Southeast

Information about streamflow and streamflow variability is critical to assist natural resource managers when they make decisions related to the water needs of both human communities and ecosystems. In order for managers to effectively plan for and adapt to future climate and land cover conditions, they require information on changes that could occur in the distribution and quantity of...

Grasslands are plant communities that have few or no trees, or have open canopies that allow for the development of a grassy groundcover. Grasslands in the southeastern U.S. support rare plant and animal species and in some cases qualify as global or regional hotspots of biodiversity. Yet the Southeast’s grasslands have been reduced by approximately 90% since European settlement, as the...

Low-lying public lands along the northern Gulf of America coast are vulnerable to sea-level rise. Coastal planners and resource managers in the region have requested customized information that can be used to concisely communicate local sea-level rise scenarios and identify potential impacts to the missions of management agencies. In this project, researchers will work with partners to...

The pine rockland ecosystem is found only in south Florida and the Bahamas and provides important habitat for numerous rare and endemic plants and animals. These include 18 species that are already federally listed as threatened or endangered and four other species petitioned for listing that are scheduled for development of Species Status Assessments (SSAs). Today, south Florida’s pine...

Urbanization in the Southeast U.S. is among the fastest in the nation, and represents a primary threat to threatened and endangered species. As urbanized areas expand, they are encroaching on preserved areas, like national wildlife refuges, and are dividing forests into smaller fragments. Forests that are located next to cities and suburbs are exposed to high temperatures, pollution...

Barrier islands are exposed to a range of natural and human-caused changes, including hurricanes, sea-level rise, and dredging. These changes have the potential to influence the ability of barrier islands to serve as a first-line of defense for the mainland during storm events. Gulf Islands National Seashore, a National Park Service unit in the northern Gulf of America between Florida...

In the northern Gulf of America, mangrove forests have been expanding their northern range limits in parts of Texas, Louisiana, and north Florida since 1989. In response to warming winter temperatures, mangroves, which are dominant in warmer climates, are expected to continue migrating northward at the expense of salt marshes, which fare better in cooler climates. The ecological...

Arguably the most direct, intense, and long-lasting modification that humans can make to a landscape is converting rural lands to urbanized areas. As human populations grow, the demand for urbanized areas will increase, and scientists can help natural resource managers plan for these changes by creating models that predict potential patterns of future urbanization. The Southeast U.S. is

Changing climate conditions could have significant impacts on wildlife health. Shifts in temperature and precipitation may directly affect the occurrence of disease in fish and wildlife by altering their interactions with pathogens (such as the bacterium that causes Lyme disease), helping vectors like mosquitoes and ticks expand their range, or speeding up the time it takes for a...

Thousands of plant and animal species are culturally important to the Indigenous peoples of North America. Global change is leading to major shifts in the abundance, distribution, and life history of these species, with concomitant effects on their value to the peoples for whom they are most culturally important. While a number of studies have begun to explore the futures of culturally...

Coastal wetlands provide a suite of valuable benefits to people and wildlife, including important habitat, improved water quality, reduced flooding impacts, and protected coastlines. However, in the 21st century accelerated sea-level rise and coastal development are expected to greatly alter coastal landscapes across the globe. The future of coastal wetlands is uncertain, challenging...

Many shorebirds and nearshore waterbirds are of conservation concern across the Gulf of America due to stressors such as human disturbance, predation, and habitat loss and degradation. Conservation and protection of these birds is important for the functioning of healthy ecosystems and for maintaining biodiversity in North America. Consequently, resource managers along the gulf need...