The impact of small irrigation diversion dams on the recent migration rates of steelhead and redband trout (Oncorhynchus mykiss)
Dana E. Weigel, Patrick J. Connolly, Madison S. Powell
2013, Conservation Genetics (14) 1255-1267
Barriers to migration are numerous in stream environments and can occur from anthropogenic activities (such as dams and culverts) or natural processes (such as log jams or dams constructed by beaver (Castor canadensis)). Identification of barriers can be difficult when obstructions are temporary or incomplete providing passage periodically. We...
National assessment of shoreline change: historical shoreline change along the Pacific Northwest coast
Peter Ruggerio, Meredith G. Kratzmann, Emily A. Himmelstoss, David Reid, Jonathan Allan, George Kaminsky
2013, Open-File Report 2012-1007
Beach erosion is a chronic problem along most open ocean shores of the United States. As coastal populations continue to increase and infrastructure is threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There is also a need for...
Sediment transport and deposition in the lower Missouri River during the 2011 flood
Jason S. Alexander, Robert B. Jacobson, David L. Rus
2013, Professional Paper 1798-F
Floodwater in the Missouri River in 2011 originated in upper-basin regions and tributaries, and then travelled through a series of large flood-control reservoirs, setting records for total runoff volume entering all six Missouri River main-stem reservoirs. The flooding lasted as long as 3 months. The U.S Geological Survey (USGS) examined...
Geomorphic and vegetation processes of the Willamette River floodplain, Oregon: current understanding and unanswered science questions
J. Rose Wallick, Krista L. Jones, Jim E. O'Connor, Mackenzie K. Keith, David Hulse, Stanley V. Gregory
2013, Open-File Report 2013-1246
This report summarizes the current understanding of floodplain processes and landforms for the Willamette River and its major tributaries. The area of focus encompasses the main stem Willamette River above Newberg and the portions of the Coast Fork Willamette, Middle Fork Willamette, McKenzie, and North, South and main stem Santiam...
GWM-VI: groundwater management with parallel processing for multiple MODFLOW versions
Edward R. Banta, David P. Ahlfeld
2013, Techniques and Methods 6-A48
Groundwater Management–Version Independent (GWM–VI) is a new version of the Groundwater Management Process of MODFLOW. The Groundwater Management Process couples groundwater-flow simulation with a capability to optimize stresses on the simulated aquifer based on an objective function and constraints imposed on stresses and aquifer state. GWM–VI extends prior versions of...
Loess origin, transport, and deposition over the past 10,000 years, Wrangell-St. Elias National Park, Alaska
Daniel R. Muhs, James R. Budahn, John P. McGeehin, E. Arthur Bettis III, Gary L. Skipp, James B. Paces, Elisabeth A. Wheeler
2013, Aeolian Research (11) 85-99
Contemporary glaciogenic dust has not received much attention, because most research has been on glaciogenic dust of the last glacial period or non-glaciogenic dust of the present interglacial period. Nevertheless, dust from modern glaciogenic sources may be important for Fe inputs to primary producers in the ocean. Adjacent to the...
Integrated carbon budget models for the Everglades terrestrial-coastal-oceanic gradient: Current status and needs for inter-site comparisons
Tiffany G. Troxler, Evelyn Gaiser, Jordan Barr, Jose D. Fuentes, Rudolf Jaffe, Daniel L. Childers, Ligia Collado-Vides, Victor H. Rivera-Monroy, Edward Castañeda-Moya, William Anderson, Randy Chambers, Meilian Chen, Carlos Coronado-Molina, Stephen E. Davis, Victor C. Engel, Carl Fitz, James Fourqurean, Tom Frankovich, John Kominoski, Chris Madden, Sparkle L. Malone, Steve F. Oberbauer, Paulo Olivas, Jennifer Richards, Colin Saunders, Jessica Schedlbauer, Leonard J. Scinto, Fred Sklar, Thomas J. Smith III, Joseph M. Smoak, Gregory Starr, Robert Twilley, Kevin Whelan
2013, Oceanography (26) 98-107
Recent studies suggest that coastal ecosystems can bury significantly more C than tropical forests, indicating that continued coastal development and exposure to sea level rise and storms will have global biogeochemical consequences. The Florida Coastal Everglades Long Term Ecological Research (FCE LTER) site provides an excellent subtropical system for examining...
Flood-inundation maps for the DuPage River from Plainfield to Shorewood, Illinois, 2013
Elizabeth A. Murphy, Jennifer B. Sharpe
2013, Scientific Investigations Map 3275
Digital flood-inundation maps for a 15.5-mi reach of the DuPage River from Plainfield to Shorewood, Illinois, were created by the U.S. Geological Survey (USGS) in cooperation with the Will County Stormwater Management Planning Committee. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site...
Evidence for high salinity of Early Cretaceous sea water from the Chesapeake Bay crater
Ward E. Sanford, Michael W. Doughten, Tyler B. Coplen, Andrew G. Hunt, Thomas D. Bullen
2013, Nature (503) 252-256
High salinity groundwater more than 1000 metres deep in the Atlantic Coastal Plain of the United States has been documented in several locations1,2, most recently within the 35 million-year-old Chesapeake Bay impact crater3,4,5. Suggestions for the origin of increased salinity in the crater have included evaporite dissolution6, osmosis6, and evaporation...
Large dams and alluvial rivers in the Anthropocene: The impacts of the Garrison and Oahe Dams on the Upper Missouri River
Katherine Skalak, Adam J. Benthem, Edward R. Schenk, Cliff R. Hupp, Joel M. Galloway, Rochelle A. Nustad, Gregg J. Wiche
2013, Anthropocene (2) 51-64
The Missouri River has had a long history of anthropogenic modification with considerable impacts on river and riparian ecology, form, and function. During the 20th century, several large dam-building efforts in the basin served the needs for irrigation, flood control, navigation, and the generation of hydroelectric power. The managed flow...
Intraseasonal variation in survival and probable causes of mortality in greater sage-grouse Centrocercus urophasianus
Erik J. Blomberg, Daniel Gibson, James S. Sedinger, Michael L. Casazza, Peter S. Coates
2013, Wildlife Biology (19) 347-357
The mortality process is a key component of avian population dynamics, and understanding factors that affect mortality is central to grouse conservation. Populations of greater sage-grouse Centrocercus urophasianus have declined across their range in western North America. We studied cause-specific mortality of radio-marked sage-grouse in Eureka County, Nevada, USA, during...
Rodent-Mediated Interactions Among Seed Species of Differing Quality in a Shrubsteppe Ecosystem
Karen H. Beard, Craig A. Faulhaber, Frank P. Howe, Thomas C. Edwards Jr.
2013, Western North American Naturalist (73) 426-441
Interactions among seeds, mediated by granivorous rodents, are likely to play a strong role in shrubsteppe ecosystem restoration. Past studies typically consider only pairwise interactions between preferred and less preferred seed species, whereas rangeland seedings are likely to contain more than 2 seed species, potentially leading to complex interactions. We...
How to predict community responses to perturbations in the face of imperfect knowledge and network complexity
Helge Aufderheide, Lars Rudolf, Thilo Gross, Kevin D. Lafferty
2013, Proceedings of the Royal Society B: Biological Sciences (280)
Recent attempts to predict the response of large food webs to perturbations have revealed that in larger systems increasingly precise information on the elements of the system is required. Thus, the effort needed for good predictions grows quickly with the system's complexity. Here, we show that not all elements need...
Urban runoff (URO) process for MODFLOW 2005: simulation of sub-grid scale urban hydrologic processes in Broward County, FL
Jeremy D. Decker, J.D. Hughes
2013, Book, MODFLOW and More 2013: Translating Science into Practice: Conference Proceedings
Climate change and sea-level rise could cause substantial changes in urban runoff and flooding in low-lying coast landscapes. A major challenge for local government officials and decision makers is to translate the potential global effects of climate change into actionable and cost-effective adaptation and mitigation strategies at county and municipal...
Inferring tidal wetland stability from channel sediment fluxes: observations and a conceptual model
Neil K. Ganju, Nicholas J. Nidzieko, Matthew L. Kirwan
2013, Journal of Geophysical Research F: Earth Surface (118) 2045-2058
Anthropogenic and climatic forces have modified the geomorphology of tidal wetlands over a range of timescales. Changes in land use, sediment supply, river flow, storminess, and sea level alter the layout of tidal channels, intertidal flats, and marsh plains; these elements define wetland complexes. Diagnostically, measurements of net sediment fluxes...
Predicting the effects of proposed Mississippi River diversions on oyster habitat quality; application of an oyster habitat suitability index model
Thomas M. Soniat, Craig P. Conzelmann, Jason D. Byrd, Dustin P. Roszell, Joshua L. Bridevaux, Kevin J. Suir, Susan B. Colley
2013, Journal of Shellfish Research (32) 629-638
In an attempt to decelerate the rate of coastal erosion and wetland loss, and protect human communities, the state of Louisiana developed its Comprehensive Master Plan for a Sustainable Coast. The master plan proposes a combination of restoration efforts including shoreline protection, marsh creation, sediment diversions, and ridge, barrier island,...
Seismic Station Installation Orientation Errors at ANSS and IRIS/USGS Stations
Adam T. Ringler, Charles R. Hutt, K. Persfield, Lind S. Gee
2013, Seismological Research Letters (84) 926-931
Many seismological studies depend on the published orientations of sensitive axes of seismic instruments relative to north (e.g., Li et al., 2011). For example, studies of the anisotropic structure of the Earth’s mantle through SKS‐splitting measurements (Long et al., 2009), constraints on core–mantle electromagnetic coupling from torsional normal‐mode measurements (Dumberry...
Detecting short-term responses to weekend recreation activity: desert bighorn sheep avoidance of hiking trails
Kathleen M. Longshore, Chris Lowrey, Daniel B. Thompson
2013, Wildlife Society Bulletin (37) 698-706
To study potential effects of recreation activity on habitat use of desert bighorn sheep (Ovis canadensis nelsoni), we placed Global Positioning System collars on 10 female bighorn sheep within the Wonderland of Rocks–Queen Mountain region of Joshua Tree National Park (JOTR), California, USA, from 2002 to 2004. Recreation use was...
Applying the Land Use Portfolio Model with Hazus to analyse risk from natural hazard events
Laura B. Dinitz, Richard A. Taketa
2013, International Journal of Risk Assessment and Management (17) 69-88
This paper describes and demonstrates the integration of two geospatial decision-support systems for natural-hazard risk assessment and management. Hazus is a risk-assessment tool developed by the Federal Emergency Management Agency to identify risks and estimate the severity of risk from natural hazards. The Land Use Portfolio Model (LUPM) is a...
Northern bobwhite response to habitat restoration in eastern oklahoma
Andrew D. Crosby, R.D. Elmore, David M. Leslie Jr.
2013, Wildlife Society Bulletin (37) 733-740
In response to the decline of northern bobwhite (Colinus virginianus; hereafter, bobwhite) in eastern Oklahoma, USA, a cost-share incentive program for private landowners was initiated to restore early successional habitat. Our objectives were to determine whether the program had an effect on bobwhite occupancy in the restoration areas and evaluate...
Abundance and density of lesser prairie-chickens and leks in Texas
Jennifer M. Timmer, M.J. Butler, Warren Ballard, Clint W. Boal, Heather A. Whitlaw
2013, Wildlife Society Bulletin (37) 741-749
Lesser prairie-chickens (LEPCs; Tympanuchus pallidicinctus) have experienced population declines due to both direct and indirect habitat loss, including conversion of native rangeland to cropland and disturbance from energy development. Our objectives were to 1) determine the current density of LEPC leks and LEPCs within the Texas (USA) occupied range, including...
Long-range hazard assessment of volcanic ash dispersal for a Plinian eruptive scenario at Popocatépetl volcano (Mexico): implications for civil aviation safety
Rosanna Bonasia, Chirara Scaini, Lucia Capra, Manuel Nathenson, Claus Siebe, Lilia Arana-Salinas, Arnau Folch
2013, Bulletin of Volcanology (76)
Popocatépetl is one of Mexico’s most active volcanoes threatening a densely populated area that includes Mexico City with more than 20 million inhabitants. The destructive potential of this volcano is demonstrated by its Late Pleistocene–Holocene eruptive activity, which has been characterized by recurrent Plinian eruptions of large magnitude, the last...
Insights into the latent multinomial model through mark-resight data on female grizzly bears with cubs-of-the-year
Megan D. Higgs, William A. Link, Gary C. White, Mark A. Haroldson, Daniel D. Bjornlie
2013, Journal of Agricultural, Biological, and Environmental Statistics (18) 556-577
Mark-resight designs for estimation of population abundance are common and attractive to researchers. However, inference from such designs is very limited when faced with sparse data, either from a low number of marked animals, a low probability of detection, or both. In the Greater Yellowstone Ecosystem, yearly mark-resight data are...
Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: example from Long Valley, CA, USA
Shaun T. Brown, B. Mack Kennedy, Donald J. DePaolo, Shaul Hurwitz, William C. Evans
2013, Geochimica et Cosmochimica Acta (122) 209-225
We present chemical and isotopic data for fluids, minerals and rocks from the Long Valley meteoric-hydrothermal system. The samples encompass the presumed hydrothermal upwelling zone in the west moat of the caldera, the Casa Diablo geothermal field, and a series of wells defining a nearly linear, ∼16 km long, west-to-east...
Surprising abundance of Gallionella-related iron oxidizers in creek sediments at pH 4.4 or at high heavy metal concentrations
Maria Fabisch, Felix Beulig, Denise M. Akob, Kirsten Küsel
2013, Frontiers in Microbiology (4)
We identified and quantified abundant iron-oxidizing bacteria (FeOB) at three iron-rich, metal-contaminated creek sites with increasing sediment pH from extremely acidic (R1, pH 2.7), to moderately acidic (R2, pH 4.4), to slightly acidic (R3, pH 6.3) in a former uranium-mining district. The geochemical parameters showed little variations over the 1.5...
