Population dynamics of Lake Ontario lake trout during 1985-2007
Travis O. Brenden, James R. Bence, Brian F. Lantry, Jana R. Lantry, Ted Schaner
2011, North American Journal of Fisheries Management (31) 962-979
Lake trout Salvelinus namaycush were extirpated from Lake Ontario circa 1950 owing to commercial and recreational fishing, predation by sea lampreys Petromyzon marinus, and habitat degradation. Since the 1970s, substantial efforts have been devoted to reestablishing a self-sustaining population through stocking, sea lamprey control, and harvest reduction. Although a stocking-supported...
Applying definitions of “asbestos” to environmental and “low-dose” exposure Levels and health effects, particularly malignant mesothelioma
B.W. Case, J.L. Abraham, G. Meeker, F.D. Pooley, K.E. Pinkerton
2011, Journal of Toxicology and Environmental Health, Part B: Critical Reviews (14) 3-39
Although asbestos research has been ongoing for decades, this increased knowledge has not led to consensus in many areas of the field. Two such areas of controversy include the specific definitions of asbestos, and limitations in understanding exposure-response relationships for various asbestos types and exposure levels and disease. This document...
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...
Factors governing risk of cougar attacks on humans
David Mattson, Kenneth Logan, Linda Sweanor
2011, Human-Wildlife Interactions (5) 135-158
Since the 1980s wildlife managers in the United States and Canada have expressed increasing concern about the physical threat posed by cougars (Puma concolor) to humans. We developed a conceptual framework and analyzed 386 human– cougar encounters (29 fatal attacks, 171 instances of nonfatal contact, and 186 close-threatening encounters) to provide...
Peat
L.E. Apodaca
2011, Mining Engineering (63) 86-87
In 2010, domestic production of peat, excluding Alaska, was estimated to be 612 kt (674,600 st), compared with 609 kt (671,300 st) in 2009. In 2010, imports increased to 947 kt (1.04 million st), compared with 906 kt (998,600 st) in 2009. Exports were estimated to have decreased to 69...
The fecal bacteria
Michael J. Sadowsky, Richard L. Whitman, editor(s)
2011, Book
The Fecal Bacteria offers a balanced, integrated discussion of fecal bacteria and their presence and ecology in the intestinal tract of mammals, in the environment, and in the food supply. This new volume covers their use in examining and assessing water quality in order to offer protection from illnesses related...
Fire clay
R.L. Virta
2011, Mining Engineering (63) 60-61
The article discusses the latest developments in the fire clay industry, particularly in the U.S., as of June 2011. It claims that the leading fire clay producer in the U.S. is the state of Missouri. The other major producers include California, Texas and Washington. It reports that the use of...
USGS invasive species solutions
Annie Simpson
2011, Natural Selections (2011) 9-9
Land managers must meet the invasive species challenge every day, starting with identification of problem species, then the collection of best practices for their control, and finally the implementation of a plan to remove the problem. At each step of the process, the availability of reliable information is essential to...
Diatomite
R.D. Crangle
2011, Mining Engineering (63) 58-59
The United States continues to be the world's leading producer and consumer of diatomite. Production of diatomite in the United States during 2010 was estimated to be 550 kt (606,000 st), a 4-percent decrease compared with 2009 production....
Bauxite and alumina
E.L. Bray
2011, Mining Engineering (63) 44-45
The article discusses the latest developments in the bauxite and alumina industry, particularly in the U.S., as of June 2011. It claims that the U.S. mainly relies on imports for its bauxite consumption. Several states, including Alabama, Arkansas and Georgia, however, produce small amounts of bauxite and bauxitic clays for...
Kaolin
R.L. Virta
2011, Mining Engineering (63) 76-77
The article discusses the latest developments in the global kaolin industry, particularly in the U.S., as of June 2011. It claims that Georgia is the top producing state in the U.S., with a 94% share in total production. The other top producers include South Carolina, North Carolina and Florida. Kaolin...
Conclusions and future use of fecal indicator bacteria for monitoring water quality and protecting human health
Michael J. Sadowsky, Richard L. Whitman
2011, Book chapter, The fecal bacteria
A summary of the focus and the recurring theme of the book is presented in this chapter. It includes the use of faecal bacteria as an indicator of faecal pollution and water quality, ubiquity of faecal bacteria, and sources and movement of faecal bacteria in the environment....
Interacting vegetative and thermal contributions to water movement in desert soil
C.A. Garcia, Brian J. Andraski, David A. Stonestrom, C.A. Cooper, J. Simunek, S.W. Wheatcraft
2011, Vadose Zone Journal (10) 552-564
Thermally driven water-vapor flow can be an important component of total water movement in bare soil and in deep unsaturated zones, but this process is often neglected when considering the effects of soil–plant–atmosphere interactions on shallow water movement. The objectives of this study were to evaluate the coupled and separate...
Fire and brimstone continues to shape Yellowstone Lake: connecting geology and past climates with today's biodiversity
Susan Kelly, Lisa Morgan, Stephanie McGinnis
2011, The Earth Scientist (27) 23-28
Strontium
M.A. Angulo
2011, Mining Engineering (63) 98-99
In 2010, U.S. apparent consumption of strontium (contained in celestite and manufactured strontium compounds) decreased by 11 percent to 10.4 kt (11,460 st) from 11.8 kt (13,000 st) in 2009. Gross weight of imports totaled 20.9 kt (23,000 st), of which 65 percent originated from Mexico....
Common clay and shale
R.L. Virta
2011, Mining Engineering (63) 54-55
The article discusses the latest developments in the global common clay and shale industry, particularly in the U.S. It claims that common clay and shale is mainly used in the manufacture of heavy clay products like brick, flue tile and sewer pipe. The main producing states in the U.S. include...
Geographical and geological data from caves and mines infected with white-nose syndrome (WNS) before September 2009 in the eastern United States
Christopher S. Swezey, Christopher P. Garrity
2011, Journal of Cave and Karst Studies (73) 125-157
Since 2006, a white fungus named Geomyces destructans has been observed on the muzzles, noses, ears, and (or) wings of bats in the eastern United States, and bat colonies that are infected with this fungus have experienced dramatic incidences of mortality. Although it is not exactly certain how and why...
Observations of debris flows at Chalk Cliffs, Colorado, USA: Part 2, changes in surface morphometry from terrestrial laser scanning in the summer of 2009
Dennis M. Staley, Thad A. Wasklewicz, Jeffrey A. Coe, Jason W. Kean, Scott W. McCoy, Greg E. Tucker
2011, Italian Journal of Engineering Geology and Environment 759-768
High resolution topographic data that quantify changes in channel form caused by sequential debris flows in natural channels are rare at the reach scale. Terrestrial laser scanning (TLS) techniques are utilized to capture morphological changes brought about by a high-frequency of debris-flow events at Chalk Cliffs, Colorado. The purpose of...
Borates
M.A. Angulo
2011, Mining Engineering (63) 47-49
The article discusses the latest developments in the borates industry, particularly in the U.S., as of June 2011. It claims that the biggest economically feasible deposits of borates are seen in the U.S.' Mojave Desert, the Alpide belt in southern Asia and the Andean belt of South America. Turkish state-owned...
Mineral resource of the month: molybdenum
Desire E. Polyak
2011, Earth (56) 25-25
The article offers information about the mineral molybdenum. Sources includes byproduct or coproduct copper-molybdenum deposits in the Western Cordillera of North and South America. Among the uses of molybdenum are stainless steel applications, as an alloy material for manufacturing vessels and as lubricants, pigments or chemicals. Also noted is the...
Reducing cement's CO2 footprint
Hendrik G. van Oss
2011, Private Sector & Development (10)
The manufacturing process for Portland cement causes high levels of greenhouse gas emissions. However, environmental impacts can be reduced by using more energy-efficient kilns and replacing fossil energy with alternative fuels. Although carbon capture and new cements with less CO2 emission are still in the experimental phase, all these innovations...
Gopherus agassizii (Desert Tortoise). Non-native seed dispersal
J.R. Ennen, Caleb L. Loughran, Jeffrey E. Lovich
2011, Herpetological Review (42) 266-267
Sahara Mustard (Brassica tournefortii) is a non-native, highly invasive weed species of southwestern U.S. deserts. Sahara Mustard is a hardy species, which flourishes under many conditions including drought and in both disturbed and undisturbed habitats (West and Nabhan 2002. In B. Tellman [ed.], Invasive Plants: Their Occurrence and Possible Impact...
Infectious diseases in Yellowstone’s canid community
Emily S. Almberg, Paul C. Cross, L. David Mech, Doug W. Smith, Jennifer W. Sheldon, Robert L. Crabtree
2011, Yellowstone Science (19) 16-24
Each summer Yellowstone Wolf Project staff visit den sites to monitor the success of wolf reproduction and pup rearing behavior. For the purposes of wolf monitoring, Yellowstone National Park (YNP) is divided into two study areas, the northern range and the interior, each distinguished by their ecological and physiographical differences....
Characterization of the Sonoran desert as a radiometric calibration target for Earth observing sensors
Amit Angal, Gyanesh Chander, Xiaoxiong Xiong, Tae-young Choi, Aisheng Wu
2011, Journal of Applied Remote Sensing (5)
To provide highly accurate quantitative measurements of the Earth's surface, a comprehensive calibration and validation of the satellite sensors is required. The NASA Moderate Resolution Imaging Spectroradiometer (MODIS) Characterization Support Team, in collaboration with United States Geological Survey, Earth Resources Observation and Science Center, has previously demonstrated the use of...
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...
