The relationship between local ground water flows and NO3− transport to the channel was examined in three well transects from a natural, wooded riparian zone adjacent to the Shingobee River, MN. The hillslope ground water originated as recharge from intermittently grazed pasture up slope of the site. In the hillslope transect perpendicular to the stream, ground water NO3− concentrations decreased from ∼3 mg N L−1 beneath the ridge (80 m from the channel) to 0.01 to 1.0 mg N L−1 at wells 1 to 3 m from the channel. The Cl− concentrations and NO3/Cl ratios decreased toward the channel indicating NO3− dilution and biotic retention. In the bankside well transect parallel to the stream, two distinct ground water environments were observed: an alluvial environment upstream of a relict beaver dam influenced by stream water and a hillslope environment downstream of the relict beaver dam. Nitrate was elevated to levels representative of agricultural runoff in a third well transect located ∼5 m from the stream to assess the effectiveness of the riparian zone as a NO3− sink. Subsurface NO3− injections revealed transport of up to 15 mg N L−1 was nearly conservative in the alluvial riparian environment. Addition of glucose stimulated dissolved oxygen uptake and promoted NO3− retention under both background and elevated NO3− levels in summer and winter. Disappearance of added NO3− was followed by transient NO2− formation and, in the presence of C2H2, by N2O formation, demonstrating potential denitrification. Under current land use, most NO3− associated with local ground water is biotically retained or diluted before reaching the channel. However, elevating NO3− levels through agricultural cultivation would likely result in increased NO3− transport to the channel.
","language":"English","publisher":"Wiley","doi":"10.2134/jeq2006.0019","issn":"00472425","usgsCitation":"Duff, J., Jackman, A.P., Triska, F., Sheibley, R., and Avanzino, R., 2007, Nitrate retention in riparian ground water at natural and elevated nitrate levels in North Central Minnesota: Journal of Environmental Quality, v. 36, no. 2, p. 343-353, https://doi.org/10.2134/jeq2006.0019.","productDescription":"11 p.","startPage":"343","endPage":"353","numberOfPages":"11","costCenters":[],"links":[{"id":242654,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -95.04098355965877,\n 47.16920731114888\n ],\n [\n -95.04098355965877,\n 46.842187352721595\n ],\n [\n -94.43040152655558,\n 46.842187352721595\n ],\n [\n -94.43040152655558,\n 47.16920731114888\n ],\n [\n -95.04098355965877,\n 47.16920731114888\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"36","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a66afe4b0c8380cd72f11","contributors":{"authors":[{"text":"Duff, J.H.","contributorId":60377,"corporation":false,"usgs":true,"family":"Duff","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":433635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jackman, A. P.","contributorId":46957,"corporation":false,"usgs":true,"family":"Jackman","given":"A.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":433634,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Triska, F.J.","contributorId":69560,"corporation":false,"usgs":true,"family":"Triska","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":433636,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sheibley, R.W. 0000-0003-1627-8536 sheibley@usgs.gov","orcid":"https://orcid.org/0000-0003-1627-8536","contributorId":43066,"corporation":false,"usgs":true,"family":"Sheibley","given":"R.W.","email":"sheibley@usgs.gov","affiliations":[],"preferred":false,"id":433633,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Avanzino, R.J.","contributorId":37336,"corporation":false,"usgs":true,"family":"Avanzino","given":"R.J.","affiliations":[],"preferred":false,"id":433632,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031870,"text":"70031870 - 2007 - Uncertainty in age-specific harvest estimates and consequences for white-tailed deer management","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70031870","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Uncertainty in age-specific harvest estimates and consequences for white-tailed deer management","docAbstract":"Age structure proportions (proportion of harvested individuals within each age class) are commonly used as support for regulatory restrictions and input for deer population models. Such use requires critical evaluation when harvest regulations force hunters to selectively harvest specific age classes, due to impact on the underlying population age structure. We used a stochastic population simulation model to evaluate the impact of using harvest proportions to evaluate changes in population age structure under a selective harvest management program at two scales. Using harvest proportions to parameterize the age-specific harvest segment of the model for the local scale showed that predictions of post-harvest age structure did not vary dependent upon whether selective harvest criteria were in use or not. At the county scale, yearling frequency in the post-harvest population increased, but model predictions indicated that post-harvest population size of 2.5 years old males would decline below levels found before implementation of the antler restriction, reducing the number of individuals recruited into older age classes. Across the range of age-specific harvest rates modeled, our simulation predicted that underestimation of age-specific harvest rates has considerable influence on predictions of post-harvest population age structure. We found that the consequence of uncertainty in harvest rates corresponds to uncertainty in predictions of residual population structure, and this correspondence is proportional to scale. Our simulations also indicate that regardless of use of harvest proportions or harvest rates, at either the local or county scale the modeled SHC had a high probability (>0.60 and >0.75, respectively) of eliminating recruitment into >2.5 years old age classes. Although frequently used to increase population age structure, our modeling indicated that selective harvest criteria can decrease or eliminate the number of white-tailed deer recruited into older age classes. Thus, we suggest that using harvest proportions for management planning and evaluation should be viewed with caution. In addition, we recommend that managers focus more attention on estimation of age-specific harvest rates, and modeling approaches which combine harvest rates with information from harvested individuals to further increase their ability to effectively manage deer populations under selective harvest programs. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Modelling","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecolmodel.2006.09.017","issn":"03043800","usgsCitation":"Collier, B., and Krementz, D., 2007, Uncertainty in age-specific harvest estimates and consequences for white-tailed deer management: Ecological Modelling, v. 201, no. 2, p. 194-204, https://doi.org/10.1016/j.ecolmodel.2006.09.017.","startPage":"194","endPage":"204","numberOfPages":"11","costCenters":[],"links":[{"id":215046,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecolmodel.2006.09.017"},{"id":242815,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"201","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbc21e4b08c986b328a4f","contributors":{"authors":[{"text":"Collier, B.A.","contributorId":107121,"corporation":false,"usgs":true,"family":"Collier","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":433513,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krementz, D.G.","contributorId":74332,"corporation":false,"usgs":true,"family":"Krementz","given":"D.G.","affiliations":[],"preferred":false,"id":433512,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031869,"text":"70031869 - 2007 - Characteristics of roost sites used by burrowing owls (Athene cunicularia) wintering in Southern Texas","interactions":[],"lastModifiedDate":"2016-06-03T15:36:22","indexId":"70031869","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3451,"text":"Southwestern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Characteristics of roost sites used by burrowing owls (Athene cunicularia) wintering in Southern Texas","docAbstract":"The western burrowing owl (Athene cunicularia hypugaea) is threatened in Mexico, endangered in Canada, and declining in most of the western United States. Most previous research has focused on burrowing owl breeding biology, and little is known about its winter ecology. We determined characteristics of roost sites used by western burrowing owls in southern Texas during winter. Data on 46 winter roost sites were collected from 15 November 2001 to 15 February 2002. Of these roost sites, 87% were located on agricultural land, 80% were along roads, and 74% were concrete, steel, or cast-iron culverts. Mean diameter (??SE) of roost site openings was 22 ?? 1.5 cm. Most roost sites (70%) were located on inaccessible private lands. Bare ground comprised 61% of ground cover within a 10-m radius of roost sites. We recommend that landowners and public-land managers should be encouraged to use smaller-diameter culverts when building roads or replacing old or damaged culverts and to graze livestock or mow around these culverts during winter.
","language":"English","publisher":"Bioone","doi":"10.1894/0038-4909(2007)52[60:CORSUB]2.0.CO;2","issn":"00384909","usgsCitation":"Williford, D., Woodin, M., Skoruppa, M., and Hickman, G., 2007, Characteristics of roost sites used by burrowing owls (Athene cunicularia) wintering in Southern Texas: Southwestern Naturalist, v. 52, no. 1, p. 60-66, https://doi.org/10.1894/0038-4909(2007)52[60:CORSUB]2.0.CO;2.","productDescription":"7 p.","startPage":"60","endPage":"66","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":242785,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215020,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1894/0038-4909(2007)52[60:CORSUB]2.0.CO;2"}],"country":"United States","state":"Texas","county":"Jim Wells, Kleberg, Nueces, Refugio, San Patricio","otherGeospatial":"Texas coastal bend of southern Texas","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -95.592041015625,\n 28.806173508854776\n ],\n [\n -96.52587890625,\n 29.252855985973763\n ],\n [\n -97.8607177734375,\n 28.57487404744697\n ],\n [\n -98.3551025390625,\n 27.97499795326776\n ],\n [\n -98.54187011718749,\n 27.11292342871368\n ],\n [\n -98.4759521484375,\n 26.667095801104814\n ],\n [\n -97.44873046875,\n 26.58361481358588\n ],\n [\n -95.592041015625,\n 28.806173508854776\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"52","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f49de4b0c8380cd4be08","contributors":{"authors":[{"text":"Williford, D.L.","contributorId":28870,"corporation":false,"usgs":true,"family":"Williford","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":433509,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woodin, M.C.","contributorId":97307,"corporation":false,"usgs":true,"family":"Woodin","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":433511,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Skoruppa, M.K.","contributorId":39189,"corporation":false,"usgs":true,"family":"Skoruppa","given":"M.K.","affiliations":[],"preferred":false,"id":433510,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hickman, G.C.","contributorId":15823,"corporation":false,"usgs":true,"family":"Hickman","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":433508,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031745,"text":"70031745 - 2007 - Spatial and temporal migration patterns of Wilson's Warbler (Wilsonia pusilla) in the southwest as revealed by stable isotopes","interactions":[],"lastModifiedDate":"2017-11-25T13:54:37","indexId":"70031745","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Spatial and temporal migration patterns of Wilson's Warbler (Wilsonia pusilla) in the southwest as revealed by stable isotopes","docAbstract":"We used stable hydrogen isotopes (δD) to identify the breeding locations of Wilson’s Warbler (Wilsonia pusilla) migrating through five sites spanning a cross-section of the species’ southwestern migration route during the springs of 2003 and 2004. Determining the temporal and spatial patterns of migration and degree of population segregation during migration is critical to understanding long-term population trends of migrant birds. At all five migration sites, we found a significant negative relationship between the date Wilson’s Warblers passed through the sampling station and δD values of their feathers. These data were consistent with a pattern of “leap-frog” migration, in which individuals that bred the previous season at southern latitudes migrated through migration stations earlier than individuals that had previously bred at more northern latitudes. We documented that this pattern was consistent across sites and in multiple years. This finding corroborates previous research conducted on Wilson’s Warbler during the fall migration. In addition, mean δD values became more negative across sampling stations from west to east, with the mean δD values at each station corresponding to different geographic regions of the Wilson’s Warblers’ western breeding range. These data indicate that Wilson’s Warblers passing through each station represented a specific regional subset of the entire Wilson’s Warbler western breeding range. As a result, habitat alterations at specific areas across the east-west expanse of the bird’s migratory route in the southwestern United States could differentially affect Wilson’s Warblers at different breeding areas. This migration information is critical for management of Neotropical migrants, especially in light of the rapid changes presently occurring over the southwestern landscape.
","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2007)124[162:SATMPO]2.0.CO;2","issn":"00048038","usgsCitation":"Paxton, K., van Riper, C., Theimer, T., and Paxton, E.H., 2007, Spatial and temporal migration patterns of Wilson's Warbler (Wilsonia pusilla) in the southwest as revealed by stable isotopes: The Auk, v. 124, no. 1, p. 162-175, https://doi.org/10.1642/0004-8038(2007)124[162:SATMPO]2.0.CO;2.","productDescription":"14 p.","startPage":"162","endPage":"175","costCenters":[],"links":[{"id":477143,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/0004-8038(2007)124[162:satmpo]2.0.co;2","text":"Publisher Index Page"},{"id":239775,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b943ce4b08c986b31a95a","contributors":{"authors":[{"text":"Paxton, K.L.","contributorId":78547,"corporation":false,"usgs":true,"family":"Paxton","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":432947,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"van Riper, Charles III 0000-0003-1084-5843 charles_van_riper@usgs.gov","orcid":"https://orcid.org/0000-0003-1084-5843","contributorId":169488,"corporation":false,"usgs":true,"family":"van Riper","given":"Charles","suffix":"III","email":"charles_van_riper@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":false,"id":432946,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Theimer, T.C.","contributorId":31580,"corporation":false,"usgs":true,"family":"Theimer","given":"T.C.","affiliations":[],"preferred":false,"id":432945,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Paxton, E. H.","contributorId":16798,"corporation":false,"usgs":true,"family":"Paxton","given":"E.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":432944,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031743,"text":"70031743 - 2007 - Chronology of Miocene-Pliocene deposits at Split Mountain Gorge, Southern California: A record of regional tectonics and Colorado River evolution","interactions":[],"lastModifiedDate":"2012-03-12T17:21:13","indexId":"70031743","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Chronology of Miocene-Pliocene deposits at Split Mountain Gorge, Southern California: A record of regional tectonics and Colorado River evolution","docAbstract":"Late Miocene to early Pliocene deposit at Split Mountain Gorge, California, preserve a record of basinal response to changes in regional tectonics, paleogeography, and evolution of the Colorado River. The base of the Elephant Trees Formation, magnetostratigraphically dated as 8.1 ?? 0.4 Ma, provides the earliest well-dated record of extension in the southwestern Salton Trough. The oldest marine sediments are ca. 6.3 Ma. The nearly synchronous timing of marine incursion in the Salton Trough and northern Gulf of California region supports a model for localization of Pacific-North America plate motion in the Gulf ca. 6 Ma. The first appearance of Colorado River sand at the Miocene-Pliocene boundary (5.33 Ma) suggests rapid propagation of the river to the Salton Trough, and supports a lake-spillover hypothesis for initiation of the lower Colorado River. ?? 2007 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/G23139A.1","issn":"00917613","usgsCitation":"Dorsey, R., Fluette, A., McDougall, K., Housen, B., Janecke, S.U., Axen, G., and Shirvell, C., 2007, Chronology of Miocene-Pliocene deposits at Split Mountain Gorge, Southern California: A record of regional tectonics and Colorado River evolution: Geology, v. 35, no. 1, p. 57-60, https://doi.org/10.1130/G23139A.1.","startPage":"57","endPage":"60","numberOfPages":"4","costCenters":[],"links":[{"id":239742,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212279,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G23139A.1"}],"volume":"35","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f5f6e4b0c8380cd4c4fc","contributors":{"authors":[{"text":"Dorsey, R.J.","contributorId":45115,"corporation":false,"usgs":true,"family":"Dorsey","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":432935,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fluette, A.","contributorId":15832,"corporation":false,"usgs":true,"family":"Fluette","given":"A.","email":"","affiliations":[],"preferred":false,"id":432932,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McDougall, K.","contributorId":106260,"corporation":false,"usgs":true,"family":"McDougall","given":"K.","email":"","affiliations":[],"preferred":false,"id":432937,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Housen, B.A.","contributorId":37958,"corporation":false,"usgs":true,"family":"Housen","given":"B.A.","affiliations":[],"preferred":false,"id":432933,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Janecke, S. U.","contributorId":42296,"corporation":false,"usgs":true,"family":"Janecke","given":"S.","email":"","middleInitial":"U.","affiliations":[],"preferred":false,"id":432934,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Axen, G.J.","contributorId":10052,"corporation":false,"usgs":true,"family":"Axen","given":"G.J.","affiliations":[],"preferred":false,"id":432931,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Shirvell, C.R.","contributorId":62830,"corporation":false,"usgs":true,"family":"Shirvell","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":432936,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70031741,"text":"70031741 - 2007 - The geology of asbestos in the United States and its practical applications","interactions":[],"lastModifiedDate":"2022-03-23T16:38:57.747672","indexId":"70031741","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1574,"text":"Environmental & Engineering Geoscience","printIssn":"1078-7275","active":true,"publicationSubtype":{"id":10}},"title":"The geology of asbestos in the United States and its practical applications","docAbstract":"Recently, naturally occurring asbestos (NOA) has drawn the attention of numerous health and regulatory agencies and citizen groups. NOA can be released airborne by (1) the disturbance of asbestos-bearing bedrocks through human activities or natural weathering, and (2) the mining and milling of some mineral deposits in which asbestos occurs as an accessory mineral(s). Because asbestos forms in specific rock types and geologic conditions, this information can be used to focus on areas with the potential to contain asbestos, rather than devoting effort to areas with minimal NOA potential. All asbestos minerals contain magnesium, silica, and water as essential constituents, and some also contain major iron and/or calcium. Predictably, the geologic environments that host asbestos are enriched in these components. Most asbestos deposits form by metasomatic replacement of magnesium-rich rocks. Asbestos-forming environments typically display shear or evidence for a significant influx of silica-rich hydrothermal fluids. Asbestos-forming processes can be driven by regional metamorphism, contact metamorphism, or magmatic hydrothermal systems. Thus, asbestos deposits of all sizes and styles are typically hosted by magnesium-rich rocks (often also iron-rich) that were altered by a metamorphic or magmatic process. Rock types known to host asbestos include serpentinites, altered ultramafic and some mafic rocks, dolomitic marbles and metamorphosed dolostones, metamorphosed iron formations, and alkalic intrusions and carbonatites. Other rock types appear unlikely to contain asbestos. These geologic insights can be used by the mining industry, regulators, land managers, and others to focus attention on the critical locales most likely to contain asbestos.","language":"English","publisher":"Association of Environmental and Engineering Geologists","doi":"10.2113/gseegeosci.13.1.55","usgsCitation":"Van Gosen, B.S., 2007, The geology of asbestos in the United States and its practical applications: Environmental & Engineering Geoscience, v. 13, no. 1, p. 55-68, https://doi.org/10.2113/gseegeosci.13.1.55.","productDescription":"14 p.","startPage":"55","endPage":"68","numberOfPages":"14","ipdsId":"IP-014447","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"links":[{"id":239677,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"geometry\": {\n 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S. 0000-0003-4214-3811","orcid":"https://orcid.org/0000-0003-4214-3811","contributorId":97907,"corporation":false,"usgs":true,"family":"Van Gosen","given":"B.","middleInitial":"S.","affiliations":[],"preferred":false,"id":432927,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70031738,"text":"70031738 - 2007 - Morphological variation of siscowet lake trout in Lake Superior","interactions":[],"lastModifiedDate":"2016-04-29T10:43:51","indexId":"70031738","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Morphological variation of siscowet lake trout in Lake Superior","docAbstract":"Historically, Lake Superior has contained many morphologically distinct forms of the lake trout Salvelinus namaycush that have occupied specific depths and locations and spawned at specific times of the year. Today, as was probably the case historically, the siscowet morphotype is the most abundant. Recent interest in harvesting siscowets to extract oil containing omega-3 fatty acids will require additional knowledge of the biology and stock structure of these lightly exploited populations. The objective of this study was to determine whether shape differences exist among siscowet populations across Lake Superior and whether these shape differences can be used to infer stock structure. Morphometric analysis (truss protocol) was used to differentiate among siscowets sampled from 23 locations in Lake Superior. We analyzed 31 distance measurements among 14 anatomical landmarks taken from digital images of fish recorded in the field. Cluster analysis of size-corrected data separated fish into three geographic groups: The Isle Royale, eastern (Michigan), and western regions (Michigan). Finer scales of stock structure were also suggested. Discriminant function analysis demonstrated that head measurements contributed to most of the observed variation. Cross-validation classification rates indicated that 67–71% of individual fish were correctly classified to their region of capture. This is the first study to present shape differences associated with location within a lake trout morphotype in Lake Superior.
","language":"English","publisher":"Taylor & Francis","doi":"10.1577/T06-098.1","issn":"00028487","usgsCitation":"Bronte, C., and Moore, S., 2007, Morphological variation of siscowet lake trout in Lake Superior: Transactions of the American Fisheries Society, v. 136, no. 2, p. 509-517, https://doi.org/10.1577/T06-098.1.","productDescription":"9 p.","startPage":"509","endPage":"517","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":240155,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212639,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T06-098.1"}],"volume":"136","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"505a5e46e4b0c8380cd70909","contributors":{"authors":[{"text":"Bronte, C.R.","contributorId":20100,"corporation":false,"usgs":true,"family":"Bronte","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":432919,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, S.A.","contributorId":103397,"corporation":false,"usgs":true,"family":"Moore","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":432920,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031733,"text":"70031733 - 2007 - Toward a transport-based analysis of nutrient spiraling and uptake in streams","interactions":[],"lastModifiedDate":"2023-12-07T16:44:26.266653","indexId":"70031733","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2622,"text":"Limnology and Oceanography: Methods","active":true,"publicationSubtype":{"id":10}},"title":"Toward a transport-based analysis of nutrient spiraling and uptake in streams","docAbstract":"Nutrient addition experiments are designed to study the cycling of nutrients in stream ecosystems where hydrologic and nonhydrologic processes determine nutrient fate. Because of the importance of hydrologic processes in stream ecosystems, a conceptual model known as nutrient spiraling is frequently employed. A central part of the nutrient spiraling approach is the determination of uptake length (Sw), the average distance traveled by dissolved nutrients in the water column before uptake. Although the nutrient spiraling concept has been an invaluable tool in stream ecology, the current practice of estimating uptake length from steady‐state nutrient data using linear regression (called here the “Sw approach”) presents a number of limitations. These limitations are identified by comparing the exponential Sw equation with analytical solutions of a stream solute transport model. This comparison indicates that (1) Sw is an aggregate measure of uptake that does not distinguish between main channel and storage zone processes, (2) Sw is an integrated measure of numerous hydrologic and nonhydrologic processes—this process integration may lead to difficulties in interpretation when comparing estimates of Sw, and (3) estimates of uptake velocity and areal uptake rate (vf and U) based on Sw are not independent of system hydrology. Given these findings, a transport‐based approach to nutrient spiraling is presented for steady‐state and time‐series data sets. The transport‐based approach for time‐series data sets is suggested for future research on nutrient uptake as it provides a number of benefits, including the ability to (1) separately quantify main channel and storage zone uptake, (2) quantify specific hydrologic and nonhydrologic processes using various model parameters (process separation), (3) estimate uptake velocities and areal uptake rates that are independent of hydrologic effects, and (4) use shortterm, non‐plateau nutrient additions such that the effects of regeneration and mineralization are minimized. In summary, the transport‐based, time‐series approach provides a means of estimating traditional measures of nutrient uptake (Sw, vf , U) while providing additional information on the location and magnitude of uptake (main channel versus storage zone). Application of the transport‐based approach to time‐series data from Green Creek, Antarctica, indicates that the bulk of nitrate uptake (~74% to 100%) occurred within the main channel where benthic uptake by algal mats is a likely process. Substantial uptake (~26%) also occurred in the storage zone of one reach, where uptake is attributed to the microbial community.
","language":"English","publisher":"ASLO","doi":"10.4319/lom.2007.5.50","usgsCitation":"Runkel, R.L., 2007, Toward a transport-based analysis of nutrient spiraling and uptake in streams: Limnology and Oceanography: Methods, v. 5, no. 1, p. 50-62, https://doi.org/10.4319/lom.2007.5.50.","productDescription":"13 p.","startPage":"50","endPage":"62","numberOfPages":"13","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240083,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-01-22","publicationStatus":"PW","scienceBaseUri":"505bb5b2e4b08c986b326834","contributors":{"authors":[{"text":"Runkel, Robert L. 0000-0003-3220-481X runkel@usgs.gov","orcid":"https://orcid.org/0000-0003-3220-481X","contributorId":685,"corporation":false,"usgs":true,"family":"Runkel","given":"Robert","email":"runkel@usgs.gov","middleInitial":"L.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":432902,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70031721,"text":"70031721 - 2007 - Northeast Kansas well tests oil, gas possibilities in Precambrian rocks","interactions":[],"lastModifiedDate":"2018-02-18T13:45:10","indexId":"70031721","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2941,"text":"Oil & Gas Journal","printIssn":"0030-1388","active":true,"publicationSubtype":{"id":10}},"title":"Northeast Kansas well tests oil, gas possibilities in Precambrian rocks","docAbstract":"Tests for oil and gas prospects in Precambrian rocks in Northeast Kansas is currently being undertaken by WTW Operating LLC. It drilled in late 2005 the no.1 Wilson well with a depth of 5,772ft, 1,826ft into the Precambrian basement on a venture testing the possibility of oil and gas in the crystalline rocks. The basin extends northeast into Nebraska and Iowa and is a shallow cratonic basin filled with Paleozoic segments. The rocks have been previously though as not a potential for oil and gas due to the rocks' crystalline and nonporous character with the exception of the Midcontinent rift system (MRS). Later, though, small quantities of oil have been produced on the Central Kansas uplift from granite wash while the wells also produced low-Btu with swabbing operations. The recovered gas contained considerable nonflammable components of nitrogen, carbon dioxide and helium which equates to a low btu content of 283.","language":"English","publisher":"PennWell Corporation","publisherLocation":"Tulsa, OK","usgsCitation":"Merriam, D.F., Newell, K., Doveton, J., Magnuson, L., Lollar, B., and Waggoner, W., 2007, Northeast Kansas well tests oil, gas possibilities in Precambrian rocks: Oil & Gas Journal, v. 105, no. 35, p. 54-58.","productDescription":"5 p.","startPage":"54","endPage":"58","costCenters":[],"links":[{"id":239875,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":351771,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.ogj.com/articles/print/volume-105/issue-35/exploration-development/northeast-kansas-well-tests-oil-gas-possibilities-in-precambrian-rocks.html"}],"country":"United States","state":"Kansas","volume":"105","issue":"35","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a682ce4b0c8380cd73659","contributors":{"authors":[{"text":"Merriam, D. F.","contributorId":63175,"corporation":false,"usgs":true,"family":"Merriam","given":"D.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":432855,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Newell, K.D.","contributorId":76473,"corporation":false,"usgs":true,"family":"Newell","given":"K.D.","email":"","affiliations":[],"preferred":false,"id":432856,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doveton, J.H.","contributorId":30237,"corporation":false,"usgs":true,"family":"Doveton","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":432854,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Magnuson, L.M.","contributorId":16974,"corporation":false,"usgs":true,"family":"Magnuson","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":432852,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lollar, B.S.","contributorId":24532,"corporation":false,"usgs":true,"family":"Lollar","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":432853,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Waggoner, W.M.","contributorId":6666,"corporation":false,"usgs":true,"family":"Waggoner","given":"W.M.","email":"","affiliations":[],"preferred":false,"id":432851,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031719,"text":"70031719 - 2007 - Intra- and interlaboratory variability in acute toxicity tests with glochidia and juveniles of freshwater mussels (Unionidae)","interactions":[],"lastModifiedDate":"2016-06-01T16:52:21","indexId":"70031719","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Intra- and interlaboratory variability in acute toxicity tests with glochidia and juveniles of freshwater mussels (Unionidae)","docAbstract":"The present study evaluated the performance and variability in acute toxicity tests with glochidia and newly transformed juvenile mussels using the standard methods outlined in American Society for Testing and Materials (ASTM). Multiple 48-h toxicity tests with glochidia and 96-h tests with juvenile mussels were conducted within a single laboratory and among five laboratories. All tests met the test acceptability requirements (e.g., ???90% control survival). Intralaboratory tests were conducted over two consecutive mussel-spawning seasons with mucket (Actinonaias ligamentina) or fatmucket (Lampsilis siliquoidea) using copper, ammonia, or chlorine as a toxicant. For the glochidia of both species, the variability of intralaboratory median effective concentrations (EC50s) for the three toxicants, expressed as the coefficient of variation (CV), ranged from 14 to 27% in 24-h exposures and from 13 to 36% in 48-h exposures. The intralaboratory CV of copper EC50s for juvenile fatmucket was 24% in 48-h exposures and 13% in 96-h exposures. Interlaboratory tests were conducted with fatmucket glochidia and juveniles by five laboratories using copper as a toxicant. The interlaboratory CV of copper EC50s for glochidia was 13% in 24-h exposures and 24% in 48-h exposures, and the interlaboratory CV for juveniles was 22% in 48-h exposures and 42% in 96-h exposures. The high completion success and the overall low variability in test results indicate that the test methods have acceptable precision and can be performed routinely. ?? 2007 SETAC.
","language":"English","publisher":"Wiley","doi":"10.1897/06-520R.1","issn":"07307268","usgsCitation":"Wang, N., Augspurger, T., Barnhart, M., Bidwell, J.R., Cope, W., Dwyer, F., Geis, S., Greer, I., Ingersoll, C., Kane, C., May, T., Neves, R.J., Newton, T., Roberts, A., and Whites, D., 2007, Intra- and interlaboratory variability in acute toxicity tests with glochidia and juveniles of freshwater mussels (Unionidae): Environmental Toxicology and Chemistry, v. 26, no. 10, p. 2029-2035, https://doi.org/10.1897/06-520R.1.","productDescription":"7 p.","startPage":"2029","endPage":"2035","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477181,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1897/06-520r.1","text":"Publisher Index Page"},{"id":239839,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212366,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-520R.1"}],"volume":"26","issue":"10","noUsgsAuthors":false,"publicationDate":"2007-10-01","publicationStatus":"PW","scienceBaseUri":"505a3db9e4b0c8380cd637ba","contributors":{"authors":[{"text":"Wang, N.","contributorId":81615,"corporation":false,"usgs":true,"family":"Wang","given":"N.","email":"","affiliations":[],"preferred":false,"id":432841,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Augspurger, T.","contributorId":81844,"corporation":false,"usgs":false,"family":"Augspurger","given":"T.","email":"","affiliations":[],"preferred":false,"id":432842,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barnhart, M.C.","contributorId":107410,"corporation":false,"usgs":true,"family":"Barnhart","given":"M.C.","affiliations":[],"preferred":false,"id":432847,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bidwell, Joseph R.","contributorId":105122,"corporation":false,"usgs":true,"family":"Bidwell","given":"Joseph","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":432846,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cope, W.G.","contributorId":71918,"corporation":false,"usgs":true,"family":"Cope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":432839,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dwyer, F.J.","contributorId":107818,"corporation":false,"usgs":true,"family":"Dwyer","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":432848,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Geis, S.","contributorId":90112,"corporation":false,"usgs":true,"family":"Geis","given":"S.","email":"","affiliations":[],"preferred":false,"id":432844,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Greer, I.E.","contributorId":70182,"corporation":false,"usgs":true,"family":"Greer","given":"I.E.","email":"","affiliations":[],"preferred":false,"id":432838,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Ingersoll, C.G. 0000-0003-4531-5949","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":56338,"corporation":false,"usgs":true,"family":"Ingersoll","given":"C.G.","affiliations":[],"preferred":false,"id":432837,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kane, C.M.","contributorId":20140,"corporation":false,"usgs":true,"family":"Kane","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":432834,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"May, T.W.","contributorId":75878,"corporation":false,"usgs":true,"family":"May","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":432840,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Neves, R. J.","contributorId":30936,"corporation":false,"usgs":true,"family":"Neves","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":432835,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Newton, T.J.","contributorId":104428,"corporation":false,"usgs":true,"family":"Newton","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":432845,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Roberts, A.D.","contributorId":87757,"corporation":false,"usgs":true,"family":"Roberts","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":432843,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Whites, D.W.","contributorId":52367,"corporation":false,"usgs":true,"family":"Whites","given":"D.W.","affiliations":[],"preferred":false,"id":432836,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70031710,"text":"70031710 - 2007 - Evidence of widespread natural reproduction by lake trout Salvelinus namaycush in the Michigan waters of Lake Huron","interactions":[],"lastModifiedDate":"2016-04-28T13:39:56","indexId":"70031710","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Evidence of widespread natural reproduction by lake trout Salvelinus namaycush in the Michigan waters of Lake Huron","docAbstract":"Localized natural reproduction of lake trout Salvelinus namaycush in Lake Huron has occurred since the 1980s near Thunder Bay, Michigan. During 2004–2006, USGS spring and fall bottom trawl surveys captured 63 wild juvenile lake trout at depths ranging from 37–73 m at four of five ports in the Michigan waters of the main basin of Lake Huron, more than five times the total number captured in the previous 30-year history of the surveys. Relatively high catches of wild juvenile lake trout in bottom trawls during 2004–2006 suggest that natural reproduction by lake trout has increased and occurred throughout the Michigan waters of the main basin. Increased catches of wild juvenile lake trout in the USGS fall bottom trawl survey were coincident with a drastic decline in alewife abundance, but data were insufficient to determine what mechanism may be responsible for increased natural reproduction by lake trout. We recommend further monitoring of juvenile lake trout abundance and research into early life history of lake trout in Lake Huron.
","language":"English","publisher":"International Association for Great Lakes Research","doi":"10.3394/0380-1330(2007)33[917:EOWNRB]2.0.CO;2","issn":"03801330","usgsCitation":"Riley, S., He, J., Johnson, J., O’Brien, T.P., and Schaeffer, J., 2007, Evidence of widespread natural reproduction by lake trout Salvelinus namaycush in the Michigan waters of Lake Huron: Journal of Great Lakes Research, v. 33, no. 4, p. 917-921, https://doi.org/10.3394/0380-1330(2007)33[917:EOWNRB]2.0.CO;2.","productDescription":"5 p.","startPage":"917","endPage":"921","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":239710,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212250,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3394/0380-1330(2007)33[917:EOWNRB]2.0.CO;2"}],"volume":"33","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d70e4b0c8380cd53007","contributors":{"authors":[{"text":"Riley, S.C.","contributorId":71378,"corporation":false,"usgs":true,"family":"Riley","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":432792,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"He, J.X.","contributorId":7901,"corporation":false,"usgs":true,"family":"He","given":"J.X.","email":"","affiliations":[],"preferred":false,"id":432788,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, J.E.","contributorId":44857,"corporation":false,"usgs":true,"family":"Johnson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":432791,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O’Brien, T. P.","contributorId":22146,"corporation":false,"usgs":true,"family":"O’Brien","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":432789,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schaeffer, J.S.","contributorId":42688,"corporation":false,"usgs":true,"family":"Schaeffer","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":432790,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031708,"text":"70031708 - 2007 - Effects of somatostatin on the growth hormone-insulin-like growth factor axis and seawater adaptation of rainbow trout (Oncorhynchus mykiss)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:13","indexId":"70031708","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":853,"text":"Aquaculture","active":true,"publicationSubtype":{"id":10}},"title":"Effects of somatostatin on the growth hormone-insulin-like growth factor axis and seawater adaptation of rainbow trout (Oncorhynchus mykiss)","docAbstract":"Growth hormone (GH) has been shown to contribute to the seawater (SW) adaptability of euryhaline fish both directly and indirectly through insulin-like growth factor-1 (IGF-1). This study examined the role of somatostatin-14 (SS-14), a potent inhibitor of GH, on the GH-IGF-1 axis and seawater adaptation. Juvenile rainbow trout (Oncorhynchus mykiss) were injected intraperitoneally with SS-14 or saline and transferred to 20??ppt seawater. A slight elevation in plasma chloride levels was accompanied by significantly reduced gill Na+, K+-ATPase activity in SS-14-treated fish compared to control fish 12??h after SW transfer. Seawater increased hepatic mRNA levels of GH receptor 1 (GHR 1; 239%), GHR 2 (48%), and IGF-1 (103%) in control fish 12??h after transfer. Levels of GHR 1 (155%), GHR 2 (121%), IGF-1 (200%), IGF-1 receptor A (IGFR1A; 62%), and IGFR1B (157%) increased in the gills of control fish 12??h after transfer. SS-14 abolished or attenuated SW-induced changes in the expression of GHR, IGF-1, and IGFR mRNAs in liver and gill. These results indicate that SS-14 reduces seawater adaptability by inhibiting the GH-IGF-1 axis. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquaculture","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.aquaculture.2007.10.021","issn":"00448486","usgsCitation":"Poppinga, J., Kittilson, J., McCormick, S., and Sheridan, M., 2007, Effects of somatostatin on the growth hormone-insulin-like growth factor axis and seawater adaptation of rainbow trout (Oncorhynchus mykiss): Aquaculture, v. 273, no. 2-3, p. 312-319, https://doi.org/10.1016/j.aquaculture.2007.10.021.","startPage":"312","endPage":"319","numberOfPages":"8","costCenters":[],"links":[{"id":239676,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212222,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquaculture.2007.10.021"}],"volume":"273","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a07d3e4b0c8380cd51861","contributors":{"authors":[{"text":"Poppinga, J.","contributorId":72591,"corporation":false,"usgs":true,"family":"Poppinga","given":"J.","email":"","affiliations":[],"preferred":false,"id":432780,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kittilson, J.","contributorId":26138,"corporation":false,"usgs":true,"family":"Kittilson","given":"J.","email":"","affiliations":[],"preferred":false,"id":432778,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McCormick, S. D. 0000-0003-0621-6200","orcid":"https://orcid.org/0000-0003-0621-6200","contributorId":20278,"corporation":false,"usgs":true,"family":"McCormick","given":"S. D.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":432777,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sheridan, M.A.","contributorId":53599,"corporation":false,"usgs":true,"family":"Sheridan","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":432779,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031707,"text":"70031707 - 2007 - Construction and testing of a simple and economical soil greenhouse gas automatic sampler","interactions":[],"lastModifiedDate":"2012-03-12T17:21:13","indexId":"70031707","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2431,"text":"Journal of Plant Nutrition","active":true,"publicationSubtype":{"id":10}},"title":"Construction and testing of a simple and economical soil greenhouse gas automatic sampler","docAbstract":"Quantification of soil greenhouse gas emissions requires considerable sampling to account for spatial and/or temporal variation. With manual sampling, additional personnel are often not available to sample multiple sites within a narrow time interval. The objectives were to construct an automatic gas sampler and to compare the accuracy and precision of automatic versus manual sampling. The automatic sampler was tested with carbon dioxide (CO2) fluxes that mimicked the range of CO2 fluxes during a typical corn-growing season in eastern Nebraska. Gas samples were drawn from the chamber at 0, 5, and 10 min manually and with the automatic sampler. The three samples drawn with the automatic sampler were transferred to pre-vacuumed vials after 1 h; thus the samples in syringe barrels stayed connected with the increasing CO2 concentration in the chamber. The automatic sampler sustains accuracy and precision in greenhouse gas sampling while improving time efficiency and reducing labor stress. Copyright ?? Taylor & Francis Group, LLC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Plant Nutrition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/01904160701555291","issn":"01904167","usgsCitation":"Ginting, D., Arnold, S., Arnold, N., and Tubbs, R., 2007, Construction and testing of a simple and economical soil greenhouse gas automatic sampler: Journal of Plant Nutrition, v. 30, no. 9, p. 1441-1454, https://doi.org/10.1080/01904160701555291.","startPage":"1441","endPage":"1454","numberOfPages":"14","costCenters":[],"links":[{"id":239675,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212221,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01904160701555291"}],"volume":"30","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fa15e4b0c8380cd4d91f","contributors":{"authors":[{"text":"Ginting, D.","contributorId":58462,"corporation":false,"usgs":true,"family":"Ginting","given":"D.","affiliations":[],"preferred":false,"id":432775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arnold, S.L.","contributorId":55209,"corporation":false,"usgs":true,"family":"Arnold","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":432774,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arnold, N.S.","contributorId":31205,"corporation":false,"usgs":true,"family":"Arnold","given":"N.S.","email":"","affiliations":[],"preferred":false,"id":432773,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tubbs, R.S.","contributorId":107497,"corporation":false,"usgs":true,"family":"Tubbs","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":432776,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031704,"text":"70031704 - 2007 - Hydrogeologic controls on nitrate transport in a small agricultural catchment, Iowa","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70031704","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2319,"text":"Journal of Geophysical Research G: Biogeosciences","active":true,"publicationSubtype":{"id":10}},"title":"Hydrogeologic controls on nitrate transport in a small agricultural catchment, Iowa","docAbstract":"Effects of subsurface deposits on nitrate loss in stream riparian zones are recognized, but little attention has been focused on similar processes occurring in upland agricultural settings. In this paper, we evaluated hydrogeologic controls on nitrate transport processes occurring in a small 7.6 ha Iowa catchment. Subsurface deposits in the catchment consisted of upland areas of loess overlying weathered pre-Illinoian till, drained by two ephemeral drainageways that consisted of Holocene-age silty and organic rich alluvium. Water tables in upland areas fluctuated more than 4 m per year compared to less than 0.3 m in the drainageway. Water quality patterns showed a distinct spatial pattern, with groundwater in the drainageways having lower nitrate concentrations (<0.5 mg L-1 compared to upland areas (>10 mg L-1) as wells as lower pH, dissolved oxygen and redox, and higher ammonium and dissolved organic carbon levels. Several lines of evidence suggested that conditions are conducive for denitrification of groundwater flowing from uplands through the drainageways. Field-measured nitrate decay rates in the drainageways (???0.02 day-1) were consistent with other laboratory studies and regional patterns. Results from MODFLOW and MT3DMS simulations indicated that soils in the ephemeral drainageways could process all upland groundwater nitrate flowing through them. However, model-simulated tile drainage increased both water flux and nitrate loss from the upland catchment. Study results suggest that ephemeral drainageways can provide a natural nitrate treatment system in our upland glaciated catchments, offering management opportunities to reduce nitrate delivery to streams. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research G: Biogeosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JG000405","issn":"01480227","usgsCitation":"Schilling, K.E., Tomer, M., Zhang, Y., Weisbrod, T., Jacobson, P., and Cambardella, C., 2007, Hydrogeologic controls on nitrate transport in a small agricultural catchment, Iowa: Journal of Geophysical Research G: Biogeosciences, v. 112, no. 3, https://doi.org/10.1029/2007JG000405.","costCenters":[],"links":[{"id":477263,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007jg000405","text":"Publisher Index Page"},{"id":240153,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212637,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JG000405"}],"volume":"112","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a33a3e4b0c8380cd5f142","contributors":{"authors":[{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":432759,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tomer, M.D.","contributorId":77359,"corporation":false,"usgs":true,"family":"Tomer","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":432760,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhang, Y.-K.","contributorId":44309,"corporation":false,"usgs":true,"family":"Zhang","given":"Y.-K.","email":"","affiliations":[],"preferred":false,"id":432758,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Weisbrod, T.","contributorId":30449,"corporation":false,"usgs":true,"family":"Weisbrod","given":"T.","email":"","affiliations":[],"preferred":false,"id":432757,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jacobson, P.","contributorId":11412,"corporation":false,"usgs":true,"family":"Jacobson","given":"P.","affiliations":[],"preferred":false,"id":432756,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cambardella, C.A.","contributorId":103874,"corporation":false,"usgs":true,"family":"Cambardella","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":432761,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031703,"text":"70031703 - 2007 - Genetic markers and the coregonid problem","interactions":[],"lastModifiedDate":"2016-05-06T09:39:39","indexId":"70031703","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Genetic markers and the coregonid problem","docAbstract":"Coregonid fishes are the forage base in many ecosystems in the northern hemisphere and they have traditionally been part of commercial and native fisheries. Coregonids display extreme variability in morphology, life history, and behavior. Defining boundaries among coregonid taxa has been (and continues to be) the focus of many studies. Cytogenetic, biochemical, and molecular methods have been used to study the 'coregonid problem'. A survey of the literature reveals that questions of taxonomy, followed by phylogeography are most often studied. Sample collections have occurred throughout a representative portion of the coregonid range. The whitefish species Coregonus clupeaformis and C. lavaretus are most often studied. This was expected however because they are the most widely distributed, display the most variation, and are the most commercially important. However, species with restricted ranges such as the Irish pollan (C. pollan) or omul (C. migratorius) have also been studied intensively. Genetic methods have provided insights into several issues, including the placement of Stenodus and the status of C. clupeaformis and C. lavaretus. More recently, studies of sympatric forms over broad geographic scales shed light on processes involved in the evolution of the group and suggest different approaches for management and designation of taxa. ?? 2007 E. Schweizerbart'sche Verlagsbuchhandlung.
","largerWorkTitle":"Advances in Limnology","language":"English","issn":"1612166X","isbn":"3510470621; 9783510470624","usgsCitation":"Stott, W., and Todd, T.N., 2007, Genetic markers and the coregonid problem, in Advances in Limnology, v. 60, p. 3-23.","productDescription":"21 p.","startPage":"3","endPage":"23","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":240118,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a157fe4b0c8380cd54e40","contributors":{"editors":[{"text":"Jankun M.Brzuzan P.Hliwa P.Luczynski M.","contributorId":128357,"corporation":true,"usgs":false,"organization":"Jankun M.Brzuzan P.Hliwa P.Luczynski M.","id":536664,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Stott, W.","contributorId":77734,"corporation":false,"usgs":true,"family":"Stott","given":"W.","email":"","affiliations":[],"preferred":false,"id":432755,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Todd, T. N.","contributorId":13931,"corporation":false,"usgs":true,"family":"Todd","given":"T.","email":"","middleInitial":"N.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":432754,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031702,"text":"70031702 - 2007 - Diet niches of major forage fish in Lake Michigan","interactions":[],"lastModifiedDate":"2016-05-06T08:40:55","indexId":"70031702","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Diet niches of major forage fish in Lake Michigan","docAbstract":"A large complex of coregonine species historically dominated the fish community of Lake Michigan. The current species complex is simplified with one remaining coregonine, bloater (Coregonus hoyi), deepwater sculpin (Myoxocephalus thompsoni), slimy sculpin (Cottus cognatus), and two dominant invaders, alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax). To better understand the diet relationships of the major offshore forage fishes now in Lake Michigan, diets of bloater, alewife, rainbow smelt, deepwater sculpin, and slimy sculpin were compared. The three sites, chosen to represent northern, central, and southern components of the lake, were sampled during spring, summer, and fall in 1994, and spring and fall in 1995. Forage fishes had diverse and variable diets, with niches differentiated by prey type or location. Diporeia hoyi, Mysis relicta, and zooplankton were the major diet items. The index of relative importance showed benthic (slimy and deepwater sculpins) and pelagic (alewife, rainbow smelt) feeding strategies with opportunistic bloaters incorporating both feeding strategies. Highest diet overlaps were between species of sculpin, and between large and small bloaters; both groups partitioned food by size. Though competition for food may be minimized by spatial segregation of potential competitors, the forage fish in Lake Michigan apparently partition food resources. Fishery management models incorporating food habits of pelagic forage fish would need to take into account diet variation associated with location and season. ?? 2007 E. Schweizerbart'sche Verlagsbuchhandlung.
","largerWorkTitle":"Advances in Limnology","language":"English","issn":"1612166X","isbn":"3510470621; 9783510470624","usgsCitation":"Hunter, R.D., Savino, J., and Ogilvie, L., 2007, Diet niches of major forage fish in Lake Michigan, in Advances in Limnology, v. 60, p. 261-275.","productDescription":"15 p.","startPage":"261","endPage":"275","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":240117,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a00d2e4b0c8380cd4f937","contributors":{"editors":[{"text":"Jankun M.Brzuzan P.Hliwa P.Luczynski M.","contributorId":128357,"corporation":true,"usgs":false,"organization":"Jankun M.Brzuzan P.Hliwa P.Luczynski M.","id":536663,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Hunter, R. Douglas","contributorId":49183,"corporation":false,"usgs":false,"family":"Hunter","given":"R.","email":"","middleInitial":"Douglas","affiliations":[],"preferred":false,"id":432752,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Savino, J.F.","contributorId":69337,"corporation":false,"usgs":true,"family":"Savino","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":432753,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ogilvie, L.M.","contributorId":33682,"corporation":false,"usgs":true,"family":"Ogilvie","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":432751,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031701,"text":"70031701 - 2007 - Near infrared spectroscopic examination of charred pine wood, bark, cellulose and lignin: Implications for the quantitative determination of charcoal in soils","interactions":[],"lastModifiedDate":"2018-10-17T08:11:56","indexId":"70031701","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2398,"text":"Journal of Near Infrared Spectroscopy","active":true,"publicationSubtype":{"id":10}},"title":"Near infrared spectroscopic examination of charred pine wood, bark, cellulose and lignin: Implications for the quantitative determination of charcoal in soils","docAbstract":"The objective of this research was to investigate the effect of charring on near infrared spectra of materials likely to be present in forest fires in order to determine the feasibility of determining charred carbon in soils. Four materials (cellulose, lignin, pine bark and pine wood) and char from these materials created by charring for various durations (1 to 168 h) and at various temperatures (200 to 450??C) were studied. Near infrared spectra and measures of acidity (total acids, carboxylic acids, lactones and phenols as determined by titration) were available for 56 different samples (Not all samples charred at all temperatures/durations). Results showed spectral changes that varied with the material, temperature and duration of charring. Examination of spectra and correlation plots indicated that changes in the constituents of the materials in question, such as loss of OH groups in carbohydrates, rather than direct determination of typical products produced by charring, such as carboxylic acids, lactones and phenols, were the basis for the spectral changes. Finally, while the spectral changes resulting from charring appeared to be relatively unique to each material, PLS calibrations for total acids, carboxylic acids, lactones and phenols were successfully created (with R2 of 0.991, 0.943, 0.931 and 0.944, respectively) indicating that there is a sufficient commonality in the changes to develop calibrations without the need for unique calibrations for each specific set of charring conditions (i.e. material, temperature and time of heating).
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Near Infrared Spectroscopy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1255/jnirs.742","issn":"09670335","usgsCitation":"Reeves, J.B., McCarty, G.W., Rutherford, D.W., and Wershaw, R.L., 2007, Near infrared spectroscopic examination of charred pine wood, bark, cellulose and lignin: Implications for the quantitative determination of charcoal in soils: Journal of Near Infrared Spectroscopy, v. 15, no. 5, p. 307-315, https://doi.org/10.1255/jnirs.742.","productDescription":"9 p.","startPage":"307","endPage":"315","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240081,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212578,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1255/jnirs.742"}],"volume":"15","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-10-01","publicationStatus":"PW","scienceBaseUri":"505a63d2e4b0c8380cd726fe","contributors":{"authors":[{"text":"Reeves, James B. III","contributorId":40693,"corporation":false,"usgs":true,"family":"Reeves","given":"James","suffix":"III","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":432750,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCarty, Gregory W.","contributorId":192367,"corporation":false,"usgs":false,"family":"McCarty","given":"Gregory","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":432748,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rutherford, David W. dwruther@usgs.gov","contributorId":1325,"corporation":false,"usgs":true,"family":"Rutherford","given":"David","email":"dwruther@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":432747,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wershaw, Robert L. rwershaw@usgs.gov","contributorId":4856,"corporation":false,"usgs":true,"family":"Wershaw","given":"Robert","email":"rwershaw@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":432749,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031698,"text":"70031698 - 2007 - Accelerated uplift and magmatic intrusion of the Yellowstone caldera, 2004 to 2006","interactions":[],"lastModifiedDate":"2023-07-14T11:02:12.686795","indexId":"70031698","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Accelerated uplift and magmatic intrusion of the Yellowstone caldera, 2004 to 2006","docAbstract":"The Yellowstone caldera began a rapid episode of ground uplift in mid-2004, revealed by Global Positioning System and interferometric synthetic aperture radar measurements, at rates up to 7 centimeters per year, which is over three times faster than previously observed inflation rates. Source modeling of the deformation data suggests an expanding volcanic sill of ???1200 square kilometers at a 10-kilometer depth beneath the caldera, coincident with the top of a seismically imaged crustal magma chamber. The modeled rate of source volume increase is 0.1 cubic kilometer per year, similar to the amount of magma intrusion required to supply the observed high heat flow of the caldera. This evidence suggests magma recharge as the main mechanism for the accelerated uplift, although pressurization of magmatic fluids cannot be ruled out.","language":"English","publisher":"Science","doi":"10.1126/science.1146842","issn":"00368075","usgsCitation":"Chang, W., Smith, R.B., Wicks, C., Farrell, J., and Puskas, C., 2007, Accelerated uplift and magmatic intrusion of the Yellowstone caldera, 2004 to 2006: Science, v. 318, no. 5852, p. 952-956, https://doi.org/10.1126/science.1146842.","productDescription":"5 p.","startPage":"952","endPage":"956","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":240046,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -110.89833824478511,\n 44.83050887581513\n ],\n [\n -110.89833824478511,\n 44.10166389767244\n ],\n [\n -109.77272256053023,\n 44.10166389767244\n ],\n [\n -109.77272256053023,\n 44.83050887581513\n ],\n [\n -110.89833824478511,\n 44.83050887581513\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"318","issue":"5852","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e667e4b0c8380cd473cb","contributors":{"authors":[{"text":"Chang, Wu-Lung","contributorId":26884,"corporation":false,"usgs":false,"family":"Chang","given":"Wu-Lung","email":"","affiliations":[],"preferred":false,"id":432737,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Robert B.","contributorId":90824,"corporation":false,"usgs":true,"family":"Smith","given":"Robert","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":432739,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wicks, Charles 0000-0002-0809-1328","orcid":"https://orcid.org/0000-0002-0809-1328","contributorId":9023,"corporation":false,"usgs":true,"family":"Wicks","given":"Charles","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":432736,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Farrell, J.M.","contributorId":54408,"corporation":false,"usgs":true,"family":"Farrell","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":432738,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Puskas, C.M.","contributorId":76135,"corporation":false,"usgs":true,"family":"Puskas","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":432740,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031694,"text":"70031694 - 2007 - Restoration of waterbird habitats in Chesapeake Bay: Great expectations or Sisyphus revisited?","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031694","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Restoration of waterbird habitats in Chesapeake Bay: Great expectations or Sisyphus revisited?","docAbstract":"In the past half century, many waterbird populations in Chesapeake Bay have declined or shifted ranges, indicating major ecological changes have occurred. While many studies have focused on the problems associated with environmental degradation such as the losses of coastal wetlands and submerged vegetation, a number of restoration efforts have been launched in the past few decades to reverse the \"sea of despair.\" Most pertinent to waterbirds, restoration of submerged aquatic vegetation (SAV) beds, tidal wetland restoration, oyster reef restoration, and island creation/restoration have benefited a number of species. State and federal agencies and non-government agencies have formed partnerships to spawn many projects ranging in size from less than 0.5 ha to ca. 1,000 ha. While most SAV, wetland, and oyster reef projects have struggled to different degrees over the past ten to twenty years with inconsistent methods, irregular monitoring, and unknown reasons for failures, recent improvements in techniques and application of adaptive management have been made. The large dredge-material island projects at Hart-Miller Island near Baltimore, Poplar Island west of Tilghman Island, Maryland, and Craney Island in Portsmouth, Virginia have provided large outdoor \"laboratories\" for wildlife, fishery, and wetland habitat creation. All three have proven to be important for nesting waterbirds and migrant shorebirds and waterfowl; however nesting populations at all three islands have been compromised to different degrees by predators. Restoration success for waterbirds and other natural resources depends on: (1) establishing realistic, quantifiable objectives and performance criteria, (2) continued monitoring and management (e.g., predator control), (3) targeted research to determine causality, and (4) careful evaluation under an adaptive management regime.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/1524-4695(2007)030[0163:ROWHIC]2.0.CO;2","issn":"15244695","usgsCitation":"Erwin, R., and Beck, R., 2007, Restoration of waterbird habitats in Chesapeake Bay: Great expectations or Sisyphus revisited?: Waterbirds, v. 30, no. SPEC. ISS. 1, p. 163-176, https://doi.org/10.1675/1524-4695(2007)030[0163:ROWHIC]2.0.CO;2.","startPage":"163","endPage":"176","numberOfPages":"14","costCenters":[],"links":[{"id":212452,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2007)030[0163:ROWHIC]2.0.CO;2"},{"id":239942,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"SPEC. ISS. 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaad2e4b0c8380cd86551","contributors":{"authors":[{"text":"Erwin, R.M.","contributorId":57396,"corporation":false,"usgs":true,"family":"Erwin","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":432724,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beck, R.A.","contributorId":44246,"corporation":false,"usgs":true,"family":"Beck","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":432723,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031692,"text":"70031692 - 2007 - Spatial distribution of juvenile and adult female Tanner crabs (Chionoecetes bairdi) in a glacial fjord ecosystem: Implications for recruitment processes","interactions":[],"lastModifiedDate":"2018-03-29T11:10:42","indexId":"70031692","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1936,"text":"ICES Journal of Marine Science","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Spatial distribution of juvenile and adult female Tanner crabs (Chionoecetes bairdi) in a glacial fjord ecosystem: Implications for recruitment processes","title":"Spatial distribution of juvenile and adult female Tanner crabs (Chionoecetes bairdi) in a glacial fjord ecosystem: Implications for recruitment processes","docAbstract":"A systematic pot survey in Glacier Bay, Alaska, was conducted to characterize the spatial distribution of juvenile and adult female Tanner crabs, and their association with depth and temperature. The information was used to infer important recruitment processes for Tanner crabs in glaciated ecosystems. High-catch areas for juvenile and adult female Tanner crabs were identified using local autocorrelation statistics. Spatial segregation by size class corresponded to features in the glacial landscape: high-catch areas for juveniles were located at the distal ends of two narrow glacial fjords, and high-catch areas for adults were located in the open waters of the central Bay. Juvenile female Tanner crabs were found at nearly all sampled depths (15–439 m) and temperatures (4–8°C), but the biggest catches were at depths <150 m where adults were scarce. Because adults may prey on or compete with juveniles, the distribution of juveniles could be influenced by the distribution of adults. Areas where adults or predators are scarce, such as glacially influenced fjords, could serve as refuges for juvenile Tanner crabs.
","language":"English","publisher":"Oxford Academic","doi":"10.1093/icesjms/fsm158","usgsCitation":"Nielsen, J., Taggart, S.J., Shirley, T.C., and Mondragon, J., 2007, Spatial distribution of juvenile and adult female Tanner crabs (Chionoecetes bairdi) in a glacial fjord ecosystem: Implications for recruitment processes: ICES Journal of Marine Science, v. 64, no. 9, p. 1772-1784, https://doi.org/10.1093/icesjms/fsm158.","productDescription":"13 p.","startPage":"1772","endPage":"1784","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":477073,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/icesjms/fsm158","text":"Publisher Index Page"},{"id":239907,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"9","noUsgsAuthors":false,"publicationDate":"2007-11-12","publicationStatus":"PW","scienceBaseUri":"505b946ee4b08c986b31aa9e","contributors":{"authors":[{"text":"Nielsen, J.K.","contributorId":84488,"corporation":false,"usgs":true,"family":"Nielsen","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":432716,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taggart, S. James","contributorId":30131,"corporation":false,"usgs":true,"family":"Taggart","given":"S.","email":"","middleInitial":"James","affiliations":[],"preferred":false,"id":432714,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shirley, Thomas C.","contributorId":17409,"corporation":false,"usgs":false,"family":"Shirley","given":"Thomas","email":"","middleInitial":"C.","affiliations":[{"id":12548,"text":"University of Alaska Fairbanks, School of Fisheries and Ocean Sciences","active":true,"usgs":false}],"preferred":false,"id":432713,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mondragon, Jennifer","contributorId":57580,"corporation":false,"usgs":false,"family":"Mondragon","given":"Jennifer","email":"","affiliations":[],"preferred":false,"id":432715,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031691,"text":"70031691 - 2007 - Preliminary identification of ground-water nitrate sources using nitrogen and carbon stable isotopes, Kansas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031691","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1358,"text":"Current Research in Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Preliminary identification of ground-water nitrate sources using nitrogen and carbon stable isotopes, Kansas","docAbstract":"Increasing nitrate-N in ground water is a problem in areas with limited ground-water supplies, such as central Kansas. Nitrate-N concentrations in ground water in the study area in Ellis County range from 0.9 to 26 mg/L. Calculated mean values observed in soil cores are 1.2-15 mg/kg. The ??15N signatures of the ground waters are more enriched (+16.8 to +28.7???) than those of the soils (+8.4 to +1 3.7???), strongly suggesting that nitrate-N sources are not from mineralized and labile nitrogen present in the unsaturated zone. Soil cores were collected near municipal wells to determine if soil nitrogen was a contributing source to the ground water. Increased ??15N of total nitrogen with depth suggests that microbial mineralization processes and possible denitrification or volatilization isotope enrichments have affected the observed ?? 15N signatures in the soil. However, the observed soil-nitrogen values are not of sufficient magnitude to explain the nitrate-N concentrations or associated ??15N values observed in the ground water. Stable carbon isotopes provide some supporting evidence that soils are not a major contributor to the observed nitrate-N concentration in the ground water. ?? 13C values of the dissolved organic carbon (DOC) in soils generally become more enriched with depth while corresponding ground-water ??13C (DOC) values are more depleted than in the overlying soils. Carbon isotope values of the soils are indicative of a C4 plant source that is enriched by microbial processes. The ??13C (DOC) of ground water indicates C3 values that may reflect impacts from animal-waste sources.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Current Research in Earth Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Townsend, M., and Macko, S., 2007, Preliminary identification of ground-water nitrate sources using nitrogen and carbon stable isotopes, Kansas: Current Research in Earth Sciences, v. 253, no. 3.","costCenters":[],"links":[{"id":239906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"253","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a882ee4b0c8380cd7d783","contributors":{"authors":[{"text":"Townsend, M.A.","contributorId":88785,"corporation":false,"usgs":true,"family":"Townsend","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":432711,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Macko, S.A.","contributorId":105408,"corporation":false,"usgs":true,"family":"Macko","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":432712,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031690,"text":"70031690 - 2007 - Call for collaboration in WMO project for the assessment of the performance of flow measurement instruments and techniques","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031690","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2338,"text":"Journal of Hydraulic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Call for collaboration in WMO project for the assessment of the performance of flow measurement instruments and techniques","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydraulic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1061/(ASCE)0733-9429(2007)133:12(1439)","issn":"07339429","usgsCitation":"Fulford, J., Pilon, P., Kopaliani, Z., McCurry, P., and Caponi, C., 2007, Call for collaboration in WMO project for the assessment of the performance of flow measurement instruments and techniques: Journal of Hydraulic Engineering, v. 133, no. 12, p. 1439-1440, https://doi.org/10.1061/(ASCE)0733-9429(2007)133:12(1439).","startPage":"1439","endPage":"1440","numberOfPages":"2","costCenters":[],"links":[{"id":212396,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9429(2007)133:12(1439)"},{"id":239873,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"133","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f326e4b0c8380cd4b616","contributors":{"authors":[{"text":"Fulford, J.M.","contributorId":27473,"corporation":false,"usgs":true,"family":"Fulford","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":432706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pilon, P.J.","contributorId":36757,"corporation":false,"usgs":true,"family":"Pilon","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":432707,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kopaliani, Z.","contributorId":58463,"corporation":false,"usgs":true,"family":"Kopaliani","given":"Z.","email":"","affiliations":[],"preferred":false,"id":432708,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McCurry, P.J.","contributorId":62412,"corporation":false,"usgs":true,"family":"McCurry","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":432709,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Caponi, C.","contributorId":95274,"corporation":false,"usgs":true,"family":"Caponi","given":"C.","email":"","affiliations":[],"preferred":false,"id":432710,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}