Research and Publications
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Reasons and consequences of pinyon-juniper expansion and treatment options are provided in a graphic summary.
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There is broad recognition that fire management in the United States must fundamentally change and depart from practices that have led to an over-emphasis on suppression and limited the presence of fire in forested ecosystems. In this paper, we look at competing problem definitions in US Forest Service policy for fire management, the presence of goal ambiguity, and how these factors can explain why changes in fire management have been elusive, despite policy change. We consider US Forest Service fire policies, performance incentives, and decision-making processes for two sides of the agency: the National Forest System, which is responsible for land management on the national forests, and Fire and Aviation Management, which oversees response to wildland fire.
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Challenges and solutions in applying TK and western knowledge (WK) to current approaches of wildland fire, fuels, and natural and cultural resource management.
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We utilize geospatial data, recorded interviews, and program documentation to synthesize how those strategies subsequently impacted the advance of the 2017 Thomas Fire on the community of Montecito under extreme fire danger conditions. Despite the extreme wind conditions and interviewee estimates of potentially hundreds of homes being consumed, only seven primary residences were destroyed by the Thomas Fire, and firefighters indicated that pre-fire mitigation activities played a clear, central role in the outcomes observed. This supports prior findings that community partnerships between agencies and citizens are critical for identifying and implementing place-based solutions to reducing wildfire vulnerability.
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Here, we provide a brief overview of examples where anthropogenically driven changes in fire frequency, fire pattern, fuels consumed and fire intensity constitute perturbations that greatly disrupt natural disturbance cycles and put ecosystems on a different trajectory resulting in type conversion. These changes are not due to fire per se but rather anthropogenic perturbations in the natural disturbance regime.
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Scientists at the Southern Research Stations of the US Forest Service combined the hydrometeorological and fire data for 168 fire-affected areas in the contiguous United States collected between 1984 and 2013. This enabled them to determine when wildland fires can affect the annual amount of flow in rivers, and to create a suite of climate and wildland fire impact models adapted to local conditions.
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Survey results from 21 fires during the 2013 wildfire season are presented to illustrate relative areas of strength and weakness related to wildfire response and how these measurements can feed into processes to facilitate social learning, adaptation and ultimately more resilient socio-ecological wildfire response institutions.
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Overall, adult males attended leks at higher rates (0.683 at peak) and earlier in the season (19 March) than subadults (0.421 at peak on April 19). Peak attendance probability was positively related to cumulative winter precipitation. Daily probabilities of lek switching differed between adults (0.019 at peak on March 3) and subadults (0.046 at peak on March 22), and lek switching was negatively related to distance to nearest lek. Our results indicate variable patterns in lek attendance through time, and that lek switching may occur at higher rates than previously thought. We demonstrate the use of generalizable daily attendance curves to date‐correct lek counts and derive estimates of male abundance, although such an approach will likely require the incorporation of information on age structure to produce robust results that are useful for population monitoring.
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Using the greater sage-grouse, a species highly dependent upon sagebrush landscapes, we (1) evaluated how females select nesting habitats based on sagebrush type, along with livestock grazing related linear and point features, and other biotic, abiotic characteristics, given hypothesized influences on hiding cover, microclimate and predator travel routes and perches, (2) compared habitat selection information with results for nest survival estimates to evaluate if selection appears to be adaptive or not, and (3) used our results to evaluate the most appropriate strategies for this species in a grazing-modified landscape.
Nest survival in preferred sagebrush type was one-fourth the rate in type avoided. Nest survival was four times higher when placed >100 m away from nearest fence. Timing of graze could best achieve herbaceous requirements for successful nesting. Fence modifications along with prioritization of sagebrush type are discussed.
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Today many forested landscapes in western states have a “fire debt.” Humans have prevented normal levels of fire from occurring, and the bill has come due. Increasingly severe weather conditions and longer fire seasons due to climate change are making fire management problems more pressing today than they were just a few decades ago. And the problem will only get worse.