Are we working towards global research priorities for management and conservation of sea turtles?
A.F. Rees, J. Alfaro-Shigueto, P.C.R. Barata, K.A. Bjorndal, A.B. Bolten, J. Bourjea, A.C. Broderick, L.M. Campbell, L. Cardona, C. Carreras, P. Casale, S.A. Ceriani, P.H. Dutton, T. Eguchi, A. Formia, M.M.P.B. Fuentes, W.J. Fuller, M. Girondot, M.H. Godfrey, M. Hamann, Kristen M. Hart, G.C. Hays, S. Hochscheid, Y. Kaska, M.P. Jensen, J.C. Mangel, J.A. Mortimer, E. Naro-Maciel, C.K.Y. Ng, W.J. Nichols, A.D. Phillott, R.D. Reina, O. Revuelta, G. Schofield, J.A. Seminoff, K. Shanker, J. Tomas, van de Merwe, K.S. Van Houtan, H.B. Vander Zanden, B.P. Wallace, K.R. Wedemeyer-Strombel, Thierry M. Work, B.J. Godley
2016, Endangered Species Research (31) 337-382
In 2010, an international group of 35 sea turtle researchers refined an initial list of more than 200 research questions into 20 metaquestions that were considered key for management and conservation of sea turtles. These were classified under 5 categories: reproductive biology, biogeography, population ecology, threats and conservation strategies. To...
Status of groundwater levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, January 2016
Brian J. Klager
2016, Scientific Investigations Report 2016-5165
The Equus Beds aquifer in south-central Kansas, which is part of the High Plains aquifer, serves as a source of water for municipal and agricultural users in the area. The city of Wichita has used the Equus Beds aquifer as one of its primary water sources since the 1940s. The...
Discussion of “The relation between dilatancy, effective stress and dispersive pressure in granular avalanches” by P. Bartelt and O. Buser (DOI: 10.1007/s11440-016-0463-7)
Richard M. Iverson, David L. George
2016, Acta Geotechnica (11) 1465-1468
A paper recently published by Bartelt and Buser (hereafter identified as “the authors”) aims to clarify relationships between granular dilatancy and dispersive pressure and to question the effective stress principle and its application to shallow granular avalanches (Bartelt and Buser in Act Geotech 11:549–557, 2)....
Comment on “The reduction of friction in long-runout landslides as an emergent phenomenon” by Brandon C. Johnson et al.
Richard M. Iverson
2016, Journal of Geophysical Research F: Earth Surface (121) 2238-2242
Results from a highly idealized, 2-D computational model indicate that dynamic normal-stress rarefactions might cause friction reduction in long-runout landslides, but the physical relevance of the idealized dynamics has not been confirmed by experimental tests. More importantly, the model results provide no evidence that refutes alternative hypotheses about friction reduction...
Modelling landslide liquefaction, mobility bifurcation and the dynamics of the 2014 Oso disaster
Richard M. Iverson, David L. George
2016, Geotechnique (66) 175-187
Some landslides move slowly or intermittently downslope, but others liquefy during the early stages of motion, leading to runaway acceleration and high-speed runout across low-relief terrain. Mechanisms responsible for this disparate behaviour are represented in a two-phase, depth-integrated, landslide dynamics model that melds principles from soil mechanics, granular mechanics and...
Debris flow runup on vertical barriers and adverse slopes
Richard M. Iverson, David L. George, Matthew Logan
2016, Journal of Geophysical Research F: Earth Surface (121) 2333-2357
Runup of debris flows against obstacles in their paths is a complex process that involves profound flow deceleration and redirection. We investigate the dynamics and predictability of runup by comparing results from large-scale laboratory experiments, four simple analytical models, and a depth-integrated numerical model (D-Claw). The experiments and numerical simulations...
2016 Eastern Section SSA Annual Meeting Report
Thomas L. Pratt, Christine A. Goulet, Oliver S. Boyd
2016, Seismological Research Letters (88) 224-262
Report on the Eastern Section Seismological Society of America Meeting....
The Outer Banks of North Carolina
Robert Dolan, Harry F. Lins, Jodi Jones Smith
2016, Professional Paper 1827
The Outer Banks of North Carolina are excellent examples of the nearly 300 barrier islands rimming the Atlantic and Gulf coasts of the United States. These low, sandy islands are among the most dynamic natural landscapes occupied by man. Beach sands move offshore, onshore, and along the shore in the...
White-nose syndrome in North American bats - U.S. Geological Survey updates
Emily W. Lankau, Gail Moede Rogall
2016, Fact Sheet 2016-3084
White-nose syndrome is a devastating wildlife disease that has killed millions of hibernating bats. This disease first appeared in New York during 2007 and has continued to spread at an alarming rate from the northeastern to the central United States and throughout eastern Canada. The disease is named for the...
The 3D elevation program - Precision agriculture and other farm practices
Larry J. Sugarbaker, Carswell
2016, Fact Sheet 2016-3088
A founding motto of the Natural Resources Conservation Service (NRCS), originally the Soil Conservation Service (SCS), explains that “If we take care of the land, it will take care of us.” Digital elevation models (DEMs; see fig. 1) are derived from light detection and ranging (lidar) data and can be...
Linking the Central and Southern Appalachian Blue Ridge: What We Know and Don’t Know about Stratigraphy, Structure, Tectonism, and Regional Correlation in the Eastern Blue Ridge of Virginia
Mark W. Carter, Arthur J. Merschat
2016, Book chapter
The transition from Neoproterozoic Lynchburg Group rocks on the eastern limb of the para-autochthonous Blue Ridge anticlinorium in central Virginia to the fault-bounded Ashe Formation and Alligator Back Formation in southern Virginia has been a source of intense debate and speculation for decades. There are fundamental differences in the...
Designing occupancy studies when false-positive detections occur
Matthew Clement
2016, Methods in Ecology and Evolution (7) 1529-1547
1.Recently, estimators have been developed to estimate occupancy probabilities when false-positive detections occur during presence-absence surveys. Some of these estimators combine different types of survey data to improve estimates of occupancy. With these estimators, there is a tradeoff between the number of sample units surveyed, and the number and type...
Overcoming challenges to the recovery of declining amphibian populations in the United States
Susan C. Walls, Lianne C. Ball, William J. Barichivich, Kenneth Dodd, Kevin M Enge, Thomas A. Gorman, Katherine M. O’Donnell, John G Palis, Raymond D. Semlitsch
2016, BioScience
The US Endangered Species Act of 1973 (ESA) affords many potential benefits to species threatened with extinction. However, most at-risk amphibians—one of the most imperiled vertebrate groups—remain unlisted under the provisions of the ESA, and many impediments to recovery exist for those species that have been listed. Of the 35...
Comparing orbiter and rover image-based mapping of an ancient sedimentary environment, Aeolis Palus, Gale crater, Mars
Kathryn M. Stack, Christopher Edwards, J. P. Grotzinger, S. Gupta, D. Sumner, Lauren A. Edgar, A. Fraeman, S. Jacob, L. LeDeit, K.W. Lewis, M.S. Rice, D. Rubin, F. Calef, K. Edgett, R.M.E. Williams, K. H. Williford
2016, Icarus 3-21
This study provides the first systematic comparison of orbital facies maps with detailed ground-based geology observations from the Mars Science Laboratory (MSL) Curiosity rover to examine the validity of geologic interpretations derived from orbital image data. Orbital facies maps were constructed for the Darwin, Cooperstown, and Kimberley waypoints visited by...
Development of a study design and implementation plan to estimate juvenile salmon survival in Lookout Point Reservoir and other reservoirs of the Willamette Project, western Oregon
Tobias J. Kock, Russell W. Perry, Fred R. Monzyk, Adam C. Pope, John M. Plumb
2016, Open-File Report 2016-1211
Survival estimates for juvenile salmon and steelhead fry in reservoirs impounded by high head dams are coveted data by resource managers. However, this information is difficult to obtain because these fish are too small for tagging using conventional methods such as passive-integrated transponders or radio or acoustic transmitters. We developed...
Continuous-flow centrifugation to collect suspended sediment for chemical analysis
Kathleen E. Conn, Richard S. Dinicola, Robert W. Black, Stephen E. Cox, Richard W. Sheibley, James R. Foreman, Craig A. Senter, Norman T. Peterson
2016, Techniques and Methods 1-D6
Recent advances in suspended-sediment monitoring tools and surrogate technologies have greatly improved the ability to quantify suspended-sediment concentrations and to estimate daily, seasonal, and annual suspended-sediment fluxes from rivers to coastal waters. However, little is known about the chemical composition of suspended sediment, and how it may vary spatially between...
Evaluating external nutrient and suspended-sediment loads to Upper Klamath Lake, Oregon, using surrogate regressions with real-time turbidity and acoustic backscatter data
Liam N. Schenk, Chauncey W. Anderson, Paul Diaz, Marc A. Stewart
2016, Scientific Investigations Report 2016-5167
Executive SummarySuspended-sediment and total phosphorus loads were computed for two sites in the Upper Klamath Basin on the Wood and Williamson Rivers, the two main tributaries to Upper Klamath Lake. High temporal resolution turbidity and acoustic backscatter data were used to develop surrogate regression models to compute instantaneous concentrations and...
Survival of juvenile chinook salmon and coho salmon in the Roza Dam fish bypass and in downstream reaches of the Yakima River, Washington, 2016
Tobias J. Kock, Russell W. Perry, Amy C. Hansen
2016, Open-File Report 2016-1210
Estimates of juvenile salmon survival are important data for fishery managers in the Yakima River Basin. Radiotelemetry studies during 2012–14 showed that tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) that passed through the fish bypass at Roza Dam had lower survival than fish that passed through other routes at the dam....
Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp
Karl R. Anderson, Duane Chapman, Cari-Ann Hayer
2016, BioInvasions Records (5) 251-257
Silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis) are poised to invade the Laurentian Great Lakes. Zebra mussels (Dreissena polymorpha) and quagga mussels (D. rostriformis bugensis) have shifted nutrient pathways towards the benthos, partly through deposition of feces and rejected food particles called biodeposits. When biodeposit material was fed...
Sources of groundwater and characteristics of surface-water recharge at Bell, White, and Suwannee Springs, Florida, 2012–13
John F. Stamm, W. Scott McBride
2016, Open-File Report 2016-1190
Discharge from springs in Florida is sourced from aquifers, such as the Upper Floridan aquifer, which is overlain by an upper confining unit that locally can have properties of an aquifer. Water levels in aquifers are affected by several factors, such as precipitation, recharge, and groundwater withdrawals, which in turn...
Simulated effects of nitrogen saturation the global carbon budget using the IBIS model
Xuehe Lu, Hong Jiang, Jinxun Liu, Xiuying Zhang, Jiaxin Jin, Qiuan Zhu, Zhen Zhang, Changhui Peng
2016, Scientific Reports (6) 1-10
Over the past 100 years, human activity has greatly changed the rate of atmospheric N (nitrogen) deposition in terrestrial ecosystems, resulting in N saturation in some regions of the world. The contribution of N saturation to the global carbon budget remains uncertain due to the complicated nature of C-N (carbon-nitrogen)...
Quantifying the effects of research band resighting activities on staging terns in comparison to other disturbances
Melissa Althouse, Jonathan B. Cohen, Jeffrey A. Spendelow, Sarah M. Karpanty, Kayla L. Davis, Katharine C. Parsons, Cristin F. Luttazi
2016, Waterbirds (39) 417-421
Avian research that involves potential disturbance to the study species may have unintended fitness consequences and could lead to biases in measurements of interest. The effects of band resighting on the behavior of mixed-species flocks of staging waterbirds were evaluated against recreational pedestrian activity that was expected to cause flushing....
Feline immunodeficiency virus cross-species transmission: Implications for emergence of new lentiviral infections
Justin Lee, Jennifer L. Malmberg, Britta A. Wood, Sahaja Hladky, Ryan Troyer, Melody Roelke, Mark W. Cunningham, Roy McBride, Winston Vickers, Walter Boyce, Erin E. Boydston, Laurel E.K. Serieys, Seth P.D. Riley, Kevin R. Crooks, Sue VandeWoude
2016, Journal of Virology (91)
Owing to a complex history of host-parasite coevolution, lentiviruses exhibit a high degree of species specificity. Given the well-documented viral archeology of HIV emergence following human exposures to SIV, understanding processes that promote successful cross-species lentiviral transmissions is highly relevant. We have previously reported natural cross-species...
Space use and habitat selection by resident and transient red wolves (Canis rufus)
Joseph W. Hinton, Christine Proctor, Marcella J. Kelly, Frank T. van Manen, Michael R. Vaughan, Michael J. Chamberlain
2016, PLoS ONE (11)
Recovery of large carnivores remains a challenge because complex spatial dynamics that facilitate population persistence are poorly understood. In particular, recovery of the critically endangered red wolf (Canis rufus) has been challenging because of its vulnerability to extinction via human-caused mortality and hybridization with coyotes (Canis latrans). Therefore,...
Ambient water quality in aquifers used for drinking-water supplies, Gem County, southwestern Idaho, 2015
James R. Bartolino, Candice B. Hopkins
2016, Scientific Investigations Report 2016-5170
In recent years, the rapid population growth in Gem County, Idaho, has been similar to other counties in southwestern Idaho, increasing about 54 percent from 1990 to 2015. Because the entire population of the study area depends on groundwater for drinking water supply (either from self-supplied domestic, community, or municipal-supply...
