Article / Book
View article.
In the op-ed piece, Two Wildfires Everyone Should be Talking About, Wally Covingtion director of the Ecological Restoration Institute and professor of forest ecology at Northern Arizona University, suggests that by acting quickly and at larger scales, forest health can be restored and resiliency be built so that forests are better prepared for whatever changes may occur in the future.
View article.
This study analysed the role of defensible space by mapping and measuring a suite of pre-fire variables for 1000 destroyed and 1000 surviving structures for all fires where homes burned from 2001 to 2010 in San Diego County, CA, USA. Structures were more likely to survive a fire with defensible space immediately adjacent to them. The most effective treatment distance varied between 5 and 20 m (16–58 ft) from the structure, but distances larger than 30 m (100 ft) did not provide additional protection, even for structures located on steep slopes. The most effective actions were reducing woody cover up to 40% immediately adjacent to structures and ensuring that vegetation does not overhang or touch the structure.
View article.
This study summarizes data from extensive monitoring (2003-12) of sage-grouse populations within the Bi-State DPS. Data regarding lek attendance, movement, and survival of sage-grouse across multiple life stages were documented. A hierarchical integrated population modeling (IPM) approach was used to derive demographic parameters, which allows for the integration of multiple data sources to inform population growth rates and population vital rates.
View article.
Results of this case study suggest that if applications and conditions of this study can be mimicked, livestock producers and natural resource managers can likely use fall prescribed fire in the mesic sagebrush steppe to affect cattle resource-use patterns for 5 years postfire.
View article.
In this study, researchers compiled landscape-scale evidence of historical fire severity patterns in the ponderosa pine and mixed-conifer forests from published literature sources and stand ages available from the Forest Inventory and Analysis program in the USA. The consensus from this evidence is that the traditional reference conditions of low-severity fire regimes are inaccurate for most forests of western North America. Instead, most forests appear to have been characterized by mixed-severity fire that included ecologically significant amounts of weather-driven, high-severity fire.
View article.
This article argues that decisions regarding planned wildfire are marred by an anachronistic and inaccurate distinction between “natural” and “anthropogenic” fire. Rationalizing that unplanned wildfires are “natural,” the federal government excludes pollutants from such fires from air quality compliance calculations at the same time it encourages states to vigorously control pollutants from “anthropogenic,” prescribed fires. The result contributes to an undervaluation of necessary, planned wildfire. Several solutions are suggested to remove these distortions, including adopting a default rule whereby all wildfire smoke, of whatever origin, “counts” for purposes of air quality compliance.
View synthesis.
This synthesis describes what is known about the cumulative impacts of historic livestock grazing patterns and short-term effects of livestock grazing on fuels and fire in sagebrush ecosystems. Over years and decades grazing can alter fuel characteristics of ecosystems. On a yearly basis, grazing can reduce the amount and alter the continuity of fine fuels, potentially changing wildlife fire spread and intensity. However, how grazing-induced fuel alterations affect wildland fire depends on weather conditions and plant community characteristics. As weather conditions become extreme, the influence of grazing on fire behavior is limited, especially in communities dominated by woody plants.
View article.
This study found that growth rate of cheatgrass increased in both warming and snowmelt treatments. Largest increases occurred in warming plots during the wettest year, indicating that the magnitude of response to warming depends on moisture availability. Results indicate that increasing temperature will exacerbate cheatgrass impacts, especially where warming causes large reductions in the depth and duration of snow cover.
View brief.
This research brief from the California Fire Science Consortium discusses that detrimental consequences from future fires under changing climates could be reduced by recognizing diverse adaptions to fire in different forest types and by preparing forests and people for larger and more frequent fires.