Is white-nose syndrome causing insectivory release and altering ecosystem function in the eastern US?
W. Mark Ford, David S. Jachowski, Cahterine M.B. Jachowski
2014, Bat Research News (55) 21-24
No abstract available....
Using dissolved organic matter age and composition to detect permafrost thaw in boreal watersheds of interior Alaska
Jonathan A. O’Donnell, George R. Aiken, Michelle Ann Walvoord, Peter A. Raymond, Kenna D. Butler, Mark M. Dornblaser, Katherine Heckman
2014, Journal of Geophysical Research: Biogeosciences (119) 2155-2170
Recent warming at high latitudes has accelerated permafrost thaw, which can modify soil carbon dynamics and watershed hydrology. The flux and composition of dissolved organic matter (DOM) from soils to rivers are sensitive to permafrost configuration and its impact on subsurface hydrology and groundwater discharge. Here, we evaluate the utility...
Multisystem dating of modern river detritus from Tajikistan and China: Implications for crustal evolution and exhumation of the Pamir
Barbara Carappa, F.S. Mustapha, Michael A. Cosca, George E. Gehrels, L Schoenbhohm, E. Sobel, DeCelles.P., Joellen Russell, Paul Goodman
2014, Lithosphere (6) 443-455
The Pamir is the western continuation of Tibet and the site of some of the highest mountains on Earth, yet comparatively little is known about its crustal and tectonic evolution and erosional history. Both Tibet and the Pamir are characterized by similar terranes and sutures that can be correlated along...
Quaternary geology of the Boston area: Glacial events from Lake Charles to Lake Aberjona
Byron D. Stone, John W. Lane Jr.
2014, Book chapter, 2014 Guidebook for Field Trips in Southeastern New England
The multiple-glacial and glaciomarine Quaternary history of the Boston, Massachusetts area has been known generally since the earliest studies of the then newly recognized glacial deposits described by Prof. Louis Agassiz in the late1840’s and fossil marine shells in the drift in the 1850’s. Attention then turned to possible glacial...
Micro-seismicity and seismic moment release within the Coso Geothermal Field, California
J. Ole Kaven, Stephen H. Hickman, Nicholas C. Davatzes
2014, Conference Paper, Proceedings, Thirty-Ninth Workshop on Geothermal Reservoir Engineering
We relocate 16 years of seismicity in the Coso Geothermal Field (CGF) using differential travel times and simultaneously invert for seismic velocities to improve our knowledge of the subsurface geologic and hydrologic structure. We expand on our previous results by doubling the number of relocated events from April 1996 through...
Can managers compensate for coyote predation of white-tailed deer?
Kelly F. Robinson, Duane R. Diefenbach, Angela K. Fuller, Jeremy E. Hurst, Christopher S. Rosenberry
2014, Journal of Wildlife Management (78) 571-579
Many studies have documented that coyotes (Canis latrans) are the greatest source of natural mortality for white-tailed deer (Odocoileus virginianus) neonates (<3 months old). With the range expansion of coyotes eastward in North America, many stakeholders are concerned that coyote predation may be affecting deer populations adversely. We hypothesized that...
Understanding how lake populations of arctic char are structured and function with special consideration of the potential effects of climate change: A multi-faceted approach.
Phaedra E. Budy, Chris Luecke
2014, Oecologia (176) 81-94
Size dimorphism in fish populations, both its causes and consequences, has been an area of considerable focus; however, uncertainty remains whether size dimorphism is dynamic or stabilizing and about the role of exogenous factors. Here, we explored patterns among empirical vital rates, population structure, abundance and trend, and predicted the...
Instream habitat restoration and stream temperature reduction in a whirling disease-positive Spring Creek in the Blackfoot River Basin, Montana
Ron Pierce, Craig Podner, Laurie B Marczak, Leslie A. Jones
2014, Transactions of the American Fisheries Society (143) 1188-1198
Anthropogenic warming of stream temperature and the presence of exotic diseases such as whirling disease are both contemporary threats to coldwater salmonids across western North America. We examined stream temperature reduction over a 15-year prerestoration and postrestoration period and the severity of Myxobolus cerebralisinfection (agent of whirling disease) over a 7-year...
Growth and survival of Apache Trout under static and fluctuating temperature regimes
Matthew S. Recsetar, Scott A. Bonar, Olin Feuerbacher
2014, Transactions of the American Fisheries Society (143) 1247-1254
Increasing stream temperatures have important implications for arid-region fishes. Little is known about effects of high water temperatures that fluctuate over extended periods on Apache Trout Oncorhynchus gilae apache, a federally threatened species of southwestern USA streams. We compared survival and growth of juvenile Apache Trout held for 30 d in...
Lateritic, supergene rare earth element (REE) deposits
Mark D. Cocker
2014, Conference Paper, Arizona Geological Survey Special Paper 9
Intensive lateritic weathering of bedrock under tropical or sub-tropical climatic conditions can form a variety of secondary, supergene-type deposits. These secondary deposits may range in composition from aluminous bauxites to iron and niobium, and include rare earth elements (REE). Over 250 lateritic deposits of REE are currently known and many...
A versatile technique for capturing urban gulls during winter
Daniel E. Clark, Kiana K. G. Koenen, Kenneth G. MacKenzie, Jillian W. Pereira, Stephen DeStefano
2014, Wildlife Society Bulletin (38) 605-610
The capture of birds is a common part of many avian studies but often requires large investments of time and resources. We developed a novel technique for capturing gulls during the non-breeding season using a net launcher that was effective and efficient. The technique can be used in a variety...
Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers
Tyler Wagner, Jefferson Tyrell DeWeber, Yin-Phan Tsang, Damon Krueger, Joanna B. Whittier, Dana M. Infante, Gary Whelan
2014, Fisheries (39) 155-163
Flow and water temperature are fundamental properties of stream ecosystems upon which many freshwater resource management decisions are based. U.S. Geological Survey (USGS) gages are the most important source of streamflow and water temperature data available nationwide, but the degree to which gages represent landscape attributes of the larger population...
Call broadcasting and automated recorders as tools for anuran surveys in a subarctic tundra landscape
R. Nicholas Mannan, Gad Perry, David E. Andersen, Clint W. Boal
2014, The Journal of North American Herpetology (1) 47-52
Relatively little is known about population ecology of anurans in arctic and subarctic tundra regions, in part because it is difficult to survey anurans in these landscapes. Anuran survey protocols developed for temperate regions have limited applicability in arctic and subarctic tundra landscapes, which may lack roads and vehicle access,...
Reanalysis of historical U.S. Geological Survey sediment samples for geochemical data from the western part of the Wrangellia terrane, Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles, Alaska
Melanie B. Werdon, Jaime S. Azain, Matthew Granitto
2014, Report
The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and...
A new species of in the Rhyacophila vagrita group (Trichoptera: Rhyacophilidae) from Olympic National Park, Washington, USA.
Jonathan J Lee, J. Joseph Giersch
2014, Pan-Pacific Entomologist (90) 53-56
Rhyacophila vagrita Milne, 1936 was described from specimens collected in British Columbia and Alberta, Canada. Ross (1950), while examining R. vagrita paratypes from Alberta, discovered four males that did not fi t the R. vagrita description. These he described and named R. milnei Ross, 1950. Ross (1956) established the R....
Auroral omens of the American Civil War
Jeffrey J. Love
2014, Weatherwise (67) 34-41
Aurorae are a splendid night-time sight: coruscations of green, purple, and red fluorescent light in the form of gently wafting ribbons, billowing curtains, and flashing rays. Mostly seen at high latitudes, in the north aurorae are often called the northern lights or aurora borealis, and, in the south, the southern...
Volcanoes of the passive margin: The youngest magmatic event in eastern North America
Sarah E Mazza, Esteban Gazel, Elizabeth A Johnson, Michael J. Kunk, Ryan J. McAleer, James A Spotila, Michael Bizimis, Drew S Coleman
2014, Geology (42) 483-486
The rifted eastern North American margin (ENAM) provides important clues to the long-term evolution of continental margins. An Eocene volcanic swarm exposed in the Appalachian Valley and Ridge Province of Virginia and West Virginia (USA) contains the youngest known igneous rocks in the ENAM. These magmas provide the only window...
Comparison of fishes in nearshore areas of the St. Lawrence River, New York over 35 years
Douglas M. Carlson, James E. McKenna Jr.
2014, NYSDEC Lake Ontario Annual Report 2013-21
Fishes of the nearshore waters of the St. Lawrence River provide forage for valuable sport fisheries and are important biological indicators of condition and change. This fish community differs slightly among various reaches of the St. Lawrence River from New York to Quebec (Carlson et al. 2006, Eckert and Hanlon...
Paleoclimate
Patrick J. Bartlein, Steven W. Hostetler, Jay R. Alder
G. Ohring, editor(s)
2014, Book chapter, Climate Change in North America
As host to one of the major continental-scale ice sheets, and with considerable spatial variability of climate related to its physiography and location, North America has experienced a wide range of climates over time. The aim of this chapter is to review the history of those climate variations, focusing in...
Preslip and cascade processes initiating laboratory stick slip
Gregory C. McLaskey, David A. Lockner
2014, Journal of Geophysical Research B: Solid Earth (119) 6323-6336
Recent modeling studies have explored whether earthquakes begin with a large aseismic nucleation process or initiate dynamically from the rapid growth of a smaller instability in a “cascade-up” process. To explore such a case in the laboratory, we study the initiation of dynamic rupture (stick slip) of a smooth saw-cut...
Chemical mixtures in potable water in the U.S.
Sarah J. Ryker
2014, Book chapter, Comprehensive water quality and purification
In recent years, regulators have devoted increasing attention to health risks from exposure to multiple chemicals. In 1996, the US Congress directed the US Environmental Protection Agency (EPA) to study mixtures of chemicals in drinking water, with a particular focus on potential interactions affecting chemicals' joint toxicity. The task is...
Magmatism, metasomatism, tectonism, and mineralization in the Humboldt Range, Pershing County, Nevada
Peter G. Vikre
2014, Book
Introduction The Humboldt Range, Pershing County, Nevada, predominantly consists of Mesozoic igneous and sedimentary rocks that were modified several times by magmatism, metasomatism, and tectonism, and contain a variety of metallic (Ag, Au, Pb, Zn, Sb, W, Hg) and non-metallic (dumortierite, pinite, fluorite) mineral deposits (Knopf, 1924; Kerr and Jenney,...
The environmental and medical geochemistry of potentially hazardous materials produced by disasters
Geoffrey S. Plumlee, Suzette A. Morman, G.P. Meeker, Todd M. Hoefen, Philip L. Hageman, Ruth E. Wolf
2014, Book chapter, Treatise on Geochemistry
Many natural or human-caused disasters release potentially hazardous materials (HM) that may pose threats to the environment and health of exposed humans, wildlife, and livestock. This chapter summarizes the environmentally and toxicologically significant physical, mineralogical, and geochemical characteristics of materials produced by a wide variety of recent disasters, such as...
A review of pipe and bamboo artificial refugia as sampling tools in anuran studies
Brad M. Glorioso, J. Hardin Waddle
2014, Herpetological Conservation and Biology (9) 609-625
Artificial pipe-like refugia have been used for more than 40 years in anuran studies, and have captured 28 species, primarily (82%) hylid treefrogs. Early pipe-like refugia were made using cut pieces of bamboo in the tropical forests of Puerto Rico, but most recent studies have used synthetic pipes and have...
A large mantle water source for the northern San Andreas Fault System: A ghost of subduction past
Stephen H. Kirby, Kelin Wang, Thomas M. Brocher
2014, Earth, Planets and Space (66-67)
Recent research indicates that the shallow mantle of the Cascadia subduction margin under near-coastal Pacific Northwest U.S. is cold and partially serpentinized, storing large quantities of water in this wedge-shaped region. Such a wedge probably formed to the south in California during an earlier period of subduction. We show by...
