Research and Publications
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Almost half of the full community costs of wildfire are paid for at the local level, including homeowners, businesses, and government agencies. Many of these costs are due to long-term damages to community and environmental services, such as landscape rehabilitation, lost business and tax revenues, and property and infrastructure repairs. By comparison, our analysis suggests suppression costs comprise around nine percent of total wildfire costs. The remaining costs include short-term expenses, or those costs occurring within the first six months—and long-term damages accruing during many months and years following a wildfire. Communities at risk to wildfires can reduce wildfire impacts and associated costs through land use planning.
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This report is an outstanding complete description of not only the Rothermel model, but also the modifications and addendums that have evolved for supporting the many systems that use the model. This work shows all the equations, discusses their relevance, and illustrates graphically their response to changes in their inherent variables. The variables required for driving the models referred to as inputs, which must be obtained to describe the environment in which the fire is burning, are often misunderstood.
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Irrigation trials were conducted over multiple years for two perennial Eriogonum species, E. umbellatum and E. heracleoides. Averaged over 11 years, seed yield of E. umbellatum was maximized by 209 mm/year of spring precipitation plus irrigation. Averaged over 6 years, seed yield of E. heracleoides was maximized by 126 mm/year of applied water. Both species required relatively small amounts of irrigation to help assure seed yield, and the irrigation needed for E. umbellatum could be adjusted by taking spring precipitation into account.
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This article extends an existing approach by articulating how characteristic patterns of local social context might be used to generate a range of fire adaptation “pathways” that can be applied variably across communities. Each ‘pathway’ would specify a distinct combination of actions, potential policies and incentives that best reflect the social dynamics, ecological stressors, and accepted institutional functions that people in diverse communities are likely to enact. We contend that advancement of the conceptual tools introduced in this article can aid communities in the development of flexible, scenario- based approaches for addressing wildfire adaptation in different situations. Processes outlined in the article also serve as a unifying way to document, test, and advance flexible approaches professionals can use to work with local populations in the co-development of wildfire management strategies.
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The goal of this paper is to go beyond drawing on distinct disciplinary perspectives to develop a holistic view of extreme wildfire event (EWE) as a social-ecological phenomenon. Based on literature review and using a transdisciplinary approach, this paper proposes a definition of EWE as a process and an outcome. Considering the lack of a consistent “scale of gravity” to leverage extreme wildfire events such as in natural hazards (e.g., tornados, hurricanes, and earthquakes) we present a proposal of wildfire classification with seven categories based on measurable fire spread and behavior parameters and suppression difficulty.
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Often missing or underdeveloped in wildland fire research is a clear sense of the link between contemporaneous political possibility and the desired ecological or management outcomes. This study examines the disconnect between desired outcomes and what we call the “politically possible”. Politically possible policy solutions are those that recognize how compromise, stakeholder engagement, and the distribution of costs and benefits combine to structure political acceptability. Better attending to the politically possible in wildland fire-related research can, in turn, inform our understanding of the cause, effect, and the potential solutions to fire management challenges. A lack of awareness and attention to the politically possible can create divisions or barriers to realistic action.
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This study found that climate change accompanied by experimentally increased biomass (i.e., the effects of invasions that increase community biomass or management that increases productivity through fertilization or respite from grazing) increased drought frequency and duration and advanced drought onset. Results suggest that the replacement of perennial temperate semiarid grasslands by shrubs, or increased biomass, can increase ecological drought in both current and future climates.
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This study found that area burned during the 30-year period, number of fires each year, and fire size followed a strong geographic pattern: Northern Intermountain > Southern Intermountain > Southern Rocky Mountain > Central Rocky Mountain. Area burned within piñon and juniper land cover types increased significantly during the 30-year period across the study area overall and for each geographic region, except the Southern Intermountain. Fire rotations were within reported historical ranges for sagebrush ecosystems and decreased over time. Also, fire number or fire size increased for the Southern Rocky Mountain and Southern Intermountain geographic regions. Across the study area, spatio-temporal patterns in fire regimes for piñon and juniper land cover types were similar to those for other land cover types. Careful monitoring of longer term trends in fire activity and the interacting effects of invasive annual grasses, bark beetles, and climate change is needed to access the dynamics of piñon and juniper land cover types and evaluate the efficacy of management treatments in piñon and juniper land cover types.
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This Gap Report Update is the latest addition to the list of valuable products of the Working Group designed to help identify the challenges (gaps) and offer ideas to address those challenges. The Gap Report Update has something for every level, public and private, to consider helping address the fire and invasive threat. It is our hope that the leaders of the various state and federal agencies will review the recommendations in the report and determine if there are things they can affect directly to address the gaps. It took a multi-agency, multi-discipline Working Group to identify the problems and provide possible solutions to these conservation and management challenges, it will certainly take a broad-based coalition of agencies, and public and private groups working together to ensure a healthy Sagebrush Biome is available for generations to come.
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Recently published research can help land managers to identify important hubs and pathways of genetic connectivity for greater sage-grouse. This knowledge can be used in evaluating proposed development or management actions in terms of how they could disrupt, protect or restore critical places of conservation for greater sage-grouse habitat. The genetic evaluation technique, combined with mapping technology, can be used to evaluate land management decisions in terms of their effect on more than 350 species that live in North American sagebrush habitat.