Fitting a structured juvenile-adult model for green tree frogs to population estimates from capture-mark-recapture field data
Azmy S. Ackleh, J. Carter, Keng Deng, Qihua Huang, Nabendu Pal, Xing Yang
2012, Bulletin of Mathematical Biology (74) 641-665
We derive point and interval estimates for an urban population of green tree frogs (Hyla cinerea) from capture–mark–recapture field data obtained during the years 2006–2009. We present an infinite-dimensional least-squares approach which compares a mathematical population model to the statistical population estimates obtained from the field data. The model is...
Programs for calibration‐based Monte Carlo simulation of recharge areas
J. Jeffrey Starn, Amvrossios C. Bagtzoglou
2012, Ground Water (50) 472-476
One use of groundwater flow models is to simulate contributing recharge areas to wells or springs. Particle tracking can be used to simulate these recharge areas, but in many cases the modeler is not sure how accurate these recharge areas are because parameters such as hydraulic conductivity and recharge have...
Effects of flow releases on macroinvertebrate assemblages in the Indian and Hudson Rivers in the Adirondack Mountains of Northern New York
Barry P. Baldigo, A. J. Smith
2012, River Research and Applications (28) 858-871
The effects of flow releases (daily during spring and four times weekly during summer) from a small impoundment on macroinvertebrate assemblages in the lower Indian River and upper Hudson River of northern New York were assessed during the summers of 2005 and 2006. Community indices, feeding guilds, dominant species and...
A reevaluation of the Munson-Nygren-Retriever submarine landslide complex, Georges bank lower slope, western north Atlantic
Jason D. Chaytor, David C. Twichell, Uri S. ten Brink
2012, Advances in Natural and Technological Hazards Research (31) 135-146
The Munson-Nygren-Retriever (MNR) landslide complex is a series of distinct submarine landslides located between Nygren and Powell canyons on the Georges Bank lower slope. These landslides were first imaged in 1978 using widely-spaced seismic reflection profiles and were further investigated using continuous coverage GLORIA sidescan imagery collected over the landslide...
Development and use of a floristic quality index for coastal Louisiana marshes
M Jenneke Visser Jenneke, Kari Cretini, Ken W. Krauss, Gregory D. Steyer
2012, Environmental Monitoring and Assessment (184) 2389-2403
The Floristic Quality Index (FQI) has been used as a tool for assessing the integrity of plant communities and for assessing restoration projects in many regions of the USA. Here, we develop a modified FQI (FQImod) for coastal Louisiana wetlands and verify it using 12 years of monitoring data from...
Anthropogenic aerosols as a source of ancient dissolved organic matter in glaciers
Aron Stubbins, Eran Hood, Peter A. Raymond, George R. Aiken, Rachel L. Sleighter, Peter J. Hernes, David Butman, Patrick G. Hatcher, Robert G. Striegl, Paul F. Schuster, Hussain A.N. Abdulla, Andrew W. Vermilyea, Durelle T. Scott, Robert G.M. Spencer
2012, Nature Geoscience (5) 198-201
Glacier-derived dissolved organic matter represents a quantitatively significant source of ancient, yet highly bioavailable carbon to downstream ecosystems. This finding runs counter to logical perceptions of age–reactivity relationships, in which the least reactive material withstands degradation the longest and is therefore the oldest. The remnants of ancient peatlands and forests...
MODFLOW-style parameters in underdetermined parameter estimation
Marco D. D’Oria, Michael N. Fienen
2012, Groundwater (50) 149-153
In this article, we discuss the use of MODFLOW-Style parameters in the numerical codes MODFLOW_2005 and MODFLOW_2005-Adjoint for the definition of variables in the Layer Property Flow package. Parameters are a useful tool to represent aquifer properties in both codes and are the only option available in the adjoint version. Moreover, for overdetermined parameter...
Fungal influence on plant tolerance to stress
Russell J. Rodriguez, Claire J. Woodward, Regina S. Redman
2012, Book chapter, Biocomplexity of plant-fungal interactions
No abstract available....
Sensitivity analysis of the GEMS soil organic carbon model to land cover land use classification uncertainties under different climate scenarios in Senegal
A.M. Dieye, David P. Roy, N.P. Hanan, S. Liu, M. Hansen, A. Toure
2012, Biogeosciences (9) 631-648
Spatially explicit land cover land use (LCLU) change information is needed to drive biogeochemical models that simulate soil organic carbon (SOC) dynamics. Such information is increasingly being mapped using remotely sensed satellite data with classification schemes and uncertainties constrained by the sensing system, classification algorithms and land cover schemes. In...
Numerical simulations examining the possible role of anthropogenic and volcanic emissions during the 1997 Indonesian fires
Melissa A. Pfeffer, Barbel Langmann, Angelika Heil, Hans-F. Graf
2012, Air Quality, Atmosphere & Health (5) 277-292
The regional atmospheric chemistry and climate model REMOTE has been used to conduct numerical simulations of the atmosphere during the catastrophic Indonesian fires of 1997. These simulations represent one possible scenario of the event, utilizing the RETRO wildland fire emission database. Emissions from the fires dominate the atmospheric concentrations of...
Canadian SAR remote sensing for the Terrestrial Wetland Global Change Research Network (TWGCRN)
Shannon Kaya, Brian Brisco, Andrew Cull, Alisa L. Gallant, Walter J. Sadinski, Dean Thompson
2012, Conference Paper, Remote Sensing and Hydrology (Proceedings of a symposium held at Jackson Hole, Wyoming, USA, September 2010) (IAHS Publ. 352, 2012)
The Canada Centre for Remote Sensing (CCRS) has more than 30 years of experience investigating the use of SAR remote sensing for many applications related to terrestrial water resources. Recently, CCRS scientists began contributing to the Terrestrial Wetland Global Change Research Network (TWGCRN), a bi-national research network dedicated to assessing...
Can migration mitigate the effects of ecosystem change? Patterns of dispersal, energy acquisition and allocation in Great Lakes lake whitefish (Coregonus clupeaformis)
Michael D. Rennie, Mark P. Ebener, Tyler Wagner
2012, Advances in Limnology (63) 455-476
Migration can be a behavioural response to poor or declining home range habitat quality and can occur when the costs of migration are overcome by the benefi ts of encountering higher-quality resources elsewhere. Despite dramatic ecosystem-level changes in the benthic food web of the Laurentian Great Lakes since the colonization...
Vegetation model technical report
M Jenneke Visser Jenneke, M Scott Duke-Sylvester Scott, W.L. Broussard, Jacoby Carter
2012, Report, Louisiana’s Comprehensive Master Plan for a Sustainable Coast
The vegetation model (LAVegMod) described in this appendix is the next generation of a similar model (habitat switching module) initially developed as part of the Louisiana Coastal Area study. LAVegMod divides the original 5-habitat model for the Louisiana coast into 19 vegetation types. LAVegMod provides longer estimates of interannual variation...
Version 3.0 of EMINERS - Economic Mineral Resource Simulator
Joseph S. Duval
2012, Open-File Report 2004-1344
Quantitative mineral resource assessment, as developed by the U.S. Geological Survey (USGS), consists of three parts: (1) development of grade and tonnage mineral deposit models; (2) delineation of tracts permissive for each deposit type; and (3) probabilistic estimation of the numbers of undiscovered deposits for each deposit type. The estimate...
Chapter A6. Section 6.6. Alkalinity and acid neutralizing capacity
Stewart A. Rounds, Franceska D. Wilde
2012, Techniques of Water-Resources Investigations 09-A6.6
Alkalinity (determined on a filtered sample) and Acid Neutralizing Capacity (ANC) (determined on a whole-water sample) are measures of the ability of a water sample to neutralize strong acid. Alkalinity and ANC provide information on the suitability of water for uses such as irrigation, determining the efficiency of wastewater processes,...
Calcrete/caliche
Barbara H Lidz
2011, Book chapter, Encyclopedia of modern coral reefs: Structure, form and process
No abstract available....
Evaluation of two forms of electroanesthesia and carbon dioxide for short-term anesthesia in walleye
Christopher S. Vandergoot, Karen J Murchie, Steven J. Cooke, John M. Dettmers, Roger A. Bergstedt, David G. Fielder
2011, North American Journal of Fisheries Management (31) 914-922
Anesthetics immobilize fish, reducing physical damage and stress during aquaculture practices, stock assessment, and experimental procedures. Currently, only tricaine methanesulfonate (MS-222) is approved for use as an anesthetic for food fish in Canada and the United States; however, MS-222 can only be used with certain fish species, and treated fish...
Notes on interpretation of geophysical data over areas of mineralization in Afghanistan
Benjamin J. Drenth
2011, Open-File Report 2011-1258
Afghanistan has the potential to contain substantial metallic mineral resources. Although valuable mineral deposits have been identified, much of the country’s potential remains unknown. Geophysical surveys, particularly those conducted from airborne platforms, are a well-accepted and cost-effective method for obtaining information on the geological setting of a given area. This...
Identification of mineral resources in Afghanistan—Detecting and mapping resource anomalies in prioritized areas using geophysical and remote sensing (ASTER and HyMap) data
Trude V. V. King, Michaela R. Johnson, Bernard E. Hubbard, Benjamin J. Drenth, editor(s)
2011, Open-File Report 2011-1229
As part of the U.S. Geological Survey (USGS) and Department of Defense Task Force for Business and Stability Operations (TFBSO) natural resources revitalization activities in Afghanistan (Peters and others, 2011), three new datasets have been collected, compiled, and analyzed. These data have been used to more fully evaluate the areas...
Real-time seismic monitoring of structures: Data handling and case studies
Mehmet Celebi
2011, Book chapter, Earthquake data in engineering seismology: Predictive models, data management and networks
Within the last decade, advances in the acquisition, processing and transmission of data from real-time seismic monitoring systems has contributed to the growth in the number structures instrumented with such systems. An equally important factor for such growth can be attributed to the demands by stakeholders to find rapid answers...
Evaluation of approaches and associated uncertainties in the estimation of temperatures in the upper crust of the western United States
2011, Book
No abstract available ...
Arsenic in Chinese coals: Distribution, modes of occurrence, and environmental effects
Y. Kang, Guijian Liu
2011, Article
Arsenic, one of the most hazardous elements occurring in coals, can be released to the environment during coal processing and combustion. Based on the available literature and published results obtained in our laboratory, the content, distribution and the modes of occurrence of As in Chinese coals, and its environmental and...
Studies by the U.S. Geological Survey in Alaska, 2010
Julie A. Dumoulin, Cynthia Dusel-Bacon, editor(s)
2011, Professional Paper 1784
The collection of papers that follows continues the series of U.S. Geological Survey (USGS) investigative reports in Alaska under the broad umbrella of the geologic sciences. This series represents new and sometimes-preliminary findings that are of interest to Earth scientists in academia, government, and industry; to land and resource managers;...
Strong ground motion in Port-au-Prince, Haiti, during the M7.0 12 January 2010 Haiti earthquake
Susan E Hough, Doug Given, Tomoyo Taniguchi, J.R. Altidor, Dieuseul Anglade, S-L. Mildor
2011, Conference Paper
No strong motion records are available for the 12 January 2010 M7.0 Haiti earthquake. We use aftershock recordings as well as detailed considerations of damage to estimate the severity and distribution of mainshock shaking in Port-au-Prince. Relative to ground motions at a hard - rock reference site, peak accelerations...
LiDAR: Providing structure
Lee A. Vierling, Sebastián Martinuzzi, Gregory P. Asner, Jason M. Stoker, Brian R. Johnson
2011, Frontiers in Ecology and the Environment (9) 261-262
Since the days of MacArthur, three-dimensional (3-D) structural information on the environment has fundamentally transformed scientific understanding of ecological phenomena (MacArthur and MacArthur 1961). Early data on ecosystem structure were painstakingly laborious to collect. However, as reviewed and reported in recent volumes of Frontiers(eg Vierling et al. 2008; Asner et...
