Golden alga presence and abundance are inversely related to salinity in a high-salinity river ecosystem, Pecos River, USA
Natascha Israel, Matthew M. VanLandeghem, Shawn Denny, John Ingle, Reynaldo Patino
2014, Harmful Algae (39) 81-91
Prymnesium parvum (golden alga, GA) is a toxigenic harmful alga native to marine ecosystems that has also affected brackish inland waters. The first toxic bloom of GA in the western hemisphere occurred in the Pecos River, one of the saltiest rivers in North America. Environmental factors (water quality) associated with...
Science during crisis: the application of social science during major environmental crises
Gary Machlis, Kris Ludwig
Michael J. Manfredo, Jerry J. Vaske, Andreas Rechkemmer, Esther Duke, editor(s)
2014, Book chapter, Understanding society and natural resources: forging new strands in integration across the social sciences
Historical and contemporary experience suggests that science plays an increasingly critical role in governmental and institutional responses to major environmental crises. Recent examples include major western wildfires (2009), the Deepwater Horizon oil spill (2010), the Fukushima nuclear accident (2011), and Hurricane Sandy (2012). The application of science during such crises has...
Fishes and amphibians as laboratory model organisms for toxicological research
Sandeep Mukhi, Leticia Torres, Bibek Sharma, Madhavi Billam, Reynaldo Patino
Jitendra Kumar Sundaray, Rajeeb Kumar Mohanty, Munilkumar Sukham, Subhendu Kumar Otta, editor(s)
2014, Book chapter, Frontiers in aquaculture
No abstract available....
Feedback of land subsidence on the movement and conjunctive use of water resources
Wolfgang Schmid, Randall T. Hanson, Stanley A. Leake, Joseph D. Hughes, Richard G. Niswonger
2014, Environmental Modelling and Software (62) 253-270
The dependency of surface- or groundwater flows and aquifer hydraulic properties on dewatering-induced layer deformation is not available in the USGS's groundwater model MODFLOW. A new integrated hydrologic model, MODFLOW-OWHM, formulates this dependency by coupling mesh deformation with aquifer transmissivity and storage and by linking land subsidence/uplift with deformation-dependent flows...
The nation’s top 25 construction aggregates producers
Jason C. Willett
2014, Aggregates Manager
U.S. production of construction aggregates in 2012 was 2.18 billion short tons valued at $17.6 billion, free on board (f.o.b.) at plant. In 2012, construction aggregates production remained virtually unchanged from the levels of the last two years because of a very slight increase compared with that of 2011 in...
Magma supply, storage, and transport at shield-stage Hawaiian volcanoes
Michael P. Poland, Asta Miklius, Emily K. Montgomery-Brown
Michael P. Poland, T. Jane Takahashi, Claire M. Landowski, editor(s)
2014, Professional Paper 1801-5
The characteristics of magma supply, storage, and transport are among the most critical parameters governing volcanic activity, yet they remain largely unconstrained because all three processes are hidden beneath the surface. Hawaiian volcanoes, particularly Kīlauea and Mauna Loa, offer excellent prospects for studying subsurface magmatic processes, owing to their accessibility...
40Ar/39Ar geochronology, paleomagnetism, and evolution of the Boring volcanic field, Oregon and Washington, USA
Robert J. Fleck, Jonathan T. Hagstrum, Andrew T. Calvert, Russell C. Evarts, Richard M. Conrey
2014, Geosphere (10) 1283-1314
The 40Ar/39Ar investigations of a large suite of fine-grained basaltic rocks of the Boring volcanic field (BVF), Oregon and Washington (USA), yielded two primary results. (1) Using age control from paleomagnetic polarity, stratigraphy, and available plateau ages, 40Ar/39Ar recoil model ages are defined that provide reliable age results in the absence of...
2014 update of the U.S. national seismic hazard maps
Mark D. Petersen, Morgan P. Moschetti, Peter M. Powers, Charles S. Mueller, Kathleen M. Haller, Arthur D. Frankel, Yuehua Zeng, Sanaz Rezaeian, Stephen C. Harmsen, Oliver S. Boyd, Edward H. Field, R Chen, Kenneth S. Rukstales, Nicolas Luco, Russell L. Wheeler, Anna H. Olsen
2014, Book
We held 8 regional and topical workshops across the U.S. to gather information for these maps. The maps were available to the public for comment during a 60-day period. A Steering Committee (9 experts) was assembled to review the inputs and results and provide additional insights. The maps have been...
A global assessment of the conservation status of the American Oystercatcher Haematopus palliatus
Rob Clay, Arne J. Lesterhuis, Shiloh A. Schulte, Stephen Brown, Debra Reynolds, Theodore R. Simons
2014, International Wader Studies (20) 62-82
The American Oystercatcher Haematopus palliatus is the most widely distributed of the four oystercatcher species in the Western Hemisphere. Its range covers almost the entire Atlantic Coast from northeastern United States to southern Argentina; on the Pacific Coast it is found from northern Mexico to central Chile. This assessment covers the entire range of the...
The dynamics of Hawaiian-style eruptions: A century of study
Margaret T. Mangan, Katharine V. Cashman, Donald A. Swanson
Michael P. Poland, T. Jane Takahashi, Claire M. Landowski, editor(s)
2014, Professional Paper 1801-8
This chapter, prepared in celebration of the Hawaiian Volcano Observatoryʼs centennial, provides a historical lens through which to view modern paradigms of Hawaiian-style eruption dynamics. The models presented here draw heavily from observations, monitoring, and experiments conducted on Kīlauea Volcano, which, as the site of frequent and accessible eruptions, has...
One hundred volatile years of volcanic gas studies at the Hawaiian Volcano Observatory
A.J. Sutton, Tamar Elias
Michael P. Poland, T. Jane Takahashi, Claire M. Landowski, editor(s)
2014, Professional Paper 1801-7
The first volcanic gas studies in Hawai‘i, beginning in 1912, established that volatile emissions from Kīlauea Volcano contained mostly water vapor, in addition to carbon dioxide and sulfur dioxide. This straightforward discovery overturned a popular volatile theory of the day and, in the same action, helped affirm Thomas A. Jaggar,...
Productivity and carbon dioxide exchange of leguminous crops: estimates from flux tower measurements
Tagir G. Gilmanov, John M. Baker, Carl J. Bernacchi, David P. Billesbach, George G. Burba, Saulo Castro, Jiquan Chen, Werner Eugster, Marc L. Fischer, John A. Gamon, Maheteme T. Gebremedhin, Aaron J. Glenn, Timothy J. Griffis, Jerry L. Hatfield, Mark W. Heuer, Daniel M. Howard, Monique Y. Leclerc, Henry W. Loescher, Oliver Marloie, Tilden P. Meyers, Albert Olioso, Rebecca L. Phillips, John H. Prueger, R. Howard Skinner, Andrew E. Suyker, Mario Tenuta, Bruce K. Wylie
2014, Agronomy Journal (106) 545-559
Net CO2 exchange data of legume crops at 17 flux tower sites in North America and three sites in Europe representing 29 site-years of measurements were partitioned into gross photosynthesis and ecosystem respiration by using the nonrectangular hyperbolic light-response function method. The analyses produced net CO2 exchange data and new ecosystem-scale ecophysiological...
Satellite tracking of the migration of Whooper Swans Cygnus cygnus wintering in Japan
Tetsuo Shimada, Noriyuki M. Yamaguchi, N. Hijikata, Emiko N. Hiraoka, Jerry W. Hupp, Paul L. Flint, Ken-ichi Tokita, Go Fujita, Kiyoshi Uchida, F. Sato, Masayuki Kurechi, John M. Pearce, Andrew M. Ramey, Hiroyoshi Higuchi
2014, Ornithological Science (13) 67-75
We satellite-tracked Whooper Swans Cygnus cygnus wintering in northern Japan to document their migration routes and timing, and to identify breeding areas. From 47 swans that we marked at Lake Izunuma-Uchinuma, Miyagi Prefecture, northeast Honshu, and at Lake Kussharo, east Hokkaido, we observed 57 spring and 33 autumn migrations from...
Geomorphic evidence for enhanced Pliocene-Quaternary faulting in the northwestern Basin and Range
Magdalena A Ellis, Barnes Jason B, Joseph P. Colgan
2014, Lithosphere (7) 59-72
Mountains in the U.S. Basin and Range Province are similar in form, yet they have different histories of deformation and uplift. Unfortunately, chronicling fault slip with techniques like thermochronology and geodetics can still leave sizable, yet potentially important gaps at Pliocene–Quaternary (∼105–106 yr) time scales. Here, we combine existing geochronology...
Effects of low and high salinity regimes on seasonal gametogenesis of the ribbed mussel Geukensia granosissima in coastal Louisiana, USA
Aaron Honig, Megan K. LaPeyre, John Supan
2014, Sexuality and Early Development in Aquatic Organisms (1) 75-82
Benthic intertidal bivalves play an essential role in estuarine ecosystems by contributing to habitat provision, water filtration, and host vegetation productivity. As such, ecosystem level changes that impact population distributions and persistence of local bivalve populations may have large ecosystem level consequences, making it important to better understand the population...
Dietary breadth of grizzly bears in the Greater Yellowstone Ecosystem
Kerry A. Gunther, Rebecca Shoemaker, Kevin L. Frey, Mark A. Haroldson, Steven L. Cain, Frank T. van Manen, Jennifer K. Fortin
2014, Ursus (25) 60-72
Grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem (GYE) are opportunistic omnivores that eat a great diversity of plant and animal species. Changes in climate may affect regional vegetation, hydrology, insects, and fire regimes, likely influencing the abundance, range, and elevational distribution of the plants and animals consumed by...
The role of protected area wetlands in waterfowl habitat conservation: implications for protected area network design
William S. Beatty, Dylan C. Kesler, Elisabeth B. Webb, Andrew H. Raedeke, Luke W. Naylor, Dale D. Humburg
2014, Biological Conservation (176) 144-152
The principal goal of protected area networks is biodiversity preservation, but efficacy of such networks is directly linked to animal movement within and outside area boundaries. We examined wetland selection patterns of mallards (Anas platyrhynchos) during non-breeding periods from 2010 to 2012 to evaluate the utility of protected areas to...
Seasonal shifts in the diet of the big brown bat (Eptesicus fuscus), Fort Collins, Colorado
Ernest W. Valdez, Thomas J. O’Shea
2014, Southwestern Naturalist (59) 511-516
Recent analyses suggest that the big brown bat (Eptesicus fuscus) may be less of a beetle specialist (Coleoptera) in the western United States than previously thought, and that its diet might also vary with temperature. We tested the hypothesis that big brown bats might opportunistically prey on moths by analyzing...
Quantifying understorey vegetation in the US Lake States: a proposed framework to inform regional forest carbon stocks
Matthew B. Russell, Anthony W. D’Amato, Bethany K. Schulz, Christopher W. Woodall, Grant M. Domke, John B. Bradford
2014, Forestry (87) 629-638
The contribution of understorey vegetation (UVEG) to forest ecosystem biomass and carbon (C) across diverse forest types has, to date, eluded quantification at regional and national scales. Efforts to quantify UVEG C have been limited to field-intensive studies or broad-scale modelling approaches lacking field measurements. Although large-scale inventories of UVEG...
Landscape effects on mallard habitat selection at multiple spatial scales during the non-breeding period
William S. Beatty, Elisabeth B. Webb, Dylan C. Kesler, Andrew H. Raedeke, Luke W. Naylor, Dale D. Humburg
2014, Landscape Ecology (29) 989-1000
Previous studies that evaluated effects of landscape-scale habitat heterogeneity on migratory waterbird distributions were spatially limited and temporally restricted to one major life-history phase. However, effects of landscape-scale habitat heterogeneity on long-distance migratory waterbirds can be studied across the annual cycle using new technologies, including global positioning system satellite transmitters....
Effects of satellite transmitters on captive and wild mallards
Dylan C. Kesler, Andrew H. Raedeke, Jennifer R. Foggia, William S. Beatty, Elisabeth B. Webb, Dale D. Humburg, Luke W. Naylor
2014, Wildlife Society Bulletin (38) 557-565
Satellite telemetry has become a leading method for studying large-scale movements and survival in birds, yet few have addressed potential effects of the larger and heavier tracking equipment on study subjects. We simultaneously evaluated effects of satellite telemetry equipment on captive and wild mallards (Anas platyrhynchos) to assess impacts on...
Natural hazards and risk reduction in Hawaii
James P. Kauahikaua, Robert I. Tilling
Michael P. Poland, T. Jane Takahashi, Claire M. Landowski, editor(s)
2014, Professional Paper 1801-10
Significant progress has been made over the past century in understanding, characterizing, and communicating the societal risks posed by volcanic, earthquake, and tsunami hazards in Hawai‘i. The work of the Hawaiian Volcano Observatory (HVO), with a century-long commitment to serving the public with credible hazards information, contributed substantially to this...
Mineral resource of the month: Strontium
Joyce A. Ober
2014, Earth (January 2015)
Strontium occurs commonly in nature, ranking as the 15th most abundant chemical element on Earth. Only two minerals contain sufficient strontium, however, to be used commercially to produce strontium compounds: Strontianite (strontium carbonate) has a higher strontium content, but celestite (strontium sulfate) is by far the most abundant strontium mineral....
Key recovery factors for the August 24, 2014, South Napa Earthquake
Kenneth W. Hudnut, Thomas M. Brocher, Carol S. Prentice, John Boatwright, Benjamin A. Brooks, Brad T. Aagaard, J. Luke Blair, Jon Peter B. Fletcher, Jemile Erdem, Charles W. Wicks Jr., Jessica R. Murray, Fred F. Pollitz, John O. Langbein, Jerry L. Svarc, David P. Schwartz, Daniel J. Ponti, Suzanne Hecker, Stephen B. DeLong, Carla M. Rosa, Brenda Jones, Rynn M. Lamb, Anne M. Rosinski, Timothy P. McCrink, Timothy E. Dawson, Gordon G. Seitz, Craig Glennie, Darren Hauser, Todd Ericksen, Dan Mardock, Don F. Hoirup, Jonathan D. Bray, Ron S. Rubin
2014, Open-File Report 2014-1249
Through discussions between the Federal Emergency Management Agency (FEMA) and the U.S. Geological Survey (USGS) following the South Napa earthquake, it was determined that several key decision points would be faced by FEMA for which additional information should be sought and provided by USGS and its partners. This report addresses...
Aquatic invasive species: Lessons from cancer research
Adam J. Sepulveda, Andrew Ray, Robert K. Al-Chokhachy, Clint C. Muhlfeld, Robert E. Gresswell, Jackson A. Gross, Jeffrey L. Kershner
2014, American Scientist (100) 234-242
Aquatic invasive species are disrupting ecosystems with increasing frequency. Successful control of these invasions has been rare: Biologists and managers have few tools for fighting aquatic invaders. In contrast, the medical community has long worked to develop tools for preventing and fighting cancer. Its successes are marked by a coordinated...
