CO2 cycle
Timothy N. Titus, Shane Byrne, Anthony Colaprete, Francois Forget, Timothy I. Michaels, Thomas H. Prettyman
2017, Book chapter, The atmosphere and climate of Mars
This chapter discusses the use of models, observations, and laboratory experiments to understand the cycling of CO2 between the atmosphere and seasonal Martian polar caps. This cycle is primarily controlled by the polar heat budget, and thus the emphasis here is on its components, including solar and infrared radiation, the...
Connecting the Soda–Avawatz and Bristol–Granite Mountains faults with gravity andaeromagnetic data, Mojave Desert, California
Victoria E. Langenheim, David M. Miller
2017, Conference Paper, ECSZ does it: Revisiting the Eastern California Shear Zone 2017 Desert Symposium Field Guide and Proceedings
The Soda–Avawatz and Bristol–Granite Mountains faults are considered by some to form the northeastern margin of the eastern California shear zone yet their connectivity and extents are obscured by surficial deposits and the estimates of total right-lateral offset from geologic data range from 0 to as much as 24 km....
Vectors, hosts, and control measures for Zika virus in the Americas
Sarah J. Thompson, John M. Pearce, Andrew M. Ramey
2017, EcoHealth (14) 821-839
We examine Zika virus (ZIKV) from an ecological perspective and with a focus on the Americas. We assess (1) the role of wildlife in ZIKV disease ecology, (2) how mosquito behavior and biology influence disease dynamics, and (3) how nontarget species and ecosystems may be impacted by vector control programs....
Determining quantity and quality of retained oil in mature marly chalk and marlstone of the Cretaceous Niobrara Formation by low-temperature hydrous pyrolysis
Michael Lewan, Mark D. Sonnenfeld
2017, Conference Paper, Unconventional Resources Technology Conference
Low-temperature hydrous pyrolysis (LTHP) at 300°C (572°F) for 24 h released retained oils from 12- to 20-meshsize samples of mature Niobrara marly chalk and marlstone cores. The released oil accumulated on the water surface of the reactor, and is compositionally similar to oil produced from the same well. The quantities...
Turtles: Freshwater
J. Whitfield Gibbons, Jeffrey E. Lovich, R.M. Bowden
2017, Book chapter, Reference module in life sciences
With their iconic shells, turtles are morphologically distinct in being the only extant or extinct vertebrate animals to have their shoulders and hips inside their rib cages. By the time an asteroid hit the earth 65.5 million years ago, causing the extinction of dinosaurs, turtles were already an ancient lineage...
Documenting mudstone heterogeneity by use of principal component analysis of X-ray diffraction and portable X-ray fluorescence data: A case study in the Triassic Shublik Formation, Alaska North Slope
Adam Boehlke, Katherine J. Whidden, William Benzel
2017, Conference Paper, SEPM-AAPG Research Conference
Determining the chemical and mineralogical variability within fine-grained mudrocks poses analytical challenges but is potentially useful for documenting subtle stratigraphic differences in physicochemical environments that may influence petroleum reservoir properties and behavior. In this study, we investigate the utility of combining principal component analysis (PCA) of X-ray diffraction (XRD) data...
Vulnerability of coral reefs to bioerosion from land-based sources of pollution
Nancy G. Prouty, Anne Cohen, Kimberly K. Yates, Curt D. Storlazzi, Peter W. Swarzenski, Darla White
2017, Journal of Geophysical Research C: Oceans (122) 9319-9331
Ocean acidification (OA), the gradual decline in ocean pH and [ ] caused by rising levels of atmospheric CO2, poses a significant threat to coral reef ecosystems, depressing rates of calcium carbonate (CaCO3) production, and enhancing rates of bioerosion and dissolution. As...
Sampling for age and growth estimation
Leandro E. Miranda, M.E. Colvin
Michael C. Quist, Daniel A. Isermann, editor(s)
2017, Book chapter, Age and growth of fishes: Principles and techniques
No abstract available....
Geochemical and mineralogical characterization of the Eagle Ford Shale: Results from the USGS Gulf Coast #1 West Woodway core
Justin E. Birdwell, Adam Boehlke, Stanley T. Paxton, Katherine J. Whidden, Ofori N. Pearson
2017, Gulf Coast Association of Geological Societies Transactions (67) 391-395
The Eagle Ford shale is a major continuous oil and gas resource play in southcentral Texas and a source for other oil accumulations in the East Texas Basin. As part of the U.S. Geological Survey’s (USGS) petroleum system assessment and research efforts, a coring program to obtain several immature, shallow...
Case study - Dynamic pressure-limited capacity and costs of CO2 storage in the Mount Simon sandstone
Steven T. Anderson, Hossein Jahediesfanjani
2017, Conference Paper, 35th USAEE/IAEE North American Conference
Widespread deployment of carbon capture and storage (CCS) is likely necessary to be able to satisfy baseload electricity demand, to maintain diversity in the energy mix, and to achieve climate and other objectives at the lowest cost. If all of the carbon dioxide (CO2) emissions from stationary sources (such as...
Spatial data analytics on heterogeneous multi- and many-core parallel architectures using python
Jason R. Laura, Sergio J. Rey
2017, Book chapter, Encyclopedia of GIS
Parallel vector spatial analysis concerns the application of parallel computational methods to facilitate vector-based spatial analysis. The history of parallel computation in spatial analysis is reviewed, and this work is placed into the broader context of high-performance computing (HPC) and parallelization research. The rise of cyber infrastructure and its manifestation...
Heterogeneous responses of temperate-zone amphibian populations to climate change complicates conservation planning
Erin L. Muths, Thierry A. Chambert, B. R. Schmidt, D. A. W. Miller, Blake R. Hossack, P. Joly, O. Grolet, D. M. Green, David S. Pilliod, M. Cheylan, Robert N. Fisher, R. M. McCaffery, M. J. Adams, W. J. Palen, J. W. Arntzen, J. Garwood, Gary M. Fellers, J. M. Thirion, A. Besnard, Evan H. Campbell Grant
2017, Scientific Reports (7) 1-10
The pervasive and unabated nature of global amphibian declines suggests common demographic responses to a given driver, and quantification of major drivers and responses could inform broad-scale conservation actions. We explored the influence of climate on demographic parameters (i.e., changes in the probabilities of survival and recruitment) using 31 datasets...
Boiling-induced formation of colloidal gold in black smoker hydrothermal fluids
Amy Gartman, Mark Hannington, John W. Jamieson, Ben Peterkin, Dieter Garbe-Schonberg, Alyssa J Findlay, Sebastian Fuchs, Tom Kwasnitschka
2017, Geology (46) 39-42
Gold colloids occur in black smoker fluids from the Niua South hydrothermal vent field, Lau Basin (South Pacific Ocean), confirming the long-standing hypothesis that gold may undergo colloidal transport in hydrothermal fluids. Six black smoker vents, varying in temperature from 250 °C to 325 °C, were sampled; the 325 °C...
Characters in Arctostaphylos taxonomy
Jon E. Keeley, V. Thomas Parker, Michael C. Vasey
2017, Madroño (64) 138-153
There is value in understanding the past and how it has affected the present. Science focuses on empirical findings, and we know that our prior experiences and those of our predecessors play important roles in determining how we interpret the present. We learn from accomplishments and foibles of predecessors and...
Interactions among invasive plants: Lessons from Hawai‘i
Carla M. D’Antonio, Rebecca Ostertag, Susan Cordell, Stephanie G. Yelenik
2017, Annual Review of Ecology, Evolution, and Systematics (48) 521-541
Most ecosystems have multiple-plant invaders rather than single-plant invaders, yet ecological studies and management actions focus largely on single invader species. There is a need for general principles regarding invader interactions across varying environmental conditions, so that secondary invasions can be anticipated and managers can allocate resources toward pretreatment or...
Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska
Kyle R. Hogrefe, Vijay P. Patil, Daniel R. Ruthrauff, Brandt W. Meixell, Michael E. Budde, Jerry W. Hupp, David H. Ward
2017, Remote Sensing (9)
Tools that can monitor biomass and nutritional quality of forage plants are needed to understand how arctic herbivores may respond to the rapidly changing environment at high latitudes. The Normalized Difference Vegetation Index (NDVI) has been widely used to assess changes in abundance and distribution of terrestrial vegetative communities. However,...
Walleye age estimation using otoliths and dorsal spines: Preparation techniques and sampling guidelines based on sex and total length
Daniel J. Dembkowski, Daniel A. Isermann, Ryan P. Koenigs
2017, Journal of Fish and Wildlife Management (8) 474-486
We used dorsal spines and otoliths from 735 Walleye Sander vitreus collected from 35 Wisconsin water bodies to evaluate whether 1) otolith and dorsal spine cross sections provided age estimates similar to simpler methods of preparation (e.g., whole otoliths and dorsal spines, cracked otoliths); and 2) between-reader precision and differences between spine...
Do observed levels of exploitation from consumption-oriented and trophy-oriented fisheries reduce relative stock densities of Muskellunge below target levels in northern Wisconsin?
Matthew D. Faust, Michael J. Hansen
2017, Book chapter, Muskellunge management: Fifty years of cooperation among anglers, scientists, and fisheries biologists
Muskellunge anglers desire to catch large fish, and release rates by recreational anglers often approach 100% (Isermann et al. 2011). Muskellunge are also a culturally significant fish for Chippewa tribes and support a subsistence spearing fishery in Wisconsin’s Ceded Territory (Erickson 2007). Although Muskellunge populations within the state’s Ceded Territory...
Metabarcoding of environmental DNA samples to explore the use of uranium mine containment ponds as a water source for wildlife
Katy E. Klymus, Catherine A. Richter, Nathan Thompson, Jo Ellen Hinck
2017, Diversity (9)
Understanding how anthropogenic impacts on the landscape affect wildlife requires a knowledge of community assemblages. Species surveys are the first step in assessing community structure, and recent molecular applications such as metabarcoding and environmental DNA analyses have been proposed as an additional and complementary wildlife survey method. Here, we test...
Building translational ecology communities of practice: insights from the field
Dawn M. Lawson, Kimberly R. Hall, Laurie Yung, Carolyn A. F. Enquist
2017, Frontiers in Ecology and the Environment (15) 569-577
Translational ecology (TE) prioritizes the understanding of social systems and decision contexts in order to address complex natural resource management issues. Although many practitioners in applied fields employ translational tactics, the body of literature addressing such approaches is limited. We present several case studies illustrating the principles of TE and...
Foundations of translational ecology
Carolyn A. F. Enquist, Stephen T. Jackson, Gregg M. Garfin, Frank W. Davis, Leah R. Gerber, Jeremy S. Littell, Jennifer L. Tank, Adam Terando, Tamara U. Wall, Benjamin S. Halpern, J. Kevin Hiers, Toni L. Morelli, Elizabeth McNie, Nathan L. Stephenson, Matthew A. Williamson, Connie A. Woodhouse, Laurie Yung, Mark W. Brunson, Kimberly R. Hall, Lauren M. Hallett, Dawn M. Lawson, Max A. Moritz, Koren R. Nydick, Amber Pairis, Andrea J. Ray, Claudia M. Regan, Hugh D. Safford, Mark W. Schwartz, M. Rebecca Shaw
2017, Frontiers in Ecology and the Environment (15) 541-550
Ecologists who specialize in translational ecology (TE) seek to link ecological knowledge to decision making by integrating ecological science with the full complement of social dimensions that underlie today's complex environmental issues. TE is motivated by a search for outcomes that directly serve the needs of natural resource managers and...
A mass balance approach to investigate arsenic cycling in a petroleum plume
Brady A. Ziegler, Madeline E. Schreiber, Isabelle M. Cozzarelli, Ng. G.-H. Crystal
2017, Environmental Pollution (231) 1351-1361
Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally...
Status and conservation of Yellowstone cutthroat trout in the Greater Yellowstone Area
Robert K. Al-Chokhachy, Bradley Shepard, Jason Burckhardt, Scott Opitz, Dan Garren, Todd M. Koel, Lee M. Nelson
2017, Yellowstone Science (25) 13-17
No abstract available....
Early-career experts essential for planetary sustainability
Michelle Lim, Abigail J. Lynch, Alvaro Fernandez-Llamazares, Lenke Balint, Zeenatul Basher, Ivis Chan, Pedro Jaureguiberry, A.A.A. Mohamed, Tuyeni H. Mwampamba, Ignacio Palomo, Patricio Pliscoff, R.A. Salimov, Aibek Samakov, Odirilwe Selomane, Uttam B. Shrestha, Anna A. Sidorovich
2017, Current Opinion in Environmental Sustainability (29) 151-157
Early-career experts can play a fundamental role in achieving planetary sustainability by bridging generational divides and developing novel solutions to complex problems. We argue that intergenerational partnerships and interdisciplinary collaboration among early-career experts will enable emerging sustainability leaders to contribute fully to a sustainable future. We review 16 international, interdisciplinary,...
Wildlife value orientation stability among South Dakota residents: Setting the stage for a longitudinal analysis
Larry M. Gigliotti, Andrew W. Don Carlos
2017, Proceedings of the South Dakota Academy of Science (96) 77-93
The concept of wildlife value orientations (WVOs) has been useful for understanding the diversity of public interests in wildlife management and has been shown to be a strong predictor of public attitudes towards a wide range of wildlife management actions and policies. WVOs consist of two predominant value orientations (domination...
