Research and Publications
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Deschutes County, population 175,000, has become a national leader in pursuing such a comprehensive approach. It too experiences regular wildfires. Nevertheless, no house has burned here since 2003, even as fires caused enormous property damage elsewhere in the West — from exurban metropolitan areas to similarly sized counties like Chelan and Oakanogan in Washington, where fires in 2015 burned over 100 structures.
Bob Roper, a retired fire chief of Ventura County, Calif., endorses the approach in general, saying, “Everything that they’re doing can be replicated somewhere else,” even though the strategy may still be unable to completely protect against the damage that increasingly ferocious winds pose in fire season.
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Bureau of Land Management describes the challenge that its staff and a partnership of private landowners, state agencies, conservation groups and more took on when deciding to cooperatively manage a landscape for sage-grouse. What developed is the Bates Hole Juniper Treatment Project.
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Spatial wildfire suppression costs regressions have been re-estimated at a more disaggregated level for the nine Geographic Area Coordination Center (GACC’s) regions using five years of data for fires involving National Forests. Results of these revised regression determined that only in the California GACCs did mechanical fuel treatment reduce wildfire suppression costs. However, the results of our second major hypothesis tests that fuel treatments, by making wildfires less damaging and easier to control, may reduce property damages (i.e., structures—barns, out buildings, etc. and residences lost) seems to be confirmed for acres treated with prescribed burning. In four out of the seven GACC regions prescribed burning lowered the number of structures damaged by wildfire. The results for mechanical fuel treatment were more mixed, with a significant negative effect in reducing property damages in two of the three regions with a significant coefficient on mechanical fuel treatment. These results are consistent with past research that suggests that for fuel treatments to reduce wildfire suppression costs it may be necessary to substantially increase the amount of area treated.
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This paper presents a case study to demonstrate the ability of the modeling framework to capture the onset and dynamics of a post-fire dust event and then use the modeling framework to estimate particulate matter (PM) emissions from burn scars left by wildfires in U.S. western sagebrush landscapes during 2012. Modeled emissions from 1.2 million ha of burned soil totaled 32.1 Tg of dust as PM10 and 12.8 Tg as PM2.5. Despite the relatively large uncertainties in these estimates and a number of underlying assumptions, these first estimates of annual post-fire dust emissions suggest that post-fire PM emissions could substantially increase current annual PM estimates in the U.S. National Emissions Inventory during high fire activity years. Given the potential for post-fire scars to be a large source of PM, further on-site PM flux measurements are needed to improve emission parameterizations and constrain these first estimates.
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The daily probability of a male sage-grouse moving among leks ranged 0.003 in 2011 to 0.010 in 2013, indicating high daily lek fidelity throughout the season, although there was a 5–42% chance annually a male would move at least once to another lek throughout the season. Interlek movement probabilities were strongly affected by day of year, peaking early in the lek season. Interlek movements were positively associated with elevation. Seasonal interlek movements occurred more frequently than previously reported, and can bias lek counts in early spring as males move from low to high elevation leks, which reinforces interlek movements as a critical component of lek ecology.
The Nature Conservancy used soils data and satellite imagery to map plant communities to a one-meter resolution. They determined that 268 acres in Great Basin National Park is a basin wildrye ecosystem. This ecosystem was identified as the most endangered plant community in the Park through a park-wide watershed analysis and conservation planning assessment process.
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Sage grouse are the ‘canary in the coal mine’ that herald how this vital ecosystem is faring. These birds rely entirely on sagebrush-dominated landscapes: it’s their primary food source, their breeding grounds, their chick-rearing sites, their safe zones from hungry predators.
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This was a study of ranchers in southeastern Arizona and southwestern New Mexico using Q Methodology to understand their views and motivations about ranching, conservation, and the government. Our results show three complex viewpoints, which we term radical center ranchers (20% of variance), innovative conservationists (19% of variance), and traditional ranchers (12% of variance). A commitment to conservation and corresponding lack of anti-conservation sentiment is held across these viewpoints. Mistrust of government coexists with conservation values for two groups. This information is useful for finding common ground between ranchers and government officials, conservationists, and extension agents on range management and conservation goals.