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International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire
RESEARCH ARTICLE (Open Access)

Effects of policy change on wildland fire management strategies: evidence for a paradigm shift in the western US?

Jesse D. Young A G , Alexander M. Evans B , Jose M. Iniguez C , Andrea Thode A , Marc D. Meyer D , Shaula J. Hedwall E , Sarah McCaffrey F , Patrick Shin A C and Ching-Hsun Huang A
+ Author Affiliations
- Author Affiliations

A School of Forestry, Northern Arizona University, 200 East Pine Knoll Drive, Flagstaff, AZ, 86011, USA.

B Forest Stewards Guild, 2019 Galisteo St, Suite N7, Santa Fe, NM, 87505, USA.

C Rocky Mountain Research Station, US Forest Service, 2500 South Pine Knoll Drive, Flagstaff, AZ, 86001, USA.

D US Forest Service, Pacific Southwest Region, Regional Ecology Program, 351 Pacu Lane, Bishop, CA, 93514, USA.

E US Fish and Wildlife Service, Southwest Region, Arizona Ecological Services, 2500 South Pine Knoll Drive, Flagstaff, AZ, 86001, USA.

F Rocky Mountain Research Station, US Forest Service, 240 W Prospect Road, Fort Collins, CO, 80526, USA.

G Corresponding author. Email: jdy28@nau.edu

International Journal of Wildland Fire 29(10) 857-877 https://doi.org/10.1071/WF19189
Submitted: 13 November 2019  Accepted: 10 June 2020   Published: 5 August 2020

Journal Compilation © IAWF 2020 Open Access CC BY-NC-ND

Abstract

In 2009, new guidance for wildland fire management in the United States expanded the range of strategic options for managers working to reduce the threat of high-severity wildland fire, improve forest health and respond to a changing climate. Markedly, the new guidance provided greater flexibility to manage wildland fires to meet multiple resource objectives. We use Incident Status Summary reports to understand how wildland fire management strategies have differed across the western US in recent years and how management has changed since the 2009 Guidance for Implementation of Federal Wildland Fire Management Policy. When controlling for confounding variation, we found the 2009 Policy Guidance along with other concurrent advances in fire management motivated an estimated 27 to 73% increase in the number of fires managed with expanded strategic options, with only limited evidence of an increase in size or annual area burned. Fire weather captured a manager’s intent and allocation of fire management resources relative to burning conditions, where a manager’s desire and ability to suppress is either complemented by fire weather, at odds with fire weather, or put aside due to other priorities. We highlight opportunities to expand the use of strategic options in fire-adapted forests to improve fuel heterogeneity.

Additional keywords: decision making, dispersion, hazards, policy analysis, regression discontinuity, resource objective, wildland fire policy, zero inflation.


References

Acuna MA, Palma CD, Cui W, Martell DL, Weintraub A (2010) Integrated spatial fire and forest management planning. Canadian Journal of Forest Research 40, 2370–2383.
Integrated spatial fire and forest management planning.Crossref | GoogleScholarGoogle Scholar |

Ager AA, Barros AMG, Preisler HK, Day MA, Spies TA, Bailey JD, Bolte JP (2017a) Effects of accelerated wildfire on future fire regimes and implications for the United States federal fire policy. Ecology and Society 22, art12
Effects of accelerated wildfire on future fire regimes and implications for the United States federal fire policy.Crossref | GoogleScholarGoogle Scholar |

Ager AA, Evers CR, Day MA, Preisler HK, Barros AMG, Nielsen-Pincus M (2017b) Network analysis of wildfire transmission and implications for risk governance. PLoS One 12, e0172867
Network analysis of wildfire transmission and implications for risk governance.Crossref | GoogleScholarGoogle Scholar | 28257416PubMed |

Antonakis J, Bendahan S, Jacquart P, Lalive R (2014) Causality and endogeneity: problems and solutions. In ‘The Oxford handbook of leadership and organizations’. (Ed DV Day) pp. 93–117. (Oxford University Press: New York, NY, USA)

Balch JK, Bradley BA, Abatzoglou JT, Nagy RC, Fusco EJ, Mahood AL (2017) Human-started wildfires expand the fire niche across the United States. Proceedings of the National Academy of Sciences of the United States of America 114, 2946–2951.
Human-started wildfires expand the fire niche across the United States.Crossref | GoogleScholarGoogle Scholar | 28242690PubMed |

Barnett K, Miller C, Venn TJ (2016) Using risk analysis to reveal opportunities for the management of unplanned ignitions in wilderness. Journal of Forestry 114, 610–618.
Using risk analysis to reveal opportunities for the management of unplanned ignitions in wilderness.Crossref | GoogleScholarGoogle Scholar |

Boisramé G, Thompson S, Collins B, Stephens S (2017) Managed wildfire effects on forest resilience and water in the Sierra Nevada. Ecosystems 20, 717–732.
Managed wildfire effects on forest resilience and water in the Sierra Nevada.Crossref | GoogleScholarGoogle Scholar |

Brambor T, Clark WR, Golder M (2006) Understanding interaction models: improving empirical analyses. Political Analysis 14, 63–82.
Understanding interaction models: improving empirical analyses.Crossref | GoogleScholarGoogle Scholar |

Calkin DE, Thompson MP, Finney MA (2015) Negative consequences of positive feedbacks in US wildfire management. Forest Ecosystems 2, 9
Negative consequences of positive feedbacks in US wildfire management.Crossref | GoogleScholarGoogle Scholar |

Calonico S, Cattaneo MD, Titiunik R (2014) Robust data-driven inference in the regression-discontinuity design. The Stata Journal 14, 909–946.
Robust data-driven inference in the regression-discontinuity design.Crossref | GoogleScholarGoogle Scholar |

Calonico S, Cattaneo MD, Farrell MH, Titiunik R (2019) Regression discontinuity designs using covariates. Review of Economics and Statistics 101, 442–451.
Regression discontinuity designs using covariates.Crossref | GoogleScholarGoogle Scholar |

Cattaneo MD, Titiunik R, Vazquez-Bare G (2019) Power calculations for regression-discontinuity designs. The Stata Journal 19, 210–245.
Power calculations for regression-discontinuity designs.Crossref | GoogleScholarGoogle Scholar |

Cook TD (2008) ‘Waiting for life to arrive’: a history of the regression-discontinuity design in psychology, statistics and economics. Journal of Econometrics 142, 636–654.
‘Waiting for life to arrive’: a history of the regression-discontinuity design in psychology, statistics and economics.Crossref | GoogleScholarGoogle Scholar |

Dennison PE, Brewer SC, Arnold JD, Moritz MA (2014) Large wildfire trends in the western United States, 1984–2011. Geophysical Research Letters 41, 2928–2933.
Large wildfire trends in the western United States, 1984–2011.Crossref | GoogleScholarGoogle Scholar |

Dillon GK, Holden ZA, Morgan P, Crimmins MA, Heyerdahl EK, Luce CH (2011) Both topography and climate affected forest and woodland burn severity in two regions of the western US, 1984 to 2006. Ecosphere 2, 130
Both topography and climate affected forest and woodland burn severity in two regions of the western US, 1984 to 2006.Crossref | GoogleScholarGoogle Scholar |

Doane D, O’Laughlin J, Morgan P, Miller C (2006) Barriers to wildland fire use: a preliminary problem analysis. International Journal of Wilderness 12, 2005–2007.

Finney MA, McHugh CW, Grenfell IC, Riley KL, Short KC (2011) A simulation of probabilistic wildfire risk components for the continental United States. Stochastic Environmental Research and Risk Assessment 25, 973–1000.
A simulation of probabilistic wildfire risk components for the continental United States.Crossref | GoogleScholarGoogle Scholar |

Fire Executive Council (2009) ‘Guidance for implementation of Federal wildland fire management policy.’ (USDA and UShttps://doi.org/ Washington, DC, USA).

Fites-Kaufman J, Bradley AF, Merrill AG (2006) Fire and plant interactions. In: ‘Fire in California’s ecosystems’. (Eds N Sugihara, JW Van Wagtendonk, KE Shaffer, J Fites-Kaufman, AE Thode) pp. 94–117. (University of California Press: Berkeley and Los Angeles, California, USA)

Gebert KM, Black AE (2012) Effect of suppression strategies on federal wildland fire expenditures. Journal of Forestry 110, 65–73.
Effect of suppression strategies on federal wildland fire expenditures.Crossref | GoogleScholarGoogle Scholar |

Hand MS, Wibbenmeyer MJ, Calkin DE, Thompson MP (2015) Risk preferences, probability weighting, and strategy trade-offs in wildfire management. Risk Analysis 35, 1876–1891.
Risk preferences, probability weighting, and strategy trade-offs in wildfire management.Crossref | GoogleScholarGoogle Scholar | 26269258PubMed |

Haugo R, Zanger C, DeMeo T, Ringo C, Shlisky A, Blankenship K, Simpson M, Mellen-McLean K, Kertis J, Stern M (2015) A new approach to evaluate forest structure restoration needs across Oregon and Washington, USA. Forest Ecology and Management 335, 37–50.
A new approach to evaluate forest structure restoration needs across Oregon and Washington, USA.Crossref | GoogleScholarGoogle Scholar |

Houtman RM, Montgomery CA, Gagnon AR, Calkin DE, Dietterich TG, McGregor S, Crowley M (2013) Allowing a wildfire to burn: estimating the effect on future fire suppression costs. International Journal of Wildland Fire 22, 871–882.
Allowing a wildfire to burn: estimating the effect on future fire suppression costs.Crossref | GoogleScholarGoogle Scholar |

Hu M-C, Pavlicova M, Nunes EV (2011) Zero-inflated and hurdle models of count data with extra zeros: examples from an HIV-risk reduction intervention trial. The American Journal of Drug and Alcohol Abuse 37, 367–375.
Zero-inflated and hurdle models of count data with extra zeros: examples from an HIV-risk reduction intervention trial.Crossref | GoogleScholarGoogle Scholar | 21854279PubMed |

Hubbard JE (2012) 2012 Wildfire guidance, File code: 5100 (Attachment 1), pp. 1–3. United States Forest Service, Washington Office. Available at https://www.documentcloud.org/documents/407523-2012-wildfire-guidance-memo-may-25.html [verified 23 June 2020]

Huffman DW, Sánchez Meador AJ, Stoddard MT, Crouse JE, Roccaforte JP (2017) Efficacy of resource objective wildfires for restoration of ponderosa pine (Pinus ponderosa) forests in northern Arizona. Forest Ecology and Management 389, 395–403.
Efficacy of resource objective wildfires for restoration of ponderosa pine (Pinus ponderosa) forests in northern Arizona.Crossref | GoogleScholarGoogle Scholar |

Hulse D, Branscomb A, Enright C, Johnson B, Evers C, Bolte J, Ager A (2016) Anticipating surprise: using agent-based alternative futures simulation modeling to identify and map surprising fires in the Willamette Valley, Oregon, USA. Landscape and Urban Planning 156, 26–43.
Anticipating surprise: using agent-based alternative futures simulation modeling to identify and map surprising fires in the Willamette Valley, Oregon, USA.Crossref | GoogleScholarGoogle Scholar |

Hunter ME, Iniguez JM, Lentile LB (2011) Short- and long-term effects on fuels, forest structure, and wildfire potential from prescribed fire and resource benefit fire in south-western forests, USA. Fire Ecology 7, 108–121.
Short- and long-term effects on fuels, forest structure, and wildfire potential from prescribed fire and resource benefit fire in south-western forests, USA.Crossref | GoogleScholarGoogle Scholar |

Hunter ME, Iniguez JM, Farris CA (2014) Historical and current fire management practices in two wilderness areas in the south-western United States: the Saguaro Wilderness Area and the Gila–Aldo Leopold Wilderness Complex. USDA Forest Service, Rocky Mountain Research Station, General Technical Report RMRS-GTR-325 (Fort Collins, CO, USA)

Imbens GW, Lemieux T (2008) Regression discontinuity designs: a guide to practice. Journal of Econometrics 142, 615–635.
Regression discontinuity designs: a guide to practice.Crossref | GoogleScholarGoogle Scholar |

Jacob R, Zhu P, Somers M-A, Bloom H (2012) A practical guide to regression discontinuity. (MDRC) Available at https://www.mdrc.org/sites/default/files/regression_discontinuity_full.pdf [verified 23 June 2020]

Jolly WM, Cochrane MA, Freeborn PH, Holden ZA, Brown TJ, Williamson GJ, Bowman DM (2015) Climate-induced variations in global wildfire danger from 1979 to 2013. Nature Communications 6, 7537
Climate-induced variations in global wildfire danger from 1979 to 2013.Crossref | GoogleScholarGoogle Scholar | 26172867PubMed |

Jones B, Thacher JA, Chermak J, Berrens R (2016) Wildfire smoke health costs: a methods case study for a south-western US ‘mega-fire’. Journal of Environmental Economics and Policy 5, 181–199.
Wildfire smoke health costs: a methods case study for a south-western US ‘mega-fire’.Crossref | GoogleScholarGoogle Scholar |

Kahneman D, Klein G (2009) Conditions for intuitive expertise: a failure to disagree. The American Psychologist 64, 515–526.
Conditions for intuitive expertise: a failure to disagree.Crossref | GoogleScholarGoogle Scholar | 19739881PubMed |

Keane RE, Ryan KC, Veblen TT, Allen CD, Logan J, Hawkes B (2002) Cascading effects of fire exclusion in the Rocky Mountain ecosystems: a literature review. General Technical Report, RMRS-GTR-91. USDA Forest Service, Rocky Mountain Research Station, (Fort Collins, CO, USA).

Kelley BT (2017) Wildland fire managed for multiple objectives in south-western forests: implementation obstacles. MSc Thesis, Northern Arizona University.

Kim Y, Steiner S (2016) Quasi-experimental designs for causal inference. Educational Psychologist 51, 395–405.
Quasi-experimental designs for causal inference.Crossref | GoogleScholarGoogle Scholar | 30100637PubMed |

Knapp EE, Estes BL, Skinner CN (2009) Ecological effects of prescribed fire season: a literature review and synthesis for managers. USDA Forest Service, Pacific Southwest Research Station, General Technical Report PSW-GTR-224. (Albany, CA, USA).

Kneeshaw K, Vaske JJ, Bright AD, Absher JD, Leopold A (2004) Situational influences of acceptable wildland fire management actions. Society & Natural Resources 17, 477–489.
Situational influences of acceptable wildland fire management actions.Crossref | GoogleScholarGoogle Scholar |

Kokaly RF, Rockwell BW, Haire SL, King TVV (2007) Characterization of post-fire surface cover, soils, and burn severity at the Cerro Grande Fire, New Mexico, using hyperspectral and multispectral remote sensing. Remote Sensing of Environment 106, 305–325.
Characterization of post-fire surface cover, soils, and burn severity at the Cerro Grande Fire, New Mexico, using hyperspectral and multispectral remote sensing.Crossref | GoogleScholarGoogle Scholar |

Laughlin DC, Bakker JD, Fulé PZ (2005) Understory plant community structure in lower montane and subalpine forests, Grand Canyon National Park, USA. Journal of Biogeography 32, 2083–2102.
Understory plant community structure in lower montane and subalpine forests, Grand Canyon National Park, USA.Crossref | GoogleScholarGoogle Scholar |

Lavine A, Kuyumjian GA, Reneau SL, Katzman D, Malmon DV (2006) A five-year record of sedimentation in the Los Alamos Reservoir, New Mexico, following the Cerro Grande Fire. Joint 8th Federal interagency sedimentation conference and 3rd Federal interagency hydrologic modeling conference, 2–6 April 2006, Reno, Nevada USA. Available at http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.505.478&rep=rep1&type=pdf [verified 23 June 2020]

Lee DS, Lemieux T (2010) Regression discontinuity designs in economics. Journal of Economic Literature 48, 281–355.
Regression discontinuity designs in economics.Crossref | GoogleScholarGoogle Scholar |

Long JW, Tarnay LW, North MP (2017) Aligning smoke management with ecological and public health goals. Journal of Forestry 116, 76–86.
Aligning smoke management with ecological and public health goals.Crossref | GoogleScholarGoogle Scholar |

Lydersen JM, Collins BM, Brooks ML, Matchett JR, Shive KL, Povak NA, Kane VR, Smith DF (2017) Evidence of fuels management and fire weather influencing fire severity in an extreme fire event. Ecological Applications 27, 2013–2030.
Evidence of fuels management and fire weather influencing fire severity in an extreme fire event.Crossref | GoogleScholarGoogle Scholar | 28644577PubMed |

Lynch M, Evans A (2018) 2017 Wildfire season: an overview, Southwestern US Special Report. Ecological Restoration Institute and Southwest Fire Science Consortium, Northern Arizona University.

Lynch M, Evans A (2019) 2018 Wildfire season: an overview, Southwestern US. Special Report. Ecological Restoration Institute and Southwest Fire Science Consortium, Northern Arizona University.

Meyer MD (2015) Forest fire severity patterns of resource objective wildfires in the southern Sierra Nevada. Journal of Forestry 113, 49–56.
Forest fire severity patterns of resource objective wildfires in the southern Sierra Nevada.Crossref | GoogleScholarGoogle Scholar |

Meyer MD, Roberts SL, Wills R, Brooks M, Winford EM (2015) Principles of effective USA Federal fire management plans. Fire Ecology 11, 59–83.
Principles of effective USA Federal fire management plans.Crossref | GoogleScholarGoogle Scholar |

Meyer MD, Estes B, Wuenschel A, Bulaon B, Stucy A, Smith D, Caprio A (2019) Structure, diversity and health of Sierra Nevada red fir forests with reestablished fire regimes. International Journal of Wildland Fire 28, 386–396.
Structure, diversity and health of Sierra Nevada red fir forests with reestablished fire regimes.Crossref | GoogleScholarGoogle Scholar |

Miller C, Aplet GH (2016) Progress in wilderness fire science: embracing complexity. Journal of Forestry 114, 373–383.
Progress in wilderness fire science: embracing complexity.Crossref | GoogleScholarGoogle Scholar |

Miller JD, Safford HD (2012) Trends in wildfire severity: 1984 to 2010 in the Sierra Nevada, Modoc Plateau, and Southern Cascades, California, USA. Fire Ecology 8, 41–57.
Trends in wildfire severity: 1984 to 2010 in the Sierra Nevada, Modoc Plateau, and Southern Cascades, California, USA.Crossref | GoogleScholarGoogle Scholar |

North M, Collins BM, Stephens S (2012) Using fire to increase the scale, benefits, and future maintenance of fuels treatments. Journal of Forestry 110, 392–401.
Using fire to increase the scale, benefits, and future maintenance of fuels treatments.Crossref | GoogleScholarGoogle Scholar |

North M, Brough A, Long J, Collins B, Bowden P, Yasuda D, Miller J, Sugihara N (2015) Constraints on mechanized treatment significantly limit mechanical fuels reduction extent in the Sierra Nevada. Journal of Forestry 113, 40–48.
Constraints on mechanized treatment significantly limit mechanical fuels reduction extent in the Sierra Nevada.Crossref | GoogleScholarGoogle Scholar |

Notaro M, Liu Z, Gallimore RG, Williams JW, Gutzler DS, Collins S (2010) Complex seasonal cycle of ecohydrology in the south-west United States. Journal of Geophysical Research. Biogeosciences 115, 1–20.
Complex seasonal cycle of ecohydrology in the south-west United States.Crossref | GoogleScholarGoogle Scholar |

O’Connor CD, Falk DA, Lynch AM, Swetnam TW (2014) Fire severity, size, and climate associations diverge from historical precedent along an ecological gradient in the Pinaleño Mountains, Arizona, USA. Forest Ecology and Management 329, 264–278.
Fire severity, size, and climate associations diverge from historical precedent along an ecological gradient in the Pinaleño Mountains, Arizona, USA.Crossref | GoogleScholarGoogle Scholar |

O’Connor CD, Thompson MP, Rodríguez F (2016) Getting ahead of the wildfire problem: quantifying and mapping management challenges and opportunities. Geosciences 6, 35
Getting ahead of the wildfire problem: quantifying and mapping management challenges and opportunities.Crossref | GoogleScholarGoogle Scholar |

O’Connor CD, Calkin DE, Thompson MP (2017) An empirical machine learning method for predicting potential fire control locations for pre-fire planning and operational fire management. International Journal of Wildland Fire 26, 587–597.
An empirical machine learning method for predicting potential fire control locations for pre-fire planning and operational fire management.Crossref | GoogleScholarGoogle Scholar |

Predictive Services (2014) ICS-209 PROGRAM (NIMS) user’s guide: Appendix C: ICS‐209, block by block instructions. Available at https://gacc.nifc.gov/predictive_services/intelligence/niop/programs/sit_209/Help/Programs/B_209_Program/Section_5_Appendices/documents/Appendix_C.pdf [verified 23 June 2020]

Rudolph JE, Cole SR, Edwards JK (2018) Parametric assumptions equate to hidden observations: comparing the efficiency of non-parametric and parametric models for estimating time to AIDS or death in a cohort of HIV-positive women. BMC Medical Research Methodology 18, 142
Parametric assumptions equate to hidden observations: comparing the efficiency of non-parametric and parametric models for estimating time to AIDS or death in a cohort of HIV-positive women.Crossref | GoogleScholarGoogle Scholar | 30453971PubMed |

Schultz CA, Thompson MP, McCaffrey SM (2019) Forest Service fire management and the elusiveness of change. Fire Ecology 15, 13
Forest Service fire management and the elusiveness of change.Crossref | GoogleScholarGoogle Scholar |

Sheppard PR, Comrie AC, Packin GD, Angersbach K, Hughes MK (2002) The climate of the US Southwest. Climate Research 21, 219–238.
The climate of the US Southwest.Crossref | GoogleScholarGoogle Scholar |

Singleton M, Thode A, Sanchez Meador A, Iniguez P (2019) Increasing trends in high-severity fire in the south-western USA from 1984 to 2015. Forest Ecology and Management 433, 709–719.
Increasing trends in high-severity fire in the south-western USA from 1984 to 2015.Crossref | GoogleScholarGoogle Scholar |

SIT-209 (2018) Daily situation reports, SIT-209. National Fire and Aviation Management Web Applications. Available at https://fam.nwcg.gov/fam-web/ [verified 1 September 2018]

Stephens SL, Burrows N, Buyantuyev A, Gray RW, Keane RE, Kubian R, Liu S, Seijo F, Shu L, Tolhurst KG, van Wagtendonk JW (2014) Temperate and boreal forest mega-fires: characteristics and challenges. Frontiers in Ecology and the Environment 12, 115–122.
Temperate and boreal forest mega-fires: characteristics and challenges.Crossref | GoogleScholarGoogle Scholar |

Stephens SL, Collins BM, Biber E, Fulé PZ (2016) US Federal fire and forest policy: emphasizing resilience in dry forests. Ecosphere 7, 19
US Federal fire and forest policy: emphasizing resilience in dry forests.Crossref | GoogleScholarGoogle Scholar |

Stevens JT, Collins BM, Miller JD, North MP, Stephens SL (2017) Changing spatial patterns of stand-replacing fire in California conifer forests. Forest Ecology and Management 406, 28–36.
Changing spatial patterns of stand-replacing fire in California conifer forests.Crossref | GoogleScholarGoogle Scholar |

Swetnam TW (1990) Fire history and climate in the south-western United States. In ‘Proceedings of symposium on effects of fire management of Southwestern natural resources, Tucson, Arizona, 15–17 November 1988.’ (Ed. JS Krammes) USDA Forest Service, General Technical Report RM-191, pp. 6–17. (Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO.)

Taylor AH, Vandervlugt AM, Maxwell RS, Beaty RM, Airey C, Skinner CN (2014) Changes in forest structure, fuels and potential fire behaviour since 1873 in the Lake Tahoe Basin, USA. Applied Vegetation Science 17, 17–31.
Changes in forest structure, fuels and potential fire behaviour since 1873 in the Lake Tahoe Basin, USA.Crossref | GoogleScholarGoogle Scholar |

Thompson MP, Stonesifer CS, Seli RC, Hovorka M (2013) Developing standardized strategic responce categories for fire management units. Fire Management Today 73, 18–24.

Thompson MP, MacGregor DG, Dunn CJ, Calkin DE, Phipps J (2018) Rethinking the wildland fire management system. Journal of Forestry 116, 382–390.
Rethinking the wildland fire management system.Crossref | GoogleScholarGoogle Scholar |

USDA (2008) Wildland Fire Decision Support System (WFDSS): quantifying a qualitative relative risk assessment. Available at https://wfdss.usgs.gov/wfdss/pdfs/Quantifying_a_Qualitative_Relative_Risk_Assessment.pdf [Verified 23 June 2020]

USDA (2015) The rising cost of wildfire operations: effects on the Forest Service’s non-fire work. USDA Forest Service. Available at https://www.fs.usda.gov/sites/default/files/2015-Fire-Budget-Report.pdf [Verified 23 June 2020]

USDA (2018a) Accomplished activities. Retrieved September 1, 2018, from GIS Data, Activities Join to iweb_FACTS_Activities Table website. Available at https://www.fs.usda.gov/detailfull/r3/landmanagement/gis/?cid=stelprdb5201889&width=full [verified 23 June 2020]

USDA (2018b) FSPro (Fire Spread Probability). USDA Forest Service. Available at https://wfdss.usgs.gov/wfdss/pdfs/FSPro.pdf [verified 23 June 2020]

USDA (2018c) Land and resource management plan for the Coconino National Forest: Coconino, Gila, and Yavapai Counties, Arizona. Forest Service, Coconino National Forest, Southwestern Region MB-R3–04–31. Available at https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd606737.pdf [verified 23 June 2020]

USDOI/USDA (2011) ICS-209 When to report wildland fire incidents, pp. 1–7. USDI, USDA. Available at https://www.predictiveservices.nifc.gov/intelligence/ICS-209%20When%20to%20Report%20Wildland%20Fire%20Incidents.pdf [verified 23 June 2020]

USDOI/USDA (2019) Federal firefighting costs (suppression only). USDOI, USDA Forest Service. Available at https://www.nifc.gov/fireInfo/fireInfo_documents/SuppCosts.pdf [verified 23 June 2020]

Vaillant NM, Reinhardt ED (2017) An evaluation of the forest service hazardous fuels treatment program – are we treating enough to promote resiliency or reduce hazard? Journal of Forestry 115, 300–308.
An evaluation of the forest service hazardous fuels treatment program – are we treating enough to promote resiliency or reduce hazard?Crossref | GoogleScholarGoogle Scholar |

van Wagtendonk JW (2006) Fire as a physical process. In ‘Fire in California’s ecosystems’. (Eds N Sugihara, JW Van Wagtendonk, KE Shaffer, J Fites-Kaufman, AE Thode) pp. 38–56. (University of California Press: Berkeley and Los Angeles, CA, USA)

van Wagtendonk JW (2007) The history and evolution of wildland fire use. Fire Ecology 3, 3–17.
The history and evolution of wildland fire use.Crossref | GoogleScholarGoogle Scholar |

van Wagtendonk JW, Lutz JA (2007) Fire regime attributes of wildland fires in Yosemite National Park, USA. Fire Ecology 3, 34–52.
Fire regime attributes of wildland fires in Yosemite National Park, USA.Crossref | GoogleScholarGoogle Scholar |

Wei Y, Thompson MP, Haas JR, Dillon GK, O’Connor CD (2018) Spatial optimization of operationally relevant large fire confine and point protection strategies: model development and test cases. Canadian Journal of Forest Research 48, 480–493.
Spatial optimization of operationally relevant large fire confine and point protection strategies: model development and test cases.Crossref | GoogleScholarGoogle Scholar |

Westerling ALR (2016) Increasing western US forest wildfire activity: sensitivity to changes in the timing of spring. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 371, 20150178
Increasing western US forest wildfire activity: sensitivity to changes in the timing of spring.Crossref | GoogleScholarGoogle Scholar |

Westerling ALR, Hidalgo HG, Cayan DR, Swetnam TW (2006) Warming and earlier spring increase western US forest wildfire activity. Science 313, 940–943.
Warming and earlier spring increase western US forest wildfire activity.Crossref | GoogleScholarGoogle Scholar |

Wherry LR, Meyer BD (2016) Saving teens: using a policy discontinuity to estimate the effects of Medicaid eligibility. The Journal of Human Resources 51, 556–588.
Saving teens: using a policy discontinuity to estimate the effects of Medicaid eligibility.Crossref | GoogleScholarGoogle Scholar |

Wibbenmeyer MJ, Hand MS, Calkin DE, Venn TJ, Thompson MP (2013) Risk preferences in strategic wildfire decision making: a choice experiment with US wildfire managers. Risk Analysis 33, 1021–1037.
Risk preferences in strategic wildfire decision making: a choice experiment with US wildfire managers.Crossref | GoogleScholarGoogle Scholar | 23078036PubMed |

Williams AP, Seager R, Macalady AK, Berkelhammer M, Crimmins MA, Swetnam TW, Trugman AT, Buenning N, Noone D, Mcdowell NG, Hryniw N, Mora CI, Rahn T (2015) Correlations between components of the water balance and burned area reveal new insights for predicting forest fire area in the south-west United States. International Journal of Wildland Fire 24, 14–26.
Correlations between components of the water balance and burned area reveal new insights for predicting forest fire area in the south-west United States.Crossref | GoogleScholarGoogle Scholar |

Williamson MA (2007) Factors in United States Forest Service district rangers’ decision to manage a fire for resource benefit. International Journal of Wildland Fire 16, 755–762.
Factors in United States Forest Service district rangers’ decision to manage a fire for resource benefit.Crossref | GoogleScholarGoogle Scholar |

Wilson RS, Winter PL, Maguire LA, Ascher T (2011) Managing wildfire events: risk-based decision making among a group of federal fire managers. Risk Analysis 31, 805–818.
Managing wildfire events: risk-based decision making among a group of federal fire managers.Crossref | GoogleScholarGoogle Scholar | 21143258PubMed |

Young JD, Anderson NM, Naughton HT, Mullan K (2018) Economic and policy factors driving adoption of institutional woody biomass heating systems in the US. Energy Economics 69, 456–470.
Economic and policy factors driving adoption of institutional woody biomass heating systems in the US.Crossref | GoogleScholarGoogle Scholar |

Young JD, Thode AE, Huang C-H, Ager AA, Fulé PZ (2019) Strategic application of wildland fire suppression in the southwestern United States. Journal of Environmental Management 245, 504–518.
Strategic application of wildland fire suppression in the southwestern United States.Crossref | GoogleScholarGoogle Scholar | 31153605PubMed |