Research and Publications
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The pathways tool provides a series of empirically informed processes, choices, and engagement tactics designed to foster shared agreement about the best practices for wildfire adaptation across site-specific local conditions. We outline how the tool can advance adaptation processes for a variety of users, including (1) a community oriented planning process that will help reinforce or catalyze collective action about fire management, (2) a systematic approach for monitoring differential progress toward development of fire-adapted communities, and (3) a potential feedback mechanism that informs programmatic foci or allocation of future resources across potential actions designed for diverse social conditions.
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This concept paper presents a Stages of Collaborative Readiness framework. Collaborative, multi-party entities provide fundamental roles and contributions to prepare landscapes and communities to receive and recover from wildfire (identifying, connecting, and aligning stakeholders; co-developing strategies at scale; synchronizing operations; and facilitating science informed, continuous learning). The framework applies insights from the collaborative development literature to the context of forest and wildland fire risk management. It embeds the fundamental roles and contributions within a four-stage framework, identifying stage appropriate benchmarks and outcomes to increase the ability of a collaborative over time to serve those important functions.
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The wildland-urban interface (WUI) is the area where structures and other human development intermingle with wildland vegetation or where housing is in the vicinity of large areas of wildland vegetation. This story map provides data on two trends from 1990 to 2020: the expansion of WUI area and the growth in housing in WUI areas.
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In this article, we highlight strategies that Indigenous communities and scholars are employing to approach wildfire management. We start by introducing the reader to the colonial ecological violence that has resulted from the exclusion of fire and the ways that communities resist the settler colonial paradigm of fire suppression. We then analyze the role of militarism and incarceration within the “fire industrial complex.” Militarism and incarceration have been a part of settler colonial fire suppression in California since the beginning even as they emerge in novel forms in the twenty-first century, and they pose a challenge to regenerative and sovereign Indigenous fire futures. Next, we guide the reader through debates on Indigenous “traditional ecological knowledge” (TEK) and the ways that fire science variously erases, homogenizes, or romanticizes the epistemologically and politically complex practices of Indigenous burners. We advocate that scholars avoid participating in an extractive “TEK rush” and instead enter into direct relationships of accountability and collaboration with Indigenous fire practitioners. We conclude by discussing the ways Indigenous communities build anticolonial movements to assert sovereignty—fire and otherwise—based on reciprocal and relational systems for people and ecosystems. By reframing the current wildfire crisis through the lens of settler colonialism, we bypass unilateral, settler-driven solutions and emphasize that respect for Indigenous fire sovereignty—not only Indigenous fire knowledge—is essential for actualizing just fire futures in California and beyond.
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It is not well understood whether desert plantings can facilitate recruitment of other natives (or mainly just non-natives), or whether facilitation changes through time as a restoration site matures. To address these uncertainties, we partnered with the National Park Service to study plant community change below planted perennials and in interspaces (areas between perennials) during 12 years (2009-2020) in Joshua Tree National Park, California, in the southern Mojave Desert.
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This study uses tree cores gathered at three 4-hectare plots to make inferences about temporal aspects of tree recruitment in pine-dominated ecosystems of the California Sierra Nevada and the Sierra San Petro Martir in northwestern Mexico.
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We present an easily replicable approach to calculate the economic cost from carbon released instantaneously from wildfires at state and county level (US). Our approach is straightforward and relies exclusively on publicly available data that can be easily obtained for locations throughout the USA. We also describe how to apply social cost of carbon estimates to the carbon loss estimates to find the economic value of carbon released from wildfires. We demonstrate our approach using a case study of the 2017 Eagle Creek Fire in Oregon. Our estimated value of carbon lost for this medium-sized (19,400 ha) fire is $187.2 million (2020 dollars), which highlights the significant role that wildfires can have in terms of carbon emissions and their associated cost. The emissions from this fire were equivalent to as much as 2.3% of non-fire emissions for the state of Oregon in 2020.
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Using biophysical predictors and patterns of burn severity from 1180 recent fire events, we mapped the locations of potential fire refugia across upland conifer forests in the southwestern United States (US) (99,428 km2 of forest area), a region that is highly vulnerable to fire-driven transformation. We found that low pre-fire forest cover, flat slopes or topographic concavities, moderate weather conditions, spring-season burning, and areas affected by low-to moderate-severity fire within the previous 15 years were most-commonly associated with refugia. Based on current (i.e., 2021) conditions, we predicted that 67.6% and 18.1% of conifer forests in our study area would contain refugia under moderate and extreme fire weather, respectively. However, potential refugia were 36.4% (moderate weather) and 31.2% (extreme weather) more common across forests that experienced recent fires, supporting the increased use of prescribed and resource objective fires during moderate weather conditions to promote fire-resistant landscapes. When overlaid with models of tree recruitment, 23.2% (moderate weather) and 6.4% (extreme weather) of forests were classified as refugia with a high potential to support post-fire recruitment in the surrounding landscape. These locations may be disproportionately valuable for ecosystem sustainability, providing habitat for fire-sensitive species and maintaining forest persistence in an increasingly fire-prone world.
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Here, we quantify observed and projected trends in the frequency and seasonality of western United States prescribed fire days. We find that while ~2 C of global warming by 2060 will reduce such days overall (−17%), particularly during spring (−25%) and summer (−31%), winter (+4%) may increasingly emerge as a comparatively favorable window for prescribed fire especially in northern states.
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Costs associated with the Schultz Fire continued to accrue over 10 years, particularly those associated with post-wildfire flooding, totalling between US$109 and US$114 million. Suppression costs represented only 10% of total costs.