[1] Hydrothermally altered rocks, particularly if water saturated, can weaken stratovolcanoes, thereby increasing the potential for catastrophic sector collapses that can lead to far-traveled, destructive debris flows. Evaluating the hazards associated with such alteration is difficult because alteration has been mapped on few active volcanoes and the distribution and intensity of subsurface alteration are largely unknown on any active volcano. At Mount Adams, some Holocene debris flows contain abundant hydrothermal minerals derived from collapse of the altered edifice. Intense hydrothermal alteration significantly reduces the resistivity and magnetization of volcanic rock, and therefore hydrothermally altered rocks can be identified with helicopter electromagnetic and magnetic measurements. Electromagnetic and magnetic data, combined with geological mapping and rock property measurements, indicate the presence of appreciable thicknesses of hydrothermally altered rock in the central core of Mount Adams north of the summit. We identify steep cliffs at the western edge of this zone as the likely source for future large debris flows. In addition, the electromagnetic data identified water in the brecciated core of the upper 100–200 m of the volcano. Water helps alter the rocks, reduces the effective stress, thereby increasing the potential for slope failure, and acts, with entrained melting ice, as a lubricant to transform debris avalanches into lahars. Therefore knowing the distribution of water is also important for hazard assessments. Our results demonstrate that high-resolution geophysical and geological observations can yield unprecedented views of the three-dimensional distribution of altered rock and shallow pore water aiding evaluation of the debris avalanche hazard.
The Descent Imager/Spectral Radiometer (DISR) aboard the Huygens Probe took several hundred visible-light images with its three cameras on approach to the surface of Titan. Several sets of stereo image pairs were collected during the descent. The digital terrain models constructed from those images show rugged topography, in places approaching the angle of repose, adjacent to flatter darker plains. Brighter regions north of the landing site display two styles of drainage patterns: (1) bright highlands with rough topography and deeply incised branching dendritic drainage networks (up to fourth order) with dark-floored valleys that are suggestive of erosion by methane rainfall and (2) short, stubby low-order drainages that follow linear fault patterns forming canyon-like features suggestive of methane spring-sapping. The topographic data show that the bright highland terrains are extremely rugged; slopes of order of 30° appear common. These systems drain into adjacent relatively flat, dark lowland terrains. A stereo model for part of the dark plains region to the east of the landing site suggests surface scour across this plain flowing from west to east leaving ∼100-m-high bright ridges. Tectonic patterns are evident in (1) controlling the rectilinear, low-order, stubby drainages and (2) the “coastline” at the highland–lowland boundary with numerous straight and angular margins. In addition to flow from the highlands drainages, the lowland area shows evidence for more prolific flow parallel to the highland–lowland boundary leaving bright outliers resembling terrestrial sandbars. This implies major west to east floods across the plains where the probe landed with flow parallel to the highland–lowland boundary; the primary source of these flows is evidently not the dendritic channels in the bright highlands to the north.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Planetary and Space Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.pss.2007.04.015","issn":"00320633","usgsCitation":"Soderblom, L.A., Tomasko, M.G., Archinal, B.A., Becker, T.L., Bushroe, M.W., Cook, D., Doose, L.R., Galuszka, D.M., Hare, T.M., Howington-Kraus, E., Karkoschka, E., Kirk, R.L., Lunine, J.I., McFarlane, E.A., Redding, B.L., Rizk, B., Rosiek, M.R., See, C., and Smith, P.H., 2007, Topography and geomorphology of the Huygens landing site on Titan: Planetary and Space Science, v. 55, no. 13, p. 2015-2024, https://doi.org/10.1016/j.pss.2007.04.015.","productDescription":"10 p.","startPage":"2015","endPage":"2024","numberOfPages":"10","costCenters":[{"id":131,"text":"Astrogeology Science 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G.","contributorId":147252,"corporation":false,"usgs":false,"family":"Tomasko","given":"Martin","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":432074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Archinal, Brent A. 0000-0002-6654-0742 barchinal@usgs.gov","orcid":"https://orcid.org/0000-0002-6654-0742","contributorId":2816,"corporation":false,"usgs":true,"family":"Archinal","given":"Brent","email":"barchinal@usgs.gov","middleInitial":"A.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432060,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Becker, Tammy L. tbecker@usgs.gov","contributorId":4388,"corporation":false,"usgs":true,"family":"Becker","given":"Tammy","email":"tbecker@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science 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R.","contributorId":211197,"corporation":false,"usgs":false,"family":"Doose","given":"Lyn","email":"","middleInitial":"R.","affiliations":[{"id":36888,"text":"Lunar and Planetary Laboratory, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":432061,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Galuszka, Donna M. 0000-0003-1870-1182 dgaluszka@usgs.gov","orcid":"https://orcid.org/0000-0003-1870-1182","contributorId":3186,"corporation":false,"usgs":true,"family":"Galuszka","given":"Donna","email":"dgaluszka@usgs.gov","middleInitial":"M.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432067,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Hare, Trent M. 0000-0001-8842-389X thare@usgs.gov","orcid":"https://orcid.org/0000-0001-8842-389X","contributorId":3188,"corporation":false,"usgs":true,"family":"Hare","given":"Trent","email":"thare@usgs.gov","middleInitial":"M.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432065,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Howington-Kraus, Elpitha 0000-0001-5787-6554 ahowington@usgs.gov","orcid":"https://orcid.org/0000-0001-5787-6554","contributorId":2815,"corporation":false,"usgs":true,"family":"Howington-Kraus","given":"Elpitha","email":"ahowington@usgs.gov","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432064,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Karkoschka, Erich","contributorId":147250,"corporation":false,"usgs":false,"family":"Karkoschka","given":"Erich","email":"","affiliations":[],"preferred":false,"id":432063,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432073,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Lunine, Jonathan I.","contributorId":82447,"corporation":false,"usgs":true,"family":"Lunine","given":"Jonathan","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":432066,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"McFarlane, Elisabeth A.","contributorId":211198,"corporation":false,"usgs":false,"family":"McFarlane","given":"Elisabeth","email":"","middleInitial":"A.","affiliations":[{"id":36888,"text":"Lunar and Planetary Laboratory, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":432057,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Redding, Bonnie L. 0000-0001-8178-1467 bredding@usgs.gov","orcid":"https://orcid.org/0000-0001-8178-1467","contributorId":4798,"corporation":false,"usgs":true,"family":"Redding","given":"Bonnie","email":"bredding@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432058,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Rizk, Bashar","contributorId":24257,"corporation":false,"usgs":true,"family":"Rizk","given":"Bashar","email":"","affiliations":[],"preferred":false,"id":432069,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Rosiek, Mark R. mrosiek@usgs.gov","contributorId":824,"corporation":false,"usgs":true,"family":"Rosiek","given":"Mark","email":"mrosiek@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":432059,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"See, Charles","contributorId":211199,"corporation":false,"usgs":false,"family":"See","given":"Charles","email":"","affiliations":[{"id":36888,"text":"Lunar and Planetary Laboratory, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":432068,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Smith, Peter H.","contributorId":211201,"corporation":false,"usgs":false,"family":"Smith","given":"Peter","email":"","middleInitial":"H.","affiliations":[{"id":36888,"text":"Lunar and Planetary Laboratory, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":432072,"contributorType":{"id":1,"text":"Authors"},"rank":19}]}} ,{"id":70031553,"text":"70031553 - 2007 - An efficient mode-splitting method for a curvilinear nearshore circulation model","interactions":[],"lastModifiedDate":"2023-07-20T11:10:58.188691","indexId":"70031553","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1262,"text":"Coastal Engineering","active":true,"publicationSubtype":{"id":10}},"title":"An efficient mode-splitting method for a curvilinear nearshore circulation model","docAbstract":"A mode-splitting method is applied to the quasi-3D nearshore circulation equations in generalized curvilinear coordinates. The gravity wave mode and the vorticity wave mode of the equations are derived using the two-step projection method. Using an implicit algorithm for the gravity mode and an explicit algorithm for the vorticity mode, we combine the two modes to derive a mixed difference–differential equation with respect to surface elevation. McKee et al.'s [McKee, S., Wall, D.P., and Wilson, S.K., 1996. An alternating direction implicit scheme for parabolic equations with mixed derivative and convective terms. J. Comput. Phys., 126, 64–76.] ADI scheme is then used to solve the parabolic-type equation in dealing with the mixed derivative and convective terms from the curvilinear coordinate transformation. Good convergence rates are found in two typical cases which represent respectively the motions dominated by the gravity mode and the vorticity mode. Time step limitations imposed by the vorticity convective Courant number in vorticity-mode-dominant cases are discussed. Model efficiency and accuracy are verified in model application to tidal current simulations in San Francisco Bight.","language":"English","publisher":"Elsevier","doi":"10.1016/j.coastaleng.2007.05.009","issn":"03783839","usgsCitation":"Shi, F., Kirby, J.T., and Hanes, D.M., 2007, An efficient mode-splitting method for a curvilinear nearshore circulation model: Coastal Engineering, v. 54, no. 11, p. 811-824, https://doi.org/10.1016/j.coastaleng.2007.05.009.","productDescription":"14 p.","startPage":"811","endPage":"824","numberOfPages":"14","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":239933,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea30e4b0c8380cd486ba","contributors":{"authors":[{"text":"Shi, Fengyan","contributorId":72519,"corporation":false,"usgs":true,"family":"Shi","given":"Fengyan","email":"","affiliations":[],"preferred":false,"id":432076,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirby, James T.","contributorId":22895,"corporation":false,"usgs":true,"family":"Kirby","given":"James","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":432075,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hanes, Daniel M.","contributorId":96360,"corporation":false,"usgs":true,"family":"Hanes","given":"Daniel","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":432077,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031556,"text":"70031556 - 2007 - Recent records of alien anurans on the Pacific Island of Guam","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031556","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2990,"text":"Pacific Science","active":true,"publicationSubtype":{"id":10}},"title":"Recent records of alien anurans on the Pacific Island of Guam","docAbstract":"Eight anuran species were recorded for the first time in Guam in the period May 2003-December 2005, all apparently the result of arrivals to the island since 2000. Three of the eight species (Rana guentheri, Polypedates megacephalus, and Eleutherodactylus planirostris) had well-established breeding populations by 2005. A further three (Fejevarya cf. livinocharis, Fejervarya cancrivora, and Microhyla pulchra) were recorded from a number of individuals, but it is not known whether these species have established breeding populations. Two species (Kaloula pulchra and Eleutherodactylus coqui) appear to be incidental transportations to the island that have not established. Before 2003, five anuran species, all introductions, had been recorded from Guam. Three of these, Polypedates leucomystax, Pseudacris regilla, and Kaloula picta, were detected on Guam in incoming cargo but destroyed. Two species established: Bufo marinus was deliberately introduced and the Australian hylid Litoria fallax was probably an accidental introduction. Successful establishment of anurans on Guam has increased the risk of frog introductions to nearby islands. By providing additional food sources for the brown tree snake (Boiga irregularis), anuran introductions have increased the chance that B. irregularis might substantially increase in numbers and in turn increase the risk of the snake being accidentally transported to other islands. ?? 2007 by University of Hawai'i Press All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pacific Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2984/1534-6188(2007)61[469:RROAAO]2.0.CO;2","issn":"00308870","usgsCitation":"Christy, M., Clark, C., Gee, D., Vice, D., Vice, D., Warner, M., Tyrrell, C., Rodda, G., and Savidge, J.A., 2007, Recent records of alien anurans on the Pacific Island of Guam: Pacific Science, v. 61, no. 4, p. 469-483, https://doi.org/10.2984/1534-6188(2007)61[469:RROAAO]2.0.CO;2.","startPage":"469","endPage":"483","numberOfPages":"15","costCenters":[],"links":[{"id":477094,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10125/22630","text":"External Repository"},{"id":212478,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2984/1534-6188(2007)61[469:RROAAO]2.0.CO;2"},{"id":239968,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"61","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9635e4b0c8380cd81e7e","contributors":{"authors":[{"text":"Christy, M.T.","contributorId":20968,"corporation":false,"usgs":true,"family":"Christy","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":432084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, C.S.","contributorId":20288,"corporation":false,"usgs":true,"family":"Clark","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":432083,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gee, D.E. II","contributorId":28431,"corporation":false,"usgs":true,"family":"Gee","given":"D.E.","suffix":"II","email":"","affiliations":[],"preferred":false,"id":432085,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vice, D.","contributorId":62022,"corporation":false,"usgs":true,"family":"Vice","given":"D.","email":"","affiliations":[],"preferred":false,"id":432087,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vice, D.S.","contributorId":62023,"corporation":false,"usgs":true,"family":"Vice","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":432088,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Warner, M.P.","contributorId":71001,"corporation":false,"usgs":true,"family":"Warner","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":432089,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Tyrrell, C.L.","contributorId":84551,"corporation":false,"usgs":true,"family":"Tyrrell","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":432090,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rodda, G.H.","contributorId":103998,"corporation":false,"usgs":true,"family":"Rodda","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":432091,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Savidge, J. A.","contributorId":36078,"corporation":false,"usgs":false,"family":"Savidge","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":432086,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70031557,"text":"70031557 - 2007 - Assessments of habitat preferences and quality depend on spatial scale and metrics of fitness","interactions":[],"lastModifiedDate":"2012-03-12T17:21:14","indexId":"70031557","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Assessments of habitat preferences and quality depend on spatial scale and metrics of fitness","docAbstract":"1. Identifying the habitat features that influence habitat selection and enhance fitness is critical for effective management. Ecological theory predicts that habitat choices should be adaptive, such that fitness is enhanced in preferred habitats. However, studies often report mismatches between habitat preferences and fitness consequences across a wide variety of taxa based on a single spatial scale and/or a single fitness component. 2. We examined whether habitat preferences of a declining shrub steppe songbird, the Brewer's sparrow Spizella breweri, were adaptive when multiple reproductive fitness components and spatial scales (landscape, territory and nest patch) were considered. 3. We found that birds settled earlier and in higher densities, together suggesting preference, in landscapes with greater shrub cover and height. Yet nest success was not higher in these landscapes; nest success was primarily determined by nest predation rates. Thus landscape preferences did not match nest predation risk. Instead, nestling mass and the number of nesting attempts per pair increased in preferred landscapes, raising the possibility that landscapes were chosen on the basis of food availability rather than safe nest sites. 4. At smaller spatial scales (territory and nest patch), birds preferred different habitat features (i.e. density of potential nest shrubs) that reduced nest predation risk and allowed greater season-long reproductive success. 5. Synthesis and applications. Habitat preferences reflect the integration of multiple environmental factors across multiple spatial scales, and individuals may have more than one option for optimizing fitness via habitat selection strategies. Assessments of habitat quality for management prescriptions should ideally include analysis of diverse fitness consequences across multiple ecologically relevant spatial scales. ?? 2007 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2664.2007.01352.x","issn":"00218901","usgsCitation":"Chalfoun, A., and Martin, T.E., 2007, Assessments of habitat preferences and quality depend on spatial scale and metrics of fitness: Journal of Applied Ecology, v. 44, no. 5, p. 983-992, https://doi.org/10.1111/j.1365-2664.2007.01352.x.","startPage":"983","endPage":"992","numberOfPages":"10","costCenters":[],"links":[{"id":212505,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2664.2007.01352.x"},{"id":239998,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-07-23","publicationStatus":"PW","scienceBaseUri":"5059ee89e4b0c8380cd49de0","contributors":{"authors":[{"text":"Chalfoun, A.D.","contributorId":16954,"corporation":false,"usgs":true,"family":"Chalfoun","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":432093,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, T. E.","contributorId":10911,"corporation":false,"usgs":true,"family":"Martin","given":"T.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":432092,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031558,"text":"70031558 - 2007 - Acute toxicity of copper, ammonia, and chlorine to glochidia and juveniles of freshwater mussels (Unionidae)","interactions":[],"lastModifiedDate":"2016-06-01T16:59:33","indexId":"70031558","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":"Acute toxicity of copper, ammonia, and chlorine to glochidia and juveniles of freshwater mussels (Unionidae)","docAbstract":"The objective of the present study was to determine acute toxicity of copper, ammonia, or chlorine to larval (glochidia) and juvenile mussels using the recently published American Society for Testing and Materials (ASTM) Standard guide for conducting laboratory toxicity tests with freshwater mussels. Toxicity tests were conducted with glochidia (24- to 48-h exposures) and juveniles (96-h exposures) of up to 11 mussel species in reconstituted ASTM hard water using copper, ammonia, or chlorine as a toxicant. Copper and ammonia tests also were conducted with five commonly tested species, including cladocerans (Daphnia magna and Ceriodaphnia dubia; 48-h exposures), amphipod (Hyalella azteca; 48-h exposures), rainbow trout (Oncorhynchus mykiss; 96-h exposures), and fathead minnow (Pimephales promelas; 96-h exposures). Median effective concentrations (EC50s) for commonly tested species were >58 ??g Cu/L (except 15 ??g Cu/L for C. dubia) and >13 mg total ammonia N/L, whereas the EC50s for mussels in most cases were 40 ??g/L and above the FAV in the WQC for chlorine. The results indicate that the early life stages of mussels generally were more sensitive to copper and ammonia than other organisms and that, including mussel toxicity data in a revision to the WQC, would lower the WQC for copper or ammonia. Furthermore, including additional mussel data in 2007 WQC for copper based on biotic ligand model would further lower the WQC. ?? 2007 SETAC.
","language":"English","publisher":"Wiley","doi":"10.1897/06-523R.1","issn":"07307268","usgsCitation":"Wang, N., Ingersoll, C., Hardesty, D., Ivey, C., Kunz, J., May, T., Dwyer, F., Roberts, A., Augspurger, T., Kane, C., Neves, R.J., and Barnhart, M., 2007, Acute toxicity of copper, ammonia, and chlorine to glochidia and juveniles of freshwater mussels (Unionidae): Environmental Toxicology and Chemistry, v. 26, no. 10, p. 2036-2047, https://doi.org/10.1897/06-523R.1.","productDescription":"12 p.","startPage":"2036","endPage":"2047","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":239999,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"10","noUsgsAuthors":false,"publicationDate":"2007-10-01","publicationStatus":"PW","scienceBaseUri":"5059e6dbe4b0c8380cd47696","contributors":{"authors":[{"text":"Wang, N.","contributorId":81615,"corporation":false,"usgs":true,"family":"Wang","given":"N.","email":"","affiliations":[],"preferred":false,"id":432101,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":432099,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hardesty, D.K.","contributorId":43935,"corporation":false,"usgs":true,"family":"Hardesty","given":"D.K.","email":"","affiliations":[],"preferred":false,"id":432098,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ivey, C.D.","contributorId":33876,"corporation":false,"usgs":true,"family":"Ivey","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":432097,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kunz, J.L.","contributorId":7872,"corporation":false,"usgs":true,"family":"Kunz","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":432094,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"May, T.W.","contributorId":75878,"corporation":false,"usgs":true,"family":"May","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":432100,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dwyer, F.J.","contributorId":107818,"corporation":false,"usgs":true,"family":"Dwyer","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":432105,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Roberts, A.D.","contributorId":87757,"corporation":false,"usgs":true,"family":"Roberts","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":432103,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Augspurger, T.","contributorId":81844,"corporation":false,"usgs":false,"family":"Augspurger","given":"T.","email":"","affiliations":[],"preferred":false,"id":432102,"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":432095,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Neves, R. J.","contributorId":30936,"corporation":false,"usgs":true,"family":"Neves","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":432096,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Barnhart, M.C.","contributorId":107410,"corporation":false,"usgs":true,"family":"Barnhart","given":"M.C.","affiliations":[],"preferred":false,"id":432104,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70033633,"text":"70033633 - 2007 - The importance of shallow confining units to submarine groundwater flow","interactions":[],"lastModifiedDate":"2017-10-04T15:28:30","indexId":"70033633","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The importance of shallow confining units to submarine groundwater flow","docAbstract":"In addition to variable density flow, the lateral and vertical heterogeneity of submarine sediments creates important controls on coastal aquifer systems. Submarine confining units produce semi-confined offshore aquifers that are recharged on shore. These low-permeability deposits are usually either late Pleistocene to Holocene in age, or date to the period of the last interglacial highstand. Extensive confining units consisting of peat form in tropical mangrove swamps, and in salt marshes and freshwater marshes and swamps at mid-latitudes. At higher latitudes, fine-grained glaciomarine sediments are widespread. The net effect of these shallow confining units is that groundwater from land often flows farther offshore before discharging than would normally be expected. In many settings, the presence of such confining units is critical to determining how and where pollutants from land will be discharged into coastal waters. Alternatively, these confining units may also protect fresh groundwater supplies from saltwater intrusion into coastal wells.","largerWorkTitle":"IAHS-AISH Publication","conferenceTitle":"International Symposium: A New Focus on Groundwater - Seawater Interactions - 24th General Assembly of the In","conferenceDate":"2 July 2007 through 13 July 2007","conferenceLocation":"Perugia","language":"English","issn":"01447","isbn":"9781901502046","usgsCitation":"Bratton, J., 2007, The importance of shallow confining units to submarine groundwater flow, in IAHS-AISH Publication, no. 312, Perugia, 2 July 2007 through 13 July 2007, p. 28-36.","productDescription":"9 p.","startPage":"28","endPage":"36","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":241988,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"312","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacfde4b08c986b3238d4","contributors":{"authors":[{"text":"Bratton, J.F.","contributorId":94354,"corporation":false,"usgs":true,"family":"Bratton","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":441775,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70033634,"text":"70033634 - 2007 - The importance of subsurface geology for water source and vegetation communities in Cherokee Marsh, Wisconsin","interactions":[],"lastModifiedDate":"2020-09-10T19:08:23.416541","indexId":"70033634","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"The importance of subsurface geology for water source and vegetation communities in Cherokee Marsh, Wisconsin","docAbstract":"Restoration of disturbed wetland systems is an important component of wetland mitigation, yet uncertainty remains about how hydrologic processes affect biologic processes and wetlands patterns. To design more effective restoration strategies and re-establish native plant communities in disturbed wetlands, it is imperative to understand undisturbed systems. A site within Cherokee Marsh located in Madison, Wisconsin, USA, contains a relatively undisturbed area of wetland consisting of plant communities common within the prairie landscape including a fen, sedge meadow, and shallow marsh. These distinct communities are found within an area of minimal topographic relief, yet transitions from one community to the next occur over short distances. This study sought to characterize the geologic, hydrologic, and chemical gradients associated with these shifts in vegetation to gain insight into the factors controlling the spatial differences in dominant plant species, which could be critical for restoration success. Vegetation analyses revealed a transition of dominant sedge species, which appeared to correspond to changes in hydrology from a ground-water dominated to a surface-water dominated system (as determined by water isotopes). Along the same vegetation transect, subsurface coring results show a heterogeneous composition of peat and till with lateral and vertical variations in stratigraphy, which relates to variability in ground-water discharge as evidenced by hydroperiods and stable isotope composition. Applications of this type of approach throughout the glaciated terrains of the midwestern and northeastern United States and Canada can improve future wetland restoration and management.
","doi":"10.1672/0277-5212(2007)27[189:TIOSGF]2.0.CO;2","usgsCitation":"Kurtz, A., Bahr, J., Carpenter, Q.J., and Hunt, R., 2007, The importance of subsurface geology for water source and vegetation communities in Cherokee Marsh, Wisconsin: Wetlands, v. 27, no. 1, p. 189-202, https://doi.org/10.1672/0277-5212(2007)27[189:TIOSGF]2.0.CO;2.","productDescription":"14 p.","startPage":"189","endPage":"202","numberOfPages":"14","costCenters":[],"links":[{"id":241989,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Cherokee Marsh","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -89.4015884399414,\n 43.137069765760344\n ],\n [\n -89.3579864501953,\n 43.1529763194357\n ],\n [\n -89.33446884155273,\n 43.162994070968374\n ],\n [\n -89.33378219604492,\n 43.18427633964703\n ],\n [\n -89.34288024902344,\n 43.19203626250746\n ],\n [\n -89.38013076782227,\n 43.18527767545014\n ],\n [\n -89.4063949584961,\n 43.158861947471785\n ],\n [\n -89.41188812255858,\n 43.14258116631987\n ],\n [\n -89.4093132019043,\n 43.1355665702956\n ],\n [\n -89.4015884399414,\n 43.13656870471118\n ],\n [\n -89.4015884399414,\n 43.137069765760344\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"27","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacffe4b08c986b3238e4","contributors":{"authors":[{"text":"Kurtz, A.M.","contributorId":74969,"corporation":false,"usgs":true,"family":"Kurtz","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":441779,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bahr, J.M.","contributorId":62346,"corporation":false,"usgs":true,"family":"Bahr","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":441778,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carpenter, Q. J.","contributorId":38743,"corporation":false,"usgs":false,"family":"Carpenter","given":"Q.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":441776,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hunt, Randal J. 0000-0001-6465-9304","orcid":"https://orcid.org/0000-0001-6465-9304","contributorId":52861,"corporation":false,"usgs":true,"family":"Hunt","given":"Randal J.","affiliations":[],"preferred":false,"id":441777,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"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":70031559,"text":"70031559 - 2007 - Tsunami inundation and sediment transport in vicinity of coastal mangrove forest","interactions":[],"lastModifiedDate":"2023-07-25T11:22:49.952899","indexId":"70031559","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Tsunami inundation and sediment transport in vicinity of coastal mangrove forest","docAbstract":"Field measurements from Sumatra of tsunami wave height, erosion and deposition form a comprehensive data set that is tested against the Delft3D tsunami inundation and sediment transport model. Relative agreement between measured and modeled maximum water levels and sediment erosion and accumulation provides confidence that the model is reasonably characterizing the important processes of tsunami inundation. Adding a component to account for vegetation, the model is used to explore the effects of fringing mangrove forests on tsunami inundation and sedimentation. In model experiments, mangrove forests modify the water levels and flow speeds reached during tsunami inundation. Simulations with a mangrove forest result in sedimentation in the forest and not erosion, as occurs in the base case with no forest. This difference in sedimentation is important because the change in profile shape increases wave energy reflection off the beach and decreases wave energy penetration onto land.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","conferenceDate":"May 13-17, 2007","conferenceLocation":"New Orleans, LA","language":"English","publisher":"ASCE","doi":"10.1061/40926(239)86","isbn":"0784409269; 9780784409268","usgsCitation":"Gelfenbaum, G., Vatvani, D., Jaffe, B., and Dekker, F., 2007, Tsunami inundation and sediment transport in vicinity of coastal mangrove forest, in Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, New Orleans, LA, May 13-17, 2007, https://doi.org/10.1061/40926(239)86.","costCenters":[],"links":[{"id":240036,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505bb8a9e4b08c986b3279c7","contributors":{"authors":[{"text":"Gelfenbaum, G.","contributorId":72429,"corporation":false,"usgs":true,"family":"Gelfenbaum","given":"G.","email":"","affiliations":[],"preferred":false,"id":432107,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vatvani, D.","contributorId":6336,"corporation":false,"usgs":true,"family":"Vatvani","given":"D.","affiliations":[],"preferred":false,"id":432106,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jaffe, B.","contributorId":78517,"corporation":false,"usgs":true,"family":"Jaffe","given":"B.","affiliations":[],"preferred":false,"id":432108,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dekker, F.","contributorId":89417,"corporation":false,"usgs":true,"family":"Dekker","given":"F.","email":"","affiliations":[],"preferred":false,"id":432109,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031562,"text":"70031562 - 2007 - Seabird behavior as an indicator of food supplies: Sensitivity across the breeding season","interactions":[],"lastModifiedDate":"2018-08-19T20:06:45","indexId":"70031562","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Seabird behavior as an indicator of food supplies: Sensitivity across the breeding season","docAbstract":"We used empirical data on the time allocation of common murres Uria aalge in relation to measures of local prey density to examine whether adults provisioning chicks are more sensitive to changes in prey density than birds that are incubating eggs. We hypothesized that seasonal differences in food requirements of incubating and chick-rearing parents would affect the form of the relationship between time spent at the colony and local food density. We found that the relationship did differ between the incubation and chick-rearing period in 3 important ways: (1) there was a strong non-linear relationship between food density and colony attendance during chick-rearing and a weaker relationship during incubation; (2) incubating birds were able to maintain relatively constant rates of attendance over a wider range of food densities than chick-rearing birds and only reduced colony attendance under extremely poor feeding conditions, if at all; and (3) incubating birds spent more time attending nest sites at the colony than provisioning birds. These differences confirmed that chick-rearing parents are more sensitive to changes in food density than incubating parents, and that measurements of time allocation during the incubation period would have limited value as an indicator of ecosystem change. ?? Inter-Research 2007.
","language":"English","publisher":"Inter-Research","doi":"10.3354/meps07072","issn":"01718630","usgsCitation":"Harding, A., Piatt, J.F., and Schmutz, J.A., 2007, Seabird behavior as an indicator of food supplies: Sensitivity across the breeding season: Marine Ecology Progress Series, v. 352, p. 269-274, https://doi.org/10.3354/meps07072.","productDescription":"6 p.","startPage":"269","endPage":"274","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476950,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps07072","text":"Publisher Index Page"},{"id":240072,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212569,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/meps07072"}],"volume":"352","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8823e4b08c986b3167fc","contributors":{"authors":[{"text":"Harding, A.M.A.","contributorId":29088,"corporation":false,"usgs":true,"family":"Harding","given":"A.M.A.","email":"","affiliations":[],"preferred":false,"id":432125,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":432126,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":432124,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031563,"text":"70031563 - 2007 - Coordinated analyses of orbital and spirit rover data to characterize surface materials on the cratered plains of Gusev Crater, Mars","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031563","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Coordinated analyses of orbital and spirit rover data to characterize surface materials on the cratered plains of Gusev Crater, Mars","docAbstract":"Comparison of the Mars Exploration Rover Spirit's Pancam (0.4 to 1.0 ??m) and Mars Express Observatoire pour la Mineralogie l'Eau, les Glaces et l'Activite?? (OMEGA) (0.4 to 2.5 ??m) spectral reflectance data over Spirit's traverses shows that Gusev cratered plains are dominated by nanophase ferric-oxide-rich dust covering weakly altered basaltic sands. This interpretation is also consistent with both observations from OMEGA data covering plains beyond the traverse region and interpretations of data from the other payload instruments on the Spirit Rover. OMEGA observations of relatively low albedo regions where dust has presumably been stripped by dust devils show negative spectral reflectance slopes from 1.5 to 2.5 ??m and moderately masked spectral features which are indicative of olivine or pyroxene. High-albedo regions north and south of the Spirit landing site have flat spectral reflectance slopes and few spectral features, although all spectra have a nanophase ferric-oxide absorption edge between 0.4 and 0.75 ??m. Comparison of THEMIS-derived thermal inertia values with OMEGA-derived spectral parameters shows that although the dust cover can be optically thick (0.4 to 2.5 ??m wavelength region) in some areas, it is not thick enough (???1 cm) to mask the thermal inertia of the underlying substrate for areas included in this study. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006JE002850","issn":"01480227","usgsCitation":"Lichtenberg, K., Arvidson, R., Poulet, F., Morris, R., Knudson, A., Bell, J., Bellucci, G., Bibring, J., Farrand, W.H., Johnson, J.R., Ming, D.W., Pinet, P., Rogers, A., and Squyres, S.W., 2007, Coordinated analyses of orbital and spirit rover data to characterize surface materials on the cratered plains of Gusev Crater, Mars: Journal of Geophysical Research E: Planets, v. 112, no. 12, https://doi.org/10.1029/2006JE002850.","costCenters":[],"links":[{"id":476951,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006je002850","text":"Publisher Index Page"},{"id":212570,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JE002850"},{"id":240073,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-12-29","publicationStatus":"PW","scienceBaseUri":"5059fbece4b0c8380cd4e031","contributors":{"authors":[{"text":"Lichtenberg, K.A.","contributorId":83337,"corporation":false,"usgs":true,"family":"Lichtenberg","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":432136,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arvidson, R. E.","contributorId":46666,"corporation":false,"usgs":true,"family":"Arvidson","given":"R. 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H.","contributorId":64372,"corporation":false,"usgs":true,"family":"Farrand","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":432134,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Johnson, J. R.","contributorId":69278,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":432135,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Ming, D. W.","contributorId":96811,"corporation":false,"usgs":true,"family":"Ming","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":432140,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Pinet, P.C.","contributorId":15014,"corporation":false,"usgs":true,"family":"Pinet","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":432128,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Rogers, A.D.","contributorId":84129,"corporation":false,"usgs":true,"family":"Rogers","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":432137,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Squyres, S. W.","contributorId":31836,"corporation":false,"usgs":true,"family":"Squyres","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":432129,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":70031565,"text":"70031565 - 2007 - Hypoxia tolerance of two centrarchid sunfishes and an introduced cichlid from karstic Everglades wetlands of southern Florida, U.S.A.","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031565","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2285,"text":"Journal of Fish Biology","active":true,"publicationSubtype":{"id":10}},"title":"Hypoxia tolerance of two centrarchid sunfishes and an introduced cichlid from karstic Everglades wetlands of southern Florida, U.S.A.","docAbstract":"In this study, the hypoxia tolerance of three Everglades fishes, two native centrarchids (Lepomis gulosus and Lepomis marginatus) and a recently introduced cichlid (Hemichromis letourneuxi), were documented. Aquatic surface respiration (ASR) thresholds were lowest for H. letourneuxi, followed by L. gulosus, then L. marginatus. The ASR thresholds for L. marginatus were within ranges reported for small, freshwater tropical fishes, while those for L. gulosus were similar to swamp-adapted fishes. For H. letourneuxi, ASR thresholds were some of the lowest reported. All three species showed excellent tolerance of low dissolved oxygen levels when allowed access to the surface. When denied surface access, L. marginatus lost equilibrium at a higher oxygen tension than the other species. Overall, although all species easily tolerated hypoxia, H. letourneuxi appeared to be best equipped to deal with hypoxia, followed by L. gulosus, then L. marginatus. Hemichromis letourneuxi also exhibited more aggressive behaviours than the centrarchids. These results suggest that hypoxia is not likely to prevent H. letourneuxi from exploiting the seasonally inundated wetlands of south Florida while expanding its range there.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Fish Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1095-8649.2007.01686.x","issn":"00221112","usgsCitation":"Schofield, P., Loftus, W., and Brown, M., 2007, Hypoxia tolerance of two centrarchid sunfishes and an introduced cichlid from karstic Everglades wetlands of southern Florida, U.S.A.: Journal of Fish Biology, v. 71, no. SUPPL. D, p. 87-99, https://doi.org/10.1111/j.1095-8649.2007.01686.x.","startPage":"87","endPage":"99","numberOfPages":"13","costCenters":[],"links":[{"id":240110,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212602,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1095-8649.2007.01686.x"}],"volume":"71","issue":"SUPPL. D","noUsgsAuthors":false,"publicationDate":"2007-12-12","publicationStatus":"PW","scienceBaseUri":"505a37c2e4b0c8380cd6112e","contributors":{"authors":[{"text":"Schofield, P. J. 0000-0002-8752-2797","orcid":"https://orcid.org/0000-0002-8752-2797","contributorId":80215,"corporation":false,"usgs":true,"family":"Schofield","given":"P. J.","affiliations":[],"preferred":false,"id":432147,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loftus, W.F.","contributorId":29363,"corporation":false,"usgs":true,"family":"Loftus","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":432146,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, M.E.","contributorId":99680,"corporation":false,"usgs":true,"family":"Brown","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":432148,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031566,"text":"70031566 - 2007 - Radiometric calibration status of Landsat-7 and Landsat-5","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70031566","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Radiometric calibration status of Landsat-7 and Landsat-5","docAbstract":"Launched in April 1999, Landsat-7 ETM+ continues to acquire data globally. The Scan Line Corrector in failure in 2003 has affected ground coverage and the recent switch to Bumper Mode operations in April 2007 has degraded the internal geometric accuracy of the data, but the radiometry has been unaffected. The best of the three on-board calibrators for the reflective bands, the Full Aperture Solar Calibrator, has indicated slow changes in the ETM+, but this is believed to be due to contamination on the panel rather then instrument degradation. The Internal Calibrator lamp 2, though it has not been used regularly throughout the whole mission, indicates smaller changes than the FASC since 2003. The changes indicated by lamp 2 are only statistically significant in band 1, circa 0.3% per year, and may be lamp as opposed to instrument degradations. Regular observations of desert targets in the Saharan and Arabian deserts indicate the no change in the ETM+ reflective band response, though the uncertainty is larger and does not preclude the small changes indicated by lamp 2. The thermal band continues to be stable and well-calibrated since an offset error was corrected in late-2000. Launched in 1984, Landsat-5 TM also continues to acquire global data; though without the benefit of an on-board recorder, data can only be acquired where a ground station is within range. Historically, the calibration of the TM reflective bands has used an onboard calibration system with multiple lamps. The calibration procedure for the TM reflective bands was updated in 2003 based on the best estimate at the time, using only one of the three lamps and a cross-calibration with Landsat-7 ETM+. Since then, the Saharan desert sites have been used to validate this calibration model. Problems were found with the lamp based model of up to 13% in band 1. Using the Saharan data, a new model was developed and implemented in the US processing system in April 2007. The TM thermal band was found to have a calibration offset error of 0.092 W/m 2 sr ??m (0.68K at 300K) based on vicarious calibration data between 1999 and 2006. The offset error was corrected in the US processing system on April 2007 for all data acquired since April 1999.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"Sensors, Systems, and Next-Generation Satellites XI","conferenceDate":"17 September 2007 through 20 September 2007","conferenceLocation":"Florence","language":"English","doi":"10.1117/12.738221","issn":"0277786X","isbn":"9780819469021","usgsCitation":"Barsi, J., Markham, B.L., Helder, D., and Chander, G., 2007, Radiometric calibration status of Landsat-7 and Landsat-5, in Proceedings of SPIE - The International Society for Optical Engineering, v. 6744, Florence, 17 September 2007 through 20 September 2007, https://doi.org/10.1117/12.738221.","costCenters":[],"links":[{"id":212629,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.738221"},{"id":240144,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6744","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a940fe4b0c8380cd8119c","contributors":{"authors":[{"text":"Barsi, J. A.","contributorId":24085,"corporation":false,"usgs":true,"family":"Barsi","given":"J. A.","affiliations":[],"preferred":false,"id":432149,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Markham, B. L.","contributorId":88872,"corporation":false,"usgs":true,"family":"Markham","given":"B.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":432152,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Helder, D. L. 0000-0002-7379-4679","orcid":"https://orcid.org/0000-0002-7379-4679","contributorId":51496,"corporation":false,"usgs":true,"family":"Helder","given":"D. L.","affiliations":[],"preferred":false,"id":432151,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chander, G.","contributorId":51449,"corporation":false,"usgs":true,"family":"Chander","given":"G.","affiliations":[],"preferred":false,"id":432150,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031568,"text":"70031568 - 2007 - Intersex (Testicular Oocytes) in smallmouth bass from the Potomac River and selected nearby drainages","interactions":[],"lastModifiedDate":"2018-10-17T13:41:04","indexId":"70031568","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2177,"text":"Journal of Aquatic Animal Health","active":true,"publicationSubtype":{"id":10}},"title":"Intersex (Testicular Oocytes) in smallmouth bass from the Potomac River and selected nearby drainages","docAbstract":"Intersex, or the presence of characteristics of both sexes, in fishes that are normally gonochoristic has been used as an indicator of exposure to estrogenic compounds. In 2003, during health assessments conducted in response to kills and a high prevalence of skin lesions observed in smallmouth bass Micropterus dolomieu in the South Branch of the Potomac River, the presence of immature oocytes within testes was noted. To evaluate this condition, a severity index (0-4) was developed based on the distribution of oocytes within the testes. Using gonad samples collected from 2003 to 2005, the number of histologic sections needed to accurately detect the condition in mature smallmouth bass was statistically evaluated. The reliability of detection depended on the severity index and the number of sections examined. Examining five transverse sections taken along the length of the gonad resulted in a greater than 90% probability of detecting testicular oocytes when the severity index exceeded 0.5. Using the severity index we compared smallmouth bass collected at selected sites within the South Branch during three seasons in 2004. Seasonal differences in severity and prevalence were observed. The highest prevalence and severity were consistently noted during the prespawn-spawning season, when compared with the postspawn season. In 2005, smallmouth bass were collected at selected out-of-basin sites in West Virginia where fish kills and external skin lesions have not been reported, as well as at sites in the Shenandoah River, Virginia (part of the Potomac drainage), where kills and lesions occurred in 2004-2005. The prevalence of testicular oocytes is discussed in terms of human population and agricultural intensity.
","language":"English","publisher":"Taylor and Francis","doi":"10.1577/H07-031.1","issn":"08997659","usgsCitation":"Blazer, V., Iwanowicz, L., Iwanowicz, D.D., Smith, D.R., Young, J.A., Hedrick, J., Foster, S., and Reeser, S., 2007, Intersex (Testicular Oocytes) in smallmouth bass from the Potomac River and selected nearby drainages: Journal of Aquatic Animal Health, v. 19, no. 4, p. 242-253, https://doi.org/10.1577/H07-031.1.","productDescription":"12 p.","startPage":"242","endPage":"253","numberOfPages":"12","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":239631,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Potomac River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -79.6893310546875,\n 38.052416771864834\n ],\n [\n -79.6893310546875,\n 39.8928799002948\n ],\n [\n -77.080078125,\n 39.8928799002948\n ],\n [\n -77.080078125,\n 38.052416771864834\n ],\n [\n -79.6893310546875,\n 38.052416771864834\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"19","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-12-01","publicationStatus":"PW","scienceBaseUri":"505a3da7e4b0c8380cd63722","contributors":{"authors":[{"text":"Blazer, Vicki S. 0000-0001-6647-9614 vblazer@usgs.gov","orcid":"https://orcid.org/0000-0001-6647-9614","contributorId":149414,"corporation":false,"usgs":true,"family":"Blazer","given":"Vicki S.","email":"vblazer@usgs.gov","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":432162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Iwanowicz, Luke R. 0000-0002-1197-6178 liwanowicz@usgs.gov","orcid":"https://orcid.org/0000-0002-1197-6178","contributorId":150383,"corporation":false,"usgs":true,"family":"Iwanowicz","given":"Luke R. ","email":"liwanowicz@usgs.gov","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":432160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Iwanowicz, Deborah D. 0000-0002-9613-8594 diwanowicz@usgs.gov","orcid":"https://orcid.org/0000-0002-9613-8594","contributorId":2253,"corporation":false,"usgs":true,"family":"Iwanowicz","given":"Deborah","email":"diwanowicz@usgs.gov","middleInitial":"D.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":432163,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, David R. 0000-0001-6074-9257 drsmith@usgs.gov","orcid":"https://orcid.org/0000-0001-6074-9257","contributorId":168442,"corporation":false,"usgs":true,"family":"Smith","given":"David","email":"drsmith@usgs.gov","middleInitial":"R.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":432161,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Young, John A. 0000-0002-4500-3673 jyoung@usgs.gov","orcid":"https://orcid.org/0000-0002-4500-3673","contributorId":3777,"corporation":false,"usgs":true,"family":"Young","given":"John","email":"jyoung@usgs.gov","middleInitial":"A.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":432159,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hedrick, J.D.","contributorId":105511,"corporation":false,"usgs":true,"family":"Hedrick","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":432164,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Foster, S.W.","contributorId":36753,"corporation":false,"usgs":true,"family":"Foster","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":432158,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Reeser, S.J.","contributorId":9460,"corporation":false,"usgs":true,"family":"Reeser","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":432157,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70033644,"text":"70033644 - 2007 - Effect of an offshore sinkhole perforation in a coastal confined aquifer on submarine groundwater discharge","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033644","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Effect of an offshore sinkhole perforation in a coastal confined aquifer on submarine groundwater discharge","docAbstract":"In order to explore submarine groundwater discharge in the vicinity of karst features that penetrate the confining layer of an offshore, partially confined aquifer, we constructed a three-dimensional groundwater model using the SUTRA (Saturated-Unsaturated TRAnsport) variable-density groundwater flow model. We ran a parameter sensitivity analysis, testing the effects of recharge rates, permeabilities of the aquifer and confining layer, and thickness of the confining layer. In all simulations, less than 20% of the freshwater recharge for the entire model exits through the sinkhole. Recirculated seawater usually accounts for 10-30% of the total outflow from the model. Often, the sinkhole lies seaward of the transition zone and acts as a recharge feature for recirculating seawater. The permeability ratio between aquifer and confining layer influences the configuration of the freshwater wedge the most; as confining layer permeability decreases, the wedge lengthens and the fraction of total discharge exiting through the sinkhole increases. Copyright ?? 2007 IAHS Press.","largerWorkTitle":"IAHS-AISH Publication","conferenceTitle":"International Symposium: A New Focus on Groundwater - Seawater Interactions - 24th General Assembly of the In","conferenceDate":"2 July 2007 through 13 July 2007","conferenceLocation":"Perugia","language":"English","issn":"01447","isbn":"9781901502046","usgsCitation":"Fratesi, S., Leonard, V., and Sanford, W., 2007, Effect of an offshore sinkhole perforation in a coastal confined aquifer on submarine groundwater discharge, in IAHS-AISH Publication, no. 312, Perugia, 2 July 2007 through 13 July 2007, p. 256-263.","startPage":"256","endPage":"263","numberOfPages":"8","costCenters":[],"links":[{"id":242160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"312","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a05bee4b0c8380cd50f24","contributors":{"authors":[{"text":"Fratesi, S.E.","contributorId":74971,"corporation":false,"usgs":true,"family":"Fratesi","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":441814,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leonard, V.","contributorId":32741,"corporation":false,"usgs":true,"family":"Leonard","given":"V.","email":"","affiliations":[],"preferred":false,"id":441813,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sanford, W. E. 0000-0002-6624-0280","orcid":"https://orcid.org/0000-0002-6624-0280","contributorId":102112,"corporation":false,"usgs":true,"family":"Sanford","given":"W. E.","affiliations":[],"preferred":false,"id":441815,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031570,"text":"70031570 - 2007 - Geoarchaeology of stratified paleoindian deposits at the Big Eddy site, Southwest Missouri, U.S.A","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031570","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1749,"text":"Geoarchaeology","active":true,"publicationSubtype":{"id":10}},"title":"Geoarchaeology of stratified paleoindian deposits at the Big Eddy site, Southwest Missouri, U.S.A","docAbstract":"The Big Eddy site (23CE426) in the Sac River valley of southwest Missouri is a rare recorded example of distinctly stratified Early through Late Paleoindian cultural deposits. Early point types recovered from the site include Gainey, Sedgwick, Dalton (fluted and unfluted), San Patrice, Wilson, and Packard. The Paleoindian record at Big Eddy represents only a fraction of the site's prehistoric cultural record; stratified cultural deposits in alluvium above the Paleoindian components span the entire known prehistoric sequence, and terminal Pleistocene alluvium may contain pre-Early Paleoindian cultural deposits. This study focused on the paleogeomorphic setting, stratigraphy, depositional environments, pedology, geochronology, and history of landscape evolution of the late Pleistocene and early Holocene alluvium at the site. The Paleoindian sequence is associated with a complex buried soil 2.85 m below the modern surface (T1a) of the first terrace of the Sac River valley in the site vicinity. This soil formed at the top of the early submember of the Rodgers Shelter Member (underlying the T1c paleogeomorphic surface) and contains at least 70 cm of stratified Paleoindian cultural deposits, all in floodplain and upper point-bar facies. A suite of 36 radiocarbon ages indicates that the alluvium hosting the Paleoindian sequence aggraded between ca. 13,250 and 11,870 cal yr B.P. (11,380 and 10,180 14C yr B.P.). Underlying deposits accumulated between ca. 15,300 and 13,250 cal yr B.P. (12,950 and 11,380 14C yr B.P.). By ca. 11,250 cal yr B.P. (9,840 14C yr B.P.) the T1c paleogeomorphic surface was buried by the earliest increment of a thick sequence of overbank sheetflood facies, ultimately resulting in deep burial and preservation of the Paleoindian record. The landform-sediment assemblage that hosts the Paleoindian and possibly earlier cultural deposits at Big Eddy is both widespread and well preserved in the lower Sac River valley. Moreover, the terminal Pleistocene and early Holocene depositional environments were favorable for the preservation of the archaeological record. ?? 2007 Wiley Periodicals, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geoarchaeology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/gea.20200","issn":"08836353","usgsCitation":"Hajic, E., Mandel, R., Ray, J., and Lopinot, N., 2007, Geoarchaeology of stratified paleoindian deposits at the Big Eddy site, Southwest Missouri, U.S.A: Geoarchaeology, v. 22, no. 8, p. 891-934, https://doi.org/10.1002/gea.20200.","startPage":"891","endPage":"934","numberOfPages":"44","costCenters":[],"links":[{"id":212211,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/gea.20200"},{"id":239664,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-11-07","publicationStatus":"PW","scienceBaseUri":"505a1599e4b0c8380cd54ebb","contributors":{"authors":[{"text":"Hajic, E.R.","contributorId":64026,"corporation":false,"usgs":true,"family":"Hajic","given":"E.R.","email":"","affiliations":[],"preferred":false,"id":432171,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mandel, R.D.","contributorId":58000,"corporation":false,"usgs":true,"family":"Mandel","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":432170,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ray, J.H.","contributorId":42038,"corporation":false,"usgs":true,"family":"Ray","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":432169,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lopinot, N.H.","contributorId":31577,"corporation":false,"usgs":true,"family":"Lopinot","given":"N.H.","email":"","affiliations":[],"preferred":false,"id":432168,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031571,"text":"70031571 - 2007 - Climate and floods still govern California levee breaks","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031571","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Climate and floods still govern California levee breaks","docAbstract":"Even in heavily engineered river systems, climate still governs flood variability and thus still drives many levee breaks and geomorphic changes. We assemble a 155-year record of levee breaks for a major California river system to find that breaks occurred in 25% of years during the 20th Century. A relation between levee breaks and river discharge is present that sets a discharge threshold above which most levee breaks occurred. That threshold corresponds to small floods with recurrence intervals of ???2-3 years. Statistical analysis illustrates that levee breaks and peak discharges cycle (broadly) on a 12-15 year time scale, in time with warm-wet storm patterns in California, but more slowly or more quickly than ENSO and PDO climate phenomena, respectively. Notably, these variations and thresholds persist through the 20th Century, suggesting that historical flood-control effects have not reduced the occurrence or frequency of levee breaks. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL031702","issn":"00948276","usgsCitation":"Florsheim, J., and Dettinger, M.D., 2007, Climate and floods still govern California levee breaks: Geophysical Research Letters, v. 34, no. 22, https://doi.org/10.1029/2007GL031702.","costCenters":[],"links":[{"id":476948,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl031702","text":"Publisher Index Page"},{"id":212212,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL031702"},{"id":239665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"22","noUsgsAuthors":false,"publicationDate":"2007-11-21","publicationStatus":"PW","scienceBaseUri":"5059f648e4b0c8380cd4c66d","contributors":{"authors":[{"text":"Florsheim, J.L.","contributorId":101876,"corporation":false,"usgs":true,"family":"Florsheim","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":432173,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dettinger, M. D. 0000-0002-7509-7332","orcid":"https://orcid.org/0000-0002-7509-7332","contributorId":93069,"corporation":false,"usgs":false,"family":"Dettinger","given":"M.","middleInitial":"D.","affiliations":[{"id":16196,"text":"Scripps Institution of Oceanography, La Jolla, CA","active":true,"usgs":false}],"preferred":false,"id":432172,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031573,"text":"70031573 - 2007 - Effects of flow fluctuations on the spawning habitat of a riverine fish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031573","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3444,"text":"Southeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Effects of flow fluctuations on the spawning habitat of a riverine fish","docAbstract":"Shallow-water, lithophilic spawning fishes are among the most vulnerable to anthropogenic fluctuations in water levels. We monitored water levels and environmental conditions at the nest sites of Moxostoma robustum (Robust Redhorse) on a main-channel gravel bar in the Savannah River, GA-SC During the course of the 2005 spawning season, over 50% of the observed nest sites were either completely dewatered or left in near zero-flow conditions for several days. This occurred on two separate occasions, once early during the spawning season and then again near its conclusion. We hypothesize the habitat preferences of spawning Robust Redhorse leave them vulnerable to water-level fluctuations, and this phenomenon may be widespread in regulated river systems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southeastern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2","issn":"15287092","usgsCitation":"Grabowski, T., and Isely, J.J., 2007, Effects of flow fluctuations on the spawning habitat of a riverine fish: Southeastern Naturalist, v. 6, no. 3, p. 471-478, https://doi.org/10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2.","startPage":"471","endPage":"478","numberOfPages":"8","costCenters":[],"links":[{"id":212243,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2"},{"id":239701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a06f7e4b0c8380cd514d8","contributors":{"authors":[{"text":"Grabowski, T.B.","contributorId":48362,"corporation":false,"usgs":true,"family":"Grabowski","given":"T.B.","email":"","affiliations":[],"preferred":false,"id":432180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Isely, J. Jeffery","contributorId":97224,"corporation":false,"usgs":true,"family":"Isely","given":"J.","email":"","middleInitial":"Jeffery","affiliations":[],"preferred":false,"id":432181,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031574,"text":"70031574 - 2007 - Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae)","interactions":[],"lastModifiedDate":"2017-05-22T16:12:47","indexId":"70031574","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":"Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae)","docAbstract":"Water quality data were collected from three drainages supporting the endangered Carolina heelsplitter (Lasmigona decorata) and dwarf wedgemussel (Alasmidonta heterodon) to determine the potential for impaired water quality to limit the recovery of these freshwater mussels in North Carolina, USA. Total recoverable copper, total residual chlorine, and total ammonia nitrogen were measured every two months for approximately a year at sites bracketing wastewater sources and mussel habitat. These data and state monitoring datasets were compared with ecological screening values, including estimates of chemical concentrations likely to be protective of mussels, and federal ambient water quality criteria to assess site risks following a hazard quotient approach. In one drainage, the site-specific ammonia ecological screening value for acute exposures was exceeded in 6% of the samples, and 15% of samples exceeded the chronic ecological screening value; however, ammonia concentrations were generally below levels of concern in other drainages. In all drainages, copper concentrations were higher than ecological screening values most frequently (exceeding the ecological screening values for acute exposures in 65-94% of the samples). Chlorine concentrations exceeding the acute water quality criterion were observed in 14 and 35% of samples in two of three drainages. The ecological screening values were exceeded most frequently in Goose Creek and the Upper Tar River drainages; concentrations rarely exceeded ecological screening values in the Swift Creek drainage except for copper. The site-specific risk assessment approach provides valuable information (including site-specific risk estimates and ecological screening values for protection) that can be applied through regulatory and nonregulatory means to improve water quality for mussels where risks are indicated and pollutant threats persist. ?? 2007 SETAC.
","language":"English","publisher":"Wiley","doi":"10.1897/06-561R.1","issn":"07307268","usgsCitation":"Ward, S., Augspurger, T., Dwyer, F., Kane, C., and Ingersoll, C., 2007, Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae): Environmental Toxicology and Chemistry, v. 26, no. 10, p. 2075-2085, https://doi.org/10.1897/06-561R.1.","productDescription":"11 p.","startPage":"2075","endPage":"2085","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":239732,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212270,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-561R.1"}],"country":"United States","state":"North Carolina","otherGeospatial":"Goose Creek, Swift Creek, Tar River basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.75225830078125,\n 35.25795517382968\n ],\n [\n -80.4583740234375,\n 35.19625600786368\n ],\n [\n -80.782470703125,\n 34.93885938523973\n ],\n [\n -80.93215942382812,\n 35.108674964507586\n ],\n [\n -80.75225830078125,\n 35.25795517382968\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -78.82278442382812,\n 36.53722603815998\n ],\n [\n -78.36135864257812,\n 36.542742833547834\n ],\n [\n -78.44100952148438,\n 36.33725319397006\n ],\n [\n -78.52890014648436,\n 36.1822249804225\n ],\n [\n -79.00405883789061,\n 36.18333341549503\n ],\n [\n -78.98757934570312,\n 36.54163950596125\n ],\n [\n -78.82278442382812,\n 36.53722603815998\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.33551025390624,\n 35.41031879581839\n ],\n [\n -77.25414276123047,\n 35.36917533446543\n ],\n [\n -77.20882415771484,\n 35.36721559854914\n ],\n [\n -77.15663909912108,\n 35.31512519050729\n ],\n [\n -77.09449768066406,\n 35.2172950850141\n ],\n [\n -77.07630157470703,\n 35.19569489118943\n ],\n [\n -77.09587097167969,\n 35.19204753833417\n ],\n [\n -77.16659545898438,\n 35.28009933253644\n ],\n [\n -77.2184371948242,\n 35.33977430038646\n ],\n [\n -77.27405548095703,\n 35.35041591050917\n ],\n [\n -77.34752655029297,\n 35.3960469114653\n ],\n [\n -77.35164642333983,\n 35.41087842606998\n ],\n [\n -77.33551025390624,\n 35.41031879581839\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"26","issue":"10","noUsgsAuthors":false,"publicationDate":"2007-10-01","publicationStatus":"PW","scienceBaseUri":"505aad90e4b0c8380cd86f14","contributors":{"authors":[{"text":"Ward, S.","contributorId":98945,"corporation":false,"usgs":true,"family":"Ward","given":"S.","affiliations":[],"preferred":false,"id":432184,"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":432183,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dwyer, F.J.","contributorId":107818,"corporation":false,"usgs":true,"family":"Dwyer","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":432186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kane, C.","contributorId":101083,"corporation":false,"usgs":true,"family":"Kane","given":"C.","email":"","affiliations":[],"preferred":false,"id":432185,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"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":432182,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031576,"text":"70031576 - 2007 - Survival and breeding advantages of larger Black Brant (Branta bernicla nigricans) goslings: Within- and among-cohort variation","interactions":[],"lastModifiedDate":"2017-05-08T13:01:11","indexId":"70031576","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":"Survival and breeding advantages of larger Black Brant (Branta bernicla nigricans) goslings: Within- and among-cohort variation","docAbstract":"We examined the relationship between mass late in the first summer and survival and return to the natal breeding colony for 12 cohorts (1986-1997) of female Black Brant (Branta bernicla nigricans). We used Cormack-Jolly-Seber methods and the program MARK to analyze capture-recapture data. Models included two kinds of residuals from regressions of mass on days after peak of hatch when goslings were measured; one based on the entire sample (12 cohorts) and the other based only on individuals in the same cohort. Some models contained date of peak of hatch (a group covariate related to lateness of nesting in that year) and mean cohort residual mass. Finally, models allowed survival to vary among cohorts. The best model of encounter probability included an effect of residual mass on encounter probability and allowed encounter probability to vary among age classes and across years. All competitive models contained an effect of one of the estimates of residual mass; relatively larger goslings survived their first year at higher rates. Goslings in cohorts from later years in the analysis tended to have lower first-year survival, after controlling for residual mass, which reflected the generally smaller mean masses for these cohorts but was potentially also a result of population-density effects additional to those on growth. Variation among cohorts in mean mass accounted for 56% of variation among cohorts in first-year survival. Encounter probabilities, which were correlated with breeding probability, increased with relative mass, which suggests that larger goslings not only survived at higher rates but also bred at higher rates. Although our findings support the well-established linkage between gosling mass and fitness, they suggest that additional environmental factors also influence first-year survival.
","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2007)124[1281:SABAOL]2.0.CO;2","issn":"00048038","usgsCitation":"Sedinger, J., and Chelgren, N., 2007, Survival and breeding advantages of larger Black Brant (Branta bernicla nigricans) goslings: Within- and among-cohort variation: The Auk, v. 124, no. 4, p. 1281-1293, https://doi.org/10.1642/0004-8038(2007)124[1281:SABAOL]2.0.CO;2.","productDescription":"13 p.","startPage":"1281","endPage":"1293","costCenters":[],"links":[{"id":492042,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/0004-8038(2007)124[1281:sabaol]2.0.co;2","text":"Publisher Index Page"},{"id":239766,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba2ace4b08c986b31f893","contributors":{"authors":[{"text":"Sedinger, J.S.","contributorId":75471,"corporation":false,"usgs":true,"family":"Sedinger","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":432193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chelgren, N.D. 0000-0003-0944-9165","orcid":"https://orcid.org/0000-0003-0944-9165","contributorId":13387,"corporation":false,"usgs":true,"family":"Chelgren","given":"N.D.","affiliations":[],"preferred":false,"id":432192,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030136,"text":"70030136 - 2007 - Genetic variability in spotted seatrout (Cynoscion nebulosus), determined with microsatellite DNA markers","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030136","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1663,"text":"Fishery Bulletin","printIssn":"0090-0656","active":true,"publicationSubtype":{"id":10}},"title":"Genetic variability in spotted seatrout (Cynoscion nebulosus), determined with microsatellite DNA markers","docAbstract":"Variation in the allele frequencies of five microsatellite loci was surveyed in 1256 individual spotted seatrout (Cynoscion nebulosus) obtained from 12 bays and estuaries from Laguna Madre, Texas, to Charlotte Harbor, Florida, to St. John's River on the Florida Atlantic Coast. Texas and Louisiana collection sites were resampled each year for two to four years (1998-2001). Genetic differentiation was observed. Spotted seatrout from Florida waters were strongly differentiated from spotted seatrout collected in Louisiana and Texas. The greatest genetic discontinuity was observed between Tampa Bay and Charlotte Harbor, and Charlotte Harbor seatrout were most similar to Atlantic Coast spotted seatrout. Texas and Louisiana samples were not strongly structured within the northwestern Gulf of Mexico and there was little evidence of temporal differentiation within bays. These findings are contrary to those of earlier analyses with allozymes and mitochondrial DNA (mtDNA) where evidence of spatial differentiation was found for spotted seatrout resident on the Texas coast. The differences in genetic structure observed among these markers may reflect differences in response to selective pressure, or may be due to differences in underlying genetic processes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fishery Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00900656","usgsCitation":"Ward, R., Bowers, K., Hensley, R., Mobley, B., and Belouski, E., 2007, Genetic variability in spotted seatrout (Cynoscion nebulosus), determined with microsatellite DNA markers: Fishery Bulletin, v. 105, no. 2, p. 197-206.","startPage":"197","endPage":"206","numberOfPages":"10","costCenters":[],"links":[{"id":240264,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a158ae4b0c8380cd54e72","contributors":{"authors":[{"text":"Ward, R.","contributorId":19111,"corporation":false,"usgs":true,"family":"Ward","given":"R.","affiliations":[],"preferred":false,"id":425848,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bowers, K.","contributorId":76137,"corporation":false,"usgs":true,"family":"Bowers","given":"K.","email":"","affiliations":[],"preferred":false,"id":425852,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hensley, R.","contributorId":57663,"corporation":false,"usgs":true,"family":"Hensley","given":"R.","email":"","affiliations":[],"preferred":false,"id":425851,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mobley, B.","contributorId":56041,"corporation":false,"usgs":true,"family":"Mobley","given":"B.","email":"","affiliations":[],"preferred":false,"id":425850,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Belouski, E.","contributorId":27264,"corporation":false,"usgs":true,"family":"Belouski","given":"E.","email":"","affiliations":[],"preferred":false,"id":425849,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031585,"text":"70031585 - 2007 - Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031585","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin","docAbstract":"We assessed the impact of predation by smallmouth bass Micropterus dolomieu and largemouth bass M. salmoides on juveniles of federally listed Chinook salmon Oncorhynchus tshawytscha and other anadromous salmonid populations in the Lake Washington system. Bass were collected with boat electrofishing equipment in the south end of Lake Washington (February-June) and the Lake Washington Ship Canal (LWSC; April-July), a narrow waterway that smolts must migrate through to reach the marine environment. Genetic analysis was used to identify ingested salmonids to obtain a more precise species-specific consumption estimate. Overall, we examined the stomachs of 783 smallmouth bass and 310 largemouth bass greater than 100 mm fork length (FL). Rates of predation on salmonids in the south end of Lake Washington were generally low for both black bass species. In the LWSC, juvenile salmonids made up a substantial part of bass diets; consumption of salmonids was lower for largemouth bass than for smallmouth bass. Smallmouth bass predation on juvenile salmonids was greatest in June, when salmonids made up approximately 50% of their diet. In the LWSC, overall black bass consumption of salmonids was approximately 36,000 (bioenergetics model) to 46,000 (meal turnover consumption model) juveniles, of which about one-third was juvenile Chinook salmon, one-third was coho salmon O. kisutch, and one-third was sockeye salmon O. nerka. We estimated that about 2,460,000 juvenile Chinook salmon (hatchery and wild sources combined) were produced in the Lake Washington basin in 1999; thus, the mortality estimates in the LWSC range from 0.5% (bioenergetics) to 0.6% (meal turnover). Black bass prey mostly on subyearlings of each salmonid species. The vulnerability of subyearlings to predation can be attributed to their relatively small size; their tendency to migrate when water temperatures exceed 15??C, coinciding with greater black bass activity; and their use of nearshore areas, where overlap with black bass is greatest. We conclude that under current conditions, predation by smallmouth bass and largemouth bass has a minor impact on Chinook salmon and other salmonid populations in the Lake Washington system. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M05-221.1","issn":"02755947","usgsCitation":"Tabor, R., Footen, B., Fresh, K., Celedonia, M., Mejia, F., Low, D., and Park, L., 2007, Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin: North American Journal of Fisheries Management, v. 27, no. 4, p. 1174-1188, https://doi.org/10.1577/M05-221.1.","startPage":"1174","endPage":"1188","numberOfPages":"15","costCenters":[],"links":[{"id":239934,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212445,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-221.1"}],"volume":"27","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-11-01","publicationStatus":"PW","scienceBaseUri":"505b91a2e4b08c986b3199ec","contributors":{"authors":[{"text":"Tabor, R.A.","contributorId":17044,"corporation":false,"usgs":true,"family":"Tabor","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":432221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Footen, B.A.","contributorId":8676,"corporation":false,"usgs":true,"family":"Footen","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":432219,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fresh, K.L.","contributorId":105916,"corporation":false,"usgs":true,"family":"Fresh","given":"K.L.","affiliations":[],"preferred":false,"id":432225,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Celedonia, M.T.","contributorId":10619,"corporation":false,"usgs":true,"family":"Celedonia","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":432220,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mejia, F.","contributorId":73011,"corporation":false,"usgs":true,"family":"Mejia","given":"F.","email":"","affiliations":[],"preferred":false,"id":432224,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Low, D.L.","contributorId":20976,"corporation":false,"usgs":true,"family":"Low","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":432222,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Park, L.","contributorId":36269,"corporation":false,"usgs":true,"family":"Park","given":"L.","email":"","affiliations":[],"preferred":false,"id":432223,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70031586,"text":"70031586 - 2007 - High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031586","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3075,"text":"Physiological and Biochemical Zoology","active":true,"publicationSubtype":{"id":10}},"title":"High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea","docAbstract":"We measured water flux and energy expenditure in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea by using the doubly labeled water method. Previous laboratory investigations have suggested weak urinary concentrating ability, high rates of water flux, and low basal metabolic rates in this species. However, free-ranging measurements from hygric mammals are rare, and it is not known how these features interact in the environment. Rates of water flux (210 ?? 32 mL d-1) and field metabolic rates (1,488 ?? 486 kJ d-1) were 159% and 265%, respectively, of values predicted by allometric equations for similar-sized herbivores. Mountain beavers can likely meet their water needs through metabolic water production and preformed water in food and thus remain in water balance without access to free water. Arginine-vasopressin levels were strongly correlated with rates of water flux and plasma urea : creatinine ratios, suggesting an important role for this hormone in regulating urinary water loss in mountain beavers. High field metabolic rates may result from cool burrow temperatures that are well below lower critical temperatures measured in previous laboratory studies and suggest that thermoregulation costs may strongly influence field energetics and water flux in semifossorial mammals. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Physiological and Biochemical Zoology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/521204","issn":"15222152","usgsCitation":"Crocker, D., Kofahl, N., Fellers, G., Gates, N., and Houser, D., 2007, High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea: Physiological and Biochemical Zoology, v. 80, no. 6, p. 635-642, https://doi.org/10.1086/521204.","startPage":"635","endPage":"642","numberOfPages":"8","costCenters":[],"links":[{"id":477228,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10211.3/123164","text":"External Repository"},{"id":239935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212446,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/521204"}],"volume":"80","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30c6e4b0c8380cd5d936","contributors":{"authors":[{"text":"Crocker, D.E.","contributorId":103084,"corporation":false,"usgs":true,"family":"Crocker","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":432229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kofahl, N.","contributorId":9068,"corporation":false,"usgs":true,"family":"Kofahl","given":"N.","email":"","affiliations":[],"preferred":false,"id":432226,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fellers, G.D.","contributorId":33922,"corporation":false,"usgs":true,"family":"Fellers","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":432227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gates, N.B.","contributorId":104708,"corporation":false,"usgs":true,"family":"Gates","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":432230,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Houser, D.S.","contributorId":45117,"corporation":false,"usgs":true,"family":"Houser","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":432228,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}