Amphibian Life Cycles and Climate Change

From the trees in the forest to the various organisms populating it, all species of plants and animals have periodic life cycle events. Changes in climate have impacted the timing of these life cycle events for many species. This, in turn, can affect how likely coexisting populations are to interact with each other. A study…  More 

Bachman’s Warbler

From 1975 to 1979, Paul Hamel and colleagues spent 7,000 hours walking through the Francis Marion National Forest and adjacent lands in South Carolina, playing the song of the Bachman’s Warbler and listening for the response that never came. “Eventually, my adviser said ‘this is a biology department, not a history department!’ So I expanded…  More 

Can Southeastern Bats and Rock Climbers Share Cliffs?

“Researchers haven’t really studied cliffs as foraging areas for bats,” says USDA Forest Service scientist Susan Loeb. “When so little is known about that habitat, it can be hard to gauge the impacts of different uses or management plans.” Rapid growth in technical climbing has put rock climbers in the same spots as bats. How…  More 

Seminole Bats on the Move

Over the past 48 years, Seminole bats (Lasiurus seminolus) have drastically expanded their range. “The northern edge of their summer range has expanded by 323 miles,” says Roger Perry, a USDA Forest Service research wildlife biologist. “That’s approximately 7 miles a year since 1970.” The western range is also expanding, possibly because forests are replacing…  More 

E-Noses Detect Disease in Plants, Animals & Humans

The fragrance of a rose comes from volatile organic compounds. Living plants, animals, humans, and even inanimate objects emit complex mixtures of VOCs. VOC mixtures are so distinctive that new words are used to describe them: volatilome, breathprint, and smellprint. “There are over 2,000 VOCs in a person’s breath,” says USDA Forest Service scientist Dan…  More 

SRS Contributes to Fourth National Climate Assessment

Long hours, lots of reading, and collaborating with fellow scientists around the world is some of what goes into overseeing a chapter for the Fourth National Climate Assessment (NCA4). SRS senior research ecologist James Vose was a federal coordinating lead author and chapter lead for Chapter 6 – Forests of the NCA4. SRS senior economist…  More 

How I Joined the Wood-in-the-Water Choir

Not everyone knows from an early age what they want to do when they grow up. I did. Raised in a small coastal Maine town that was home base for marine and estuarine research and with an affinity for the outdoors, I knew I was destined to pursue a career in marine biology. Right out…  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 

Fish Hosts for Freshwater Mussels

For a few brief weeks of a mussel’s life, it is a true parasite, taking from its host and giving nothing in return. “Some mussels live more than forty years,” says USDA Forest Service scientist Wendell Haag. Only the larvae, or glochidia, are parasitic. “The interesting thing about this host relationship is that different mussel…  More