Article / Book
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This study analyzed data sets from previous and ongoing studies across the Great Basin characterizing cover response of perennial and annual forbs that are consumed by sage grouse to mechanical, prescribed fire, and low-disturbance fuel reduction treatments. Annual forbs favored by sage grouse benefited most from prescribed fire treatments with smaller increases following mechanical and fuel reduction treatments.
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This handbook walks managers and practitioners through a number of site-specific decisions managers face before selecting the appropriate type of restoration. This site-level decision tool for restoration of sagebrush steppe ecosystems is organized in nine steps.
- Step 1 describes the process of defining site-level restoration objectives.
- Step 2 describes the ecological site characteristics of the restoration site. This covers soil chemistry and texture, soil moisture and temperature regimes, and the vegetation communities the site is capable of supporting.
- Step 3 compares the current vegetation to the plant communities associated with the site State and Transition models.
- Step 4 takes the manager through the process of current land uses and past disturbances that may influence restoration success.
- Step 5 is a brief discussion of how weather before and after treatments may impact restoration success.
- Step 6 addresses restoration treatment types and their potential positive and negative impacts on the ecosystem and on habitats, especially for greater sage-grouse. We discuss when passive restoration options may be sufficient and when active restoration may be necessary to achieve restoration objectives.
- Step 7 addresses decisions regarding post-restoration livestock grazing management.
- Step 8 addresses monitoring of the restoration; we discuss important aspects associated with implementation monitoring as well as effectiveness monitoring.
- Step 9 takes the information learned from monitoring to determine how restoration actions in the future might be adapted to improve restoration success.
Seventy-five years of vegetation treatments on public rangelands in the Great Basin of North America
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This article summarizes information from land treatments occurring over millions of hectares of public rangelands in the Great Basin over the last 75 years represent one of the largest vegetation manipulation and restoration efforts in the world.
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This paper examines vulnerability in the context of affluence and privilege. It focuses on the 1991 Oakland Hills Firestorm in California, USA to examine long-term lived experiences of the disaster. First, vulnerability is variegated between households within communities, including those in more affluent areas. Second, household vulnerability is collectively altered, and oftentimes reduced, by the broader affluent community within which individual households reside. By paying closer attention to the affluence–vulnerability interface the paper reveals a recursive process, which is significant in the context of building more disaster resilient communities.
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This study found that insects generally reduced the severity of subsequent wildfires. Specific effects varied with insect type and timing, but both insects decreased the abundance of live vegetation susceptible to wildfire at multiple time lags. By dampening subsequent burn severity, native insects could buffer rather than exacerbate fire regime changes expected due to land use and climate change. In light of these findings, the researchers recommend a precautionary approach when designing and implementing forest management policies intended to reduce wildfire hazard and increase resilience to global change.
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This short synthesis highlights findings of the national Fire and Fire Surrogates Study, which conducted an integrated network of experiments at 13 sites across the United States, many of which took place on National Forest lands. Results suggest that more species increased in number than decreased. For example, researchers reported that populations of western bluebirds (Sialia mexicana) increased following prescribed fire; whereas mountain chickadees (Poecile gambeli) decreased in response to thinning treatments. The positive and negative responses of deer mice (Peromyscus maniculatus), gray-collared chipmunks (Tamias cinereicollis) and least chipmunks (T. minimus) varied among the sites; but the overall biomass of small mammals increased in response to the fire treatments. Researchers also found that small mammals’ responses were related to fire uniformity: the more heterogeneous the post-fire landscape, the greater the proportion of positive responses.
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This study found that prescribed fires conducted under favorable conditions (2011) induced potentially positive bighorn responses including high survival and increased use of treated areas. Fires during drought conditions were more widespread with little vegetative response (2012) and coincided with increased bighorn mortality in spring 2013.
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This KQED Science article indicates that since 1600, the way humans have used land in the Sierra has had more effect on fire behavior than climate change. Valerie Trouet, associate professor of dendrochronology at the University of Arizona and lead coauthor of a study about humans and fire, suggests that land managers and owners can affect fire behavior through activities that make forests more resilient.
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In this study, researchers concluded that variability in tree regeneration after disturbance can dampen and delay future disturbance by breaking spatiotemporal synchrony on the landscape. This highlights the importance of fostering landscape variability in the context of ecosystem management given changing disturbance regimes.
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This report makes the case that forest restoration should be at least equal to other land management priorities because large-scale restoration is necessary for the sake of forest ecosystem integrity now and into the future. Another proposal is to switch the “default” rule in federal planning documents that currently have to “justify” managed wildland fire; instead, U.S. federal agencies should be required to disclose the long-term ecological impacts of continued fire suppression.