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Fire

Fire seasons are becoming longer and more intense across the United States, particularly in dry western regions. Other stressors are further compounding the risk and severity of wildfires, including the spread of highly flammable invasive species and more frequent and severe droughts. The CASC network works with partners to develop knowledge and tools to help better understand region-specific drivers of wildfires across the country and facilitate ecosystem recovery post-fire.  

Filter Total Items: 33

A Climate-Informed Adaptation and Post-Fire Strategy for the Southwestern Region

The Southwest is projected to face significant climate challenges in coming decades; and many of these stresses have already begun. In recent years, multiple climate assessments have been developed for the Southwest that corroborate forecasts of remarkable change to vegetation pattern and the vulnerability of regional ecosystems and suggest that measurable change is already ongoing. Disturbance ev
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A Climate-Informed Adaptation and Post-Fire Strategy for the Southwestern Region

The Southwest is projected to face significant climate challenges in coming decades; and many of these stresses have already begun. In recent years, multiple climate assessments have been developed for the Southwest that corroborate forecasts of remarkable change to vegetation pattern and the vulnerability of regional ecosystems and suggest that measurable change is already ongoing. Disturbance ev
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A Climate-Informed Conservation Strategy for Southern California’s Montane Forests

California is a world biodiversity hotspot, and also home to hundreds of sensitive, threatened, and endangered species. One of the most vulnerable ecosystems in California is the “sky island” montane forests of southern California, forests of conifers and hardwoods located only in high-elevation mountain regions. Montane forests serve many important ecosystem functions, including protecting the up
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A Climate-Informed Conservation Strategy for Southern California’s Montane Forests

California is a world biodiversity hotspot, and also home to hundreds of sensitive, threatened, and endangered species. One of the most vulnerable ecosystems in California is the “sky island” montane forests of southern California, forests of conifers and hardwoods located only in high-elevation mountain regions. Montane forests serve many important ecosystem functions, including protecting the up
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Determining Successful Management and Restoration Strategies for Pinyon-Juniper Communities in the Face of Changing Climate and Wildfire

Pinyon-juniper woodlands are important ecosystems in the western U.S. that provide numerous critical environmental, economic, and cultural benefits. For example, pinyon pines are a significant cultural resource for multiple Native American Tribes and provide necessary habitat for plants and wildlife (including at risk species, such as the pinyon-jay). Despite their importance, stress put on pinyon
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Determining Successful Management and Restoration Strategies for Pinyon-Juniper Communities in the Face of Changing Climate and Wildfire

Pinyon-juniper woodlands are important ecosystems in the western U.S. that provide numerous critical environmental, economic, and cultural benefits. For example, pinyon pines are a significant cultural resource for multiple Native American Tribes and provide necessary habitat for plants and wildlife (including at risk species, such as the pinyon-jay). Despite their importance, stress put on pinyon
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Drought and Disturbances as Drivers of Long-Term Ecological Transformation and Risk

Forested areas in the Western U.S. that are impacted by disturbances such as fire and drought have increased in recent decades. This trend is likely to continue, with the increase in frequency and extent of wildfire activity being especially concerning. Resource managers need reliable scientific information to better understand wildfire occurrence, which can vary substantially across landscapes an
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Drought and Disturbances as Drivers of Long-Term Ecological Transformation and Risk

Forested areas in the Western U.S. that are impacted by disturbances such as fire and drought have increased in recent decades. This trend is likely to continue, with the increase in frequency and extent of wildfire activity being especially concerning. Resource managers need reliable scientific information to better understand wildfire occurrence, which can vary substantially across landscapes an
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Exploring Large Downed Wood as Post-Fire Refugia for Terrestrial Salamanders in Pacific Northwest Forests

Downed wood on the forest floor does more than provide habitat for amphibians, reptiles, birds and mammals. These decomposing habitat structures modify the temperature and moisture conditions in the forest itself. Inside and around downed wood, local climate conditions, or microclimates, provide wildlife with stable habitats that allow for persistence during and after wildfires. Cooler, wetter mic
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Exploring Large Downed Wood as Post-Fire Refugia for Terrestrial Salamanders in Pacific Northwest Forests

Downed wood on the forest floor does more than provide habitat for amphibians, reptiles, birds and mammals. These decomposing habitat structures modify the temperature and moisture conditions in the forest itself. Inside and around downed wood, local climate conditions, or microclimates, provide wildlife with stable habitats that allow for persistence during and after wildfires. Cooler, wetter mic
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Learning From the Past and Planning for the Future: Experience-Driven Insight Into Managing for Ecosystem Transformations Induced by Drought and Wildfire

Drought and wildfire pose enormous threats to the integrity of natural resources that land managers are charged with protecting. Recent observations and modeling forecasts indicate that these stressors will likely produce catastrophic ecosystem transformations, or abrupt changes in the condition of plants, wildlife, and their habitats, in regions across the country in coming decades. In this p
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Learning From the Past and Planning for the Future: Experience-Driven Insight Into Managing for Ecosystem Transformations Induced by Drought and Wildfire

Drought and wildfire pose enormous threats to the integrity of natural resources that land managers are charged with protecting. Recent observations and modeling forecasts indicate that these stressors will likely produce catastrophic ecosystem transformations, or abrupt changes in the condition of plants, wildlife, and their habitats, in regions across the country in coming decades. In this p
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Science to Help Move From Mortality to Recovery in Western Forests and Woodlands

Healthy forests and woodlands in the western United States provide many important benefits, including providing habitat for wildlife, forage for livestock, and clean water for fish and human use. Yet climate change and other stressors, from wildfires and insect attacks to severe droughts, are causing unprecedented tree die offs across the region, threatening many of these ecosystem services. Follo
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Science to Help Move From Mortality to Recovery in Western Forests and Woodlands

Healthy forests and woodlands in the western United States provide many important benefits, including providing habitat for wildlife, forage for livestock, and clean water for fish and human use. Yet climate change and other stressors, from wildfires and insect attacks to severe droughts, are causing unprecedented tree die offs across the region, threatening many of these ecosystem services. Follo
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Science to Inform Post-fire Conifer Regeneration and Reforestation Strategies Under Changing Climate Conditions

Climate change is causing an increase in the amount of forested area burned by wildfires in the western U.S. The warm, dry post-fire conditions of the region may limit tree regeneration in some areas, potentially causing a shift to non-forest vegetation. Managers are increasingly challenged by the combined impacts of greater wildfire activity, the significant uncertainty about whether forests will
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Science to Inform Post-fire Conifer Regeneration and Reforestation Strategies Under Changing Climate Conditions

Climate change is causing an increase in the amount of forested area burned by wildfires in the western U.S. The warm, dry post-fire conditions of the region may limit tree regeneration in some areas, potentially causing a shift to non-forest vegetation. Managers are increasingly challenged by the combined impacts of greater wildfire activity, the significant uncertainty about whether forests will
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Understanding Impacts on Southeastern Grasslands from Climate Change, Urban Expansion, and Invasive Species

Much of the biodiversity of the southeastern U.S. is found in grasslands, including meadows, prairies, glades, and savannas. These grasslands provide vital habitat to a variety of plants and animals, but many grassland types have undergone over 90% loss due to fire suppression and urban sprawl. The remaining grassland patches—remnants—now face emerging threats from invasive species and climate cha
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Understanding Impacts on Southeastern Grasslands from Climate Change, Urban Expansion, and Invasive Species

Much of the biodiversity of the southeastern U.S. is found in grasslands, including meadows, prairies, glades, and savannas. These grasslands provide vital habitat to a variety of plants and animals, but many grassland types have undergone over 90% loss due to fire suppression and urban sprawl. The remaining grassland patches—remnants—now face emerging threats from invasive species and climate cha
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Anticipating Forest Vulnerability to Fire-Catalyzed Ecosystem Change in the Northern Rocky Mountains

Forests in the western U.S. are increasingly impacted by climate change. Warmer and drier conditions both increase fire activity in western forests and make it more difficult for forests to recover after wildfires. If forests fail to recover, they may shift to non-forest ecosystems like grasslands or shrublands. It is important to understand where fires may result in the loss of forests because fo
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Anticipating Forest Vulnerability to Fire-Catalyzed Ecosystem Change in the Northern Rocky Mountains

Forests in the western U.S. are increasingly impacted by climate change. Warmer and drier conditions both increase fire activity in western forests and make it more difficult for forests to recover after wildfires. If forests fail to recover, they may shift to non-forest ecosystems like grasslands or shrublands. It is important to understand where fires may result in the loss of forests because fo
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Forest Fires in Western Cascadia: Evaluating Drivers and Impacts to Inform Climate-Adaptive Management Responses

Forests west of the Cascade Crest in Oregon and Washington have been shaped by infrequent but severe wildfires that historically occurred at intervals spanning several centuries. Since the mid-1900s, relatively few fires have occurred in the region, resulting in a general lack of understanding of the drivers of these fires, the impacts on ecosystems, and possible management responses. Most of the
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Forest Fires in Western Cascadia: Evaluating Drivers and Impacts to Inform Climate-Adaptive Management Responses

Forests west of the Cascade Crest in Oregon and Washington have been shaped by infrequent but severe wildfires that historically occurred at intervals spanning several centuries. Since the mid-1900s, relatively few fires have occurred in the region, resulting in a general lack of understanding of the drivers of these fires, the impacts on ecosystems, and possible management responses. Most of the
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Fire Refugia in Old-Growth Forests: Predicting Habitat Persistence to Support Land Management in an Era of Rapid Global Change

Mature, old-growth forests in the Pacific Northwest provide critical habitat for threatened and endangered species, including the northern spotted owl and marbled murrelet. Dominated by large Douglas-firs and western hemlocks, these established forests range in age from 200 to 1,000 years old. Yet wildfire activity is increasing across western North America, heightening concerns about severe fires
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Fire Refugia in Old-Growth Forests: Predicting Habitat Persistence to Support Land Management in an Era of Rapid Global Change

Mature, old-growth forests in the Pacific Northwest provide critical habitat for threatened and endangered species, including the northern spotted owl and marbled murrelet. Dominated by large Douglas-firs and western hemlocks, these established forests range in age from 200 to 1,000 years old. Yet wildfire activity is increasing across western North America, heightening concerns about severe fires
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