Agricultural activities have substantially increased rates of soil erosion and deposition, and these processes have a significant impact on carbon (C) mineralization and burial. Here, we present a synthesis of erosion effects on carbon dynamics and discuss the implications of soil erosion for carbon sequestration strategies. We demonstrate that for a range of data-based parameters from the literature, soil erosion results in increased C storage onto land, an effect that is heterogeneous on the landscape and is variable on various timescales. We argue that the magnitude of the erosion term and soil carbon residence time, both strongly influenced by soil management, largely control the strength of the erosion-induced sink. In order to evaluate fully the effects of soil management strategies that promote carbon sequestration, a full carbon account must be made that considers the impact of erosion-enhanced disequilibrium between carbon inputs and decomposition, including effects on net primary productivity and decomposition rates.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Carbon Sequestration and Its Role in the Global Carbon Cycle","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Wiley","doi":"10.1029/2005GM000326","usgsCitation":"Van Oost, K., Van Hemelryck, H., and Harden, J.W., 2009, Erosion of soil organic carbon: implications for carbon sequestration, chap. of Carbon Sequestration and Its Role in the Global Carbon Cycle, v. 183, p. 189-202, https://doi.org/10.1029/2005GM000326.","productDescription":"14 p.","startPage":"189","endPage":"202","numberOfPages":"14","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":476394,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2005gm000326","text":"Publisher Index Page"},{"id":272797,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":272796,"type":{"id":15,"text":"Index Page"},"url":"https://onlinelibrary.wiley.com/doi/10.1029/2005GM000326/summary"}],"volume":"183","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51a08be0e4b0e4245580656a","contributors":{"editors":[{"text":"McPherson, B.J.","contributorId":40877,"corporation":false,"usgs":true,"family":"McPherson","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":509329,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Sundquist, E.T.","contributorId":13990,"corporation":false,"usgs":true,"family":"Sundquist","given":"E.T.","email":"","affiliations":[],"preferred":false,"id":509328,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Van Oost, Kristof","contributorId":98545,"corporation":false,"usgs":false,"family":"Van Oost","given":"Kristof","email":"","affiliations":[],"preferred":false,"id":478920,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Hemelryck, Hendrik","contributorId":25443,"corporation":false,"usgs":false,"family":"Van Hemelryck","given":"Hendrik","email":"","affiliations":[],"preferred":false,"id":478918,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harden, Jennifer W. 0000-0002-6570-8259 jharden@usgs.gov","orcid":"https://orcid.org/0000-0002-6570-8259","contributorId":1971,"corporation":false,"usgs":true,"family":"Harden","given":"Jennifer","email":"jharden@usgs.gov","middleInitial":"W.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":478919,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70037303,"text":"70037303 - 2009 - Using drift nets to capture early life stages and monitor spawning of the yangtze river chinese sturgeon (Acipenser sinensis)","interactions":[],"lastModifiedDate":"2012-03-12T17:22:08","indexId":"70037303","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Using drift nets to capture early life stages and monitor spawning of the yangtze river chinese sturgeon (Acipenser sinensis)","docAbstract":"A sampling system for capturing sturgeon eggs using a D-shaped bottom anchored drift net was used to capture early life stages (ELS) of Chinese sturgeon, Acipenser sinensis, and monitor annual spawning success at Yichang on the Yangtze River, 1996-2004, before and just after the Three Gorges Dam began operation. Captured were 96 875 ELS (early life stages: eggs, yolk-sac larvae = eleuthero embryos, and larvae); most were eggs and only 2477 were yolk-sac larvae. Most ELS were captured in the main river channel and inside the bend at the Yichang spawning reach. Yolk-sac larvae were captured for a maximum of 3 days after hatching began, indicating quick dispersal downstream. The back-calculated day of egg fertilization over the eight years indicated a maximum spawning window of 23 days (20 October-10 November). Spawning in all years was restricted temporally, occurred mostly at night and during one or two spawning periods, each lasting several days. The brief temporal spawning window may reduce egg predation by opportunistic predators by flooding the river bottom with millions of eggs. During 1996-2002, the percentage of fertilized eggs in an annual 20-egg sample was between 63.5 to 94.1%; however, in 2003 the percentage fertilized was only 23.8%. This sudden decline may be related to the altered environmental conditions at Yichang caused by operation of the Three Gorges Dam. Further studies are needed to monitor spawning and changes in egg fertilization in this threatened population. ?? 2009 Blackwell Verlag GmbH.","largerWorkTitle":"Journal of Applied Ichthyology","language":"English","doi":"10.1111/j.1439-0426.2009.01269.x","issn":"01758659","usgsCitation":"Wei, Q., Kynard, B., Yang, D., Chen, X., Du, H., Shen, L., and Zhang, H., 2009, Using drift nets to capture early life stages and monitor spawning of the yangtze river chinese sturgeon (Acipenser sinensis), in Journal of Applied Ichthyology, v. 25, no. SUPPL. 2, p. 100-106, https://doi.org/10.1111/j.1439-0426.2009.01269.x.","startPage":"100","endPage":"106","numberOfPages":"7","costCenters":[],"links":[{"id":217090,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1439-0426.2009.01269.x"},{"id":245003,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"SUPPL. 2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc046e4b08c986b32a028","contributors":{"authors":[{"text":"Wei, Q.W.","contributorId":60050,"corporation":false,"usgs":true,"family":"Wei","given":"Q.W.","email":"","affiliations":[],"preferred":false,"id":460361,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kynard, B.","contributorId":51232,"corporation":false,"usgs":true,"family":"Kynard","given":"B.","email":"","affiliations":[],"preferred":false,"id":460360,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yang, D.G.","contributorId":11450,"corporation":false,"usgs":true,"family":"Yang","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":460357,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chen, X.H.","contributorId":81341,"corporation":false,"usgs":true,"family":"Chen","given":"X.H.","email":"","affiliations":[],"preferred":false,"id":460362,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Du, H.","contributorId":12275,"corporation":false,"usgs":true,"family":"Du","given":"H.","email":"","affiliations":[],"preferred":false,"id":460358,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Shen, L.","contributorId":103499,"corporation":false,"usgs":true,"family":"Shen","given":"L.","email":"","affiliations":[],"preferred":false,"id":460363,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Zhang, H.","contributorId":50311,"corporation":false,"usgs":true,"family":"Zhang","given":"H.","affiliations":[],"preferred":false,"id":460359,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70036371,"text":"70036371 - 2009 - Source inversion of the W-phase: Realtime implementation and extension to low magnitudes","interactions":[],"lastModifiedDate":"2012-03-12T17:22:02","indexId":"70036371","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3372,"text":"Seismological Research Letters","onlineIssn":"1938-2057","printIssn":"0895-0695","active":true,"publicationSubtype":{"id":10}},"title":"Source inversion of the W-phase: Realtime implementation and extension to low magnitudes","docAbstract":"Online material: Results for W-phase inversions for 498 eventswith M > 5.8 in 2007-2008, compared to results from theglobal Centroid Moment Tensor catalog.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Seismological Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/gssrl.80.5.817","issn":"08950695","usgsCitation":"Hayes, G., Rivera, L., and Kanamori, H., 2009, Source inversion of the W-phase: Realtime implementation and extension to low magnitudes: Seismological Research Letters, v. 80, no. 5, p. 817-822, https://doi.org/10.1785/gssrl.80.5.817.","startPage":"817","endPage":"822","numberOfPages":"6","costCenters":[],"links":[{"id":476162,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://resolver.caltech.edu/CaltechAUTHORS:20091103-084144082","text":"External Repository"},{"id":218582,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/gssrl.80.5.817"},{"id":246607,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"5","noUsgsAuthors":false,"publicationDate":"2009-09-21","publicationStatus":"PW","scienceBaseUri":"505b932ce4b08c986b31a339","contributors":{"authors":[{"text":"Hayes, G.P.","contributorId":75764,"corporation":false,"usgs":true,"family":"Hayes","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":455772,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rivera, L.","contributorId":39535,"corporation":false,"usgs":true,"family":"Rivera","given":"L.","email":"","affiliations":[],"preferred":false,"id":455770,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kanamori, H.","contributorId":55438,"corporation":false,"usgs":true,"family":"Kanamori","given":"H.","affiliations":[],"preferred":false,"id":455771,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70036055,"text":"70036055 - 2009 - Storm clouds on Saturn: Lightning-induced chemistry and associated materials consistent with Cassini/VIMS spectra","interactions":[],"lastModifiedDate":"2012-03-12T17:22:02","indexId":"70036055","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3083,"text":"Planetary and Space Science","active":true,"publicationSubtype":{"id":10}},"title":"Storm clouds on Saturn: Lightning-induced chemistry and associated materials consistent with Cassini/VIMS spectra","docAbstract":"Thunderstorm activity on Saturn is associated with optically detectable clouds that are atypically dark throughout the near-infrared. As observed by Cassini/VIMS, these clouds are ~20% less reflective than typical neighboring clouds throughout the spectral range from 0.8 ??m to at least 4.1 ??m. We propose that active thunderstorms originating in the 10-20 bar water-condensation region vertically transport dark materials at depth to the ~1 bar level where they can be observed. These materials in part may be produced by chemical processes associated with lightning, likely within the water clouds near the ~10 bar freezing level of water, as detected by the electrostatic discharge of lightning flashes observed by Cassini/RPWS (e.g., Fischer et al. 2008, Space Sci. Rev., 137, 271-285). We review lightning-induced pyrolytic chemistry involving a variety of Saturnian constituents, including hydrogen, methane, ammonia, hydrogen sulfide, phosphine, and water. We find that the lack of absorption in the 1-2 ??m spectral region by lightning-generated sulfuric and phosphorous condensates renders these constituents as minor players in determining the color of the dark storm clouds. Relatively small particulates of elemental carbon, formed by lightning-induced dissociation of methane and subsequently upwelled from depth - perhaps embedded within and on the surface of spectrally bright condensates such as ammonium hydrosulfide or ammonia - may be a dominant optical material within the dark thunderstorm-related clouds of Saturn. ?? 2009 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Planetary and Space Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.pss.2009.06.025","issn":"00320633","usgsCitation":"Baines, K.H., Delitsky, M., Momary, T., Brown, R.H., Buratti, B.J., Clark, R.N., and Nicholson, P.D., 2009, Storm clouds on Saturn: Lightning-induced chemistry and associated materials consistent with Cassini/VIMS spectra: Planetary and Space Science, v. 57, no. 14-15, p. 1650-1658, https://doi.org/10.1016/j.pss.2009.06.025.","startPage":"1650","endPage":"1658","numberOfPages":"9","costCenters":[],"links":[{"id":218566,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.pss.2009.06.025"},{"id":246588,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"14-15","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9875e4b08c986b31c04a","contributors":{"authors":[{"text":"Baines, K. H.","contributorId":37868,"corporation":false,"usgs":false,"family":"Baines","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":453808,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delitsky, M.L.","contributorId":76980,"corporation":false,"usgs":true,"family":"Delitsky","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":453812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Momary, T.W.","contributorId":40405,"corporation":false,"usgs":true,"family":"Momary","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":453809,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, R. H.","contributorId":19931,"corporation":false,"usgs":false,"family":"Brown","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":453807,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Buratti, B. J.","contributorId":69280,"corporation":false,"usgs":false,"family":"Buratti","given":"B.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":453811,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Clark, R. N.","contributorId":6568,"corporation":false,"usgs":true,"family":"Clark","given":"R.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":453806,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Nicholson, P. D.","contributorId":54330,"corporation":false,"usgs":false,"family":"Nicholson","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":453810,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70037335,"text":"70037335 - 2009 - The Mackenzie River magnetic anomaly, Yukon and Northwest Territories, Canada-Evidence for Early Proterozoic magmatic arc crust at the edge of the North American craton","interactions":[],"lastModifiedDate":"2023-11-29T01:31:08.687103","indexId":"70037335","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"The Mackenzie River magnetic anomaly, Yukon and Northwest Territories, Canada-Evidence for Early Proterozoic magmatic arc crust at the edge of the North American craton","docAbstract":"We characterize the nature of the source of the high-amplitude, long-wavelength, Mackenzie River magnetic anomaly (MRA), Yukon and Northwest Territories, Canada, based on magnetic field data collected at three different altitudes: 300 m, 3.5 km and 400 km. The MRA is the largest amplitude (13 nT) satellite magnetic anomaly over Canada. Within the extent of the MRA, source depth estimates (8–12 km) from Euler deconvolution of low-altitude aeromagnetic data show coincidence with basement depths interpreted from reflection seismic data. Inversion of high-altitude (3.5 km) aeromagnetic data produces an average magnetization of 2.5 A/m within a 15- to 35-km deep layer, a value typical of magmatic arc complexes. Early Proterozoic magmatic arc rocks have been sampled to the southeast of the MRA, within the Fort Simpson magnetic anomaly. The MRA is one of several broad-scale magnetic highs that occur along the inboard margin of the Cordillera in Canada and Alaska, which are coincident with geometric changes in the thrust front transition from the mobile belt to stable cratonic North America. The inferred early Proterozoic magmatic arc complex along the western edge of the North American craton likely influenced later tectonic evolution, by acting as a buttress along the inboard margin of the Cordilleran fold-and-thrust belt.
A comparison of a Mg/Ca-based sea-surface temperature (SST)-anomaly record from the northern Gulf of Mexico, a calculated index of variability in observed North Atlantic SST known as the Atlantic Multidecadal Oscillation (AMO), and a tree-ring reconstruction of the AMO contain similar patterns of variation over the last 110 years. Thus, the multidecadal variability observed in the instrumental record is present in the tree-ring and Mg/Ca proxy data. Frequency analysis of the Gulf of Mexico SST record and the tree-ring AMO reconstruction from 1550 to 1990 found similar multidecadal-scale periodicities (~30–60 years). This multidecadal periodicity is about half the observed (60–80 years) variability identified in the AMO for the 20th century. The historical records of hurricane landfalls reveal increased landfalls in the Gulf Coast region during time intervals when the AMO index is positive (warmer SST), and decreased landfalls when the AMO index is negative (cooler SST). Thus, we conclude that alternating intervals of high and low hurricane landfall occurrences may continue on multidecadal timescales along the northern Gulf Coast. However, given the short length of the instrumental record, the actual frequency and stability of the AMO are uncertain, and additional AMO proxy records are needed to establish the character of multidecadal-scale SST variability in the North Atlantic.
","language":"English","publisher":"Springer","doi":"10.1007/s00367-009-0154-6","usgsCitation":"Poore, R., DeLong, K.L., Richey, J., and Quinn, T.M., 2009, Evidence of multidecadal climate variability and the Atlantic Multidecadal Oscillation from a Gulf of Mexico sea-surface temperature-proxy record: Geo-Marine Letters, v. 29, no. 6, p. 477-484, https://doi.org/10.1007/s00367-009-0154-6.","productDescription":"8 p.","startPage":"477","endPage":"484","numberOfPages":"8","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":245363,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Louisiana, Mississippi, Texas","otherGeospatial":"Gulf of Mexico","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -80.08387926403837,\n 25.301918867373118\n ],\n [\n -83.36445674406838,\n 30.46212264770439\n ],\n [\n -98.3474126351965,\n 30.873625135364605\n ],\n [\n -98.68428997730477,\n 25.9876155709089\n ],\n [\n -96.90384553938452,\n 25.907104062373627\n ],\n [\n -96.4641385719641,\n 27.915175629556707\n ],\n [\n -94.60991921418577,\n 28.90260199767052\n ],\n [\n -92.36316751421896,\n 29.032039277632876\n ],\n [\n -90.12844167636035,\n 28.66080710509815\n ],\n [\n -87.34951890399915,\n 29.75234559869819\n ],\n [\n -84.14026214078959,\n 29.190036756192097\n ],\n [\n -81.27229781898602,\n 24.979412009739562\n ],\n [\n -80.08387926403837,\n 25.301918867373118\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"29","issue":"6","noUsgsAuthors":false,"publicationDate":"2009-08-29","publicationStatus":"PW","scienceBaseUri":"505a0d65e4b0c8380cd52fc3","contributors":{"authors":[{"text":"Poore, R.Z.","contributorId":35314,"corporation":false,"usgs":true,"family":"Poore","given":"R.Z.","email":"","affiliations":[],"preferred":false,"id":461194,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DeLong, K. L.","contributorId":88980,"corporation":false,"usgs":true,"family":"DeLong","given":"K.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":461197,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Richey, J.N.","contributorId":37156,"corporation":false,"usgs":true,"family":"Richey","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":461195,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Quinn, T. M.","contributorId":71320,"corporation":false,"usgs":true,"family":"Quinn","given":"T.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":461196,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037372,"text":"70037372 - 2009 - Fast forward modeling of Titan's infrared spectra to invert VIMS/Cassini hyperspectral images","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037372","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Fast forward modeling of Titan's infrared spectra to invert VIMS/Cassini hyperspectral images","docAbstract":"The surface of Titan, the largest icy moon of Saturn, is veiled by a very thick and hazy atmosphere. The Visual and Infrared Mapping Spectrometer onboard the Cassini spacecraft, in orbit around Saturn since July 2004, conduct an intensive survey of Titan with the objective to understand the complex nature of the atmosphere and surface of the mysterious moon and the way they interact. Accurate radiative transfer modeling is necessary to analyze Titan's infrared spectra, but are often very computer resources demanding. As Cassini has gathered hitherto millions of spectra of Titan and will still observe it until at least 2010, we report here on the development of a new rapid, simple and versatile radiative transfer model specially designed to invert VIMS datacubes. ?? 2009 IEEE.","largerWorkTitle":"WHISPERS '09 - 1st Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing","conferenceTitle":"WHISPERS '09 - 1st Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing","conferenceDate":"26 August 2009 through 28 August 2009","conferenceLocation":"Grenoble","language":"English","doi":"10.1109/WHISPERS.2009.5289065","isbn":"9781424446872","usgsCitation":"Rodriguez, S., Le Mouélic, S., Rannou, P., Combe, J.#., Corre, L., Tobie, G., Barnes, J.W., Sotin, C., Brown, R.H., Baines, K.H., Buratti, B.J., Clark, R.N., and Nicholson, P.D., 2009, Fast forward modeling of Titan's infrared spectra to invert VIMS/Cassini hyperspectral images, in WHISPERS '09 - 1st Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, Grenoble, 26 August 2009 through 28 August 2009, https://doi.org/10.1109/WHISPERS.2009.5289065.","costCenters":[],"links":[{"id":217204,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/WHISPERS.2009.5289065"},{"id":245131,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0efce4b0c8380cd536e5","contributors":{"authors":[{"text":"Rodriguez, S.","contributorId":54329,"corporation":false,"usgs":false,"family":"Rodriguez","given":"S.","email":"","affiliations":[],"preferred":false,"id":460732,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Le Mouélic, Stéphane","contributorId":99400,"corporation":false,"usgs":false,"family":"Le Mouélic","given":"Stéphane","affiliations":[],"preferred":false,"id":460737,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rannou, P.","contributorId":19761,"corporation":false,"usgs":true,"family":"Rannou","given":"P.","email":"","affiliations":[],"preferred":false,"id":460727,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Combe, J. #NAME?","contributorId":37982,"corporation":false,"usgs":false,"family":"Combe","given":"J.","email":"","middleInitial":"#NAME?","affiliations":[],"preferred":false,"id":460730,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Corre, L.L.","contributorId":73853,"corporation":false,"usgs":true,"family":"Corre","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":460735,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tobie, G.","contributorId":89267,"corporation":false,"usgs":true,"family":"Tobie","given":"G.","affiliations":[],"preferred":false,"id":460736,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Barnes, J. 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A traditional approach to quantifying metal loading has been to measure discharge and chemistry at a catchment outlet. This approach can quantify annual loading and the temporal changes in load, but does not provide the needed spatial detail to evaluate specific sources, which is needed to support remediation decisions. A catchment or mass-loading approach provides spatial detail by combining tracer-injection and synoptic-sampling methods to quantify loading. Examples of studies in American Fork, Utah, and its tributary Mary Ellen Gulch illustrate this different approach. The mass-loading study in American Fork treated Mary Ellen Gulch as a single inflow. From that point of view, Mary Ellen Gulch was one of the greatest sources of Fe, Mn, Zn, and colloidal Pb loads to American Fork. But when Mary Ellen Gulch was evaluated in a separate catchment study, the detailed locations of metal loading were identified, and the extent of metal attenuation upstream from the mouth of Mary Ellen Gulch was quantified. The net, instantaneous load measured at the mouth of Mary Ellen Gulch for remediation planning would greatly underestimate the contributions of principal sources within the catchment. Extending the detailed sampling downstream from Mary Ellen Gulch indicated the possibility of diffuse groundwater inflow from Mary Ellen Gulch to American Fork. Comparing loads for Mary Ellen Gulch in the two studies indicates that metal loads could be substantially underestimated for planning purposes without the detailed catchment approach for the low-flow conditions in these studies. A mass-loading approach provides both the needed quantification of metal loading and the spatial detail to guide remediation decisions that would be the most effective in the catchments.
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The approach decomposes large, intractable problems into smaller ones that are optimally solved; decomposes complex signals into behavioral components that are easier to model with \"sub- models\"; and employs a sequence of numerically optimizing algorithms that include time-series clustering, nonlinear, multivariate sensitivity analysis and predictive modeling using multi-layer perceptron artificial neural networks, and classification for selecting the best sub-models to make predictions at new sites. This approach has many advantages over traditional modeling approaches, including being faster and less expensive, more comprehensive in its use of available data, and more accurate in representing a system's physical processes. 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Additionally, conversion of interior wetlands to open water has increased the bay tidal prism, resulting in degradation of barrier islands due to inlet widening, formation of new inlets, and sediment sequestration at ebb-tidal deltas. Single-beam bathymetric surveys along a 165-km stretch of south-central Louisiana barrier coast, from Raccoon Point in Terrebonne Parish to Sandy Point in Plaquemines Parish, were conducted in 2006. These data, combined with historical bathymetry from three time periods (dating to the 1880s), provide a series of digital elevation models that were used to calculate sediment volumetric changes and determine long-term erosional-depositional trends. Dominant patterns during the 125-year period include (1) erosion of ???1.6????????109 m3 from the shoreface, forcing up to 3 km of shoreface retreat, (2) sediment deposition in coastal bights and at ebb-tidal deltas, and (3) a combined increase in tidal inlet cross-sectional area from ???41,400 m2 to ???139,500 m 2. Bathymetric and shoreline change datasets separated by shorter time periods (sub-annual) demonstrate that these long-term trends are driven by processes associated with major hurricane impacts, and that rates of shoreface erosion are an order of magnitude greater during active hurricane seasons compared to long-term trends. ?? 2009 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geo-Marine Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00367-009-0156-4","issn":"02760460","usgsCitation":"Miner, M., Kulp, M., FitzGerald, D.M., Flocks, J.G., and Weathers, H., 2009, Delta lobe degradation and hurricane impacts governing large-scale coastal behavior, South-central Louisiana, USA: Geo-Marine Letters, v. 29, no. 6, p. 441-453, https://doi.org/10.1007/s00367-009-0156-4.","startPage":"441","endPage":"453","numberOfPages":"13","costCenters":[],"links":[{"id":218541,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00367-009-0156-4"},{"id":246562,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"6","noUsgsAuthors":false,"publicationDate":"2009-08-27","publicationStatus":"PW","scienceBaseUri":"5059fe77e4b0c8380cd4ed3b","contributors":{"authors":[{"text":"Miner, M.D.","contributorId":56069,"corporation":false,"usgs":true,"family":"Miner","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":454115,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kulp, M.A.","contributorId":61138,"corporation":false,"usgs":true,"family":"Kulp","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":454116,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"FitzGerald, D. M.","contributorId":55038,"corporation":false,"usgs":true,"family":"FitzGerald","given":"D.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":454114,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Flocks, J. G.","contributorId":92309,"corporation":false,"usgs":true,"family":"Flocks","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":454118,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weathers, H.D.","contributorId":78975,"corporation":false,"usgs":true,"family":"Weathers","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":454117,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70032491,"text":"70032491 - 2009 - Major- and trace-element characterization, expanded distribution, and a new chronology for the latest Pleistocene Glacier Peak tephras in western North America","interactions":[],"lastModifiedDate":"2012-03-12T17:21:21","indexId":"70032491","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Major- and trace-element characterization, expanded distribution, and a new chronology for the latest Pleistocene Glacier Peak tephras in western North America","docAbstract":"The Glacier Peak tephra beds are among the most widespread and arguably some of the most important late Pleistocene chronostratigraphic markers in western North America. These beds represent a series of closely-spaced Plinian and sub-Plinian eruptions from Glacier Peak, Washington. The two most widespread beds, Glacier Peak 'G' and 'B', are reliably distinguished by their glass major and trace element abundances. These beds are also more broadly distributed than previously considered, covering at least 550,000 and 260,000??km2, respectively. A third bed, the Irvine bed, known only from southern Alberta, is similar in its major-element composition to the Glacier Peak G bed, but it shows considerable differences in trace element concentrations. The Irvine bed is likely considerably older than the G and B tephras and probably records an additional Plinian eruption, perhaps also from Glacier Peak but from a different magma than G through B. A review of the published radiocarbon ages, new ages in this study, and consideration in a Bayesian framework suggest that the widespread G and B beds are several hundred years older than widely assumed. Our revised age is about 11,600??14C yr BP or a calibrated age (at 2 sigma) of 13,710-13,410??cal yr BP. ?? 2008 University of Washington.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.yqres.2008.11.003","issn":"00335","usgsCitation":"Kuehn, S., Froese, D., Carrara, P., Foit, F., Pearce, N., and Rotheisler, P., 2009, Major- and trace-element characterization, expanded distribution, and a new chronology for the latest Pleistocene Glacier Peak tephras in western North America: Quaternary Research, v. 71, no. 2, p. 201-216, https://doi.org/10.1016/j.yqres.2008.11.003.","startPage":"201","endPage":"216","numberOfPages":"16","costCenters":[],"links":[{"id":213885,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.yqres.2008.11.003"},{"id":241552,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"2","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a4c27e4b0c8380cd69a46","contributors":{"authors":[{"text":"Kuehn, S.C.","contributorId":95701,"corporation":false,"usgs":true,"family":"Kuehn","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":436457,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Froese, D.G.","contributorId":41197,"corporation":false,"usgs":true,"family":"Froese","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":436454,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carrara, P. E.","contributorId":33727,"corporation":false,"usgs":true,"family":"Carrara","given":"P. E.","affiliations":[],"preferred":false,"id":436453,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Foit, F.F. Jr.","contributorId":77749,"corporation":false,"usgs":true,"family":"Foit","given":"F.F.","suffix":"Jr.","affiliations":[],"preferred":false,"id":436456,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pearce, N.J.G.","contributorId":75763,"corporation":false,"usgs":true,"family":"Pearce","given":"N.J.G.","email":"","affiliations":[],"preferred":false,"id":436455,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rotheisler, P.","contributorId":13448,"corporation":false,"usgs":true,"family":"Rotheisler","given":"P.","email":"","affiliations":[],"preferred":false,"id":436452,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70033038,"text":"70033038 - 2009 - Associations between land use and Perkinsus marinus infection of eastern oysters in a high salinity, partially urbanized estuary","interactions":[],"lastModifiedDate":"2014-08-05T13:19:02","indexId":"70033038","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1479,"text":"Ecotoxicology","active":true,"publicationSubtype":{"id":10}},"title":"Associations between land use and Perkinsus marinus infection of eastern oysters in a high salinity, partially urbanized estuary","docAbstract":"Infection levels of eastern oysters by the unicellular pathogen Perkinsus marinus have been associated with anthropogenic influences in laboratory studies. However, these relationships have been difficult to investigate in the field because anthropogenic inputs are often associated with natural influences such as freshwater inflow, which can also affect infection levels. We addressed P. marinus-land use associations using field-collected data from Murrells Inlet, South Carolina, USA, a developed, coastal estuary with relatively minor freshwater inputs. Ten oysters from each of 30 reefs were sampled quarterly in each of 2 years. Distances to nearest urbanized land class and to nearest stormwater outfall were measured via both tidal creeks and an elaboration of Euclidean distance. As the forms of any associations between oyster infection and distance to urbanization were unknown a priori, we used data from the first and second years of the study as exploratory and confirmatory datasets, respectively. With one exception, quarterly land use associations identified using the exploratory dataset were not confirmed using the confirmatory dataset. The exception was an association between the prevalence of moderate to high infection levels in winter and decreasing distance to nearest urban land use. Given that the study design appeared adequate to detect effects inferred from the exploratory dataset, these results suggest that effects of land use gradients were largely insubstantial or were ephemeral with duration less than 3 months.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecotoxicology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/s10646-008-0279-9","issn":"09639","usgsCitation":"Gray, B.R., Bushek, D., Drane, J.W., and Porter, D., 2009, Associations between land use and Perkinsus marinus infection of eastern oysters in a high salinity, partially urbanized estuary: Ecotoxicology, v. 18, no. 2, p. 259-269, https://doi.org/10.1007/s10646-008-0279-9.","productDescription":"11 p.","startPage":"259","endPage":"269","numberOfPages":"11","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":241081,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213455,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10646-008-0279-9"}],"volume":"18","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-11-18","publicationStatus":"PW","scienceBaseUri":"5059ee94e4b0c8380cd49e36","contributors":{"authors":[{"text":"Gray, Brian R. 0000-0001-7682-9550 brgray@usgs.gov","orcid":"https://orcid.org/0000-0001-7682-9550","contributorId":2615,"corporation":false,"usgs":true,"family":"Gray","given":"Brian","email":"brgray@usgs.gov","middleInitial":"R.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":439073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bushek, David","contributorId":23766,"corporation":false,"usgs":true,"family":"Bushek","given":"David","affiliations":[],"preferred":false,"id":439075,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Drane, J. Wanzer","contributorId":90943,"corporation":false,"usgs":true,"family":"Drane","given":"J.","email":"","middleInitial":"Wanzer","affiliations":[],"preferred":false,"id":439076,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Porter, Dwayne","contributorId":7506,"corporation":false,"usgs":true,"family":"Porter","given":"Dwayne","email":"","affiliations":[],"preferred":false,"id":439074,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032842,"text":"70032842 - 2009 - Rapid detection of Escherichia coli and enterococci in recreational water using an immunomagnetic separation/adenosine triphosphate technique","interactions":[],"lastModifiedDate":"2012-03-12T17:21:23","indexId":"70032842","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2169,"text":"Journal of Applied Microbiology","active":true,"publicationSubtype":{"id":10}},"title":"Rapid detection of Escherichia coli and enterococci in recreational water using an immunomagnetic separation/adenosine triphosphate technique","docAbstract":"Aims: The aim of this study was to examine a rapid method for detecting Escherichia coli and enterococci in recreational water. Methods and Results: Water samples were assayed for E. coli and enterococci by traditional and immunomagnetic separation/adenosine triphosphate (IMS/ATP) methods. Three sample treatments were evaluated for the IMS/ATP method: double filtration, single filtration, and direct analysis. Pearson's correlation analysis showed strong, significant, linear relations between IMS/ATP and traditional methods for all sample treatments; strongest linear correlations were with the direct analysis (r = 0.62 and 0.77 for E. coli and enterococci, respectively). Additionally, simple linear regression was used to estimate bacteria concentrations as a function of IMS/ATP results. The correct classification of water-quality criteria was 67% for E. coli and 80% for enterococci. Conclusions: The IMS/ATP method is a viable alternative to traditional methods for faecal-indicator bacteria. Significance and Impact of the Study: The IMS/ATP method addresses critical public health needs for the rapid detection of faecal-indicator contamination and has potential for satisfying US legislative mandates requiring methods to detect bathing water contamination in 2 h or less. Moreover, IMS/ATP equipment is considerably less costly and more portable than that for molecular methods, making the method suitable for field applications. ?? 2009 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Microbiology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2672.2008.04011.x","issn":"13645","usgsCitation":"Bushon, R., Brady, A., Likirdopulos, C., and Cireddu, J., 2009, Rapid detection of Escherichia coli and enterococci in recreational water using an immunomagnetic separation/adenosine triphosphate technique: Journal of Applied Microbiology, v. 106, no. 2, p. 432-441, https://doi.org/10.1111/j.1365-2672.2008.04011.x.","startPage":"432","endPage":"441","numberOfPages":"10","costCenters":[],"links":[{"id":213960,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2672.2008.04011.x"},{"id":241637,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"106","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a94cde4b0c8380cd81614","contributors":{"authors":[{"text":"Bushon, R.N.","contributorId":68086,"corporation":false,"usgs":true,"family":"Bushon","given":"R.N.","affiliations":[],"preferred":false,"id":438200,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brady, A.M.","contributorId":13819,"corporation":false,"usgs":true,"family":"Brady","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":438198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Likirdopulos, C.A.","contributorId":6265,"corporation":false,"usgs":true,"family":"Likirdopulos","given":"C.A.","affiliations":[],"preferred":false,"id":438197,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cireddu, J.V.","contributorId":55653,"corporation":false,"usgs":true,"family":"Cireddu","given":"J.V.","email":"","affiliations":[],"preferred":false,"id":438199,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70176163,"text":"70176163 - 2009 - Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin","interactions":[{"subject":{"id":70176163,"text":"70176163 - 2009 - Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin","indexId":"70176163","publicationYear":"2009","noYear":false,"title":"Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin"},"predicate":"IS_PART_OF","object":{"id":97928,"text":"sir20095049 - 2009 - Planning for an uncertain future - Monitoring, integration, and adaptation","indexId":"sir20095049","publicationYear":"2009","noYear":false,"title":"Planning for an uncertain future - Monitoring, integration, and adaptation"},"id":1}],"isPartOf":{"id":97928,"text":"sir20095049 - 2009 - Planning for an uncertain future - Monitoring, integration, and adaptation","indexId":"sir20095049","publicationYear":"2009","noYear":false,"title":"Planning for an uncertain future - Monitoring, integration, and adaptation"},"lastModifiedDate":"2016-08-30T15:24:37","indexId":"70176163","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin","docAbstract":"A major focus of the U.S. Geological Survey’s Trout Lake Water, Energy, and Biogeochemical Budgets (WEBB) project is the development of a watershed model to allow predictions of hydrologic response to future conditions including land-use and climate change. The coupled groundwater/surface-water model GSFLOW was chosen for this purpose because it could easily incorporate an existing groundwater flow model and it provides for simulation of surface-water processes. The Trout Lake watershed in northern Wisconsin is underlain by a highly conductive outwash sand aquifer. In this area, streamflow is dominated by groundwater contributions; however, surface runoff occurs during intense rainfall periods and spring snowmelt. Surface runoff also occurs locally near stream/lake areas where the unsaturated zone is thin. A diverse data set, collected from 1992 to 2007 for the Trout Lake WEBB project and the co-located and NSF-funded North Temperate Lakes LTER project, includes snowpack, solar radiation, potential evapotranspiration, lake levels, groundwater levels, and streamflow. The timeseries processing software TSPROC (Doherty 2003) was used to distill the large time series data set to a smaller set of observations and summary statistics that captured the salient hydrologic information. The timeseries processing reduced hundreds of thousands of observations to less than 5,000. Model calibration included specific predictions for several lakes in the study area using the PEST parameter estimation suite of software (Doherty 2007). The calibrated model was used to simulate the hydrologic response in the study lakes to a variety of climate change scenarios culled from the IPCC Fourth Assessment Report of the Intergovernmental Panel on Climate Change (Solomon et al. 2007). Results from the simulations indicate climate change could result in substantial changes to the lake levels and components of the hydrologic budget of a seepage lake in the flow system. For a drainage lake lower in the flow system, the impacts of climate change are diminished.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Planning for an uncertain future - Monitoring, integration, and adaptation (SIR2009-5049)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"Third interagency conference on research in the watersheds","conferenceDate":"September 8-11, 2008","conferenceLocation":"Estes Park, CO","language":"English","publisher":"U.S Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Walker, J.F., Hunt, R.J., Markstrom, S., Hay, L.E., and Doherty, J., 2009, Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin, in Planning for an uncertain future - Monitoring, integration, and adaptation (SIR2009-5049), Estes Park, CO, September 8-11, 2008, p. 155-161.","productDescription":"6 p.","startPage":"155","endPage":"161","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":328067,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":328066,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2009/5049/pdf/Walker.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c6b1b6e4b0f2f0cebe73c4","contributors":{"authors":[{"text":"Walker, John F. jfwalker@usgs.gov","contributorId":1081,"corporation":false,"usgs":true,"family":"Walker","given":"John","email":"jfwalker@usgs.gov","middleInitial":"F.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":647522,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hunt, Randall J. 0000-0001-6465-9304 rjhunt@usgs.gov","orcid":"https://orcid.org/0000-0001-6465-9304","contributorId":1129,"corporation":false,"usgs":true,"family":"Hunt","given":"Randall","email":"rjhunt@usgs.gov","middleInitial":"J.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":647523,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Markstrom, Steven L. 0000-0001-7630-9547 markstro@usgs.gov","orcid":"https://orcid.org/0000-0001-7630-9547","contributorId":1986,"corporation":false,"usgs":true,"family":"Markstrom","given":"Steven L.","email":"markstro@usgs.gov","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":647524,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hay, Lauren E. 0000-0003-3763-4595 lhay@usgs.gov","orcid":"https://orcid.org/0000-0003-3763-4595","contributorId":1287,"corporation":false,"usgs":true,"family":"Hay","given":"Lauren","email":"lhay@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":647525,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Doherty, John","contributorId":43843,"corporation":false,"usgs":true,"family":"Doherty","given":"John","affiliations":[],"preferred":false,"id":647526,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70033777,"text":"70033777 - 2009 - Allogenic sedimentary components of Bear Lake, Utah and Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:21:30","indexId":"70033777","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Allogenic sedimentary components of Bear Lake, Utah and Idaho","docAbstract":"Bear Lake is a long-lived lake filling a tectonic depression between the Bear River Range to the west and the Bear River Plateau to the east, and straddling the border between Utah and Idaho. Mineralogy, elemental geochemistry, and magnetic properties provide information about variations in provenance of allogenic lithic material in last-glacial-age, quartz-rich sediment in Bear Lake. Grain-size data from the siliciclastic fraction of late-glacial to Holocene carbonate-rich sediments provide information about variations in lake level. For the quartz-rich lower unit, which was deposited while the Bear River fl owed into and out of the lake, four source areas are recognized on the basis of modern fluvial samples with contrasting properties that reflect differences in bedrock geology and in magnetite content from dust. One of these areas is underlain by hematite-rich Uinta Mountain Group rocks in the headwaters of the Bear River. Although Uinta Mountain Group rocks make up a small fraction of the catchment, hematite-rich material from this area is an important component of the lower unit. This material is interpreted to be glacial fl our. Variations in the input of glacial flour are interpreted as having caused quasi-cyclical variations in mineralogical and elemental concentrations, and in magnetic properties within the lower unit. The carbonate-rich younger unit was deposited under conditions similar to those of the modern lake, with the Bear River largely bypassing the lake. For two cores taken in more than 30 m of water, median grain sizes in this unit range from ???6 ??m to more than 30 ??m, with the coarsest grain sizes associated with beach or shallow-water deposits. Similar grain-size variations are observed as a function of water depth in the modern lake and provide the basis for interpreting the core grain-size data in terms of lake level. Copyright ?? 2009 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2450(06)","issn":"00721077","usgsCitation":"Rosenbaum, J.G., Dean, W., Reynolds, R.L., and Reheis, M., 2009, Allogenic sedimentary components of Bear Lake, Utah and Idaho: Special Paper of the Geological Society of America, no. 450, p. 145-168, https://doi.org/10.1130/2009.2450(06).","startPage":"145","endPage":"168","numberOfPages":"24","costCenters":[],"links":[{"id":242132,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214409,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2450(06)"}],"issue":"450","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e96de4b0c8380cd4829a","contributors":{"authors":[{"text":"Rosenbaum, J. G.","contributorId":96685,"corporation":false,"usgs":true,"family":"Rosenbaum","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":442404,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dean, W.E.","contributorId":97099,"corporation":false,"usgs":true,"family":"Dean","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":442405,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reynolds, R. L. 0000-0002-4572-2942","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":79885,"corporation":false,"usgs":true,"family":"Reynolds","given":"R.","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":442403,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reheis, M.C. 0000-0002-8359-323X","orcid":"https://orcid.org/0000-0002-8359-323X","contributorId":36128,"corporation":false,"usgs":true,"family":"Reheis","given":"M.C.","affiliations":[],"preferred":false,"id":442402,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032841,"text":"70032841 - 2009 - Assessing the sources and magnitude of diurnal nitrate variability in the San Joaquin River (California) with an in situ optical nitrate sensor and dual nitrate isotopes","interactions":[],"lastModifiedDate":"2018-10-03T09:50:29","indexId":"70032841","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Assessing the sources and magnitude of diurnal nitrate variability in the San Joaquin River (California) with an in situ optical nitrate sensor and dual nitrate isotopes","docAbstract":"1. We investigated diurnal nitrate (NO3−) concentration variability in the San Joaquin River using an in situ optical NO3− sensor and discrete sampling during a 5‐day summer period characterized by high algal productivity. Dual NO3− isotopes (δ15NNO3 and δ18ONO3) and dissolved oxygen isotopes (δ18ODO) were measured over 2 days to assess NO3− sources and biogeochemical controls over diurnal time‐scales.
2. Concerted temporal patterns of dissolved oxygen (DO) concentrations and δ18ODOwere consistent with photosynthesis, respiration and atmospheric O2 exchange, providing evidence of diurnal biological processes independent of river discharge.
3. Surface water NO3− concentrations varied by up to 22% over a single diurnal cycle and up to 31% over the 5‐day study, but did not reveal concerted diurnal patterns at a frequency comparable to DO concentrations. The decoupling of δ15NNO3 and δ18ONO3isotopes suggests that algal assimilation and denitrification are not major processes controlling diurnal NO3− variability in the San Joaquin River during the study. The lack of a clear explanation for NO3− variability likely reflects a combination of riverine biological processes and time‐varying physical transport of NO3− from upstream agricultural drains to the mainstem San Joaquin River.
4. The application of an in situ optical NO3− sensor along with discrete samples provides a view into the fine temporal structure of hydrochemical data and may allow for greater accuracy in pollution assessment.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2427.2008.02111.x","issn":"00465","usgsCitation":"Pellerin, B.A., Downing, B.D., Kendall, C., Dahlgren, R., Kraus, T.E., Saraceno, J., Spencer, R., and Bergamaschi, B., 2009, Assessing the sources and magnitude of diurnal nitrate variability in the San Joaquin River (California) with an in situ optical nitrate sensor and dual nitrate isotopes: Freshwater Biology, v. 54, no. 2, p. 376-387, https://doi.org/10.1111/j.1365-2427.2008.02111.x.","productDescription":"12 p.","startPage":"376","endPage":"387","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241636,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213959,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2008.02111.x"}],"volume":"54","issue":"2","noUsgsAuthors":false,"publicationDate":"2009-01-12","publicationStatus":"PW","scienceBaseUri":"5059edf0e4b0c8380cd49b0b","contributors":{"authors":[{"text":"Pellerin, Brian A. bpeller@usgs.gov","contributorId":1451,"corporation":false,"usgs":true,"family":"Pellerin","given":"Brian","email":"bpeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":438196,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Downing, Bryan D. 0000-0002-2007-5304 bdowning@usgs.gov","orcid":"https://orcid.org/0000-0002-2007-5304","contributorId":1449,"corporation":false,"usgs":true,"family":"Downing","given":"Bryan","email":"bdowning@usgs.gov","middleInitial":"D.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":438195,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":438192,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dahlgren, Randy A.","contributorId":48630,"corporation":false,"usgs":true,"family":"Dahlgren","given":"Randy A.","affiliations":[],"preferred":false,"id":438191,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kraus, Tamara E.C. 0000-0002-5187-8644 tkraus@usgs.gov","orcid":"https://orcid.org/0000-0002-5187-8644","contributorId":1452,"corporation":false,"usgs":true,"family":"Kraus","given":"Tamara","email":"tkraus@usgs.gov","middleInitial":"E.C.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":438189,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Saraceno, John Franco 0000-0003-0064-1820","orcid":"https://orcid.org/0000-0003-0064-1820","contributorId":71686,"corporation":false,"usgs":true,"family":"Saraceno","given":"John Franco","affiliations":[],"preferred":false,"id":438194,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Spencer, Robert G. M.","contributorId":28866,"corporation":false,"usgs":true,"family":"Spencer","given":"Robert G. M.","affiliations":[],"preferred":false,"id":438193,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bergamaschi, Brian A. 0000-0002-9610-5581 bbergama@usgs.gov","orcid":"https://orcid.org/0000-0002-9610-5581","contributorId":1448,"corporation":false,"usgs":true,"family":"Bergamaschi","given":"Brian A.","email":"bbergama@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":438190,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70176168,"text":"70176168 - 2009 - Facilitating adaptive management in the Chesapeake Bay Watershed through the use of online decision support tools","interactions":[{"subject":{"id":70176168,"text":"70176168 - 2009 - Facilitating adaptive management in the Chesapeake Bay Watershed through the use of online decision support tools","indexId":"70176168","publicationYear":"2009","noYear":false,"title":"Facilitating adaptive management in the Chesapeake Bay Watershed through the use of online decision support tools"},"predicate":"IS_PART_OF","object":{"id":97928,"text":"sir20095049 - 2009 - Planning for an uncertain future - Monitoring, integration, and adaptation","indexId":"sir20095049","publicationYear":"2009","noYear":false,"title":"Planning for an uncertain future - Monitoring, integration, and adaptation"},"id":1}],"isPartOf":{"id":97928,"text":"sir20095049 - 2009 - Planning for an uncertain future - Monitoring, integration, and adaptation","indexId":"sir20095049","publicationYear":"2009","noYear":false,"title":"Planning for an uncertain future - Monitoring, integration, and adaptation"},"lastModifiedDate":"2016-08-30T16:05:07","indexId":"70176168","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Facilitating adaptive management in the Chesapeake Bay Watershed through the use of online decision support tools","docAbstract":"The Chesapeake Bay Program (CBP) is attempting to more strategically implement management actions to improve the health of the Nation’s largest estuary. In 2007 the U.S. Geological Survey (USGS) and U.S. Environmental Protection Agency (USEPA) CBP office began a joint effort to develop a suite of Internetaccessible decision-support tools and to help meet the needs of CBP partners to improve water quality and habitat conditions in the Chesapeake Bay and its watersheds. An adaptive management framework is being used to provide a structured decision process for information and individual tools needed to implement and assess practices to improve the condition of the Chesapeake Bay ecosystem. The Chesapeake Online Adaptive Support Toolkit (COAST) is a collection of web-based analytical tools and information, organized in an adaptive management framework, intended to aid decisionmakers in protecting and restoring the integrity of the Bay ecosystem. The initial version of COAST is focused on water quality issues. During early and mid- 2008, initial ideas for COAST were shared and discussed with various CBP partners and other potential user groups. At these meetings, test cases were selected to help improve understanding of the types of information and analytical functionality that would be most useful for specific partners’ needs. These discussions added considerable knowledge about the nature of decisionmaking for Federal, State, local and nongovernmental partners. Version 1.0 of COAST, released in early winter of 2008, will be further reviewed to determine improvements needed to address implementation and assessment of water quality practices. Future versions of COAST may address other aspects of ecosystem restoration, including restoration of habitat and living resources and maintaining watershed health.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Planning for an uncertain future - Monitoring, integration, and adaptation (SIR 2009-5049)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"Third interagency conference on research in the watersheds","conferenceDate":"September 8-11, 2008","conferenceLocation":"Estes Park, CO","language":"English","publisher":"U.S Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Mullinx, C., Phillips, S., Shenk, K., Hearn, P., and Devereux, O., 2009, Facilitating adaptive management in the Chesapeake Bay Watershed through the use of online decision support tools, in Planning for an uncertain future - Monitoring, integration, and adaptation (SIR 2009-5049), Estes Park, CO, September 8-11, 2008, p. 213-217.","productDescription":"5 p.","startPage":"213","endPage":"217","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true}],"links":[{"id":328077,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":328076,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2009/5049/pdf/Mullinix.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c6af4de4b0f2f0cebe4ba9","contributors":{"authors":[{"text":"Mullinx, Cassandra","contributorId":174150,"corporation":false,"usgs":false,"family":"Mullinx","given":"Cassandra","email":"","affiliations":[],"preferred":false,"id":647548,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phillips, Scott swphilli@usgs.gov","contributorId":3515,"corporation":false,"usgs":true,"family":"Phillips","given":"Scott","email":"swphilli@usgs.gov","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":false,"id":647549,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shenk, Kelly","contributorId":174151,"corporation":false,"usgs":false,"family":"Shenk","given":"Kelly","email":"","affiliations":[],"preferred":false,"id":647550,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hearn, Paul","contributorId":28702,"corporation":false,"usgs":true,"family":"Hearn","given":"Paul","affiliations":[],"preferred":false,"id":647551,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Devereux, Olivia 0000-0002-3911-3307","orcid":"https://orcid.org/0000-0002-3911-3307","contributorId":174152,"corporation":false,"usgs":false,"family":"Devereux","given":"Olivia","email":"","affiliations":[{"id":61674,"text":"Devereux Consulting, Inc","active":true,"usgs":false}],"preferred":false,"id":647552,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70033798,"text":"70033798 - 2009 - Coastal ocean transport patterns in the central Southern California Bight","interactions":[],"lastModifiedDate":"2012-03-12T17:21:31","indexId":"70033798","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Coastal ocean transport patterns in the central Southern California Bight","docAbstract":"In the past decade, several large programs that monitor currents and transport patterns for periods from a few months to a few years were conducted by a consortium of university, federal, state, and municipal agencies in the central Southern California Bight, a heavily urbanized section of the coastal ocean off the west coast of the United States encompassing Santa Monica Bay, San Pedro Bay, and the Palos Verdes shelf. These programs were designed in part to determine how alongshelf and cross-shelf currents move sediments, pollutants, and suspended material through the region. Analysis of the data sets showed that the current patterns in this portion of the Bight have distinct changes in frequency and amplitude with location, in part because the topography of the shelf and upper slope varies rapidly over small spatial scales. However, because the mean, subtidal, and tidal-current patterns in any particular location were reasonably stable with time, one could determine a regional pattern for these current fields in the central Southern California Bight even though measurements at the various locations were obtained at different times. In particular, because the mean near-surface flows over the San Pedro and Palos Verdes shelves are divergent, near-surface waters from the upper slope tend to carry suspended material onto the shelf in the northwestern portion of San Pedro Bay. Water and suspended material are also carried off the shelf by the mean and subtidal flow fields in places where the orientation of the shelf break changes abruptly. The barotropic tidal currents in the central Southern California Bight flow primarily alongshore, but they have pronounced amplitude variations over relatively small changes in alongshelf location that are not totally predicted by numerical tidal models. Nonlinear internal tides and internal bores at tidal frequencies are oriented more across the shelf. They do not have a uniform transport direction, since they move fine sediment from the shelf to the slope in Santa Monica Bay, but carry suspended material from the mid-shelf to the beach in San Pedro Bay. It is clear that there are a large variety of processes that transport sediments and contaminants along and across the shelf in the central Southern California Bight. However, because these processes have a variety of frequencies and relatively small spatial scales, the dominant transport processes tend to be localized and have dissimilar characteristics even in adjacent regions of this small part of the coastal ocean. ?? 2009 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2454(3.3)","issn":"00721077","usgsCitation":"Noble, M., Rosenberger, K., Hamilton, P., and Xu, J.P., 2009, Coastal ocean transport patterns in the central Southern California Bight: Special Paper of the Geological Society of America, no. 454, p. 193-226, https://doi.org/10.1130/2009.2454(3.3).","startPage":"193","endPage":"226","numberOfPages":"34","costCenters":[],"links":[{"id":214235,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2454(3.3)"},{"id":241935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"454","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f786e4b0c8380cd4cb7f","contributors":{"authors":[{"text":"Noble, M.A.","contributorId":93513,"corporation":false,"usgs":true,"family":"Noble","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":442520,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenberger, K.J.","contributorId":82141,"corporation":false,"usgs":true,"family":"Rosenberger","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":442519,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamilton, P.","contributorId":42034,"corporation":false,"usgs":true,"family":"Hamilton","given":"P.","affiliations":[],"preferred":false,"id":442517,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Xu, J. P.","contributorId":74528,"corporation":false,"usgs":true,"family":"Xu","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":442518,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032851,"text":"70032851 - 2009 - Long-term survival despite low genetic diversity in the critically endangered Madagascar fish-eagle","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70032851","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2774,"text":"Molecular Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Long-term survival despite low genetic diversity in the critically endangered Madagascar fish-eagle","docAbstract":"The critically endangered Madagascar fish-eagle (Haliaeetus vociferoides) is considered to be one of the rarest birds of prey globally and at significant risk of extinction. In the most recent census, only 222 adult individuals were recorded with an estimated total breeding population of no more than 100-120 pairs. Here, levels of Madagascar fish-eagle population genetic diversity based on 47 microsatellite loci were compared with its sister species, the African fish-eagle (Haliaeetus vocifer), and 16 of these loci were also characterized in the white-tailed eagle (Haliaeetus albicilla) and the bald eagle (Haliaeetus leucocephalus). Overall, extremely low genetic diversity was observed in the Madagascar fish-eagle compared to other surveyed Haliaeetus species. Determining whether this low diversity is the result of a recent bottleneck or a more historic event has important implications for their conservation. Using a Bayesian coalescent-based method, we show that Madagascar fish-eagles have maintained a small effective population size for hundreds to thousands of years and that its low level of neutral genetic diversity is not the result of a recent bottleneck. Therefore, efforts made to prevent Madagascar fish-eagle extinction should place high priority on maintenance of habitat requirements and reducing direct and indirect human persecution. Given the current rate of deforestation in Madagascar, we further recommend that the population be expanded to occupy a larger geographical distribution. This will help the population persist when exposed to stochastic factors (e.g. climate and disease) that may threaten a species consisting of only 200 adult individuals while inhabiting a rapidly changing landscape. ?? 2008 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-294X.2008.04012.x","issn":"09621","usgsCitation":"Johnson, J.A., Tingay, R., Culver, M., Hailer, F., Clarke, M., and Mindell, D., 2009, Long-term survival despite low genetic diversity in the critically endangered Madagascar fish-eagle: Molecular Ecology, v. 18, no. 1, p. 54-63, https://doi.org/10.1111/j.1365-294X.2008.04012.x.","startPage":"54","endPage":"63","numberOfPages":"10","costCenters":[],"links":[{"id":241779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214090,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-294X.2008.04012.x"}],"volume":"18","issue":"1","noUsgsAuthors":false,"publicationDate":"2008-12-22","publicationStatus":"PW","scienceBaseUri":"505a49a9e4b0c8380cd687bd","contributors":{"authors":[{"text":"Johnson, J. A.","contributorId":88375,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":438229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tingay, R.E.","contributorId":21765,"corporation":false,"usgs":true,"family":"Tingay","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":438226,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Culver, M.","contributorId":92462,"corporation":false,"usgs":true,"family":"Culver","given":"M.","email":"","affiliations":[],"preferred":false,"id":438230,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hailer, F.","contributorId":49184,"corporation":false,"usgs":true,"family":"Hailer","given":"F.","email":"","affiliations":[],"preferred":false,"id":438227,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clarke, M.L.","contributorId":101086,"corporation":false,"usgs":true,"family":"Clarke","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":438231,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mindell, D.P.","contributorId":67187,"corporation":false,"usgs":true,"family":"Mindell","given":"D.P.","affiliations":[],"preferred":false,"id":438228,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ]}