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News & Events
Monitoring Frog & Toad Populations?
Over the past few decades, scientists have become increasingly concerned about amphibians. “Populations of many frog and toad species have declined,” says U.S. Forest Service research ecologist Katie Greenberg. “The global decline highlights the need to monitor frogs and toads where they live.”
Women in Science: Callie Schweitzer
Meet SRS scientist Callie Schweitzer, a research forester with the Upland Hardwood Ecology and Management Research Unit in Huntsville, Alabama. She received her doctorate and master’s degrees in Forest Resources and Ecology from Pennsylvania State University.
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.”
Latest Publications
- Vertical distribution and persistence of soil organic carbon in fire-adapted longleaf pine forests
Butnor, John R.; Samuelson, Lisa J.; Johnsen, Kurt H.; Anderson, Peter H.; Gonzalez Benecke, Carlos A.; Boot, Claudia M.; Cotrufo, M. Francesca; Heckman, Katherine A.; Jackson, Jason A.; Stokes, Thomas A.; Zarnoch, Stanley J. - Structural complexity and developmental stage after an intermediate-scale wind disturbance on an upland Quercus stand
Cox, Lauren E.; Hart, Justin L.; Schweitzer, Callie J.; Dey, Daniel C. - Amphibian breeding phenology and reproductive outcome: an examination using terrestrial and aquatic sampling
Greenberg, C.H.; Johnson, S.A.; Owen, R.; Storfer, A. - Weather, hydroregime, and breeding effort influence juvenile recruitment of anurans: implications for climate change
Greenberg, C. H.; Zarnoch, S. J.; Austin, J. D. - Repeated burning alters the structure and composition of hardwood regeneration in oak-dominated forests of eastern Kentucky, USA
Keyser, Tara L.; Arthur, Mary; Loftis, David L.