Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10382
Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex
Mozambique tilapia Oreochromis mossambicus were recently discovered in ‘Aimakapā Fishpond, a 12-hectare brackish-water wetland complex in Kaloko-Honokōhau National Historical Park, on the Island of Hawai’i. As a possible eradication method, we evaluated rotenone, a natural piscicide used in fish management and the active ingredient in plants traditionally used by indigenous Hawaiians for...
Authors
Leo Nico, Ronald A. Englund, Howard L. Jelks
Depth-dependent groundwater quality sampling at City of Tallahassee test well 32, Leon County, Florida, 2013 Depth-dependent groundwater quality sampling at City of Tallahassee test well 32, Leon County, Florida, 2013
Public-supply wells sometimes produce water of less than desirable quality because contaminants can migrate to the open interval of wells through preferential pathways. If these pathways can be identified, zones that produce poor quality water can be excluded during the well-construction process. The U.S. Geological Survey has developed geophysical testing methods that can be used to...
Authors
W. Scott McBride, Michael A. Wacker
Convergent evolution of the genomes of marine mammals Convergent evolution of the genomes of marine mammals
Marine mammals from different mammalian orders share several phenotypic traits adapted to the aquatic environment and therefore represent a classic example of convergent evolution. To investigate convergent evolution at the genomic level, we sequenced and performed de novo assembly of the genomes of three species of marine mammals (the killer whale, walrus and manatee) from three...
Authors
Andrew D. Foote, Yue Liu, Gregg W.C. Thomas, Tomas Vinar, Jessica Alfoldi, Jixin Deng, Shannon Dugan, Cornelis E. van Elk, Margaret Hunter, Vandita Joshi, Ziad Khan, Christie Kovar, Sandra L. Lee, Kerstin Lindblad-Toh, Annalaura Mancia, Rasmus Nielsen, Xiang Qin, Jiaxin Qu, Brian J. Raney, Nagarjun Vijay, Jochen B. W. Wolf, Matthew W. Hahn, Donna M. Muzny, Kim C. Worley, M. Thomas P. Gilbert, Richard A. Gibbs
Enhanced understanding of ectoparasite: host trophic linkages on coral reefs through stable isotope analysis Enhanced understanding of ectoparasite: host trophic linkages on coral reefs through stable isotope analysis
Parasitism, although the most common type of ecological interaction, is usually ignored in food web models and studies of trophic connectivity. Stable isotope analysis is widely used in assessing the flow of energy in ecological communities and thus is a potentially valuable tool in understanding the cryptic trophic relationships mediated by parasites. In an effort to assess the utility...
Authors
Amanda W.J. Demopoulos, Paul C. Sikkel
The effects of sample scheduling and sample numbers on estimates of the annual fluxes of suspended sediment in fluvial systems The effects of sample scheduling and sample numbers on estimates of the annual fluxes of suspended sediment in fluvial systems
Since the 1970s, there has been both continuing and growing interest in developing accurate estimates of the annual fluvial transport (fluxes and loads) of suspended sediment and sediment-associated chemical constituents. This study provides an evaluation of the effects of manual sample numbers (from 4 to 12 year−1) and sample scheduling (random-based, calendar-based and hydrology-based)...
Authors
Arthur J. Horowitz, Robin T. Clarke, Gustavo Henrique Merten
Lithologic and hydrologic controls of mixed alluvial-bedrock channels in flood-prone fluvial systems: bankfull and macrochannels in the Llano River watershed, central Texas, USA Lithologic and hydrologic controls of mixed alluvial-bedrock channels in flood-prone fluvial systems: bankfull and macrochannels in the Llano River watershed, central Texas, USA
The rural and unregulated Llano River watershed located in central Texas, USA, has a highly variable flow regime and a wide range of instantaneous peak flows. Abrupt transitions in surface lithology exist along the main-stem channel course. Both of these characteristics afford an opportunity to examine hydrologic, lithologic, and sedimentary controls on downstream changes in channel...
Authors
Frank T. Heitmuller, Paul F. Hudson, William H. Asquith
Core-satellite species hypothesis and native versus exotic species in secondary succession Core-satellite species hypothesis and native versus exotic species in secondary succession
A number of hypotheses exist to explain species’ distributions in a landscape, but these hypotheses are not frequently utilized to explain the differences in native and exotic species distributions. The core-satellite species (CSS) hypothesis predicts species occupancy will be bimodally distributed, i.e., many species will be common and many species will be rare, but does not explicitly...
Authors
Kelsey A. Martinez, David J. Gibson, Beth A. Middleton
Genetic analysis of invasive Asian Black Carp (Mylopharyngodon piceus) in the Mississippi River Basin: evidence for multiple introductions Genetic analysis of invasive Asian Black Carp (Mylopharyngodon piceus) in the Mississippi River Basin: evidence for multiple introductions
Invasive Asian Black Carp (Mylopharyngodon piceus) have been present in USA aquaculture facilities since the 1980s and wild Black Carp have been found in the Mississippi River Basin since the early 1990s. This study characterizes the genetic diversity and relatedness of the Basin’s Black Carp and clarifies the introduction history. Analyses focused on three mitochondrial markers (control...
Authors
Margaret E. Hunter, Leo G. Nico
Erratum to: Estimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management Erratum to: Estimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management
Erratum to: Mar Biol (2014) 161:2659–2668 DOI 10.1007/s00227-014-2537-0 The Open Robust Model methods used for analysis in this study were developed by Kendall and Bjorkland (2001) and Kendall (2010). The language used in this manuscript to describe formatting and implementation of data for these analyses was derived heavily from Phillips et al. (2014). Therefore, the wording in the last...
Authors
Margaret M. Lamont, Ikuko Fujisaki, Raymond R. Carthy
Multilevel learning in the adaptive management of waterfowl harvests: 20 years and counting Multilevel learning in the adaptive management of waterfowl harvests: 20 years and counting
In 1995, the U.S. Fish and Wildlife Service implemented an adaptive harvest management program (AHM) for the sport harvest of midcontinent mallards (Anas platyrhynchos). The program has been successful in reducing long-standing contentiousness in the regulatory process, while integrating science and policy in a coherent, rigorous, and transparent fashion. After 20 years, much has been...
Authors
Fred A. Johnson, G. Scott Boomer, Byron K. Williams, James D. Nichols, David J. Case
Flood-inundation maps and wetland restoration suitability index for the Blue River and selected tributaries, Kansas City, Missouri, and vicinity, 2012 Flood-inundation maps and wetland restoration suitability index for the Blue River and selected tributaries, Kansas City, Missouri, and vicinity, 2012
Digital flood-inundation maps for a 39.7-mile reach of the Blue River and selected tributaries (Brush Creek, Indian Creek, and Dyke Branch) at Kansas City, Missouri, and vicinity, were created by the U.S. Geological Survey (USGS) in cooperation with the City of Kansas City, Missouri. The flood-inundation maps, accessed through the USGS Flood-Inundation Mapping Science Web site at http:/...
Authors
David C. Heimann, Brian P. Kelly, Seth E. Studley
Modelling the effects of seasonality and socioeconomic impact on the transmission of Rift Valley fever virus Modelling the effects of seasonality and socioeconomic impact on the transmission of Rift Valley fever virus
Rift Valley fever (RVF) is an important mosquito-borne viral zoonosis in Africa and the Middle East that causes human deaths and significant economic losses due to huge incidences of death and abortion among infected livestock. Outbreaks of RVF are sporadic and associated with both seasonal and socioeconomic effects. Here we propose an almost periodic three-patch model to investigate the
Authors
Yanyu Xiao, John C. Beier, Robert Stephen Cantrell, Chris Cosner, Donald L. DeAngelis, Shigui Ruan