Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
A comparison of the Trojan Y Chromosome strategy to harvesting models for eradication of nonnative species
The Trojan Y Chromosome strategy (TYC) is a promising eradication method for biological control of nonnative species. The strategy works by manipulating the sex ratio of a population through the introduction of supermales that guarantee male offspring. In the current study, we compare the TYC method with a pure harvesting strategy. We also analyze a hybrid harvesting model that mirrors the TYC str
Authors
Jingjing Lyu, Pamela J. Schofield, Kristen Reaver, Matthew Beauregard, Rana D. Parshad
Improved genetic identification of acipenseriform embryos with application to the endangered pallid sturgeon Scaphirhynchus albus
We produced pallid sturgeon Scaphirhynchus albus embryos at five pre‐hatch developmental stages and isolated and quantified genomic DNA from four of the stages using four commercial DNA isolation kits. Genomic DNA prepared using the kit that produced the largest yields and concentrations were used for microsatellite DNA analyses of 10–20 embryos at each of the five developmental stages. We attempt
Authors
Tom Kashiwagi, Aaron J. Delonay, Patrick Braaten, Kimberly Chojnacki, Rachel M. Gocker, Edward J. Heist
A pragmatic approach for comparing species distribution models to increasing confidence in managing piping plover habitat
Conservation management often requires decision-making without perfect knowledge of the at-risk species or ecosystem. Species distribution models (SDMs) are useful but largely under-utilized due to model uncertainty. We provide a case study that utilizes an ensemble modeling approach of two independently derived SDMs to explicitly address common modeling impediments and to directly inform conserva
Authors
Brooke Maslo, Sara Zeigler, Evan Drake, Todd Pover, Nathaniel G. Plant
Morphodynamic modelling of the wilderness breach, Fire Island, New York. Part I: Model set-up and validation
On October 29, 2012, storm surge and large waves produced by Hurricane 13 Sandy resulted in the formation of a breach in eastern Fire Island, NY. The goals of this study 14 are to gain a better understanding of the physical processes that govern breach behavior and 15 to assess whether process-based models can be used to forecast the evolution of future 16 breaches. The Wilderness Breach grew rapi
Authors
Maarten van Ormondt, Timothy Nelson, Cheryl Hapke, Dano Roelvink
A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013
Executive SummaryThe New York-Pennsylvania area has a long history of hydrocarbon extraction, and the addition of shale gas extraction methods contributes to landscape disturbance borne by previously developed oil and non-shale gas resources. The main unconventional extraction method used to extract shale gas from the Marcellus Shale located in New York and Pennsylvania is hydraulic fracturing, or
Authors
Coral M. Roig-Silva, Lesley E. Milheim, E. Terrence Slonecker, Siddiq Kalaly, Joseph Chestnut
Flood-frequency comparison from 1995 to 2016 and trends in peak streamflow in Arkansas, water years 1930–2016
In 2016, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers and the Federal Emergency Management Agency, began a study in Arkansas to investigate possible increasing trends in annual peak streamflow data and the possible resulting increase in the annual exceedance probability flood (AEPF) predictions. Temporal trends of peak streamflow were investigated at 15 selected
Authors
Paul A. Ensminger, Brian K. Breaker
Comparing live-capture methods for nutria: single- versus multiple-capture cage traps
Herbivory and burrowing by nutria (Myocastor coypus) cause substantial ecological
and economic damage. Trapping is a common, effective practice for reducing nutria damage;
however, trapping approaches must continually be adapted to keep pace with evolving animal
welfare and ethical issues and to more effectively target pest species of interest. Our objective
was to evaluate the efficacy of 2 nonle
Authors
Trevor R. Sheffels, Jacoby Carter, Mark S. Sytsma, Jimmy D. Taylor
Asian swamp eels in North America linked to the live-food trade and prayer-release rituals
We provide a history of swamp eel (family Synbranchidae) introductions around the globe and report the first confirmed nonindigenous records of Amphipnous cuchia in the wild. The species, native to Asia, is documented from five sites in the USA: the Passaic River, New Jersey (2007), Lake Needwood, Maryland (2014), a stream in Pennsylvania (2015), the Tittabawassee River, Michigan (2017), and Meado
Authors
Leo Nico, Jay V. Kilian, Andrew J. Ropicki, Matthew Harper
Characteristics for the external identification of Black Carp from Grass Carp
Black Carp Mylopharyngodon piceus and Grass Carp Ctenopharyngodon idella are morphologically similar species native to eastern Asia and imported to North America as biological control organisms. Preferred identification methods are coloration and pharyngeal tooth form. Grass Carp possess serrated teeth and Black Carp molariform teeth. Examination of pharyngeal teeth causes extensive damage to a sp
Authors
Patrick Kroboth, Duane Chapman, Robert A. Hrabik, D.A. Neely
An overview of bioaerosol load and health impacts associated with dust storms: A focus on the Middle East
Dust storms are an important environmental problem worldwide. The main sources of dust storms include the Sahara, the Middle East, and central and northeastern Asia. Dust storms originating from these regions can be dispersed across oceans and in some cases globally. They occur throughout the year and vary in frequency and intensity. The biological agents (e.g., fungi, bacteria and viruses) and th
Authors
Zahra Soleimani, Pari Teymouri, Ali Darvishi Boloorani, Alireza Mesdaghinia, Nick Middleton, Dale W. Griffin
Mathematical ecologists describe apparently long-stable dynamics that undergo sudden change to a different regime: Comment on “Long transients in ecology: theory and applications by Andrew Morozov et al.”
No abstract available.
Authors
Donald L. DeAngelis
Report of the River Master of the Delaware River for the period December 1, 2009–November 30, 2010
A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes diversion of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York City, to be made under the supervision and direction of the River Master. The D
Authors
Kendra L. Russell, Darwin Ockerman, Bruce E. Krejmas, Gary N. Paulachok, Robert R. Mason,