Spies, David R. Foster. 2012. Scenario studies as a synthetic and integrative research activity for Long-Term Ecological Research
- Charles T. Driscoll, Kathleen F. Lambert, F. Stuart Chapin, David J. Nowak, Thomas Spies, Fred Swanson, David B. Kittredge, Clarisse M. Hart. 2012. Science and society: the role of long-term studies in environmental stewardship
- Jonathan R. Thompson, Thomas Spies, Keith A. Olsen. 2011. Canopy damage to conifer plantations within a large mixed-severity wildfire varies with stand age
- Melinda Moeur, Janet Ohmann, Robert Kennedy, Warren B. Cohen, Matthew J. Gregory, Zhiqiang Yang, Heather M. Roberts, Thomas Spies, Maria Fiorella. 2011. Northwest Forest Plan–the first 15 years (1994–2008): status and trends of late-successional and old-growth forests
- David Perry, Paul F. Hessburg, Carl N. Skinner, Thomas Spies, Scott Stephens, Alan Henry Taylor, Jerry Franklin, Brenda McComb, Greg Riegel. 2011. The ecology of mixed severity fire regimes in Washington, Oregon, and Northern California
- J.E. Halofsky, D.C. Donato, D.E. Hibbs, J.L. Campbell, M. Donaghy Cannon, J.B. Fontaine, J.R. Thompson, R.G. Anthony, Bernard Bormann, L.J. Kayes, B.E. Law, David L. Peterson, Thomas Spies. 2011. Mixed-severity fire regimes: lessons and hypotheses from the Klamath-Siskiyou ecoregion
- Nikola Smith, Robert Deal, Jeffrey D. Kline, Dale Blahna, Trista Patterson, Thomas Spies, Karen Bennett. 2011. Ecosystem services as a framework for forest stewardship: Deschutes National Forest overview
- Thomas Spies, Jay D. Miller, Joseph B. Buchanan, John F. Lehmkuhl, Jerry F. Franklin, Sean P. Healey, Paul F. Hessburg, Hugh D. Safford, Warren B. Cohen, Rebecca Kennedy, Eric E. Knapp, James K. Agee, Melinda Moeur. 2010. Underestimating risks to the northern spotted owl in fire-prone forests: response to Hanson et al
- Robert P. Griffiths, Andrew Gray, Thomas Spies. 2010. Soil properties in old-growth Douglas-fir gaps in the western Cascade Mountains of Oregon
- Marie Oliver, Thomas Spies, Sally. Duncan. 2009. Old growth revisited: integrating social, economic, and ecological perspectives
- Robert J. Pabst, Matthew N. Goslin, Steven L. Garman, Thomas Spies. 2008. Calibrating and testing a gap model for simulating forest management in the Oregon Coast Range
- Sean P. Healey, Warren B. Cohen, Thomas Spies, Melinda Moeur, Dirk Pflugmacher, M. German Whitley, Michael Lefsky. 2008. The relative impact of harvest and fire upon landscape-level dynamics of older forests: lessons from the Northwest Forest Plan
- Jonathan R. Thompson, K. Norman Johnson, Marie Lennette, Thomas Spies, Pete Bettinger. 2006. Historical disturbance regimes as a reference for forest policy. in a multiowner province: a simulation experiment
- John Kirkland, Thomas Spies. 2002. Changing the scale of our thinking: landscape-level learning
- Andrew Gray, Thomas Spies, Mark J Easter. 2002. Microclimatic and soil moisture responses to gap formation in coastal Douglas-fir forests
- Andrew Gray, Thomas Spies. 1997. Microsite controls on tree seedling establishment in conifer forest canopy gaps
- Andrew Gray, Thomas Spies. 1995. Water content measurement in forest soils and decayed wood using time domain reflectometry
Last updated March 10, 2026