Genetics of Shortleaf and Longleaf Pine in Seed Orchards

Shortleaf pine (Pinus echinata) and longleaf pine (Pinus palustris) ecosystems have been dwindling for decades. Restoration is a huge priority for the USDA Forest Service, the Longleaf Pine Alliance, the Shortleaf Pine Initiative, and many others. Restoration requires seed, and on National Forest System lands the seed comes from USDA Forest Service seed orchards. The…  More 

Workshop on Shortleaf Pine in the Southern Appalachians

On March 3 and 4, 2020, about 25 silviculturists, foresters, fire management officers, timber specialists, and other USDA Forest Service experts gathered for a two-day workshop on shortleaf pine (Pinus echinata). In the southern Appalachians, shortleaf pine restoration is a major priority for national forests and others. The species has an extensive range but its…  More 

Wetland Silviculture & Water Tables

Water tables are everywhere, but their levels fluctuate – especially in the poorly drained clay soils of coastal South Carolina. Topography also affects water tables, and forested wetlands in the Coastal Plain tend to be flat. “They respond rapidly to rainfall and evapotranspiration,” says Devendra Amatya, a USDA Forest Service research hydrologist. Amatya is on…  More 

Research for Mississippi and Beyond

Water defines the Mississippi Delta, an alluvial plain in northwest Mississippi. The Delta is sandwiched between the Yazoo and Mississippi Rivers, and a network of levees and pumps aim to keep the land dry enough for habitation and agriculture. In 2019, however, historic flooding left fields inundated for months. USDA Forest Service scientists have served…  More 

Hemlock Seedlings Released from Shade

Eastern hemlock typically grows in shady environments, but its world is now infested by hemlock woolly adelgids (HWA). The miniscule sap-sucking insects can kill mature trees in less than five years. “Eastern hemlock is a shade-tolerant species,” says USDA Forest Service research entomologist Bud Mayfield. “But extra sunlight may help it survive HWA infestation.” Extra…  More 

Using Prescribed Fire to Restore and Sustain Oak Ecosystems

Used incorrectly, fire can degrade wood quality and its value as timber. When should managers use prescribed fire in hardwood stands? “I field a lot of questions from state and local partners about the long-term effects of using prescribed fire in hardwood stands,” says USDA Forest Service scientist Callie Schweitzer. Schweitzer has spent her career…  More 

Forest Birds & Forest Trees

For every stage of forest succession, there’s a bird species that needs it. But others are flexible, thriving in many types of forests. The blue-gray gnatcatcher, eastern wood-pewee, great crested flycatcher, summer tanager, and white-breasted nuthatch are all associated with mature forests. But a recent study suggests these birds are forest generalists rather than mature…  More 

Definitive New Book on Saproxylic Insects

Bark-feeders, fungus-feeders, wood-borers, and wood-nesting bees – all are saproxylic insects, which means they depend on dead or dying wood. The insects that prey on or parasitize them are also considered saproxylic. “About a third of all forest insect species are saproxylic,” says USDA Forest Service research entomologist Michael Ulyshen. Ulyshen recently edited a definitive…  More 

The Climate Is Changing—What’s a Silviculturist To Do?

Climate change is here. In southern forests, it takes the form of novel disturbances – different frequency and severity of drought, fire, wind storms, insect outbreaks, even ice storms – or a combination of these stressors. “How will managers respond to the threats posed by changing climate conditions?” asks USDA Forest Service scientist James Guldin.…  More 

Arkansas Research Forester Receives International and Regional Honors

Silvicultural histories are recognized by forestry professionals from the United Kingdom to Arkansas. The Editorial Board of Forestry, an international journal of forest research, recently awarded USDA Forest Service research forester Don Bragg the 2017 Percy Stubbs, John Bolton King and Edward Garfitt Prize for Silviculture for advancing silviculture research. Bragg received this prestigious award…  More