{"pageNumber":"2833","pageRowStart":"70800","pageSize":"25","recordCount":184563,"records":[{"id":70025235,"text":"70025235 - 2003 - The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10","interactions":[],"lastModifiedDate":"2020-01-05T14:47:43","indexId":"70025235","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1620,"text":"FEMS Microbiology Letters","active":true,"publicationSubtype":{"id":10}},"title":"The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10","docAbstract":"<p>The respiratory arsenate reductase from the Gram-positive, haloalkaliphile,<span>&nbsp;</span><i>Bacillus selenitireducens</i><span>&nbsp;</span>strain MLS10 was purified and characterized. It is a membrane bound heterodimer (150 kDa) composed of two subunits ArrA (110 kDa) and ArrB (34 kDa), with an apparent<span>&nbsp;</span><i>K</i><sub>m</sub><span>&nbsp;</span>for arsenate of 34 µM and<span>&nbsp;</span><i>V</i><sub>max</sub><span>&nbsp;</span>of 2.5 µmol min<sup>−1</sup><span>&nbsp;</span>mg<sup>−1</sup>. Optimal activity occurred at pH 9.5 and 150 g l<sup>−1</sup><span>&nbsp;</span>of NaCl. Metal analysis (inductively coupled plasma mass spectrometry) of the holoenzyme and sequence analysis of the catalytic subunit (ArrA; the gene fr which was cloned and sequenced) indicate it is a member of the DMSO reductase family of molybdoproteins.</p><div class=\"article-metadata-panel clearfix\"><br data-mce-bogus=\"1\"></div>","language":"English","publisher":"Oxford Academic","doi":"10.1016/S0378-1097(03)00609-8","issn":"03781097","usgsCitation":"Afkar, E., Lisak, J., Saltikov, C., Basu, P., Oremland, R.S., and Stolz, J., 2003, The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10: FEMS Microbiology Letters, v. 226, no. 1, p. 107-112, https://doi.org/10.1016/S0378-1097(03)00609-8.","productDescription":"6 p.","startPage":"107","endPage":"112","numberOfPages":"6","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":478513,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/s0378-1097(03)00609-8","text":"Publisher Index Page"},{"id":235923,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"226","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf35e4b08c986b324627","contributors":{"authors":[{"text":"Afkar, E.","contributorId":105894,"corporation":false,"usgs":true,"family":"Afkar","given":"E.","email":"","affiliations":[],"preferred":false,"id":404354,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lisak, J.","contributorId":36715,"corporation":false,"usgs":true,"family":"Lisak","given":"J.","email":"","affiliations":[],"preferred":false,"id":404350,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Saltikov, C.","contributorId":77722,"corporation":false,"usgs":true,"family":"Saltikov","given":"C.","email":"","affiliations":[],"preferred":false,"id":404351,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Basu, P.","contributorId":35527,"corporation":false,"usgs":true,"family":"Basu","given":"P.","email":"","affiliations":[],"preferred":false,"id":404349,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Oremland, Ronald S. 0000-0001-7382-0147 roremlan@usgs.gov","orcid":"https://orcid.org/0000-0001-7382-0147","contributorId":931,"corporation":false,"usgs":true,"family":"Oremland","given":"Ronald","email":"roremlan@usgs.gov","middleInitial":"S.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":778883,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stolz, J.F.","contributorId":94022,"corporation":false,"usgs":true,"family":"Stolz","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":404352,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70025131,"text":"70025131 - 2003 - Lithospheric structure, composition, and thermal regime of the East European Craton: Implications for the subsidence of the Russian platform","interactions":[],"lastModifiedDate":"2012-03-12T17:20:27","indexId":"70025131","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Lithospheric structure, composition, and thermal regime of the East European Craton: Implications for the subsidence of the Russian platform","docAbstract":"A new mechanism for Paleozoic subsidence of the Russian, or East European, platform is suggested, since a model of lithosphere tilting during the Uralian subduction does not explain the post-Uralian sedimentation record. Alternatively, I propose that the Proterozoic and Paleozoic rifting (when a platform-scale Central Russia rift system and a set of Paleozoic rifts were formed) modified the structure and composition of cratonic lithosphere, and these tectono-magmatic events are responsible for the post-Uralian subsidence of the Russian platform. To support this hypothesis, (a) the thermal regime and the thickness of the lithosphere are analyzed, and (b) lithospheric density variations of non-thermal origin are calculated from free-board constraints. The results indicate that Proterozoic and Paleozoic rifting had different effects on the lithospheric structure and composition. (1) Proterozoic rifting is not reflected in the present thermal regime and did not cause significant lithosphere thinning (most of the Russian platform has lithospheric thickness of 150-180 km and the lithosphere of the NE Baltic Shield is 250-300 km thick). Paleozoic rifting resulted in pronounced lithospheric thinning (to 120-140 km) in the southern parts of the Russian platform. (2) Lithospheric density anomalies suggest that Proterozoic-Paleozoic rifting played an important role in the platform subsidence. The lithospheric mantle of the Archean-early Proterozoic part of the Baltic Shield is ??? 1.4 ?? 0.2% less dense than the typical Phanerozoic upper mantle. However, the density deficit in the subcrustal lithosphere of most of the Russian platform is only about (0.4-0.8) ?? 0.2% and decreases southwards to ???0%. Increased densities (likely associated with low depletion values) in the Russian platform suggest strong metasomatism of the cratonic lithosphere during rifting events, which led to its subsidence. It is proposed that only the lower part of the cratonic lithosphere was metasomatized as a result of Proterozoic rifting; the boundary between a depleted upper and more fertile lower layers can be at ca. 90-150 km depth and can produce a seismic pattern similar to the top of a seismic low-velocity zone. Paleozoic rifting has modified the entire lithospheric column and the regions affected are still subsiding. Published by Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0012-821X(03)00327-3","issn":"0012821X","usgsCitation":"Artemieva, I., 2003, Lithospheric structure, composition, and thermal regime of the East European Craton: Implications for the subsidence of the Russian platform: Earth and Planetary Science Letters, v. 213, no. 3-4, p. 431-446, https://doi.org/10.1016/S0012-821X(03)00327-3.","startPage":"431","endPage":"446","numberOfPages":"16","costCenters":[],"links":[{"id":478512,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://curis.ku.dk/ws/files/49250885/2003_EPSL_EEC_Art.PDF","text":"External Repository"},{"id":209472,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0012-821X(03)00327-3"},{"id":235952,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"213","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a48a1e4b0c8380cd67fda","contributors":{"authors":[{"text":"Artemieva, I.M.","contributorId":71728,"corporation":false,"usgs":true,"family":"Artemieva","given":"I.M.","email":"","affiliations":[],"preferred":false,"id":403943,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025048,"text":"70025048 - 2003 - Peleolakes and impact basins in southern Arabia Terra, including Meridiani Planum: Implications for the formation of hematite deposits on Mars","interactions":[],"lastModifiedDate":"2012-03-12T17:20:26","indexId":"70025048","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Peleolakes and impact basins in southern Arabia Terra, including Meridiani Planum: Implications for the formation of hematite deposits on Mars","docAbstract":"The hematite deposit in Meridiani Planum was selected for a Mars Exploration Rover (MER) landing site because water could be involved in the formation of hematite, and water is a key ingredient in the search for life. Our discovery of a chain of paleolake basins and channels along the southern margin of the hematite deposits in Meridiani Planum with the presence of the strongest hematite signature adjacent to a paleolake basin, supports the possible role of water in the formation of the hematite and the deposition of other layered materials in the region. The hematite may have formed by direct precipitation from lake water, as coatings precipitated from groundwater, or by oxidation of preexisting iron oxide minerals. The paleolake basins were fed by an extensive channel system, originating from an area larger than Texas and located south of the Schiaparelli impact basin. On the basis of stratigraphic relationships, the formation of channels in the region occurred over much of Mars' history, from before the layered materials in Meridiani Planum were deposited until recently. The location of the paleolake basins and channels is connected with the impact cratering history of the region. The earliest structure identified in this study is an ancient circular multiringed basin (800-1600 km diameter) that underlies the entire Meridiani Planum region. The MER landing site is located on the buried northern rim of a later 150 km diameter crater. This crater is partially filled with layered deposits that contained a paleolake in its southern portion. Copyright 2003 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01480227","usgsCitation":"Newsom, H.E., Barber, C., Hare, T., Schelble, R., Sutherland, V., and Feldman, W.C., 2003, Peleolakes and impact basins in southern Arabia Terra, including Meridiani Planum: Implications for the formation of hematite deposits on Mars: Journal of Geophysical Research E: Planets, v. 108, no. 12.","costCenters":[],"links":[{"id":235982,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"108","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a763ee4b0c8380cd77fe5","contributors":{"authors":[{"text":"Newsom, Horton E.","contributorId":67689,"corporation":false,"usgs":false,"family":"Newsom","given":"Horton","email":"","middleInitial":"E.","affiliations":[{"id":13339,"text":"University of New Mexico, Albuquerque","active":true,"usgs":false}],"preferred":false,"id":403582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barber, C.A.","contributorId":11390,"corporation":false,"usgs":true,"family":"Barber","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":403578,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hare, T.M. 0000-0001-8842-389X","orcid":"https://orcid.org/0000-0001-8842-389X","contributorId":43828,"corporation":false,"usgs":true,"family":"Hare","given":"T.M.","affiliations":[],"preferred":false,"id":403581,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schelble, R.T.","contributorId":98517,"corporation":false,"usgs":true,"family":"Schelble","given":"R.T.","email":"","affiliations":[],"preferred":false,"id":403583,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sutherland, V.A.","contributorId":24149,"corporation":false,"usgs":true,"family":"Sutherland","given":"V.A.","email":"","affiliations":[],"preferred":false,"id":403579,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Feldman, W. C.","contributorId":40767,"corporation":false,"usgs":false,"family":"Feldman","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":403580,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70025611,"text":"70025611 - 2003 - Observations of the effect of wind on the cooling of active lava flows","interactions":[],"lastModifiedDate":"2018-11-01T16:17:01","indexId":"70025611","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"Observations of the effect of wind on the cooling of active lava flows","docAbstract":"<p><span>We present the first direct observations of the cooling of active lava flows by the wind. We confirm that atmospheric convective cooling processes (i.e., the wind) dominate heat loss over the lifetime of a typical pahoehoe lava flow. In fact, the heat extracted by convection is greater than predicted, especially at wind speeds less than 5 m/s and surface temperatures less than 400°C. We currently estimate that the atmospheric heat transfer coefficient is about 45–50 W m</span><sup>−2</sup><span>K</span><sup>−1</sup><span>&nbsp;for a 10 m/s wind and a surface temperature ∼500°C. Further field experiments and theoretical studies should expand these results to a broader range of surface temperatures and wind speeds.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","doi":"10.1029/2003GL017994","issn":"00948276","usgsCitation":"Keszthelyi, L., Harris, A.J., and Dehn, J., 2003, Observations of the effect of wind on the cooling of active lava flows: Geophysical Research Letters, v. 30, no. 19, 4 p., https://doi.org/10.1029/2003GL017994.","productDescription":"4 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":478511,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2003gl017994","text":"Publisher Index Page"},{"id":236016,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"19","noUsgsAuthors":false,"publicationDate":"2003-10-08","publicationStatus":"PW","scienceBaseUri":"505a6ac0e4b0c8380cd7432a","contributors":{"authors":[{"text":"Keszthelyi, Laszlo P. 0000-0003-1879-4331 laz@usgs.gov","orcid":"https://orcid.org/0000-0003-1879-4331","contributorId":52802,"corporation":false,"usgs":true,"family":"Keszthelyi","given":"Laszlo P.","email":"laz@usgs.gov","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":405860,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harris, Andrew J. L.","contributorId":169434,"corporation":false,"usgs":false,"family":"Harris","given":"Andrew","email":"","middleInitial":"J. L.","affiliations":[],"preferred":false,"id":405861,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dehn, Jonathan","contributorId":49322,"corporation":false,"usgs":true,"family":"Dehn","given":"Jonathan","affiliations":[],"preferred":false,"id":405859,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025441,"text":"70025441 - 2003 - Toxicity evaluation with the microtox® test to assess the impact of <i>in situ</i> oiled shoreline treatment options: natural attenuation and sediment relocation","interactions":[],"lastModifiedDate":"2015-05-07T11:34:27","indexId":"70025441","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3466,"text":"Spill Science and Technology Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Toxicity evaluation with the microtox® test to assess the impact of <i>in situ</i> oiled shoreline treatment options: natural attenuation and sediment relocation","docAbstract":"<p><span>Changes in the toxicity levels of beach sediment, nearshore water, and bottom sediment samples were monitored with the Microtox</span><sup>&reg;</sup><span>&nbsp;Test to evaluate the two&nbsp;</span><i>in situ</i><span>&nbsp;oil spill treatment options of natural attenuation (natural recovery&ndash;&ndash;no treatment) and sediment relocation (surf washing). During a series of field trials, IF-30 fuel oil was intentionally sprayed onto the surface of three mixed sediment (pebble and sand) beaches on the island of Spitsbergen, Svalbard, Norway (78&deg;56</span><sup>&prime;</sup><span>&nbsp;N, 16&deg;45</span><sup>&prime;</sup><span>&nbsp;E). At a low wave-energy site (Site 1 with a 3-km wind fetch), where oil was stranded within the zone of normal wave action, residual oil concentrations and beach sediment toxicity levels were significantly reduced by both options in less than five days. At Site 3, a higher wave-energy site with a 40-km wind fetch, oil was intentionally stranded on the beach face in the upper intertidal/supratidal zones, above the level of normal wave activity. At this site under these experimental conditions, sediment relocation was effective in accelerating the removal of the oil from the sediments and reducing the Microtox</span><sup>&reg;</sup><span>&nbsp;Test toxicity response to background levels. In the untreated (natural attenuation) plot at this site, the fraction of residual oil remaining within the beach sediments after one year (70%) continued to generate a toxic response. Chemical and toxicological analyses of nearshore sediment and sediment-trap samples at both sites confirmed that oil and suspended mineral fines were effectively dispersed into the surrounding environment by the&nbsp;</span><i>in situ</i><span>&nbsp;treatments. In terms of secondary potential detrimental effects from the release of stranded oil from the beaches, the toxicity level (Microtox</span><sup>&reg;</sup><span>&nbsp;Test) of adjacent nearshore sediment samples did not exceed the Canadian regulatory limit for dredged spoils destined for ocean disposal.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S1353-2561(03)00039-2","issn":"13532561","usgsCitation":"Lee, K., Wohlgeschaffen, G., Tremblay, G.H., Johnson, B., Sergy, G.A., Prince, R.C., Guenette, C.C., and Owens, E.H., 2003, Toxicity evaluation with the microtox® test to assess the impact of <i>in situ</i> oiled shoreline treatment options: natural attenuation and sediment relocation: Spill Science and Technology Bulletin, v. 8, no. 3, p. 273-284, https://doi.org/10.1016/S1353-2561(03)00039-2.","productDescription":"12 p.","startPage":"273","endPage":"284","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":236157,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209560,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S1353-2561(03)00039-2"}],"volume":"8","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb5d7e4b08c986b326920","contributors":{"authors":[{"text":"Lee, Kenneth","contributorId":61064,"corporation":false,"usgs":true,"family":"Lee","given":"Kenneth","affiliations":[],"preferred":false,"id":405173,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wohlgeschaffen, Gary","contributorId":78137,"corporation":false,"usgs":true,"family":"Wohlgeschaffen","given":"Gary","email":"","affiliations":[],"preferred":false,"id":405175,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tremblay, Gilles H.","contributorId":92852,"corporation":false,"usgs":true,"family":"Tremblay","given":"Gilles","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":405177,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, B. Thomas","contributorId":105101,"corporation":false,"usgs":true,"family":"Johnson","given":"B. Thomas","affiliations":[],"preferred":false,"id":405178,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sergy, Gary A.","contributorId":36733,"corporation":false,"usgs":true,"family":"Sergy","given":"Gary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":405171,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Prince, Roger C.","contributorId":73391,"corporation":false,"usgs":true,"family":"Prince","given":"Roger","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":405174,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Guenette, Chantal C.","contributorId":46750,"corporation":false,"usgs":true,"family":"Guenette","given":"Chantal","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":405172,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Owens, Edward H.","contributorId":78138,"corporation":false,"usgs":true,"family":"Owens","given":"Edward","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":405176,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70025330,"text":"70025330 - 2003 - Remote sensing of rainfall for debris-flow hazard assessment","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70025330","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Remote sensing of rainfall for debris-flow hazard assessment","docAbstract":"Recent advances in remote sensing of rainfall provide more detailed temporal and spatial data on rainfall distribution. Four case studies of abundant debris flows over relatively small areas triggered during intense rainstorms are examined noting the potential for using remotely sensed rainfall data for landslide hazard analysis. Three examples with rainfall estimates from National Weather Service Doppler radar and one example with rainfall estimates from infrared imagery from a National Oceanic and Atmospheric Administration satellite are compared with ground-based measurements of rainfall and with landslide distribution. The advantages and limitations of using remote sensing of rainfall for landslide hazard analysis are discussed. ?? 2003 Millpress,.","largerWorkTitle":"International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings","conferenceTitle":"3rd International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment","conferenceDate":"10 September 2003 through 12 September 2003","conferenceLocation":"Davos","language":"English","usgsCitation":"Wieczorek, G.F., Coe, J.A., and Godt, J., 2003, Remote sensing of rainfall for debris-flow hazard assessment, <i>in</i> International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings, v. 2, Davos, 10 September 2003 through 12 September 2003, p. 1257-1268.","startPage":"1257","endPage":"1268","numberOfPages":"12","costCenters":[],"links":[{"id":236224,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa703e4b0c8380cd85195","contributors":{"editors":[{"text":"Rickenmann D.Chen C.L.","contributorId":128322,"corporation":true,"usgs":false,"organization":"Rickenmann D.Chen C.L.","id":536556,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Wieczorek, G. F.","contributorId":50143,"corporation":false,"usgs":true,"family":"Wieczorek","given":"G.","middleInitial":"F.","affiliations":[],"preferred":false,"id":404780,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coe, J. A.","contributorId":8867,"corporation":false,"usgs":true,"family":"Coe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":404779,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Godt, J. W.","contributorId":76732,"corporation":false,"usgs":true,"family":"Godt","given":"J. W.","affiliations":[],"preferred":false,"id":404781,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025531,"text":"70025531 - 2003 - Tectonic controls on the genesis of ignimbrites from the Campanian Volcanic Zone, southern Italy","interactions":[],"lastModifiedDate":"2012-03-12T17:20:25","indexId":"70025531","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2751,"text":"Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Tectonic controls on the genesis of ignimbrites from the Campanian Volcanic Zone, southern Italy","docAbstract":"The Campanian Plain is an 80 x 30 km region of southern Italy, bordered by the Apennine Chain, that has experienced subsidence during the Quaternary. This region, volcanologically active in the last 600 ka, has been identified as the Campanian Volcanic Zone (CVZ). The products of three periods of trachytic ignimbrite volcanism (289-246 ka, 157 ka and 106 ka) have been identified in the Apennine area in the last 300 ka. These deposits probably represent distal ash flow units of ignimbrite eruptions which occurred throughout the CVZ. The resulting deposits are interstratified with marine sediments indicating that periods of repeated volcano-tectonic emergence and subsidence may have occurred in the past. The eruption, defined as the Campanian Ignimbrite (CI), with the largest volume (310 km3), occurred in the CVZ 39 ka ago. The products of the CI eruption consist of two units (unit-1 and unit-2) formed from a single compositionally zoned magma body. Slightly different in composition, three trachytic melts constitute the two units. Unit-1 type A is an acid trachyte, type B is a trachyte and type C of unit-2 is a mafic trachyte. The CI, vented from pre-existing neotectonic faults, formed during the Apennine uplift, Initially the venting of volatile-rich type A magma deposited the products to the N-NE of the CVZ. During the eruption, the Acerra graben already affected by a NE-SW fault system, was transected by E-W faults, forming a cross-graben that extended to the gulf of Naples. E-W faults were then further dislocated by NE-SW transcurrent movements. This additional collapse significantly influenced the deposition of the B-type magma of unit-1, and the C-type magma of unit-2 toward the E-SE and S, in the Bay of Naples. The pumice fall deposit underlying the CI deposits, until now thought to be associated with the CI eruption, is not a strict transition from plinian to CI-forming activity. It is derived instead from an independent source probably located near the Naples area. This initial volcanic activity is assumed to be a precursor to the CI trachytic eruptions, which vented along regional faults.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00710-003-0014-4","issn":"09300708","usgsCitation":"Rolandi, G., Bellucci, F., Heizler, M., Belkin, H., and de Vivo, B., 2003, Tectonic controls on the genesis of ignimbrites from the Campanian Volcanic Zone, southern Italy: Mineralogy and Petrology, v. 79, no. 1-2, p. 3-31, https://doi.org/10.1007/s00710-003-0014-4.","startPage":"3","endPage":"31","numberOfPages":"29","costCenters":[],"links":[{"id":209397,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00710-003-0014-4"},{"id":235793,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba459e4b08c986b320297","contributors":{"authors":[{"text":"Rolandi, G.","contributorId":76472,"corporation":false,"usgs":false,"family":"Rolandi","given":"G.","email":"","affiliations":[],"preferred":false,"id":405539,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bellucci, F.","contributorId":47956,"corporation":false,"usgs":true,"family":"Bellucci","given":"F.","email":"","affiliations":[],"preferred":false,"id":405537,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Heizler, M.T.","contributorId":94799,"corporation":false,"usgs":true,"family":"Heizler","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":405540,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belkin, H. E. 0000-0001-7879-6529","orcid":"https://orcid.org/0000-0001-7879-6529","contributorId":38160,"corporation":false,"usgs":true,"family":"Belkin","given":"H. E.","affiliations":[],"preferred":false,"id":405536,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"de Vivo, B.","contributorId":50549,"corporation":false,"usgs":false,"family":"de Vivo","given":"B.","affiliations":[],"preferred":false,"id":405538,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025421,"text":"70025421 - 2003 - Regional carbon dynamics in monsoon Asia and its implications for the global carbon cycle","interactions":[],"lastModifiedDate":"2012-03-12T17:20:30","indexId":"70025421","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Regional carbon dynamics in monsoon Asia and its implications for the global carbon cycle","docAbstract":"Data on three major determinants of the carbon storage in terrestrial ecosystems are used with the process-based Terrestrial Ecosystem Model (TEM) to simulate the combined effect of climate variability, increasing atmospheric CO2 concentration, and cropland establishment and abandonment on the exchange of CO2 between the atmosphere and monsoon Asian ecosystems. During 1860-1990, modeled results suggest that monsoon Asia as a whole released 29.0 Pg C, which represents 50% of the global carbon release for this period. Carbon release varied across three subregions: East Asia (4.3 Pg C), South Asia (6.6 Pg C), and Southeast Asia (18.1 Pg C). For the entire region, the simulations indicate that land-use change alone has led to a loss of 42.6 Pg C. However, increasing CO2 and climate variability have added carbon to terrestrial ecosystems to compensate for 23% and 8% of the losses due to land-use change, respectively. During 1980-1989, monsoon Asia as a whole acted as a source of carbon to the atmosphere, releasing an average of 0.158 Pg C per year. Two of the subregions acted as net carbon source and one acted as a net carbon sink. Southeast Asia and South Asia were sources of 0.288 and 0.02 Pg C per year, respectively, while East Asia was a sink of 0.149 Pg C per year. Substantial interannual and decadal variations occur in the annual net carbon storage estimated by TEM due to comparable variations in summer precipitation and its effect on net primary production (NPP). At longer time scales, land-use change appears to be the important control on carbon dynamics in this region. ?? 2003 Elsevier Science B.V. All rights reserved.","largerWorkTitle":"Global and Planetary Change","language":"English","issn":"09218181","usgsCitation":"Tian, H., Melillo, J.M., Kicklighter, D., Pan, S., Liu, J., McGuire, A., and Moore, B., 2003, Regional carbon dynamics in monsoon Asia and its implications for the global carbon cycle, <i>in</i> Global and Planetary Change, v. 37, no. 3-4, p. 201-217.","startPage":"201","endPage":"217","numberOfPages":"17","costCenters":[],"links":[{"id":235822,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a4b1e4b0e8fec6cdbc09","contributors":{"authors":[{"text":"Tian, H.","contributorId":43524,"corporation":false,"usgs":true,"family":"Tian","given":"H.","affiliations":[],"preferred":false,"id":405109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Melillo, J. M.","contributorId":73139,"corporation":false,"usgs":false,"family":"Melillo","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":405110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kicklighter, D. W.","contributorId":31537,"corporation":false,"usgs":false,"family":"Kicklighter","given":"D. W.","affiliations":[{"id":13627,"text":"Woods Hole Oceanographic Institution, Woods Hole, MA","active":true,"usgs":false}],"preferred":false,"id":405108,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pan, S.","contributorId":11389,"corporation":false,"usgs":true,"family":"Pan","given":"S.","email":"","affiliations":[],"preferred":false,"id":405105,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Liu, J.","contributorId":23672,"corporation":false,"usgs":false,"family":"Liu","given":"J.","affiliations":[],"preferred":false,"id":405107,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McGuire, A. D.","contributorId":16552,"corporation":false,"usgs":true,"family":"McGuire","given":"A. D.","affiliations":[],"preferred":false,"id":405106,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Moore, B. III","contributorId":96845,"corporation":false,"usgs":true,"family":"Moore","given":"B.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":405111,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70025617,"text":"70025617 - 2003 - Depositional environments and processes in Upper Cretaceous nonmarine and marine sediments, Ocean Point dinosaur locality, North Slope, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:20:55","indexId":"70025617","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1344,"text":"Cretaceous Research","active":true,"publicationSubtype":{"id":10}},"title":"Depositional environments and processes in Upper Cretaceous nonmarine and marine sediments, Ocean Point dinosaur locality, North Slope, Alaska","docAbstract":"A 178-m-thick stratigraphic section exposed along the lower Colville River in northern Alaska, near Ocean Point, represents the uppermost part of a 1500 m Upper Cretaceous stratigraphic section. Strata exposed at Ocean Point are assigned to the Prince Creek and Schrader Bluff formations. Three major depositional environments are identified consisting, in ascending order, of floodplain, interdistributary-bay, and shallow-marine shelf. Nonmarine strata, comprising the lower 140 m of this section, consist of fluvial distributaries, overbank sediments, tephra beds, organic-rich beds, and vertebrate remains. Tephras yield isotopic ages between 68 and 72.9 Ma, generally consistent with paleontologic ages of late Campanian-Maastrichtian determined from dinosaur remains, pollen, foraminifers, and ostracodes. Meandering low-energy rivers on a low-gradient, low-relief floodplain carried a suspended-sediment load. The rivers formed multistoried channel deposits (channels to 10 m deep) as well as solitary channel deposits (channels 2-5 m deep). Extensive overbank deposits resulting from episodic flooding formed fining-upward strata on the floodplain. The fining-upward strata are interbedded with tephra and beds of organic-rich sediment. Vertical-accretion deposits containing abundant roots indicate a sheet flood origin for many beds. Vertebrate and nonmarine invertebrate fossils along with plant debris were locally concentrated in the floodplain sediment. Deciduous conifers as well as abundant wetland plants, such as ferns, horsetails, and mosses, covered the coastal plain. Dinosaur skeletal remains have been found concentrated in floodplain sediments in organic-rich bone beds and as isolated bones in fluvial channel deposits in at least nine separate horizons within a 100-m-thick interval. Arenaceous foraminifers in some organic-rich beds and shallow fluvial distributaries indicate a lower coastal plain environment with marginal marine (bay) influence. Marginal marine strata representing interdistributary bay deposits overlie the nonmarine beds and comprise about 15 m of section. Extensive vegetated sand flats, shoals, and shallow channels overlain by shallow bay deposits (less than 7 m deep), containing storm-generated strata characterize the marginal marine beds. Abundant bioturbation and roots characterize the stratigraphic lowest bay deposits; bioturbated sediment, pelecypods, barnacles, and benthic microfossils are found in the overlying bay storm deposits. The sediments abruptly change upward from hummocky cross-stratified bay deposits to a muddy marsh deposit containing shallow organic-rich channels to prograding nonmarine to marginal marine beds. Transgressive, abundantly fossiliferous shallow-marine strata more than 13 m thick comprise the uppermost exposures at Ocean Point. The marine beds overlie nonmarine and bay strata and represent an environment dominated episodically by storms. The age of the marginal marine and marine beds is late Maastrichtian based on pollen. ?? 2003 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cretaceous Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0195-6671(03)00068-5","issn":"01956671","usgsCitation":"Phillips, R., 2003, Depositional environments and processes in Upper Cretaceous nonmarine and marine sediments, Ocean Point dinosaur locality, North Slope, Alaska: Cretaceous Research, v. 24, no. 5, p. 499-523, https://doi.org/10.1016/S0195-6671(03)00068-5.","startPage":"499","endPage":"523","numberOfPages":"25","costCenters":[],"links":[{"id":478584,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://doc.rero.ch/record/14533/files/PAL_E1735.pdf","text":"External Repository"},{"id":209530,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0195-6671(03)00068-5"},{"id":236091,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059febfe4b0c8380cd4eedc","contributors":{"authors":[{"text":"Phillips, R. L.","contributorId":98289,"corporation":false,"usgs":true,"family":"Phillips","given":"R. L.","affiliations":[],"preferred":false,"id":405882,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025138,"text":"70025138 - 2003 - Stratigraphy and palaeoclimatic significance of Late Quaternary loess-palaeosol sequences of the Last Interglacial-Glacial cycle in central Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:20:56","indexId":"70025138","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"Stratigraphy and palaeoclimatic significance of Late Quaternary loess-palaeosol sequences of the Last Interglacial-Glacial cycle in central Alaska","docAbstract":"Loess is one of the most widespread subaerial deposits in Alaska and adjacent Yukon Territory and may have a history that goes back 3 Ma. Based on mineralogy and major and trace element chemistry, central Alaskan loess has a composition that is distinctive from other loess bodies of the world, although it is quartz-dominated. Central Alaskan loess was probably derived from a variety of rock types, including granites, metabasalts and schists. Detailed stratigraphic data and pedologic criteria indicate that, contrary to early studies, many palaeosols are present in central Alaskan loess sections. The buried soils indicate that loess sedimentation was episodic, or at least rates of deposition decreased to the point where pedogenesis could keep ahead of aeolian input. As in China, loess deposition and pedogenesis are likely competing processes and neither stops completely during either phase of the loess/soil formation cycle. Loess deposition in central Alaska took place before, and probably during the last interglacial period, during stadials of the mid-Wisconsin period, during the last glacial period and during the Holocene. An unexpected result of our geochronological studies is that only moderate loess deposition took place during the last glacial period. Our studies lead us to conclude that vegetation plays a key role in loess accumulation in Alaska. Factors favouring loess production are enhanced during glacial periods but factors that favour loess accumulation are diminished during glacial periods. The most important of these is vegetation; boreal forest serves as an effective loess trap, but sparsely distributed herb tundra does not. Thus, thick accumulations of loess should not be expected where tundra vegetation was dominant and this is borne out by modern studies near the treeline in central Alaska. Much of the stratigraphic diversity of North American loess, including that found in the Central Lowlands, the Great Plains, and Alaska is explained by a new model that emphasizes the relative importance of loess production factors versus loess accumulation factors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0277-3791(03)00167-7","issn":"02773791","usgsCitation":"Muhs, D., Ager, T.A., Bettis, E., McGeehin, J., Been, J., Beget, J.E., Pavich, M., Stafford, T.W., and Stevens, D., 2003, Stratigraphy and palaeoclimatic significance of Late Quaternary loess-palaeosol sequences of the Last Interglacial-Glacial cycle in central Alaska: Quaternary Science Reviews, v. 22, no. 18-19, p. 1947-1986, https://doi.org/10.1016/S0277-3791(03)00167-7.","startPage":"1947","endPage":"1986","numberOfPages":"40","costCenters":[],"links":[{"id":209514,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0277-3791(03)00167-7"},{"id":236060,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"18-19","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b99ace4b08c986b31c542","contributors":{"authors":[{"text":"Muhs, D.R. 0000-0001-7449-251X","orcid":"https://orcid.org/0000-0001-7449-251X","contributorId":61460,"corporation":false,"usgs":true,"family":"Muhs","given":"D.R.","affiliations":[],"preferred":false,"id":403968,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ager, T. A.","contributorId":88386,"corporation":false,"usgs":true,"family":"Ager","given":"T.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":403972,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bettis, E. Arthur III","contributorId":72822,"corporation":false,"usgs":true,"family":"Bettis","given":"E. Arthur","suffix":"III","affiliations":[],"preferred":false,"id":403971,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGeehin, J.","contributorId":49554,"corporation":false,"usgs":true,"family":"McGeehin","given":"J.","email":"","affiliations":[],"preferred":false,"id":403967,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Been, J.M.","contributorId":26685,"corporation":false,"usgs":true,"family":"Been","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":403966,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Beget, J. E.","contributorId":63392,"corporation":false,"usgs":true,"family":"Beget","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":403969,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pavich, M.J.","contributorId":70788,"corporation":false,"usgs":true,"family":"Pavich","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":403970,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Stafford, Thomas W. Jr.","contributorId":21283,"corporation":false,"usgs":true,"family":"Stafford","given":"Thomas","suffix":"Jr.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":403964,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stevens, D.A.S.P.","contributorId":21330,"corporation":false,"usgs":true,"family":"Stevens","given":"D.A.S.P.","email":"","affiliations":[],"preferred":false,"id":403965,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70025515,"text":"70025515 - 2003 - The diet of Chesapeake Bay striped bass in the late 1950s","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70025515","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1659,"text":"Fisheries Management and Ecology","active":true,"publicationSubtype":{"id":10}},"title":"The diet of Chesapeake Bay striped bass in the late 1950s","docAbstract":"The diet of Chesapeake Bay striped bass, (Morone saxatilis) Walbaum, based on unpublished stomach content data from 916 fish collected between 1955 and 1959 was described. The diet in the late 1950s, quantified using an index of relative importance (IRI), was dominated by Atlantic menhaden, Brevoortia tyrannus Latrobe. Atlantic menhaden (66%) and bay anchovy, Anchoa mitchilli Valenciennes, (19%) had the highest IRI value overall. Small striped bass ( <600 mm total length) ate predominantly bay anchovy (IRI = 67%). Large striped bass (??? 600 mm total length) ate predominantly Atlantic menhaden (IRI = 93%). Since 1990 small striped bass rely more on invertebrate prey and larger fish now rely more on small pelagic prey, such as bay anchovy and 0-age clupeids. Analysis of historical data using current techniques provided a valuable tool for comparison to help in understanding the current striped bass predator-prey relationship in Chesapeake Bay.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fisheries Management and Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1046/j.1365-2400.2003.00367.x","issn":"0969997X","usgsCitation":"Griffin, J., and Margraf, F., 2003, The diet of Chesapeake Bay striped bass in the late 1950s: Fisheries Management and Ecology, v. 10, no. 5, p. 323-328, https://doi.org/10.1046/j.1365-2400.2003.00367.x.","startPage":"323","endPage":"328","numberOfPages":"6","costCenters":[],"links":[{"id":209564,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1046/j.1365-2400.2003.00367.x"},{"id":236162,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"5","noUsgsAuthors":false,"publicationDate":"2003-11-07","publicationStatus":"PW","scienceBaseUri":"505baaace4b08c986b322916","contributors":{"authors":[{"text":"Griffin, J.C.","contributorId":21744,"corporation":false,"usgs":true,"family":"Griffin","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":405485,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Margraf, F.J.","contributorId":47738,"corporation":false,"usgs":true,"family":"Margraf","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":405486,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1008538,"text":"1008538 - 2003 - Fish faunal resurgence in Lake Nabugabo, East Africa","interactions":[],"lastModifiedDate":"2015-12-16T09:31:57","indexId":"1008538","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1321,"text":"Conservation Biology","active":true,"publicationSubtype":{"id":10}},"title":"Fish faunal resurgence in Lake Nabugabo, East Africa","docAbstract":"<p><span>&nbsp;In Lake Nabugabo, Uganda, a small satellite of the equatorial Lake Victoria, approximately 50% of the indigenous fish species disappeared from the open waters subsequent to establishment of the introduced predatory Nile perch (&nbsp;&nbsp;&nbsp;</span><i>Lates niloticus</i><span>&nbsp;). However, several of these species persisted in wetland refugia. Over the past decade, Nile perch in Lake Nabugabo have been intensively fished. Herein we report a resurgence of some indigenous species in open waters. In a multiyear study, we used annual transects in inshore and offshore waters of exposed (&nbsp;no wetland&nbsp;) and wetland habitats to document the pattern of resurgence. In 1995, haplochromine cichlids were largely confined to inshore areas, particularly wetland ecotones, and were rare in Nile perch stomachs, as were most other indigenous species. By 2000 haplochromine cichlids were abundant in inshore and offshore areas of both exposed and wetland transects. Several indigenous noncichlids also reappeared in the main lake, including three of the four original mormyrid species. Between 1995 and 1999, there was a dramatic increase in the proportion of haplochromines in the diet of Nile perch. When haplochromines were rare (&nbsp;1995&nbsp;), Nile perch switched from an invertebrate-dominated diet to piscivory at a large size (&nbsp;30 cm total length&nbsp;). In 2000, however, Nile perch were strongly piscivorous by 5&ndash;10 cm total length. The pattern of faunal loss and recovery in Lake Nabugabo demonstrates the importance of refugia in providing the seeds of resurgence and provides a model with which to understand some changes in Lake Victoria.</span></p>","language":"English","publisher":"Wiley","doi":"10.1046/j.1523-1739.2003.01519.x","usgsCitation":"Chapman, L., Chapman, C.A., Schofield, P., Olowo, J., Kaufman, L., Seehausen, O., and Ogutu-Ohwayo., R., 2003, Fish faunal resurgence in Lake Nabugabo, East Africa: Conservation Biology, v. 17, no. 2, p. 500-511, https://doi.org/10.1046/j.1523-1739.2003.01519.x.","productDescription":"12 p.","startPage":"500","endPage":"511","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":132556,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"2","noUsgsAuthors":false,"publicationDate":"2003-03-25","publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f07c4","contributors":{"authors":[{"text":"Chapman, L.J.","contributorId":89487,"corporation":false,"usgs":true,"family":"Chapman","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":318044,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chapman, Colin A.","contributorId":90678,"corporation":false,"usgs":true,"family":"Chapman","given":"Colin","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":318045,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schofield, P. J. 0000-0002-8752-2797","orcid":"https://orcid.org/0000-0002-8752-2797","contributorId":80215,"corporation":false,"usgs":true,"family":"Schofield","given":"P. J.","affiliations":[],"preferred":false,"id":318043,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Olowo, J.P.","contributorId":77888,"corporation":false,"usgs":true,"family":"Olowo","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":318042,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kaufman, L.S.","contributorId":73548,"corporation":false,"usgs":true,"family":"Kaufman","given":"L.S.","email":"","affiliations":[],"preferred":false,"id":318041,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Seehausen, O.","contributorId":99513,"corporation":false,"usgs":true,"family":"Seehausen","given":"O.","email":"","affiliations":[],"preferred":false,"id":318046,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ogutu-Ohwayo., R.","contributorId":53341,"corporation":false,"usgs":true,"family":"Ogutu-Ohwayo.","given":"R.","email":"","affiliations":[],"preferred":false,"id":318040,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":1008539,"text":"1008539 - 2003 - Etude sur la Tortue-boite de Floride (Terrapene carolina bauri) a Egmont Key, Floride","interactions":[],"lastModifiedDate":"2012-02-02T00:04:38","indexId":"1008539","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2658,"text":"Manouria","active":true,"publicationSubtype":{"id":10}},"title":"Etude sur la Tortue-boite de Floride (Terrapene carolina bauri) a Egmont Key, Floride","docAbstract":"Abstract not supplied at this time","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Manouria","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"French","usgsCitation":"Dodd, C., 2003, Etude sur la Tortue-boite de Floride (Terrapene carolina bauri) a Egmont Key, Floride: Manouria, v. 20, p. 26-34.","productDescription":"p. 26-34","startPage":"26","endPage":"34","numberOfPages":"9","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":132654,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a52e4b07f02db62a8aa","contributors":{"authors":[{"text":"Dodd, C.K. Jr.","contributorId":86286,"corporation":false,"usgs":true,"family":"Dodd","given":"C.K.","suffix":"Jr.","affiliations":[],"preferred":false,"id":318047,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025556,"text":"70025556 - 2003 - Special Issue: INTERRAD IX - International Association of Radiolarian Paleontologists: Preface","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70025556","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Special Issue: INTERRAD IX - International Association of Radiolarian Paleontologists: Preface","docAbstract":"[No abstract available]","largerWorkTitle":"Marine Micropaleontology","language":"English","doi":"10.1016/S0377-8398(03)00052-5","issn":"03778398","usgsCitation":"Blome, C., and Sanfilippo, A., 2003, Special Issue: INTERRAD IX - International Association of Radiolarian Paleontologists: Preface, <i>in</i> Marine Micropaleontology, v. 49, no. 3, p. 185-186, https://doi.org/10.1016/S0377-8398(03)00052-5.","startPage":"185","endPage":"186","numberOfPages":"2","costCenters":[],"links":[{"id":209579,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0377-8398(03)00052-5"},{"id":236201,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b94dce4b08c986b31ac8e","contributors":{"authors":[{"text":"Blome, C.D.","contributorId":60647,"corporation":false,"usgs":true,"family":"Blome","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":405630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sanfilippo, A.","contributorId":79631,"corporation":false,"usgs":true,"family":"Sanfilippo","given":"A.","email":"","affiliations":[],"preferred":false,"id":405631,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1008540,"text":"1008540 - 2003 - Natural history notes: Terrapene carolina bauri (Florida Box Turtle). Rehydration","interactions":[],"lastModifiedDate":"2012-02-02T00:04:38","indexId":"1008540","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1898,"text":"Herpetological Review","active":true,"publicationSubtype":{"id":10}},"title":"Natural history notes: Terrapene carolina bauri (Florida Box Turtle). Rehydration","docAbstract":"Abstract not supplied at this time","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Herpetological Review","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Dodd, C., and Griffey, M.L., 2003, Natural history notes: Terrapene carolina bauri (Florida Box Turtle). Rehydration: Herpetological Review, v. 34, p. 58-59.","productDescription":"p. 58-59","startPage":"58","endPage":"59","numberOfPages":"2","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":132655,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db698150","contributors":{"authors":[{"text":"Dodd, C.K. Jr.","contributorId":86286,"corporation":false,"usgs":true,"family":"Dodd","given":"C.K.","suffix":"Jr.","affiliations":[],"preferred":false,"id":318049,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Griffey, Marian L.","contributorId":81047,"corporation":false,"usgs":true,"family":"Griffey","given":"Marian","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":318048,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025598,"text":"70025598 - 2003 - Estimation of hectare-scale soil-moisture characteristics from aquifer-test data","interactions":[],"lastModifiedDate":"2018-11-16T07:37:44","indexId":"70025598","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of hectare-scale soil-moisture characteristics from aquifer-test data","docAbstract":"<div id=\"abstracts\" class=\"Abstracts\"><div id=\"aep-abstract-id9\" class=\"abstract author\"><div id=\"aep-abstract-sec-id10\"><p><span>Analysis of a 72-h, constant-rate&nbsp;aquifer&nbsp;test conducted in a coarse-grained and highly permeable, glacial outwash deposit on Cape Cod, Massachusetts revealed that drawdowns measured in 20&nbsp;piezometers&nbsp;located at various depths below the&nbsp;water table&nbsp;and distances from the pumped well were significantly influenced by effects of drainage from the&nbsp;</span>vadose zone<span>. The influence was greatest in piezometers located close to the water table and diminished with increasing depth. The influence of the vadose zone was evident from a gap, in the intermediate-time zone, between measured drawdowns and drawdowns computed under the assumption that drainage from the vadose zone occurred instantaneously in response to a decline in the elevation of the water table. By means of an analytical model that was designed to account for time-varying drainage, simulated drawdowns could be closely fitted to measured drawdowns regardless of the piezometer locations. Because of the exceptional quality and quantity of the data and the relatively small aquifer heterogeneity, it was possible by inverse modeling to estimate all relevant aquifer parameters and a set of three empirical constants used in the upper-boundary condition to account for the dynamic drainage process. The empirical constants were used to define a one-dimensional (1D) drainage versus time curve that is assumed to be representative of the bulk material overlying the water table. The curve was inverted with a&nbsp;parameter estimation&nbsp;algorithm and a 1D numerical model for variably saturated flow to obtain soil-moisture retention curves and unsaturated&nbsp;hydraulic conductivity&nbsp;relationships defined by the Brooks and Corey equations. Direct analysis of the aquifer-test data using a parameter estimation algorithm and a two-dimensional, axisymmetric numerical model for variably saturated flow yielded similar soil-moisture characteristics. Results suggest that hectare-scale soil-moisture characteristics are different from core-scale predictions and even relatively small amounts of fine-grained material and heterogeneity can dominate the large-scale soil-moisture characteristics and aquifer response.</span></p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/S0022-1694(03)00202-6","issn":"00221694","usgsCitation":"Moench, A., 2003, Estimation of hectare-scale soil-moisture characteristics from aquifer-test data: Journal of Hydrology, v. 281, no. 1-2, p. 82-95, https://doi.org/10.1016/S0022-1694(03)00202-6.","productDescription":"14 p.","startPage":"82","endPage":"95","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":209398,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0022-1694(03)00202-6"},{"id":235796,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"281","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b90e4b0c8380cd5279b","contributors":{"authors":[{"text":"Moench, A.F.","contributorId":91495,"corporation":false,"usgs":true,"family":"Moench","given":"A.F.","email":"","affiliations":[],"preferred":false,"id":405802,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025597,"text":"70025597 - 2003 - A multiscaled model of southwestern willow flycatcher breeding habitat","interactions":[],"lastModifiedDate":"2021-08-21T18:50:32.550223","indexId":"70025597","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"A multiscaled model of southwestern willow flycatcher breeding habitat","docAbstract":"<p>The southwestern willow flycatcher (SWFL; Empidonax traillii extimus) is an endangered songbird whose habitat has declined dramatically over the last century. Understanding habitat selection patterns and the ability to identify potential breeding areas for the SWFL is crucial to the management and conservation of this species. We developed a multiscaled model of SWTL breeding habitat with a Geographic Information System (GIS), survey data, GIS variables, and multiple logistic regressions. We obtained presence and absence survey data from a riverine ecosystem and a reservoir delta in south-central Arizona, USA, in 1999. We extracted the GIS variables from satellite imagery and digital elevation models to characterize vegetation and floodplain within the project area. We used multiple logistic regressions within a cell-based (30 X 30 m) modeling environment to (1) determine associations between GIS variables and breeding-site occurrence at different spatial scales (0.09-72 ha), and (2) construct a predictive model. Our best model explained 54% of the variability in breeding-site occurrence with the following variables: vegetation density at the site (0.09 ha), proportion of dense vegetation and variability in vegetation density within a 4.5-ha neighborhood, and amount of floodplain or flat terrain within a 41-ha neighborhood. The density of breeding sites was highest in areas that the model predicted to be most suitable within the project area and at an external test site 200 km away. Conservation efforts must focus on protecting not only occupied patches, but also surrounding riparian forests and floodplain to ensure long-term viability of SWTL. We will use the multiscaled model to map SWTL breeding habitat in Arizona, prioritize future survey effort, and examine changes in habitat abundance and quality over time.</p>","language":"English","publisher":"Wildlife Society","doi":"10.2307/3802685","issn":"0022541X","usgsCitation":"Hatten, J., and Paradzick, C., 2003, A multiscaled model of southwestern willow flycatcher breeding habitat: Journal of Wildlife Management, v. 67, no. 4, p. 774-788, https://doi.org/10.2307/3802685.","productDescription":"15 p.","startPage":"774","endPage":"788","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":388300,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"south-central Arizona","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -113.37890625,\n              31.466153715024294\n            ],\n            [\n              -109.951171875,\n              31.466153715024294\n            ],\n            [\n              -109.951171875,\n              34.56085936708384\n            ],\n            [\n              -113.37890625,\n              34.56085936708384\n            ],\n            [\n              -113.37890625,\n              31.466153715024294\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"67","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e490e4b0c8380cd4671b","contributors":{"authors":[{"text":"Hatten, J.R.","contributorId":39564,"corporation":false,"usgs":true,"family":"Hatten","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":405800,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paradzick, C.E.","contributorId":87345,"corporation":false,"usgs":true,"family":"Paradzick","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":405801,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025458,"text":"70025458 - 2003 - Data-based comparisons of moments estimators using historical and paleoflood data","interactions":[],"lastModifiedDate":"2012-03-12T17:20:30","indexId":"70025458","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Data-based comparisons of moments estimators using historical and paleoflood data","docAbstract":"This paper presents the first systematic comparison, using historical and paleoflood data, of moments-based flood frequency methods. Peak flow estimates were compiled from streamflow-gaging stations with historical and/or paleoflood data at 36 sites located in the United States, Argentina, United Kingdom and China, covering a diverse range of hydrologic conditions. The Expected Moments Algorithm (EMA) and the Bulletin 17B historical weighting procedure (B17H) were compared in terms of goodness of fit using 25 of the data sets. Results from this comparison indicate that EMA is a viable alternative to current B17H procedures from an operational perspective, and performed equal to or better than B17H for the data analyzed. We demonstrate satisfactory EMA performance for the remaining 11 sites with multiple thresholds and binomial censoring, which B17H cannot accommodate. It is shown that the EMA estimator readily incorporates these types of information and the LP-III distribution provided an adequate fit to the data in most cases. The results shown here are consistent with Monte Carlo simulation studies, and demonstrate that EMA is preferred overall to B17H. The Bulletin 17B document could be revised to include an option for EMA as an alternative to the existing historical weighting approach. These results are of practical relevance to hydrologists and water resources managers for applications in floodplain management, design of hydraulic structures, and risk analysis for dams. ?? 2003 Elsevier Science B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0022-1694(03)00141-0","issn":"00221694","usgsCitation":"England, J., Jarrett, R., and Salas, J., 2003, Data-based comparisons of moments estimators using historical and paleoflood data: Journal of Hydrology, v. 278, no. 1-4, p. 172-196, https://doi.org/10.1016/S0022-1694(03)00141-0.","startPage":"172","endPage":"196","numberOfPages":"25","costCenters":[],"links":[{"id":209409,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0022-1694(03)00141-0"},{"id":235823,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"278","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fdcfe4b0c8380cd4e95a","contributors":{"authors":[{"text":"England, J.F. Jr.","contributorId":42405,"corporation":false,"usgs":true,"family":"England","given":"J.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":405272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jarrett, R.D.","contributorId":36551,"corporation":false,"usgs":true,"family":"Jarrett","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":405271,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Salas, J.D.","contributorId":84962,"corporation":false,"usgs":true,"family":"Salas","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":405273,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1008558,"text":"1008558 - 2003 - A genetic survey of Salvinia minima in the southern United States","interactions":[],"lastModifiedDate":"2023-02-28T17:33:21.329966","indexId":"1008558","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":861,"text":"Aquatic Botany","active":true,"publicationSubtype":{"id":10}},"displayTitle":"A genetic survey of <i>Salvinia minima</i> in the southern United States","title":"A genetic survey of Salvinia minima in the southern United States","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0304-3770(03)00036-6","usgsCitation":"Madeira, P.T., Jacono, C.C., Tipping, P., Van, T.K., and Center, T., 2003, A genetic survey of Salvinia minima in the southern United States: Aquatic Botany, v. 76, no. 2, p. 127-139, https://doi.org/10.1016/S0304-3770(03)00036-6.","productDescription":"13 p.","startPage":"127","endPage":"139","numberOfPages":"13","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":132179,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, Texas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -79.7,\n              32.5\n            ],\n            [\n              -95.7,\n              32.5\n            ],\n            [\n              -95.7,\n              25\n            ],\n            [\n              -79.7,\n              25\n            ],\n            [\n              -79.7,\n              32.5\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"76","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aead9","contributors":{"authors":[{"text":"Madeira, Paul T.","contributorId":39743,"corporation":false,"usgs":true,"family":"Madeira","given":"Paul","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":318090,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jacono, Colette C.","contributorId":99092,"corporation":false,"usgs":true,"family":"Jacono","given":"Colette","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":318089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tipping, Phil","contributorId":73965,"corporation":false,"usgs":true,"family":"Tipping","given":"Phil","email":"","affiliations":[],"preferred":false,"id":318091,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van, Thai K.","contributorId":83483,"corporation":false,"usgs":true,"family":"Van","given":"Thai","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":318092,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Center, Ted D.","contributorId":94263,"corporation":false,"usgs":true,"family":"Center","given":"Ted D.","affiliations":[],"preferred":false,"id":318093,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025459,"text":"70025459 - 2003 - A numerical simulation of magma motion, crustal deformation, and seismic radiation associated with volcanic eruptions","interactions":[],"lastModifiedDate":"2012-03-12T17:20:30","indexId":"70025459","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"A numerical simulation of magma motion, crustal deformation, and seismic radiation associated with volcanic eruptions","docAbstract":"The finite difference method is used to calculate the magma dynamics, seismic radiation, and crustal deformation associated with a volcanic eruption. The model geometry consists of a cylindrical reservoir and narrow cylindrical conduit embedded in a homogeneous crust. We consider two models of eruption. In the first model, a lid caps the vent and the magma is overpressurized prior to the eruption. The eruption is triggered by the instantaneous removal of the lid, at which point the exit pressure becomes equal to the atmospheric pressure. In the second model, a plug at the reservoir outlet allows pressurization of only the magmatic fluid in the reservoir before the eruption. Magma transfer between the reservoir and conduit is triggered by the instantaneous removal of the plug, and the eruption occurs when the pressure at the conduit orifice exceeds the material strength of the lid capping the vent. In both models, magma dynamics are expressed by the equations of mass and momentum conservation in a compressible fluid, in which fluid expansion associated with depressurization is accounted for by a constitutive law relating pressure and density. Crustal motions are calculated from the equations of elastodynamics. The fluid and solid are dynamically coupled by applying the continuity of wall velocities and normal stresses across the conduit and reservoir boundaries. Free slip is allowed at the fluid-solid boundary. Both models predict the gradual depletion of the magma reservoir, which causes crustal deformation observed as a long-duration dilatational signal. Superimposed on this very-long-period (VLP) signal generated by mass transport are long-period (LP) oscillations of the magma reservoir and conduit excited by the acoustic resonance of the reservoir-conduit system during the eruption. The volume of the reservoir, vent size, and magma properties control the duration of VLP waves and dominant periods of LP oscillations. The second model predicts that when the magmatic fluid reaches the vent, a high-pressure pulse occurs at this location in accordance with the basic theory of compressible fluid dynamics. This abrupt pressure increase just beneath the vent is consistent with observed seismograms in which pulse-like Rayleigh waves excited by a shallow source are dominant. The strength of the lid plays an important role in the character of the seismograms and in defining the type of eruption observed.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1046/j.1365-246X.2003.01936.x","issn":"0956540X","usgsCitation":"Nishimura, T., and Chouet, B., 2003, A numerical simulation of magma motion, crustal deformation, and seismic radiation associated with volcanic eruptions: Geophysical Journal International, v. 153, no. 3, p. 699-718, https://doi.org/10.1046/j.1365-246X.2003.01936.x.","startPage":"699","endPage":"718","numberOfPages":"20","costCenters":[],"links":[{"id":478580,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1046/j.1365-246x.2003.01936.x","text":"Publisher Index Page"},{"id":209410,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1046/j.1365-246X.2003.01936.x"},{"id":235824,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"153","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4cae4b0c8380cd46927","contributors":{"authors":[{"text":"Nishimura, T.","contributorId":94834,"corporation":false,"usgs":true,"family":"Nishimura","given":"T.","email":"","affiliations":[],"preferred":false,"id":405275,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chouet, B.","contributorId":68465,"corporation":false,"usgs":true,"family":"Chouet","given":"B.","affiliations":[],"preferred":false,"id":405274,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1008571,"text":"1008571 - 2003 - Salinity tolerance of two gobies (Microgobius gulosus, Gobiosoma robustum) in Florida Bay (USA)","interactions":[],"lastModifiedDate":"2022-06-06T16:38:38.618845","indexId":"1008571","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1873,"text":"Gulf of Mexico Science","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Salinity tolerance of two gobies (<i>Microgobius gulosus, Gobiosoma robustum</i>) in Florida Bay (USA)","title":"Salinity tolerance of two gobies (Microgobius gulosus, Gobiosoma robustum) in Florida Bay (USA)","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"University of Southern Mississippi","doi":"10.18785/goms.2101.08","usgsCitation":"Schofield, P., 2003, Salinity tolerance of two gobies (Microgobius gulosus, Gobiosoma robustum) in Florida Bay (USA): Gulf of Mexico Science, v. 21, no. 1, p. 86-91, https://doi.org/10.18785/goms.2101.08.","productDescription":"6 p.","startPage":"86","endPage":"91","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":486970,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.18785/goms.2101.08","text":"Publisher Index Page"},{"id":132372,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -81.08871459960938,\n              25.130365915065003\n            ],\n            [\n              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J. 0000-0002-8752-2797","orcid":"https://orcid.org/0000-0002-8752-2797","contributorId":80215,"corporation":false,"usgs":true,"family":"Schofield","given":"P. J.","affiliations":[],"preferred":false,"id":318117,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025314,"text":"70025314 - 2003 - Effects of structural marsh management and salinity on invertebrate prey of waterbirds in marsh ponds during winter on the Gulf Coast Chenier Plain","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70025314","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Effects of structural marsh management and salinity on invertebrate prey of waterbirds in marsh ponds during winter on the Gulf Coast Chenier Plain","docAbstract":"Aquatic invertebrates are important food resources for wintering waterbirds, and prey selection generally is limited by prey size. Aquatic invertebrate communities are influenced by sediments and hydrologic characteristics of wetlands, which were affected by structural marsh management (levees, water-control structures and impoundments; SMM) and salinity on the Gulf Coast Chenier Plain of North America. Based on previous research, we tested general predictions that SMM reduces biomass of infaunal invertebrates and increases that of epifaunal invertebrates and those that tolerate low levels of dissolved oxygen (O2) and salinity. We also tested the general prediction that invertebrate biomass in freshwater, oligohaline, and mesohaline marshes are similar, except for taxa adapted to specific ranges of salinity. Finally, we investigated relationships among invertebrate biomass and sizes, sediment and hydrologic variables, and marsh types. Accordingly, we measured biomass of common invertebrate by three size classes (63 to 199 ??m, 200 to 999 ??m, and ???1000 ??m), sediment variables (carbon content, C:N ratio, hardness, particle size, and O, penetration), and hydrologic variables (salinity, water depth,temperature, 02, and turbidity) in ponds of impounded freshwater (IF), oligohaline (IO), mesohaline (IM), and unimpounded mesohaline (UM) marshes during winters 1997-1998 to 1999-2000 on Rockefeller State Wildlife Refuge, near Grand Chenier, Louisiana, USA. As predicted, an a priori multivariate analysis of variance (MANOVA) contrast indicated that biomass of an infaunal class of invertebrates (Nematoda, 63 to 199 ??m) was greater in UM marsh ponds than in those of IM marshes, and biomass of an epifaunal class of invertebrates (Ostracoda, 200 to 999 ??m) was greater in IM marsh ponds than in those of UM marshes. The observed reduction in Nematoda due to SMM also was consistent with the prediction that SMM reduces invertebrates that do not tolerate low salinity. Furthermore, as predicted, an a priori MANOVA contrast indicated that biomass of a single invertebrate class adapted to low salinity (Oligochaeta, 200 to 999 ??m) was greater in ponds of IF marshes than in those of IO and IM marshes. A canonical correspondence analysis indicated that variation in salinity and O2 penetration best explained differences among sites that maximized biomass of the common invertebrate classes. Salinity was positively correlated with the silt-clay fraction, O2, and O2 penetration, and negatively correlated with water depth, sediment hardness, carbon, and C:N. Nematoda, Foraminifera, and Copepoda generally were associated with UM marsh ponds and high salinity, whereas other invertebrate classes were distributed among impounded marsh ponds and associated with lower salinity. Our results suggest that SMM and salinity have relatively small effects on invertebrate prey of wintering waterbirds in marsh ponds because they affect biomass of Nematoda and Oligochaeta, and few waterbirds consume these invertebrates. ?? 2003, The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"02775212","usgsCitation":"Bolduc, F., and Afton, A., 2003, Effects of structural marsh management and salinity on invertebrate prey of waterbirds in marsh ponds during winter on the Gulf Coast Chenier Plain: Wetlands, v. 23, no. 4, p. 897-910.","startPage":"897","endPage":"910","numberOfPages":"14","costCenters":[],"links":[{"id":235998,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a07e4e4b0c8380cd518a8","contributors":{"authors":[{"text":"Bolduc, F.","contributorId":76444,"corporation":false,"usgs":true,"family":"Bolduc","given":"F.","email":"","affiliations":[],"preferred":false,"id":404726,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Afton, A. D.","contributorId":83467,"corporation":false,"usgs":true,"family":"Afton","given":"A. D.","affiliations":[],"preferred":false,"id":404727,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1008575,"text":"1008575 - 2003 - Using ground-placed PVC pipes to monitor hylid treefrogs: Capture biases","interactions":[],"lastModifiedDate":"2021-08-23T12:06:26.850894","indexId":"1008575","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3444,"text":"Southeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Using ground-placed PVC pipes to monitor hylid treefrogs: Capture biases","docAbstract":"<p><span>We sampled a population of two species of hylid treefrogs using 90 vertical ground-placed PVC pipes of 3 diameters positioned along a 1500-m transect at a forest-open pond ecotone in north-central Florida in order to identify potential capture biases. We recorded 1,981 treefrog observations (778 unmarked, 1,203 recaptures) in 8 months. Our results identified species-specific seasonal and weather-related variation in capture by pipe diameter and pipe location. These biases may limit the usefulness of this sampling technique when monitoring long-term treefrog population status and trends.</span></p>","language":"English","publisher":"BioOne","doi":"10.1656/1528-7092(2003)002[0575:UGPPTM]2.0.CO;2","usgsCitation":"Zacharow, M., Barichivich, W., and Dodd, C., 2003, Using ground-placed PVC pipes to monitor hylid treefrogs: Capture biases: Southeastern Naturalist, v. 2, no. 4, p. 575-590, https://doi.org/10.1656/1528-7092(2003)002[0575:UGPPTM]2.0.CO;2.","productDescription":"16 p.","startPage":"575","endPage":"590","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":388336,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a16e4b07f02db603c37","contributors":{"authors":[{"text":"Zacharow, M.","contributorId":53746,"corporation":false,"usgs":true,"family":"Zacharow","given":"M.","email":"","affiliations":[],"preferred":false,"id":318130,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barichivich, W.J. 0000-0003-1103-6861","orcid":"https://orcid.org/0000-0003-1103-6861","contributorId":91435,"corporation":false,"usgs":true,"family":"Barichivich","given":"W.J.","affiliations":[],"preferred":false,"id":318132,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dodd, C.K. Jr.","contributorId":86286,"corporation":false,"usgs":true,"family":"Dodd","given":"C.K.","suffix":"Jr.","affiliations":[],"preferred":false,"id":318131,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025351,"text":"70025351 - 2003 - Inverse modeling of BTEX dissolution and biodegradation at the Bemidji, MN crude-oil spill site","interactions":[],"lastModifiedDate":"2018-11-16T10:28:36","indexId":"70025351","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2233,"text":"Journal of Contaminant Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Inverse modeling of BTEX dissolution and biodegradation at the Bemidji, MN crude-oil spill site","docAbstract":"<div id=\"abstracts\" class=\"Abstracts\"><div id=\"aep-abstract-id20\" class=\"abstract author\"><div id=\"aep-abstract-sec-id21\"><p><span>The U.S.&nbsp;Geological Survey&nbsp;(USGS)&nbsp;solute transport&nbsp;and&nbsp;biodegradation&nbsp;code BIOMOC was used in conjunction with the USGS universal inverse modeling code UCODE to quantify&nbsp;field-scale&nbsp;hydrocarbon&nbsp;dissolution and biodegradation at the USGS Toxic Substances&nbsp;Hydrology&nbsp;Program&nbsp;crude-oil&nbsp;spill research site located near Bemidji, MN. This inverse modeling effort used the extensive historical data compiled at the Bemidji site from 1986 to 1997 and incorporated a multicomponent transport and biodegradation model. Inverse modeling was successful when coupled transport and degradation processes were incorporated into the model and a single dissolution rate coefficient was used for all BTEX components. Assuming a stationary&nbsp;oil body, we simulated&nbsp;benzene,&nbsp;toluene, ethylbenzene,&nbsp;</span><i>m</i>,<i>p</i>-xylene, and<span>&nbsp;</span><i>o</i><span>-xylene (BTEX) concentrations in the oil and ground water, respectively, as well as&nbsp;dissolved oxygen. Dissolution from the oil phase and aerobic and anaerobic degradation processes were represented. The parameters estimated were the recharge rate,&nbsp;hydraulic conductivity, dissolution rate coefficient, individual first-order BTEX anaerobic degradation rates, and transverse&nbsp;dispersivity. Results were similar for simulations obtained using several alternative conceptual models of the hydrologic system and biodegradation processes. The dissolved BTEX concentration data were not sufficient to discriminate between these conceptual models. The calibrated simulations reproduced the general large-scale evolution of the plume, but did not reproduce the observed small-scale spatial and&nbsp;temporal variability&nbsp;in concentrations. The estimated anaerobic biodegradation rates for toluene and&nbsp;</span><i>o</i>-xylene were greater than the dissolution rate coefficient. However, the estimated anaerobic biodegradation rates for benzene, ethylbenzene, and<span>&nbsp;</span><i>m</i>,<i>p</i>-xylene were less than the dissolution rate coefficient. The calibrated model was used to determine the BTEX mass balance in the oil body and groundwater plume. Dissolution from the oil body was greatest for compounds with large effective solubilities (benzene) and with large degradation rates (toluene and<span>&nbsp;</span><i>o</i>-xylene). Anaerobic degradation removed 77% of the BTEX that dissolved into the water phase and aerobic degradation removed 17%. Although goodness-of-fit measures for the alternative conceptual models were not significantly different, predictions made with the models were quite variable.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/S0169-7722(03)00034-2","issn":"01697722","usgsCitation":"Essaid, H., Cozzarelli, I., Eganhouse, R., Herkelrath, W., Bekins, B., and Delin, G., 2003, Inverse modeling of BTEX dissolution and biodegradation at the Bemidji, MN crude-oil spill site: Journal of Contaminant Hydrology, v. 67, no. 1-4, p. 269-299, https://doi.org/10.1016/S0169-7722(03)00034-2.","productDescription":"31 p.","startPage":"269","endPage":"299","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":235999,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209491,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0169-7722(03)00034-2"}],"country":"United States","state":"Minnesota","otherGeospatial":"Bemidji","volume":"67","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3e4de4b0c8380cd63c73","contributors":{"authors":[{"text":"Essaid, H.I.","contributorId":22342,"corporation":false,"usgs":true,"family":"Essaid","given":"H.I.","email":"","affiliations":[],"preferred":false,"id":404855,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cozzarelli, I.M. 0000-0002-5123-1007","orcid":"https://orcid.org/0000-0002-5123-1007","contributorId":22343,"corporation":false,"usgs":true,"family":"Cozzarelli","given":"I.M.","affiliations":[],"preferred":false,"id":404856,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eganhouse, R.P.","contributorId":67555,"corporation":false,"usgs":true,"family":"Eganhouse","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":404857,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Herkelrath, W.N.","contributorId":77981,"corporation":false,"usgs":true,"family":"Herkelrath","given":"W.N.","affiliations":[],"preferred":false,"id":404858,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bekins, B.A.","contributorId":98309,"corporation":false,"usgs":true,"family":"Bekins","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":404859,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Delin, G. N.","contributorId":12834,"corporation":false,"usgs":true,"family":"Delin","given":"G. N.","affiliations":[],"preferred":false,"id":404854,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70025847,"text":"70025847 - 2003 - The sedimentary record of climatic and anthropogenic influence on the Patuxent estuary and Chesapeake Bay ecosystems","interactions":[],"lastModifiedDate":"2012-03-12T17:20:32","indexId":"70025847","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"The sedimentary record of climatic and anthropogenic influence on the Patuxent estuary and Chesapeake Bay ecosystems","docAbstract":"Ecological and paleoecological studies from the Patuxent River mouth reveal dynamic variations in benthic ostracode assemblages over the past 600 years due to climatic and anthropogenic factors. Prior to the late 20th century, centennial-scale changes in species dominance were influenced by climatic and hydrological factors that primarily affected salinity and at times led to oxygen depletion. Decadal-scale droughts also occurred resulting in higher salinities and migration of ostracode species from the deep channel (Loxoconcha sp., Cytheromorpha newportensis) into shallower water along the flanks of the bay. During the 19th century the abundance of Leptocythere nikraveshae and Perissocytheridea brachyforma suggest increased turbidity and decreased salinity. Unprecedented changes in benthic ostracodes at the Patuxent mouth and in the deep channel of the bay occurred after the 1960s when Cytheromorpha curta became the dominant species, reflecting seasonal anoxia. The change in benthic assemblages coincided with the appearance of deformities in foraminifers. A combination of increased nitrate loading due to greater fertilizer use and increased freshwater flow explains this shift. A review of the geochemical and paleoecological evidence for dissolved oxygen indicates that seasonal oxygen depletion in the main channel of Chesapeake Bay varies over centennial and decadal timescales. Prior to 1700 AD, a relatively wet climate and high freshwater runoff led to oxygen depletion but rarely anoxia. Between 1700 and 1900, progressive eutrophication occurred related to land dearance and increased sedimentation, but this was superimposed on the oscillatory pattern of oxygen depletion most likely driven by climatological and hydrological factors. It also seems probable that the four- to five-fold increase in sedimentation due to agricultural and timber activity could have contributed to an increased natural nutrient load, likely fueling the early periods (1700-1900) of hypoxla prior to widespread fertilizer use. Twentieth-century anoxia worsened in the late 1930s-1940s and again around 1970, reaching unprecedented levels in the past few decades. Decadal and interannual variability in oxygen depletion even in the 20th century is still strongly influenced by climatic processes influencing precipitation and freshwater runoff.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Estuaries","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01608347","usgsCitation":"Cronin, T.M., and Vann, C., 2003, The sedimentary record of climatic and anthropogenic influence on the Patuxent estuary and Chesapeake Bay ecosystems: Estuaries, v. 26, no. 2 A, p. 196-209.","startPage":"196","endPage":"209","numberOfPages":"14","costCenters":[],"links":[{"id":235011,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"2 A","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb005e4b08c986b324b8c","contributors":{"authors":[{"text":"Cronin, T. M. 0000-0002-2643-0979","orcid":"https://orcid.org/0000-0002-2643-0979","contributorId":42613,"corporation":false,"usgs":true,"family":"Cronin","given":"T.","email":"","middleInitial":"M.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":false,"id":406807,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vann, C.D.","contributorId":51951,"corporation":false,"usgs":true,"family":"Vann","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":406808,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}