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Climate change threatens many wildlife species across the Pacific Northwest. As the climate continues to change, wildlife managers are faced with the ever-increasing challenge of allocating scarce resources to conserve at-risk species, and require more information to prioritize sites for conservation. However, climate change will affect species differently in different places. In fact, some places may serve as refuges for wildlife—places where animals can remain or to which they can easily move to escape the worst impacts of climate change. Currently, different datasets exist for identifying these resilient landscapes, known as climate refugia, but they are often not readily useable by wildlife managers. To address...
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Surface-water availability has been identified as one of the biggest issues facing society in the 21st century. Where and when water is on the landscape can have profound impacts on the economy, wildlife behavior, recreational use, industrial practices, energy development, and many other aspects of life, society, and the environment. Projections indicate that surface-water availability will be generally reduced in the future because of multiple factors including climate change, increased drought frequency and severity, and altered water and land use. Thus, it is important resource managers understand which areas are most vulnerable to reduced water availability impacts, and to what extent current conditions may...
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Snow conditions are changing dramatically in the mountains of the interior Pacific Northwest, including eastern Washington, northern Idaho, and western Montana. These changes can both benefit and hinder a variety of wildlife species. The timing and extent of seasonal snowpacks, in addition to snow depth, density, and hardness, can impact the ability of wildlife to access forage, their ability to move across the landscape, and their vulnerability to predators, to name a few. In order to respond effectively to changes in snow conditions, wildlife managers need tools to identify areas and promote conditions that maintain late spring and early summer snowpack for some sensitive species. Managers also require an index...
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Natural resource managers are confronted with the pressing challenge to develop conservation plans that address complex ecological and societal needs against the backdrop of a rapidly changing climate. Climate change vulnerability assessments (CCVAs) provide valuable information that helps guide management and conservation actions in this regard. An essential component to CCVAs is understanding adaptive capacity, or the ability of a species to cope with or adjust to climate change. However, adaptive capacity is the least understood and evaluated component of CCVAs. This is largely due to a fundamental need for guidance on how to assess adaptive capacity and incorporate this information into conservation planning...
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Big sagebrush plant communities are important and widespread in western North America and are crucial for meeting long-term conservation goals for greater sage-grouse and other wildlife of conservation concern. Yet wildfire is increasing in the West, turning biodiverse, shrub-based ecosystems dominated by sagebrush into grasslands containing invasive species such as cheatgrass and less overall plant and animal diversity. These transformations negatively impact people and ecosystems by reducing habitat quality for wildlife and the aesthetic value of the landscape. Understanding how sagebrush communities are already responding and will continue to respond to changes in wildfire, invasive species, and climate is...
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The headwaters of the Columbia River Basin in the Northern Rocky Mountains region is widely recognized as a stronghold for native fish, containing some of the last remaining connected cold-water habitats for species such as the threatened bull trout and native westslope cutthroat trout. However, as temperatures rise, non-native invasive fish species could be poised to prosper in the region as conditions start to favor warm-water species over those that require cooler waters to thrive. The spread of invasive fish species has the potential to devastate native fish populations, stream habitats, and the local cultures and economies that depend on healthy aquatic ecosystems – including the region’s multi-billion dollar...
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A persistent management question is whether current climate adaptation planning will remain robust when facing a growing number of invasive species. The concern is that current management strategies that focus exclusively on single invasive species and overlook climate-driven biological interactions, may lead to poor decisions. By delivering actionable science, this project directly informs specific planning, management and decision needs of tribal and governmental partners working in the Columbia River Basin. First, we assess the information needs for, and barriers to, effective aquatic invasive species management in the face of climate change in the Columbia River Basin. This helps synthesize knowledge and build...
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Tribal nations in the Pacific Northwest have distinctive, long-standing relationships with their aboriginal lands and associated resources. These relationships are being disrupted by changing climate conditions. Most scientific information about changes in forests and other ecosystems have not been directed toward addressing the concerns of tribal communities. For example, they lack culturally-specific information pertaining to tribal knowledge systems, cultural practices, livelihoods, food and water security, and economies. Furthermore, ensuring that research is conducted in ways that are relevant to tribes is difficult when those who produce these studies lack experience in working with tribes, and are unfamiliar...
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Sagebrush steppe is one of the most widely distributed ecosystems in North America. Found in eleven western states, this important yet fragile ecosystem is dominated by sagebrush, but also contains a diversity of native shrubs, grasses, and flowering plants. It provides critical habitat for wildlife like pronghorn and threatened species such as the greater sage-grouse, and is grazed by livestock on public and private lands. However, this landscape is increasingly threatened by shifts in wildfire patterns, the spread of invasive grasses, and changing climate conditions. While sagebrush is slow to recover after fires, non-native grasses such as cheatgrass thrive in post-fire conditions and the spread of these species...
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Throughout the Pacific Northwest, invasive flora threaten river ecosystems and the communities that depend on them. Invasive plants harm water quality, occupy habitat for native species, reduce recreation opportunities, and damage infrastructure such as pumps and dams. Resource managers from federal, state, and local agencies, as well as local non-profits, spend hundreds of thousands of dollars on monitoring and exterminating invasive plants. Management costs and damages are likely to rise as climate change warms temperatures and reduces rainfall across the basin, expanding potential habitat for invasive plants and affecting the effectiveness of management. For some time, scientists have recognized the potential...
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As wildfire activity surges in the western U.S., managers are increasingly challenged by decisions surrounding managing post-fire environments.Changing fire regimes and warmer,drier post-fire conditions are increasing the likelihood of post-fire vegetation transitions, for example,from forest to grassland. Given the economic and ecological importance of these ecosystems, transformation is a concern for managers, policy-makers, and the public. As rapid environmental changes occur, management aimed at maintaining historical conditions will become increasingly untenable, requiring managers to make decisions that steward vegetation toward desired or novel conditions. The Resist-Accept-Direct (RAD) framework provides...
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Sagebrush steppe ecosystems provide livelihoods for humans and essential habitats for wildlife, and thus management actions in these systems to promote wildlife persistence must strike a balance between human needs with those of wildlife. Across the western U.S., these landscapes have been heavily altered or lost through human activities, and climate change is expected to cause further changes in the quality and connections between habitat patches that could exacerbate declining populations of vulnerable wildlife species. To better manage these ecosystems under shifting conditions, researchers are examining how species use the mosaic of agricultural and intact sagebrush landscapes and how agricultural practices...
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The Squaxin Island Tribe (SIT) is descended from maritime people who have lived and prospered along the shores of the southernmost inlets of the Salish Sea for millennia. Climate change is projected to result in lower low water flows, higher peak water temperatures, and bigger and more frequent floods, due to both changes in peak flows and sea level rise. These changes could have significant impacts for salmon and other fish populations, while also putting key Tribal properties and enterprises at risk. Given the potential for climate change to exacerbate existing threats on salmon populations, it is necessary to quantify climate change impacts to inform effective restoration and conservation plans. The project...
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The Pacific Northwest is a hotspot for temperate amphibian biodiversity and is home to many species of salamanders and frogs found nowhere else on earth. Changing climatic conditions threaten habitat for many of these species and may also enhance the risk of disease and invasive species encroachment. State and federal wildlife agencies are in the process of evaluating these threats, but information is lacking. Wildlife managers need to know: the availability of suitable habitat under different climate scenarios; the vulnerability of at-risk amphibians to different diseases, and how climate change will affect that vulnerability; and the potential future spread of harmful invasive species like American bullfrogs,...
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Climate change impacts on forests, including drought and wildfire, are of increasing concern to managers, conservationists, researchers, and culture bearers in the Pacific Northwest. Warmer temperatures exacerbate forest stress by accelerating evaporation and drying-out of the land surface and vegetation. These hotter drought conditions have been implicated in recent tree mortality events regionally and across the globe. Managers need science-based tools to assess risks posed by droughts, heat waves, and other climate-induced stressors, as well as practical solutions for adapting current management practices. The realities of climate change have spurred interest in tailoring silvicultural practices to increase forest...
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Since time immemorial, the nearshore habitats of the Salish Sea, the shared estuarine waters between coastal British Columbia and Washington State, have provided crucial habitats for many culturally important species: nursery areas for Dungeness crab, critical juvenile rearing areas for migrating Pacific salmon, and sedimentary deltas laden with clams and oysters. Together these animals form the basis of indigenous Salish People’s food sovereignty and help define their way of life. Yet today, these resources are at risk from the invasive European green crab (EGC), which was brought to the area under oceanic conditions exacerbated by climate change and is thriving due to the crabs’ ability to quickly adapt. The EGC...
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Native mussels are in precipitous decline across North America. As part of the Confederated Tribes of the Umatilla Indian Reservation’s (CTUIR) First Foods management framework that places significant value on the cultural importance of traditional food resources, they have been identified as a top conservation priority in the Pacific Northwest. Freshwater mussels are a vital component of river ecosystems, a historic food resource, and were used for adornment, jewelry, tools, and trade. Yet, little is known about the basic biology and ecology of these organisms, including where they are, how many of them remain, and what habitat characteristics (e.g., water temperature, flow, etc.) are important to them. There is...
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Oregon’s Upper Klamath Basin is one of the warmest watersheds in the Pacific Northwest. Despite its naturally warm waters, the basin supports abundant redband trout. These are some of the largest-bodied trout in the entire U.S., and are a culturally and economically important species, providing the last remaining subsistence fishery for the Klamath Tribes and drawing recreational anglers. The ability of this coldwater species to survive in one of the region’s warmest watersheds could hold valuable clues for conservation in the face of warming global temperatures, which represents one of the biggest threats to North America’s coldwater fish. Previous research has found that redband trout rely heavily on spring-fed...
    map background search result map search result map Improving the Success of Post-Fire Adaptive Management Strategies in Sagebrush Steppe Big Sagebrush Response to Wildfire and Invasive Grasses in the 21st Century Predicting Climate-Induced Expansions of Invasive Fish in the Pacific Northwest: Implications for Climate Adaptation of Native Salmon and Trout How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River Climate Refugia and Resilience Atlas: Identifying Priority Areas for Conserving Species of Concern in a Changing Climate Examining the Effects of Climate on American Indian Uses of Forests in Pacific Northwest and Northern California Estimating the Spatial and Temporal Extent of Snowpack Properties in Complex Terrain: Leveraging Novel Data to Adapt Wildlife and Habitat Management Practices to Climate Change Evaluating Species’ Adaptive Capacity in a Changing Climate: Applications to Natural-Resource Management in the Northwestern U.S. Harnessing the Hydraulic Traits of Trees to Adapt Forest Management in the Pacific Northwest Maximizing Trap Efficiency on Lummi Nation Estuarine Habitats to Reduce Ecosystem Impacts from Invasive European Green Crab Where the Creek Meets the Tide: Effects of Climate Change on Salmon, Homes, and Businesses, and the Squaxin Island Tribe Development of a Surface Water Index of Permanence (SWIPe) Database to Assess Surface Water Availability for Ecohydrological Refugia Native and Invasive Bivalves in the Pacific Northwest: Co-occurrence, Habitat Associations and Potential Competition in the Face of Climate Change Informing Decisions to Resist, Accept, or Direct Post-fire Vegetation Transitions The Influence of Climate Change on the Vulnerability of At-Risk Amphibians to Disease and Invasive Species in the Northwest Climate Adaptability and Ecological Connectivity of Wildlife Communities in Multi-Use Sagebrush-Steppe Landscapes Integrating Economics and Ecology to Inform Climate-Ready Aquatic Invasive Species Management for Vulnerable Pacific Northwest River Communities Anticipating Climate-Driven Spread and Impact of Multiple Interacting Invasive Species in the Columbia River Basin Maximizing Trap Efficiency on Lummi Nation Estuarine Habitats to Reduce Ecosystem Impacts from Invasive European Green Crab Where the Creek Meets the Tide: Effects of Climate Change on Salmon, Homes, and Businesses, and the Squaxin Island Tribe How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River Integrating Economics and Ecology to Inform Climate-Ready Aquatic Invasive Species Management for Vulnerable Pacific Northwest River Communities Harnessing the Hydraulic Traits of Trees to Adapt Forest Management in the Pacific Northwest Anticipating Climate-Driven Spread and Impact of Multiple Interacting Invasive Species in the Columbia River Basin Examining the Effects of Climate on American Indian Uses of Forests in Pacific Northwest and Northern California Climate Refugia and Resilience Atlas: Identifying Priority Areas for Conserving Species of Concern in a Changing Climate Estimating the Spatial and Temporal Extent of Snowpack Properties in Complex Terrain: Leveraging Novel Data to Adapt Wildlife and Habitat Management Practices to Climate Change Evaluating Species’ Adaptive Capacity in a Changing Climate: Applications to Natural-Resource Management in the Northwestern U.S. Native and Invasive Bivalves in the Pacific Northwest: Co-occurrence, Habitat Associations and Potential Competition in the Face of Climate Change The Influence of Climate Change on the Vulnerability of At-Risk Amphibians to Disease and Invasive Species in the Northwest Climate Adaptability and Ecological Connectivity of Wildlife Communities in Multi-Use Sagebrush-Steppe Landscapes Development of a Surface Water Index of Permanence (SWIPe) Database to Assess Surface Water Availability for Ecohydrological Refugia Improving the Success of Post-Fire Adaptive Management Strategies in Sagebrush Steppe Big Sagebrush Response to Wildfire and Invasive Grasses in the 21st Century Informing Decisions to Resist, Accept, or Direct Post-fire Vegetation Transitions Predicting Climate-Induced Expansions of Invasive Fish in the Pacific Northwest: Implications for Climate Adaptation of Native Salmon and Trout