Coeur d'Alene Lake in northern Idaho is fed by two major rivers: the Coeur d'Alene River from the east and the St. Joe River from the south, with the Spokane River as its outlet to the north. This phosphorus-limited lake has been subjected to decades of mining (primarily for zinc and silver) and other anthropogenic inputs. A 32 full-factorial experimental design was used to examine the interactive effects of free (uncomplexed) zinc ion and dissolved-orthophosphate concentrations on phytoplankton that were isolated from two sites along a longitudinal zinc-concentration gradient in Coeur d'Alene Lake. The two sites displayed different dominant taxa. Chlorella minutissima, a dominant species near the southern St. Joe River inlet, exhibited greater sensitivity to free Zn ions than Asterionella formosa, collected nearer the Coeur d'Alene River mouth with elevated dissolved-zinc concentrations. Empirical phytoplankton-response models were generated to describe phytoplankton growth in response to remediation strategies in the surrounding watershed. If dissolved Zn can be reduced in the water column from >500 nM (i.e., current concentrations near and down stream of the Coeur d'Alene River plume) to <3 nM (i.e., concentrations near the southern St. Joe River inlet) such that the lake is truly phosphorus limited, management of phosphorus inputs by surrounding communities will ultimately determine the limnologic state of the lake.
","language":"English","publisher":"American Chemical Society","doi":"10.1021/es062923l","issn":"0013936X","usgsCitation":"Kuwabara, J.S., Topping, B.R., Woods, P.F., and Carter, J.L., 2007, Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho: Environmental Science & Technology, v. 41, no. 8, p. 2811-2817, https://doi.org/10.1021/es062923l.","productDescription":"7 p.","startPage":"2811","endPage":"2817","numberOfPages":"7","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240650,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"Coeur d'Alene Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.81625366210938,\n 47.68018294648414\n ],\n [\n -116.707763671875,\n 47.66538735632654\n ],\n [\n -116.64596557617188,\n 47.635783590864854\n ],\n [\n -116.64321899414062,\n 47.61079236060622\n ],\n [\n -116.7572021484375,\n 47.61264397257417\n ],\n [\n -116.7681884765625,\n 47.57652571374621\n ],\n [\n -116.75170898437501,\n 47.54038252373696\n ],\n [\n -116.8231201171875,\n 47.484728927366504\n ],\n [\n -116.77780151367186,\n 47.4828727909934\n ],\n [\n -116.75857543945312,\n 47.4828727909934\n ],\n [\n -116.75445556640625,\n 47.45223707184017\n ],\n [\n -116.70639038085938,\n 47.40764414848437\n ],\n [\n -116.67892456054688,\n 47.35836223484991\n ],\n [\n -116.69540405273438,\n 47.33789206010502\n ],\n [\n -116.77230834960938,\n 47.34905859411952\n ],\n [\n -116.78741455078125,\n 47.37975438400816\n ],\n [\n -116.79153442382812,\n 47.41322033016902\n ],\n [\n -116.88079833984375,\n 47.462450962249356\n ],\n [\n -116.94671630859375,\n 47.45687999525879\n ],\n [\n -116.94259643554688,\n 47.47823216312885\n ],\n [\n -116.90826416015625,\n 47.51349065484327\n ],\n [\n -116.87667846679689,\n 47.516273211681984\n ],\n [\n -116.82861328125001,\n 47.58486290927609\n ],\n [\n -116.8780517578125,\n 47.592272635166125\n ],\n [\n -116.8780517578125,\n 47.61264397257417\n ],\n [\n -116.83135986328125,\n 47.61819841513311\n ],\n [\n -116.80938720703124,\n 47.62190104905555\n ],\n [\n -116.82861328125001,\n 47.65613798222679\n ],\n [\n -116.83959960937499,\n 47.67186094318796\n ],\n [\n -116.81625366210938,\n 47.68018294648414\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"41","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-03-09","publicationStatus":"PW","scienceBaseUri":"505a13c1e4b0c8380cd54782","contributors":{"authors":[{"text":"Kuwabara, James S. 0000-0003-2502-1601 kuwabara@usgs.gov","orcid":"https://orcid.org/0000-0003-2502-1601","contributorId":3374,"corporation":false,"usgs":true,"family":"Kuwabara","given":"James","email":"kuwabara@usgs.gov","middleInitial":"S.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":424758,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Topping, Brent R. 0000-0002-7887-4221 btopping@usgs.gov","orcid":"https://orcid.org/0000-0002-7887-4221","contributorId":1484,"corporation":false,"usgs":true,"family":"Topping","given":"Brent","email":"btopping@usgs.gov","middleInitial":"R.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":424760,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Woods, Paul F.","contributorId":82273,"corporation":false,"usgs":true,"family":"Woods","given":"Paul","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":424759,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Carter, James L. 0000-0002-0104-9776 jlcarter@usgs.gov","orcid":"https://orcid.org/0000-0002-0104-9776","contributorId":3278,"corporation":false,"usgs":true,"family":"Carter","given":"James","email":"jlcarter@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":424757,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029894,"text":"70029894 - 2007 - Deriving a light use efficiency model from eddy covariance flux data for predicting daily gross primary production across biomes","interactions":[],"lastModifiedDate":"2017-04-12T16:04:03","indexId":"70029894","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":681,"text":"Agricultural and Forest Meteorology","active":true,"publicationSubtype":{"id":10}},"title":"Deriving a light use efficiency model from eddy covariance flux data for predicting daily gross primary production across biomes","docAbstract":"The quantitative simulation of gross primary production (GPP) at various spatial and temporal scales has been a major challenge in quantifying the global carbon cycle. We developed a light use efficiency (LUE) daily GPP model from eddy covariance (EC) measurements. The model, called EC-LUE, is driven by only four variables: normalized difference vegetation index (NDVI), photosynthetically active radiation (PAR), air temperature, and the Bowen ratio of sensible to latent heat flux (used to calculate moisture stress). The EC-LUE model relies on two assumptions: First, that the fraction of absorbed PAR (fPAR) is a linear function of NDVI; Second, that the realized light use efficiency, calculated from a biome-independent invariant potential LUE, is controlled by air temperature or soil moisture, whichever is most limiting. The EC-LUE model was calibrated and validated using 24,349 daily GPP estimates derived from 28 eddy covariance flux towers from the AmeriFlux and EuroFlux networks, covering a variety of forests, grasslands and savannas. The model explained 85% and 77% of the observed variations of daily GPP for all the calibration and validation sites, respectively. A comparison with GPP calculated from the Moderate Resolution Imaging Spectroradiometer (MODIS) indicated that the EC-LUE model predicted GPP that better matched tower data across these sites. The realized LUE was predominantly controlled by moisture conditions throughout the growing season, and controlled by temperature only at the beginning and end of the growing season. The EC-LUE model is an alternative approach that makes it possible to map daily GPP over large areas because (1) the potential LUE is invariant across various land cover types and (2) all driving forces of the model can be derived from remote sensing data or existing climate observation networks.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.agrformet.2006.12.001","issn":"01681923","usgsCitation":"Yuan, W., Liu, S., Zhou, G., Tieszen, L., Baldocchi, D., Bernhofer, C., Gholz, H., Goldstein, A.H., Goulden, M.L., Hollinger, D., Hu, Y., Law, B.E., Stoy, P., Vesala, T., and Wofsy, S., 2007, Deriving a light use efficiency model from eddy covariance flux data for predicting daily gross primary production across biomes: Agricultural and Forest Meteorology, v. 143, no. 3-4, p. 189-207, https://doi.org/10.1016/j.agrformet.2006.12.001.","productDescription":"19 p.","startPage":"189","endPage":"207","numberOfPages":"19","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":476983,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/0nv498zp","text":"External Repository"},{"id":240683,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213094,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.agrformet.2006.12.001"}],"volume":"143","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fedee4b0c8380cd4ef81","contributors":{"authors":[{"text":"Yuan, W.","contributorId":35955,"corporation":false,"usgs":true,"family":"Yuan","given":"W.","email":"","affiliations":[],"preferred":false,"id":424791,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, S.","contributorId":93170,"corporation":false,"usgs":true,"family":"Liu","given":"S.","affiliations":[],"preferred":false,"id":424798,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhou, G.","contributorId":12604,"corporation":false,"usgs":true,"family":"Zhou","given":"G.","email":"","affiliations":[],"preferred":false,"id":424786,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tieszen, L.L.","contributorId":24046,"corporation":false,"usgs":true,"family":"Tieszen","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":424789,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Baldocchi, D.","contributorId":40368,"corporation":false,"usgs":true,"family":"Baldocchi","given":"D.","affiliations":[],"preferred":false,"id":424793,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bernhofer, C.","contributorId":37964,"corporation":false,"usgs":true,"family":"Bernhofer","given":"C.","email":"","affiliations":[],"preferred":false,"id":424792,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gholz, H.","contributorId":107938,"corporation":false,"usgs":true,"family":"Gholz","given":"H.","email":"","affiliations":[],"preferred":false,"id":424799,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Goldstein, Allen H.","contributorId":7452,"corporation":false,"usgs":true,"family":"Goldstein","given":"Allen","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":424785,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Goulden, M. L.","contributorId":35095,"corporation":false,"usgs":false,"family":"Goulden","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":424790,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hollinger, D.Y.","contributorId":86567,"corporation":false,"usgs":true,"family":"Hollinger","given":"D.Y.","email":"","affiliations":[],"preferred":false,"id":424797,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hu, Y.","contributorId":68474,"corporation":false,"usgs":true,"family":"Hu","given":"Y.","email":"","affiliations":[],"preferred":false,"id":424796,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Law, B. E.","contributorId":17586,"corporation":false,"usgs":true,"family":"Law","given":"B.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":424787,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Stoy, Paul C.","contributorId":60860,"corporation":false,"usgs":true,"family":"Stoy","given":"Paul C.","affiliations":[],"preferred":false,"id":424795,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Vesala, T.","contributorId":21355,"corporation":false,"usgs":true,"family":"Vesala","given":"T.","affiliations":[],"preferred":false,"id":424788,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Wofsy, S.C.","contributorId":44699,"corporation":false,"usgs":true,"family":"Wofsy","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":424794,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}} ,{"id":70029952,"text":"70029952 - 2007 - Wave field features of shallow vertical discontinuity and their application in non-destructive detection","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70029952","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2165,"text":"Journal of Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Wave field features of shallow vertical discontinuity and their application in non-destructive detection","docAbstract":"The geotechnical integrity of critical infrastructure can be seriously compromised by the presence of fractures or crevices. Non-destructive techniques to accurately detect fractures in critical infrastructure such as dams and highways could be of significant benefit to the geotechnical industry. This paper investigates the application of shallow seismic and georadar methods to the detection of a vertical discontinuity using numerical simulations. The objective is to address the kinematical analysis of a vertical discontinuity, determine the resulting wave field characteristics, and provide the basis for determining the existence of vertical discontinuities based on the recorded signals. Simulation results demonstrate that: (1) A reflection from a vertical discontinuity produces a hyperbolic feature on a seismic or georadar profile; (2) In order for a reflection from a vertical discontinuity to be produced, a reflecting horizon below the discontinuity must exist, the offset between source and receiver (x0) must be non-zero, on the same side of the vertical discontinuity; (3) The range of distances from the vertical discontinuity where a reflection event is observed is proportional to its length and to x0; (4) Should the vertical crevice (or fracture) pass through a reflecting horizon, dual hyperbolic features can be observed on the records, and this can be used as a determining factor that the vertical crevice passes through the interface; and (5) diffractions from the edges of the discontinuity can be recorded with relatively smaller amplitude than reflections and their ranges are not constrained by the length of discontinuity. If the length of discontinuity is short enough, diffractions are the dominant feature. Real-world examples show that the shallow seismic reflection method and the georadar method are capable of recording the hyperbolic feature, which can be interpreted as vertical discontinuity. Thus, these methods show some promise as effective non-destructive detection methods for locating vertical discontinuities (e.g., fractures or crevices) in infrastructure such as dams and highway pavement. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jappgeo.2006.12.001","issn":"09269851","usgsCitation":"Liu, J., Xia, J., Luo, Y., Chen, C., Li, X., and Huang, Y., 2007, Wave field features of shallow vertical discontinuity and their application in non-destructive detection: Journal of Applied Geophysics, v. 62, no. 3, p. 270-280, https://doi.org/10.1016/j.jappgeo.2006.12.001.","startPage":"270","endPage":"280","numberOfPages":"11","costCenters":[],"links":[{"id":212983,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jappgeo.2006.12.001"},{"id":240559,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bcf94e4b08c986b32e99c","contributors":{"authors":[{"text":"Liu, J.","contributorId":23672,"corporation":false,"usgs":false,"family":"Liu","given":"J.","affiliations":[],"preferred":false,"id":425038,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":425041,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luo, Y.","contributorId":28417,"corporation":false,"usgs":true,"family":"Luo","given":"Y.","email":"","affiliations":[],"preferred":false,"id":425039,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chen, C.","contributorId":98490,"corporation":false,"usgs":true,"family":"Chen","given":"C.","email":"","affiliations":[],"preferred":false,"id":425043,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Li, X.","contributorId":67635,"corporation":false,"usgs":true,"family":"Li","given":"X.","email":"","affiliations":[],"preferred":false,"id":425042,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Huang, Y.","contributorId":62000,"corporation":false,"usgs":true,"family":"Huang","given":"Y.","email":"","affiliations":[],"preferred":false,"id":425040,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70029897,"text":"70029897 - 2007 - Sequence stratigraphic controls on synsedimentary cementation and preservation of dinosaur tracks: Example from the lower Cretaceous, (Upper Albian) Dakota Formation, Southeastern Nebraska, U.S.A.","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029897","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Sequence stratigraphic controls on synsedimentary cementation and preservation of dinosaur tracks: Example from the lower Cretaceous, (Upper Albian) Dakota Formation, Southeastern Nebraska, U.S.A.","docAbstract":"A thin cemented sandstone bed in the Upper Albian Dakota Formation of southeastern Nebraska contains the first dinosaur tracks to be described from the state. Of equal importance to the tracks are stable-isotope (C, O) analyses of cements in the track bed, especially in the context of data derived from generally correlative strata (sandstones and sphaerosiderite-bearing paleosols) in the region. These data provide the framework for interpretations of paleoenvironmental conditions, as well as a novel approach to understanding mechanisms of terrestrial vertebrate track preservation. High minus-cement-porosity (> 47%) and low grain-to-grain contacts (???2.5) in the track bed indicate early (pre-compaction) lithification. Although phreatic cements dominate, the history of cementation within this stratigraphic interval is complex. Cathodoluminescence petrography reveals two distinct calcite zones in the track-bearing horizon and four cement zones in stratigraphically equivalent strata from a nearby section. The earliest calcite cements from both localities are likely coeval because they exhibit identical positive covariant trends (??18O values of - 9.89 to - 6.32??? and ??13C values of - 28.01 to - 19.33??? VPDB) and record mixing of brackish and meteoric groundwaters. All other calcite cements define meteoric calcite lines with ??18O values clustering around - 9.42??? and - 8.21??? VPDB from the track-bearing horizon, and - 7.74???, - 5.81???, and - 3.95??? VPDB from the neighboring section. Distinct meteoric sphaerosiderite lines from roughly correlative paleosols serve as a proxy for locally recharged groundwaters. Back-calculated paleogroundwater ??18O estimates from paleosol sphaerosiderites range from - 7.4 to - 4.2??? SMOW; whereas, meteoric calcite lines from the track horizon are generally more depleted. Differences in cement ??18O values record changes in paleogroundwater recharge areas over time. Early calcite cements indicate mixing of fresh and brackish groundwaters during the syndepositional lithification of the track horizon. Later calcite cements, however, indicate recharge from a larger catchment basin that extended far inland. Therefore, the cements likely record a rise and subsequent fall in relative sea level. We conclude that scrutiny of the cement isotope geochemistry of genetically significant surfaces, especially track beds, can provide new data for interpreting sea level change. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaeogeography, Palaeoclimatology, Palaeoecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.palaeo.2006.10.013","issn":"00310182","usgsCitation":"Phillips, P., Ludvigson, G.A., Matthew, J.R., Gonzalez, L.A., Brenner, R.L., and Witzke, B., 2007, Sequence stratigraphic controls on synsedimentary cementation and preservation of dinosaur tracks: Example from the lower Cretaceous, (Upper Albian) Dakota Formation, Southeastern Nebraska, U.S.A.: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 246, no. 2-4, p. 367-389, https://doi.org/10.1016/j.palaeo.2006.10.013.","startPage":"367","endPage":"389","numberOfPages":"23","costCenters":[],"links":[{"id":477262,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.unl.edu/geosciencefacpub/297","text":"External Repository"},{"id":240212,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212687,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2006.10.013"}],"volume":"246","issue":"2-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d4be4b08c986b318327","contributors":{"authors":[{"text":"Phillips, P.L. Jr.","contributorId":29216,"corporation":false,"usgs":true,"family":"Phillips","given":"P.L.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":424813,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ludvigson, Greg A.","contributorId":80803,"corporation":false,"usgs":true,"family":"Ludvigson","given":"Greg","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":424814,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Matthew, Joeckel R.","contributorId":101460,"corporation":false,"usgs":true,"family":"Matthew","given":"Joeckel","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":424816,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gonzalez, Luis A.","contributorId":20922,"corporation":false,"usgs":true,"family":"Gonzalez","given":"Luis","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":424812,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brenner, Richard L.","contributorId":94457,"corporation":false,"usgs":false,"family":"Brenner","given":"Richard","email":"","middleInitial":"L.","affiliations":[{"id":13387,"text":"Alaska Department of Fish and Game - Commercial Fisheries, P.O. Box 669, Cordova, AK 99574","active":true,"usgs":false}],"preferred":false,"id":424815,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Witzke, B.J.","contributorId":12976,"corporation":false,"usgs":true,"family":"Witzke","given":"B.J.","affiliations":[],"preferred":false,"id":424811,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70029898,"text":"70029898 - 2007 - Global warming and climate forcing by recent albedo changes on Mars","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029898","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Global warming and climate forcing by recent albedo changes on Mars","docAbstract":"For hundreds of years, scientists have tracked the changing appearance of Mars, first by hand drawings and later by photographs. Because of this historical record, many classical albedo patterns have long been known to shift in appearance over time. Decadal variations of the martian surface albedo are generally attributed to removal and deposition of small amounts of relatively bright dust on the surface. Large swaths of the surface (up to 56 million km2) have been observed to darken or brighten by 10 per cent or more. It is unknown, however, how these albedo changes affect wind circulation, dust transport and the feedback between these processes and the martian climate. Here we present predictions from a Mars general circulation model, indicating that the observed interannual albedo alterations strongly influence the martian environment. Results indicate enhanced wind stress in recently darkened areas and decreased wind stress in brightened areas, producing a positive feedback system in which the albedo changes strengthen the winds that generate the changes. The simulations also predict a net annual global warming of surface air temperatures by ???0.65 K, enhancing dust lifting by increasing the likelihood of dust devil generation. The increase in global dust lifting by both wind stress and dust devils may affect the mechanisms that trigger large dust storm initiation, a poorly understood phenomenon, unique to Mars. In addition, predicted increases in summertime air temperatures at high southern latitudes would contribute to the rapid and steady scarp retreat that has been observed in the south polar residual ice for the past four Mars years. Our results suggest that documented albedo changes affect recent climate change and large-scale weather patterns on Mars, and thus albedo variations are a necessary component of future atmospheric and climate studies. ??2007 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/nature05718","issn":"00280836","usgsCitation":"Fenton, L., Geissler, P., and Haberle, R., 2007, Global warming and climate forcing by recent albedo changes on Mars: Nature, v. 446, no. 7136, p. 646-649, https://doi.org/10.1038/nature05718.","startPage":"646","endPage":"649","numberOfPages":"4","costCenters":[],"links":[{"id":240213,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212688,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/nature05718"}],"volume":"446","issue":"7136","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2964e4b0c8380cd5a8eb","contributors":{"authors":[{"text":"Fenton, L.K.","contributorId":102189,"corporation":false,"usgs":true,"family":"Fenton","given":"L.K.","affiliations":[],"preferred":false,"id":424819,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Geissler, P.E.","contributorId":67636,"corporation":false,"usgs":true,"family":"Geissler","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":424817,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haberle, R.M.","contributorId":94461,"corporation":false,"usgs":true,"family":"Haberle","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":424818,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029899,"text":"70029899 - 2007 - A post-Calumet shoreline along southern Lake Michigan","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029899","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2411,"text":"Journal of Paleolimnology","active":true,"publicationSubtype":{"id":10}},"title":"A post-Calumet shoreline along southern Lake Michigan","docAbstract":"The southern shore of Lake Michigan is the type area for many of ancestral Lake Michigan's late Pleistocene lake phases, but coastal deposits and features of the Algonquin phase of northern Lake Michigan, Lake Huron, and Lake Superior are not recognized in the area. Isostatic rebound models suggest that Algonquin phase deposits should be 100 m or more below modern lake level. A relict shoreline, however, exists along the lakeward margin of the Calumet Beach that was erosional west of Deep River and depositional east of the river. For this post-Calumet shoreline, the elevation of basal foreshore deposits east of Deep River and the base of the scarp west of Deep River indicate a slightly westward dipping water plane that is centered at ???184 m above mean sea level. Basal foreshore elevations also indicate that lake level fell ???2 m during the development of the shoreline. The pooled mean of radiocarbon dates from the surface of the peat below post-Calumet shoreline foreshore deposits indicate that the lake transgressed over the peat at 10,560 ?? 70 years B.P. Pollen assemblages from the peat are consistent with this age. The elevation and age of the post-Calumet shoreline are similar to the Main Algonquin phase of Lake Huron. Recent isostatic rebound models do not adequately address a high-elevation Algonquin-age shoreline along the southern shore of Lake Michigan, but the Goldthwait (1908) hinge-line model does. ?? 2006 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Paleolimnology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10933-006-9046-1","issn":"09212728","usgsCitation":"Capps, D., Thompson, T., and Booth, R., 2007, A post-Calumet shoreline along southern Lake Michigan: Journal of Paleolimnology, v. 37, no. 3, p. 395-409, https://doi.org/10.1007/s10933-006-9046-1.","startPage":"395","endPage":"409","numberOfPages":"15","costCenters":[],"links":[{"id":212720,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10933-006-9046-1"},{"id":240248,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-12-13","publicationStatus":"PW","scienceBaseUri":"5059e4e5e4b0c8380cd469e0","contributors":{"authors":[{"text":"Capps, D.K.","contributorId":62833,"corporation":false,"usgs":true,"family":"Capps","given":"D.K.","email":"","affiliations":[],"preferred":false,"id":424821,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, T.A.","contributorId":73226,"corporation":false,"usgs":true,"family":"Thompson","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":424822,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Booth, R.K.","contributorId":47122,"corporation":false,"usgs":true,"family":"Booth","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":424820,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029900,"text":"70029900 - 2007 - Extraction of near-surface properties for a lossy layered medium using the propagator matrix","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029900","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Extraction of near-surface properties for a lossy layered medium using the propagator matrix","docAbstract":"Near-surface properties play an important role in advancing earthquake hazard assessment. Other areas where near-surface properties are crucial include civil engineering and detection and delineation of potable groundwater. From an exploration point of view, near-surface properties are needed for wavefield separation and correcting for the local near-receiver structure. It has been shown that these properties can be estimated for a lossless homogeneous medium using the propagator matrix. To estimate the near-surface properties, we apply deconvolution to passive borehole recordings of waves excited by an earthquake. Deconvolution of these incoherent waveforms recorded by the sensors at different depths in the borehole with the recording at the surface results in waves that propagate upwards and downwards along the array. These waves, obtained by deconvolution, can be used to estimate the P- and S-wave velocities near the surface. As opposed to waves obtained by cross-correlation that represent filtered version of the sum of causal and acausal Green's function between the two receivers, the waves obtained by deconvolution represent the elements of the propagator matrix. Finally, we show analytically the extension of the propagator matrix analysis to a lossy layered medium for a special case of normal incidence. ?? 2007 The Authors Journal compilation ?? 2007 RAS.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-246X.2006.03303.x","issn":"0956540X","usgsCitation":"Mehta, K., Snieder, R., and Graizer, V., 2007, Extraction of near-surface properties for a lossy layered medium using the propagator matrix: Geophysical Journal International, v. 169, no. 1, p. 271-280, https://doi.org/10.1111/j.1365-246X.2006.03303.x.","startPage":"271","endPage":"280","numberOfPages":"10","costCenters":[],"links":[{"id":477275,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-246x.2006.03303.x","text":"Publisher Index Page"},{"id":212721,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-246X.2006.03303.x"},{"id":240249,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"169","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e60e4b0c8380cd53409","contributors":{"authors":[{"text":"Mehta, K.","contributorId":60440,"corporation":false,"usgs":true,"family":"Mehta","given":"K.","email":"","affiliations":[],"preferred":false,"id":424823,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Snieder, R.","contributorId":63924,"corporation":false,"usgs":true,"family":"Snieder","given":"R.","email":"","affiliations":[],"preferred":false,"id":424824,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Graizer, V.","contributorId":88930,"corporation":false,"usgs":true,"family":"Graizer","given":"V.","email":"","affiliations":[],"preferred":false,"id":424825,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029903,"text":"70029903 - 2007 - Prey resources before spawning influence gonadal investment of female, but not male, white crappie","interactions":[],"lastModifiedDate":"2016-05-02T09:26:26","indexId":"70029903","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2285,"text":"Journal of Fish Biology","active":true,"publicationSubtype":{"id":10}},"title":"Prey resources before spawning influence gonadal investment of female, but not male, white crappie","docAbstract":"In this study, an outdoor pool experiment was used to evaluate the effect of prey resources during 4 months before spawning on the gonadal investments of male and female white crappie Pomoxis annularis, a popular freshwater sportfish that exhibits erratic recruitment. Fish were assigned one of three feeding treatments: starved, fed once every 5 days (intermediate) or fed daily (high). All measurements of male testes (i.e. wet mass, energy density and spermatocrit) were similar across treatments. Conversely, high-fed females produced larger ovaries than those of intermediate-fed and starved fish, and invested more energy in their ovaries than starved fish. Compared to pre-experiment fish, starved and intermediate-fed females appeared to increase their ovary size by relying on liver energy stores (‘capital’ spawning). Conversely, high-fed females increased liver and gonad mass, implying an ‘income’-spawning strategy (where gonads are built from recently acquired energy). Fecundity did not differ among treatments, but high-fed fish built larger eggs than those starved. Females rarely ‘skipped’ spawning opportunities when prey resources were low, as only 8% of starved females and 8% of intermediate-fed females lacked vitellogenic eggs. These results suggest that limited prey resources during the months before spawning can limit ovary production, which, in turn, can limit reproductive success of white crappies.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1095-8649.2007.01459.x","issn":"00221112","usgsCitation":"Bunnell, D., Thomas, S., and Stein, R., 2007, Prey resources before spawning influence gonadal investment of female, but not male, white crappie: Journal of Fish Biology, v. 70, no. 6, p. 1838-1854, https://doi.org/10.1111/j.1095-8649.2007.01459.x.","productDescription":"17 p.","startPage":"1838","endPage":"1854","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":477120,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1811/44508","text":"External Repository"},{"id":240284,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212748,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1095-8649.2007.01459.x"}],"volume":"70","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-05-23","publicationStatus":"PW","scienceBaseUri":"505a8b82e4b0c8380cd7e281","contributors":{"authors":[{"text":"Bunnell, D.B.","contributorId":8610,"corporation":false,"usgs":true,"family":"Bunnell","given":"D.B.","affiliations":[],"preferred":false,"id":424838,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thomas, S.E.","contributorId":10622,"corporation":false,"usgs":true,"family":"Thomas","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":424839,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stein, R.A.","contributorId":43893,"corporation":false,"usgs":true,"family":"Stein","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":424840,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029904,"text":"70029904 - 2007 - Assessment of exploration bias in data-driven predictive models and the estimation of undiscovered resources","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029904","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2832,"text":"Natural Resources Research","onlineIssn":"1573-8981","printIssn":"1520-7439","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of exploration bias in data-driven predictive models and the estimation of undiscovered resources","docAbstract":"The spatial distribution of discovered resources may not fully mimic the distribution of all such resources, discovered and undiscovered, because the process of discovery is biased by accessibility factors (e.g., outcrops, roads, and lakes) and by exploration criteria. In data-driven predictive models, the use of training sites (resource occurrences) biased by exploration criteria and accessibility does not necessarily translate to a biased predictive map. However, problems occur when evidence layers correlate with these same exploration factors. These biases then can produce a data-driven model that predicts known occurrences well, but poorly predicts undiscovered resources. Statistical assessment of correlation between evidence layers and map-based exploration factors is difficult because it is difficult to quantify the \"degree of exploration.\" However, if such a degree-of-exploration map can be produced, the benefits can be enormous. Not only does it become possible to assess this correlation, but it becomes possible to predict undiscovered, instead of discovered, resources. Using geothermal systems in Nevada, USA, as an example, a degree-of-exploration model is created, which then is resolved into purely explored and unexplored equivalents, each occurring within coextensive study areas. A weights-of-evidence (WofE) model is built first without regard to the degree of exploration, and then a revised WofE model is calculated for the \"explored fraction\" only. Differences in the weights between the two models provide a correlation measure between the evidence and the degree of exploration. The data used to build the geothermal evidence layers are perceived to be independent of degree of exploration. Nevertheless, the evidence layers correlate with exploration because exploration has preferred the same favorable areas identified by the evidence patterns. In this circumstance, however, the weights for the \"explored\" WofE model minimize this bias. Using these revised weights, posterior probability is extrapolated into unexplored areas to estimate undiscovered deposits. ?? International Association for Mathematical Geology 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Natural Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11053-007-9037-6","issn":"15207439","usgsCitation":"Coolbaugh, M., Raines, G.L., and Zehner, R.E., 2007, Assessment of exploration bias in data-driven predictive models and the estimation of undiscovered resources: Natural Resources Research, v. 16, no. 2, p. 199-207, https://doi.org/10.1007/s11053-007-9037-6.","startPage":"199","endPage":"207","numberOfPages":"9","costCenters":[],"links":[{"id":212780,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11053-007-9037-6"},{"id":240318,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-05-16","publicationStatus":"PW","scienceBaseUri":"5059ee2ee4b0c8380cd49beb","contributors":{"authors":[{"text":"Coolbaugh, M.F.","contributorId":55034,"corporation":false,"usgs":true,"family":"Coolbaugh","given":"M.F.","affiliations":[],"preferred":false,"id":424841,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Raines, G. L.","contributorId":90720,"corporation":false,"usgs":true,"family":"Raines","given":"G.","middleInitial":"L.","affiliations":[],"preferred":false,"id":424843,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zehner, R. E.","contributorId":67933,"corporation":false,"usgs":true,"family":"Zehner","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":424842,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029906,"text":"70029906 - 2007 - Relative influence of streamflows in assessing temporal variability in stream habitat","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029906","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Relative influence of streamflows in assessing temporal variability in stream habitat","docAbstract":"The effects of streamflows on temporal variation in stream habitat were analyzed from the data collected 6-11 years apart at 38 sites across the United States. Multiple linear regression was used to assess the variation in habitat caused by streamflow at the time of sampling and high flows between sampling. In addition to flow variables, the model also contained geomorphic and land use factors. The regression model was statistically significant (p < 0.05; R 2 = 0.31-0.46) for 5 of 14 habitat variables: mean wetted stream depth, mean bankfull depth, mean wetted stream width, coefficient of variation of wetted stream width, and the percent frequency of bank erosion. High flows between samples accounted for about 16% of the total variation in the frequency of bank erosion. Streamflow at the time of sampling was the main source of variation in mean stream depth and contributed to the variation in mean stream width and the frequency of bank erosion. Urban land use (population change) accounted for over 20% of the total variation in mean bankfull depth, 15% of the total variation in the coefficient of variation of stream width, and about 10% of the variation in mean stream width. ?? 2007 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2007.00051.x","issn":"1093474X","usgsCitation":"Goldstein, R.M., Meador, M.R., and Ruhl, K., 2007, Relative influence of streamflows in assessing temporal variability in stream habitat: Journal of the American Water Resources Association, v. 43, no. 3, p. 642-650, https://doi.org/10.1111/j.1752-1688.2007.00051.x.","startPage":"642","endPage":"650","numberOfPages":"9","costCenters":[],"links":[{"id":240354,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212810,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2007.00051.x"}],"volume":"43","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-05-07","publicationStatus":"PW","scienceBaseUri":"505aa68ce4b0c8380cd84ef6","contributors":{"authors":[{"text":"Goldstein, R. M.","contributorId":98305,"corporation":false,"usgs":true,"family":"Goldstein","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":424849,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meador, M. R.","contributorId":74400,"corporation":false,"usgs":true,"family":"Meador","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":424847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ruhl, K.E.","contributorId":92869,"corporation":false,"usgs":true,"family":"Ruhl","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":424848,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029907,"text":"70029907 - 2007 - Temperature and diet effects on omnivorous fish performance: Implications for the latitudinal diversity gradient in herbivorous fishes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029907","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Temperature and diet effects on omnivorous fish performance: Implications for the latitudinal diversity gradient in herbivorous fishes","docAbstract":"Herbivorous fishes show a clear latitudinal diversity gradient, making up a larger proportion of the fish species in a community in tropical waters than in temperate waters. One proposed mechanism that could drive this gradient is a physiological constraint due to temperature. One prediction based on this mechanism is that if herbivorous fishes could shift their diet to animal material, they would be better able to grow, survive, and reproduce in cold waters. We tested this prediction on the omnivore Girella nigricans under different temperature and diet regimes using RNA-DNA ratios as an indicator of performance. Fish had increased performance (100%) at low temperatures (12??C) when their diet was supplemented with animal material. In contrast, at higher temperatures (17, 22, and 27??C) fish showed no differences between diets. This indicates that omnivorous fishes could increase their performance at low temperatures by consuming more animal matter. This study supports the hypothesis that a relative increase in the nutritional value of plant material at warmer temperatures could drive the latitudinal diversity gradient in herbivorous fishes. ?? 2007 NRC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/F07-063","issn":"0706652X","usgsCitation":"Behrens, M., and Lafferty, K.D., 2007, Temperature and diet effects on omnivorous fish performance: Implications for the latitudinal diversity gradient in herbivorous fishes: Canadian Journal of Fisheries and Aquatic Sciences, v. 64, no. 6, p. 867-873, https://doi.org/10.1139/F07-063.","startPage":"867","endPage":"873","numberOfPages":"7","costCenters":[],"links":[{"id":240355,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212811,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/F07-063"}],"volume":"64","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba4b8e4b08c986b32052a","contributors":{"authors":[{"text":"Behrens, M.D.","contributorId":66890,"corporation":false,"usgs":true,"family":"Behrens","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":424851,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lafferty, K. D.","contributorId":58213,"corporation":false,"usgs":false,"family":"Lafferty","given":"K.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":424850,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70029908,"text":"70029908 - 2007 - Arsenic incorporation into authigenic pyrite, Bengal Basin sediment, Bangladesh","interactions":[],"lastModifiedDate":"2023-08-09T11:24:51.739136","indexId":"70029908","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Arsenic incorporation into authigenic pyrite, Bengal Basin sediment, Bangladesh","docAbstract":"Sediment from two deep boreholes (∼400 m) approximately 90 km apart in southern Bangladesh was analyzed by X-ray absorption spectroscopy (XAS), total chemical analyses, chemical extractions, and electron probe microanalysis to establish the importance of authigenic pyrite as a sink for arsenic in the Bengal Basin. Authigenic framboidal and massive pyrite (median values 1500 and 3200 ppm As, respectively), is the principal arsenic residence in sediment from both boreholes. Although pyrite is dominant, ferric oxyhydroxides and secondary iron phases contain a large fraction of the sediment-bound arsenic between approximately 20 and 100 m, which is the depth range of wells containing the greatest amount of dissolved arsenic. The lack of pyrite in this interval is attributed to rapid sediment deposition and a low sulfur flux from riverine and atmospheric sources. The ability of deeper aquifers (>150 m) to produce ground water with low dissolved arsenic in southern Bangladesh reflects adequate sulfur supplies and sufficient time to redistribute the arsenic into pyrite during diagenesis.
We employ a novel approach that combines pulse-chase feeding and multi-labelled stable isotopes to determine gut passage time (GPT), gut retention time (GRT), food ingestion rate (IR) and assimilation efficiency (AE) of three trace elements for a freshwater gastropod. Lettuce isotopically enriched in 53Cr, 65Cu and 106Cd was fed for 2 h to Lymnaea stagnalis. The release of tracers in feces and water was monitored for 48 h, during which unlabelled lettuce was provided ad libidum. The first defecation of 53Cr occurred after 5 h of depuration (GPT), whereas 90% of the ingested 53Cr was recovered in the feces after 22.5 h of depuration (GRT). 53Chromium was not significantly accumulated in the soft tissues upon exposure. In contrast, 65Cu and 106Cd assimilation was detectable for most experimental snails, i.e., 65/63Cu and 106/114Cd ratios in exposed snails were higher than those for controls. Food IR during the labelled feeding phase was 0.16 ± 0.07 g g−1 d−1. IR was inferred from the amount of 53Cr egested in the feces during depuration and the concentration of 53Cr in the labelled lettuce. Assimilation efficiencies (±95% CI) determined using mass balance calculations were 84 ± 4% for Cu and 85 ± 3% for Cd. The ratio method yields similar AE estimates. Expanding the application of this novel stable isotope tracer technique to other metals in a wide variety of species will provide unique opportunities to evaluate the interplay between digestive processes and dietary influx of metals. Understanding the biological processes that modulate dietborne metal uptake is crucial to assess the toxicity of dietborne metals.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.aquatox.2007.03.016","issn":"0166445X","usgsCitation":"Croteau, M.N., Luoma, S.N., and Pellet, B., 2007, Determining metal assimilation efficiency in aquatic invertebrates using enriched stable metal isotope tracers: Aquatic Toxicology, v. 83, no. 2, p. 116-125, https://doi.org/10.1016/j.aquatox.2007.03.016.","productDescription":"10 p.","startPage":"116","endPage":"125","numberOfPages":"10","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240315,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fff0e4b0c8380cd4f4b2","contributors":{"authors":[{"text":"Croteau, Marie Noele 0000-0003-0346-3580 mcroteau@usgs.gov","orcid":"https://orcid.org/0000-0003-0346-3580","contributorId":895,"corporation":false,"usgs":true,"family":"Croteau","given":"Marie","email":"mcroteau@usgs.gov","middleInitial":"Noele","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":424540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":424541,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pellet, B.","contributorId":99377,"corporation":false,"usgs":true,"family":"Pellet","given":"B.","email":"","affiliations":[],"preferred":false,"id":424542,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029837,"text":"70029837 - 2007 - Geoelectrical evidence of bicontinuum transport in groundwater","interactions":[],"lastModifiedDate":"2019-10-18T06:43:32","indexId":"70029837","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":"Geoelectrical evidence of bicontinuum transport in groundwater","docAbstract":"Bicontinuum models and rate-limited mass transfer (RLMT) explain complex transport behavior (e.g., long tailing and rebound) in heterogeneous geologic media, but experimental verification is problematic because geochemical samples represent the mobile component of the pore space. Here, we present geophysical evidence of RLMT at the field scale during an aquifer-storage and recovery experiment in a fractured limestone aquifer in Charleston, South Carolina. We observe a hysteretic relation between measurements of porefluid conductivity and bulk electrical conductivity; this hysteresis contradicts advective-dispersive transport and the standard petrophysical model relating pore-fluid and bulk conductivity, but can be explained by considering bicontinuum transport models that include first-order RLMT. Using a simple numerical model, we demonstrate that geoelectrical measurements are sensitive to bicontinuum transport and RLMT parameters, which are otherwise difficult to infer from direct, hydrologic measurements.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2007GL030019","issn":"00948276","usgsCitation":"Singha, K., Day-Lewis, F.D., and Lane, J.W., 2007, Geoelectrical evidence of bicontinuum transport in groundwater: Geophysical Research Letters, v. 34, no. 12, L12401, 5 p., https://doi.org/10.1029/2007GL030019.","productDescription":"L12401, 5 p.","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240314,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","city":"Charleston","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.29632568359375,\n 32.54681317351514\n ],\n [\n -79.5794677734375,\n 32.54681317351514\n ],\n [\n -79.5794677734375,\n 33.13065128220441\n ],\n [\n -80.29632568359375,\n 33.13065128220441\n ],\n [\n -80.29632568359375,\n 32.54681317351514\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"34","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-06-23","publicationStatus":"PW","scienceBaseUri":"505a1744e4b0c8380cd5545f","contributors":{"authors":[{"text":"Singha, K.","contributorId":51431,"corporation":false,"usgs":true,"family":"Singha","given":"K.","affiliations":[],"preferred":false,"id":424539,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":424538,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lane, John W. Jr. 0000-0002-3558-243X jwlane@usgs.gov","orcid":"https://orcid.org/0000-0002-3558-243X","contributorId":189168,"corporation":false,"usgs":true,"family":"Lane","given":"John","suffix":"Jr.","email":"jwlane@usgs.gov","middleInitial":"W.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":false,"id":424537,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029947,"text":"70029947 - 2007 - Territoriality, prospecting, and dispersal in cooperatively breeding Micronesian Kingfishers (Todiramphus cinnamominus reichenbachii)","interactions":[],"lastModifiedDate":"2017-11-15T10:00:40","indexId":"70029947","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Territoriality, prospecting, and dispersal in cooperatively breeding Micronesian Kingfishers (Todiramphus cinnamominus reichenbachii)","docAbstract":"We investigated territoriality, prospecting, and dispersal behavior in cooperatively breeding Pohnpei Micronesian Kingfishers (Todiramphus cinnamominus reichenbachii) throughout the annual cycle using radiotelemetry and color-band resights. Mean home-range size was 6.3 ha and territories were 8.1 ha. Within territories, Micronesian Kingfishers shared 63% of their home-range space with coterritorial occupants, and 3% was shared with extraterritorial conspecifics. Birds on cooperative territories had larger home ranges that overlapped more with coterritory occupants' home ranges than birds in pair-held territories. Despite evidence suggesting that resources necessary for survival and reproduction occurred on each territory, Micronesian Kingfishers of all age and sex classes made extraterritorial prospecting movements. Prospecting was rare; it comprised only 4.3% of our observations. When birds departed on forays, they were gone for ∼1.9 h and returned to home territories before sunset. Prospecting by dominant birds was temporally correlated with courtship and nest initiation, and birds were observed at neighboring nest sites with opposite-sex conspecifics during the period when females were available for fertilization. Juveniles and helpers prospected throughout the year and made repeated homesteading movements to dispersal destinations before dispersing. Mean dispersal distance for radiomarked individuals was 849 m. Results suggest that prospecting in Micronesian Kingfishers is a complex behavior that provides information for dispersal decisions and familiarity with dispersal destinations. Additionally, extraterritorial movements may provide covert opportunities for reproduction, which have potential to profoundly influence the distribution of fitness among helper and dominant Micronesian Kingfishers.
","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2007)124[381:TPADIC]2.0.CO;2","issn":"00048038","usgsCitation":"Kesler, D., and Haig, S.M., 2007, Territoriality, prospecting, and dispersal in cooperatively breeding Micronesian Kingfishers (Todiramphus cinnamominus reichenbachii): The Auk, v. 124, no. 2, p. 381-395, https://doi.org/10.1642/0004-8038(2007)124[381:TPADIC]2.0.CO;2.","productDescription":"15 p.","startPage":"381","endPage":"395","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":476958,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/0004-8038(2007)124[381:tpadic]2.0.co;2","text":"Publisher Index Page"},{"id":240494,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba56ae4b08c986b320a2a","contributors":{"authors":[{"text":"Kesler, D.C.","contributorId":96485,"corporation":false,"usgs":true,"family":"Kesler","given":"D.C.","affiliations":[],"preferred":false,"id":425027,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, S. M. 0000-0002-6616-7589","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":55389,"corporation":false,"usgs":true,"family":"Haig","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425026,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70029953,"text":"70029953 - 2007 - Source parameters of a M4.8 and its accompanying repeating earthquakes off Kamaishi, NE Japan: Implications for the hierarchical structure of asperities and earthquake cycle","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70029953","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":"Source parameters of a M4.8 and its accompanying repeating earthquakes off Kamaishi, NE Japan: Implications for the hierarchical structure of asperities and earthquake cycle","docAbstract":"We determine the source parameters of a M4.9 ?? 0.1 'characteristic earthquake' sequence and its accompanying microearthquakes at ???50 km depth on the subduction plate boundary offshore of Kamaishi, NE Japan. The microearthquakes tend to occur more frequently in the latter half of the recurrence intervals of the M4.9 ?? 0.1 events. Our results show that the microearthquakes are repeating events and they are located not only around but also within the slip area for the 2001 M4.8 event. From the hierarchical structure of slip areas and smaller stress drops for the microearthquakes compared to the M4.8 event, we infer the small repeating earthquakes rupture relatively weak patches in and around the slip area for the M4.8 event and their activity reflects a stress concentration process and/or change in frictional property (healing) at the area. We also infer the patches for the M4.9 ?? 0.1 and other repeating earthquakes undergo aseismic slip during their interseismic period. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL031263","issn":"00948276","usgsCitation":"Uchida, N., Matsuzawa, T., Ellsworth, W., Imanishi, K., Okada, T., and Hasegawa, A., 2007, Source parameters of a M4.8 and its accompanying repeating earthquakes off Kamaishi, NE Japan: Implications for the hierarchical structure of asperities and earthquake cycle: Geophysical Research Letters, v. 34, no. 20, https://doi.org/10.1029/2007GL031263.","costCenters":[],"links":[{"id":477217,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl031263","text":"Publisher Index Page"},{"id":213008,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL031263"},{"id":240588,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"20","noUsgsAuthors":false,"publicationDate":"2007-10-31","publicationStatus":"PW","scienceBaseUri":"505b9338e4b08c986b31a38f","contributors":{"authors":[{"text":"Uchida, N.","contributorId":101088,"corporation":false,"usgs":true,"family":"Uchida","given":"N.","email":"","affiliations":[],"preferred":false,"id":425049,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matsuzawa, T.","contributorId":11804,"corporation":false,"usgs":true,"family":"Matsuzawa","given":"T.","affiliations":[],"preferred":false,"id":425046,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ellsworth, W.L.","contributorId":48541,"corporation":false,"usgs":true,"family":"Ellsworth","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":425047,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Imanishi, K.","contributorId":51956,"corporation":false,"usgs":true,"family":"Imanishi","given":"K.","affiliations":[],"preferred":false,"id":425048,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Okada, T.","contributorId":10626,"corporation":false,"usgs":true,"family":"Okada","given":"T.","email":"","affiliations":[],"preferred":false,"id":425045,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hasegawa, A.","contributorId":6264,"corporation":false,"usgs":true,"family":"Hasegawa","given":"A.","email":"","affiliations":[],"preferred":false,"id":425044,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030048,"text":"70030048 - 2007 - Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70030048","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment","docAbstract":"Shale-gas resource plays can be distinguished by gas type and system characteristics. The Newark East gas field, located in the Fort Worth Basin, Texas, is defined by thermogenic gas production from low-porosity and low-permeability Barnett Shale. The Barnett Shale gas system, a self-contained source-reservoir system, has generated large amounts of gas in the key productive areas because of various characteristics and processes, including (1) excellent original organic richness and generation potential; (2) primary and secondary cracking of kerogen and retained oil, respectively; (3) retention of oil for cracking to gas by adsorption; (4) porosity resulting from organic matter decomposition; and (5) brittle mineralogical composition. The calculated total gas in place (GIP) based on estimated ultimate recovery that is based on production profiles and operator estimates is about 204 bcf/section (5.78 ?? 109 m3/1.73 ?? 104 m3). We estimate that the Barnett Shale has a total generation potential of about 609 bbl of oil equivalent/ac-ft or the equivalent of 3657 mcf/ac-ft (84.0 m3/m3). Assuming a thickness of 350 ft (107 m) and only sufficient hydrogen for partial cracking of retained oil to gas, a total generation potential of 820 bcf/section is estimated. Of this potential, approximately 60% was expelled, and the balance was retained for secondary cracking of oil to gas, if sufficient thermal maturity was reached. Gas storage capacity of the Barnett Shale at typical reservoir pressure, volume, and temperature conditions and 6% porosity shows a maximum storage capacity of 540 mcf/ac-ft or 159 scf/ton. Copyright ?? 2007. The American Association of Petroleum Geologists. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Association of Petroleum Geologists Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1306/12190606068","issn":"01491423","usgsCitation":"Jarvie, D., Hill, R., Ruble, T., and Pollastro, R.M., 2007, Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment: American Association of Petroleum Geologists Bulletin, v. 91, no. 4, p. 475-499, https://doi.org/10.1306/12190606068.","startPage":"475","endPage":"499","numberOfPages":"25","costCenters":[],"links":[{"id":212875,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1306/12190606068"},{"id":240434,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"91","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbc2ee4b08c986b328aae","contributors":{"authors":[{"text":"Jarvie, D.M.","contributorId":69768,"corporation":false,"usgs":true,"family":"Jarvie","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":425459,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, R.J.","contributorId":92850,"corporation":false,"usgs":true,"family":"Hill","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":425460,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ruble, T.E.","contributorId":30402,"corporation":false,"usgs":true,"family":"Ruble","given":"T.E.","email":"","affiliations":[],"preferred":false,"id":425458,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pollastro, R. M.","contributorId":6809,"corporation":false,"usgs":true,"family":"Pollastro","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425457,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029946,"text":"70029946 - 2007 - Modeling the influence of river discharge on salt intrusion and residual circulation in Danshuei River estuary, Taiwan","interactions":[],"lastModifiedDate":"2023-08-28T12:07:59.381307","indexId":"70029946","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1333,"text":"Continental Shelf Research","active":true,"publicationSubtype":{"id":10}},"title":"Modeling the influence of river discharge on salt intrusion and residual circulation in Danshuei River estuary, Taiwan","docAbstract":"A 3-D, time-dependent, baroclinic, hydrodynamic and salinity model was implemented and applied to the Danshuei River estuarine system and the adjacent coastal sea in Taiwan. The model forcing functions consist of tidal elevations along the open boundaries and freshwater inflows from the main stream and major tributaries in the Danshuei River estuarine system. The bottom friction coefficient was adjusted to achieve model calibration and verification in model simulations of barotropic and baroclinic flows. The turbulent diffusivities were ascertained through comparison of simulated salinity time series with observations. The model simulation results are in qualitative agreement with the available field data.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.csr.2006.12.005","issn":"02784343","usgsCitation":"Liu, W., Chen, W., Cheng, R.T., Hsu, M., and Kuo, A., 2007, Modeling the influence of river discharge on salt intrusion and residual circulation in Danshuei River estuary, Taiwan: Continental Shelf Research, v. 27, no. 7, p. 900-921, https://doi.org/10.1016/j.csr.2006.12.005.","productDescription":"22 p.","startPage":"900","endPage":"921","numberOfPages":"22","costCenters":[],"links":[{"id":212896,"rank":2,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.csr.2006.12.005"},{"id":240461,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Taiwan","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[121.77782,24.39427],[121.17563,22.79086],[120.74708,21.97057],[120.22008,22.81486],[120.10619,23.55626],[120.69468,24.53845],[121.49504,25.29546],[121.95124,24.9976],[121.77782,24.39427]]]},\"properties\":{\"name\":\"Taiwan\"}}]}","volume":"27","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c48e4b0c8380cd6fb74","contributors":{"authors":[{"text":"Liu, W.-C.","contributorId":9468,"corporation":false,"usgs":true,"family":"Liu","given":"W.-C.","email":"","affiliations":[],"preferred":false,"id":425021,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chen, W.-B.","contributorId":62413,"corporation":false,"usgs":true,"family":"Chen","given":"W.-B.","email":"","affiliations":[],"preferred":false,"id":425025,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cheng, R. T.","contributorId":23138,"corporation":false,"usgs":false,"family":"Cheng","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":425022,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hsu, M.-H.","contributorId":28074,"corporation":false,"usgs":true,"family":"Hsu","given":"M.-H.","email":"","affiliations":[],"preferred":false,"id":425023,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kuo, A.Y.","contributorId":60444,"corporation":false,"usgs":true,"family":"Kuo","given":"A.Y.","email":"","affiliations":[],"preferred":false,"id":425024,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70029945,"text":"70029945 - 2007 - Utility of R0 as a predictor of disease invasion in structured populations","interactions":[],"lastModifiedDate":"2021-02-04T21:52:28.503504","indexId":"70029945","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2567,"text":"Journal of the Royal Society Interface","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Utility of R0 as a predictor of disease invasion in structured populations","title":"Utility of R0 as a predictor of disease invasion in structured populations","docAbstract":"Early theoretical work on disease invasion typically assumed large and well-mixed host populations. Many human and wildlife systems, however, have small groups with limited movement among groups. In these situations, the basic reproductive number, R0, is likely to be a poor predictor of a disease pandemic because it typically does not account for group structure and movement of individuals among groups. We extend recent work by combining the movement of hosts, transmission within groups, recovery from infection and the recruitment of new susceptibles into a stochastic model of disease in a host metapopulation. We focus on how recruitment of susceptibles affects disease invasion and how population structure can affect the frequency of superspreading events (SSEs). We show that the frequency of SSEs may decrease with the reduced movement and the group sizes due to the limited number of susceptible individuals available. Classification tree analysis of the model results illustrates the hierarchical nature of disease invasion in host metapopulations. First, the pathogen must effectively transmit within a group (R0>1), and then the pathogen must persist within a group long enough to allow for movement among the groups. Therefore, the factors affecting disease persistence—such as infectious period, group size and recruitment of new susceptibles—are as important as the local transmission rates in predicting the spread of pathogens across a metapopulation.
","language":"English","publisher":"The Royal Society","doi":"10.1098/rsif.2006.0185","usgsCitation":"Cross, P.C., Johnson, P., Lloyd-Smith, J., and Getz, W.M., 2007, Utility of R0 as a predictor of disease invasion in structured populations: Journal of the Royal Society Interface, v. 4, no. 13, p. 315-324, https://doi.org/10.1098/rsif.2006.0185.","productDescription":"10 p.","startPage":"315","endPage":"324","numberOfPages":"10","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":477194,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://doi.org/10.1098/rsif.2006.0185","text":"External Repository"},{"id":240460,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"13","noUsgsAuthors":false,"publicationDate":"2006-11-23","publicationStatus":"PW","scienceBaseUri":"505bc0cde4b08c986b32a317","contributors":{"authors":[{"text":"Cross, Paul C. 0000-0001-8045-5213 pcross@usgs.gov","orcid":"https://orcid.org/0000-0001-8045-5213","contributorId":2709,"corporation":false,"usgs":true,"family":"Cross","given":"Paul","email":"pcross@usgs.gov","middleInitial":"C.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":425019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Philip L.","contributorId":31810,"corporation":false,"usgs":true,"family":"Johnson","given":"Philip L.","affiliations":[],"preferred":false,"id":425020,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lloyd-Smith, James O.","contributorId":31354,"corporation":false,"usgs":true,"family":"Lloyd-Smith","given":"James O.","affiliations":[],"preferred":false,"id":425018,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Getz, Wayne M.","contributorId":201830,"corporation":false,"usgs":false,"family":"Getz","given":"Wayne","email":"","middleInitial":"M.","affiliations":[{"id":36267,"text":"Dept of Environmental Science, University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":425017,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029943,"text":"70029943 - 2007 - Pharmaceuticals in on-site sewage effluent and ground water, Western Montana","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029943","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Pharmaceuticals in on-site sewage effluent and ground water, Western Montana","docAbstract":"Human use of pharmaceuticals results in the excretion and disposal of compounds that become part of municipal and domestic waste streams. On-site waste water disposal and leaking city sewer systems can provide avenues for the migration of effluent to the underlying aquifers. This research assessed the occurrence and persistence of 22 target pharmaceuticals in septic tank effluent and two shallow, coarse-grained aquifers in western Montana. Twelve compounds (acetaminophen, caffeine, codeine, carbamazepine, cotinine, erythromycin-18, nicotine, paraxanthine, ranitidine, sulfamethoxazole, trimethoprim, and warfarin) were detected in a high school septic tank effluent. Three of the 12 compounds, carbamazepine, sulfamethoxazole, and nicotine, were detected in the underlying sand and gravel aquifer after effluent percolation through a 2.0-m thick sand vadose zone. Sampling of a second sand, gravel, and cobble dominated unconfined aquifer, partially overlain by septic systems and a city sewer system, revealed the presence of caffeine, carbamazepine, cotinine, nicotine, and trimethoprim. The presence of carbamazepine and sulfamethoxazole in these aquifers appears to correlate with local usage based on a reported monthly prescription volume. This work highlights the need for expanding geochemical investigations of sewage waste impacted ground water systems to include sampling for selected pharmaceuticals. ?? 2007 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2006.00288.x","issn":"0017467X","usgsCitation":"Godfrey, E., Woessner, W., and Benotti, M., 2007, Pharmaceuticals in on-site sewage effluent and ground water, Western Montana: Ground Water, v. 45, no. 3, p. 263-271, https://doi.org/10.1111/j.1745-6584.2006.00288.x.","startPage":"263","endPage":"271","numberOfPages":"9","costCenters":[],"links":[{"id":212842,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2006.00288.x"},{"id":240394,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-03-12","publicationStatus":"PW","scienceBaseUri":"505a786ee4b0c8380cd786c7","contributors":{"authors":[{"text":"Godfrey, E.","contributorId":9865,"corporation":false,"usgs":true,"family":"Godfrey","given":"E.","email":"","affiliations":[],"preferred":false,"id":425012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woessner, W.W.","contributorId":76945,"corporation":false,"usgs":true,"family":"Woessner","given":"W.W.","affiliations":[],"preferred":false,"id":425014,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Benotti, M.J.","contributorId":21750,"corporation":false,"usgs":true,"family":"Benotti","given":"M.J.","affiliations":[],"preferred":false,"id":425013,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029942,"text":"70029942 - 2007 - Simultaneous determination of thermal conductivity, thermal diffusivity and specific heat in sI methane hydrate","interactions":[],"lastModifiedDate":"2018-04-09T12:31:09","indexId":"70029942","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Simultaneous determination of thermal conductivity, thermal diffusivity and specific heat in sI methane hydrate","docAbstract":"Thermal conductivity, thermal diffusivity and specific heat of sI methane hydrate were measured as functions of temperature and pressure using a needle probe technique. The temperature dependence was measured between −20°C and 17°C at 31.5 MPa. The pressure dependence was measured between 31.5 and 102 MPa at 14.4°C. Only weak temperature and pressure dependencies were observed. Methane hydrate thermal conductivity differs from that of water by less than 10 per cent, too little to provide a sensitive measure of hydrate content in water-saturated systems. Thermal diffusivity of methane hydrate is more than twice that of water, however, and its specific heat is about half that of water. Thus, when drilling into or through hydrate-rich sediment, heat from the borehole can raise the formation temperature more than 20 per cent faster than if the formation's pore space contains only water. Thermal properties of methane hydrate should be considered in safety and economic assessments of hydrate-bearing sediment.","language":"English","publisher":"Oxford University Press","doi":"10.1111/j.1365-246X.2007.03382.x","issn":"0956540X","usgsCitation":"Waite, W., Stern, L., Kirby, S.H., Winters, W., and Mason, D., 2007, Simultaneous determination of thermal conductivity, thermal diffusivity and specific heat in sI methane hydrate: Geophysical Journal International, v. 169, no. 2, p. 767-774, https://doi.org/10.1111/j.1365-246X.2007.03382.x.","productDescription":"8 p.","startPage":"767","endPage":"774","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":477114,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-246x.2007.03382.x","text":"Publisher Index Page"},{"id":240393,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"169","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b90d2e4b08c986b31968b","contributors":{"authors":[{"text":"Waite, W.F.","contributorId":40329,"corporation":false,"usgs":true,"family":"Waite","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":425008,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stern, L.A.","contributorId":38293,"corporation":false,"usgs":true,"family":"Stern","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":425007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kirby, S. H.","contributorId":51721,"corporation":false,"usgs":true,"family":"Kirby","given":"S.","middleInitial":"H.","affiliations":[],"preferred":false,"id":425010,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Winters, W.J.","contributorId":49796,"corporation":false,"usgs":true,"family":"Winters","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":425009,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mason, D.H.","contributorId":93952,"corporation":false,"usgs":true,"family":"Mason","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":425011,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030050,"text":"70030050 - 2007 - Glacier changes in southeast Alaska and northwest British Columbia and contribution to sea level rise","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70030050","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Glacier changes in southeast Alaska and northwest British Columbia and contribution to sea level rise","docAbstract":"The digital elevation model (DEM) from the 2000 Shuttle Radar Topography Mission (SRTM) was differenced from a composite DEM based on air photos dating from 1948 to 1987 to detennine glacier volume changes in southeast Alaska and adjoining Canada. SRTM accuracy was assessed at ??5 in through comparison with airborne laser altimetry and control locations measured with GPS. Glacier surface elevations lowered over 95% of the 14,580 km2 glacier-covered area analyzed, with some glaciers thinning as much as 640 in. A combination of factors have contributed to this wastage, including calving retreats of tidewater and lacustrine glaciers and climate change. Many glaciers in this region are particularly sensitive to climate change, as they have large areas at low elevations. However, several tidewater glaciers that had historically undergone calving retreats are now expanding and appear to be in the advancing stage of the tidewater glacier cycle. The net average rate of ice loss is estimated at 16.7 ?? 4.4 km3/yr, equivalent to a global sea level rise contribution of 0.04 ?? 0.01 mm/yr. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research F: Earth Surface","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006JF000586","issn":"01480227","usgsCitation":"Larsen, C., Motyka, R., Arendt, A., Echelmeyer, K., and Geissler, P., 2007, Glacier changes in southeast Alaska and northwest British Columbia and contribution to sea level rise: Journal of Geophysical Research F: Earth Surface, v. 112, no. 1, https://doi.org/10.1029/2006JF000586.","costCenters":[],"links":[{"id":477126,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jf000586","text":"Publisher Index Page"},{"id":240467,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212902,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JF000586"}],"volume":"112","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-02-24","publicationStatus":"PW","scienceBaseUri":"505a2914e4b0c8380cd5a66a","contributors":{"authors":[{"text":"Larsen, C.F.","contributorId":96091,"corporation":false,"usgs":true,"family":"Larsen","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":425468,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motyka, R.J.","contributorId":49594,"corporation":false,"usgs":true,"family":"Motyka","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":425466,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arendt, A.A.","contributorId":99379,"corporation":false,"usgs":false,"family":"Arendt","given":"A.A.","email":"","affiliations":[{"id":12920,"text":"Applied Physics Laboratory, University of Washington","active":true,"usgs":false}],"preferred":false,"id":425469,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Echelmeyer, K.A.","contributorId":11781,"corporation":false,"usgs":true,"family":"Echelmeyer","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":425465,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Geissler, P.E.","contributorId":67636,"corporation":false,"usgs":true,"family":"Geissler","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":425467,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}