Electrofishing for Crayfish

Since its origin, more than 40,000 years ago, fishing has taken a variety of forms — from spearing to hook-and-line fishing. In the 1960s, scientists began using a method called “electrofishing” to study aquatic populations. In a study published in the North American Journal of Fisheries Management, USDA Forest Service scientist Zanethia Barnett researched the…  More 

One Treatment Does Not Fit All Sizes

Bats are important components of healthy forests and provide critical ecological services across numerous different ecosystems. For decades, bat populations throughout the southern U.S. have been declining due to habitat disturbance and loss. USDA Forest Service scientist Susan Loeb contributed to two recent publications to address this issue, suggesting ways to improve bat management practices…  More 

Freshwater Fishes of North America, Volume 2

The highly anticipated second volume of Freshwater Fishes of North America was just published by Johns Hopkins University Press. This volume was edited by USDA Forest Service fisheries research scientist Mel Warren and four other editors. Warren also contributed to seven of the book’s 35 chapters. “We are indebted to a large community of ichthyologists,…  More 

Detecting the Pathogen That Stalks the Endangered Florida Torreya

Florida torreya (Torreya taxifolia) is a critically endangered conifer tree in swift decline since the 1950s. The torreya fungus (Fusarium torreyae) is currently devastating the remaining Florida torreya population. The fungus forms cankers, or localized dead areas, that damage branch or trunk tissue and eventually kill the trees. In the face of extinction from this…  More 

Darter Conservation

Increasingly, recovery plans for imperiled fish species include raising them in captivity and releasing them in the wild. Crystal Ruble of Conservation Fisheries, Inc, with SRS researchers Ken Sterling and Melvin Warren published a protocol for captive propagation of the Yazoo Darter (Etheostoma raneyi). The researchers also summarize its early life-history. Compared to other darter…  More 

Pondberry Responds to Light Availability and Soil Flooding

Pondberry is endangered, but it can persist through environmental stress. It prefers partial sun but can linger in deep shade for years. It can survive long periods of soil flooding, and even flowers while it’s flooded. “All indications are that this species would benefit from active management,” says Emile Gardiner, a USDA Forest Service research…  More 

Managing Forests to Conserve Bat Populations Affected by White-Nose Syndrome

In March 2016, scientists found bats infected with white-nose syndrome (WNS), a fungal disease that’s killed millions of North American bats across the eastern United States, in Washington state, over 1,000 miles from the nearest confirmed infection site in eastern Oklahoma. Because most bat species in the U.S. eat phenomenal numbers of insects, bats are important to agriculture and to forests and…  More 

Fishing for Clues to Mussel Decline in Horse Lick Creek

How do U.S. Forest Service research scientists take their experiments from the laboratory to the field? For a first-hand look at the field sampling and data collection, collaboration with Forest Service and university partners, and extensive planning that happens behind the scenes, I spent a day with the Forest Service Southern Research Station (SRS) Center for…  More 

Freshwater Crayfish in Peril Worldwide

In early January, scientists led by the Zoological Society of London (ZSL) published results of a global assessment that shows that almost a third of the world’s species of crayfish are threatened with extinction. U.S. Forest Service aquatic ecologist Susie Adams was a co-author on the report and provided important information about North American crayfish…  More 

Conservation and Management of Eastern Big-Eared Bats

Published in 2012, the U.S. Forest Service publication Conservation and Management of Eastern Big-Eared Bats  brings together the latest knowledge about eastern big-eared bats. Edited by Forest Service Southern Research Station (SRS) researcher Susan Loeb, University of Kentucky professor Michael Lacki, and Weyerhauser manager Darren Miller, the publication features proceedings from a 2010 symposium. The publication…  More