{"pageNumber":"2362","pageRowStart":"59025","pageSize":"25","recordCount":185071,"records":[{"id":70030902,"text":"70030902 - 2007 - Composite analysis for Escherichia coli at coastal beaches","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030902","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Composite analysis for Escherichia coli at coastal beaches","docAbstract":"At some coastal beaches, concentrations of fecal-indicator bacteria can differ substantially between multiple points at the same beach at the same time. Because of this spatial variability, the recreational water quality at beaches is sometimes determined by stratifying a beach into several areas and collecting a sample from each area to analyze for the concentration of fecal-indicator bacteria. The average concentration of bacteria from those points is often used to compare to the recreational standard for advisory postings. Alternatively, if funds are limited, a single sample is collected to represent the beach. Compositing the samples collected from each section of the beach may yield equally accurate data as averaging concentrations from multiple points, at a reduced cost. In the study described herein, water samples were collected at multiple points from three Lake Erie beaches and analyzed for Escherichia coli on modified mTEC agar (EPA Method 1603). From the multiple-point samples, a composite sample (n = 116) was formed at each beach by combining equal aliquots of well-mixed water from each point. Results from this study indicate that E. coli concentrations from the arithmetic average of multiple-point samples and from composited samples are not significantly different (t = 1.59, p = 0.1139) and yield similar measures of recreational water quality; additionally, composite samples could result in a significant cost savings.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3394/0380-1330(2007)33[335:CAFECA]2.0.CO;2","issn":"03801330","usgsCitation":"Bertke, E., 2007, Composite analysis for Escherichia coli at coastal beaches: Journal of Great Lakes Research, v. 33, no. 2, p. 335-341, https://doi.org/10.3394/0380-1330(2007)33[335:CAFECA]2.0.CO;2.","startPage":"335","endPage":"341","numberOfPages":"7","costCenters":[],"links":[{"id":211444,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3394/0380-1330(2007)33[335:CAFECA]2.0.CO;2"},{"id":238735,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f916e4b0c8380cd4d417","contributors":{"authors":[{"text":"Bertke, E.E.","contributorId":24990,"corporation":false,"usgs":true,"family":"Bertke","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":429145,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70030895,"text":"70030895 - 2007 - Oxygen isotopes in nitrite: Analysis, calibration, and equilibration","interactions":[],"lastModifiedDate":"2018-10-17T09:37:20","indexId":"70030895","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Oxygen isotopes in nitrite: Analysis, calibration, and equilibration","docAbstract":"<p><span>Nitrite is a central intermediate in the nitrogen cycle and can persist in significant concentrations in ocean waters, sediment pore waters, and terrestrial groundwaters. To fully interpret the effect of microbial processes on nitrate (NO</span><sub>3</sub><sup>-</sup><span>), nitrite (NO</span><sub>2</sub><sup>-</sup><span>), and nitrous oxide (N</span><sub>2</sub><span>O) cycling in these systems, the nitrite pool must be accessible to isotopic analysis. Furthermore, because nitrite interferes with most methods of nitrate isotopic analysis, accurate isotopic analysis of nitrite is essential for correct measurement of nitrate isotopes in a sample that contains nitrite. In this study, nitrite salts with varying oxygen isotopic compositions were prepared and calibrated and then used to test the denitrifier method for nitrite oxygen isotopic analysis. The oxygen isotopic fractionation during nitrite reduction to N</span><sub>2</sub><span>O by </span><i>Pseudomonas </i><i>aureofaciens</i><span> was lower than for nitrate conversion to N</span><sub>2</sub><span>O, while oxygen isotopic exchange between nitrite and water during the reaction was similar. These results enable the extension of the denitrifier method to oxygen isotopic analysis of nitrite (in the absence of nitrate) and correction of nitrate isotopes for the presence of nitrite in “mixed” samples. We tested storage conditions for seawater and freshwater samples that contain nitrite and provide recommendations for accurate oxygen isotopic analysis of nitrite by any method. Finally, we report preliminary results on the equilibrium isotope effect between nitrite and water, which can play an important role in determining the oxygen isotopic value of nitrite where equilibration with water is significant.</span></p>","language":"English","publisher":"ACS","doi":"10.1021/ac061598h","issn":"00032700","usgsCitation":"Casciotti, K., Bohlke, J.K., McIlvin, M., Mroczkowski, S.J., and Hannon, J.E., 2007, Oxygen isotopes in nitrite: Analysis, calibration, and equilibration: Analytical Chemistry, v. 79, no. 6, p. 2427-2436, https://doi.org/10.1021/ac061598h.","productDescription":"10 p.","startPage":"2427","endPage":"2436","numberOfPages":"10","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":238635,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211359,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac061598h"}],"volume":"79","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-02-13","publicationStatus":"PW","scienceBaseUri":"505a72b2e4b0c8380cd76c47","contributors":{"authors":[{"text":"Casciotti, K.L.","contributorId":57653,"corporation":false,"usgs":true,"family":"Casciotti","given":"K.L.","affiliations":[],"preferred":false,"id":429121,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohlke, John Karl 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":127841,"corporation":false,"usgs":true,"family":"Bohlke","given":"John","email":"jkbohlke@usgs.gov","middleInitial":"Karl","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":429124,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McIlvin, M.R.","contributorId":75754,"corporation":false,"usgs":true,"family":"McIlvin","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":429123,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mroczkowski, Stanley J. 0000-0001-8026-6025 smroczko@usgs.gov","orcid":"https://orcid.org/0000-0001-8026-6025","contributorId":2628,"corporation":false,"usgs":true,"family":"Mroczkowski","given":"Stanley","email":"smroczko@usgs.gov","middleInitial":"J.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":429122,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hannon, Janet E. jehannon@usgs.gov","contributorId":3177,"corporation":false,"usgs":true,"family":"Hannon","given":"Janet","email":"jehannon@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":429120,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030894,"text":"70030894 - 2007 - Amplitude loss of sonic waveform due to source coupling to the medium","interactions":[],"lastModifiedDate":"2017-08-16T09:08:03","indexId":"70030894","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Amplitude loss of sonic waveform due to source coupling to the medium","docAbstract":"<p>In contrast to hydrate-free sediments, sonic waveforms acquired in gas hydrate-bearing sediments indicate strong amplitude attenuation associated with a sonic velocity increase. The amplitude attenuation increase has been used to quantify pore-space hydrate content by attributing observed attenuation to the hydrate-bearing sediment's intrinsic attenuation. A second attenuation mechanism must be considered, however. Theoretically, energy radiation from sources inside fluid-filled boreholes strongly depends on the elastic parameters of materials surrounding the borehole. It is therefore plausible to interpret amplitude loss in terms of source coupling to the surrounding medium as well as to intrinsic attenuation. Analyses of sonic waveforms from the Mallik 5L-38 well, Northwest Territories, Canada, indicate a significant component of sonic waveform amplitude loss is due to source coupling. Accordingly, all sonic waveform amplitude analyses should include the effect of source coupling to accurately characterize a formation's intrinsic attenuation.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1029/2006GL029015","issn":"00948276","usgsCitation":"Lee, M.W., and Waite, W., 2007, Amplitude loss of sonic waveform due to source coupling to the medium: Geophysical Research Letters, v. 34, no. 5, L05303; 4 p., https://doi.org/10.1029/2006GL029015.","productDescription":"L05303; 4 p.","numberOfPages":"4","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":477190,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006gl029015","text":"Publisher Index Page"},{"id":238598,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211327,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006GL029015"}],"volume":"34","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-03-07","publicationStatus":"PW","scienceBaseUri":"5059e9cbe4b0c8380cd48469","contributors":{"authors":[{"text":"Lee, Myung W. mlee@usgs.gov","contributorId":779,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","email":"mlee@usgs.gov","middleInitial":"W.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":429119,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waite, William F. 0000-0002-9436-4109 wwaite@usgs.gov","orcid":"https://orcid.org/0000-0002-9436-4109","contributorId":625,"corporation":false,"usgs":true,"family":"Waite","given":"William F.","email":"wwaite@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":429118,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030893,"text":"70030893 - 2007 - Water use regimes: Characterizing direct human interaction with hydrologic systems","interactions":[],"lastModifiedDate":"2018-04-03T11:40:13","indexId":"70030893","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Water use regimes: Characterizing direct human interaction with hydrologic systems","docAbstract":"<p><span>The sustainability of human water use practices is a rapidly growing concern in the United States and around the world. To better characterize direct human interaction with hydrologic systems (stream basins and aquifers), we introduce the concept of the water use regime. Unlike scalar indicators of anthropogenic hydrologic stress in the literature, the water use regime is a two‐dimensional, vector indicator that can be depicted on simple x‐y plots of normalized human withdrawals (</span><i>h</i><sub>out</sub><span>) versus normalized human return flows (</span><i>h</i><sub>in</sub><span>). Four end‐member regimes, natural‐flow‐dominated (undeveloped), human‐flow‐dominated (churned), withdrawal‐dominated (depleted), and return‐flow‐dominated (surcharged), are defined in relation to limiting values of<span>&nbsp;</span></span><i>h</i><sub>out</sub><span><span>&nbsp;</span>and<span>&nbsp;</span></span><i>h</i><sub>in</sub><span>. For illustration, the water use regimes of 19 diverse hydrologic systems are plotted and interpreted. Several of these systems, including the Yellow River Basin, China, and the California Central Valley Aquifer, are shown to approach particular end‐member regimes. Spatial and temporal regime variations, both seasonal and long‐term, are depicted. Practical issues of data availability and regime uncertainty are addressed in relation to the statistical properties of the ratio estimators<span>&nbsp;</span></span><i>h</i><sub>out</sub><span><span>&nbsp;</span>and<span>&nbsp;</span></span><i>h</i><sub>in</sub><span>. The water use regime is shown to be a useful tool for comparative water resources assessment and for describing both historic and alternative future pathways of water resource development at a range of scales.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005062","usgsCitation":"Weiskel, P.K., Vogel, R.M., Steeves, P.A., Zarriello, P.J., DeSimone, L.A., and Ries, K., 2007, Water use regimes: Characterizing direct human interaction with hydrologic systems: Water Resources Research, v. 43, no. 4, Article W04402; 11 p., https://doi.org/10.1029/2006WR005062.","productDescription":"Article W04402; 11 p.","costCenters":[],"links":[{"id":477189,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006wr005062","text":"Publisher Index Page"},{"id":238597,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-04-04","publicationStatus":"PW","scienceBaseUri":"505bccbfe4b08c986b32dcdc","contributors":{"authors":[{"text":"Weiskel, Peter K. pweiskel@usgs.gov","contributorId":1099,"corporation":false,"usgs":true,"family":"Weiskel","given":"Peter","email":"pweiskel@usgs.gov","middleInitial":"K.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true}],"preferred":true,"id":429116,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vogel, Richard M.","contributorId":66811,"corporation":false,"usgs":true,"family":"Vogel","given":"Richard","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":429114,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Steeves, Peter A. 0000-0001-7558-9719 psteeves@usgs.gov","orcid":"https://orcid.org/0000-0001-7558-9719","contributorId":1873,"corporation":false,"usgs":true,"family":"Steeves","given":"Peter","email":"psteeves@usgs.gov","middleInitial":"A.","affiliations":[{"id":41514,"text":"Maryland-Delaware-District of Columbia  Water Science Center","active":true,"usgs":true}],"preferred":true,"id":429115,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zarriello, Philip J.","contributorId":21588,"corporation":false,"usgs":false,"family":"Zarriello","given":"Philip","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":429113,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"DeSimone, Leslie A. 0000-0003-0774-9607 ldesimon@usgs.gov","orcid":"https://orcid.org/0000-0003-0774-9607","contributorId":195635,"corporation":false,"usgs":true,"family":"DeSimone","given":"Leslie","email":"ldesimon@usgs.gov","middleInitial":"A.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true}],"preferred":true,"id":429117,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ries, Kernell G. III kries@usgs.gov","contributorId":1913,"corporation":false,"usgs":true,"family":"Ries","given":"Kernell G.","suffix":"III","email":"kries@usgs.gov","affiliations":[{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":false,"id":429112,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030891,"text":"70030891 - 2007 - Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O","interactions":[],"lastModifiedDate":"2018-10-17T08:54:35","indexId":"70030891","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N<sub>2</sub>O","title":"Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O","docAbstract":"<p><span>Nitrite is an important intermediate species in the biogeochemical cycling of nitrogen, but its role in natural aquatic systems is poorly understood. Isotopic data can be used to study the sources and transformations of NO</span><sub>2</sub><sup>-</sup><span> in the environment, but methods for independent isotopic analyses of NO</span><sub>2</sub><sup>-</sup><span> in the presence of other N species are still new and evolving. This study demonstrates that isotopic analyses of N and O in NO</span><sub>2</sub><sup>-</sup><span> can be done by treating whole freshwater or saltwater samples with the denitrifying bacterium </span><i>Stenotrophomonas nitritireducens</i><span>, which selectively reduces NO</span><sub>2</sub><sup>-</sup><span> to N</span><sub>2</sub><span>O for isotope ratio mass spectrometry. When calibrated with solutions containing NO</span><sub>2</sub><sup>-</sup><span> with known isotopic compositions determined independently, reproducible δ</span><sup>15</sup><span>N and δ</span><sup>18</sup><span>O values were obtained at both natural-abundance levels (±0.2−0.5‰ for δ</span><sup>15</sup><span>N and ±0.4−1.0‰ for δ</span><sup>18</sup><span>O) and moderately enriched </span><sup>15</sup><span>N tracer levels (±20−50‰ for δ</span><sup>15</sup><span>N near 5000‰) for 5−20 nmol of NO</span><sub>2</sub><sup>-</sup><span> (1−20 μmol/L in 1−5 mL aliquots). This method is highly selective for NO</span><sub>2</sub><sup>-</sup><span>and was used for mixed samples containing both NO</span><sub>2</sub><sup>-</sup><span> and NO</span><sub>3</sub><sup>-</sup><span> with little or no measurable cross-contamination. In addition, mixed samples that were analyzed with </span><i>S. nitritireducens</i><span> were treated subsequently with </span><i>Pseudomonas aureofaciens</i><span> to reduce the NO</span><sub>3</sub><sup>-</sup><span> in the absence of NO</span><sub>2</sub><sup>-</sup><span>, providing isotopic analyses of NO</span><sub>2</sub><sup>-</sup><span> and NO</span><sub>3</sub><sup>-</sup><span> separately in the same aliquot. Sequential bacterial reduction methods like this one should be useful for a variety of isotopic studies aimed at understanding nitrogen cycling in aquatic environments. A test of these methods in an agricultural watershed in Indiana provides isotopic evidence for both nitrification and denitrification as sources of NO</span><sub>2</sub><sup>-</sup><span> in a small stream.</span></p>","language":"English","publisher":"ACS","doi":"10.1021/ac070176k","issn":"00032700","usgsCitation":"Bohlke, J.K., Smith, R.L., and Hannon, J.E., 2007, Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O: Analytical Chemistry, v. 79, no. 15, p. 5888-5895, https://doi.org/10.1021/ac070176k.","productDescription":"8 p.","startPage":"5888","endPage":"5895","numberOfPages":"8","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":238563,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211294,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac070176k"}],"country":"United States","state":"Indiana","volume":"79","issue":"15","noUsgsAuthors":false,"publicationDate":"2007-06-21","publicationStatus":"PW","scienceBaseUri":"505a3f93e4b0c8380cd64613","contributors":{"authors":[{"text":"Bohlke, John Karl 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":127841,"corporation":false,"usgs":true,"family":"Bohlke","given":"John","email":"jkbohlke@usgs.gov","middleInitial":"Karl","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":429110,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Richard L. 0000-0002-3829-0125 rlsmith@usgs.gov","orcid":"https://orcid.org/0000-0002-3829-0125","contributorId":1592,"corporation":false,"usgs":true,"family":"Smith","given":"Richard","email":"rlsmith@usgs.gov","middleInitial":"L.","affiliations":[{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true}],"preferred":true,"id":429109,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hannon, Janet E. jehannon@usgs.gov","contributorId":3177,"corporation":false,"usgs":true,"family":"Hannon","given":"Janet","email":"jehannon@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":429108,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030890,"text":"70030890 - 2007 - Ecohydrological controls on soil moisture and hydraulic conductivity within a pinyon‐juniper woodland","interactions":[],"lastModifiedDate":"2018-04-03T12:16:30","indexId":"70030890","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Ecohydrological controls on soil moisture and hydraulic conductivity within a pinyon‐juniper woodland","docAbstract":"<p><span>The impact of pinyon‐juniper woodland encroachment on rangeland ecosystems is often associated with a reduction of streamflow and recharge and an increase in soil erosion. The objective of this study is to investigate vegetational control on seasonal soil hydrologic properties along a 15‐m transect in pinyon‐juniper woodland with biocrust. We demonstrate that the juniper tree controls soil water content (SWC) patterns directly under the canopy via interception, and beyond the canopy via shading in a preferred orientation, opposite to the prevailing wind direction. The juniper also controls the SWC and unsaturated hydraulic conductivity measured close to water saturation (</span><i>K</i><span>(</span><i>h</i><span>)) under the canopy by the creation of soil water repellency due to needle drop. We use this information to refine the hydrologic functional unit (HFU) concept into three interacting hydrologic units: canopy patches, intercanopy patches, and a transitional unit formed by intercanopy patches in the rain shadow of the juniper tree. Spatial autoregressive state‐space models show the close relationship between<span>&nbsp;</span></span><i>K</i><span>(</span><i>h</i><span>) close to soil water saturation and SWC at medium and low levels, integrating a number of influences on hydraulic conductivity.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005398","usgsCitation":"Lebron, I., Madsen, M., Chandler, D., Robinson, D., Wendroth, O., and Belnap, J., 2007, Ecohydrological controls on soil moisture and hydraulic conductivity within a pinyon‐juniper woodland: Water Resources Research, v. 43, no. 8, Article W08422; 15 p., https://doi.org/10.1029/2006WR005398.","productDescription":"Article W08422; 15 p.","costCenters":[],"links":[{"id":477215,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006wr005398","text":"Publisher Index Page"},{"id":238530,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-08-22","publicationStatus":"PW","scienceBaseUri":"505a053de4b0c8380cd50d04","contributors":{"authors":[{"text":"Lebron, I.","contributorId":94170,"corporation":false,"usgs":true,"family":"Lebron","given":"I.","email":"","affiliations":[],"preferred":false,"id":429106,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Madsen, M.D.","contributorId":37216,"corporation":false,"usgs":true,"family":"Madsen","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":429103,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chandler, D.G.","contributorId":105180,"corporation":false,"usgs":true,"family":"Chandler","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":429107,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Robinson, D.A.","contributorId":64895,"corporation":false,"usgs":true,"family":"Robinson","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":429104,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wendroth, O.","contributorId":82533,"corporation":false,"usgs":true,"family":"Wendroth","given":"O.","email":"","affiliations":[],"preferred":false,"id":429105,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Belnap, J. 0000-0001-7471-2279","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":23872,"corporation":false,"usgs":true,"family":"Belnap","given":"J.","affiliations":[],"preferred":false,"id":429102,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030889,"text":"70030889 - 2007 - First steps in developing a multimetric macroinvertebrate index for the Ohio River","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70030889","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"First steps in developing a multimetric macroinvertebrate index for the Ohio River","docAbstract":"The causes of degradation of aquatic systems are often complex and stem from a variety of human influences. Comprehensive, multimetric biological indices have been developed to quantify this degradation and its effect on aquatic communities, and measure subsequent recovery from anthropogenic stressors. Traditionally, such indices have concentrated on small-to medium-sized streams. Recently, however, the Ohio River Fish Index (ORFIn) was created to assess biotic integrity in the Ohio River. The goal of the present project was to begin developing a companion Ohio River multimetric index using benthic macroinvertebrates. Hester-Dendy multiplate samplers were used to evaluate benthic macroinvertebrate assemblages in relation to a gradient of water quality disturbance, represented by varying distances downstream of industrial and municipal wastewater outfalls in the Ohio River. In August 1999 and 2000, samplers were set every 100 m downstream of outfalls (12 outfalls in 1999, 22 in 2000) for 300-1000 m, as well as at upstream reference sites. Candidate metrics (n = 55) were examined to determine which have potential to detect changes in water quality downstream of outfalls. These individual measures of community structure were plotted against distance downstream of each outfall to determine their response to water quality disturbance. Values at reference and outfall sites were also compared. Metrics that are ecologically relevant and showed a response to outfall disturbance were identified as potentially valuable in a multimetric index. Multiple box plots of index scores indicated greater response to outfall disturbance during periods of low-flow, and longitudinal river-wide trends. Evaluation of other types of anthropogenic disturbance, as well as continued analysis of the effects of chemical water quality on macroinvertebrate communities in future years will facilitate further development of a multimetric benthic macroinvertebrate index to evaluate biotic integrity in the Ohio River. Copyright ?? 2007 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1011","issn":"15351459","usgsCitation":"Applegate, J., Baumann, P.C., Emery, E., and Wooten, M., 2007, First steps in developing a multimetric macroinvertebrate index for the Ohio River: River Research and Applications, v. 23, no. 7, p. 683-697, https://doi.org/10.1002/rra.1011.","startPage":"683","endPage":"697","numberOfPages":"15","costCenters":[],"links":[{"id":211266,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1011"},{"id":238529,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-04-20","publicationStatus":"PW","scienceBaseUri":"505a1069e4b0c8380cd53c68","contributors":{"authors":[{"text":"Applegate, J.M.","contributorId":93443,"corporation":false,"usgs":true,"family":"Applegate","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":429101,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baumann, P. C.","contributorId":43297,"corporation":false,"usgs":false,"family":"Baumann","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":429098,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Emery, E.B.","contributorId":52764,"corporation":false,"usgs":true,"family":"Emery","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":429100,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooten, M.S.","contributorId":43972,"corporation":false,"usgs":true,"family":"Wooten","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":429099,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030875,"text":"70030875 - 2007 - Characteristics of fly ashes from full-scale coal-fired power plants and their relationship to mercury adsorption","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70030875","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1513,"text":"Energy and Fuels","active":true,"publicationSubtype":{"id":10}},"title":"Characteristics of fly ashes from full-scale coal-fired power plants and their relationship to mercury adsorption","docAbstract":"Nine fly ash samples were collected from the particulate collection devices (baghouse or electrostatic precipitator) of four full-scale pulverized coal (PC) utility boilers burning eastern bituminous coals (EB-PC ashes) and three cyclone utility boilers burning either Powder River Basin (PRB) coals or PRB blends,(PRB-CYC ashes). As-received fly ash samples were mechanically sieved to obtain six size fractions. Unburned carbon (UBC) content, mercury content, and Brunauer-Emmett-Teller (BET)-N2 surface areas of as-received fly ashes and their size fractions were measured. In addition, UBC particles were examined by scanning electron microscopy, high-resolution transmission microscopy, and thermogravimetry to obtain information on their surface morphology, structure, and oxidation reactivity. It was found that the UBC particles contained amorphous carbon, ribbon-shaped graphitic carbon, and highly ordered graphite structures. The mercury contents of the UBCs (Hg/UBC, in ppm) in raw ash samples were comparable to those of the UBC-enriched samples, indicating that mercury was mainly adsorbed on the UBC in fly ash. The UBC content decreased with a decreasing particle size range for all nine ashes. There was no correlation between the mercury and UBC contents of different size fractions of as-received ashes. The mercury content of the UBCs in each size fraction, however, generally increased with a decreasing particle size for the nine ashes. The mercury contents and surface areas of the UBCs in the PRB-CYC ashes were about 8 and 3 times higher than UBCs in the EB-PC ashes, respectively. It appeared that both the particle size and surface area of UBC could contribute to mercury capture. The particle size of the UBC in PRB-CYC ash and thus the external mass transfer was found to be the major factor impacting the mercury adsorption. Both the particle size and surface reactivity of the UBC in EB-PC ash, which generally had a lower carbon oxidation reactivity than the PRB-PC ashes, appeared to be important for the mercury adsorption. ?? 2007 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Energy and Fuels","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/ef070145s","issn":"08870624","usgsCitation":"Lu, Y., Rostam-Abadi, M., Chang, R., Richardson, C., and Paradis, J., 2007, Characteristics of fly ashes from full-scale coal-fired power plants and their relationship to mercury adsorption: Energy and Fuels, v. 21, no. 4, p. 2112-2120, https://doi.org/10.1021/ef070145s.","startPage":"2112","endPage":"2120","numberOfPages":"9","costCenters":[],"links":[{"id":211557,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ef070145s"},{"id":238862,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-06-22","publicationStatus":"PW","scienceBaseUri":"5059f498e4b0c8380cd4bde3","contributors":{"authors":[{"text":"Lu, Y.","contributorId":40183,"corporation":false,"usgs":true,"family":"Lu","given":"Y.","affiliations":[],"preferred":false,"id":429043,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rostam-Abadi, M.","contributorId":37061,"corporation":false,"usgs":true,"family":"Rostam-Abadi","given":"M.","affiliations":[],"preferred":false,"id":429042,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chang, R.","contributorId":16175,"corporation":false,"usgs":true,"family":"Chang","given":"R.","email":"","affiliations":[],"preferred":false,"id":429041,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Richardson, C.","contributorId":93274,"corporation":false,"usgs":true,"family":"Richardson","given":"C.","email":"","affiliations":[],"preferred":false,"id":429045,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Paradis, J.","contributorId":47976,"corporation":false,"usgs":true,"family":"Paradis","given":"J.","email":"","affiliations":[],"preferred":false,"id":429044,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030874,"text":"70030874 - 2007 - Activity, aggression, and habitat use of ruffe (<i>Gymnocephalus cernuus</i>) and round goby (<i>Apollonia melanostoma</i>) under laboratory conditions","interactions":[],"lastModifiedDate":"2016-04-29T10:45:23","indexId":"70030874","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Activity, aggression, and habitat use of ruffe (<i>Gymnocephalus cernuus</i>) and round goby (<i>Apollonia melanostoma</i>) under laboratory conditions","docAbstract":"<p><span>Potential negative ecological interactions between ruffe&nbsp;</span><i>Gymnocephalus cernuus</i><span>&nbsp;and round goby</span><i>Apollonia melanostoma</i><span>&nbsp;(formerly&nbsp;</span><i>Neogobius melanostomus</i><span>) might affect the colonization dynamics of these invasive species where they are sympatric in the Great Lakes. In order to determine the potential for ecological interactions between these species, we examined the activity, aggression, and habitat use of round gobies and ruffe in single species and mixed species laboratory experiments. Trials included conditions in which food was concentrated (in light or darkness) or scattered. Results showed that ruffe were more active than gobies, particularly when food was scattered. Activity of both species was significantly lower during darkness. Round gobies were significantly more aggressive than ruffe, and total aggression was lower in mixed species trials. Habitat use by ruffe and round gobies overlapped considerably, but we observed significant differences between species in their use of specific habitats that depended on experimental conditions. Overall, ruffe used open habitats more often than did round gobies, primarily when food was scattered. Round gobies used rocks significantly more frequently than did ruffe, but their use of rock habitat decreased during dark conditions. Ruffe were found more often in plant habitats and less often near the wall of the pool in trials during daylight with concentrated food. Activity and habitat use of ruffe and round goby did not significantly differ between single and mixed species trials. Overall, we found little evidence for negative ecological interactions between ruffe and round goby in these laboratory experiments.</span></p>","language":"English","publisher":"International Association for Great Lakes Research","doi":"10.3394/0380-1330(2007)33[326:AAAHUO]2.0.CO;2","issn":"03801330","usgsCitation":"Savino, J., Riley, S., and Holuszko, M., 2007, Activity, aggression, and habitat use of ruffe (<i>Gymnocephalus cernuus</i>) and round goby (<i>Apollonia melanostoma</i>) under laboratory conditions: Journal of Great Lakes Research, v. 33, no. 2, p. 326-334, https://doi.org/10.3394/0380-1330(2007)33[326:AAAHUO]2.0.CO;2.","productDescription":"9 p.","startPage":"326","endPage":"334","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":238831,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211530,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3394/0380-1330(2007)33[326:AAAHUO]2.0.CO;2"}],"volume":"33","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e6d1e4b0c8380cd4764d","contributors":{"authors":[{"text":"Savino, J.F.","contributorId":69337,"corporation":false,"usgs":true,"family":"Savino","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":429039,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Riley, S.C.","contributorId":71378,"corporation":false,"usgs":true,"family":"Riley","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":429040,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holuszko, M.J.","contributorId":35943,"corporation":false,"usgs":true,"family":"Holuszko","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":429038,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030873,"text":"70030873 - 2007 - Selection for rapid embryo development correlates with embryo exposure to maternal androgens among passerine birds","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70030873","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":740,"text":"American Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Selection for rapid embryo development correlates with embryo exposure to maternal androgens among passerine birds","docAbstract":"Greater offspring predation favors evolution of faster development among species. We hypothesized that greater offspring predation exerts selection on mothers to increase levels of anabolic androgens in egg yolks to achieve faster development. Here, we tested whether (1) concentrations of yolk androgens in passerine species were associated with offspring predation and (2) embryo and nestling development rates were associated with yolk androgen concentrations. We examined three androgens that increase in potency along the synthesis pathway: androstenedione (A4) to testosterone (T) to 5??- dihydrotestosterone (5??-DHT). Concentrations of none of these steroids were related to clutch size; only A4 was allometrically related to egg volume. Species that experience greater predation showed higher yolk concentrations of T and 5??-DHT. Higher concentrations of T and particularly 5??-DHT were strongly correlated with faster development during the embryo period and less so during the nestling period. Development rates were most strongly correlated with 5??-DHT, suggesting that potency increases along the androgen synthesis pathway and that effects are mediated by the androgen receptor pathway. These results are consistent with the hypothesis that selection for faster development by time-dependent offspring mortality may be achieved epigenetically by varying embryo exposure to maternal anabolic steroids. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/519397","issn":"00030147","usgsCitation":"Schwabl, H., Palacios, M., and Martin, T.E., 2007, Selection for rapid embryo development correlates with embryo exposure to maternal androgens among passerine birds: American Naturalist, v. 170, no. 2, p. 196-206, https://doi.org/10.1086/519397.","startPage":"196","endPage":"206","numberOfPages":"11","costCenters":[],"links":[{"id":211529,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/519397"},{"id":238830,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"170","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8ccbe4b08c986b318126","contributors":{"authors":[{"text":"Schwabl, H.","contributorId":45811,"corporation":false,"usgs":true,"family":"Schwabl","given":"H.","affiliations":[],"preferred":false,"id":429036,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Palacios, M.G.","contributorId":95266,"corporation":false,"usgs":true,"family":"Palacios","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":429037,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martin, T. E.","contributorId":10911,"corporation":false,"usgs":true,"family":"Martin","given":"T.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":429035,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030872,"text":"70030872 - 2007 - Do soil characteristics or microhabitat determine field emergence and success of Bromus tectorum?","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70030872","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2183,"text":"Journal of Arid Environments","active":true,"publicationSubtype":{"id":10}},"title":"Do soil characteristics or microhabitat determine field emergence and success of Bromus tectorum?","docAbstract":"In southeastern Utah, Bromus tectorum occurs where Hilaria jamesii is dominant and rarely where Stipa hymenoides/S. comata dominate. To determine whether this distribution is due to soil characteristics or microhabitat, we transplanted H. jamesii soil to a Stipa site and vice versa during a severe drought (2001) and a wetter year (2002). Additionally, we planted B. tectorum under H. jamesii and Stipa canopies, with or without H. jamesii litter, and with or without herbivory. Bromus tectorum emergence and biomass in reciprocal transplants were similar at both sites; there were no site differences for all microhabitat treatments. Being under a plant canopy increased emergence in 2001 and decreased survival during 2002. Herbivory decreased emergence in 2001 and decreased survival during 2002. Litter increased emergence only under the canopy in 2001 but did not affect survival in 2002. Survival in 2001 was so low that biomass was unattainable; no microhabitat treatments affected biomass in 2002. We found that soil characteristics and microhabitat affected B. tectorum similarly in H. jamesii and Stipa patches, suggesting that these factors do not explain the association between B. tectorum and H. jamesii. However, these relationships may change during wet years when B. tectorum invasions most often occur. ?? 2006 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Arid Environments","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jaridenv.2006.12.013","issn":"01401963","usgsCitation":"Newingham, B., Vidiella, P., and Belnap, J., 2007, Do soil characteristics or microhabitat determine field emergence and success of Bromus tectorum?: Journal of Arid Environments, v. 70, no. 3, p. 389-402, https://doi.org/10.1016/j.jaridenv.2006.12.013.","startPage":"389","endPage":"402","numberOfPages":"14","costCenters":[],"links":[{"id":211503,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jaridenv.2006.12.013"},{"id":238800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"70","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0366e4b0c8380cd5048f","contributors":{"authors":[{"text":"Newingham, B.A.","contributorId":19775,"corporation":false,"usgs":true,"family":"Newingham","given":"B.A.","affiliations":[],"preferred":false,"id":429032,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vidiella, P.","contributorId":103866,"corporation":false,"usgs":true,"family":"Vidiella","given":"P.","email":"","affiliations":[],"preferred":false,"id":429034,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belnap, J. 0000-0001-7471-2279","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":23872,"corporation":false,"usgs":true,"family":"Belnap","given":"J.","affiliations":[],"preferred":false,"id":429033,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030871,"text":"70030871 - 2007 - Characterization of microsatellite loci isolated in Mountain Plover (Charadrius montanus)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70030871","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2775,"text":"Molecular Ecology Notes","onlineIssn":"1471-8286","printIssn":"1471-8278","active":true,"publicationSubtype":{"id":10}},"title":"Characterization of microsatellite loci isolated in Mountain Plover (Charadrius montanus)","docAbstract":"Primers for 15 microsatellite loci were developed for Mountain Plover, a species whose distribution and abundance have been reduced drastically in the past 30 years. In a screen of 126 individuals collected from four breeding locales across the species' range, levels of polymorphism ranged from two to 13 alleles per locus. No two loci were found to be linked, although one locus revealed significant departures from Hardy-Weinberg equilibrium. These microsatellite loci can be used in population genetic studies, ultimately aiding in management efforts for Mountain Plover. Additionally, these markers can potentially be used in studies investigating the mating system of Mountain Plover. ?? 2007 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology Notes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1471-8286.2007.01709.x","issn":"14718278","usgsCitation":"John, J.S., Kysela, R., and Oyler-McCance, S., 2007, Characterization of microsatellite loci isolated in Mountain Plover (Charadrius montanus): Molecular Ecology Notes, v. 7, no. 5, p. 802-804, https://doi.org/10.1111/j.1471-8286.2007.01709.x.","startPage":"802","endPage":"804","numberOfPages":"3","costCenters":[],"links":[{"id":211502,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1471-8286.2007.01709.x"},{"id":238799,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-02-19","publicationStatus":"PW","scienceBaseUri":"5059f4d1e4b0c8380cd4bf3b","contributors":{"authors":[{"text":"John, J. St","contributorId":48376,"corporation":false,"usgs":true,"family":"John","given":"J.","email":"","middleInitial":"St","affiliations":[],"preferred":false,"id":429029,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kysela, R.F.","contributorId":95680,"corporation":false,"usgs":true,"family":"Kysela","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":429031,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oyler-McCance, S.J.","contributorId":75877,"corporation":false,"usgs":true,"family":"Oyler-McCance","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":429030,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030861,"text":"70030861 - 2007 - Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit in the Bonnifield district, Alaska Range, east-central Alaska","interactions":[],"lastModifiedDate":"2019-12-19T09:53:27","indexId":"70030861","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1758,"text":"Geochemistry: Exploration, Environment, Analysis","active":true,"publicationSubtype":{"id":10}},"title":"Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit in the Bonnifield district, Alaska Range, east-central Alaska","docAbstract":"<p>The unmined, pyrite-rich Red Mountain (Dry Creek) deposit displays a remarkable environmental footprint of natural acid generation, high metal and exceedingly high rare earth element (REE) concentrations in surface waters. The volcanogenic massive sulphide deposit exhibits well-constrained examples of acid-generating, metal-leaching, metal-precipitation and self-mitigation (via co-precipitation, dilution and neutralization) processes that occur in an undisturbed natural setting, a rare occurrence in North America. Oxidative dissolution of pyrite and associated secondary reactions under near-surface oxidizing conditions are the primary causes for the acid generation and metal leaching. The deposit is hosted in Devonian to Mississippian felsic metavolcanic rocks of the Mystic Creek Member of the Totatlanika Schist.</p><p>Water samples with the lowest pH (many below 3.5), highest specific conductance (commonly &gt;2500 μS/cm) and highest major- and trace-element concentrations are from springs and streams within the quartz–sericite–pyrite alteration zone. Aluminum, Cd, Co, Cu, Fe, Mn, Ni, Pb, Y, Zn and, particularly, the REEs are found in high concentrations, ranging across four orders of magnitude. Waters collected upstream from the alteration zone have near-neutral pH, lower specific conductance (370 to 830 μS/cm), lower metal concentrations and measurable alkalinities. Water samples collected downstream of the alteration zone have pH and metal concentrations intermediate between these two extremes. Stream sediments are anomalous in Zn, Pb, S, Fe, Cu, As, Co, Sb and Cd relative to local and regional background abundances. Red Mountain Creek and its tributaries do not, and probably never have, supported significant aquatic life.</p>","language":"English","publisher":"Geological Society of London","doi":"10.1144/1467-7873/07-136","issn":"14677873","usgsCitation":"Eppinger, R.G., Briggs, P., Dusel-Bacon, C., Giles, S.A., Gough, L.P., Hammarstrom, J.M., and Hubbard, B.E., 2007, Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit in the Bonnifield district, Alaska Range, east-central Alaska: Geochemistry: Exploration, Environment, Analysis, v. 7, no. 3, p. 207-223, https://doi.org/10.1144/1467-7873/07-136.","productDescription":"17 p.","startPage":"207","endPage":"223","numberOfPages":"17","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"links":[{"id":238667,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Red Mountain","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -151.875,\n              63.39152174400882\n            ],\n            [\n              -146.1181640625,\n              63.39152174400882\n            ],\n            [\n              -146.1181640625,\n              65.45826097864811\n            ],\n            [\n              -151.875,\n              65.45826097864811\n            ],\n            [\n              -151.875,\n              63.39152174400882\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"7","issue":"3","noUsgsAuthors":false,"publicationDate":"2022-06-06","publicationStatus":"PW","scienceBaseUri":"505a09c5e4b0c8380cd5205f","contributors":{"authors":[{"text":"Eppinger, Robert G. eppinger@usgs.gov","contributorId":849,"corporation":false,"usgs":true,"family":"Eppinger","given":"Robert","email":"eppinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":777756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Briggs, Paul H.","contributorId":107691,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul H.","affiliations":[],"preferred":false,"id":428987,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":777757,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Giles, Stuart A. 0000-0002-8696-5078 sgiles@usgs.gov","orcid":"https://orcid.org/0000-0002-8696-5078","contributorId":1233,"corporation":false,"usgs":true,"family":"Giles","given":"Stuart","email":"sgiles@usgs.gov","middleInitial":"A.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":777758,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":777759,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hammarstrom, Jane M. 0000-0003-2742-3460 jhammars@usgs.gov","orcid":"https://orcid.org/0000-0003-2742-3460","contributorId":1226,"corporation":false,"usgs":true,"family":"Hammarstrom","given":"Jane","email":"jhammars@usgs.gov","middleInitial":"M.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":777760,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hubbard, Bernard E. 0000-0002-9315-2032 bhubbard@usgs.gov","orcid":"https://orcid.org/0000-0002-9315-2032","contributorId":2342,"corporation":false,"usgs":true,"family":"Hubbard","given":"Bernard","email":"bhubbard@usgs.gov","middleInitial":"E.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":777761,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70030860,"text":"70030860 - 2007 - Investigation of reductive dechlorination supported by natural organic carbon","interactions":[],"lastModifiedDate":"2018-10-16T11:28:56","indexId":"70030860","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1864,"text":"Ground Water Monitoring and Remediation","active":true,"publicationSubtype":{"id":10}},"title":"Investigation of reductive dechlorination supported by natural organic carbon","docAbstract":"<p>Because remediation timeframes using monitored natural attenuation may span decades or even centuries at chlorinated solvent sites, new approaches are needed to assess the long-term sustainability of reductive dechlorination in ground water systems. In this study, extraction procedures were used to investigate the mass of indigenous organic carbon in aquifer sediment, and experiments were conducted to determine if the extracted carbon could support reductive dechlorination of chloroethenes. Aquifer sediment cores were collected from a site without an anthropogenic source of organic carbon where organic carbon varied from 0.02% to 0.12%. Single extraction results showed that 1% to 28% of sediment-associated organic carbon and 2% to 36% of the soft carbon were removed depending on nature and concentration of the extracting solution (Nanopure water; 0.1%, 0.5%, and 1.0% sodium pyrophosphate; and 0.5 N sodium hydroxide). Soft carbon is defined as organic carbon oxidized with potassium persulfate and is assumed to serve as a source of biodegradable carbon within the aquifer. Biodegradability studies demonstrated that 20% to 40% of extracted organic carbon was biodegraded aerobically and anaerobically by soil microorganisms in relatively brief tests (45 d). A five-step extraction procedure consisting of 0.1% pyrophosphate and base solutions was investigated to quantify bioavailable organic carbon. Using the extracted carbon as the sole electron donor source, tetrachloroethene was transformed to cis-1,2- dichloroethene and vinyl chloride in anaerobic enrichment culture experiments. Hydrogen gas was produced at levels necessary to sustain reductive dechlorination (&gt;1 nM).</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water Monitoring and Remediation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6592.2007.00173.x","issn":"10693629","usgsCitation":"Rectanus, H.V., Widdowson, M.A., Chapelle, F.H., Kelly, C., and Novak, J.T., 2007, Investigation of reductive dechlorination supported by natural organic carbon: Ground Water Monitoring and Remediation, v. 27, no. 4, p. 53-62, https://doi.org/10.1111/j.1745-6592.2007.00173.x.","productDescription":"10 p.","startPage":"53","endPage":"62","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":238634,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211358,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6592.2007.00173.x"}],"volume":"27","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-11-20","publicationStatus":"PW","scienceBaseUri":"505a3e94e4b0c8380cd63eb3","contributors":{"authors":[{"text":"Rectanus, Heather V.","contributorId":46351,"corporation":false,"usgs":true,"family":"Rectanus","given":"Heather","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":428976,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Widdowson, Mark A.","contributorId":90379,"corporation":false,"usgs":true,"family":"Widdowson","given":"Mark","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":428977,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chapelle, Francis H. chapelle@usgs.gov","contributorId":1350,"corporation":false,"usgs":true,"family":"Chapelle","given":"Francis","email":"chapelle@usgs.gov","middleInitial":"H.","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true},{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true}],"preferred":true,"id":428980,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kelly, C.A.","contributorId":72564,"corporation":false,"usgs":true,"family":"Kelly","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":428978,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Novak, John T.","contributorId":41753,"corporation":false,"usgs":true,"family":"Novak","given":"John","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":428979,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030848,"text":"70030848 - 2007 - Evaluation of an experimental LiDAR for surveying a shallow, braided, sand-bedded river","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030848","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2338,"text":"Journal of Hydraulic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of an experimental LiDAR for surveying a shallow, braided, sand-bedded river","docAbstract":"Reaches of a shallow (<1.0m), braided, sand-bedded river were surveyed in 2002 and 2005 with the National Aeronautics and Space Administration's Experimental Advanced Airborne Research LiDAR (EAARL) and concurrently with conventional survey-grade, real-time kinematic, global positioning system technology. The laser pulses transmitted by the EAARL instrument and the return backscatter waveforms from exposed sand and submerged sand targets in the river were completely digitized and stored for postflight processing. The vertical mapping accuracy of the EAARL was evaluated by comparing the ellipsoidal heights computed from ranging measurements made using an EAARL terrestrial algorithm to nearby (<0.5m apart) ground-truth ellipsoidal heights. After correcting for apparent systematic bias in the surveys, the root mean square error of these heights with the terrestrial algorithm in the 2002 survey was 0.11m for the 26 measurements taken on exposed sand and 0.18m for the 59 measurements taken on submerged sand. In the 2005 survey, the root mean square error was 0.18m for 92 measurements taken on exposed sand and 0.24m for 434 measurements on submerged sand. In submerged areas the waveforms were complicated by reflections from the surface, water column entrained turbidity, and potentially the riverbed. When applied to these waveforms, especially in depths greater than 0.4m, the terrestrial algorithm calculated the range above the riverbed. A bathymetric algorithm has been developed to approximate the position of the riverbed in these convolved waveforms and preliminary results are encouraging. ?? 2007 ASCE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydraulic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1061/(ASCE)0733-9429(2007)133:7(838)","issn":"07339429","usgsCitation":"Kinzel, P., Wright, C.W., Nelson, J.M., and Burman, A., 2007, Evaluation of an experimental LiDAR for surveying a shallow, braided, sand-bedded river: Journal of Hydraulic Engineering, v. 133, no. 7, p. 838-842, https://doi.org/10.1061/(ASCE)0733-9429(2007)133:7(838).","startPage":"838","endPage":"842","numberOfPages":"5","costCenters":[],"links":[{"id":211634,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9429(2007)133:7(838)"},{"id":238960,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"133","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0c45e4b0c8380cd52ae2","contributors":{"authors":[{"text":"Kinzel, P.J.","contributorId":27834,"corporation":false,"usgs":true,"family":"Kinzel","given":"P.J.","affiliations":[],"preferred":false,"id":428923,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, C. W. wwright@usgs.gov","contributorId":49758,"corporation":false,"usgs":true,"family":"Wright","given":"C.","email":"wwright@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":false,"id":428924,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, J. M.","contributorId":68687,"corporation":false,"usgs":true,"family":"Nelson","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":428925,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burman, A.R.","contributorId":92050,"corporation":false,"usgs":true,"family":"Burman","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":428926,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030847,"text":"70030847 - 2007 - First evidence of egg deposition by walleye (<i>Sander vitreus</i>) in the Detroit River","interactions":[],"lastModifiedDate":"2016-04-29T09:44:53","indexId":"70030847","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"First evidence of egg deposition by walleye (<i>Sander vitreus</i>) in the Detroit River","docAbstract":"<p><span>The importance of fish spawning habitat in channels connecting the Great Lakes to fishery productivity in those lakes is poorly understood and has not been adequately documented. The Detroit River is a reputed spawning and nursery area for many fish, including walleye (</span><i>Sander vitreus</i><span>) that migrate between adjacent Lakes Erie and St. Clair. During April&ndash;May 2004, near the head of the Detroit River, we collected 136 fish eggs from the bottom of the river on egg mats. We incubated the eggs at the Great Lakes Science Center until they hatched. All eleven larvae that hatched from the eggs were identified as walleye. These eggs and larvae are the first credible scientific evidence that walleye spawn in the Detroit River. Their origin might be a stock of river-spawning walleye. Such a stock of walleye could potentially add resilience to production by walleye stocks that spawn and are harvested in adjacent waters.</span></p>","language":"English","publisher":"International Association for Great Lakes Research","doi":"10.3394/0380-1330(2007)33[512:FEOEDB]2.0.CO;2","issn":"03801330","usgsCitation":"Manny, B., Kennedy, G., Allen, J., and French, J.R., 2007, First evidence of egg deposition by walleye (<i>Sander vitreus</i>) in the Detroit River: Journal of Great Lakes Research, v. 33, no. 2, p. 512-516, https://doi.org/10.3394/0380-1330(2007)33[512:FEOEDB]2.0.CO;2.","productDescription":"5 p.","startPage":"512","endPage":"516","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":238959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1054e4b0c8380cd53c19","contributors":{"authors":[{"text":"Manny, B.A. 0000-0002-4074-9329","orcid":"https://orcid.org/0000-0002-4074-9329","contributorId":6000,"corporation":false,"usgs":true,"family":"Manny","given":"B.A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428919,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kennedy, G.W. 0000-0003-1686-6960","orcid":"https://orcid.org/0000-0003-1686-6960","contributorId":86291,"corporation":false,"usgs":true,"family":"Kennedy","given":"G.W.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428922,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Allen, J.D.","contributorId":57656,"corporation":false,"usgs":true,"family":"Allen","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":428921,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"French, J. R. P. III","contributorId":47574,"corporation":false,"usgs":true,"family":"French","given":"J.","suffix":"III","email":"","middleInitial":"R. P.","affiliations":[],"preferred":false,"id":428920,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030845,"text":"70030845 - 2007 - Population status of North American green sturgeon, Acipenser medirostris","interactions":[],"lastModifiedDate":"2016-05-23T16:17:14","indexId":"70030845","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1528,"text":"Environmental Biology of Fishes","active":true,"publicationSubtype":{"id":10}},"title":"Population status of North American green sturgeon, Acipenser medirostris","docAbstract":"<p>North American green sturgeon, Acipenser medirostris, was petitioned for listing under the Endangered Species Act (ESA). The two questions that need to be answered when considering an ESA listing are; (1) Is the entity a species under the ESA and if so (2) is the \"species\" in danger of extinction or likely to become an endangered species in the foreseeable future throughout all or a significant portion of its range? Green sturgeon genetic analyses showed strong differentiation between northern and southern populations, and therefore, the species was divided into Northern and Southern Distinct Population Segments (DPSs). The Northern DPS includes populations in the Rogue, Klamath-Trinity, and Eel rivers, while the Southern DPS only includes a single population in the Sacramento River. The principal risk factors for green sturgeon include loss of spawning habitat, harvest, and entrainment. The Northern DPS is not considered to be in danger of extinction or likely to become an endangered species in the foreseeable future. The loss of spawning habitat is not large enough to threaten this DPS, although the Eel River has been severely impacted by sedimentation due to poor land use practices and floods. The two main spawning populations in the Rogue and Klamath-Trinity rivers occupy separate basins reducing the potential for loss of the DPS through catastrophic events. Harvest has been substantially reduced and green sturgeon in this DPS do not face substantial entrainment loss. However there are significant concerns due to lack of information, flow and temperature issues, and habitat degradation. The Southern DPS is considered likely to become an endangered species in the foreseeable future. Green sturgeon in this DPS are concentrated into one spawning area outside of their natural habitat in the Sacramento River, making them vulnerable to catastrophic extinction. Green sturgeon spawning areas have been lost from the area above Shasta Dam on the Sacramento River and Oroville Dam on the Feather River. Entrainment of individuals into water diversion projects is an additional source of risk, and the large decline in numbers of green sturgeon entrained since 1986 causes additional concern. ?? 2006 Springer Science+Business Media B.V.</p>","language":"English","publisher":"Springer Netherlands","doi":"10.1007/s10641-006-9062-z","issn":"03781909","usgsCitation":"Adams, P., Grimes, C., Hightower, J., Lindley, S., Moser, M., and Parsley, M., 2007, Population status of North American green sturgeon, Acipenser medirostris: Environmental Biology of Fishes, v. 79, no. 3-4, p. 339-356, https://doi.org/10.1007/s10641-006-9062-z.","productDescription":"18 p.","startPage":"339","endPage":"356","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":211610,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10641-006-9062-z"},{"id":238927,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"3-4","noUsgsAuthors":false,"publicationDate":"2006-07-08","publicationStatus":"PW","scienceBaseUri":"505a7d95e4b0c8380cd7a031","contributors":{"authors":[{"text":"Adams, P.B.","contributorId":22576,"corporation":false,"usgs":true,"family":"Adams","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":428913,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grimes, C.","contributorId":55205,"corporation":false,"usgs":true,"family":"Grimes","given":"C.","email":"","affiliations":[],"preferred":false,"id":428914,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hightower, J.E.","contributorId":16605,"corporation":false,"usgs":true,"family":"Hightower","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":428912,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lindley, S.T.","contributorId":58458,"corporation":false,"usgs":true,"family":"Lindley","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":428915,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Moser, M.L.","contributorId":92006,"corporation":false,"usgs":true,"family":"Moser","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":428917,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Parsley, M.J.","contributorId":59542,"corporation":false,"usgs":true,"family":"Parsley","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":428916,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030843,"text":"70030843 - 2007 - A simple model for calculating tsunami flow speed from tsunami deposits","interactions":[],"lastModifiedDate":"2023-07-27T12:14:16.160085","indexId":"70030843","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3368,"text":"Sedimentary Geology","active":true,"publicationSubtype":{"id":10}},"title":"A simple model for calculating tsunami flow speed from tsunami deposits","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-gulliver text-s\"><div id=\"aep-abstract-id13\" class=\"abstract author\"><div id=\"aep-abstract-sec-id14\"><p>This paper presents a simple model for tsunami sedimentation that can be applied to calculate tsunami flow speed from the thickness and grain size of a tsunami deposit (the inverse problem). For sandy tsunami deposits where grain size and thickness vary gradually in the direction of transport, tsunami sediment transport is modeled as a steady, spatially uniform process. The amount of sediment in suspension is assumed to be in equilibrium with the steady portion of the long period, slowing varying uprush portion of the tsunami. Spatial flow deceleration is assumed to be small and not to contribute significantly to the tsunami deposit. Tsunami deposits are formed from sediment settling from the water column when flow speeds on land go to zero everywhere at the time of maximum tsunami inundation. There is little erosion of the deposit by return flow because it is a slow flow and is concentrated in topographic lows. Variations in grain size of the deposit are found to have more effect on calculated tsunami flow speed than deposit thickness. The model is tested using field data collected at Arop, Papua New Guinea soon after the 1998 tsunami. Speed estimates of 14&nbsp;m/s at 200&nbsp;m inland from the shoreline compare favorably with those from a 1-D inundation model and from application of Bernoulli's principle to water levels on buildings left standing after the tsunami. As evidence that the model is applicable to some sandy tsunami deposits, the model reproduces the observed normal grading and vertical variation in sorting and skewness of a deposit formed by the 1998 tsunami.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/j.sedgeo.2007.01.013","issn":"00370738","usgsCitation":"Jaffe, B.E., and Gelfenbuam, G., 2007, A simple model for calculating tsunami flow speed from tsunami deposits: Sedimentary Geology, v. 200, no. 3-4, p. 347-361, https://doi.org/10.1016/j.sedgeo.2007.01.013.","productDescription":"15 p.","startPage":"347","endPage":"361","numberOfPages":"15","costCenters":[],"links":[{"id":238894,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"200","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e590e4b0c8380cd46e1b","contributors":{"authors":[{"text":"Jaffe, B. E.","contributorId":88327,"corporation":false,"usgs":true,"family":"Jaffe","given":"B.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":428909,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gelfenbuam, G.","contributorId":51536,"corporation":false,"usgs":true,"family":"Gelfenbuam","given":"G.","email":"","affiliations":[],"preferred":false,"id":428908,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030833,"text":"70030833 - 2007 - Improving GPR image resolution in lossy ground using dispersive migration","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70030833","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Improving GPR image resolution in lossy ground using dispersive migration","docAbstract":"As a compact wave packet travels through a dispersive medium, it becomes dilated and distorted. As a result, ground-penetrating radar (GPR) surveys over conductive and/or lossy soils often result in poor image resolution. A dispersive migration method is presented that combines an inverse dispersion filter with frequency-domain migration. The method requires a fully characterized GPR system including the antenna response, which is a function of the local soil properties for ground-coupled antennas. The GPR system response spectrum is used to stabilize the inverse dispersion filter. Dispersive migration restores attenuated spectral components when the signal-to-noise ratio is adequate. Applying the algorithm to simulated data shows that the improved spatial resolution is significant when data are acquired with a GPR system having 120 dB or more of dynamic range, and when the medium has a loss tangent of 0.3 or more. Results also show that dispersive migration provides no significant advantage over conventional migration when the loss tangent is less than 0.3, or when using a GPR system with a small dynamic range. ?? 2007 IEEE.","largerWorkTitle":"IEEE Transactions on Geoscience and Remote Sensing","language":"English","doi":"10.1109/TGRS.2006.888933","issn":"01962892","usgsCitation":"Oden, C., Powers, M., Wright, D., and Olhoeft, G., 2007, Improving GPR image resolution in lossy ground using dispersive migration, <i>in</i> IEEE Transactions on Geoscience and Remote Sensing, v. 45, no. 8, p. 2492-2499, https://doi.org/10.1109/TGRS.2006.888933.","startPage":"2492","endPage":"2499","numberOfPages":"8","costCenters":[],"links":[{"id":211439,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/TGRS.2006.888933"},{"id":238730,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a396de4b0c8380cd61907","contributors":{"authors":[{"text":"Oden, C.P.","contributorId":13413,"corporation":false,"usgs":true,"family":"Oden","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":428879,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powers, M.H.","contributorId":40352,"corporation":false,"usgs":true,"family":"Powers","given":"M.H.","email":"","affiliations":[],"preferred":false,"id":428880,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wright, D.L.","contributorId":88758,"corporation":false,"usgs":true,"family":"Wright","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":428881,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Olhoeft, G.R.","contributorId":10405,"corporation":false,"usgs":true,"family":"Olhoeft","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":428878,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030832,"text":"70030832 - 2007 - Predicting the next storm surge flood","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70030832","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3363,"text":"Sea Technology","active":true,"publicationSubtype":{"id":10}},"title":"Predicting the next storm surge flood","docAbstract":"The Virginia Institute of Marine Science (VIMS), National Weather Services (NWS) Sterling and Wakefield, Weather Forecast Offices (WFO), and the Chesapeake Bay Observing System (CBOS) jointly developed a prototype system of a regional capability to address national problem. The system was developed to integrate high-resolution atmospheric and hydrodynamic and storm surge models, evaluate the ability of the prototype to predict land inundation in the Washington, D.C., and provide flooding results to Emergency Managers (EM) using portive. The system is a potential tool for NWS WFOs to provide support to the EMs, first in the Chesapeake Bay region and then in other coastal regions by applying similar approaches in other coastal and Great Lakes regions. The Chesapeake Inundation Prediction System (CIPS) also is building on the initial prototype to predict the combined effects of storm surge and tidal and river flow inundation in the Chesapeake Bay and its tributaries.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sea Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00933651","usgsCitation":"Stamey, B., Wang, H., and Koterba, M., 2007, Predicting the next storm surge flood: Sea Technology, v. 48, no. 8, p. 10-15.","startPage":"10","endPage":"15","numberOfPages":"6","costCenters":[],"links":[{"id":238729,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81d2e4b0c8380cd7b759","contributors":{"authors":[{"text":"Stamey, B.","contributorId":12190,"corporation":false,"usgs":true,"family":"Stamey","given":"B.","email":"","affiliations":[],"preferred":false,"id":428875,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wang, Hongfang","contributorId":92635,"corporation":false,"usgs":true,"family":"Wang","given":"Hongfang","email":"","affiliations":[],"preferred":false,"id":428876,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koterba, M.","contributorId":102199,"corporation":false,"usgs":true,"family":"Koterba","given":"M.","email":"","affiliations":[],"preferred":false,"id":428877,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030817,"text":"70030817 - 2007 - Clean coal initiatives in Indiana","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030817","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2039,"text":"International Journal of Energy Sector Management","active":true,"publicationSubtype":{"id":10}},"title":"Clean coal initiatives in Indiana","docAbstract":"Purpose - Indiana is listed among the top ten coal states in the USA and annually mines about 35 million short tons (million tons) of coal from the vast reserves of the US Midwest Illinois Coal Basin. The implementation and commercialization of clean coal technologies is important to the economy of the state and has a significant role in the state's energy plan for increasing the use of the state's natural resources. Coal is a substantial Indiana energy resource and also has stable and relatively low costs, compared with the increasing costs of other major fuels. This indigenous energy source enables the promotion of energy independence. The purpose of this paper is to outline the significance of clean coal projects for achieving this objective. Design/methodology/approach - The paper outlines the clean coal initiatives being taken in Indiana and the research carried out at the Indiana Center for Coal Technology Research. Findings - Clean coal power generation and coal for transportation fuels (coal-to-liquids - CTL) are two major topics being investigated in Indiana. Coking coal, data compilation of the bituminous coal qualities within the Indiana coal beds, reducing dependence on coal imports, and provision of an emissions free environment are important topics to state legislators. Originality/value - Lessons learnt from these projects will be of value to other states and countries.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Energy Sector Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1108/17506220710738623","issn":"17506220","usgsCitation":"Bowen, B., Irwin, M., Sparrow, F., Mastalerz, M., Yu, Z., and Kramer, R., 2007, Clean coal initiatives in Indiana: International Journal of Energy Sector Management, v. 1, no. 1, p. 96-108, https://doi.org/10.1108/17506220710738623.","startPage":"96","endPage":"108","numberOfPages":"13","costCenters":[],"links":[{"id":211662,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1108/17506220710738623"},{"id":238994,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f63fe4b0c8380cd4c633","contributors":{"authors":[{"text":"Bowen, B.H.","contributorId":82920,"corporation":false,"usgs":true,"family":"Bowen","given":"B.H.","email":"","affiliations":[],"preferred":false,"id":428820,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irwin, M.W.","contributorId":49595,"corporation":false,"usgs":true,"family":"Irwin","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":428817,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sparrow, F.T.","contributorId":13430,"corporation":false,"usgs":true,"family":"Sparrow","given":"F.T.","email":"","affiliations":[],"preferred":false,"id":428815,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":428819,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yu, Z.","contributorId":32696,"corporation":false,"usgs":true,"family":"Yu","given":"Z.","email":"","affiliations":[],"preferred":false,"id":428816,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kramer, R.A.","contributorId":60435,"corporation":false,"usgs":true,"family":"Kramer","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":428818,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030813,"text":"70030813 - 2007 - Forecasting probabilistic seismic shaking for greater Tokyo from 400 years of intensity observations","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030813","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1436,"text":"Earthquake Spectra","active":true,"publicationSubtype":{"id":10}},"title":"Forecasting probabilistic seismic shaking for greater Tokyo from 400 years of intensity observations","docAbstract":"The long recorded history of earthquakes in Japan affords an opportunity to forecast seismic shaking exclusively from past shaking. We calculate the time-averaged (Poisson) probability of severe shaking by using more than 10,000 intensity observations recorded since AD 1600 in a 350 km-wide box centered on Tokyo. Unlike other hazard-assessment methods, source and site effects are included without modeling, and we do not need to know the size or location of any earthquake nor the location and slip rate of any fault. The two key assumptions are that the slope of the observed frequency-intensity relation at every site is the same, and that the 400-year record is long enough to encompass the full range of seismic behavior. Tests we conduct here suggest that both assumptions are sound. The resulting 30-year probability of IJMA ??? 6 shaking (??? PGA ??? 0.4 g or MMI ??? IX) is 30%-40% in Tokyo, Kawasaki, and Yokohama, and 10% 15% in Chiba and Tsukuba. This result means that there is a 30% chance that 4 million people will be subjected to IJMA ??? 6 shaking during an average 30-year period. We also produce exceedance maps of PGA for building-code regulations, and calculate short-term hazard associated with a hypothetical catastrophe bond. Our results resemble an independent assessment developed from conventional seismic hazard analysis for greater Tokyo. ?? 2007, Earthquake Engineering Research Institute.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earthquake Spectra","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1193/1.2753504","issn":"87552930","usgsCitation":"Bozkurt, S., Stein, R., and Toda, S., 2007, Forecasting probabilistic seismic shaking for greater Tokyo from 400 years of intensity observations: Earthquake Spectra, v. 23, no. 3, p. 525-546, https://doi.org/10.1193/1.2753504.","startPage":"525","endPage":"546","numberOfPages":"22","costCenters":[],"links":[{"id":211609,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1193/1.2753504"},{"id":238926,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-08-01","publicationStatus":"PW","scienceBaseUri":"505a1318e4b0c8380cd54507","contributors":{"authors":[{"text":"Bozkurt, S.B.","contributorId":14188,"corporation":false,"usgs":true,"family":"Bozkurt","given":"S.B.","email":"","affiliations":[],"preferred":false,"id":428796,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stein, R.S.","contributorId":8875,"corporation":false,"usgs":true,"family":"Stein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":428795,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Toda, S.","contributorId":102228,"corporation":false,"usgs":true,"family":"Toda","given":"S.","email":"","affiliations":[],"preferred":false,"id":428797,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030811,"text":"70030811 - 2007 - Loess sedimentation in Tibet: provenance, processes, and link with Quaternary glaciations","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030811","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Loess sedimentation in Tibet: provenance, processes, and link with Quaternary glaciations","docAbstract":"Well-preserved loess deposits are found on the foothills of mountains along the middle reaches of the Yarlung Zangbo River in southern Tibet. Optically stimulated luminescence (OSL) dating is used to determine loess ages by applying the single-aliquot regeneration technique. Geochemical, mineralogical, and granulometric measurements were carried out to allow a comparison between loess from Tibet and the Chinese Loess Plateau. Our results demonstrate that (i) the loess deposits have a basal age of 13-11 ka, suggesting they accumulated after the last deglaciation, (ii) loess in southern Tibet has a \"glacial\" origin, resulting from eolian sorting of glaciofluvial outwash deposits from braided river channels or alluvial fans by local near-surface winds, and (iii) the present loess in the interior of Tibet has accumulated since the last deglaciation when increased monsoonal circulation provided an increased vegetation cover that was sufficient for trapping eolian silt. The lack of full-glacial loess is either due to minimal vegetation cover or possibly due to the erosion of loess as glaciofluvial outwash during the beginning of each interglacial. Such processes would have been repeated during each glacial-interglacial cycle of the Quaternary. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.quascirev.2007.05.003","issn":"02773791","usgsCitation":"Sun, J., Li, S., Muhs, D., and Li, B., 2007, Loess sedimentation in Tibet: provenance, processes, and link with Quaternary glaciations: Quaternary Science Reviews, v. 26, no. 17-18, p. 2265-2280, https://doi.org/10.1016/j.quascirev.2007.05.003.","startPage":"2265","endPage":"2280","numberOfPages":"16","costCenters":[],"links":[{"id":238924,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211607,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quascirev.2007.05.003"}],"volume":"26","issue":"17-18","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a493ce4b0c8380cd68449","contributors":{"authors":[{"text":"Sun, Jielun","contributorId":33443,"corporation":false,"usgs":true,"family":"Sun","given":"Jielun","email":"","affiliations":[],"preferred":false,"id":428785,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Li, S.-H.","contributorId":45884,"corporation":false,"usgs":true,"family":"Li","given":"S.-H.","email":"","affiliations":[],"preferred":false,"id":428786,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Muhs, D.R. 0000-0001-7449-251X","orcid":"https://orcid.org/0000-0001-7449-251X","contributorId":61460,"corporation":false,"usgs":true,"family":"Muhs","given":"D.R.","affiliations":[],"preferred":false,"id":428787,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Li, B.","contributorId":85395,"corporation":false,"usgs":true,"family":"Li","given":"B.","email":"","affiliations":[],"preferred":false,"id":428788,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030803,"text":"70030803 - 2007 - Simultaneous determination of Cr(iii) and Cr(vi) using reversed-phased ion-pairing liquid chromatography with dynamic reaction cell inductively coupled plasma mass spectrometry","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70030803","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2155,"text":"Journal of Analytical Atomic Spectrometry","active":true,"publicationSubtype":{"id":10}},"title":"Simultaneous determination of Cr(iii) and Cr(vi) using reversed-phased ion-pairing liquid chromatography with dynamic reaction cell inductively coupled plasma mass spectrometry","docAbstract":"A method for the simultaneous determination of Cr(iii) and Cr(vi) species in waters, soil leachates and synthetic bio-fluids is described. The method uses reversed-phase ion-pairing liquid chromatography to separate the chromium species and a dynamic reaction cell (DRC??) equipped ICP-MS for detection of chromium. Separation of the chromium species is carried out in less than 2 min. Cr(iii) is complexed with ethylenediaminetetraacetic acid (EDTA) prior to separation by mixing samples with the mobile phase containing 2.0 mM tetrabutylammonium hydroxide (TBAOH), 0.5 mM EDTA (dipotassium salt), and 5% (vol/vol) methanol, adjusted to pH 7.6. The interfering 40Ar 12C+ background peak at mass 52 was reduced by over four orders of magnitude to less than 200 cps by using 0.65 mL min-1 ammonia as a reaction gas and an RPq setting on the DRC of 0.75. Method detection limits (MDLs) of 0.09 ??g L-1 for Cr(iii) and 0.06 ??g L-1 for Cr(vi) were obtained based on peak areas at mass 52 for 50 ??L injections of low level spikes. Reproducibility at 2 ??g L-1 was 3% RSD for 5 replicate injections. The tolerance of the method to various levels of common cations and anions found in natural waters and to matrix constituents found in soil leachates and simulated gastric and lung fluids was tested by performing spike recovery calculations for a variety of samples. ?? The Royal Society of Chemistry.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Analytical Atomic Spectrometry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1039/b704597b","issn":"02679477","usgsCitation":"Wolf, R., Morrison, J., and Goldhaber, M., 2007, Simultaneous determination of Cr(iii) and Cr(vi) using reversed-phased ion-pairing liquid chromatography with dynamic reaction cell inductively coupled plasma mass spectrometry: Journal of Analytical Atomic Spectrometry, v. 22, no. 9, p. 1051-1060, https://doi.org/10.1039/b704597b.","startPage":"1051","endPage":"1060","numberOfPages":"10","costCenters":[],"links":[{"id":211499,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/b704597b"},{"id":238795,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b90d0e4b08c986b319682","contributors":{"authors":[{"text":"Wolf, R.E.","contributorId":11827,"corporation":false,"usgs":true,"family":"Wolf","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":428756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morrison, J.M.","contributorId":9063,"corporation":false,"usgs":true,"family":"Morrison","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":428755,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldhaber, M. B. 0000-0002-1785-4243","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":103280,"corporation":false,"usgs":true,"family":"Goldhaber","given":"M. B.","affiliations":[],"preferred":false,"id":428757,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030802,"text":"70030802 - 2007 - An automated approach to detecting signals in electroantennogram data","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70030802","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2205,"text":"Journal of Chemical Ecology","active":true,"publicationSubtype":{"id":10}},"title":"An automated approach to detecting signals in electroantennogram data","docAbstract":"Coupled gas chromatography/electroantennographic detection (GC-EAD) is a widely used method for identifying insect olfactory stimulants present in mixtures of volatiles, and it can greatly accelerate the identification of insect semiochemicals. In GC-EAD, voltage changes across an insect's antenna are measured while the antenna is exposed to compounds eluting from a gas chromatograph. The antenna thus serves as a selective GC detector whose output can be compared to that of a \"general\" GC detector, commonly a flame ionization detector. Appropriate interpretation of GC-EAD results requires that olfaction-related voltage changes in the antenna be distinguishable from background noise that arises inevitably from antennal preparations and the GC-EAD-associated hardware. In this paper, we describe and compare mathematical algorithms for discriminating olfaction-generated signals in an EAD trace from background noise. The algorithms amplify signals by recognizing their characteristic shape and wavelength while suppressing unstructured noise. We have found these algorithms to be both powerful and highly discriminatory even when applied to noisy traces where the signals would be difficult to discriminate by eye. This new methodology removes operator bias as a factor in signal identification, can improve realized sensitivity of the EAD system, and reduces the number of runs required to confirm the identity of an olfactory stimulant. ?? 2007 Springer Science+Business Media, LLC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Chemical Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10886-007-9338-6","issn":"00980331","usgsCitation":"Slone, D., and Sullivan, B., 2007, An automated approach to detecting signals in electroantennogram data: Journal of Chemical Ecology, v. 33, no. 9, p. 1748-1762, https://doi.org/10.1007/s10886-007-9338-6.","startPage":"1748","endPage":"1762","numberOfPages":"15","costCenters":[],"links":[{"id":477239,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.400.2641","text":"External Repository"},{"id":211498,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10886-007-9338-6"},{"id":238794,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"9","noUsgsAuthors":false,"publicationDate":"2007-08-01","publicationStatus":"PW","scienceBaseUri":"5059ea1fe4b0c8380cd4864e","contributors":{"authors":[{"text":"Slone, D. H. 0000-0002-9903-9727","orcid":"https://orcid.org/0000-0002-9903-9727","contributorId":33040,"corporation":false,"usgs":true,"family":"Slone","given":"D. H.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":428753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sullivan, B.T.","contributorId":91690,"corporation":false,"usgs":true,"family":"Sullivan","given":"B.T.","email":"","affiliations":[],"preferred":false,"id":428754,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}