Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10382
Preliminary analysis of suspended sediment rating curves for the Kalamazoo River and its tributaries from Marshall to Kalamazoo, Michigan Preliminary analysis of suspended sediment rating curves for the Kalamazoo River and its tributaries from Marshall to Kalamazoo, Michigan
Suspended sediment concentration (SSC) rating curves for the Kalamazoo River and its tributaries from Marshall to Kalamazoo, Michigan, U.S.A., were developed based on measured data. The slopes of the atsite SSC rating curves were of two general types: either increasing or decreasing with increasing discharges. By examining the basin characteristics and flow patterns, streams with...
Authors
David T. Soong, Christopher J. Hoard, Faith A. Fitzpatrick, Ronald B. Zelt
Towards sustainable management of huntable migratory waterbirds in Europe Towards sustainable management of huntable migratory waterbirds in Europe
The EU Birds Directive and the African-Eurasian Waterbird Agreement provide an adequate legal framework for sustainable management of migratory waterbird populations. The main shortcoming of both instruments is that it leaves harvest decisions of a shared resource to individual Member States and Contracting Parties without providing a shared information base and mechanism to assess the...
Authors
Jesper Madsen, Matthieu Guillemain, Szabolcs Nagy, Pierre Defos du Rau, Jean-Yves Mondain-Monval, Cy Griffin, James Henty Williams, Nils Bunnefeld, Alexandre Czajkowski, Richard Hearn, Andreas Grauer, Mikko Alhainen, Angus Middleton, Fred A. Johnson
Observations on the migration of bacillus spores outside a contaminated facility during a decontamination efficacy study Observations on the migration of bacillus spores outside a contaminated facility during a decontamination efficacy study
The potential for an intentional wide-area or indoor release of Bacillus anthracis spores remains a concern, but the fate and transport of B. anthracis spores in indoor and outdoor environments are not well understood. Some studies have examined the possibility of spore transport within ventilation systems and in buildings and transport into a building following an outdoor release...
Authors
Erin E. Silvestri, Sarah Perkins, Robert Lordo, William Kovacik, Tonya L. Nichols, Charlena Yoder Bowling, Dale W. Griffin, Frank W. Schaefer
A spatial individual-based model predicting a great impact of copious sugar sources and resting sites on survival of Anopheles gambiae and malaria parasite transmission A spatial individual-based model predicting a great impact of copious sugar sources and resting sites on survival of Anopheles gambiae and malaria parasite transmission
Background Agent-based modelling (ABM) has been used to simulate mosquito life cycles and to evaluate vector control applications. However, most models lack sugar-feeding and resting behaviours or are based on mathematical equations lacking individual level randomness and spatial components of mosquito life. Here, a spatial individual-based model (IBM) incorporating sugar-feeding and...
Authors
Lin Zhu, Whitney A. Qualls, John M Marshall, Kris L. Arheart, Donald L. DeAngelis, John W. McManus, Sekou F. Traore, Seydou Doumbia, Yosef Schlein, Gunter C. Muller, John C. Beier
Climate changes, shifting ranges Climate changes, shifting ranges
Even a fleeting mention of the Everglades conjures colorful images of alligators, panthers, flamingos, and manatees. Over the centuries, this familiar cast of characters has become synonymous with life in south Florida. But the workings of a changing climate have the potential to significantly alter the menagerie of animals that call this area home. Global projections suggest south...
Authors
Stephanie S. Romanach
Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service
No abstract available.
Authors
Michael Kosempa, Julien Martin, Fred A. Johnson, Ron Mezich, Brad Stith, Charles J. Deutsch, Michelle Masi, Holly H. Edwards
Crocodylus acutus (American Crocodile). Long distance juvenile movement Crocodylus acutus (American Crocodile). Long distance juvenile movement
Crocodylus acutus (American Crocodile) is the most widely distributed New World crocodilian species with its range extending from Peru in the south to the southern tip of peninsular Florida in the north. Crocodylus acutus occupies primarily coastal brackish water habitat, however it also occurs in freshwater to hypersaline habitats (Thorbjarnarson 2010. In Crocodiles. Status Survey and
Authors
Rafael Crespo, Jeffrey S. Beauchamp, Frank Mazzotti, Michael S. Cherkiss
Detecting sea-level hazards: Simple regression-based methods for calculating the acceleration of sea level Detecting sea-level hazards: Simple regression-based methods for calculating the acceleration of sea level
This report documents the development of statistical tools used to quantify the hazard presented by the response of sea-level elevation to natural or anthropogenic changes in climate and ocean circulation. A hazard is a physical process (or processes) that, when combined with vulnerability (or susceptibility to the hazard), results in risk. This study presents the development and...
Authors
Kara S. Doran, Peter A. Howd, Sallenger
Do laboratory species protect endangered species? Interspecies variation in responses to 17β-estradiol, a model endocrine active compound Do laboratory species protect endangered species? Interspecies variation in responses to 17β-estradiol, a model endocrine active compound
Although the effects of estrogens on model laboratory species are well documented, their utility as surrogates for other species, including those listed as endangered, are less clear. Traditionally, conservation policies are evaluated based on model organism responses but are intended to protect all species in an environment. We tested the hypothesis that the endangered Rio Grande...
Authors
Zachary G. Jorgenson, Kevin J. Buhl, Stephen E. Bartell, Heiko L. Schoenfuss
Migrations and swimming capabilities of endangered pallid sturgeon (Scaphirhynchus albus) to guide passage designs in the fragmented Yellowstone River Migrations and swimming capabilities of endangered pallid sturgeon (Scaphirhynchus albus) to guide passage designs in the fragmented Yellowstone River
Fragmentation of the Yellowstone River is hypothesized to preclude recruitment of endangered Scaphirhynchus albus (pallid sturgeon) by impeding upstream spawning migrations and access to upstream spawning areas, thereby limiting the length of free-flowing river required for survival of early life stages. Building on this hypothesis, the reach of the Yellowstone River affected by Intake...
Authors
P. J. Braaten, Caroline M. Elliott, Jason C. Rhoten, D. B. Fuller, Brandon J. McElroy
Hydrodynamic modeling to evaluate the influence of constructed side-channel habitat on larval drift of pallid strugeon in the Lower Missouri River Hydrodynamic modeling to evaluate the influence of constructed side-channel habitat on larval drift of pallid strugeon in the Lower Missouri River
Larval drift is a critical phase of ontogeny for many species of lotic fishes. Downstream advection and dispersion of drifting larvae or eggs is controlled by the complex interaction of flow regime, channel planform, local channel morphology, and the resulting hydraulic gradients. In many regulated rivers, channel engineering and perturbations to the flow regime may disrupt natural...
Authors
Susannah O. Erwin, Robert B. Jacobson
Mekong River fish ecology information gap assessment and capacity building in Laos Mekong River fish ecology information gap assessment and capacity building in Laos
No abstract available
Authors
Stephen J. Walsh, Douglas C. Peterson, Kulthida A Techasarin