Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10420
A new record of the late Pleistocene coral Pocillopora palmata from the Dry Tortugas, Florida reef tract, USA A new record of the late Pleistocene coral Pocillopora palmata from the Dry Tortugas, Florida reef tract, USA
Pocilloporid corals dominated shallow-water environments in the Caribbean during much of the Cenozoic; however, the regional diversity of this family declined over the last 15 My, culminating with the extinction of its final member, Pocillopora palmata, during the latest Pleistocene. Here we present a new record of P. palmata from Dry Tortugas National Park in the Florida Keys and infer...
Authors
Lauren T. Toth, Ilsa B. Kuffner, Hai Cheng, R. Lawrence Edwards
Assessment of environmental DNA for detecting presence of imperiled aquatic amphibian species in isolated wetlands Assessment of environmental DNA for detecting presence of imperiled aquatic amphibian species in isolated wetlands
Environmental DNA (eDNA) is an emerging tool that allows low-impact sampling for aquatic species by isolating DNA from water samples and screening for DNA sequences specific to species of interest. However, researchers have not tested this method in naturally acidic wetlands that provide breeding habitat for a number of imperiled species, including the frosted salamander (Ambystoma...
Authors
Anna M. McKee, Daniel L. Calhoun, William J. Barichivich, Stephen F. Spear, Caren S. Goldberg, Travis C Glenn
Characterization of the putatively introduced red alga Acrochaetium secundatum (Acrochaetiales, Rhodophyta) growing epizoically on the pelage of southern sea otters (Enhydra lutris nereis) Characterization of the putatively introduced red alga Acrochaetium secundatum (Acrochaetiales, Rhodophyta) growing epizoically on the pelage of southern sea otters (Enhydra lutris nereis)
Ecological associations between epibionts (organisms that live on the surface of another living organism) and vertebrates have been documented in both marine and terrestrial environments, and may be opportunistic, commensal, or symbiotic (Lewin et al. 1981, Holmes 1985, Allen et al. 1993, Bledsoe et al. 2006, Pfaller et al. 2008, Suutari et al. 2010). Although epibiont proliferation is...
Authors
Gena B. Bentall, Barry H. Rosen, Jessica M. Kunz, Melissa A. Miller, Gary W. Saunders, Nicole L. LaRoche
Operational considerations for implementing regional sediment management plans in the northern Gulf of Mexico Operational considerations for implementing regional sediment management plans in the northern Gulf of Mexico
Development of a comprehensive and stakeholder-driven Regional Sediment Management plan can provide the basis for long-term sustainable resource use and protection. This paper highlights three operational components that can positively influence sediment management at a regional scale, including (1) integration of an operational sediment budget, (2) development of a monitoring and...
Authors
Steven G. Underwood, Syed M. Khalil, Mark R. Byrnes, Gregory D. Steyer, Richard C Raynie
Effects of sediment burial on grass carp, Ctenopharyngodon idella (Valenciennes,1844), eggs Effects of sediment burial on grass carp, Ctenopharyngodon idella (Valenciennes,1844), eggs
It is thought that grass carp (Ctenopharyngodon idella) eggs must remain suspended in the water column in order to hatch successfully. Using sand, the effects of varying sediment levels on grass carp eggs were tested at different developmental states and temperatures. Survival was high (15–35%, depending on temperature and trial) in the unburied treatment where eggs rested on a sand bed...
Authors
Amy E. George, Duane Chapman, Joseph E. Deters, Susannah O. Erwin, Cari-Ann Hayer
Complex mixtures, complex responses: Assessing pharmaceutical mixtures using field and laboratory approaches Complex mixtures, complex responses: Assessing pharmaceutical mixtures using field and laboratory approaches
Pharmaceuticals are present in low concentrations (
Authors
Heiko L. Schoenfuss, Edward T. Furlong, Patrick J. Phillips, Tia-Marie Scott, Dana W. Kolpin, Marina Cetkovic-Cvrlje, Kelsey E. Lesteberg, Daniel C. Rearick
NEXRAD quantitative precipitation estimates, data acquisition, and processing for the DuPage County, Illinois, streamflow-simulation modeling system NEXRAD quantitative precipitation estimates, data acquisition, and processing for the DuPage County, Illinois, streamflow-simulation modeling system
Next-Generation Radar (NEXRAD) has become an integral component in the estimation of precipitation (Kitzmiller and others, 2013). The high spatial and temporal resolution of NEXRAD has revolutionized the ability to estimate precipitation across vast regions, which is especially beneficial in areas without a dense rain-gage network. With the improved precipitation estimates, hydrologic...
Authors
Terry W. Ortel, Ryan R. Spies
Development of an Assessment Tool for Agricultural Best Management Practice Iimplementation in the Great Lakes Restoration Initiative Priority Watersheds—Alger Creek, Tributary to Saginaw River, Michigan Development of an Assessment Tool for Agricultural Best Management Practice Iimplementation in the Great Lakes Restoration Initiative Priority Watersheds—Alger Creek, Tributary to Saginaw River, Michigan
The Great Lakes face a number of serious challenges that cause damage to water quality, habitat, ecology, and coastal health. Excess nutrients from point and nonpoint sources have a history of causing harmful algal blooms (HABs); since the late 1990s, a resurgence of HABs have forced beach closures and resulted in water quality impairments across the Great Lakes. Studies increasingly...
Authors
Katherine R. Merriman
Development of an Assessment Tool for Agricultural Best Management Practice Implementation in the Great Lakes Restoration Initiative Priority Watersheds—Eagle Creek, Tributary to Maumee River, Ohio Development of an Assessment Tool for Agricultural Best Management Practice Implementation in the Great Lakes Restoration Initiative Priority Watersheds—Eagle Creek, Tributary to Maumee River, Ohio
Introduction The Great Lakes face a number of serious challenges that cause damage to water quality, habitat, ecology, and coastal health. Excess nutrients from point and nonpoint sources have a history of causing harmful algal blooms (HABs); since the late 1990s, a resurgence of HABs have forced beach closures and resulted in water quality impairments across the Great Lakes. Studies...
Authors
Katherine R. Merriman
Development of an Assessment Tool for Agricultural Best Management Practice Implementation in the Great Lakes Restoration Initiative Priority Watersheds—Upper East River, Tributary to Green Bay, Wisconsin Development of an Assessment Tool for Agricultural Best Management Practice Implementation in the Great Lakes Restoration Initiative Priority Watersheds—Upper East River, Tributary to Green Bay, Wisconsin
Introduction The Great Lakes face a number of serious challenges that cause damage to water quality, habitat, ecology, and coastal health. Excess nutrients from point and nonpoint sources have a history of causing harmful algal blooms (HABs); since the late 1990s, a resurgence of HABs have forced beach closures and resulted in water quality impairments across the Great Lakes. Studies...
Authors
Katherine R. Merriman
Determining habitat quality for species that demonstrate dynamic habitat selection Determining habitat quality for species that demonstrate dynamic habitat selection
Determining habitat quality for wildlife populations requires relating a species' habitat to its survival and reproduction. Within a season, species occurrence and density can be disconnected from measures of habitat quality when resources are highly seasonal, unpredictable over time, and patchy. Here we establish an explicit link among dynamic selection of changing resources, spatio...
Authors
James M. Beerens, Peter C Frederick, Erik G Noonburg, Dale E. Gawlik
The relationship between the ratio of strontium to calcium and sea-surface temperature in a modern Porites astreoides coral: Implications for using P. astreoides as a paleoclimate archive The relationship between the ratio of strontium to calcium and sea-surface temperature in a modern Porites astreoides coral: Implications for using P. astreoides as a paleoclimate archive
An inverse relationship has been demonstrated between water temperature and the ratio of strontium to calcium (Sr/Ca) in coral aragonite for a number of Pacific species of the genus Porites. This empirically determined relationship has been used to reconstruct past sea-surface temperature (SST) from modern and Holocene age coral archives. A study was conducted to investigate this...
Authors
Tess E. Busch, Jennifer A. Flannery, Julie N. Richey, Anastasios Stathakopoulos