The Future of Fish in the NC Piedmont

What will fish communities of the North Carolina Piedmont look like in the future? “Many factors could affect this,” says U.S. Forest Service research hydrologist Peter Caldwell. “Water withdrawals could be one of the most important.” Water withdrawn from rivers may eventually flow out of kitchen faucets. Many municipalities get drinking water from rivers and…  More 

Climate Influences Male-Female Balance in Longleaf Pines

For many reptile and fish species, temperature during egg incubation determines whether hatchlings are male or female. In the northern part of Australia’s Great Barrier Reef, scientists have discovered that 99 percent of immature green turtles hatched in warming sands are female, raising concerns about successful reproduction in the future. U.S. Forest Service scientists have…  More 

Daily Precipitation Patterns Are Changing at Coweeta

Since 1950, heavy rains have become more common in the southern Appalachians. U.S. Forest Service researchers have witnessed such changes at Coweeta Hydrologic Laboratory. Coweeta was established in 1934. Its location in the mountains of western North Carolina is no accident – early Forest Service researchers strategically selected it. “Coweeta receives as much as 90…  More 

How Cold Is Too Cold for Redbay Ambrosia Beetles?

Nonnative redbay ambrosia beetles and the fungus they carry have killed hundreds of millions of trees in the Southeast since first detected in 2002. Currently, only cold temperatures limit the beetles’ establishment and spread in the eastern United States. A study led by Mississippi State University involving U.S. Forest Service researchers determined the coldest temperatures…  More 

Sustainable Growth & the Future of Forested Watersheds

Forests provide high quality and dependable supplies of surface water. More than 19 million people in the Southeast get at least some of their drinking water from national forests, as U.S. Forest Service research revealed. However, most forest land in the Southeast U.S. is privately owned. Such land could be converted to other uses in…  More 

Conserving Eastern Hemlock

Where can you go to find an eastern hemlock tree? Although threatened by the hemlock woolly adelgid, eastern hemlock has an extensive range. “Eastern hemlock grows throughout the southern Appalachians,” says U.S. Forest Service collaborator and ecologist Kevin Potter. Potter is also a forestry faculty member at North Carolina State University. “Hemlock grows in the…  More 

Fish Production in Southern Appalachians

Packing on the pounds – or ounces – indicates that fish have what they need to survive and grow. “Fish production is a great way to estimate ecosystem productivity,” says U.S. Forest Service researcher Andy Dolloff. Production refers to how quickly fish gain weight and grow in size. “Production is a function of how many…  More 

30 Years of Nitrogen Fertilization in Spruce-Fir Forest

Rocks and sediments bind up almost 98 percent of all nitrogen. The remaining 2 percent is in motion, part of a global chemical cycle that includes humans, bacteria, plants, and the atmosphere. “Plants need nitrogen to grow,” says U.S. Forest Service research ecologist Steve McNulty. “However, excess nitrogen can harm plants.” Nitrogen and sulfur can…  More 

Frogs, Toads, and Ephemeral Wetlands

When ephemeral wetlands swell with water, frogs and toads congregate to breed and lay their eggs,which hatch into tadpoles. “That’s risky business,” says U.S. Forest Service research ecologist Katie Greenberg. “Wetlands could dry before tadpoles metamorphose into juveniles.” If ephemeral wetlands dry out before the tadpoles develop lungs and become froglets or toadlets, an entire…  More 

Air, Water, and Wavelets

We know air temperature has increased over the last 15-20 years, and that it will continue to do so on an unprecedented scale. But we are still learning exactly how this air trend impacts water. As it turns out, air temperature is linked to changes in our streams — affecting things like flow, soil moisture,…  More