Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies
Matthew Smart, Jeff S. Pettis, Ned H. Jr. Euliss, Marla S. Spivak
2016, Agriculture, Ecosystems and Environment (230) 139-149
The Northern Great Plains region of the US annually hosts a large portion of commercially managed U.S. honey bee colonies each summer. Changing land use patterns over the last several decades have contributed to declines in the availability of bee forage across the region, and the future sustainability of the...
Does resolution of flow field observation influence apparent habitat use and energy expenditure in juvenile coho salmon?
Desiree D. Tullos, Cara Walter, Jason B. Dunham
2016, Water Resources Research (52) 5938-5950
This study investigated how the resolution of observation influences interpretation of how fish, juvenile Coho Salmon (Oncorhynchus kisutch), exploit the hydraulic environment in streams. Our objectives were to evaluate how spatial resolution of the flow field observation influenced: (1) the velocities considered to be representative of habitat units; (2) patterns...
Fortnightly modulation of San Andreas tremor and low-frequency earthquakes
Nicholas van der Elst, Andrew Delorey, David R. Shelly, Paul Johnson
2016, Proceedings of the National Academy of Sciences (113) 8601-8605
Earth tides modulate tremor and low-frequency earthquakes (LFEs) on faults in the vicinity of the brittle−ductile (seismic−aseismic) transition. The response to the tidal stress carries otherwise inaccessible information about fault strength and rheology. Here, we analyze the LFE response to the fortnightly tide, which modulates the amplitude of the daily...
sbtools: A package connecting R to cloud-based data for collaborative online research
Luke Winslow, Scott Chamberlain, Alison P. Appling, Jordan S. Read
2016, The R Journal (8) 387-398
The adoption of high-quality tools for collaboration and reproducible research such as R and Github is becoming more common in many research fields. While Github and other version management systems are excellent resources, they were originally designed to handle code and scale poorly to large text-based or binary datasets. A...
Comment on “Geochemistry of buried river sediments from Ghaggar Plains, NW India: Multi-proxy records of variations in provenance, paleoclimate, and paleovegetation patterns in the late quaternary” by Ajit Singh, Debajyoti Paul, Rajiv Sinha, Kristina J. Thomsen, Sanjeev Gupta
Peter D. Clift, Liviu Giosan, Amy E. East
2016, Palaeogeography, Palaeoclimatology, Palaeoecology (455) 65-67
Singh et al. (2016) published a geochemical record of sediment compositions from the flood plain of the Ghaggar River in western India and use the changing provenance, particularly as traced by Nd isotope composition, to reconstruct how erosion patterns have changed over the past 100 k.y. In doing so they...
Insights into plant water uptake from xylem-water isotope measurements in two tropical catchments with contrasting moisture conditions
Jaivime Evaristo, Jeffrey J. McDonnell, Martha A. Scholl, L. Adrian Bruijnzeel, Kwok P. Chun
2016, Hydrological Processes (30) 3210-3227
Water transpired by trees has long been assumed to be sourced from the same subsurface water stocks that contribute to groundwater recharge and streamflow. However, recent investigations using dual water stable isotopes have shown an apparent ecohydrological separation between tree-transpired water and stream water. Here we present evidence for such...
Novel cell-based assay for detection of thyroid receptor beta-interacting environmental contaminants
Diana A. Stavreva, Lyuba Varticovski, Ludmila Levkova, Anuja A. George, Luke Davis, Gianluca Pegoraro, Vicki S. Blazer, Luke R. Iwanowicz, Gordon L. Hager
2016, Toxicology (368-369) 69-79
Even though the presence of endocrine disrupting chemicals (EDCs) with thyroid hormone (TH)-like activities in the environment is a major health concern, the methods for their efficient detection and monitoring are still limited. Here we describe a novel cell assay, based on the translocation of a green fluorescent protein (GFP)—tagged...
Measuring, interpreting, and responding to changes in coral reefs: A challenge for biologists, geologist, and managers
Caroline S. Rogers, Jeff Miller
Dennis K. Hubbard, Caroline S. Rogers, Jere H. Lipps, George D. Stanley Jr., editor(s)
2016, Book chapter, Coral reefs at the crossroads
What, exactly, is a coral reef? And how have the world’s reefs changed in the last several decades? What are the stressors undermining reef structure and function? Given the predicted effects of climate change, do reefs have a future? Is it possible to “manage” coral reefs for resilience?...
Spawning and hatching of endangered Gila Chub in captivity
Andrew A. Schultz, Scott A. Bonar
2016, North American Journal of Aquaculture (78) 279-283
Information on reproductive characteristics of the endangered Gila Chub Gila intermedia is largely limited and qualitative, and culture techniques and requirements are virtually unknown. Here we provide the first published data on spawning and selected reproductive and developmental characteristics of Gila Chub. Fish were brought to the laboratory in March...
Multispecies cccupancy modeling as a tool for evaluating the status and distribution of Darters in the Elk River, Tennessee
Kathryn M. Potoka, Colin P. Shea, Phillip William Bettoli
2016, Transactions of the American Fisheries Society (145) 1110-1121
Sixteen darter species, including the federally endangered Boulder Darter Etheostoma wapiti, are known to occur in the Elk River, a large, flow-regulated tributary of the Tennessee River, Tennessee–Alabama. Since the construction of Tims Ford Dam (TFD) in 1970, habitat modification caused by cold, hypolimnetic water releases and peak-demand hydropower generation...
Complex explosive volcanic activity on the Moon within Oppenheimer crater
Kristen A Bennett, Briony H. N. Horgan, Lisa R. Gaddis, Benjamin T Greenhagen, Carlton C. Allen, Paul O. Hayne, James F. Bell, David A. Paige
2016, Icarus (273) 296-314
Oppenheimer Crater is a floor-fractured crater located within the South Pole-Aitken basin on the Moon, and exhibits more than a dozen localized pyroclastic deposits associated with the fractures. Localized pyroclastic volcanism on the Moon is thought to form as a result of intermittently explosive Vulcanian eruptions under low effusion rates,...
Geochemistry, petrologic evolution, and ore deposits of the Miocene Bodie Hills Volcanic Field, California and Nevada
Edward A. du Bray, David A. John, Brian L. Cousens, Leslie A. Hayden, Peter G. Vikre
2016, American Mineralogist (101) 644-677
The southern segment of the ancestral Cascades magmatic arc includes numerous volcanic fields; among these, the Bodie Hills volcanic field (BHVF), astride the California-Nevada border north of Mono Lake, is one of the largest (>700 km2) and most well studied. Episodic magmatism in the BHVF spanned about 9 million years...
On the deterministic and stochastic use of hydrologic models
William H. Farmer, Richard M. Vogel
2016, Water Resources Research (52) 5619-5633
Environmental simulation models, such as precipitation-runoff watershed models, are increasingly used in a deterministic manner for environmental and water resources design, planning, and management. In operational hydrology, simulated responses are now routinely used to plan, design, and manage a very wide class of water resource systems. However, all such models...
Managing water and riparian habitats on the Bill Williams River with scientific benefit for other desert river systems
John Hickey, Woodrow Fields, Andrew Hautzinger, Steven Sesnie, Patrick B. Shafroth, Dick Gilbert
2016, Report
This report details modeling to: 1) codify flow-ecology relationships for riparian species of the Bill Williams River as operational guidance for water managers, 2) test the guidance under different climate scenarios, and 3) revise the operational guidance as needed to address the effects of climate change. Model applications detailed herein...
First record of the common sandpiper for the Hawaiian Islands
Thane K. Pratt
2016, Western Birds (47) 167-169
With a breeding range spanning Eurasia and a winter range extending from Africa to Australasia, the Common Sandpiper (Actitis hypoleucos) is indeed the common and familiar sandpiper of the Old World. It is the Old World counterpart of the Spotted Sandpiper (A. macularius) of the Americas and its only congener....
Budgets and chemical characterization of groundwater for the Diamond Valley flow system, central Nevada, 2011–12
David L. Berger, C. Justin Mayers, C. Amanda Garcia, Susan G. Buto, Jena M. Huntington
2016, Scientific Investigations Report 2016-5055
The Diamond Valley flow system consists of six hydraulically connected hydrographic areas in central Nevada. The general down-gradient order of the areas are southern and northern Monitor Valleys, Antelope Valley, Kobeh Valley, Stevens Basin, and Diamond Valley. Groundwater flow in the Diamond Valley flow system terminates at a large playa...
Observations of cocooned Hydrobaenus (Diptera: Chironomidae) larvae in Lake Michigan
Taaja R. Tucker, Patrick L. Hudson, Stephen Riley
2016, Journal of Great Lakes Research (42) 1129-1135
Larvae of the family Chironomidae have developed a variety of ways to tolerate environmental stress, including the formation of cocoons, which allows larvae to avoid unfavorable temperature conditions, drought, or competition with other chironomids. Summer cocoon formation by younger instars of the genus Hydrobaenus Fries allows persistence through increased temperatures and/or intermittent...
Hydrogeologic investigations of the Miocene Nogales Formation in the Nogales Area, Upper Santa Cruz Basin, Arizona
William R. Page, Floyd Gray, Mark W. Bultman, Christopher M. Menges
2016, Scientific Investigations Report 2016-5087
Hydrogeologic investigations were conducted to evaluate the groundwater resource potential for the Miocene Nogales Formation in the Nogales area, southern Arizona. Results indicate that parts of the formation may provide new, deeper sources of groundwater for the area. Geologic mapping determined the hydrogeologic framework of the formation by defining lithologic,...
Soil data for a vegetation gradient located at Bonanza Creek Long Term Ecological Research Site, interior Alaska
Kristen L. Manies, Jennifer W. Harden, Christopher C. Fuller, Xiaomei Xu, John P. McGeehin
2016, Open-File Report 2016-1034
Boreal soils play an important role in the global carbon cycle owing to the large amount of carbon stored within this northern region. To understand how carbon and nitrogen storage varied among different ecosystems, a vegetation gradient was established in the Bonanza Creek Long Term Ecological Research (LTER) site,...
Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008–14
Caitlin E. Reynolds, Julie N. Richey
2016, Open-File Report 2016-1115
The U.S. Geological Survey anchored a sediment trap in the northern Gulf of Mexico in January 2008 to collect seasonal time-series data on the flux and assemblage composition of live planktic foraminifers. This report provides an update of the previous time-series data to include continuous results from January 2013 through...
ChemCam activities and discoveries during the nominal mission of the Mars Science Laboratory in Gale crater, Mars
Sylvestre Maurice, Samuel M. Clegg, Roger C. Wiens, O. Gasnault, W. Rapin, O. Forni, Agnes Cousin, V. Sautter, Nicolas Mangold, L. Le Deit, Marion Nachon, Ryan B. Anderson, Nina Lanza, Cecile Fabre, Valerie Payre, Jeremie Lasue, Pierre-Yves Meslin, Richard A. LeVeille, Bruce Barraclough, Pierre Beck, Steven C. Bender, Gilles Berger, John C. Bridges, Nathan Bridges, Gilles Dromert, M. Darby Dyar, Raymond Francis, Jens Frydenvang, B. Gondet, Bethany L. Ehlmann, Kenneth E. Herkenhoff, Jeffrey R. Johnson, Yves Langevin, Madsen Morten B., N. Melikechi, J.-L. Lacour, Stephane Le Mouelic, Eric Lewin, Horton E. Newsom, Ann M. Ollila, Patrick Pinet, S. Schroder, Jean-Baptiste Sirven, Robert L. Tokar, M.J. Toplis, Claude d’Uston, David Vaniman, Ashwin R. Vasavada
2016, Journal of Analytical Atomic Spectrometry (31) 863-889
At Gale crater, Mars, ChemCam acquired its first laser-induced breakdown spectroscopy (LIBS) target on Sol 13 of the landed portion of the mission (a Sol is a Mars day). Up to Sol 800, more than 188 000 LIBS spectra were acquired on more than 5800 points distributed over about 650 individual...
Osmoregulatory physiology and rapid evolution of salinity tolerance in threespine stickleback recently introduced to fresh water
Jeffrey N Divino, Michelle Y. Monette, Stephen D. McCormick, Paul H. Yancey, Kyle G. Flannery, Michael A. Bell, Jennifer L. Rollins, Frank A. von Hippel, Eric T. Schultz
2016, Evolutionary Ecology Research (17) 179-201
Background: Post-Pleistocene diversification of threespine stickleback in fresh water offers a valuable opportunity to study how changes in environmental salinity shape physiological evolution in fish. In Alaska, the presence of both ancestral oceanic populations and derived landlocked populations, including recent lake introductions, allows us to examine rates and direction of evolution...
Agricultural irrigated land-use inventory for the counties in the Suwannee River Water Management District in Florida, 2015
Richard L. Marella, Joann F. Dixon, Darbi R. Berry
2016, Open-File Report 2016-1111
A detailed inventory of irrigated crop acreage is not available at the level of resolution needed to accurately estimate agricultural water use or to project future water demands in many Florida counties. A detailed digital map and summary of irrigated acreage during the 2015 growing season was developed for 13...
Ordinary kriging as a tool to estimate historical daily streamflow records
William H. Farmer
2016, Hydrology and Earth System Sciences (20) 2721-2735
Efficient and responsible management of water resources relies on accurate streamflow records. However, many watersheds are ungaged, limiting the ability to assess and understand local hydrology. Several tools have been developed to alleviate this data scarcity, but few provide continuous daily streamflow records at individual streamgages within an entire region....
Evaluation of leaf removal as a means to reduce nutrient concentrations and loads in urban stormwater
William R. Selbig
2016, Science of the Total Environment (571) 124-133
While the sources of nutrients to urban stormwater are many, the primary contributor is often organic detritus, especially in areas with dense overhead tree canopy. One way to remove organic detritus before it becomes entrained in runoff is to implement a city-wide leaf collection and...
