The accumulation of polycyclic aromatic hydrocarbons (PAH) in soil, plants, and water may impart negative effects on ecosystem and human health. We quantified the concentration and distribution of 41 PAH (n = 32), organic C, total N, and S (n = 140) and investigated PAH sources using a chronosequence of floodplain soils under a natural vegetation succession. Soil samples were collected between 0- and 260-cm depth in bare land (the control), wetland, forest, and grassland areas near a closed municipal landfill and an active asphalt plant (the contaminant sources) in the north bank of the Canadian River near Norman, OK. Principal component, cluster, and correlation analyses were used to investigate the spatial distribution of PAH, in combination with diagnostic ratios to distinguish pyrogenic vs. petrogenic PAH suites. Total PAH concentration (SigmaPAH) had a mean of 1300 ng g(-1), minimum of 16 ng g(-1), and maximum of 12,000 ng g(-1). At 0- to 20-cm depth, SigmaPAH was 3500 +/- 1600 ng g(-1) (mean +/- 1 SE) near the contaminant sources. The most common compounds were nonalkylated, high molecular weight PAH of pyrogenic origin, i.e., fluoranthene (17%), pyrene (14%), phenanthrene (9%), benzo(b)fluoranthene (7%), chrysene (6%), and benzo(a)anthracene (5%). SigmaPAH in the control (130 +/- 23 ng g(-1)) was comparable to reported concentrations for the rural Great Plains. Perylene had a unique distribution pattern suggesting biological inputs. The main PAH contamination mechanisms were likely atmospheric deposition due to asphalt production at the 0- to 20-cm depth and past landfill operations at deeper depths.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Quality","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2134/jeq2009.0270","issn":"00472425","usgsCitation":"Sartori, F., Wade, T., Sericano, J., Mohanty, B., and Smith, K.A., 2010, Polycyclic aromatic hydrocarbons in soil of the Canadian River floodplain in Oklahoma: Journal of Environmental Quality, v. 39, no. 2, p. 568-579, https://doi.org/10.2134/jeq2009.0270.","productDescription":"12 p.","startPage":"568","endPage":"579","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":243661,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215833,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2134/jeq2009.0270"}],"volume":"39","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7cfee4b0c8380cd79cbb","contributors":{"authors":[{"text":"Sartori, F.","contributorId":19803,"corporation":false,"usgs":true,"family":"Sartori","given":"F.","email":"","affiliations":[],"preferred":false,"id":446630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wade, T.L.","contributorId":59198,"corporation":false,"usgs":true,"family":"Wade","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":446632,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sericano, J.L.","contributorId":12661,"corporation":false,"usgs":true,"family":"Sericano","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":446629,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mohanty, B.P.","contributorId":20162,"corporation":false,"usgs":true,"family":"Mohanty","given":"B.P.","email":"","affiliations":[],"preferred":false,"id":446631,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, Karen A.","contributorId":77477,"corporation":false,"usgs":true,"family":"Smith","given":"Karen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":446633,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70046693,"text":"dds49101 - 2010 - Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Artificial Drainage (1992) and Irrigation (1997)","interactions":[],"lastModifiedDate":"2013-11-25T16:05:21","indexId":"dds49101","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"491-01","title":"Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Artificial Drainage (1992) and Irrigation (1997)","docAbstract":"This tabular data set represents the estimated area of artifical drainage for the year 1992 and irrigation types for the year 1997 compiled for every MRB_E2RF1 catchment of Major River Basins (MRBs, Crawford and others, 2006). The source data sets were derived from tabular National Resource Inventory (NRI) data sets created by the National Resources Conservation Service (NRCS, U.S. Department of Agriculture, 1995, 2000). Artificial drainage is defined as subsurface drains and ditches. Irrigation types are defined as gravity and pressure. Subsurface drains are described as conduits, such as corrugated plastic tubing, tile, or pipe, installed beneath the ground surface to collect and/or convey drainage. Surface drainage field ditches are described as graded ditches for collecting excess water. Gravity irrigation source is described as irrigation delivered to the farm and/or field by canals or pipelines open to the atmosphere; and water is distributed by the force of gravity down the field by: (1) A surface irrigation system (border, basin, furrow, corrugation, wild flooding, etc.) or (2) Sub-surface irrigation pipelines or ditches. Pressure irrigation source is described as irrigation delivered to the farm and/or field in pump or elevation-induced pressure pipelines, and water is distributed across the field by: (1) Sprinkle irrigation (center pivot, linear move, traveling gun, side roll, hand move, big gun, or fixed set sprinklers), or (2) Micro irrigation (drip emitters, continuous tube bubblers, micro spray or micro sprinklers). NRI data do not include Federal lands and are thus excluded from this dataset. The tabular data for drainage were spatially apportioned to the National Land Cover Dataset (NLCD, Kerie Hitt, U.S. Geological Survey, written commun., 2005) and the tabular data for irrigation were spatially apportioned to an enhanced version of the National Land Cover Dataset (NLCDe, Nakagaki and others, 2007). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's (USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011). Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/dds49101","usgsCitation":"Wieczorek, M., and LaMotte, A.E., 2010, Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Artificial Drainage (1992) and Irrigation (1997): U.S. Geological Survey Data Series 491-01, Dataset, https://doi.org/10.3133/dds49101.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":274189,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274186,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mrb_e2rf1_adrain.xml"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -127.910792,23.243486 ], [ -127.910792,51.657387 ], [ -65.327751,51.657387 ], [ -65.327751,23.243486 ], [ -127.910792,23.243486 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51cabbdfe4b0d298e5434c24","contributors":{"authors":[{"text":"Wieczorek, Michael mewieczo@usgs.gov","contributorId":2309,"corporation":false,"usgs":true,"family":"Wieczorek","given":"Michael","email":"mewieczo@usgs.gov","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":false,"id":480024,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LaMotte, Andrew E. 0000-0002-1434-6518 alamotte@usgs.gov","orcid":"https://orcid.org/0000-0002-1434-6518","contributorId":2842,"corporation":false,"usgs":true,"family":"LaMotte","given":"Andrew","email":"alamotte@usgs.gov","middleInitial":"E.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":480025,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70037055,"text":"70037055 - 2010 - Striped Bass, morone saxatilis, egg incubation in large volume jars","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037055","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2574,"text":"Journal of the World Aquaculture Society","active":true,"publicationSubtype":{"id":10}},"title":"Striped Bass, morone saxatilis, egg incubation in large volume jars","docAbstract":"The standard McDonald jar was compared with a large volume jar for striped bass, Morone saxatilis, egg incubation. The McDonald jar measured 16 cm in diameter by 45 cm in height and had a volume of 6 L. The experimental jar measured 0.4 m in diameter by 1.3 m in height and had a volume of 200 L. The hypothesis is that there is no difference in percent survival of fry hatched in experimental jars compared with McDonald jars. Striped bass brood fish were collected from the Coosa River and spawned using the dry spawn method of fertilization. Four McDonald jars were stocked with approximately 150 g of eggs each. Post-hatch survival was estimated at 48, 96, and 144 h. Stocking rates resulted in an average egg loading rate (??1 SE) in McDonald jars of 21.9 ?? 0.03 eggs/mL and in experimental jars of 10.9 ?? 0.57 eggs/mL. The major finding of this study was that average fry survival was 37.3 ?? 4.49% for McDonald jars and 34.2 ?? 3.80% for experimental jars. Although survival in experimental jars was slightly less than in McDonald jars, the effect of container volume on survival to 48 h (F = 6.57; df = 1,5; P > 0.05), 96 h (F = 0.02; df = 1, 4; P > 0.89), and 144 h (F = 3.50; df = 1, 4; P > 0.13) was not statistically significant. Mean survival between replicates ranged from 14.7 to 60.1% in McDonald jars and from 10.1 to 54.4% in experimental jars. No effect of initial stocking rate on survival (t = 0.06; df = 10; P > 0.95) was detected. Experimental jars allowed for incubation of a greater number of eggs in less than half the floor space of McDonald jars. As hatchery production is often limited by space or water supply, experimental jars offer an alternative to extending spawning activities, thereby reducing labor and operations cost. As survival was similar to McDonald jars, the experimental jar is suitable for striped bass egg incubation. ?? Copyright by the World Aquaculture Society 2010.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the World Aquaculture Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1749-7345.2010.00404.x","issn":"08938849","usgsCitation":"Harper, C., Wrege, B., and Jeffery, I., 2010, Striped Bass, morone saxatilis, egg incubation in large volume jars: Journal of the World Aquaculture Society, v. 41, no. 4, p. 633-639, https://doi.org/10.1111/j.1749-7345.2010.00404.x.","startPage":"633","endPage":"639","numberOfPages":"7","costCenters":[],"links":[{"id":217133,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1749-7345.2010.00404.x"},{"id":245052,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-08-02","publicationStatus":"PW","scienceBaseUri":"505b9b73e4b08c986b31cec8","contributors":{"authors":[{"text":"Harper, C.J.","contributorId":107531,"corporation":false,"usgs":true,"family":"Harper","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":459171,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wrege, B.M.","contributorId":100405,"corporation":false,"usgs":true,"family":"Wrege","given":"B.M.","affiliations":[],"preferred":false,"id":459170,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jeffery, Isely J.","contributorId":15044,"corporation":false,"usgs":true,"family":"Jeffery","given":"Isely J.","affiliations":[],"preferred":false,"id":459169,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70154984,"text":"70154984 - 2010 - Migration patterns and movements of sandhill cranes wintering in central and southwestern Louisiana","interactions":[],"lastModifiedDate":"2017-05-17T09:42:01","indexId":"70154984","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Migration patterns and movements of sandhill cranes wintering in central and southwestern Louisiana","docAbstract":"In this study we trapped wintering sandhill cranes (Grus canadensis) in Louisiana and fitted them with satellite transmitters to determine their migration routes. Four of the 6 sandhill cranes with validated locations and a terminus point used the Central Flyway for spring migration; 2 of these 4 (the only 2 for which we have data) also used the Central Flyway for fall migration. Two of the 6 birds used the Mississippi Flyway for spring migration. The results of this study suggest that reintroduced whooping cranes (G. americana) that intermix and migrate with sandhill cranes that winter in Louisiana may enter the Central Flyway. In addition, the Mississippi Flyway is a viable option to use as a migration route for whooping cranes if they are reintroduced in Louisiana.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the eleventh North American crane workshop","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Eleventh North American Crane Workshop","conferenceDate":" September 23-27, 2008","conferenceLocation":"Wisconsin Dells, WI","language":"English","publisher":"North American Crane Working Group","usgsCitation":"King, S.L., Pierce, A.R., Hersey, K., and Winstead, N., 2010, Migration patterns and movements of sandhill cranes wintering in central and southwestern Louisiana, in Proceedings of the eleventh North American crane workshop, Wisconsin Dells, WI, September 23-27, 2008, p. 57-61.","productDescription":"5 p.","startPage":"57","endPage":"61","ipdsId":"IP-010148","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":341411,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341410,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://digitalcommons.unl.edu/nacwgproc/133/"}],"country":"United States","state":"Louisiana","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"593e2ed6e4b0764e6c61b7b4","contributors":{"editors":[{"text":"Hartup, Barry K.","contributorId":112921,"corporation":false,"usgs":true,"family":"Hartup","given":"Barry","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":695444,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"King, Sammy L. 0000-0002-5364-6361 sking@usgs.gov","orcid":"https://orcid.org/0000-0002-5364-6361","contributorId":557,"corporation":false,"usgs":true,"family":"King","given":"Sammy","email":"sking@usgs.gov","middleInitial":"L.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":564463,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pierce, Aaron R.","contributorId":94421,"corporation":false,"usgs":false,"family":"Pierce","given":"Aaron","email":"","middleInitial":"R.","affiliations":[{"id":33463,"text":"Nicholls State University, Thibodaux, LA","active":true,"usgs":false}],"preferred":false,"id":695441,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hersey, Kent","contributorId":99873,"corporation":false,"usgs":false,"family":"Hersey","given":"Kent","affiliations":[{"id":6763,"text":"Utah Division of Wildlife Resources, Salt Lake City, Utah","active":true,"usgs":false}],"preferred":false,"id":695442,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Winstead, Nicholas","contributorId":112243,"corporation":false,"usgs":false,"family":"Winstead","given":"Nicholas","email":"","affiliations":[{"id":33464,"text":"Mississippi Department of Wildlife","active":true,"usgs":false}],"preferred":false,"id":695443,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037207,"text":"70037207 - 2010 - Land-use pressure and a transition to forest-cover loss in the Eastern United States","interactions":[],"lastModifiedDate":"2017-04-05T14:17:02","indexId":"70037207","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":997,"text":"BioScience","active":true,"publicationSubtype":{"id":10}},"title":"Land-use pressure and a transition to forest-cover loss in the Eastern United States","docAbstract":"Contemporary land-use pressures have a significant impact on the extent and condition of forests in the eastern United States, causing a regional-scale decline in forest cover. Earlier in the 20th century, land cover was on a trajectory of forest expansion that followed agricultural abandonment. However, the potential for forest regeneration has slowed, and the extent of regional forest cover has declined by more than 4.0%. Using remote-sensing data, statistical sampling, and change-detection methods, this research shows how land conversion varies spatially and temporally across the East from 1973–2000, and how those changes affect regional land-change dynamics. The analysis shows that agricultural land use has continued to decline, and that this enables forest recovery; however, an important land-cover transition has occurred, from a mode of regional forest-cover gain to one of forest-cover loss caused by timber cutting cycles, urbanization, and other land-use demands.
","language":"English","publisher":"American Institute of Biological Sciences","doi":"10.1525/bio.2010.60.4.7","issn":"00063568","usgsCitation":"Drummond, M.A., and Loveland, T.R., 2010, Land-use pressure and a transition to forest-cover loss in the Eastern United States: BioScience, v. 60, no. 4, p. 286-298, https://doi.org/10.1525/bio.2010.60.4.7.","productDescription":"13 p.","startPage":"286","endPage":"298","numberOfPages":"13","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":244965,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217054,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1525/bio.2010.60.4.7"}],"volume":"60","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a43c1e4b0c8380cd665bd","contributors":{"authors":[{"text":"Drummond, Mark A. 0000-0001-7420-3503 madrummond@usgs.gov","orcid":"https://orcid.org/0000-0001-7420-3503","contributorId":3053,"corporation":false,"usgs":true,"family":"Drummond","given":"Mark","email":"madrummond@usgs.gov","middleInitial":"A.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":459902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loveland, Thomas R. 0000-0003-3114-6646 loveland@usgs.gov","orcid":"https://orcid.org/0000-0003-3114-6646","contributorId":140256,"corporation":false,"usgs":true,"family":"Loveland","given":"Thomas","email":"loveland@usgs.gov","middleInitial":"R.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":459903,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70037086,"text":"70037086 - 2010 - Computer algorithm for analyzing and processing borehole strainmeter data","interactions":[],"lastModifiedDate":"2013-01-14T15:14:48","indexId":"70037086","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"Computer algorithm for analyzing and processing borehole strainmeter data","docAbstract":"The newly installed Plate Boundary Observatory (PBO) strainmeters record signals from tectonic activity, Earth tides, and atmospheric pressure. Important information about tectonic processes may occur at amplitudes at and below tidal strains and pressure loading. If incorrect assumptions are made regarding the background noise in the strain data, then the estimates of tectonic signal amplitudes may be incorrect. Furthermore, the use of simplifying assumptions that data are uncorrelated can lead to incorrect results and pressure loading and tides may not be completely removed from the raw data. Instead, any algorithm used to process strainmeter data must incorporate the strong temporal correlations that are inherent with these data. The technique described here uses least squares but employs data covariance that describes the temporal correlation of strainmeter data. There are several advantages to this method since many parameters are estimated simultaneously. These parameters include: (1) functional terms that describe the underlying error model, (2) the tidal terms, (3) the pressure loading term(s), (4) amplitudes of offsets, either those from earthquakes or from the instrument, (5) rate and changes in rate, and (6) the amplitudes and time constants of either logarithmic or exponential curves that can characterize postseismic deformation or diffusion of fluids near the strainmeter. With the proper error model, realistic estimates of the standard errors of the various parameters are obtained; this is especially critical in determining the statistical significance of a suspected, tectonic strain signal. The program also provides a method of tracking the various adjustments required to process strainmeter data. In addition, the program provides several plots to assist with identifying either tectonic signals or other signals that may need to be removed before any geophysical signal can be identified.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.cageo.2009.08.011","issn":"00983004","usgsCitation":"Langbein, J.O., 2010, Computer algorithm for analyzing and processing borehole strainmeter data: Computers & Geosciences, v. 36, no. 5, p. 611-619, https://doi.org/10.1016/j.cageo.2009.08.011.","startPage":"611","endPage":"619","numberOfPages":"9","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":217104,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.cageo.2009.08.011"},{"id":245021,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f955e4b0c8380cd4d587","contributors":{"authors":[{"text":"Langbein, John O. 0000-0002-7821-8101 langbein@usgs.gov","orcid":"https://orcid.org/0000-0002-7821-8101","contributorId":3293,"corporation":false,"usgs":true,"family":"Langbein","given":"John","email":"langbein@usgs.gov","middleInitial":"O.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":459311,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70037235,"text":"70037235 - 2010 - Variation in Lake Michigan alewife (Alosa pseudoharengus) thiaminase and fatty acids composition","interactions":[],"lastModifiedDate":"2018-10-17T16:09:25","indexId":"70037235","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2299,"text":"Journal of Freshwater Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in Lake Michigan alewife (Alosa pseudoharengus) thiaminase and fatty acids composition","docAbstract":"Thiaminase activity of alewife (Alosa pseudoharengus) is variable across Lake Michigan, yet factors that contribute to the variability in alewife thiaminase activity are unknown. The fatty acid content of Lake Michigan alewife has not been previously reported. Analysis of 53 Lake Michigan alewives found a positive correlation between thiaminase activity and the following fatty acid: C22:ln9, sum of omega-6 fatty acids (Sw6), and sum of the polyunsaturated fatty acids. Thiaminase activity was negatively correlated with C15:0, C16:0, C17:0, C18:0, C20:0, C22:0, C24:0, C18:ln9t, C20:3n3, C22:2, and the sum of all saturated fatty acids (SAFA). Multi-variant regression analysis resulted in three variables (C18:ln9t, Sw6, SAFA) that explained 71% (R2=0.71, P<0.0001) of the variation in thiaminase activity. Because the fatty acid content of an organism is related is food source, diet may be an important factor modulating alewife thiaminase activity. These data suggest there is an association between fatty acids and thiaminase activity in Lake Michigan alewife.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Freshwater Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/02705060.2010.9664358","issn":"02705060","usgsCitation":"Honeyfield, D.C., Tillitt, D.E., Fitzsimons, J.D., and Brown, S.B., 2010, Variation in Lake Michigan alewife (Alosa pseudoharengus) thiaminase and fatty acids composition: Journal of Freshwater Ecology, v. 25, no. 1, p. 65-71, https://doi.org/10.1080/02705060.2010.9664358.","productDescription":"7 p.","startPage":"65","endPage":"71","numberOfPages":"7","costCenters":[{"id":34983,"text":"Contaminant Biology Program","active":true,"usgs":true}],"links":[{"id":475892,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/02705060.2010.9664358","text":"Publisher Index Page"},{"id":244905,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Lake Michigan","volume":"25","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc151e4b08c986b32a50c","contributors":{"authors":[{"text":"Honeyfield, Dale C. 0000-0003-3034-2047 honeyfie@usgs.gov","orcid":"https://orcid.org/0000-0003-3034-2047","contributorId":2774,"corporation":false,"usgs":true,"family":"Honeyfield","given":"Dale","email":"honeyfie@usgs.gov","middleInitial":"C.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":460008,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tillitt, Donald E. 0000-0002-8278-3955 dtillitt@usgs.gov","orcid":"https://orcid.org/0000-0002-8278-3955","contributorId":1875,"corporation":false,"usgs":true,"family":"Tillitt","given":"Donald","email":"dtillitt@usgs.gov","middleInitial":"E.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":460009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fitzsimons, John D.","contributorId":194168,"corporation":false,"usgs":false,"family":"Fitzsimons","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":460007,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, Scott B.","contributorId":175330,"corporation":false,"usgs":false,"family":"Brown","given":"Scott","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":460010,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037026,"text":"70037026 - 2010 - Using Gambusia affinis growth and condition to assess estuarine habitat quality: A comparison of indices","interactions":[],"lastModifiedDate":"2012-03-12T17:22:10","indexId":"70037026","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Using Gambusia affinis growth and condition to assess estuarine habitat quality: A comparison of indices","docAbstract":"Numerous indices have been used to estimate fish growth and condition however, differences in sensitivity and reliability of the methods have hampered efforts to identify appropriate indicators for routine evaluation of habitat quality in the field. We compared common morphometric (length, weight, somatic growth, length-weight condition) and biochemical (RNA:DNA ratio, relative DNA content, energy density) growth indices on the same wild-caught mosquitofish Gambusia affinis to examine their usefulness as indicators of habitat quality. A laboratory experiment was used to quantify growth rates of wild-caught G. affinis under different feeding treatments. Field studies consisted of both a short-term enclosure experiment (10 d) and weekly (7 wk) fish collections to compare growth indices in managed inflow and reference marshes during a winter/spring freshwater pulse event in upper Breton Sound, Louisiana, USA. Marshes flooded by restored freshwater pulses were capable of producing optimum growth (0.001 g DW d-1 DW = dry weight) and energetically valuable habitat (>6000 cal g-1 DW) for trophic transport. Because of differences in timing of response, morphometric and biochemical indices were generally not directly correlated, but there was clear agreement in direction and magnitude of response. The most striking difference in timing was that biochemical indices (RNA:DNA) responded more slowly to treatments than did morphometric growth indices. While gross patterns are comparable between indicators, differences in sensitivity and response time between indicators suggest that choice of indicator needs to be accounted for in interpretation and analysis of effects. ?? Inter-Research 2010, www.int-res.com.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Ecology Progress Series","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3354/meps08686","issn":"01718630","usgsCitation":"Piazza, B.P., and La Peyre, M., 2010, Using Gambusia affinis growth and condition to assess estuarine habitat quality: A comparison of indices: Marine Ecology Progress Series, v. 412, p. 231-245, https://doi.org/10.3354/meps08686.","startPage":"231","endPage":"245","numberOfPages":"15","costCenters":[],"links":[{"id":475973,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps08686","text":"Publisher Index Page"},{"id":217156,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/meps08686"},{"id":245077,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"412","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc010e4b08c986b329ee9","contributors":{"authors":[{"text":"Piazza, Bryan P.","contributorId":11022,"corporation":false,"usgs":true,"family":"Piazza","given":"Bryan","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":459031,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"La Peyre, M.K. 0000-0001-9936-2252","orcid":"https://orcid.org/0000-0001-9936-2252","contributorId":102239,"corporation":false,"usgs":true,"family":"La Peyre","given":"M.K.","affiliations":[],"preferred":false,"id":459032,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70037053,"text":"70037053 - 2010 - Common snapping turtle preys on an adult western grebe","interactions":[],"lastModifiedDate":"2017-12-27T11:42:09","indexId":"70037053","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Common snapping turtle preys on an adult western grebe","docAbstract":"The identification of predators of aquatic birds can be difficult. The Common Snapping Turtle (Chelydra serpentine) is considered a major predator of waterfowl and other aquatic birds, but the evidence for this reputation is based largely on circumstantial or indirect evidence rather than direct observations. Herein, the first documented observations of a snapping turtle attacking and killing an adult Western Grebe (Aechmophorus occidentalis) are described.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.033.0113","issn":"15244695","usgsCitation":"Igl, L., and Peterson, S., 2010, Common snapping turtle preys on an adult western grebe: Waterbirds, v. 33, p. 105-109, https://doi.org/10.1675/063.033.0113.","productDescription":"5 p.","startPage":"105","endPage":"109","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":245019,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217102,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.033.0113"}],"volume":"33","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f801e4b0c8380cd4ce1a","contributors":{"authors":[{"text":"Igl, L.D. 0000-0003-0530-7266","orcid":"https://orcid.org/0000-0003-0530-7266","contributorId":13568,"corporation":false,"usgs":true,"family":"Igl","given":"L.D.","affiliations":[],"preferred":false,"id":459162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, S.L.","contributorId":88981,"corporation":false,"usgs":true,"family":"Peterson","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":459163,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70037142,"text":"70037142 - 2010 - Time-dependent seismic tomography","interactions":[],"lastModifiedDate":"2017-10-31T14:06:49","indexId":"70037142","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"Time-dependent seismic tomography","docAbstract":"Of methods for measuring temporal changes in seismic-wave speeds in the Earth, seismic tomography is among those that offer the highest spatial resolution. 3-D tomographic methods are commonly applied in this context by inverting seismic wave arrival time data sets from different epochs independently and assuming that differences in the derived structures represent real temporal variations. This assumption is dangerous because the results of independent inversions would differ even if the structure in the Earth did not change, due to observational errors and differences in the seismic ray distributions. The latter effect may be especially severe when data sets include earthquake swarms or aftershock sequences, and may produce the appearance of correlation between structural changes and seismicity when the wave speeds are actually temporally invariant. A better approach, which makes it possible to assess what changes are truly required by the data, is to invert multiple data sets simultaneously, minimizing the difference between models for different epochs as well as the rms arrival-time residuals. This problem leads, in the case of two epochs, to a system of normal equations whose order is twice as great as for a single epoch. The direct solution of this system would require twice as much memory and four times as much computational effort as would independent inversions. We present an algorithm, tomo4d, that takes advantage of the structure and sparseness of the system to obtain the solution with essentially no more effort than independent inversions require. No claim to original US government works Journal compilation ?? 2010 RAS.","language":"English","publisher":"Oxford Academic","doi":"10.1111/j.1365-246X.2010.04668.x","issn":"0956540X","usgsCitation":"Julian, B., and Foulger, G., 2010, Time-dependent seismic tomography: Geophysical Journal International, v. 182, no. 3, p. 1327-1338, https://doi.org/10.1111/j.1365-246X.2010.04668.x.","productDescription":"12 p.","startPage":"1327","endPage":"1338","numberOfPages":"12","ipdsId":"IP-011001","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":475879,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1111/j.1365-246x.2010.04668.x","text":"External Repository"},{"id":244930,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217020,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-246X.2010.04668.x"}],"volume":"182","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-07-08","publicationStatus":"PW","scienceBaseUri":"505bb3bce4b08c986b325f94","contributors":{"authors":[{"text":"Julian, B.R.","contributorId":101272,"corporation":false,"usgs":true,"family":"Julian","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":459586,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foulger, G.R.","contributorId":14439,"corporation":false,"usgs":false,"family":"Foulger","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":459585,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70037141,"text":"70037141 - 2010 - Spatial variation in keystone effects: Small mammal diversity associated with black-tailed prairie dog colonies","interactions":[],"lastModifiedDate":"2012-03-12T17:21:48","indexId":"70037141","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1445,"text":"Ecography","active":true,"publicationSubtype":{"id":10}},"title":"Spatial variation in keystone effects: Small mammal diversity associated with black-tailed prairie dog colonies","docAbstract":"Species with extensive geographic ranges may interact with different species assemblages at distant locations, with the result that the nature of the interactions may vary spatially. Black-tailed prairie dogs Cynomys ludovicianus occur from Canada to Mexico in grasslands of the western Great Plains of North America. Black-tailed prairie dogs alter vegetation and dig extensive burrow systems that alter grassland habitats for plants and other animal species. These alterations of habitat justify the descriptor \" ecological engineer,\" and the resulting changes in species composition have earned them status as a keystone species. We examined the impact of black-tailed prairie dogs on small mammal assemblages by trapping at on- and off-colony locations at eight study areas across the species' geographic range. We posed 2 nested hypotheses: 1) prairie dogs function as a keystone species for other rodent species; and 2) the keystone role varies spatially. Assuming that it does, we asked what are the sources of the variation? Black-tailed prairie dogs consistently functioned as a keystone species in that there were strong statistically significant differences in community composition on versus off prairie dog colonies across the species range in prairie grassland. Small mammal species composition varied along both latitudinal and longitudinal gradients, and species richness varied from 4 to 11. Assemblages closer together were more similar; such correlations approximately doubled when including only on- or off-colony grids. Black-tailed prairie dogs had a significant effect on associated rodent assemblages that varied regionally, dependent upon the composition of the local rodent species pool. Over the range of the black-tailed prairie dog, on-colony rodent richness and evenness were less variable, and species composition was more consistent than off-colony assemblages. ?? 2010 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1600-0587.2009.05746.x","issn":"09067590","usgsCitation":"Cully, J., Collinge, S., Van Nimwegen, R.E., Ray, C., Johnson, W., Thiagarajan, B., Conlin, D., and Holmes, B., 2010, Spatial variation in keystone effects: Small mammal diversity associated with black-tailed prairie dog colonies: Ecography, v. 33, no. 4, p. 667-677, https://doi.org/10.1111/j.1600-0587.2009.05746.x.","startPage":"667","endPage":"677","numberOfPages":"11","costCenters":[],"links":[{"id":217019,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1600-0587.2009.05746.x"},{"id":244929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-03-03","publicationStatus":"PW","scienceBaseUri":"505b94bbe4b08c986b31ac15","contributors":{"authors":[{"text":"Cully, J.F.","contributorId":92056,"corporation":false,"usgs":true,"family":"Cully","given":"J.F.","affiliations":[],"preferred":false,"id":459583,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collinge, S.K.","contributorId":58832,"corporation":false,"usgs":true,"family":"Collinge","given":"S.K.","email":"","affiliations":[],"preferred":false,"id":459580,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Van Nimwegen, R. E.","contributorId":58121,"corporation":false,"usgs":true,"family":"Van Nimwegen","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":459579,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ray, C.","contributorId":40758,"corporation":false,"usgs":true,"family":"Ray","given":"C.","email":"","affiliations":[],"preferred":false,"id":459578,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, W.C.","contributorId":68003,"corporation":false,"usgs":true,"family":"Johnson","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":459582,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thiagarajan, Bala","contributorId":92520,"corporation":false,"usgs":true,"family":"Thiagarajan","given":"Bala","email":"","affiliations":[],"preferred":false,"id":459584,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Conlin, D.B.","contributorId":15437,"corporation":false,"usgs":true,"family":"Conlin","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":459577,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Holmes, B.E.","contributorId":59274,"corporation":false,"usgs":true,"family":"Holmes","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":459581,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70037149,"text":"70037149 - 2010 - Influence of roads, rivers, and mountains on natal dispersal of white-tailed deer","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037149","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Influence of roads, rivers, and mountains on natal dispersal of white-tailed deer","docAbstract":"Natural and anthropogenic landscape features, such as rivers, mountain ranges, and roads can alter animal dispersal paths and movement patterns. Consequently landscape, through its effects on dispersal, may influence many ecological processes, including disease transmission, invasion dynamics, and gene flow. To investigate influences of landscape features on dispersal patterns of a large mammal, we captured and radiomarked 363 juvenile male white-tailed deer (Odocoileus virginianus), including 212 confirmed dispersers, in 2 topographically dissimilar study areas in Pennsylvania, USA. Dispersal azimuths were uniformly distributed in the western study area (WSA), where there was irregular, hilly topography. Mean dispersal azimuths paralleled ridge direction in the eastern study area, where long parallel ridges were aligned northeastsouthwest. Major roads in both areas and a large river in the WSA were semipermeable barriers to dispersal of juvenile males; dispersal paths were less likely to intersect these linear features. Dispersal movements were direct and brief, typically lasting <12 hours. For all dispersers, we found no evidence for preference or avoidance of establishing adult, postdispersal ranges in proximity to roads; however, deer that encountered roads near the terminus of their dispersal path were more likely to stop on the near side. Further, for deer that established postdispersal home ranges near major roads, these features influenced range placement such that locations were typically clustered on one side of the road. The influence of roads, rivers, and mountains on dispersal paths and postdispersal locations of white-tailed deer suggest that landscape-specific features should be considered in conservation and management of this and possibly other species of large mammals. ?? 2010 The Wildlife Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2193/2009-096","issn":"0022541X","usgsCitation":"Long, E., Diefenbach, D., Wallingford, B., and Rosenberry, C., 2010, Influence of roads, rivers, and mountains on natal dispersal of white-tailed deer: Journal of Wildlife Management, v. 74, no. 6, p. 1242-1249, https://doi.org/10.2193/2009-096.","startPage":"1242","endPage":"1249","numberOfPages":"8","costCenters":[],"links":[{"id":217139,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/2009-096"},{"id":245058,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"74","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b73e4b0c8380cd62539","contributors":{"authors":[{"text":"Long, E.S.","contributorId":85305,"corporation":false,"usgs":true,"family":"Long","given":"E.S.","email":"","affiliations":[],"preferred":false,"id":459614,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Diefenbach, Duane R. 0000-0001-5111-1147","orcid":"https://orcid.org/0000-0001-5111-1147","contributorId":106592,"corporation":false,"usgs":true,"family":"Diefenbach","given":"Duane R.","affiliations":[],"preferred":false,"id":459615,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wallingford, B.D.","contributorId":62726,"corporation":false,"usgs":true,"family":"Wallingford","given":"B.D.","email":"","affiliations":[],"preferred":false,"id":459613,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rosenberry, C.S.","contributorId":22884,"corporation":false,"usgs":true,"family":"Rosenberry","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":459612,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037029,"text":"70037029 - 2010 - Monitoring on-orbit calibration stability of the Terra MODIS and Landsat 7 ETM+ sensors using pseudo-invariant test sites","interactions":[],"lastModifiedDate":"2017-04-05T14:15:43","indexId":"70037029","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring on-orbit calibration stability of the Terra MODIS and Landsat 7 ETM+ sensors using pseudo-invariant test sites","docAbstract":"The ability to detect and quantify changes in the Earth's environment depends on sensors that can provide calibrated, consistent measurements of the Earth's surface features through time. A critical step in this process is to put image data from different sensors onto a common radiometric scale. This work focuses on monitoring the long-term on-orbit calibration stability of the Terra Moderate Resolution Imaging Spectroradiometer (MODIS) and the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) sensors using the Committee on Earth Observation Satellites (CEOS) reference standard pseudo-invariant test sites (Libya 4, Mauritania 1/2, Algeria 3, Libya 1, and Algeria 5). These sites have been frequently used as radiometric targets because of their relatively stable surface conditions temporally. This study was performed using all cloud-free calibrated images from the Terra MODIS and the L7 ETM+ sensors, acquired from launch to December 2008. Homogeneous regions of interest (ROI) were selected in the calibrated images and the mean target statistics were derived from sensor measurements in terms of top-of-atmosphere (TOA) reflectance. For each band pair, a set of fitted coefficients (slope and offset) is provided to monitor the long-term stability over very stable pseudo-invariant test sites. The average percent differences in intercept from the long-term trends obtained from the ETM + TOA reflectance estimates relative to the MODIS for all the CEOS reference standard test sites range from 2.5% to 15%. This gives an estimate of the collective differences due to the Relative Spectral Response (RSR) characteristics of each sensor, bi-directional reflectance distribution function (BRDF), spectral signature of the ground target, and atmospheric composition. The lifetime TOA reflectance trends from both sensors over 10 years are extremely stable, changing by no more than 0.4% per year in its TOA reflectance over the CEOS reference standard test sites.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.rse.2009.12.003","issn":"00344257","usgsCitation":"Chander, G., Xiong, X., Choi, T., and Angal, A., 2010, Monitoring on-orbit calibration stability of the Terra MODIS and Landsat 7 ETM+ sensors using pseudo-invariant test sites: Remote Sensing of Environment, v. 114, no. 4, p. 925-939, https://doi.org/10.1016/j.rse.2009.12.003.","productDescription":"15 p.","startPage":"925","endPage":"939","numberOfPages":"15","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":245110,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217188,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.rse.2009.12.003"}],"volume":"114","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5dd0e4b0c8380cd705f6","contributors":{"authors":[{"text":"Chander, G.","contributorId":51449,"corporation":false,"usgs":true,"family":"Chander","given":"G.","affiliations":[],"preferred":false,"id":459044,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xiong, X.","contributorId":54822,"corporation":false,"usgs":true,"family":"Xiong","given":"X.","email":"","affiliations":[],"preferred":false,"id":459046,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Choi, T.","contributorId":21794,"corporation":false,"usgs":true,"family":"Choi","given":"T.","email":"","affiliations":[],"preferred":false,"id":459043,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Angal, A.","contributorId":52716,"corporation":false,"usgs":true,"family":"Angal","given":"A.","affiliations":[],"preferred":false,"id":459045,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037084,"text":"70037084 - 2010 - A late-Middle Pleistocene (Marine Isotope Stage 6) vegetated surface buried by Old Crow tephra at the Palisades, interior Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037084","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"A late-Middle Pleistocene (Marine Isotope Stage 6) vegetated surface buried by Old Crow tephra at the Palisades, interior Alaska","docAbstract":"A 40??cm thick primary bed of Old Crow tephra (131??????11??ka), an important stratigraphic marker in eastern Beringia, directly overlies a vegetated surface at Palisades West, on the Yukon River in central Alaska. Analyses of insect, bryophyte, and vascular plant macrofossils from the buried surface and underlying organic-rich silt suggest the local presence of an aquatic environment and mesic shrub-tundra at the time of tephra deposition. Autochthonous plant and insect macrofossils from peat directly overlying Old Crow tephra suggest similar aquatic habitats and hydric to mesic tundra environments, though pollen counts indicate a substantial herbaceous component to the regional tundra vegetation. Trace amounts of arboreal pollen in sediments associated with the tephra probably reflect reworking from older deposits, rather than the local presence of trees. The revised glass fission-track age for Old Crow tephra places its deposition closer to the time of the last interglaciation than earlier age determinations, but stratigraphy and paleoecology of sites with Old Crow tephra indicate a late Marine Isotope Stage 6 age. Regional permafrost degradation and associated thaw slumping are responsible for the close stratigraphic and paleoecological relations between Old Crow tephra and last interglacial deposits at some sites in eastern Beringia. ?? 2009 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.quascirev.2009.12.003","issn":"02773791","usgsCitation":"Reyes, A., Jensen, B., Zazula, G., Ager, T.A., Kuzmina, S., La, F.C., and Froese, D., 2010, A late-Middle Pleistocene (Marine Isotope Stage 6) vegetated surface buried by Old Crow tephra at the Palisades, interior Alaska: Quaternary Science Reviews, v. 29, no. 5-6, p. 801-811, https://doi.org/10.1016/j.quascirev.2009.12.003.","startPage":"801","endPage":"811","numberOfPages":"11","costCenters":[],"links":[{"id":217076,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quascirev.2009.12.003"},{"id":244988,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e435e4b0c8380cd464d5","contributors":{"authors":[{"text":"Reyes, A.V.","contributorId":104738,"corporation":false,"usgs":true,"family":"Reyes","given":"A.V.","email":"","affiliations":[],"preferred":false,"id":459304,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jensen, B.J.L.","contributorId":65696,"corporation":false,"usgs":true,"family":"Jensen","given":"B.J.L.","email":"","affiliations":[],"preferred":false,"id":459301,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zazula, G.D.","contributorId":24595,"corporation":false,"usgs":true,"family":"Zazula","given":"G.D.","affiliations":[],"preferred":false,"id":459299,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ager, T. A.","contributorId":88386,"corporation":false,"usgs":true,"family":"Ager","given":"T.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":459302,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kuzmina, S.","contributorId":94889,"corporation":false,"usgs":true,"family":"Kuzmina","given":"S.","affiliations":[],"preferred":false,"id":459303,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"La, Farge C.","contributorId":21790,"corporation":false,"usgs":true,"family":"La","given":"Farge","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":459298,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Froese, D.G.","contributorId":41197,"corporation":false,"usgs":true,"family":"Froese","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":459300,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70037120,"text":"70037120 - 2010 - Valuing ecosystem services from wetlands restoration in the Mississippi Alluvial Valley","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037120","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1453,"text":"Ecological Economics","active":true,"publicationSubtype":{"id":10}},"title":"Valuing ecosystem services from wetlands restoration in the Mississippi Alluvial Valley","docAbstract":"This study assesses the value of restoring forested wetlands via the U.S. government's Wetlands Reserve Program (WRP) in the Mississippi Alluvial Valley by quantifying and monetizing ecosystem services. The three focal services are greenhouse gas (GHG) mitigation, nitrogen mitigation, and waterfowl recreation. Site- and region-level measurements of these ecosystem services are combined with process models to quantify their production on agricultural land, which serves as the baseline, and on restored wetlands. We adjust and transform these measures into per-hectare, valuation-ready units and monetize them with prices from emerging ecosystem markets and the environmental economics literature. By valuing three of the many ecosystem services produced, we generate lower bound estimates for the total ecosystem value of the wetlands restoration. Social welfare value is found to be between $1435 and $1486/ha/year, with GHG mitigation valued in the range of $171 to $222, nitrogen mitigation at $1248, and waterfowl recreation at $16. Limited to existing markets, the estimate for annual market value is merely $70/ha, but when fully accounting for potential markets, this estimate rises to $1035/ha. The estimated social value surpasses the public expenditure or social cost of wetlands restoration in only 1 year, indicating that the return on public investment is very attractive for the WRP. Moreover, the potential market value is substantially greater than landowner opportunity costs, showing that payments to private landowners to restore wetlands could also be profitable for individual landowners. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Economics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecolecon.2009.11.022","issn":"09218009","usgsCitation":"Jenkins, W., Murray, B.C., Kramer, R., and Faulkner, S., 2010, Valuing ecosystem services from wetlands restoration in the Mississippi Alluvial Valley: Ecological Economics, v. 69, no. 5, p. 1051-1061, https://doi.org/10.1016/j.ecolecon.2009.11.022.","startPage":"1051","endPage":"1061","numberOfPages":"11","costCenters":[],"links":[{"id":487922,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10161/6740","text":"External Repository"},{"id":217162,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecolecon.2009.11.022"},{"id":245083,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc10ee4b08c986b32a431","contributors":{"authors":[{"text":"Jenkins, W.A.","contributorId":54438,"corporation":false,"usgs":true,"family":"Jenkins","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":459479,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murray, B. C.","contributorId":49870,"corporation":false,"usgs":false,"family":"Murray","given":"B.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":459478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kramer, R.A.","contributorId":60435,"corporation":false,"usgs":true,"family":"Kramer","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":459481,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Faulkner, S.P.","contributorId":55190,"corporation":false,"usgs":true,"family":"Faulkner","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":459480,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037206,"text":"70037206 - 2010 - Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70037206","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand","docAbstract":"Pembroke Granulite from Fiordland, New Zealand provides a window into the mid- to lower crust of magmatic arcs. Garnet Sm-Nd and zircon U-Pb ages constrain the timing and duration of high-P partial melting that produced trondhjemitic high Sr/Y magma. Trace element zoning in large, euhedral garnet is compatible with little post growth modification and supports the interpretation that garnet Sm-Nd ages of 126.1??2.0 and 122.6??2.0. Ma date crystal growth. Integration of the garnet ages with U-Pb zircon ages elucidates a history of intrusion(?) and a protracted period of high-temperature metamorphism and partial melting. The oldest zircon ages of 163 to 150. Ma reflect inheritance or intrusion and a cluster of zircon ages ca. 134. Ma date orthopyroxene-bearing mineral assemblages that may be magmatic or metamorphic in origin. Zircon and garnet ages from unmelted gneiss and garnet reaction zones record garnet granulite facies metamorphism at 128 to 126. Ma. Peritectic garnet and additional zircon ages from trondhjemite veins and garnet reaction zones indicate that garnet growth and partial melting lasted until ca. 123. Ma. Two single fraction garnet ages and young zircon ages suggest continued high-temperature re-equilibration until ca. 95. Ma. Phase diagram sections constrain orthopyroxene assemblages to <0.6 GPa @ 650??C, peak garnet granulite facies metamorphic conditions to 680-815??C @ 1.1-1.4. GPa, and a P-T path with a P increase of???0.5. GPa. These sections are compatible with water contents???0.28wt.%, local dehydration during garnet granulite metamorphism, and <0.3. GPa P increases during garnet growth. Results demonstrate the utility of integrated U-Pb zircon and Sm-Nd garnet ages, and phase diagram sections for understanding the nature, duration, and conditions of deep crustal metamorphism and melting. Geochronologic and thermobarometric data for garnet granulite indicate that thickening of arc crust, which caused high-pressure metamorphism in northern Fiordland, must have occurred prior to 126. Ma, that loading occurred at a rate of ca. 0.06. GPa/m.y., and that garnet granulite metamorphism lasted 3-7m.y. Locally-derived partial melts formed and crystallized in considerably less than 10 and perhaps as little as 3m.y. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2010.02.015","issn":"00092541","usgsCitation":"Stowell, H., Tulloch, A., Zuluaga, C., and Koenig, A., 2010, Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand: Chemical Geology, v. 273, no. 1-2, p. 91-110, https://doi.org/10.1016/j.chemgeo.2010.02.015.","startPage":"91","endPage":"110","numberOfPages":"20","costCenters":[],"links":[{"id":244964,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217053,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2010.02.015"}],"volume":"273","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb3e4e4b08c986b326051","contributors":{"authors":[{"text":"Stowell, H.","contributorId":19409,"corporation":false,"usgs":true,"family":"Stowell","given":"H.","email":"","affiliations":[],"preferred":false,"id":459899,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tulloch, A.","contributorId":10645,"corporation":false,"usgs":true,"family":"Tulloch","given":"A.","email":"","affiliations":[],"preferred":false,"id":459898,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zuluaga, C.","contributorId":37177,"corporation":false,"usgs":true,"family":"Zuluaga","given":"C.","email":"","affiliations":[],"preferred":false,"id":459900,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Koenig, A. 0000-0002-5230-0924","orcid":"https://orcid.org/0000-0002-5230-0924","contributorId":64037,"corporation":false,"usgs":true,"family":"Koenig","given":"A.","affiliations":[],"preferred":false,"id":459901,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037056,"text":"70037056 - 2010 - Population dynamics of American horseshoe crabs-historic climatic events and recent anthropogenic pressures","interactions":[],"lastModifiedDate":"2012-03-12T17:22:10","indexId":"70037056","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2774,"text":"Molecular Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Population dynamics of American horseshoe crabs-historic climatic events and recent anthropogenic pressures","docAbstract":"Populations of the American horseshoe crab, Limulus polyphemus, have declined, but neither the causes nor the magnitude are fully understood. In order to evaluate historic demography, variation at 12 microsatellite DNA loci surveyed in 1218 L. polyphemus sampled from 28 localities was analysed with Bayesian coalescent-based methods. The analysis showed strong declines in population sizes throughout the species' distribution except in the geographically isolated southern-most population in Mexico, where a strong increase in population size was inferred. Analyses suggested that demographic changes in the core of the distribution occurred in association with the recolonization after the Ice Age and also by anthropogenic effects, such as the past overharvest of the species for fertilizer or the current use of the animals as bait for American eel (Anguilla rostrata) and whelk (Busycon spp.) fisheries. This study highlights the importance of considering both climatic changes and anthropogenic effects in efforts to understand population dynamics-a topic which is highly relevant in the ongoing assessments of the effects of climate change and overharvest. ?? 2010 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-294X.2010.04732.x","issn":"09621083","usgsCitation":"Faurby, S., King, T., Obst, M., Hallerman, E., Pertoldi, C., and Funch, P., 2010, Population dynamics of American horseshoe crabs-historic climatic events and recent anthropogenic pressures: Molecular Ecology, v. 19, no. 15, p. 3088-3100, https://doi.org/10.1111/j.1365-294X.2010.04732.x.","startPage":"3088","endPage":"3100","numberOfPages":"13","costCenters":[],"links":[{"id":217158,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-294X.2010.04732.x"},{"id":245079,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"15","noUsgsAuthors":false,"publicationDate":"2010-06-25","publicationStatus":"PW","scienceBaseUri":"505a7d46e4b0c8380cd79e51","contributors":{"authors":[{"text":"Faurby, S.","contributorId":95291,"corporation":false,"usgs":true,"family":"Faurby","given":"S.","email":"","affiliations":[],"preferred":false,"id":459177,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"King, T.L.","contributorId":93416,"corporation":false,"usgs":true,"family":"King","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":459176,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Obst, M.","contributorId":24596,"corporation":false,"usgs":true,"family":"Obst","given":"M.","email":"","affiliations":[],"preferred":false,"id":459174,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hallerman, E.M.","contributorId":23671,"corporation":false,"usgs":true,"family":"Hallerman","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":459173,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pertoldi, C.","contributorId":21378,"corporation":false,"usgs":true,"family":"Pertoldi","given":"C.","email":"","affiliations":[],"preferred":false,"id":459172,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Funch, P.","contributorId":91335,"corporation":false,"usgs":true,"family":"Funch","given":"P.","email":"","affiliations":[],"preferred":false,"id":459175,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70037122,"text":"70037122 - 2010 - Extraction of in situ cosmogenic 14C from olivine","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037122","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3225,"text":"Radiocarbon","active":true,"publicationSubtype":{"id":10}},"title":"Extraction of in situ cosmogenic 14C from olivine","docAbstract":"Chemical pretreatment and extraction techniques have been developed previously to extract in situ cosmogenic radiocarbon (in situ 14C) from quartz and carbonate. These minerals can be found in most environments on Earth, but are usually absent from mafic terrains. To fill this gap, we conducted numerous experiments aimed at extracting in situ 14C from olivine ((Fe,Mg)2SiO4). We were able to extract a stable and reproducible in situ 14C component from olivine using stepped heating and a lithium metaborate (LiBO2) flux, following treatment with dilute HNO3 over a variety of experimental conditions. However, measured concentrations for samples from the Tabernacle Hill basalt flow (17.3 ?? 0.3 ka4) in central Utah and the McCarty's basalt flow (3.0 ?? 0.2 ka) in western New Mexico were significantly lower than expected based on exposure of olivine in our samples to cosmic rays at each site. The source of the discrepancy is not clear. We speculate that in situ 14C atoms may not have been released from Mg-rich crystal lattices (the olivine composition at both sites was ~Fo65Fa35). Alternatively, a portion of the 14C atoms released from the olivine grains may have become trapped in synthetic spinel-like minerals that were created in the olivine-flux mixture during the extraction process, or were simply retained in the mixture itself. Regardless, the magnitude of the discrepancy appears to be inversely proportional to the Fe/(Fe+Mg) ratio of the olivine separates. If we apply a simple correction factor based on the chemical composition of the separates, then corrected in situ 14C concentrations are similar to theoretical values at both sites. At this time, we do not know if this agreement is fortuitous or real. Future research should include measurement of in situ 14C concentrations in olivine from known-age basalt flows with different chemical compositions (i.e. more Fe-rich) to determine if this correction is robust for all olivine-bearing rocks. ?? 2010 by the Arizona Board of Regents on behalf of the University of Arizona.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Radiocarbon","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00338222","usgsCitation":"Pigati, J., Lifton, N., Jull, A.T., and Quade, J., 2010, Extraction of in situ cosmogenic 14C from olivine: Radiocarbon, v. 52, no. 3, p. 1244-1260.","startPage":"1244","endPage":"1260","numberOfPages":"17","costCenters":[],"links":[{"id":245114,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e5ee4b0c8380cd533ff","contributors":{"authors":[{"text":"Pigati, J.S.","contributorId":80486,"corporation":false,"usgs":true,"family":"Pigati","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":459491,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lifton, N.A.","contributorId":9090,"corporation":false,"usgs":true,"family":"Lifton","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":459488,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jull, A.J. Timothy","contributorId":53629,"corporation":false,"usgs":true,"family":"Jull","given":"A.J.","email":"","middleInitial":"Timothy","affiliations":[],"preferred":false,"id":459490,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Quade, Jay","contributorId":22108,"corporation":false,"usgs":false,"family":"Quade","given":"Jay","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":459489,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037121,"text":"70037121 - 2010 - Holocene coastal dune fields used as indicators of net littoral transport: West Coast, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037121","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1801,"text":"Geomorphology","active":true,"publicationSubtype":{"id":10}},"title":"Holocene coastal dune fields used as indicators of net littoral transport: West Coast, USA","docAbstract":"Between Point Grenville, Washington, and Point Conception, California (1500 km distance) 21 dune fields record longshore transport in 20 littoral cells during the late Holocene. The direction of predominant littoral transport is established by relative positions of dune fields (north, central, or south) in 17 representative littoral cells. Dune field position is north of cell midpoints in northernmost Oregon and Washington, but is south of cell midpoints in southern Oregon and California. Downdrift sand trapping occurs at significant changes in shoreline angle and/or at bounding headlands that project at least 2.5 km seaward from the general coastal trend. Sand bypassing occurs around small headlands of less than 0.5 km in projection distance. A northward shift of the winter low-pressure center in the northeast Pacific Ocean is modeled from 11 ka to 0 ka. Nearshore current forcing in southern Oregon and northern California switched from northward in earliest Holocene time to southward in late Holocene time. The late Holocene (5-0 ka) is generally characterized by net northward littoral drift in northernmost Oregon and Washington and by net southward littoral drift in southernmost Oregon and California. A regional divergence of net transport direction in central Oregon, i.e. no net drift, is consistent with modeled wind and wave forcing at the present time (0 ka). ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomorphology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.geomorph.2009.10.013","issn":"0169555X","usgsCitation":"Peterson, C., Stock, E., Hart, R., Percy, D., Hostetler, S.W., and Knott, J., 2010, Holocene coastal dune fields used as indicators of net littoral transport: West Coast, USA: Geomorphology, v. 116, no. 1-2, p. 115-134, https://doi.org/10.1016/j.geomorph.2009.10.013.","startPage":"115","endPage":"134","numberOfPages":"20","costCenters":[],"links":[{"id":217163,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.geomorph.2009.10.013"},{"id":245084,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"116","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a31dae4b0c8380cd5e2b3","contributors":{"authors":[{"text":"Peterson, C. D.","contributorId":79897,"corporation":false,"usgs":true,"family":"Peterson","given":"C. D.","affiliations":[],"preferred":false,"id":459487,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stock, E.","contributorId":13438,"corporation":false,"usgs":true,"family":"Stock","given":"E.","email":"","affiliations":[],"preferred":false,"id":459482,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hart, R.","contributorId":52793,"corporation":false,"usgs":true,"family":"Hart","given":"R.","affiliations":[],"preferred":false,"id":459485,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Percy, D.","contributorId":70913,"corporation":false,"usgs":true,"family":"Percy","given":"D.","email":"","affiliations":[],"preferred":false,"id":459486,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hostetler, S. W. 0000-0003-2272-8302","orcid":"https://orcid.org/0000-0003-2272-8302","contributorId":42911,"corporation":false,"usgs":true,"family":"Hostetler","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":459484,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Knott, J.R.","contributorId":26847,"corporation":false,"usgs":true,"family":"Knott","given":"J.R.","affiliations":[],"preferred":false,"id":459483,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70037081,"text":"70037081 - 2010 - Trends and drivers of marine debris on the Atlantic coast of the United States 1997-2007","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037081","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Trends and drivers of marine debris on the Atlantic coast of the United States 1997-2007","docAbstract":"For the first time, we documented regional differences in amounts and long-term trends of marine debris along the US Atlantic coast. The Southeast Atlantic had low land-based and general-source debris loads as well as no increases despite a 19% increase in coastal population. The Northeast (8% population increase) also had low land-based and general-source debris loads and no increases. The Mid-Atlantic (10% population increase) fared the worst, with heavy land-based and general-source debris loads that increased over time. Ocean-based debris did not change in the Northeast where the fishery is relatively stable; it declined over the Mid-Atlantic and Southeast and was correlated with declining regional fisheries. Drivers, including human population, land use status, fishing activity, and oceanic current systems, had complex relationships with debris loads at local and regional scales. Management challenges remain undeniably large but solid information from long-term programs is one key to addressing this pressing pollution issue. ?? 2010.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Pollution Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marpolbul.2010.03.021","issn":"0025326X","usgsCitation":"Ribic, C., Sheavly, S., Rugg, D., and Erdmann, E.S., 2010, Trends and drivers of marine debris on the Atlantic coast of the United States 1997-2007: Marine Pollution Bulletin, v. 60, no. 8, p. 1231-1242, https://doi.org/10.1016/j.marpolbul.2010.03.021.","startPage":"1231","endPage":"1242","numberOfPages":"12","costCenters":[],"links":[{"id":217044,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpolbul.2010.03.021"},{"id":244955,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb7d0e4b08c986b3274ce","contributors":{"authors":[{"text":"Ribic, C. A. 0000-0003-2583-1778","orcid":"https://orcid.org/0000-0003-2583-1778","contributorId":6026,"corporation":false,"usgs":true,"family":"Ribic","given":"C. A.","affiliations":[],"preferred":false,"id":459287,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sheavly, S.B.","contributorId":80933,"corporation":false,"usgs":true,"family":"Sheavly","given":"S.B.","affiliations":[],"preferred":false,"id":459289,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rugg, D.J.","contributorId":7941,"corporation":false,"usgs":true,"family":"Rugg","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":459288,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Erdmann, Eric S.","contributorId":97743,"corporation":false,"usgs":true,"family":"Erdmann","given":"Eric","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":459290,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037236,"text":"70037236 - 2010 - Upper Cambrian chitons (Mollusca, polyplacophora) from Missouri, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70037236","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1142,"text":"Bulletins of American Paleontology","active":true,"publicationSubtype":{"id":10}},"title":"Upper Cambrian chitons (Mollusca, polyplacophora) from Missouri, USA","docAbstract":"Numerous new specimens reveal a greater presence of chitons in Upper Cambrian rocks than previously suspected. Evidence is presented showing that the chiton esthete sensory system is present in all chiton species in this study at the very beginning of the known polyplacophoran fossil record. The stratigraphic occurrences and paleobiogeography of Late Cambrian chitons are documented. The 14 previously-named families of Cambrian and Ordovician chitons are reviewed and analyzed. Aulochitonidae n. fam. is defined, based on Aulochiton n. gen.; A. sannerae n. sp. is also defined. The long misunderstood family Preacanthochitonidae and its type genus Preacanthochiton Bergenhayn, 1960, are placed in synonymy with Mattheviidae and Chelodes Davidson & King, 1874, respectively; Eochelodes Marek, 1962, also is placed in synonymy with Chelodes, and Elongata Stinchcomb & Darrough, 1995, is placed in synonymy with Hemithecella Ulrich & Bridge, 1941. At the species level, H. elongata Stinchcomb & Darrough, 1995, and Elongata perplexa Stinchcomb & Darrough, 1995, are placed in synonymy with H. eminensis Stinchcomb & Darrough, 1995. The Ordovician species H. abrupta Stinchcomb & Darrough, 1995, is transferred to the genus Chelodes as C. abrupta (Stinchcomb & Darrough, 1995). The Ordovician species Preacanthochiton baueri Hoare & Pojeta, 2006, is transferred to the genus Helminthochiton as H. ? baueri (Hoare & Pojeta, 2006). The Ordovician species H. marginatus Hoare & Pojeta, 2006, is transferred to the genus Litochiton as L. marginatus (Hoare & Pojeta, 2006). Matthevia walcotti Runnegar, Pojeta, Taylor, & Collins, 1979, is treated as a synonym of Hemithecella expansa Ulrich & Bridge, 1941. In addition, other multivalved Cambrian mollusks are discussed; within this group, Dycheiidae n. fam. is defined, as well as Paradycheia dorisae n. gen. and n. sp. Cladistic analysis indicates a close relationship among the genera here assigned to the Mattheviidae, and between Echinochiton Pojeta, Eernisse, Hoare, & Henderson, 2003, and mattheviids. The results suggest treating these taxa as stem-lineage chitons, and do not support the hypothesis that they are aplacophorans.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletins of American Paleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00075779","usgsCitation":"Pojeta, J., Vendrasco, M., and Darrough, G., 2010, Upper Cambrian chitons (Mollusca, polyplacophora) from Missouri, USA: Bulletins of American Paleontology, v. 2010, no. 379, p. 1-88.","startPage":"1","endPage":"88","numberOfPages":"88","costCenters":[],"links":[{"id":244935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2010","issue":"379","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd2be4b08c986b328efd","contributors":{"authors":[{"text":"Pojeta, J. Jr.","contributorId":55150,"corporation":false,"usgs":true,"family":"Pojeta","given":"J.","suffix":"Jr.","affiliations":[],"preferred":false,"id":460012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vendrasco, M.J.","contributorId":25013,"corporation":false,"usgs":true,"family":"Vendrasco","given":"M.J.","affiliations":[],"preferred":false,"id":460011,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Darrough, G.","contributorId":101074,"corporation":false,"usgs":true,"family":"Darrough","given":"G.","email":"","affiliations":[],"preferred":false,"id":460013,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}