Steven Sobieszczyk
2010, Report
LiDAR-derived (hydrography) stream network....
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Publication Extents
Not all publications have extents, not all extents are completely accurateM.J. Anteau, M. H. Sherfy
2010, Wetlands (30) 757-762
Measuring abundance of invertebrate forage for piping plovers (Charadrius melodus; hereafter plovers), a federally listed species in the USA, is an important component of research and monitoring targeted toward species recovery. Sticky traps are commonly used to passively sample invertebrates, but catch rates may vary diurnally or in response to...
J.S. Pigati, N.A. Lifton, A.J. Timothy Jull, Jay Quade
2010, Radiocarbon (52) 1236-1243
We describe the design, construction, and testing of a new, simplified in situ radiocarbon extraction system at the University of Arizona. Blank levels for the new system are low ((234 ?? 11) ?? 103 atoms (1 ??; n = 7)) and stable. The precision of a given measurement depends on...
Andrew E. LaMotte, Michael Wieczorek
2010, Report
This 30-meter resolution data set represents the tree canopy layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition.jpg The National Land Cover Data Set for 2001...
Andrew E. LaMotte, Michael Wieczorek
2010, Data Series 587-A
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition. The National Land Cover Data Set for 2001 was...
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 587-D
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition. The National Land Cover Data Set for 2001 was...
Shuqing Zhao, Shuguang Liu, Runsheng Yin, Zhengpeng Li, Yulin Deng, Kun Tan, Xiangzheng Deng, David Rothstein, Jiaguo Qi
2010, Environmental Management (45) 466-475
Quantifying the spatial and temporal dynamics of carbon stocks in terrestrial ecosystems and carbon fluxes between the terrestrial biosphere and the atmosphere is critical to our understanding of regional patterns of carbon budgets. Here we use the General Ensemble biogeochemical Modeling System to simulate the terrestrial ecosystem carbon dynamics in...
C.S. Swezey, F.T. Dulong
2010, The West Virginia Caver (28) 5-10
T.K. Pool, J. D. Olden, Joanna B. Whittier, C.P. Paukert
2010, Canadian Journal of Fisheries and Aquatic Sciences (67) 1791-1807
Freshwater conservation efforts require an understanding of how natural and anthropogenic factors shape the present-day biogeography of native and non-native species. This knowledge need is especially acute for imperiled native fishes in the highly modified Lower Colorado River Basin (LCRB), USA. In the present study we employed both a taxonomic...
M.M. McGree, D.L. Winkelman, N.K.M. Vieira, A.M. Vajda
2010, Canadian Journal of Fisheries and Aquatic Sciences (67) 1730-1743
Endocrine disrupting chemicals (EDCs) have been detected in surface waters worldwide and can lead to developmental and reproductive disruption in exposed fishes. In the US Great Plains, EDCs are impacting streams and rivers and may be causing adverse reproductive effects. To examine how estrogenic EDCs might affect reproductive success of...
John F. Bratton
2010, Journal of Geology (118) 565-575
Increased study of submarine groundwater systems in recent years has provided a wealth of new data and techniques, but some ambiguity has been introduced by insufficient distinguishing of the relevant spatial scales of the phenomena studied. Submarine groundwater flow and discharge on passive continental margins can be most productively studied...
Leon J. Kauffman, Francis H. Chapelle
2010, Ground Water Monitoring and Remediation (30) 54-63
A process-based methodology was used to compare the vulnerability of public supply wells tapping seven study areas in four hydrologically distinct regional aquifers to volatile organic compound (VOC) contamination. This method considers (1) contributing areas and travel times of groundwater flowpaths converging at individual supply wells, (2) the oxic and/or...
D. I. Schofield, Ronald J. Thomas, K. M. Goodenough, B. De Waele, P. E. J. Pitfield, R. M. Key, W. Bauer, G. J. Walsh, D. J. Lidke, A.V. Ralison, M. Rabarimanana, J. M. Rafahatelo, T. Randriamananjara
2010, Precambrian Research (182) 187-203
The Antongil Craton, along with the Masora and Antananarivo cratons, make up the fundamental Archaean building blocks of the island of Madagascar. They were juxtaposed during the late-Neoproterozoic to early Palaeozoic assembly of Gondwana. In this paper we give a synthesis of the geology of the Antongil Craton and present...
K.G. Boykin, B.C. Thompson, S. Propeck-Gray
2010, Ecological Modelling (221) 2769-2775
Despite widespread and long-standing efforts to model wildlife-habitat associations using remotely sensed and other spatially explicit data, there are relatively few evaluations of the performance of variables included in predictive models relative to actual features on the landscape. As part of the National Gap Analysis Program, we specifically examined physical...
H. Reuter, F. Jopp, J. M. Blanco-Moreno, C. Damgaard, Y. Matsinos, D.L. DeAngelis
2010, Basic and Applied Ecology (11) 572-581
A continuing discussion in applied and theoretical ecology focuses on the relationship of different organisational levels and on how ecological systems interact across scales. We address principal approaches to cope with complex across-level issues in ecology by applying elements of hierarchy theory and the theory of complex adaptive systems. A...
Karen M. Kiemnec-Tyburczy, Jonathan Q. Richmond, Anna E. Savage, Kelly R. Zamudio
2010, Immunogenetics (62) 741-751
Genes encoded by the major histocompatibility complex (MHC) play key roles in the vertebrate immune system. However, our understanding of the evolutionary processes and underlying genetic mechanisms shaping these genes is limited in many taxa, including amphibians, a group currently impacted by emerging infectious diseases. To further elucidate the evolution...
G. Newman, A. Crall, M. Laituri, J. Graham, T. Stohlgren, J.C. Moore, K. Kodrich, K.A. Holfelder
2010, Applied Environmental Education and Communication (9) 276-286
Citizen science programs are emerging as an efficient way to increase data collection and help monitor invasive species. Effective invasive species monitoring requires rigid data quality assurances if expensive control efforts are to be guided by volunteer data. To achieve data quality, effective online training is needed to improve field...
Monika Winder, James E. Cloern
2010, Philosophical Transactions of the Royal Society B: Biological Sciences (365) 3215-3226
Terrestrial plants are powerful climate sentinels because their annual cycles of growth, reproduction and senescence are finely tuned to the annual climate cycle having a period of one year. Consistency in the seasonal phasing of terrestrial plant activity provides a relatively low-noise background from which phenological shifts can be detected...
M. S. Al-Hwaiti, R. A. Zielinski, J.R. Bundham, J. F. Ranville, P.E. Ross
2010, Chinese Journal of Geochemistry (29) 261-269
Phosphogypsum (PG) is a by-product of the chemical reaction called the "wet process" whereby sulphuric acid reacts with phosphate rock (PR) to produce phosphoric acid, needed for fertilizer production. Through the wet process, some impurities naturally present in the PR become incorporated in PG, including U decay-series radionuclides, are the...
R. Greg Vaughan, Peter W. Webley
2010, Journal of Volcanology and Geothermal Research (198) 177-186
On March 17, 2009, a surtseyan eruption occurred around Hunga Ha'apai Island, Tonga. A series of observations from the high-spatial resolution Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and the high-temporal resolution Moderate Resolution Imaging Spectroradiometer (MODIS), was used to estimate the magnitude, location, start time, and duration of...
A.L. Weislogel, S.A. Graham, E. Z. Chang, J. L. Wooden, G. E. Gehrels
2010, Geological Society of America Bulletin (122) 2041-2062
To test the idea that the voluminous upper Middle to Upper Triassic turbidite strata in the Songpan-Ganzi complex of central China archive a detrital record of Dabie ultrahigh-pressure (UHP) terrane unroofing, we report 2080 single detrital U-Pb zircon ages by sensitive high-resolution ion microprobe-reverse geometry (SHRIMP-RG) and laser ablation-inductively coupled...
E. Kalkan, C.J. Wills, D.M. Branum
2010, Earthquake Spectra (26) 1039-1055
In this paper, we have combined the U.S. Geological Survey's National Seismic Hazard Maps model with the California geologic map showing 17 generalized geologic units that can be defined by their VS30. We regrouped these units into seven VS30 values and calculated a probabilistic seismic hazard map for the entire...
J.S. Pigati, J.A. Rech, J.C. Nekola
2010, Quaternary Geochronology (5) 519-532
Fossil shells of small terrestrial gastropods are commonly preserved in wetland, alluvial, loess, and glacial deposits, as well as in sediments at many archeological sites. These shells are composed largely of aragonite (CaCO3) and potentially could be used for radiocarbon dating, but they must meet two criteria before their 14C...
S. King, C.S. Elphick, D. Guadagnin, O. Taft, T. Amano
2010, Waterbirds (33) 151-159
Literature is reviewed to determine the effects of landscape features on waterbird use of fields in regions where rice (Oryza sativa) is grown. Rice-growing landscapes often consist of diverse land uses and land cover, including rice fields, irrigation ditches, other agricultural fields, grasslands, forests and natural wetlands. Numerous studies indicate...
W.N. Davis, R.G. Bramblett, A.V. Zale
2010, Freshwater Biology (55) 2612-2625
1. Extraction of coalbed natural gas (CBNG) often results in disposal of large quantities of CBNG product water, which may affect aquatic ecosystems. We evaluated the effects of CBNG development on fish assemblages in tributary streams of the Powder and Tongue rivers. We used treatment and control, impact versus reference...