The occurrence and sources of Escherichia coli (E. coli), one of several fecal indicator bacteria, in metropolitan St. Louis streams known to receive nonpoint source runoff, occasional discharges from combined and sanitary sewers, and treated wastewater effluent were investigated from October 2004 through September 2007. Three Missouri River sites, five Mississippi River sites, and six small basin tributary stream sites were sampled during base flow and storm events for the presence of E. coli and their sources. E. coli host-source determinations were conducted using local library based genotypic methods. Human fecal contamination in stream samples was additionally confirmed by the presence of Bacteroides thetaiotaomicron, an anaerobic, enteric bacterium with a high occurrence in, and specificity to, humans.
Missouri River E. coli densities and loads during base flow were approximately 10 times greater than those in the Mississippi River above its confluence with the Missouri River. Although substantial amounts of E. coli originated from within the study area during base flow and storm events, considerable amounts of E. coli in the Missouri River, as well as in the middle Mississippi River sections downstream from its confluence with the Missouri River, originated in Missouri River reaches upstream from the study area. In lower Mississippi River reaches, bacteria contributions from the numerous combined and sanitary sewer overflows within the study area, as well as contributions from nonpoint source runoff, greatly increased instream E. coli densities.
Although other urban factors cannot be discounted, average E. coli densities in streams were strongly correlated with the number of upstream combined and sanitary sewer overflow points, and the percentage of upstream impervious cover. Small basin sites with the greatest number of combined and sanitary sewer overflows (Maline Creek and the River des Peres) had larger E. coli densities, larger loads, and a greater percentage of E. coli attributable to humans than other small basin sites; however, even though small basin E. coli densities typically were much larger than in large river receiving streams, small basins contributed, on average, only a small part (a maximum of 16 percent) of the total E. coli load to larger rivers.
On average, approximately one-third of E. coli in metropolitan St. Louis streams was identified as originating from humans. Another one-third of the E. coli was determined to have originated from unidentified sources; dogs and geese contributed lesser amounts, 10 and 20 percent, of the total instream bacteria. Sources of E. coli were largely independent of hydrologic conditions—an indication that sources remained relatively consistent with time.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20105150","collaboration":"Prepared in cooperation with the Metropolitan St. Louis Sewer District","usgsCitation":"Wilkison, D.H., and Davis, J., 2010, Occurrence and sources of Escherichia coli in metropolitan St. Louis streams, October 2004 through September 2007: U.S. Geological Survey Scientific Investigations Report 2010-5150, v, 51 p., https://doi.org/10.3133/sir20105150.","productDescription":"v, 51 p.","additionalOnlineFiles":"N","temporalStart":"2004-10-01","temporalEnd":"2007-09-30","costCenters":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"links":[{"id":14190,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2010/5150/","linkFileType":{"id":5,"text":"html"}},{"id":126093,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir_2010_5150.jpg"},{"id":424290,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_94341.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Missouri","city":"St Louis","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.7,\n 38.4166\n ],\n [\n -90.7,\n 39\n ],\n [\n -90,\n 39\n ],\n [\n -90,\n 38.4166\n ],\n [\n -90.7,\n 38.4166\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd48ffe4b0b290850eeca8","contributors":{"authors":[{"text":"Wilkison, Donald H. wilkison@usgs.gov","contributorId":3824,"corporation":false,"usgs":true,"family":"Wilkison","given":"Donald","email":"wilkison@usgs.gov","middleInitial":"H.","affiliations":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"preferred":true,"id":306453,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, Jerri V. jdavis@usgs.gov","contributorId":2667,"corporation":false,"usgs":true,"family":"Davis","given":"Jerri V.","email":"jdavis@usgs.gov","affiliations":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"preferred":false,"id":306452,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":98776,"text":"sir20105188 - 2010 - Characterization of water quality and biological communities, Fish Creek, Teton County, Wyoming, 2007-08","interactions":[],"lastModifiedDate":"2012-03-08T17:16:32","indexId":"sir20105188","displayToPublicDate":"2010-10-02T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2010-5188","title":"Characterization of water quality and biological communities, Fish Creek, Teton County, Wyoming, 2007-08","docAbstract":"Fish Creek, a tributary to the Snake River, is about 25 river kilometers long and is located in Teton County in western Wyoming near the town of Wilson. Public concern about nuisance growths of aquatic plants in Fish Creek have been increasing in recent years. To address this concern, the U.S. Geological Survey conducted a study in cooperation with the Teton Conservation District to characterize the water quality and biological communities in Fish Creek. Water-quality samples were collected for analyses of physical properties and water chemistry (nutrients, nitrate isotopes, and wastewater chemicals) between March 2007 and October 2008 from seven surface-water sites and three groundwater wells. During this same period, aquatic plant and macroinvertebrate samples were collected and habitat characteristics were measured at the surface-water sites.\r\n\r\nThe main objectives of this study were to (1) evaluate nutrient concentrations (that influence biological indicators of eutrophication) and potential sources of nutrients by using stable isotope analysis and other indicator chemicals (such as caffeine and disinfectants) that could provide evidence of anthropogenic sources, such as wastewater or septic tank contamination in Fish Creek and adjacent groundwater, and (2) characterize the algal, macrophyte, and macroinvertebrate communities and habitat of Fish Creek.\r\n\r\nNitrate was the dominant species of dissolved nitrogen present in all samples and was the only bioavailable species detected at concentrations greater than the laboratory reporting level in all surface-water samples. Average concentrations of dissolved nitrate in surface water were largest in samples collected from the two sites with seasonal flow near Teton Village and decreased downstream; the smallest concentration was at downstream site A-Wck. Concentrations of dissolved nitrate in groundwater were consistently greater than concentrations in corresponding surface-water sites during the same sampling event. Orthophosphate was the primary dissolved species of phosphorus present in all surface-water and groundwater samples. The average concentration of dissolved orthophosphate in surface water was largest in samples collected from near Teton Village; samples from all other sites had similar average concentrations. Concentrations of dissolved orthophosphate in groundwater also were typically greater than concentrations in corresponding surface-water sites during the same sampling event.\r\n\r\nThe aquatic plant communities in Fish Creek typically were composed of a mixture of macrophytes, macroalgae, microalgae, and moss. The composition of the aquatic plant community in Fish Creek appeared to shift in the downstream direction in 2007. On average, the proportion of macrophytes ranged from about 1 percent at site A-R1U, the most upstream site, to 54 percent of the plant community at site A-R6D, the farthest downstream site sampled during 2007. The downstream increase in macrophytes was accompanied by a downstream decrease in microalgae. The average proportion of microalgae ranged from 80 percent at site A-R1U to 24 percent at site A-R6D. The proportion of the macroalgae Cladophora in the aquatic plant community was relatively high at sites A-Wck and A-R3D in both 2007 and 2008.\r\n","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/sir20105188","collaboration":"Prepared in cooperation with Teton Conservation District","usgsCitation":"Eddy-Miller, C., Peterson, D.A., Wheeler, J.D., and Leemon, D.J., 2010, Characterization of water quality and biological communities, Fish Creek, Teton County, Wyoming, 2007-08: U.S. Geological Survey Scientific Investigations Report 2010-5188, vii, 60 p.; Supplemental Data; CDROM containing Tables, https://doi.org/10.3133/sir20105188.","productDescription":"vii, 60 p.; Supplemental Data; CDROM containing Tables","additionalOnlineFiles":"Y","temporalStart":"2006-10-01","temporalEnd":"2008-09-30","costCenters":[{"id":684,"text":"Wyoming Water Science Center","active":false,"usgs":true}],"links":[{"id":126773,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir_2010_5188.jpg"},{"id":14186,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2010/5188/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111,43 ], [ -111,44 ], [ -110.5,44 ], [ -110.5,43 ], [ -111,43 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4d03","contributors":{"authors":[{"text":"Eddy-Miller, Cheryl A.","contributorId":86755,"corporation":false,"usgs":true,"family":"Eddy-Miller","given":"Cheryl A.","affiliations":[],"preferred":false,"id":306443,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, David A. davep@usgs.gov","contributorId":1742,"corporation":false,"usgs":true,"family":"Peterson","given":"David","email":"davep@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":306440,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wheeler, Jerrod D. 0000-0002-0533-8700 jwheele@usgs.gov","orcid":"https://orcid.org/0000-0002-0533-8700","contributorId":1893,"corporation":false,"usgs":true,"family":"Wheeler","given":"Jerrod","email":"jwheele@usgs.gov","middleInitial":"D.","affiliations":[{"id":685,"text":"Wyoming-Montana Water Science Center","active":false,"usgs":true}],"preferred":true,"id":306441,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Leemon, Daniel J.","contributorId":70090,"corporation":false,"usgs":true,"family":"Leemon","given":"Daniel","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":306442,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":98772,"text":"ds537 - 2010 - Bathymetric and streamflow data for the Quillayute, Dickey, and Bogachiel Rivers, Clallam County, Washington, April-May 2010","interactions":[],"lastModifiedDate":"2012-03-08T17:16:32","indexId":"ds537","displayToPublicDate":"2010-10-02T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"537","title":"Bathymetric and streamflow data for the Quillayute, Dickey, and Bogachiel Rivers, Clallam County, Washington, April-May 2010","docAbstract":"To facilitate the development of a two-dimensional hydrodynamic model of the Quillayute River estuary, the U.S. Geological Survey conducted a bathymetric survey of the Quillayute River and its tributaries, upstream of the La Push Harbor. Streamflow also was measured concurrent with the bathymetric survey. This report documents the bathymetric and streamflow data collected in the Quillayute (river mile 0.4-5.7), Dickey (river mile 0-0.4), and Bogachiel Rivers (river mile 0-0.8) on April 20-21 and May 4-6, 2010, including a longitudinal profile, about 7-miles long, of water-surface and riverbed elevations. In all, 173,800 bathymetric points were collected and streamflow measurements in the mainstem Quillayute River ranged from 3,630 to 7,800 cubic feet per second.\r\n","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/ds537","collaboration":"Prepared in cooperation with the U.S. Army Corps of Engineers, Seattle District","usgsCitation":"Czuba, J., Barnas, C.R., McKenna, T.E., Justin, G., and Payne, K.L., 2010, Bathymetric and streamflow data for the Quillayute, Dickey, and Bogachiel Rivers, Clallam County, Washington, April-May 2010: U.S. Geological Survey Data Series 537, iv, 12 p.; Bathymetry data; Longitudinal Profile data, https://doi.org/10.3133/ds537.","productDescription":"iv, 12 p.; Bathymetry data; Longitudinal Profile data","onlineOnly":"N","additionalOnlineFiles":"Y","temporalStart":"2010-04-01","temporalEnd":"2010-05-31","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":126097,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ds_537.jpg"},{"id":14182,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/537/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.65,47.88333333333333 ], [ -124.65,47.93333333333333 ], [ -124.53333333333333,47.93333333333333 ], [ -124.53333333333333,47.88333333333333 ], [ -124.65,47.88333333333333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640a61","contributors":{"authors":[{"text":"Czuba, Jonathan A.","contributorId":19917,"corporation":false,"usgs":true,"family":"Czuba","given":"Jonathan A.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":false,"id":306430,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnas, Christiana R.","contributorId":80792,"corporation":false,"usgs":true,"family":"Barnas","given":"Christiana","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":306431,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McKenna, Thomas E.","contributorId":80793,"corporation":false,"usgs":true,"family":"McKenna","given":"Thomas","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":306432,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Justin, Gregory","contributorId":14081,"corporation":false,"usgs":true,"family":"Justin","given":"Gregory","email":"","affiliations":[],"preferred":false,"id":306429,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Payne, Karen L. klpayne@usgs.gov","contributorId":3839,"corporation":false,"usgs":true,"family":"Payne","given":"Karen","email":"klpayne@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":306428,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70217565,"text":"70217565 - 2010 - Age and sex specific timing, frequency, and spatial distribution of horseshoe crab spawning in Delaware Bay: Insights from a large-scale radio telemetry array","interactions":[],"lastModifiedDate":"2021-01-21T23:39:59.605592","indexId":"70217565","displayToPublicDate":"2010-10-01T16:42:39","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1362,"text":"Current Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Age and sex specific timing, frequency, and spatial distribution of horseshoe crab spawning in Delaware Bay: Insights from a large-scale radio telemetry array","docAbstract":"To study horseshoe crab Limulus polyphemus spawning behavior and migration over a large-spatial extent (>100 km), we arrayed fixed station radio receivers throughout Delaware Bay and deployed radio transmitters and archival tags on adult horseshoe crabs prior to their spawning season. We tagged and released 160 females and 60 males in 2004 and 217 females in 2005. The array covered approximately 140 km of shoreline. Recapture rates were >70% with multi-year recaptures. We categorized adult age by carapace wear. Older females tended to spawn earlier in the season and more frequently than young females, but those tendencies were more apparent in 2004 when spawning overall occurred earlier than in 2005 when spawning was delayed possibly due to decreased water temperatures. Timing of initial spawning within a year was correlated with water temperature. After adjusting for day of first spring tide, the day of first spawning was 4 days earlier for every 1 degree (̊C) rise in mean daily water temperature in May. Seventy nine % of spawning occurred during nighttime high tides. Fifty five % of spawning occurred within 3 d of a spring tide, which was slightly higher than the 47% expected if spawning was uniformly distributed regardless of tidal cycle. Within the same spawning season, males and females were observed spawning or intertidally resting at more than one beach separated by >5 km. Between years, most (77%) did not return to spawn at the same beach. Probability of stranding was strongly age dependent for males and females with older adults experiencing higher stranding rates. Horseshoe crabs staging in the shallow waters east of the channel spawned exclusively along the eastern (NJ) shoreline, but those staging west of the channel spawned throughout the bay. Overall, several insights emerged from the use of radio telemetry, which advances our understanding of horseshoe crab ecology and will be useful in conserving the Delaware Bay horseshoe crab population and habitats.
","language":"English","publisher":"Oxford Academic","doi":"10.1093/czoolo/56.5.563","usgsCitation":"Smith, D.R., Brousseau, L.J., Mandt, M.T., and Millard, M.J., 2010, Age and sex specific timing, frequency, and spatial distribution of horseshoe crab spawning in Delaware Bay: Insights from a large-scale radio telemetry array: Current Zoology, v. 56, no. 5, p. 563-574, https://doi.org/10.1093/czoolo/56.5.563.","productDescription":"12 p.","startPage":"563","endPage":"574","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":475656,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/czoolo/56.5.563","text":"Publisher Index Page"},{"id":382468,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Delaware, New Jersey","otherGeospatial":"Delaware Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -75.6134033203125,\n 38.70694605159386\n ],\n [\n -74.849853515625,\n 38.70694605159386\n ],\n [\n -74.849853515625,\n 39.53370327008705\n ],\n [\n -75.6134033203125,\n 39.53370327008705\n ],\n [\n -75.6134033203125,\n 38.70694605159386\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"56","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Smith, David R. 0000-0001-6074-9257 drsmith@usgs.gov","orcid":"https://orcid.org/0000-0001-6074-9257","contributorId":168442,"corporation":false,"usgs":true,"family":"Smith","given":"David","email":"drsmith@usgs.gov","middleInitial":"R.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":808688,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brousseau, L. J.","contributorId":24534,"corporation":false,"usgs":false,"family":"Brousseau","given":"L.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":808689,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mandt, Mary T.","contributorId":248260,"corporation":false,"usgs":false,"family":"Mandt","given":"Mary","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":808690,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Millard, Michael J.","contributorId":23411,"corporation":false,"usgs":false,"family":"Millard","given":"Michael","email":"","middleInitial":"J.","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":808691,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70236123,"text":"70236123 - 2010 - Introduction","interactions":[],"lastModifiedDate":"2022-10-13T15:53:51.961341","indexId":"70236123","displayToPublicDate":"2010-10-01T14:10:15","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Introduction","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Land subsidence, associated hazards, and the role of natural resources development, IAHS-AISH publication 339","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"8th International Symposium on Land Subsidence","conferenceDate":"October 17-22, 2010","conferenceLocation":"Querétaro, Mexico","language":"English","publisher":"International Association of Hydrological Sciences","usgsCitation":"Aureli, A., Johnson, A.I., Carbognin, L., Prince, K.R., Barends, F.B., Carreon-Freyre, D., Galloway, D.L., Gambolati, G., and Zanin, J.F., 2010, Introduction, chap. of Land subsidence, associated hazards, and the role of natural resources development, IAHS-AISH publication 339, v. 339, p. ix-x.","productDescription":"2 p.","startPage":"ix","endPage":"x","costCenters":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":405831,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"339","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Carreon-Freyre, Dora","contributorId":203530,"corporation":false,"usgs":false,"family":"Carreon-Freyre","given":"Dora","email":"","affiliations":[{"id":36644,"text":"Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Queretaro, Mexico","active":true,"usgs":false}],"preferred":false,"id":854444,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Cerca, Mariano","contributorId":296082,"corporation":false,"usgs":false,"family":"Cerca","given":"Mariano","email":"","affiliations":[],"preferred":false,"id":854445,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Galloway, Devin 0000-0003-0904-5355","orcid":"https://orcid.org/0000-0003-0904-5355","contributorId":215888,"corporation":false,"usgs":true,"family":"Galloway","given":"Devin","email":"","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":854446,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Aureli, Alice","contributorId":295919,"corporation":false,"usgs":false,"family":"Aureli","given":"Alice","email":"","affiliations":[],"preferred":false,"id":850153,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, A. Ivan","contributorId":295920,"corporation":false,"usgs":false,"family":"Johnson","given":"A.","email":"","middleInitial":"Ivan","affiliations":[],"preferred":false,"id":850154,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carbognin, Laura","contributorId":295921,"corporation":false,"usgs":false,"family":"Carbognin","given":"Laura","email":"","affiliations":[],"preferred":false,"id":850155,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Prince, Keith R. krprince@usgs.gov","contributorId":1413,"corporation":false,"usgs":true,"family":"Prince","given":"Keith","email":"krprince@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":850156,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Barends, Frans B.","contributorId":295922,"corporation":false,"usgs":false,"family":"Barends","given":"Frans","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":850157,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Carreon-Freyre, Dora","contributorId":203530,"corporation":false,"usgs":false,"family":"Carreon-Freyre","given":"Dora","email":"","affiliations":[{"id":36644,"text":"Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Queretaro, Mexico","active":true,"usgs":false}],"preferred":false,"id":850158,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Galloway, Devin L. 0000-0003-0904-5355 dlgallow@usgs.gov","orcid":"https://orcid.org/0000-0003-0904-5355","contributorId":679,"corporation":false,"usgs":true,"family":"Galloway","given":"Devin","email":"dlgallow@usgs.gov","middleInitial":"L.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":850159,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gambolati, Giuseppe","contributorId":295923,"corporation":false,"usgs":false,"family":"Gambolati","given":"Giuseppe","email":"","affiliations":[],"preferred":false,"id":850160,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Zanin, Jane Frankenfield","contributorId":295924,"corporation":false,"usgs":false,"family":"Zanin","given":"Jane","email":"","middleInitial":"Frankenfield","affiliations":[],"preferred":false,"id":850161,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70200862,"text":"70200862 - 2010 - Hydrovolcanic features on Mars: Preliminary analysis of one Mars year of HiRISE observations","interactions":[],"lastModifiedDate":"2021-05-06T15:42:13.155534","indexId":"70200862","displayToPublicDate":"2010-10-01T13:32:14","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Hydrovolcanic features on Mars: Preliminary analysis of one Mars year of HiRISE observations","docAbstract":"We provide an overview of features indicative of the interaction between water and lava and/or magma on Mars as seen by the High Resolution Imaging Science Experiment (HiRISE) camera during the Primary Science Phase of the Mars Reconnaissance Orbiter (MRO) mission. The ability to confidently resolve meter-scale features from orbit has been extremely useful in the study of the most pristine examples. In particular, HiRISE has allowed the documentation of previously undescribed features associated with phreatovolcanic cones (formed by the interaction of lava and groundwater) on rapidly emplaced flood lavas. These include \"moats\" and \"wakes\" that indicate that the lava crust was thin and mobile, respectively [Jaeger, W.L., Keszthelyi, L.P., McEwen, A.S., Dundas, C.M., Russel, P.S., 2007. Science 317, 1709-1711]. HiRISE has also discovered entablature-style jointing in lavas that is indicative of water-cooling [Milazzo, M.P., Keszthelyi, L.P., Jaeger, W.L., Rosiek, M., Mattson, S., Verba, C., Beyer, R.A., Geissler, P.E., McEwen, A.S., and the HiRISE Team, 2009. Geology 37, 171-174]. Other observations strongly support the idea of extensive volcanic mudflows (lahars). Evidence for other forms of hydrovolcanism, including glaciovolcanic interactions, is more equivocal. This is largely because most older and high-latitude terrains have been extensively modified, masking any earlier 1-10 m scale features. Much like terrestrial fieldwork, the prerequisite for making full use of HiRISE's capabilities is finding good outcrops.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.icarus.2009.08.020","usgsCitation":"Keszthelyi, L., Jaeger, W.L., Dundas, C.M., Martinez-Alonso, S., McEwen, A.S., and Milazzo, M.P., 2010, Hydrovolcanic features on Mars: Preliminary analysis of one Mars year of HiRISE observations: Icarus, v. 205, no. 1, p. 211-229, https://doi.org/10.1016/j.icarus.2009.08.020.","productDescription":"19 p.","startPage":"211","endPage":"229","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":359282,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"205","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5be40824e4b0b3fc5cf7cc10","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":750961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jaeger, Windy L.","contributorId":61679,"corporation":false,"usgs":true,"family":"Jaeger","given":"Windy","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":750962,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dundas, Colin M. 0000-0003-2343-7224 cdundas@usgs.gov","orcid":"https://orcid.org/0000-0003-2343-7224","contributorId":2937,"corporation":false,"usgs":true,"family":"Dundas","given":"Colin","email":"cdundas@usgs.gov","middleInitial":"M.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":750963,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Martinez-Alonso, Sara","contributorId":73023,"corporation":false,"usgs":true,"family":"Martinez-Alonso","given":"Sara","email":"","affiliations":[],"preferred":false,"id":750964,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McEwen, Alfred S.","contributorId":61657,"corporation":false,"usgs":false,"family":"McEwen","given":"Alfred","email":"","middleInitial":"S.","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":750965,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Milazzo, Moses P. 0000-0002-9101-2191 moses@usgs.gov","orcid":"https://orcid.org/0000-0002-9101-2191","contributorId":4811,"corporation":false,"usgs":true,"family":"Milazzo","given":"Moses","email":"moses@usgs.gov","middleInitial":"P.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":750966,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70199843,"text":"70199843 - 2010 - Tree growth and mortality during 20 years of managing a Green-Tree Reservoir in Arkansas, USA","interactions":[],"lastModifiedDate":"2018-10-01T11:51:24","indexId":"70199843","displayToPublicDate":"2010-10-01T11:44:14","publicationYear":"2010","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":"Tree growth and mortality during 20 years of managing a Green-Tree Reservoir in Arkansas, USA","docAbstract":"Green-Tree Reservoirs (GTR) are bottomland hardwood forests that are flooded during late fall and winter to provide waterfowl habitat. Early reports suggested that increased moisture improved tree growth and mast production; however, recent reports showed reduced vigor and growth. This study examines the effects of 20 years of GTR management practices in the Felsenthal National Wildlife Refuge, Crossett, Arkansas. Tree species composition, size characteristics, and vigor classes were measured in 1990, 1995, 2001, and 2006. The overall annual tree mortality rate was 2.6%, with high elevations at 1.7% and low elevations at 3.1%. Annual mortality rates exceeded 3% for willow oak (Quercus phellos) and water hickory (Carya aquatica), while rates for Nuttall oak (Q. texana), overcup oak (Q. lyrata), and sweetgum (Liquidambar styraciflua.) were lower at 2.8, 2.4, and 1.5%, respectively. Tree health (vigor) has degraded substantially for over 60% of trees initially rated in good or fair condition. Statistical probit models were generated to predict short-term (5 years) and long-term (15 years) vigor degradation. Low numbers of saplings and little advanced regeneration indicated lack of tree replacement, suggesting that inundation strategies of the GTR management may have long-term impacts on forest structure and composition in the southeastern United States.
","language":"English","publisher":"Springer","doi":"10.1007/s13157-010-0062-6","usgsCitation":"Keeland, B.D., Draugelis-Dale, R.O., and McCoy, J.W., 2010, Tree growth and mortality during 20 years of managing a Green-Tree Reservoir in Arkansas, USA: Wetlands, v. 30, p. 405-416, https://doi.org/10.1007/s13157-010-0062-6.","productDescription":"12 p.","startPage":"405","endPage":"416","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":357951,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arkansas","volume":"30","noUsgsAuthors":false,"publicationDate":"2010-05-04","publicationStatus":"PW","scienceBaseUri":"5c10c655e4b034bf6a7f3e23","contributors":{"authors":[{"text":"Keeland, Bobby D.","contributorId":103506,"corporation":false,"usgs":true,"family":"Keeland","given":"Bobby","email":"","middleInitial":"D.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":746864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Draugelis-Dale, Rassa O. 0000-0001-8532-3287 daler@usgs.gov","orcid":"https://orcid.org/0000-0001-8532-3287","contributorId":20422,"corporation":false,"usgs":true,"family":"Draugelis-Dale","given":"Rassa","email":"daler@usgs.gov","middleInitial":"O.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":746865,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McCoy, John W. 0000-0003-3013-730X mccoyj@usgs.gov","orcid":"https://orcid.org/0000-0003-3013-730X","contributorId":3082,"corporation":false,"usgs":true,"family":"McCoy","given":"John","email":"mccoyj@usgs.gov","middleInitial":"W.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":746866,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199988,"text":"70199988 - 2010 - Effects of light and nutrients on seasonal phytoplankton succession in a temperate eutrophic coastal lagoon","interactions":[],"lastModifiedDate":"2018-10-10T09:04:24","indexId":"70199988","displayToPublicDate":"2010-10-01T09:03:46","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Effects of light and nutrients on seasonal phytoplankton succession in a temperate eutrophic coastal lagoon","docAbstract":"Rodeo Lagoon, a low-salinity coastal lagoon in the Golden Gate National Recreation Area, California, United States, has been identified as an important ecosystem due to the presence of the endangered goby (Eucyclogobius newberri). Despite low anthropogenic impacts, the lagoon exhibits eutrophic conditions and supports annual episodes of very high phytoplankton biomass. Weekly assessments (February–December 2007) of phytoplankton indicated diatoms, Nodularia spumigena, Chaetoceros muelleri var. muelleri, flagellated protozoa, a mixed assemblage, and Microcystis aeruginosa dominated the algal community in successive waves. Phytoplankton succession was significantly correlated (r 2 = 0.37, p < 0.001) with averaged daily irradiance (max = 29.7 kW m−2 d−1), water column light attenuation (max = 14 m−1), and orthophosphate and dissolved inorganic carbon concentrations (max = 1.5 and 2920 μM, respectively). Negative effects of phytoplankton growth and decay included excessive ammonia concentrations (exceeded EPA guidelines on 77% of sampling days), hypoxia (<3 mg l−1dissolved oxygen), and introduction of several microcystins, all in the latter half of the year. Our one-year study suggests that this coastal lagoon is a highly seasonal system with strong feedbacks between phytoplankton and geochemical processes.
","language":"English","publisher":"Springer Netherlands","doi":"10.1007/s10750-010-0380-y","usgsCitation":"Drake, J.L., Carpenter, E.J., Cousins, M., Nelson, K.L., Guido-Zarate, A., and Loftin, K.A., 2010, Effects of light and nutrients on seasonal phytoplankton succession in a temperate eutrophic coastal lagoon: Hydrobiologia, v. 654, no. 1, p. 177-192, https://doi.org/10.1007/s10750-010-0380-y.","productDescription":"16 p.","startPage":"177","endPage":"192","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":475663,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10750-010-0380-y","text":"Publisher Index Page"},{"id":358227,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Rodeo Lagoon, Golden Gate National Recreation Area","volume":"654","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-07-30","publicationStatus":"PW","scienceBaseUri":"5c10c655e4b034bf6a7f3e29","contributors":{"authors":[{"text":"Drake, Jeana L.","contributorId":208544,"corporation":false,"usgs":false,"family":"Drake","given":"Jeana","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":747639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carpenter, Edward J.","contributorId":208545,"corporation":false,"usgs":false,"family":"Carpenter","given":"Edward","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":747640,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cousins, Mary","contributorId":208546,"corporation":false,"usgs":false,"family":"Cousins","given":"Mary","email":"","affiliations":[],"preferred":false,"id":747641,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nelson, Kara L.","contributorId":208547,"corporation":false,"usgs":false,"family":"Nelson","given":"Kara","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":747642,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Guido-Zarate, Alejandro","contributorId":208548,"corporation":false,"usgs":false,"family":"Guido-Zarate","given":"Alejandro","email":"","affiliations":[],"preferred":false,"id":747643,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Loftin, Keith A. 0000-0001-5291-876X kloftin@usgs.gov","orcid":"https://orcid.org/0000-0001-5291-876X","contributorId":868,"corporation":false,"usgs":true,"family":"Loftin","given":"Keith","email":"kloftin@usgs.gov","middleInitial":"A.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":747644,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70231418,"text":"70231418 - 2010 - Ancient earthquakes from archaeoseismic evidence during the Visigothic and Islamic periods in the archaeological site of “Tolmo de Minateda” (SE Spain)","interactions":[],"lastModifiedDate":"2022-05-10T14:19:36.704814","indexId":"70231418","displayToPublicDate":"2010-10-01T09:01:52","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Ancient earthquakes from archaeoseismic evidence during the Visigothic and Islamic periods in the archaeological site of “Tolmo de Minateda” (SE Spain)","docAbstract":"The ruins of the ancient settlement of “El Tolmo de Minateda” are one of the best representative archaeological sites within the Albacete Province (SE Spain), characterized by a well-preserved record for the last ~3800 yr. The present ruins record an almost continuous of occupation from the Late Bronze Age (Iberian Culture, from ca. third century B.C.) to the High Middle Ages, including intervening and successive Roman, Visigoth, and Muslim city remains. The eventual Muslim settlement was abruptly abandoned and destroyed during the ninth–tenth centuries A.D., leaving a lack of any archaeological evidence of war or decay. Another previous anomalous archaeological episode of abrupt city abandonment and destruction is recorded during the Visigothic Period (seventh century). The archaeological record of this city supports evidence for earthquake damage linked to both periods of city abandonment and destruction, including oriented collapse of walls, watchtowers, and columns, oriented cracking of walls and column drums, as well as in situ broken pottery, abrupt abandonment of kilns, and anomalous sedimentary infilling of canals and water-supply facilities. Additionally, large-scale rockfalls containing Visigothic carved tombs are also apparently associated with both episodes, constituting one of the few instances of combined geoarchaeological evidence of earthquake ground effects ever reported. As a means of testing the theoretical archaeoseismic potential of this site, we obtained an archaeoseismic quality factor (AQF) value of 0.074.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ancient earthquakes","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/2010.2471(15)","usgsCitation":"Rodriguez-Pascua, M., Silva, P.G., Garduno-Monroy, V.H., Perez-Lopez, R., Israde-Alcántara, I., Giner-Robles, J.L., Bischoff, J.L., and Calvo, J.P., 2010, Ancient earthquakes from archaeoseismic evidence during the Visigothic and Islamic periods in the archaeological site of “Tolmo de Minateda” (SE Spain), chap. of Ancient earthquakes, v. 471, p. 100-108, https://doi.org/10.1130/2010.2471(15).","productDescription":"9 p.","startPage":"100","endPage":"108","costCenters":[],"links":[{"id":400387,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Spain","otherGeospatial":"Tolmo de Minateda","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -1.646919250488281,\n 38.43799313099272\n ],\n [\n -1.5686416625976562,\n 38.43799313099272\n ],\n [\n -1.5686416625976562,\n 38.50062390460539\n ],\n [\n -1.646919250488281,\n 38.50062390460539\n ],\n [\n -1.646919250488281,\n 38.43799313099272\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"471","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Rodriguez-Pascua, M. A.","contributorId":67325,"corporation":false,"usgs":true,"family":"Rodriguez-Pascua","given":"M. A.","affiliations":[],"preferred":false,"id":842543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Silva, P. G.","contributorId":291578,"corporation":false,"usgs":false,"family":"Silva","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":842544,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garduno-Monroy, Victor H.","contributorId":10962,"corporation":false,"usgs":true,"family":"Garduno-Monroy","given":"Victor","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":842545,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perez-Lopez, R.","contributorId":291579,"corporation":false,"usgs":false,"family":"Perez-Lopez","given":"R.","affiliations":[],"preferred":false,"id":842546,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Israde-Alcántara, I.","contributorId":60422,"corporation":false,"usgs":true,"family":"Israde-Alcántara","given":"I.","affiliations":[],"preferred":false,"id":842547,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Giner-Robles, J. L.","contributorId":22602,"corporation":false,"usgs":true,"family":"Giner-Robles","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":842548,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bischoff, James L. jbischoff@usgs.gov","contributorId":1389,"corporation":false,"usgs":true,"family":"Bischoff","given":"James","email":"jbischoff@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":842549,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Calvo, J. P.","contributorId":24136,"corporation":false,"usgs":true,"family":"Calvo","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":842550,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70056340,"text":"70056340 - 2010 - Creative use of pilot points to address site and regional scale heterogeneity in a variable-density model","interactions":[],"lastModifiedDate":"2014-04-18T08:45:58","indexId":"70056340","displayToPublicDate":"2010-10-01T08:36:03","publicationYear":"2010","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Creative use of pilot points to address site and regional scale heterogeneity in a variable-density model","docAbstract":"Pilot points for parameter estimation were creatively used to address heterogeneity at both the well field and regional scales in a variable-density groundwater flow and solute transport model designed to test multiple hypotheses for upward migration of fresh effluent injected into a highly transmissive saline carbonate aquifer. Two sets of pilot points were used within in multiple model layers, with one set of inner pilot points (totaling 158) having high spatial density to represent hydraulic conductivity at the site, while a second set of outer points (totaling 36) of lower spatial density was used to represent hydraulic conductivity further from the site. Use of a lower spatial density outside the site allowed (1) the total number of pilot points to be reduced while maintaining flexibility to accommodate heterogeneity at different scales, and (2) development of a model with greater areal extent in order to simulate proper boundary conditions that have a limited effect on the area of interest. The parameters associated with the inner pilot points were log transformed hydraulic conductivity multipliers of the conductivity field obtained by interpolation from outer pilot points. The use of this dual inner-outer scale parameterization (with inner parameters constituting multipliers for outer parameters) allowed smooth transition of hydraulic conductivity from the site scale, where greater spatial variability of hydraulic properties exists, to the regional scale where less spatial variability was necessary for model calibration. While the model is highly parameterized to accommodate potential aquifer heterogeneity, the total number of pilot points is kept at a minimum to enable reasonable calibration run times.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"PEST Conference 2009 Proceedings","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"conferenceTitle":"PEST Conference","conferenceDate":"2009-11-02T00:00:00","conferenceLocation":"Potomac, MD","language":"English","publisher":"S.S. 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Lauderdale","active":false,"usgs":true}],"links":[{"id":286411,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":279193,"type":{"id":15,"text":"Index Page"},"url":"https://www.lulu.com/shop/ss-papadopulos-associates-inc/pest-conference-2009-proceedings-potomac-maryland-color/paperback/product-12914428.html"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53558ffee4b0120853e8be9f","contributors":{"authors":[{"text":"Dausman, Alyssa M.","contributorId":64337,"corporation":false,"usgs":true,"family":"Dausman","given":"Alyssa M.","affiliations":[],"preferred":false,"id":486536,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doherty, John","contributorId":43843,"corporation":false,"usgs":true,"family":"Doherty","given":"John","affiliations":[],"preferred":false,"id":486535,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langevin, Christian D. 0000-0001-5610-9759 langevin@usgs.gov","orcid":"https://orcid.org/0000-0001-5610-9759","contributorId":1030,"corporation":false,"usgs":true,"family":"Langevin","given":"Christian","email":"langevin@usgs.gov","middleInitial":"D.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":486534,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70194397,"text":"70194397 - 2010 - A population genetic analysis of the midget faded rattlesnake in Wyoming","interactions":[],"lastModifiedDate":"2017-11-27T15:51:07","indexId":"70194397","displayToPublicDate":"2010-10-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1324,"text":"Conservation Genetics","active":true,"publicationSubtype":{"id":10}},"title":"A population genetic analysis of the midget faded rattlesnake in Wyoming","docAbstract":"Little is known about the population biology of midget faded rattlesnakes, a sensitive subspecies of the Western Rattlesnake, despite conservation efforts to protect them. We conducted a molecular genetic study of midget faded rattlesnakes in southwestern Wyoming to investigate population genetic structure in this area, particularly with reference to Flaming Gorge Reservoir and its associated human activities, and to document levels of genetic diversity. We genotyped 229 snakes from 11 sampling sites using 9 microsatellite loci. We found significant levels of genetic structure among sites that were better explained by geographic region and isolation by distance than by position relative to waterways. Sites on either side of the reservoir at its widest point were not significantly different. Six of the sites showed signatures of a population bottleneck using an alpha value of 0.05. Three of these bottlenecked sites (the three most northern) were the most genetically distinct and occur in areas of greatest impact from human activity.
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We evaluated habitat use by three disjunct populations of fish species (Phoxinus erythrogaster, Nocomis asper and Etheostoma microperca) and, a widespread species, E. spectabile in spring-fed streams draining the Arbuckle-Simpson aquifer of southern Oklahoma. Habitat preference for each species was classified based on depth, velocity, substrate and cover. Phoxinus erthyrogaster and N. asper were associated with pools with little cover, while E. microperca was found in heavily vegetated areas. Etheostoma spectabile used habitat in riffles with rapid velocity and large substrate types. We classified habitat selection and avoidance with Chesson's α and observed significant differences in habitat use among species in the study sites. Overall differences in habitat use for P. erythrogaster among the three study sites were primarily related to differences in available habitat between springs. Our study provides vital ecological information about disjunct populations of groundwater-dependent fishes in an aquifer that is experiencing development pressure for water abstraction.
","language":"English","publisher":"University of Notre Dame","doi":"10.1674/0003-0031-164.2.201","usgsCitation":"Seilheimer, T.S., and Fisher, W.L., 2010, Habitat use by fishes in groundwater-dependent streams of southern Oklahoma: The American Midland Naturalist, v. 164, no. 2, p. 201-216, https://doi.org/10.1674/0003-0031-164.2.201.","productDescription":"16 p.","startPage":"201","endPage":"216","ipdsId":"IP-012120","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":348941,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","volume":"164","issue":"2","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a610aaae4b06e28e9c256c4","contributors":{"authors":[{"text":"Seilheimer, Titus S.","contributorId":50772,"corporation":false,"usgs":true,"family":"Seilheimer","given":"Titus","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":722316,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, William L. wfisher@usgs.gov","contributorId":1229,"corporation":false,"usgs":true,"family":"Fisher","given":"William","email":"wfisher@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":718124,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":98751,"text":"fs20103069 - 2010 - Groundwater resources of Mosteiros basin, island of Fogo, Cape Verde, West Africa","interactions":[],"lastModifiedDate":"2018-03-21T15:13:26","indexId":"fs20103069","displayToPublicDate":"2010-09-30T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2010-3069","title":"Groundwater resources of Mosteiros basin, island of Fogo, Cape Verde, West Africa","docAbstract":"Groundwater resources in Cape Verde provide water for agriculture, industry, and human consumption. These resources are limited and susceptible to contamination. Additional groundwater resources are needed for continued agricultural development, particularly during times of drought, but increased use and (or) climatic change may have adverse effects on the quantity and quality of freshwater available. In volcanic island aquifers such as those of Cape Verde, a lens of fresh groundwater typically ?floats? upon a layer of brackish water at the freshwater/saltwater boundary, and increased pumping may cause salt water intrusion or other contamination. 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In July 2009, the Coast Salish People and U.S. Geological Survey conducted a second water quality study of the Salish Sea to examine spatial and temporal variability of environmental conditions of these surface waters as part of the annual Tribal Journey. Six canoes of approximately 100 towed multi parameter water-quality sondes as the Salish People traveled their ancestral waters during the middle of summer. Sea surface temperature, salinity, pH, dissolved oxygen, and turbidity were measured simultaneously at ten-second intervals, and more than 54,000 data points spanning 1,300 kilometers of the Salish Sea were collected. The project also synthesized Coast Salish ecological knowledge and culture with scientific monitoring to better understand and predict the response of coastal habitats and marine resources. Comparisons with data collected in 2008 reveal significantly higher mean surface-water temperatures in most subbasins in 2009 linked to record air temperatures that affected the Pacific Northwest in July 2009. Through large-scale spatial measurements collected each summer, the project helps to identify patterns in summer water quality, areas of water-quality impairment, and trends occurring through time.
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