2,236 research outputs found
Scanning the Future of Wildfire: Resilience AheadâŠWhether We Like It or Not?
The field of so-called âfutures researchâ provides researchers and stakeholders in a given subject area or system a way to map out and plan for alternate possible scenarios of the future. A recent research project supported by the Joint Fire Science Program brought together futures researchers and wildfire specialists to envision what the future holds for wildfire impacts and how the wildfire community may respond to the complex suite of emerging challenges. The consensus of the projectâs foresight panel suggests that an era of resilience is ahead: but that this resilience may come either with a very high cost (after some kind of collapse), in a more systematic way (that is, if the wildfire community plans for, and fosters, resilience), or something in between. In any projected future scenario, the panel suggests that the end of the fire suppression paradigm is imminent and that a new paradigmâ one that fosters natural resilience of the system, along with natural wildfireâis arising. A central question emerges from this work: How will the wildfire community respond to this tipping point
Breakthrough at the Missouri River Breaks: A Quick Tool for Comparing Burned and Unburned Sites
A quantitative understanding of how forests work, both before and after (prescribed and wild) fire, is essential to management. Yet acquiring the kind of broad yet detailed information needed for many management decisions can be costly, tedious, and time-consuming. After two sweeping wildfi res in the Missouri River Breaks area of eastern Montanaâthe Indian and Germaine wildfi resâsome researchers wanted to see whether it was possible to characterize both pre-fi re and post-fi re characteristics in a relatively inexpensive and effi cient way. Specifi cally, they wanted to know whether prescribed fire that is then followed by wildfire, is more likely to meet management objectives. Theresa Jain, a research forester at the Forest Service, Rocky Mountain Research Station, and her colleagues set out to do just that. After creating a careful plan, a small crew set off into the area, collected quick, but thorough data, and photographs. They were able to compare âpre burnâ (untouched by fi re) areas, to areas that had been exposed to wildfire, prescribed fire, or both. They created summaries and handbooks for their results. Although the data are not statistically signifi cant, there is a trend in the region of this study suggesting that wildfi re after a prescribed burned is more effective at meeting management objectives than either wildfi re or prescribe fi re alone. The handbooks offer not only specific information on the region, but also serve as a handbook for managers and planners who want to do the same thing in a different region
Restoring Mountain Meadows: Using Fire, Vegetation, and Fuel Management in Western Oregon
Meadows occupy a small percentage of the western Cascade landscape. Yet they sustain an abundance of species that do not exist in adjacent forests. These biologically rich habitats have been shrinking for more than a century as a result of conifer encroachment. Charlie Halpern, at the University of Washington, and his colleagues combined retrospective and experimental research to understand the consequences of encroachment for these ecosystems, and whether, and under what conditions, it was possible to restore meadows through tree removal and prescribed burning. Their initial results indicate that meadow species are replaced by forest herbs within decades of tree establishment and that early intervention may greatly aid restoration. However, they also found that tree removal, with or without burning, benefi ts meadow species at the expense of forest herbs, suggesting strong potential for restoration where meadow species still persist
Mapping and Estimating Forest Fuel with Radar Remote Sensing
With an increase in the risk of large fires across much of the Western United States, along with a growing variety of fuel types that result from changes in the landscape and management strategies, there has never been a more pressing need for accurate, cost-efficient, large scale forest fuel maps. Emerging remote sensing technologies may yield exactly the kind of large scale maps needed to more accurately predict forest fuel loads, fire risk, and fire behavior. With the Greater Yellowstone Ecosystem as their backdrop, Don Despain, Sasaan Saatchi, Kerry Halligan, Richard Aspinall, and Robert Crabtree worked together to acquire a detailed catalogue of remote sensing data for estimating forest fuel load, and creating subsequent maps. They retrieved passive (optical) and active (radar and LiDar) remote sensing data from a variety of sensors, interpreted the data, combined the data, and created mapsâall with the intent of fi nding the most accurate remote sensing data in terms of its correlation with their âon the groundâ field data. They found remarkably close accuracy with their airplane-retrieved radar data, showing that particular sensors could achieve about 70 percent accuracy compared to field data in predicting fuel load. This work helps mark a new era of potentially more accurate and cost-effective remote sensing technology specifi cally in regards to estimating forest fuel load, and related mapmaking
Burning and Beetles: Why Does Fire Spark Bark Beetle Attack?
Prescribed burning is now a routine technique used in forests. In some cases, these forests have not experienced fi re for decades. Sometimes, prescribed fire can lead to unexpected consequences. In Crater Lake National Park, prescribed burning to restore the mixed conifer forest there began in the late 1970s with unexpected consequences. Eventually researchers, including Jim Agee, determined that bark beetles were inflicting tree damage, and death. Ageeâs doctoral student, Dan Perrakis, focused his entire dissertation on trying to understand much more about the connections between fi re, trees, and bark beetles. With Agee, he did a host of interdisciplinary experiments. He found that at Crater Lake resin flow does not protect trees from beetles. It may be that beetles use resin volatiles released by fire-exposed trees, to home in on weakened trees. Says Perrakis, âThe major take home point with this is that the beetles and trees are engaged in an evolutionary arms race,â Perrakis says. âBut at Crater Lake, for now, the beetles are winning.â With this, there may be emerging guidance on how managers and planners can better protect forests from the ravages of bark beetles
Breakthrough at the Missouri River Breaks: A Quick Tool for Comparing Burned and Unburned Sites
A quantitative understanding of how forests work, both before and after (prescribed and wild) fire, is essential to management. Yet acquiring the kind of broad yet detailed information needed for many management decisions can be costly, tedious, and time-consuming. After two sweeping wildfi res in the Missouri River Breaks area of eastern Montanaâthe Indian and Germaine wildfi resâsome researchers wanted to see whether it was possible to characterize both pre-fi re and post-fi re characteristics in a relatively inexpensive and effi cient way. Specifi cally, they wanted to know whether prescribed fire that is then followed by wildfire, is more likely to meet management objectives. Theresa Jain, a research forester at the Forest Service, Rocky Mountain Research Station, and her colleagues set out to do just that. After creating a careful plan, a small crew set off into the area, collected quick, but thorough data, and photographs. They were able to compare âpre burnâ (untouched by fi re) areas, to areas that had been exposed to wildfire, prescribed fire, or both. They created summaries and handbooks for their results. Although the data are not statistically signifi cant, there is a trend in the region of this study suggesting that wildfi re after a prescribed burned is more effective at meeting management objectives than either wildfi re or prescribe fi re alone. The handbooks offer not only specific information on the region, but also serve as a handbook for managers and planners who want to do the same thing in a different region
Improving Access to Psychological Therapy: Initial Evaluation of the Two Demonstration Sites
The Government's Improving Access to Psychological Therapy (IAPT) programme aims to implement NICE Guidance for people with depression and anxiety disorders. In the first phase of the programme, two demonstration sites were established in Doncaster and Newham with funding to provide increased availability of cognitive-behaviour therapy-based (CBT) services to those in the community who need them. The services opened in late summer 2006. This paper documents the achievements of the sites up to September 2007 (roughly their first year of operation) and makes recommendations for the future roll out of IAPT services.Cognitive Behavioural Therapy, CBT, Psychological therapy, Evaluation, Cost benefit analysis, IAPT
Do Serial Sex Offenders Maintain a Consistent Modus Operandi?: Findings from Previously Unsubmitted Sexual Assault Kits
It is a common belief among law enforcement and prosecutors that serial sex offenders maintain a consistent modus operandi (MO), or offending pattern. The standard investigative practices in many law enforcement agencies are to either investigate a sexual assault allegation as an isolated event or use the offenderâs MO to link other sexual assaults possibly committed by that offender. However, recent research from the Cuyahoga County Sexual Assault Kit research team at Case Western Reserve University is calling this practice into question. In our recently published paper in the Journal of Criminal Justice âOffending patterns for serial sex offenders identified via the DNA testing of previously unsubmitted sexual assault kits,â we present findings showing that serial sex offenders frequently assault both strangers and nonstrangers, and often drastically vary their MO across assaults. In this paper, we discuss our findings and why these findings contradict standard practices for investigating sexual assault, provide recommendations for changing how law enforcement investigates sexual assault based on these findings, and include a discussion of the larger implications of this research for collecting and testing kits and following up on the results of the testing.https://commons.case.edu/beguncenter-reports/1008/thumbnail.jp
- âŠ