Plants

Increasing severe drought events occurring across the Colorado Plateau can harm vegetation and create drier and more flammable fuel for wildfire. Researchers supported by this Southwest CASC project will analyze drought indices and satellite data to show how quickly after drought begins that different types of vegetation across the region show signs of health declines and increased flammability. T

The sandbar willow of the Klamath River is used within the Karuk Tribe’s ongoing cultural practices of basketweaving. The willow has been threatened by intensifying fire and dams, but restoration and the recent historical dam removals provide an opportunity to increase the quantity, quality, and access to this important resource. Researchers supported by this Southwest CASC project will study how

Recent catastrophic droughts and wildfires have killed almost 20% of mature giant sequoia trees across California, and it is uncertain whether natural seedling regeneration will be enough to restore these forests, especially in severely burned areas. Researchers supported by this Southwest CASC project will assess whether soil conditions, such as moisture and soil microbial communities can increas

Tallgrass prairies in the U.S. Southern Great Plains are threatened by the aggressive invasive plant Lespedeza cuneata, and climate change is expected to affect its spread in complex ways. Researchers supported by this South Central CASC project will use remote sensing, climate science, and ecological modelling to detect the plant, identify climate factors driving its spread, and identify future v

An invasive species is a species that is not native to a location and that rapidly grows and spreads in its new range, often damaging native plants and wildlife. At present, the southeastern USA harbors thousands of invasive plants and animals, which were introduced intentionally through the plant and pet trade or unintentionally through other forms of commercial trade. Many of these invasive spec

Soil-climate describes the temperature and moisture conditions important for plant growth and function. Soil condition patterns determine which vegetation is most abundant, thus controlling which habitats, invasive species, fuels, and economic activities are present in a region. Here, we use a model to simulate the vertical movement of water in a soil profile to provide insights into landscape...

Water levels in the Great Lakes are fluctuating in ways that we have not seen in the past, with both historically low- and high-water levels occurring in the last decade. Expectations are that larger and more frequent water-level fluctuations will occur in response to climate change. The increased variability in lake levels has implications for the management of invasive plants found in the coasta

Hawaiʻi is known as the “endangered species capital of the world,” an unwelcomed label brought on by more than a century of habitat destruction, invasive species spread, and pollinator and seed disperser declines. Hawaiʿi is home to 400 endangered plant species, most of which are found nowhere else in the world. Conservation managers have spent decades putting enormous effort into carefully reintr

The southeastern U.S. is home to many rare plant species, some at risk of extinction. A new national list has identified the top plant “Species of Greatest Conservation Need” (SGCN) across the region which can help southeastern states update their State Wildlife Action Plans (SWAPs) to include plants for the first time. In partnership with the Southeast Plant Conservation Alliance, NatureServe, a

Climate change threatens plants and animals across the US, making it important to have tools that can efficiently assess species’ vulnerabilities. In this project, CASC scientists and NatureServe are collaborating to update a popular Climate Change Vulnerability Index to include the latest scientific data, improved metrics, and new user-friendly technology. The tool will help state biologists and

Ecosystems respond to disturbances (such as wildfire) and changing climate in a variety of ways, including persistence, recovery, and reorganization into new combinations. Some species respond by migrating across the landscape over time, which allows them to keep up with changing climate. Many forests recover after wildfire by regenerating from seeds, and public land managers often assist these pr

Plant species are at risk under climate change because their slow dispersal rates limit their ability to shift their spatial distribution in response to rapidly changing conditions. Conservation managers seek to maintain resilient plant communities by planting more native species that are adapted to future climates. However, managers rarely have enough information about which native species are be