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Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Southeast CASC > FY 2020 Projects ( Show all descendants )

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Frequent, low-intensity wildfires were once widespread across the Southeast US, which led to a reduction in unchecked vegetation growth that provided fuel for high-intensity fires. Both intentional and unintentional fire suppression and land-use changes have reduced many of these wildfires and the fire-adapted habitats in the region over time. This loss of frequent low-intensity wildfires on the landscape also increases the severity of wildfires due to fuel buildup and the encroachment of woody species. The remaining habitats and their native species (many of which are of conservation concern) are now almost completely dependent on prescribed burns for their persistence and survival. Successful application of fire...
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The fast pace of change in coastal zones, the trillions of dollars of investment in human communities in coastal areas, and the myriad of ecosystem services natural coastal environments provide makes managing climate-related risks along coasts a massive challenge for all of the U.S. coastal states and territories. Answering questions about both the costs and the benefits of alternative adaptation strategies in the near term is critical to taxpayers, decision-makers, and to the biodiversity of the planet. There is significant public and private interest in using ecosystem based adaptation approaches to conserve critical significant ecosystems in coastal watersheds, estuaries and intertidal zones and to protect man-made...
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Brook trout are the only native fish from the salmon family in the southeastern United States. Despite their recreational and cultural significance, human activities, such as habitat degradation and introduction of non-native species, have led to serious declines of brook trout populations in the region. Stream temperature and flow alterations from climate change are projected to impact this cold-water species even further. Recent studies show that there is much site-to-site variation in how climate affects stream temperature and flow. Therefore, vulnerability of local trout populations to climate change also varies. Understanding local variation in climate responses across the region is critical to maintaining...
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Mangroves are forested tidal wetlands that occur in tropical, sub-tropical, and warm temperate coastal regions around the world. Mangroves occupy a significant area of coastlines globally and provide important ecosystem services to humans and wildlife. These services include aesthetic value, storm protection, food provisioning, recreation, critical wildlife habitat, and biological carbon sequestration. However, mangrove wetlands are being lost globally due to both human development and sea level rise. Since mangroves provide numerous services and protections to society, the influences of environmental change on these ecosystems need to be understood so that effective management action can be taken. This project...
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Prescribed burning is a primary tool used to reduce wildfire risk and manage ecosystems to achieve a range of ecological, economic and societal goals.  The ability of fire managers to use prescribed fire as a management tool is complicated in regions such as the Southeast because of rapid population growth, extensive suburban development, and a changing climate. Such change restricts prescribed burning while also highlighting the necessity of an active prescribed fire management regime to reduce wildfire risk in these communities. To help managers make decisions in light of these factors, there is a need to document: 1) the current conditions under which practitioners are willing to burn and restrictions to active...
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Species are on the move as they respond to climate change. This includes many native species, but also species with high costs to society such as disease vectors, pests, and nonnative invasive species (an invasive species is a species that is not native to a specific location but is spreading with the tendency of causing damage to native plants and animals). Currently there are hundreds of invasive species with relatively restricted ranges in the southeastern U.S., but as the climate changes these species are expected to expand their ranges to new regions. It is important to understand if and how these species might move and what actions we can take to lessen their impact on species and habitats. To achieve this...
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The ability to effectively manage wildlife in North America is founded in an understanding of how human actions and the environment influence wildlife populations. Current management practices are informed by population monitoring data from the past to determine key ecological relationships and make predictions about future population status. In most cases, including the regulation of waterfowl hunting in North America, these forecasts assume that the relationships we observed in the past will remain the same in the future. However, climate change is influencing wildlife populations in many dynamic and uncertain ways, leading to a situation in which our observations of the past are poor predictors of the future....
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The climate of the Southeast is changing rapidly. As streams warm and streamflow dynamics change due to climate and land-cover changes, previously unsuitable habitats may become hospitable for invasive species. Warmwater and large-river adapted invasive species such as Asian carps may move upstream as habitats that were previously too cold or had too little flow become welcoming environments for them as climate changes. The spread of invasive species will likely impact native fishes and dependent local economies like fishing and tourism. Within the Southeast, the Tennessee and Cumberland River Basins, located across 7 different US states, are among the most important in terms of total, narrow-ranged, and at-risk...
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Abundant scientific research has characterized the relationships between climate and fire in ecosystems of the United States, and there is substantial evidence that the role of fire in ecosystems is likely to change with a changing climate. Changing fire patterns pose numerous natural resource management challenges and decision makers in natural-resource management increasingly require information about potential future changes in fire regimes to effectively prepare for and adapt to climate change impacts. An effective forward-looking fire science synthesis is urgently required to reflect the changing dimensions of human fire management, recognizing that fire causes, effects, impacts, and management are all interrelated...
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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 change. The project researchers recently convened a workshop with grassland managers and experts from across the Southeast, from Texas to West Virginia to Florida, to identify the most pressing science needs to effectively manage and restore grasslands over the coming decades. This project directly addresses those needs by...
    map background search result map search result map Understanding Impacts on Southeastern Grasslands from Climate Change, Urban Expansion, and Invasive Species Climate- and Land-Cover-Induced Shifts in the Distribution and Abundance of Invasive Fish and Their Impacts on Native Fish Communities in the Tennessee and Cumberland River Basins An Assessment of Invasive Species Range Shifts in the Southeastern U.S. and Actions to Manage Them Informing Management of Waterfowl Harvest in a Changing Climate Evaluating Ecosystem-Based Adaptation Options for Coastal Resilience Brook Trout Population Responses to Climate Variation Across the Southeast USA Science to Inform the Management of Mangrove Ecosystems Undergoing Sea Level Rise at Ding Darling National Wildlife Refuge, Sanibel Island, Florida Future of Fire: Towards a National Synthesis of Wildland Fire Under a Changing Climate Understanding Prescribed Fire Management in the Context of Climate Change and Landscape Transformation Development of an Early Warning System to Identify Changing Prescribed Burn Opportunities Across Southeast US Fire-Adapted Habitats Science to Inform the Management of Mangrove Ecosystems Undergoing Sea Level Rise at Ding Darling National Wildlife Refuge, Sanibel Island, Florida Brook Trout Population Responses to Climate Variation Across the Southeast USA Climate- and Land-Cover-Induced Shifts in the Distribution and Abundance of Invasive Fish and Their Impacts on Native Fish Communities in the Tennessee and Cumberland River Basins An Assessment of Invasive Species Range Shifts in the Southeastern U.S. and Actions to Manage Them Understanding Impacts on Southeastern Grasslands from Climate Change, Urban Expansion, and Invasive Species Understanding Prescribed Fire Management in the Context of Climate Change and Landscape Transformation Development of an Early Warning System to Identify Changing Prescribed Burn Opportunities Across Southeast US Fire-Adapted Habitats Informing Management of Waterfowl Harvest in a Changing Climate Future of Fire: Towards a National Synthesis of Wildland Fire Under a Changing Climate Evaluating Ecosystem-Based Adaptation Options for Coastal Resilience