Geologic map of the Gass Peak SW quadrangle, Clark County, Nevada
Alan R. Ramelli, William R. Page, Craig R. Manker, Kathleen B. Springer
2011, Map 175
No abstract available....
Atomic weights: No longer constants of nature
Tyler B. Coplen, Norman E. Holden
2011, Chemistry International (33) 10-15
Many of us were taught that the standard atomic weights we found in the back of our chemistry textbooks or on the Periodic Table of the Chemical Elements hanging on the wall of our chemistry classroom are constants of nature. This was common knowledge for more than a century and...
Guidelines and recommended terms for expression of stable-isotope-ratio and gas-ratio measurement results
Tyler B. Coplen
2011, Rapid Communications in Mass Spectrometry (25) 2538-2560
To minimize confusion in the expression of measurement results of stable isotope and gas-ratio measurements, recommendations based on publications of the Commission on Isotopic Abundances and Atomic Weights of the International Union of Pure and Applied Chemistry (IUPAC) are presented. Whenever feasible, entries are consistent with the Système International d'Unités,...
Biogeochemical evolution of a landfill leachate plume, Norman, Oklahoma
Isabelle M. Cozzarelli, J.K. Bohlke, Jason R. Masoner, George N. Breit, Michelle M. Lorah, Michele L. Tuttle, Jeanne B. Jaeschke
2011, Ground Water (49) 663-687
Leachate from municipal landfills can create groundwater contaminant plumes that may last for decades to centuries. The fate of reactive contaminants in leachate-affected aquifers depends on the sustainability of biogeochemical processes affecting contaminant transport. Temporal variations in the configuration of redox zones downgradient from the Norman Landfill were studied for...
Ecosystem approach to inland fisheries: research needs and implementation strategies
T. Douglas Beard Jr., Robert Arlinghaus, Steven J. Cooke, Peter B. McIntyre, Sena De Silva, Devin M. Bartley, Ian G. Cowx
2011, Biology Letters (7) 481-483
Inland fisheries are a vital component in the livelihoods and food security of people throughout the world, as well as contributing huge recreational and economic benefits. These valuable assets are jeopardized by lack of research-based understanding of the impacts of fisheries on inland ecosystems, and similarly the impact of human...
Behavior and movement of formerly landlocked juvenile coho salmon after release into the free-flowing Cowlitz River, Washington
Tobias J. Kock, Julie A. Henning, Theresa L. Liedtke, Ida M. Royer, Brian K. Ekstrom, Dennis W. Rondorf
2011, Northwestern Naturalist (92) 167-174
Formerly landlocked Coho Salmon (Oncorhynchus kisutch) juveniles (age 2) were monitored following release into the free-flowing Cowlitz River to determine if they remained in the river or resumed seaward migration. Juvenile Coho Salmon were tagged with a radio transmitter (30 fish) or Floy tag (1050 fish) and their behavior was...
Bromine
Joyce A. Ober
2011, Mining Engineering (63) 49-50
All U.S. production of bromine in 2010 came from underground brines in Arkansas. It was the leading mineral commodity produced in the state in terms of value. Albemarle Corp. and Chemtura Corp. recovered bromine....
Gemstones
D.W. Olson
2011, Mining Engineering (63) 64-65
The estimated value of natural gemstones produced from U.S. deposits during 2010 was $8.5 million, a slight increase from 2009. U.S. gemstone production included agate, amber, beryl, coral, garnet, jade, jasper, opal, pearl, quartz, sapphire, shell, topaz, tourmaline, turquoise and many other gem materials....
The impact of the 2009-10 El Niño Modoki on U.S. West Coast beaches
Patrick L. Barnard, Jonathan Allan, Jeff E. Hansen, George M. Kaminsky, Peter Ruggiero, André Doria
2011, Geophysical Research Letters (38)
High-resolution beach morphology data collected along much of the U.S. West Coast are synthesized to evaluate the coastal impacts of the 2009–10 El Niño. Coastal change observations were collected as part of five beach monitoring programs that span between 5 and 13 years in duration. In California, regional wave and...
Don't forget about the Christchurch earthquake: Lessons learned from this disaster
Michael W. Hamburger, Walter D. Mooney
2011, Earth Magazine (56) 24-26
In the aftermath of the devastating magnitude-9.0 earthquake and tsunami that struck the Tohoku region of Japan on March 11, attention quickly turned away from a much smaller, but also highly destructive earthquake that struck the city of Christchurch, New Zealand, just a few weeks earlier, on Feb. 22. Both...
Gopherus agassizii (desert tortoise). Burrow collapse
Caleb L. Loughran, Joshua Ennen, Jeffrey E. Lovich
2011, Herpetological Review (42) 593-593
In the deserts of the southwestern U.S., burrows are utilized by the Desert Tortoise to escape environmental extremes (reviewed by Ernst and Lovich 2009. Turtles of the United States and Canada. 2nd ed. Johns Hopkins Univ. Press, Baltimore, Maryland. 827 pp.). However, the potential for mortality through burrow collapse and...
Changes in historical Iowa land cover as context for assessing the environmental benefits of current and future conservation efforts on agricultural lands
Alisa L. Gallant, Walt Sadinski, Mark F. Roth, Charles A. Rewa
2011, Journal of Soil and Water Conservation (66) 67A-77A
Conservationists and agriculturists face unprecedented challenges trying to minimize tradeoffs between increasing demands for food, fiber, feed, and biofuels and the resulting loss or reduced values of other ecosystem services, such as those derived from wetlands and biodiversity (Millennium Ecosystem Assessment 2005a, 2005c; Maresch et al. 2008). The Food, Conservation,...
Conodont biostratigraphy and stable isotope stratigraphy across the Ordovician Knox/Beekmantown unconformity in the central Appalachians
Stephen A. Leslie, Matthew R. Saltzman, S. M. Bergstrom, J.E. Repetski, A. Howard, A.M. Seward
J.C. Gutierrez-Marco, I. Rabano, D. Garcia-Bellido, editor(s)
2011, Conference Paper, Ordovician of the world: proceedings of the 11th International Symposium on the Ordovician System (Serie Cuadernos del Museo Geominero 14)
Multi-species attributes as the condition for adaptive sampling of rare species using two-stage sequential sampling with an auxiliary variable
B. Panahbehagh, D. R. Smith, M.M. Salehi, D.J. Hornbach, D.J. Brown
F. Chan, D. Marinova, R.S. Anderssen, editor(s)
2011, Conference Paper, MODSIM2011, 19th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, December 2011
Assessing populations of rare species is challenging because of the large effort required to locate patches of occupied habitat and achieve precise estimates of density and abundance. The presence of a rare species has been shown to be correlated with presence or abundance of more common species. Thus, ecological community...
A previously unreported locality record for the Gila monster (Heloderma suspectum)
Jeff Lovich, Gordon Haxel
2011, Bulletin of the Southern California Academy of Sciences (110) 59-62
Although the Gila Monster (Heloderma suspectum) is widely distributed throughout the Sonoran and portions of the Mojave Deserts of the southwestern United States and northwestern Mexico, details of its distribution in California are imperfectly known, due to the apparent rarity of the species in that state. In their review of...
Estimating the hatchery fraction of a natural population: a Bayesian approach
Jarrett J. Barber, Kenneth G. Gerow, Patrick J. Connolly, Sarabdeep Singh
2011, North American Journal of Fisheries Management (31) 934-942
There is strong and growing interest in estimating the proportion of hatchery fish that are in a natural population (the hatchery fraction). In a sample of fish from the relevant population, some are observed to be marked, indicating their origin as hatchery fish. The observed proportion of marked fish is...
Bioenergetics in ecosystems
Charles P. Madenjian
Anthony P. Farrell, editor(s)
2011, Book chapter, Encyclopedia of fish physiology: from genome to environment
A bioenergetics model for a fish can be defined as a quantitative description of the fish’s energy budget. Bioenergetics modeling can be applied to a fish population in a lake, river, or ocean to estimate the annual consumption of food by the fish population; such applications have proved to be...
Variations in eruption style during the 1931 A.D. eruption of Aniakchak volcano, Alaska
Robert S. Nicholson, James E. Gardner, Christina A. Neal
2011, Journal of Volcanology and Geothermal Research (207) 69-82
The 1931 A.D. eruption of Aniakchak volcano, Alaska, progressed from subplinian to effusive eruptive style and from trachydacite to basaltic andesite composition from multiple vent locations. Eyewitness accounts and new studies of deposit stratigraphy provide a combined narrative of eruptive events. Additional field, compositional, grain size, componentry, density, and grain...
Nature's Notebook 2010: Data & participant summary
Theresa Crimmins, Alyssa H. Rosemartin, R. Lee Marsh, Ellen G. Denny, Carolyn A.F. Enquist, Jake F. Weltzin
2011, USA-NPN Technical Series 2011-001
The USA National Phenology Network (USA‐NPN) seeks to engage volunteer observers to collect phenology observations of plants and animals using consistent standards and to contribute to the USANPN National Phenology Database (NPDb). The commencement of 2010 marked the second functional year of Nature’s Notebook, the online phenology observation program developed by...
Lake sturgeon response to a spawning reef constructed in the Detroit river
Edward F. Roseman, B. Manny, J. Boase, M. Child, G. Kennedy, J. Craig, K. Soper, R. Drouin
2011, Journal of Applied Ichthyology (27) 66-76
Prior to the First World War, the bi-national Detroit River provided vast areas of functional fish spawning and nursery habitat. However, ongoing conflicting human uses of these waters for activities such as waste disposal, water withdrawals, shoreline development, shipping, recreation, and fishing have altered many of the chemical, physical, and...
Methane hydrates and the future of natural gas
Carolyn Ruppel
2011, Report, The future of natural gas: an interdisciplinary MIT study
For decades, gas hydrates have been discussed as a potential resource, particularly for countries with limited access to conventional hydrocarbons or a strategic interest in establishing alternative, unconventional gas reserves. Methane has never been produced from gas hydrates at a commercial scale and, barring major changes in the...
Landscape models of brook trout abundance and distribution in lotic habitat with field validation
James E. McKenna Jr., James H. Johnson
2011, North American Journal of Fisheries Management (31) 742-756
Brook trout Salvelinus fontinalis are native fish in decline owing to environmental changes. Predictions of their potential distribution and a better understanding of their relationship to habitat conditions would enhance the management and conservation of this valuable species. We used over 7,800 brook trout observations throughout New York State and...
Global Positioning System constraints on crustal deformation before and during the 21 February 2008 Wells, Nevada M6.0 earthquake
William C. Hammond, Geoffrey Blewitt, Corne Kreemer, Jessica R. Murray-Moraleda, Jerry L. Svarc
Craig M. dePolo, Daphne D. LaPointe, editor(s)
2011, Nevada Bureau of Mines and Geology Special Publication 36
Using Global Positioning System (GPS) data from permanent sites and U.S. Geological Survey (USGS) campaign data we have estimated co-seismic displacements and secular background crustal deformation patterns associated with the 21 February 2008 Wells Nevada earthquake. Estimated displacements at nearby permanent GPS sites ELKO (84 km distant) and GOSH...
A Geo-referenced 3D model of the Juan de Fuca Slab and associated seismicity
J. L. Blair, P. A. McCrory, D. H. Oppenheimer, F. Waldhauser
2011, Data Series 633
We present a Geographic Information System (GIS) of a new 3-dimensional (3D) model of the subducted Juan de Fuca Plate beneath western North America and associated seismicity of the Cascadia subduction system. The geo-referenced 3D model was constructed from weighted control points that integrate depth information from hypocenter locations...
An introduction to adaptive management for threatened and endangered species
Michael C. Runge
2011, Journal of Fish and Wildlife Management (2) 220-233
Management of threatened and endangered species would seem to be a perfect context for adaptive management. Many of the decisions are recurrent and plagued by uncertainty, exactly the conditions that warrant an adaptive approach. But although the potential of adaptive management in these settings has been extolled, there are limited...