Isotopic ratios of Saturn's rings and satellites: Implications for the origin of water and Phoebe
Roger N. Clark, Robert H. Brown, D.P. Cruikshank, Gregg A. Swayze
2019, Icarus (40) 431-470
Isotopic ratios have long been used to learn about physical processes acting over a wide range of geological environments, and in constraining the origin and/or evolution of planetary bodies. We report the spectroscopic detection of deuterium in Saturn's rings and satellites, and use these measurements to determine the (D/H) ratios...
Topographic mapping evolution: From field and photogrammetric data collection to GIS production and Linked Open Data
E. Lynn Usery, Dalia E. Varanka, Larry Davis
2019, Cartographic Journal (55) 378-390
Whither the topographic map? Topographic mapping historically has been approached as a map factory operation through the period 1879-1990. During this time, data were field and photogrammetrically collected; cartographically verified and annotated creating a compilation manuscript; further edited, generalized, symbolized, and produced as a graphic output product using lithography, or...
Recent trends in nutrient and sediment loading to coastal areas of the conterminous U.S.: Insights and global context
Gretchen P. Oelsner, Edward G. Stets
2019, Science of the Total Environment (654) 1225-1240
Coastal areas in the U.S. and worldwide have experienced massive population and land use changes contributing to significant degradation of coastal ecosystems. Excess nutrient pollution causes coastal ecosystem degradation, and both regulatory and management efforts have targeted reducing nutrient and sediment loading to coastal rivers. Decadal trends in flow-normalized nutrient...
Landscape connectivity planning for adaptation to future climate and land-use change
Jennifer K. Costanza, Adam J. Terando
2019, Current Landscape Ecology Reports (4) 1-13
Purpose of ReviewWe examined recent literature on promoting habitat connectivity in the context of climate change (CC) and land-use change (LUC). These two global change forcings have wide-reaching ecological effects that are projected to worsen in the future. Improving connectivity is a common adaptation strategy,...
Adjudicating groundwater: A judge’s guide to understanding groundwater and modeling
Thomas Harter, Tara Moran, Eric Wildman
Alf Brandt, Michael N. Fienen, Jeremy T. White, editor(s)
2019, Book
Dividing the Waters offers this groundwater science bench book that cannot be matched by any other scientific or judicial publication. Adjudicating Groundwater combines the expertise and experience of academic scientists (UC Davis/Stanford), federal scientists (U.S. Geological Survey), and judicial officers to create a resource that can fulfill the needs of...
When the earth doesn’t stop shaking: How experiences over time influenced information needs, communication, and interpretation of aftershock information during the Canterbury Earthquake Sequence, New Zealand
Julia S. Becker, Sally H. Potter, Sara K. McBride, Anne M. Wein, Douglas Paton
2019, Natural Hazards (34) 397-411
The Canterbury Earthquake Sequence (CES) began with the Darfield earthquake on 4 September 2010. Continual large and small aftershocks since that time have meant communities have cycled through repeated periods of impact, response and recovery. Scientific communication about aftershocks during such a prolonged sequence has faced distinct challenges. We conducted research to better understand...
Integrating magnetotellurics, soil gas geochemistry and structural analysis to identify hidden, high enthalpy, extensional geothermal systems
Philip E. Wannamaker, James E Faulds, B. Mack Kennedy, Virginie Maris, Drew L. Siler, Craig Ulrich, Joseph Moore
2019, Conference Paper, Proceedings, 44nd Workshop on Geothermal Reservoir Engineering
We applied magnetotellurics (MT), diagnostic structural affiliations, soil gas flux, and fluid geochemistry to assist in identifying hidden, high-enthalpy geothermal systems in extensional regimes of the U.S. Great Basin. We are specifically looking for high-angle, low-resistivity zones and dilatant geologic structures that can carry fluids from magmatic or high-grade metamorphic...
Evidence for a duplicated mitochondrial region in Audubon’s shearwater based on MinION sequencing
Lucas Torres, Andreanna J. Welch, Catherine Zanchetta, Terry Chesser, Maxime Manno, Cecile Donnadieu, Vincent Bretagnolle, Eric Pante
2019, Mitochondrial DNA Part A (30) 256-263
Mitochondrial genetic markers have been extensively used to study the phylogenetics and phylogeography of many birds, including seabirds of the order Procellariiformes. Evidence suggests that part of the mitochondrial genome of Procellariiformes, especially albatrosses, is duplicated, but no DNA fragment covering the entire duplication has been sequenced. We sequenced the...
Practical tips to establish an actionable science portfolio for climate adaptation
Gustavo A. Bisbal
2019, Science and Public Policy (46) 148-153
The delivery of climate adaptation science products and services to inform resource management decisions—otherwise known as actionable climate adaptation science—is the primary driver and intended outcome of the science portfolios administered within the Department of the Interior's Climate Adaptation Science Center (CASC) network in the USA. This commitment hinges on...
Louisiana black bear post-delisting monitoring: 3rd annual report
Joseph D. Clark, Maria Davidson, Robert Greco, D.M. Soileau Jr.
2019, Report
This report details population and habitat monitoring results as required for post-delisting monitoring under the US Endangered Species Act....
Microclimate influences mangrove freeze damage: Implications for range expansion in response to changing macroclimate
Michael J. Osland, Arik M. Hartmann, Richard H. Day, Michael S. Ross, Courtney T. Hall, Laura C. Feher, William Vervaeke
2019, Estuaries and Coasts (42) 1084-1096
In response to warming winter air temperatures, freeze-sensitive mangrove forests are expected to expand at the expense of freeze-tolerant salt marshes. To better anticipate and prepare for mangrove range expansion, there is a need to advance understanding of the modulating role of microclimate. Here, we synthesized hypotheses regarding the effects...
Hillslope hydrology in global change research and earth system modeling
Ying Fan, Martyn Clark, David M. Lawrence, Sean Swenson, L. E. Band, S. L. Brantley, P. D. Brooks, W. E. Dietrich, A. Flores, G. Grant, J. W. Kirchner, D. S. Mackay, J.J. McDonnell, Paul C. D. Milly, P. L. Sullivan, C. Tague, H. Ajami, N. W. Chaney, A. Hartmann, P. Hazenberg, J. McNamara, J. Pelletier, J. Perket, E. Rouholahnejad-Freund, T. Wagener, X. Zeng, E. Beighley, J. Buzan, M. Huang, B. Livneh, B. P. Mohanty, B. Nijssen, M. Safeeq, C. Shen, W. van Verseveld, J. Volk, D. Yamazaki
2019, Water Resources Research (55) 1737-1772
Earth System Models (ESMs) are essential tools for understanding and predicting global change, but they cannot explicitly resolve hillslope‐scale terrain structures that fundamentally organize water, energy, and biogeochemical stores and fluxes at subgrid scales. Here we bring together hydrologists, Critical Zone scientists, and ESM developers, to explore how hillslope structures...
Spatiotemporal remote sensing of ecosystem change and causation across Alaska
Neal J. Pastick, M. Torre Jorgenson, Scott J. Goetz, Benjamin M. Jones, Bruce K. Wylie, Burke J. Minsley, Hélène Genet, Joseph F. Knight, David K. Swanson, Janet C. Jorgenson
2019, Global Change Biology (25) 1171-1189
Contemporary climate change in Alaska has resulted in amplified rates of press and pulse disturbances that drive ecosystem change with significant consequences for socio‐environmental systems. Despite the vulnerability of Arctic and boreal landscapes to change, little has been done to characterize landscape change and associated drivers across northern high‐latitude ecosystems....
Prediction of ice‐free conditions for a perennially ice‐covered Antarctic lake
Maciej Obryk, P. T. Doran, J. C. Priscu
2019, Journal of Geophysical Research F: Earth Surface (124) 686-694
Although perennially ice‐covered Antarctic lakes have experienced variable ice thicknesses over the past several decades, future ice thickness trends and associated aquatic biological responses under projected global warming remain unknown. Heat stored in the water column in chemically stratified Antarctic lakes that have middepth temperature maxima can significantly influence the...
An improved mechanical owl for efficient capture of nesting raptors
Meghan K. Jensen, Shanti D. Hamburg, Christopher T. Rota, David F. Brinker, Dustin L. Coles, Mark A. Manske, Vincent A. Slabe, Matthew J. Stuber, Amy B. Welsh, Todd E. Katzner
2019, Journal of Raptor Research (53) 14-25
Scientific study of raptors often requires the use of a lure to capture individuals for marking or collecting various data and samples. Live lure owls in the genus Bubo are commonly used with mist nets or dho-gazas to trap nesting raptors, but the use of these live lures presents ethical, logistical, and...
Genetic and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa
Lynde L. Dodd, Nancy B. Rybicki, Ryan Thum, Yasuro Kadono, Kadiera Searfoss Ingram
2019, Technical Report ERDC/EL TR-19-3
This Special Report (SR) outlines preliminary work conducted under the Aquatic Plant Control Research Program (APCRP) to investigate genetic and morphological differences of Trapa taxa (water chestnut) in the Northeastern (NE) US. Comparisons of morphological characteristics and genetics were made between Trapa populations from the native region of Eurasia...
A constant slip rate for the western Qilian Shan frontal thrust during the last 200 ka consistent with GPS-derived and geological shortening rates
Ralf Hetzel, Andrea Hampel, Pia Gebbeken, Qiang Xu, Ryan D. Gold
2019, Earth and Planetary Science Letters (509) 100-113
Active thrust faulting at the front of the Qilian Shan accommodates the northeastward growth of the Tibetan Plateau, however, the lifespan of individual faults and their slip history on different timescales remain largely unknown. Here, we show that the main range-bounding thrust fault of the western Qilian Shan has accrued...
Factors influencing anuran wetland occupancy in an agricultural landscape
Jennifer E. Swanson, Clay Pierce, Stephen J. Dinsmore, Kelly L. Smalling, Mark W. Vandever, Timothy W. Stewart, Erin L. Muths
2019, Herpetologica (75) 47-56
Habitat disturbance is an important cause of global amphibian declines, with especially strong effects in areas of high agricultural use. Determining the influence of site characteristics on amphibian presence and success is vital to developing effective conservation strategies. We used occupancy analysis to estimate presence of four anuran species at...
Fish growth changes over time in a Midwestern U.S. lake
Clay Pierce
2019, Transactions of the American Fisheries Society (148) 493-506
Growth of Walleyes Sander vitreus, Yellow Bass Morone mississippiensis, Common Carp Cyprinus carpio, and Black Bullheads Ameiurus melas was assessed in Clear Lake, Iowa, over several decades and in relation to environmental variables. Growth of Common Carp was positively correlated with phytoplankton concentration. Recent Black Bullhead growth was faster than...
Role of recovering river herring population on smallmouth bass diet and growth
Jonathan M. Watson, Stephen M. Coghlan Jr., Joseph D. Zydlewski, Daniel B. Hayes, Daniel S. Stich
2019, Book chapter, Managing centrarchid fisheries in rivers and streams
Fish assemblages in Atlantic coastal rivers have undergone extensive ecological change in the last two and a half centuries due to human influence, including extirpation of many migratory fish species, such as river herring (Alosa spp.) and introduction of nonnative piscivores, notably Smallmouth Bass Micropterus dolomieu. Recently, dam removals and...
Activity patterns of bats during the fall and spring along ridgelines in the central Appalachians
Michael S. Muthersbaugh, W. Mark Ford, Karen E. Powers
2019, Journal of Fish and Wildlife Management (10) 180-195
Many central Appalachian ridges offer high wind potential, making them attractive to future wind-energy development. Understanding seasonal and hourly activity patterns of migratory bat species may help to reduce fatalities at wind-energy facilities and provide guidance for the development of best management practices for bats....
Mapping the lava deltas of the 2018 eruption of Kīlauea Volcano
S. Adam Soule, Erin Heffron, Lindsay Gee, Larry Mayer, Nicole A. Raineault, Christopher R German, Darlene Lim, Michael H. Zoeller, Carolyn Parcheta
2019, Oceanography (32) 46-47
No abstract available....
Deep search: Deep sea exploration to advance research on coral/canyon/cold seep habitats
Erik E. Cordes, Amanda W.J. Demopoulos, Michael Rasser, Caitlin Adams
2019, Oceanography (32) 104-105
Led by the Bureau of Ocean Energy Management (BOEM), the United States Geological Survey (USGS), and OER is an interagency partnership to explore and characterize sensitive deepwater habitats of the U.S. mid- and south Atlantic deep-sea habitats. Sponsored by the National Oceanographic Partnership Program, the study has brought together scientists...
Dropstones in lacustrine sediments as a record of snow avalanches - A validation of the proxy by combining satellite imagery and varve chronology at Kenai Lake (south-central Alaska)
Sien Thys, Maarten Van Daele, Nore Praet, Britta J.L. Jensen, Thomas Van Dyck, Peter J. Haeussler, Elke Vandekerkhove, Veerle Cnudde, Marc De Batist
2019, Quaternary Geochronology (2)
Snow avalanches cause many fatalities every year and damage local economies worldwide. The present-day climate change affects the snowpack and, thus, the properties and frequency of snow avalanches. Reconstructing snow avalanche records can help us understand past variations in avalanche frequency and their relationship to climate change. Previous avalanche records...
Strontium residual salt analyses (SrRSA) and geochemistry of Bakken Formation core samples from Fleckten 1-20, North Dakota
Zell E. Peterman, Kiyoto Futa, Thomas Oliver
2019, Mountain Geologist (56) 5-17
Samples of Bakken Formation core from the Fleckton 1-20 well in Ward County, North Dakota, were analyzed using the Strontium Residual Salt Analysis (SrRSA) method to assess pore-water communication among the upper, middle, and lower sections of the unit by analyzing 87Sr/86Sr in pore-water salts leached from the core. Major and...
