Evaluating detection and monitoring tools for incipient and relictual non-native ungulate populations
Seth W. Judge, Steve C. Hess, Jonathan K.J. Faford, Dexter Pacheco, Christina R. Leopold, Colleen Cole, Veronica Deguzman
2016, Technical Report HCSU-069
Hawai‘i Volcanoes National Park (HAVO) encompasses 1,308 km2 on Hawai‘i Island. The park harbors endemic plants and animals which are threatened by a variety of invasive species. Introduced ungulates have caused sharp declines of numerous endemic species and have converted ecosystems to novel grazing systems in many cases. Local ranchers...
Alpine and Subalpine
Erin L. Muths
Lawrence L. C. Jones, Kenneth J. Halama, Robert E. Lovich, editor(s)
2016, Book chapter, Habitat Management Guidelines for Amphibians and Reptiles of the Southwestern United States
No abstract available. ...
Water quality and hydrology of Silver Lake, Oceana County, Michigan, with emphasis on lake response to nutrient loading
Angela K. Brennan, Christopher J. Hoard, Joseph W. Duris, Mary E. Ogdahl, Alan D. Steinman
2016, Scientific Investigations Report 2015-5158
Executive Summary Silver Lake is a 672-acre inland lake located in Oceana County, Michigan, and is a major tourist destination due to its proximity to Lake Michigan and the surrounding outdoor recreational opportunities. In recent years, Silver Lake exhibited patterns of high phosphorus concentrations, elevated chlorophyll a concentrations, and nuisance algal...
Potentiometric surfaces of the Arnold Engineering Development Complex Area, Arnold Air Force Base, Tennessee, May and September 2011
Connor J. Haugh, John A. Robinson
2016, Scientific Investigations Report 2015-5165
Arnold Air Force Base occupies about 40,000 acres in Coffee and Franklin Counties, Tennessee. The primary mission of Arnold Air Force Base is to provide risk-reduction information in the development of aerospace products through test and evaluation. This mission is achieved in part through test facilities at Arnold Engineering Development...
Innovation in monitoring: The U.S. Geological Survey Sacramento–San Joaquin River Delta, California, flow-station network
Jon Burau, Cathy Ruhl, Paul A. Work
2016, Fact Sheet 2015-3061
The U.S. Geological Survey (USGS) installed the first gage to measure the flow of water into California’s Sacramento–San Joaquin River Delta from the Sacramento River in the late 1800s. Today, a network of 35 hydro-acoustic meters measure flow throughout the delta. This region is a critical part of California’s freshwater...
The Lassen hydrothermal system
Steven E. Ingebritsen, Deborah Bergfeld, Laura Clor, William C. Evans
2016, American Mineralogist (101) 343-354
The active Lassen hydrothermal system includes a central vapor-dominated zone or zones beneath the Lassen highlands underlain by ~240 °C high-chloride waters that discharge at lower elevations. It is the best-exposed and largest hydrothermal system in the Cascade Range, discharging 41 ± 10 kg/s of steam (~115 MW) and 23...
Wood decay in desert riverine environments
Douglas Andersen, Craig A. Stricker, S. Mark Nelson
2016, Forest Ecology and Management (365) 83-95
Floodplain forests and the woody debris they produce are major components of riverine ecosystems in many arid and semiarid regions (drylands). We monitored breakdown and nitrogen dynamics in wood and bark from a native riparian tree, Fremont cottonwood (Populus deltoides subsp. wislizeni), along four North American desert streams. We placed locally-obtained, fresh,...
Comment on "Worldwide evidence of a unimodal relationship between productivity and plant species richness"
Andrew T. Tredennick, Peter B. Adler, James B. Grace, W Stanley Harpole, Elizabeth T. Borer, Eric W. Seabloom, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia S. Brown, Yvonne M. Buckley, Cheng-Jin Chu, Scott L. Collins, Michael J. Crawley, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Yann Hautier, Andy Hector, Helmut Hillebrand, Kevin P. Kirkman, Johannes M. H. Knops, Ramesh Laungani, Eric M. Lind, Andrew S. MacDougall, Rebecca L. McCulley, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Pablo L. Peri, Suzanne M. Prober, Anita C. Risch, Martin Schuetz, Karina L. Speziale, Rachel J. Standish, Lauren L. Sullivan, Glenda M. Wardle, Ryan J. Williams, Louie H. Yang
2016, Science (351) 457-a
Fraser et al. (Reports, 17 July 2015, p. 302) report a unimodal relationship between productivity and species richness at regional and global scales, which they contrast with the results of Adler et al. (Reports, 23 September 2011, p. 1750). However, both data sets, when analyzed correctly, show clearly and consistently...
Geochemical characterization and dating of R tephra, a post-glacial marker bed in Mount Rainier National Park, Washington, U.S.A.
Mary Samolczyk, James W. Vallance, Joel Cubley, Gerald Osborn, Douglas H. Clark
2016, Canadian Journal of Earth Sciences (53) 202-217
The oldest postglacial lapilli–ash tephra recognized in sedimentary records surrounding Mount Rainier (Washington State, USA) is R tephra, a very early Holocene deposit that acts as an important stratigraphic and geochronologic marker bed. This multidisciplinary study incorporates tephrostratigraphy, radiocarbon dating, petrography, and electron microprobe analysis to characterize R tephra. Tephra...
The Integrated Landscape Modeling partnership - Current status and future directions
David M. Mushet, Eric J. Scherff
2016, Open-File Report 2016-1006
The Integrated Landscape Modeling (ILM) partnership is an effort by the U.S. Geological Survey (USGS) and U.S. Department of Agriculture (USDA) to identify, evaluate, and develop models to quantify services derived from ecosystems, with a focus on wetland ecosystems and conservation effects. The ILM partnership uses the Integrated Valuation of...
A multidimensional representation model of geographic features
E. Lynn Usery, George Timson, Mark Coletti
2016, Open-File Report 2015-1241
A multidimensional model of geographic features has been developed and implemented with data from The National Map of the U.S. Geological Survey. The model, programmed in C++ and implemented as a feature library, was tested with data from the National Hydrography Dataset demonstrating the capability to handle changes in feature...
Spatial and temporal variation in positioning probability of acoustic telemetry arrays: Fine-scale variability and complex interactions
Thomas Binder, Christopher Holbrook, Todd A. Hayden, Charles C. Krueger
2016, Animal Biotelemetry (4)
Background As popularity of positional acoustic telemetry systems increases, so does the need to better understand how they perform in real-world applications, where variation in performance can bias study conclusions. Studies assessing variability in positional telemetry system performance have focused primarily on position accuracy, or comparing...
Will it rise or will it fall? Managing the complex effects of urbanization on base flow
Aditi Bhaskar, Leah Beesley, Matthew J. Burns, T. D. Fletcher, Perrine Hamel, Carolyn Oldham, Allison H. Roy
2016, Freshwater Science (35) 293-310
Sustaining natural levels of base flow is critical to maintaining ecological function as stream catchments are urbanized. Research shows a variable response of stream base flow to urbanization, with base flow or water tables rising in some locations, falling in others, or elsewhere remaining constant. The variable baseflow response is...
USGS National Wildlife Health Center quarterly wildlife mortality report July 2015 to September 2015
Anne Ballmann, Barbara L. Bodenstein, Robert J. Dusek, Daniel A. Grear, Jennifer G. Chipault, Michelle Magagna
2016, Wildlife Disease Association Newsletter 3-5
No abstract available....
Hyperspectral narrowband and multispectral broadband indices for remote sensing of crop evapotranspiration and its components (transpiration and soil evaporation)
Michael T. Marshall, Prasad S. Thenkabail, Trent Biggs, Kirk Post
2016, Agricultural and Forest Meteorology (218-219) 122-134
Evapotranspiration (ET) is an important component of micro- and macro-scale climatic processes. In agriculture, estimates of ET are frequently used to monitor droughts, schedule irrigation, and assess crop water productivity over large areas. Currently, in situ measurements of ET are difficult to scale up for regional applications, so remote sensing...
Inhibition of Akt enhances the chemopreventive effects of topical rapamycin in mouse skin
Sally E Dickinson, Jaroslav Janda, Jane Criswell, Karen Blohm-Mangone, Erik R. Olson, Zhonglin Liu, Christie Barber, Jadrian J. Rusche, Emmanuel Petricoin III, Valerie Calvert, Janine G. Einspahr, Jesse E. Dickinson, Steven P. Stratton, Clara Curiel-Lewandrowski, Kathylynn Saboda, Chengcheng Hu, Ann M. Bode, Zigang Dong, David S. Alberts, G. Timothy Bowden
2016, Cancer Prevention Research (9) 215-224
The PI3Kinase/Akt/mTOR pathway has important roles in cancer development for multiple tumor types, including UV-induced non-melanoma skin cancer. Immunosuppressed populations are at increased risk of aggressive cutaneous squamous cell carcinoma (SCC). Individuals who are treated with rapamycin, (sirolimus, a classical mTOR inhibitor) have significantly decreased rates of developing new cutaneous...
Elevational speciation in action? Restricted gene flow associated with adaptive divergence across an altitudinal gradient
W. C. Funk, M.A. Murphy, K. L. Hoke, Erin L. Muths, Staci M. Amburgey, Emily M. Lemmon, A. R. Lemmon
2016, Journal of Evolutionary Biology (29) 241-252
Evolutionary theory predicts that divergent selection pressures across elevational gradients could cause adaptive divergence and reproductive isolation in the process of ecological speciation. Although there is substantial evidence for adaptive divergence across elevation, there is less evidence that this restricts gene flow. Previous work in the boreal chorus frog (Pseudacris...
Survival, movement, and health of hatchery-raised juvenile Lost River suckers within a mesocosm in Upper Klamath Lake, Oregon
Danielle M. Hereford, Summer M. Burdick, Diane G. Elliott, Amari Dolan-Caret, Carla M. Conway, Alta C. Harris
2016, Open-File Report 2016-1012
The recovery of endangered Lost River suckers (Deltistes luxatus) in Upper Klamath Lake is limited by poor juvenile survival and failure to recruit into the adult population. Poor water quality, degradation of rearing habitat, and toxic levels of microcystin are hypothesized to contribute to low juvenile survival. Studies of wild...
Surface-water quality and suspended-sediment quantity and quality within the Big River Basin, southeastern Missouri, 2011-13
Miya N. Barr
2016, Scientific Investigations Report 2015-5171
Missouri was the leading producer of lead in the United States—as well as the world—for more than a century. One of the lead sources is known as the Old Lead Belt, located in southeast Missouri. The primary ore mineral in the region is galena, which can be found both in...
Compilation of VS30 Data for the United States
Alan Yong, Eric M. Thompson, David J. Wald, Keith L. Knudsen, Jack K. Odum, William J. Stephenson, Scott Haefner
2016, Data Series 978
VS30, the time-averaged shear-wave velocity (VS) to a depth of 30 meters, is a key index adopted by the earthquake engineering community to account for seismic site conditions. VS30 is typically based on geophysical measurements of VS derived from invasive and noninvasive techniques at sites of interest. Owing to cost considerations, as well as...
A submarine landslide source for the devastating 1964 Chenega tsunami, southern Alaska
Daniel S. Brothers, Peter J. Haeussler, Lee Liberty, David Finlayson, Eric L. Geist, Keith A. Labay, Michael Byerly
2016, Earth and Planetary Science Letters (438) 112-121
During the 1964 Great Alaska earthquake (Mw 9.2), several fjords, straits, and bays throughout southern Alaska experienced significant tsunami runup of localized, but unexplained origin. Dangerous Passage is a glacimarine fjord in western Prince William Sound, which experienced a tsunami that devastated the village of...
Late Paleocene glyptosaur (Reptilia: Anguidae) osteoderms from South Carolina, USA
David J. Cicimurri, James L. Knight, Jean Self-Trail, Sandy M. Ebersole
2016, Journal of Paleontology (90) 147-153
Heavily tuberculated glyptosaur osteoderms were collected in an active limestone quarry in northern Berkeley County, South Carolina. The osteoderms are part of a highly diverse late Paleocene vertebrate assemblage that consists of marine, terrestrial, fluvial, and/or brackish water taxa, including chondrichthyan and osteichthyan fish, turtles (chelonioid, trionychid, pelomedusid, emydid), crocodilians,...
Apatite fission-track evidence for regional exhumation in the subtropical Eocene, block faulting, and localized fluid flow in east-central Alaska
Cynthia Dusel-Bacon, Charles R. Bacon, Paul B. O'Sullivan, Warren C. Day
2016, Canadian Journal of Earth Sciences (53) 260-280
The origin and antiquity of the subdued topography of the Yukon–Tanana Upland (YTU), the physiographic province between the Denali and Tintina faults, are unresolved questions in the geologic history of interior Alaska and adjacent Yukon. We present apatite fission-track (AFT) results for 33 samples from the 2300 km2 western Fortymile...
Functional metagenomic selection of RubisCOs from uncultivated bacteria
Vanessa A Varaljay, Sriram Satagopan, Justin A. North, Briana Witteveen, Manuella N. Dourado, Karthik Anantharaman, Mark A. Arbing, Shelley McCann, Ronald S. Oremland, Jillian F. Banfield, Kelly C. Wrighton, F. Robert Tabita
2016, Environmental Microbiology (18) 1187-1199
Ribulose 1,5-bisphosphate carboxylase/oxygenase (RubisCO) is a critical yet severely inefficient enzyme that catalyses the fixation of virtually all of the carbon found on Earth. Here, we report a functional metagenomic selection that recovers physiologically active RubisCO molecules directly from uncultivated and largely unknown members of natural microbial communities. Selection is...
Multiple rod–cone and cone–rod photoreceptor transmutations in snakes: Evidence from visual opsin gene expression
Bruno F Simoe, Filipa L. Sampaio, Ellis R. Loew, Kate L. Sanders, Robert N. Fisher, Nathan S. Hart, David M. Hunt, Julian C. Partridge, David J. Gower
2016, Proceedings of the Royal Society B (283)
In 1934, Gordon Walls forwarded his radical theory of retinal photoreceptor ‘transmutation’. This proposed that rods and cones used for scotopic and photopic vision, respectively, were not fixed but could evolve into each other via a series of morphologically distinguishable intermediates. Walls' prime evidence came from series of diurnal and...
