What Comes After Hemlock Woolly Adelgid?

The hemlock woolly adelgid, an exotic invasive insect that feeds on eastern and Carolina hemlocks, now occupies about half the range of native hemlock forests in the eastern United States. Once infested, hemlocks lose vigor and die within a 4 to 10 years. Most managers and scientists accept that as time goes on native hemlocks…  More 

Where Does the Nitrogen from Forest Fertilizers Go?

Pine plantations cover vast areas in the nearly flat, poorly drained high-water-table soils of the Atlantic Coastal Plain of the southeastern United States. Growing productive forests on these lands requires drainage and extra nitrogen from fertilizers. While most of the nitrogen from fertilizers remains in the plant-soil system, concerns exist that leached nitrogen could enter…  More 

Nosing Out Future Landslides

In the mountains of Southern Appalachia, landslides sometimes follow major rainstorms. Increases in the frequency of heavy rainfall events predicted under climate change could ramp up the risk of landslides in an area where development and roads crawl up steep hillsides. In western North Carolina, the North Carolina Geological Survey  documented over 2,700 landslides and…  More 

Forest Detectives Solve Asheville Watershed Mystery

  Scientists with the USDA Forest Service Eastern Forest Environmental Threat Assessment Center (EFETAC) headquartered at the Southern Research Station in Asheville, North Carolina, recently discovered an area of damaged trees within the watershed from which Asheville draws most of its water supply. Though monitoring forest health is an everyday role of the Forest Service,…  More 

In the Long Run: The Coweeta LTER

  Coweeta Included in Special Journal Issue on LTER Network A special issue of the journal Bioscience released on April 6 focuses on more than 30 years of scientific findings from the Long-Term Ecological Research (LTER) Network, including those from the Southern Research Station (SRS) Coweeta Hydrologic Laboratory (Coweeta). The National Science Foundation created the LTER…  More 

The Santee Experimental Forest at 75

On a cool spring day deep in the forest a short drive away from Charleston, South Carolina, more than 100 people showed up to celebrate 75 years of continual research at the  Forest Service Santee Experimental Forest (the Santee), one of 19 experimental forests maintained by the Southern Research Station (SRS). Established in 1937, the 6,100-acre…  More 

Cold Water for Trout

Joint research by SRS and the U.S. Geological Survey The names of southern rivers—Roanoke, French Broad, Neuse, Apalachicola, Tar, Tennessee—are nothing if not evocative. As you read them, you may think first of the long human history of the area—or picture the lazy flow of summer water—but the rivers and streams of the southeastern United…  More 

Removing Privet Helps Restore Native Bee Populations

When plants travel the world, they escape the checks and balances of their ancestral ecosystems and can multiply without bounds, competing with native plants for light, nutrients, and water. Do non-native invasive plants also disrupt native bee populations? Jim Hanula, research entomologist with the SRS Insects, Diseases and Invasive Plants unit, explored this question by comparing bee…  More 

The Water Web: More about WaSSI

Water quantity and quality issues affect every living thing on Earth, yet, until recently, methods for projecting possible future water supply scenarios were fairly limited. In the late 1990s, Southern Research Station (SRS) scientists participating in several national-scale assessments of climate change science and climate-related impacts discovered “a frustrating lack of landscape-scale, integrated ecosystem models from…  More 

Prestigious USDA Grants Support SRS Research in the Southern Appalachians

In the News Two SRS units—the Coweeta Hydrologic Laboratory and the Upland Hardwoods Ecology and Management unit—recently received word that their scientists, along with university collaborators, received grants from the USDA National Institute of Food and Agriculture (NIFA) Agriculture and Food Research Initiative (AFRI) for studies based in the Southern Appalachian region. AFRI supports research,…  More