Temperature response of soil respiration largely unaltered with experimental warming
Joanna C. Carey, Jianwu Tang, Pamela H. Templer, Kevin D. Kroeger, Thomas W. Crowther, Andrew J. Burton, Jeffrey S. Dukes, Bridget Emmett, Serita D. Frey, Mary A. Heskel, Lifen Jiang, Megan B. Machmuller, Jacqueline Mohan, Anne Marie Panetta, Peter B. Reich, Sabine Reinsch, Xin Wang, Steven D. Allison, Chris Bamminger, Scott D. Bridgham, Scott L. Collins, Giovanbattista de Dato, William C. Eddy, Brian J. Enquist, Marc Estiarte, John Harte, Amanda Henderson, Bart R. Johnson, Klaus Steenberg Larsen, Yiqi Luo, Sven Marhan, Jerry M. Melillo, Josep Penuelas, Laurel Pfeifer-Meister, Christian Poll, Edward B. Rastetter, Andrew B. Reinmann, Lorien L. Reynolds, Inger K. Schmidt, Gaius R. Shaver, Aaron L. Strong, Vidya Suseela, Albert Tietema
2016, Proceedings of the National Academy of Sciences of the United States of America (113) 13797-13802
The respiratory release of carbon dioxide (CO2) from soil is a major yet poorly understood flux in the global carbon cycle. Climatic warming is hypothesized to increase rates of soil respiration, potentially fueling further increases in global temperatures. However, despite considerable scientific attention in recent decades, the overall response of...
Using resilience and resistance concepts to manage threats to sagebrush ecosystems, Gunnison sage-grouse, and Greater sage-grouse in their eastern range: A strategic multi-scale approach
Jeanne C. Chambers, Jeffrey L. Beck, Steve Campbell, John Carlson, Thomas J. Christiansen, Karen J. Clause, Jonathan B. Dinkins, Kevin E. Doherty, Kathleen A. Griffin, Douglas W. Havlina, Kenneth F. Mayer, Jacob D. Hennig, Laurie L. Kurth, Jeremy D. Maestas, Mary E. Manning, Brian A. Mealor, Clinton McCarthy, Marco A. Perea, David A. Pyke
2016, General Technical Report RMRS-GTR-356
This report provides a strategic approach developed by a Western Association of Fish and Wildlife Agencies interagency working group for conservation of sagebrush ecosystems, Greater sage-grouse, and Gunnison sage-grouse. It uses information on (1) factors that influence sagebrush ecosystem resilience to disturbance and resistance to nonnative invasive annual grasses and...
Testing geomorphology-derived rupture histories against the paleoseismic record of the southern San Andreas fault
Katherine M. Scharer, Ray J. Weldon, Sean Bemis
2016, Conference Paper, Proceedings of the 7th PATA Days, 2016
Evidence for the 340-km-long Fort Tejon earthquake of 1857 is found at each of the high-resolution paleoseismic sites on the southern San Andreas Fault. Using trenching data from these sites, we find that the assemblage of dated paleoearthquakes recurs quasi-periodically (coefficient of variation, COV, of 0.6, Biasi, 2013) and requires...
Prediction of fish and sediment mercury in streams using landscape variables and historical mining
Charles N. Alpers, Julie L. Yee, Joshua T. Ackerman, James L. Orlando, Darrell G. Slotton, Mark C. Marvin-DiPasquale
2016, Science of the Total Environment (571) 364-379
Widespread mercury (Hg) contamination of aquatic systems in the Sierra Nevada of California, U.S., is associated with historical use to enhance gold (Au) recovery by amalgamation. In areas affected by historical Au mining operations, including the western slope of the Sierra Nevada and downstream areas in northern California, such as...
Does paleoseismology forecast the historic rates of large earthquakes on the San Andreas fault system?
Glenn Biasi, Katherine M. Scharer, Ray J. Weldon, Timothy E. Dawson
2016, Conference Paper, Proceedings of the 7th PATA Days, 2016
The 98-year open interval since the most recent ground-rupturing earthquake in the greater San Andreas boundary fault system would not be predicted by the quasi-periodic recurrence statistics from paleoseismic data. We examine whether the current hiatus could be explained by uncertainties in earthquake dating. Using seven independent paleoseismic records,...
The Permian–Triassic transition in Colorado
James S. Hagadorn, Karen R. Whitely, Bonita L. Lahey, Charles M. Henderson, Christopher S. Holm-Denoma
2016, GSA Field Guides (44) 73-92
The Lykins Formation and its equivalents in Colorado are a stratigraphically poorly constrained suite of redbeds and intercalated stromatolitic carbonates, which is hypothesized to span the Permian-Triassic boundary. Herein we present a preliminary detrital zircon geochronology, new fossil occurrences, and δ13C chemostratigraphy for exposures along the Front Range and...
The Bonneville Flood—A veritable débâcle
Jim E. O'Connor
2016, Book chapter, Developments in earth surface processes, vol. 20
The Bonneville Flood was one of the largest floods on Earth. First discovered by G.K. Gilbert in the 1870s during his inspection of the outlet at Red Rock Pass, it was rediscovered in the 1950s by Harold Malde and coworkers, leading to mapping and assessment of spectacular flood features along...
The Chuar Petroleum System, Arizona and Utah
Paul G. Lillis
2016, Book chapter, Hydrocarbon source rocks in unconventional plays, Rocky Mountain Region
The Neoproterozoic Chuar Group consists of marine mudstone, sandstone and dolomitic strata divided into the Galeros and Kwagunt Formations, and is exposed only in the eastern Grand Canyon, Arizona. Research by the U.S. Geological Survey (USGS) in the late 1980s identified strata within the group to be possible petroleum source...
Petroleum system model of the Upper Devonian-Lower Mississippian Bakken Formation in the northern Williston Basin, Saskatchewan, southwestern Manitoba, and southeastern Alberta, Canada
Debra K. Higley, Nicholas J. Gianoutsos
2016, Book chapter, Hydrocarbon source rocks in unconventional plays, Rocky Mountain region: RMAG guidebook
No abstract available....
Overpressure development through time using 4D pressure-volume-temperature modeling in the deep Anadarko Basin, Colorado, Kansas, Oklahoma, and Texas
Debra K. Higley
2016, Book chapter, Hydrocarbon source rocks in unconventional plays, Rocky Mountain region: RMAG guidebook
No abstract available....
Using structure from motion photogrammetry to examine glide snow avalanches
Erich H. Peitzsch, Jordy Hendrikx, Daniel B. Fagre
2016, Conference Paper, Proceedings of the International Snow Science Workshop
Structure from Motion (SfM), a photogrammetric technique, has been used extensively and successfully in many fields including geosciences over the past few years to create 3D models and high resolution digital elevation models (DEMs) from aerial or oblique photographs. SfM has recently been used in a limited capacity in snow avalanche research and...
Case study: 2016 Natural glide and wet slab avalanche cycle, Going-to-the-Sun Road, Glacier National Park, Montana, USA
Jacob Hutchinson, Erich H. Peitzsch, Adam Clark
2016, Conference Paper, Proceedings of the International Snow Science Workshop
The Going-to-the-Sun Road (GTSR) is the premier tourist attraction in Glacier National Park, Montana. The GTSR also traverses through and under 40 avalanche paths which pose a hazard to National Park Service (NPS) road crews during the annual spring snow plowing operation. Through a joint collaboration between the NPS and the U.S. Geological...
Powell Center Newsletter, Volume 3, Issue 1
Marcia McNiff
2016, Report
Newsletter for the John Wesley Powell Center for Analysis and Synthesis, covering news from most of FY2016....
Habitat selection by Forster's Terns (Sterna forsteri) at multiple spatial scales in an urbanized estuary: The importance of salt ponds
Jill Bluso-Demers, Joshua T. Ackerman, John Y. Takekawa, Sarah H. Peterson
2016, Waterbirds (39) 375-387
The highly urbanized San Francisco Bay Estuary, California, USA, is currently undergoing large-scale habitat restoration, and several thousand hectares of former salt evaporation ponds are being converted to tidal marsh. To identify potential effects of this habitat restoration on breeding waterbirds, habitat selection of radiotagged Forster's Terns (Sterna forsteri) was...
Uncertainty quantification and propagation for projections of extremes in monthly area burned under climate change: A case study in the coastal plain of Georgia, USA
Adam J. Terando, Brian J. Reich, Krishna Pacifici, Jennifer Costanza, Alexa McKerrow, Jaime A. Collazo
Karin L. Riley, Peter Webley, Matthew Thompson, editor(s)
2016, Book chapter, Natural hazard uncertainty assessment: Modeling and decision support
Human‐caused climate change is predicted to affect the frequency of hazard‐linked extremes. Unusually large wildfires are a type of extreme event that is constrained by climate and can be a hazard to society but also an important ecological disturbance. This chapter focuses on changes in the frequency of extreme monthly...
Application of activity sensors for estimating behavioral patterns
Caleb P. Roberts, James W. Cain III, Robert D. Cox
2016, Wildlife Society Bulletin (40) 764-771
The increasing use of Global Positioning System (GPS) collars in habitat selection studies provides large numbers of precise location data points with reduced field effort. However, inclusion of activity sensors in many GPS collars also grants the potential to remotely estimate behavioral state. Thus, only using GPS collars to collect...
Assessment of undiscovered continuous oil and gas resources in the Dnieper-Donets Basin and North Carpathian Basin Provinces, Ukraine, Romania, Moldova, and Poland, 2015
Timothy R. Klett, Christopher J. Schenk, Michael E. Brownfield, Ronald R. Charpentier, Tracey J. Mercier, Heidi M. Leathers-Miller, Marilyn E. Tennyson
2016, Fact Sheet 2016-3082
Using a geology-based methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 13 million barrels of oil and 2,643 billion cubic feet of natural gas in the Dnieper-Donets Basin and North Carpathian Basin Provinces of Ukraine, Romania, Moldova, and Poland....
Mountain goat abundance and population trends in the Olympic Mountains, northwestern Washington, 2016
Kurt J. Jenkins, Patricia J. Happe, Katherine F. Beirne, William T. Baccus
2016, Open-File Report 2016-1185
Executive SummaryWe estimated abundance and trends of non-native mountain goats (Oreamnos americanus) in the Olympic Mountains of northwestern Washington, based on aerial surveys conducted during July 13–24, 2016. The surveys produced the seventh population estimate since the first formal aerial surveys were conducted in 1983. This was the second population...
Lidar-based mapping of flood control levees in south Louisiana
Cindy A. Thatcher, Samsung Lim, Monica Palaseanu-Lovejoy, Jeffrey J. Danielson, Dustin R. Kimbrow
2016, International Journal of Remote Sensing (37) 5708-5725
Flood protection in south Louisiana is largely dependent on earthen levees, and in the aftermath of Hurricane Katrina the state’s levee system has received intense scrutiny. Accurate elevation data along the levees are critical to local levee district managers responsible for monitoring and maintaining the extensive system of non-federal levees...
Model description and evaluation of the mark-recapture survival model used to parameterize the 2012 status and threats analysis for the Florida manatee (Trichechus manatus latirostris)
Catherine A. Langtimm, William L. Kendall, Cathy A. Beck, Howard I. Kochman, Amy L. Teague, Gaia Meigs-Friend, Claudia L. Penaloza
2016, Open-File Report 2016-1163
This report provides supporting details and evidence for the rationale, validity and efficacy of a new mark-recapture model, the Barker Robust Design, to estimate regional manatee survival rates used to parameterize several components of the 2012 version of the Manatee Core Biological Model (CBM) and Threats Analysis (TA). The CBM...
Was everything bigger in Texas? Characterization and trends of a land-based recreational shark fishery
Matthew J. Ajemian, Philip D. Jose, John T. Froeschke, Mark L. Wildhaber, Gregory W. Stunz
2016, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science (8) 553-566
Although current assessments of shark population trends involve both fishery-independent and fishery-dependent data, the latter are generally limited to commercial landings that may neglect nearshore coastal habitats. Texas has supported the longest organized land-based recreational shark fishery in the United States, yet no studies have used this “non-traditional” data source...
Vive la résistance: genome-wide selection against introduced alleles in invasive hybrid zones
Ryan P. Kovach, Brian K. Hand, Paul A. Hohenlohe, Ted F. Cosart, Matthew C. Boyer, Helen H. Neville, Clint C. Muhlfeld, Stephen J. Amish, Kellie Carim, Shawn R. Narum, Winsor H. Lowe, Fred W. Allendorf, Gordon Luikart
2016, Proceedings of the Royal Society B: Biological Sciences (283)
Evolutionary and ecological consequences of hybridization between native and invasive species are notoriously complicated because patterns of selection acting on non-native alleles can vary throughout the genome and across environments. Rapid advances in genomics now make it feasible to assess locus-specific and genome-wide patterns of natural selection acting on invasive...
Quantifying gas emissions from the 946 CE Millennium Eruption of Paektu volcano, Democratic People's Republic of Korea/China
Kayla Iacovino, Kim Ju-Song, Thomas W. Sisson, Jacob B. Lowenstern, Ri Ku-Hun, Jang Jong-Nam, Song Kun-Ho, Ham Song-Hwan, Clive Oppenheimer, James O.S. Hammond, Amy Donovan, Kosima Weber-Liu, Ryu Kum-Ran
2016, Science Advances (2) 1-11
Paektu volcano (Changbaishan) is a rhyolitic caldera that straddles the border between the Democratic People's Republic of Korea (DPRK) and China. Its most recent large eruption was the Millennium Eruption (ME; 23 km3 DRE) circa 946 CE, which resulted in the release of copious magmatic volatiles (H2O, CO2, sulfur, and...
Annualized earthquake loss estimates for California and their sensitivity to site amplification
Rui Chen, Kishor S. Jaiswal, D Bausch, H Seligson, C.J. Wills
2016, Seismological Research Letters (87) 1363-1372
Input datasets for annualized earthquake loss (AEL) estimation for California were updated recently by the scientific community, and include the National Seismic Hazard Model (NSHM), site‐response model, and estimates of shear‐wave velocity. Additionally, the Federal Emergency Management Agency’s loss estimation tool, Hazus, was updated to include the most recent census...
Aqueous exposure to the progestin, levonorgestrel, alters anal fin development and reproductive behavior in the eastern mosquitofish (Gambusia holbrooki)
Tyler E. Frankel, Michael T. Meyer, Edward F. Orlando
2016, General and Comparative Endocrinology (234) 161-169
Endogenous progestogens are important regulators of vertebrate reproduction. Synthetic progestins are components of human contraceptive and hormone replacement pharmaceuticals. Both progestogens and progestins enter the environment through a number of sources, and have been shown to cause profound effects on reproductive health in various aquatic vertebrates. Progestins are designed to...
