Survival of female mallards along the Vermont-Quebec border region
Jerry R. Longcore, Daniel G. McAuley, Dennis M. Heisey, Christine M. Bunck, David A. Clugston
2016, Journal of Wildlife Management (80) 355-367
Understanding effects of location and timing of harvest seasons on mortality of ducks and geese from hunting is important in forming regulations that sustain viable waterfowl populations throughout their range. During 1990 and 1991 we alternately marked 80 hatching year (HY), female mallards along the Vermont–Quebec border; half with radio-transmitters...
Prospecting for marine gas hydrate resources
Ray Boswell, Craig Shipp, Thomas Reichel, Dianna Shelander, Tetsuo Saeki, Matthew Frye, William Shedd, Timothy S. Collett, Daniel R. McConnell
2016, Interpretation (4) SA13-SA24
As gas hydrate energy assessment matures worldwide, emphasis has evolved away from confirmation of the mere presence of gas hydrate to the more complex issue of prospecting for those specific accumulations that are viable resource targets. Gas hydrate exploration now integrates the unique pressure and temperature preconditions for gas hydrate...
Characterization of gas hydrate distribution using conventional 3D seismic data in the Pearl River Mouth Basin, South China Sea
Xiujuan Wang, Jin Qiang, Timothy S. Collett, Hesheng Shi, Shengxiong Yang, Chengzhi Yan, Yuanping Li, Zhenzhen Wang, Duanxin Chen
2016, Interpretation (4) SA25-SA37
A new 3D seismic reflection data volume acquired in 2012 has allowed for the detailed mapping and characterization of gas hydrate distribution in the Pearl River Mouth Basin in the South China Sea. Previous studies of core and logging data showed that gas hydrate occurrence at high concentrations is controlled...
Corrigendum to “Widespread occurrence of (per)chlorate in the Solar System” [Earth Planet. Sci. Lett. 430 (2015) 470–476]
W. Andrew Jackson, Alfonso F. Davila, Derek W. G. Sears, John D. Coates, Christopher P. McKay, Maeghan Brundrett, Nubia Estrada, J.K. Bohlke
2016, Earth and Planetary Science Letters (436) 142-143
The authors regret that two sets of data (Atacama (Rao et al., 2010) and Mars Meteorite Range (Kounaves et al., 2014)) in Fig. 2 of our article were plotted in the wrong units. The correction does not change the relationship between ClO<mrow...
Impacts of climate change on land-use and wetland productivity in the Prairie Pothole Region of North America
Benjamin S. Rashford, Richard M. Adams, Jun Wu, Richard A. Voldseth, Glenn R. Guntenspergen, Brett Werner, W. Carter Johnson
2016, Regional Environmental Change (16) 515-526
Wetland productivity in the Prairie Pothole Region (PPR) of North America is closely linked to climate. A warmer and drier climate, as predicted, will negatively affect the productivity of PPR wetlands and the services they provide. The effect of climate change on wetland productivity, however, will not only depend on...
Greenhouse gas fluxes from salt marshes exposed to chronic nutrient enrichment
Gail L. Chmura, Lisa Kellman, Lee van Ardenne, Glenn R. Guntenspergen
2016, PLoS ONE (11)
We assessed the impact of nutrient additions on greenhouse gas fluxes using dark static chambers in a microtidal and a macrotidal marsh along the coast of New Brunswick, Canada approximately monthly over a year. Both were experimentally fertilized for six years with varying levels of N and P. For unfertilized,...
Evidence for nonuniform permafrost degradation after fire in boreal landscapes
Burke J. Minsley, Neal J. Pastick, Bruce K. Wylie, Dana R.N. Brown, M. Andy Kass
2016, Journal of Geophysical Research F: Earth Surface (121) 320-335
Fire can be a significant driver of permafrost change in boreal landscapes, altering the availability of soil carbon and nutrients that have important implications for future climate and ecological succession. However, not all landscapes are equally susceptible to fire-induced change. As fire frequency is expected to increase in the high...
Erosional and depositional history of the Atlantic passive margin as recorded in detrital zircon fission-track ages and lithic detritus in Atlantic Coastal plain sediments
C. W. Naeser, N.D. Naeser, Lucy E. Edwards, Robert E. Weems, C. Scott Southworth, Wayne L. Newell
2016, American Journal of Science (316) 110-168
Comparison of fission-track (FT) ages of detrital zircons recovered from Atlantic Coastal Plain sediments to FT ages of zircons from bedrock in source terranes in the Appalachians provides a key to understanding the provenance of the sediments and, in turn, the erosional and depositional history of the Atlantic passive...
Book review: Mineral resource estimation
Mark J. Mihalasky
2016, Economic Geology (111) 272-274
Mineral Resource Estimation is about estimating mineral resources at the scale of an ore deposit and is not to be mistaken with mineral resource assessment, which is undertaken at a significantly broader scale, even if similar data and geospatial/geostatistical methods are used. The book describes geological, statistical, and geostatistical tools...
Mapping extent and change in surface mines within the United States for 2001 to 2006
Christopher E. Soulard, William Acevedo, Stephen V. Stehman, Owen P. Parker
2016, Land Degradation and Development (27) 248-257
A complete, spatially explicit dataset illustrating the 21st century mining footprint for the conterminous United States does not exist. To address this need, we developed a semi-automated procedure to map the country's mining footprint (30-m pixel) and establish a baseline to monitor changes in mine extent over time. The process...
Quantifying pollen-vegetation relationships to reconstruct ancient forests using 19th-century forest composition and pollen data
Andria Dawson, Christopher J. Paciorek, Jason S. McLachlan, Simon Goring, John W. Williams, Stephen T. Jackson
2016, Quaternary Science Reviews (137) 156-175
Mitigation of climate change and adaptation to its effects relies partly on how effectively land-atmosphere interactions can be quantified. Quantifying composition of past forest ecosystems can help understand processes governing forest dynamics in a changing world. Fossil pollen data provide information about past forest composition,...
Evaluating geothermal and hydrogeologic controls on regional groundwater temperature distribution
Erick R. Burns, Steven E. Ingebritsen, Michael Manga, Colin F. Williams
2016, Water Resources Research (52) 1328-1344
A one-dimensional (1-D) analytic solution is developed for heat transport through an aquifer system where the vertical temperature profile in the aquifer is nearly uniform. The general anisotropic form of the viscous heat generation term is developed for use in groundwater flow simulations. The 1-D solution is extended to more...
Migratory corridors of adult female Kemp’s ridley turtles in the Gulf of Mexico
Donna J. Shaver, Kristen M. Hart, Ikuko Fujisaki, Cynthia Rubio, Autumn R. Sartain-Iverson, Jaime Pena, Daniel Gomez Gamez, Raul de Jesus Gonzales Diaz Miron, Patrick M. Burchfield, Hector J. Martinez, Jaime Ortiz
2016, Biological Conservation (194) 158-167
For many marine species, locations of migratory pathways are not well defined. We used satellite telemetry and switching state-space modeling (SSM) to define the migratory corridor used by Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. The turtles were tagged after nesting at Padre Island National Seashore, Texas,...
Lithospheric rheology constrained from twenty-five years of postseismic deformation following the 1989 Mw 6.9 Loma Prieta earthquake
Mong-Han Huang, Roland Burgmann, Frederick Pollitz
2016, Earth and Planetary Science Letters (435) 147-158
The October 17, 1989 Mw 6.9 Loma Prieta earthquake provides the first opportunity of probing the crustal and upper mantle rheology in the San Francisco Bay Area since the 1906 Mw 7.9 San Francisco earthquake. Here we use geodetic observations including GPS and InSAR to characterize...
Winter distribution and use of high elevation caves as foraging sites by the endangered Hawaiian hoary bat, Lasiurus cinereus semotus
Frank Bonaccorso, Kristina Montoya-Aiona, Corinna A. Pinzari, Christopher M. Todd
2016, Technical Report HCSU-068
We examine altitudinal movements involving unusual use of caves by Hawaiian hoary bats, Lasiurus cinereus semotus, during winter and spring in the Mauna Loa Forest Reserve (MLFR), Hawai‘i Island. Acoustic detection of hoary bat vocalizations, were recorded with regularity outside 13 lava tube cave entrances situated between 2,200 to 3,600...
Effects of Climate and land use on diversity, prevalence, and seasonal transmission of avian hematozoa in American Samoa
Carter T. Atkinson, Ruth B. Utuzurrum, Joshua O. Seamon, Mark A. Schmaedick, Dennis A. LaPointe, Chloe Apelgren, Ariel N. Egan, William Watcher-Weatherwax
2016, Technical Report HCSU-072
The indigenous forest birds of American Samoa are increasingly threatened by changing patterns of rainfall and temperature that are associated with climate change as well as environmental stressors associated with agricultural and urban development, invasive species, and new introductions of avian diseases and disease vectors. Long term changes in their...
Geochemistry of formation waters from the Wolfcamp and “Cline” shales: Insights into brine origin, reservoir connectivity, and fluid flow in the Permian Basin, USA
Mark A. Engle, Francisco R. Reyes, Matthew S. Varonka, William H. Orem, Ma Lin, Adam J. Ianno, Tiffani M. Westphal, Pei Xu, Kenneth C. Carroll
2016, Chemical Geology (425) 76-92
Despite being one of the most important oil producing provinces in the United States, information on basinal hydrogeology and fluid flow in the Permian Basin of Texas and New Mexico is lacking. The source and geochemistry of brines from the basin were investigated (Ordovician- to...
Evaluating detection and monitoring tools for incipient and relictual non-native ungulate populations
Seth W. Judge, Steve C. Hess, Jonathan K.J. Faford, Dexter Pacheco, Christina R. Leopold, Colleen Cole, Veronica Deguzman
2016, Technical Report HCSU-069
Hawai‘i Volcanoes National Park (HAVO) encompasses 1,308 km2 on Hawai‘i Island. The park harbors endemic plants and animals which are threatened by a variety of invasive species. Introduced ungulates have caused sharp declines of numerous endemic species and have converted ecosystems to novel grazing systems in many cases. Local ranchers...
Alpine and Subalpine
Erin L. Muths
Lawrence L. C. Jones, Kenneth J. Halama, Robert E. Lovich, editor(s)
2016, Book chapter, Habitat Management Guidelines for Amphibians and Reptiles of the Southwestern United States
No abstract available. ...
Water quality and hydrology of Silver Lake, Oceana County, Michigan, with emphasis on lake response to nutrient loading
Angela K. Brennan, Christopher J. Hoard, Joseph W. Duris, Mary E. Ogdahl, Alan D. Steinman
2016, Scientific Investigations Report 2015-5158
Executive Summary Silver Lake is a 672-acre inland lake located in Oceana County, Michigan, and is a major tourist destination due to its proximity to Lake Michigan and the surrounding outdoor recreational opportunities. In recent years, Silver Lake exhibited patterns of high phosphorus concentrations, elevated chlorophyll a concentrations, and nuisance algal...
Potentiometric surfaces of the Arnold Engineering Development Complex Area, Arnold Air Force Base, Tennessee, May and September 2011
Connor J. Haugh, John A. Robinson
2016, Scientific Investigations Report 2015-5165
Arnold Air Force Base occupies about 40,000 acres in Coffee and Franklin Counties, Tennessee. The primary mission of Arnold Air Force Base is to provide risk-reduction information in the development of aerospace products through test and evaluation. This mission is achieved in part through test facilities at Arnold Engineering Development...
Innovation in monitoring: The U.S. Geological Survey Sacramento–San Joaquin River Delta, California, flow-station network
Jon Burau, Cathy Ruhl, Paul A. Work
2016, Fact Sheet 2015-3061
The U.S. Geological Survey (USGS) installed the first gage to measure the flow of water into California’s Sacramento–San Joaquin River Delta from the Sacramento River in the late 1800s. Today, a network of 35 hydro-acoustic meters measure flow throughout the delta. This region is a critical part of California’s freshwater...
The Lassen hydrothermal system
Steven E. Ingebritsen, Deborah Bergfeld, Laura Clor, William C. Evans
2016, American Mineralogist (101) 343-354
The active Lassen hydrothermal system includes a central vapor-dominated zone or zones beneath the Lassen highlands underlain by ~240 °C high-chloride waters that discharge at lower elevations. It is the best-exposed and largest hydrothermal system in the Cascade Range, discharging 41 ± 10 kg/s of steam (~115 MW) and 23...
Wood decay in desert riverine environments
Douglas Andersen, Craig A. Stricker, S. Mark Nelson
2016, Forest Ecology and Management (365) 83-95
Floodplain forests and the woody debris they produce are major components of riverine ecosystems in many arid and semiarid regions (drylands). We monitored breakdown and nitrogen dynamics in wood and bark from a native riparian tree, Fremont cottonwood (Populus deltoides subsp. wislizeni), along four North American desert streams. We placed locally-obtained, fresh,...
Comment on "Worldwide evidence of a unimodal relationship between productivity and plant species richness"
Andrew T. Tredennick, Peter B. Adler, James B. Grace, W Stanley Harpole, Elizabeth T. Borer, Eric W. Seabloom, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia S. Brown, Yvonne M. Buckley, Cheng-Jin Chu, Scott L. Collins, Michael J. Crawley, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Yann Hautier, Andy Hector, Helmut Hillebrand, Kevin P. Kirkman, Johannes M. H. Knops, Ramesh Laungani, Eric M. Lind, Andrew S. MacDougall, Rebecca L. McCulley, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Pablo L. Peri, Suzanne M. Prober, Anita C. Risch, Martin Schuetz, Karina L. Speziale, Rachel J. Standish, Lauren L. Sullivan, Glenda M. Wardle, Ryan J. Williams, Louie H. Yang
2016, Science (351) 457-a
Fraser et al. (Reports, 17 July 2015, p. 302) report a unimodal relationship between productivity and species richness at regional and global scales, which they contrast with the results of Adler et al. (Reports, 23 September 2011, p. 1750). However, both data sets, when analyzed correctly, show clearly and consistently...
