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Publications

Publications from USGS science centers throughout the Southeast Region.

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Accounting for imperfect detection and survey bias in statistical analysis of presence-only data Accounting for imperfect detection and survey bias in statistical analysis of presence-only data

Aim During the past decade ecologists have attempted to estimate the parameters of species distribution models by combining locations of species presence observed in opportunistic surveys with spatially referenced covariates of occurrence. Several statistical models have been proposed for the analysis of presence-only data, but these models have largely ignored the effects of imperfect...
Authors
Robert M. Dorazio

Oil source-fingerprinting in support of polarimetric radar mapping of Macondo-252 oil in Gulf Coast marshes Oil source-fingerprinting in support of polarimetric radar mapping of Macondo-252 oil in Gulf Coast marshes

Polarimetric synthetic aperture radar (PolSAR) data exhibited dramatic, spatially extensive changes from June 2009 to June 2010 in Barataria Bay, Louisiana. To determine whether these changes were associated with the Deepwater Horizon (DWH) oil spill, twenty-nine sediment samples were collected in 2011 from shoreline and nearshore–interior coastal marsh locations where oil was not...
Authors
Elijah W. Ramsey, Buffy M. Meyer, Amina Rangoonwala, Edward Overton, Cathleen E. Jones, Terri Bannister

A visualization tool to support decision making in environmental and biological planning A visualization tool to support decision making in environmental and biological planning

Large-scale ecosystem management involves consideration of many factors for informed decision making. The EverVIEW Data Viewer is a cross-platform desktop decision support tool to help decision makers compare simulation model outputs from competing plans for restoring Florida's Greater Everglades. The integration of NetCDF metadata conventions into EverVIEW allows end-users from multiple
Authors
Stephanie S. Romañach, Mark McKelvy, Craig Conzelmann, Kevin J. Suir

The future of nearshore processes research The future of nearshore processes research

The nearshore is the transition region between land and the continental shelf including (from onshore to offshore) coastal plains, wetlands, estuaries, coastal cliffs, dunes, beaches, surf zones (regions of wave breaking), and the inner shelf (Figure ES-1). Nearshore regions are vital to the national economy, security, commerce, and recreation. The nearshore is dynamically evolving, is...

Genetic structure of Florida green turtle rookeries as indicated by mitochondrial DNA control region sequences Genetic structure of Florida green turtle rookeries as indicated by mitochondrial DNA control region sequences

Green turtle (Chelonia mydas) nesting has increased dramatically in Florida over the past two decades, ranking the Florida nesting aggregation among the largest in the Greater Caribbean region. Individual beaches that comprise several hundred kilometers of Florida’s east coast and Keys support tens to thousands of nests annually. These beaches encompass natural to highly developed...
Authors
Brian M. Shamblin, Dean A. Bagley, Llewellyn M. Ehrhart, Nicole A. Desjardin, R. Erik Martin, Kristen M. Hart, Eugenia Naro-Maciel, Kirt Rusenko, John C. Stiner, Debra Sobel, Chris Johnson, Thomas Wilmers, Laura J. Wright, Campbell J. Nairn

Inhalable desert dust, urban emissions, and potentially biotoxic metals in urban Saharan-Sahelian air Inhalable desert dust, urban emissions, and potentially biotoxic metals in urban Saharan-Sahelian air

Saharan dust incursions and particulates emitted from human activities degrade air quality throughout West Africa, especially in the rapidly expanding urban centers in the region. Particulate matter (PM) that can be inhaled is strongly associated with increased incidence of and mortality from cardiovascular and respiratory diseases and cancer. Air samples collected in the capital of a...
Authors
Virginia H. Garrison, Michael S. Majewski, Lassana Konde, Ruth E. Wolf, Richard D. Otto, Yutaka Tsuneoka

Contaminants of emerging concern in fresh leachate from landfills in the conterminous United States Contaminants of emerging concern in fresh leachate from landfills in the conterminous United States

To better understand the composition of contaminants of emerging concern (CECs) in landfill leachate, fresh leachate from 19 landfills was sampled across the United States during 2011. The sampled network included 12 municipal and 7 private landfills with varying landfill waste compositions, geographic and climatic settings, ages of waste, waste loads, and leachate production. A total of...
Authors
Jason R. Masoner, Dana W. Kolpin, Edward T. Furlong, Isabelle M. Cozzarelli, James L. Gray, Eric A. Schwab

Approximations of stand water use versus evapotranspiration from three mangrove forests in southwest Florida, USA Approximations of stand water use versus evapotranspiration from three mangrove forests in southwest Florida, USA

Leaves from mangrove forests are often considered efficient in the use of water during photosynthesis, but less is known about whole-tree and stand-level water use strategies. Are mangrove forests as conservative in water use as experimental studies on seedlings imply? Here, we apply a simple model to estimate stand water use (S), determine the contribution of S to evapotranspiration (ET...
Authors
Ken W. Krauss, Jordan G. Barr, Victor C. Engel, Jose D. Fuentes, Hongqing Wang

The effect of dilution and the use of a post-extraction nucleic acid purification column on the accuracy, precision, and inhibition of environmental DNA samples The effect of dilution and the use of a post-extraction nucleic acid purification column on the accuracy, precision, and inhibition of environmental DNA samples

Isolation of environmental DNA (eDNA) is an increasingly common method for detecting presence and assessing relative abundance of rare or elusive species in aquatic systems via the isolation of DNA from environmental samples and the amplification of species-specific sequences using quantitative PCR (qPCR). Co-extracted substances that inhibit qPCR can lead to inaccurate results and...
Authors
Anna M. Mckee, Stephen F. Spear, Todd W. Pierson

Identifying monitoring gaps for amphibian populations in a North American biodiversity hotspot, the southeastern USA Identifying monitoring gaps for amphibian populations in a North American biodiversity hotspot, the southeastern USA

I review the primary literature to ascertain the status of amphibian monitoring efforts in the southeastern USA, a “hotspot” for biodiversity in North America. This effort revealed taxonomic, geographic and ecological disparities in studies of amphibian populations in this region. Of the species of anurans and caudates known to occur in the Southeast, 73.8 and 33.3 %, respectively, have...
Authors
Susan C. Walls

Freshwater mussels of Florida Freshwater mussels of Florida

An exhaustive guide to all aspects of the freshwater mussel fauna in Florida,Freshwater Mussels of Florida covers the ecology, biology, distribution, and conservation of the many species of bivalve mollusks in the Sunshine State. In the past three decades, researchers, the public, businesses that depend on wildlife, and policy makers have given more attention to the threatened natural...
Authors
James D. Williams, Robert S. Butler, Gary L. Warren, Nathan A. Johnson
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