{"pageNumber":"237","pageRowStart":"5900","pageSize":"25","recordCount":10465,"records":[{"id":70030088,"text":"70030088 - 2007 - Migration of bats past a remote island offers clues toward the problem of bat fatalities at wind turbines","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70030088","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Migration of bats past a remote island offers clues toward the problem of bat fatalities at wind turbines","docAbstract":"Wind energy is rapidly becoming a viable source of alternative energy, but wind turbines are killing bats in many areas of North America. Most of the bats killed by turbines thus far have been migratory species that roost in trees throughout the year, and the highest fatality events appear to coincide with autumn migration. Hoary bats (Lasiurus cinereus) are highly migratory and one of the most frequently killed species at wind turbines. We analyzed a long-term data set to investigate how weather and moonlight influenced the occurrence of hoary bats at an island stopover point along their migration route. We then related our results to the problem of bat fatalities at wind turbines. We found that relatively low wind speeds, low moon illumination, and relatively high degrees of cloud cover were important predictors of bat arrivals and departures, and that low barometric pressure was an additional variable that helped predict arrivals. Slight differences in the conditions under which bats arrived and departed from the island suggest that hoary bats may be more likely to arrive on the island with passing storm fronts in autumn. These results also indicate that fatalities of hoary bats at wind turbines may be predictable events, that the species may be drawn to prominent landmarks that they see during migration, and that they regularly migrate over the ocean. Additional observations from this and other studies suggest that the problem of bat fatalities at wind turbines may be associated with flocking and autumn mating behaviors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.biocon.2007.05.019","issn":"00063207","usgsCitation":"Cryan, P., and Brown, A., 2007, Migration of bats past a remote island offers clues toward the problem of bat fatalities at wind turbines: Biological Conservation, v. 139, no. 1-2, p. 1-11, https://doi.org/10.1016/j.biocon.2007.05.019.","startPage":"1","endPage":"11","numberOfPages":"11","costCenters":[],"links":[{"id":212991,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.biocon.2007.05.019"},{"id":240567,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"139","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5703e4b0c8380cd6d9bd","contributors":{"authors":[{"text":"Cryan, P.M.","contributorId":82635,"corporation":false,"usgs":true,"family":"Cryan","given":"P.M.","affiliations":[],"preferred":false,"id":425660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, A.C.","contributorId":30276,"corporation":false,"usgs":true,"family":"Brown","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":425659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031185,"text":"70031185 - 2007 - Comparison of earthquake source spectra and attenuation in eastern North America and southeastern Australia","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031185","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of earthquake source spectra and attenuation in eastern North America and southeastern Australia","docAbstract":"The paucity of ground-motion data in stable continental regions (SCRs) remains a key limitation when developing relations that seek to predict effects of strong ground shaking from large damaging earthquakes. It is desirable to combine data from more than one SCR to increase database size, but this raises questions as to whether the source and attenuation properties of the SCRs are equivalent. We compare recently compiled spectral-amplitude databases from small to moderate events (moment magnitudes, 2.0 ??? M ??? 5.0) in both southeastern Australia and eastern North America (ENA). Both are SCRs but are widely separated, spatially and in tectonic history. We statistically compare ground motions by plotting mean and standard deviations of spectral amplitudes for data grouped in magnitude and distance bins. These comparisons show that the source and attenuation properties of the two regions are very similar, in particular, at shorter hypocentral distances R (i.e., R < 70 km). At larger distances, regional attenuation differences are observed that may be attributed to differences in crustal structure. We conclude that it is valid to combine the Australian and ENA ground-motion datasets in the development of ground-motion prediction equations, with some limitations in frequency and distance ranges. These ground-motion relations may serve as generic functions for SCRs around the world.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120060206","issn":"00371106","usgsCitation":"Allen, T., and Atkinson, G.M., 2007, Comparison of earthquake source spectra and attenuation in eastern North America and southeastern Australia: Bulletin of the Seismological Society of America, v. 97, no. 4, p. 1350-1354, https://doi.org/10.1785/0120060206.","startPage":"1350","endPage":"1354","numberOfPages":"5","costCenters":[],"links":[{"id":211546,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060206"},{"id":238848,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f85de4b0c8380cd4d05d","contributors":{"authors":[{"text":"Allen, T.I.","contributorId":6659,"corporation":false,"usgs":true,"family":"Allen","given":"T.I.","email":"","affiliations":[],"preferred":false,"id":430413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Atkinson, G. M.","contributorId":69283,"corporation":false,"usgs":true,"family":"Atkinson","given":"G.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":430414,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030093,"text":"70030093 - 2007 - Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars","interactions":[],"lastModifiedDate":"2018-11-27T11:45:22","indexId":"70030093","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":"Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars","docAbstract":"<p>During its exploration of the Columbia Hills, the Mars Exploration Rover \"Spirit\" encountered several similar samples that are distinctly different from Martian meteorites and known Gusev crater soils, rocks, and sediments. Occurring in a variety of contexts and locations, these \"Independence class\" samples are rough-textured, iron-poor (equivalent FeO ??? 4 wt%), have high Al/Si ratios, and often contain unexpectedly high concentrations of one or more minor or trace elements (including Cr, Ni, Cu, Sr, and Y). Apart from accessory minerals, the major component common to these samples has a compositional profile of major and minor elements which is similar to the smectite montmorillonite, implicating this mineral, or its compositional equivalent. Infrared thermal emission spectra do not indicate the presence of crystalline smectite. One of these samples was found spatially associated with a ferric sulfate-enriched soil horizon, possibly indicating a genetic relationship between these disparate types of materials. Compared to the nearby Wishstone and Watchtower class rocks, major aqueous alteration involving mineral dissolution and mobilization with consequent depletions of certain elements is implied for this setting and may be undetectable by remote sensing from orbit because of the small scale of the occurrences and obscuration by mantling with soil and dust.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2006JE002756","issn":"01480227","usgsCitation":"Clark, B.C., Arvidson, R., Gellert, R., Morris, R., Ming, D.W., Richter, L., Ruff, S.W., Michalski, J., Farrand, W.H., Yen, A.S., Herkenhoff, K.E., Li, R., Squyres, S.W., Schroder, C., Klingelhofer, G., and Bell, J., 2007, Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars: Journal of Geophysical Research E: Planets, v. 112, no. E6, 19 p., https://doi.org/10.1029/2006JE002756.","productDescription":"19 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":476969,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006je002756","text":"Publisher Index Page"},{"id":240661,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Columbia Hills; Mars","volume":"112","issue":"E6","noUsgsAuthors":false,"publicationDate":"2007-04-26","publicationStatus":"PW","scienceBaseUri":"505a0d4be4b0c8380cd52f20","contributors":{"authors":[{"text":"Clark, B. C. III","contributorId":19372,"corporation":false,"usgs":true,"family":"Clark","given":"B.","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425674,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arvidson, R. E.","contributorId":46666,"corporation":false,"usgs":true,"family":"Arvidson","given":"R. E.","affiliations":[],"preferred":false,"id":425679,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gellert, Ralf","contributorId":35049,"corporation":false,"usgs":false,"family":"Gellert","given":"Ralf","email":"","affiliations":[{"id":12660,"text":"University of Guelph","active":true,"usgs":false}],"preferred":false,"id":425676,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Morris, R.V.","contributorId":6978,"corporation":false,"usgs":true,"family":"Morris","given":"R.V.","affiliations":[],"preferred":false,"id":425673,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ming, D. W.","contributorId":96811,"corporation":false,"usgs":true,"family":"Ming","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":425686,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Richter, L.","contributorId":100162,"corporation":false,"usgs":true,"family":"Richter","given":"L.","email":"","affiliations":[],"preferred":false,"id":425688,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ruff, S. W.","contributorId":63136,"corporation":false,"usgs":false,"family":"Ruff","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":425682,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Michalski, J.R.","contributorId":46202,"corporation":false,"usgs":true,"family":"Michalski","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":425678,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Farrand, W. H.","contributorId":64372,"corporation":false,"usgs":true,"family":"Farrand","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425683,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Yen, A. S.","contributorId":35860,"corporation":false,"usgs":true,"family":"Yen","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":425677,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Herkenhoff, Kenneth E. 0000-0002-3153-6663 kherkenhoff@usgs.gov","orcid":"https://orcid.org/0000-0002-3153-6663","contributorId":2275,"corporation":false,"usgs":true,"family":"Herkenhoff","given":"Kenneth","email":"kherkenhoff@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":425681,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Li, R.","contributorId":68441,"corporation":false,"usgs":true,"family":"Li","given":"R.","affiliations":[],"preferred":false,"id":425685,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Squyres, S. W.","contributorId":31836,"corporation":false,"usgs":true,"family":"Squyres","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":425675,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Schroder, C.","contributorId":67201,"corporation":false,"usgs":true,"family":"Schroder","given":"C.","affiliations":[],"preferred":false,"id":425684,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Klingelhofer, G.","contributorId":57195,"corporation":false,"usgs":true,"family":"Klingelhofer","given":"G.","email":"","affiliations":[],"preferred":false,"id":425680,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":425687,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}}
,{"id":70030106,"text":"70030106 - 2007 - A simple model for the spatially-variable coastal response to hurricanes","interactions":[],"lastModifiedDate":"2014-10-07T09:55:19","indexId":"70030106","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"A simple model for the spatially-variable coastal response to hurricanes","docAbstract":"<p>The vulnerability of a beach to extreme coastal change during a hurricane can be estimated by comparing the relative elevations of storm-induced water levels to those of the dune or berm. A simple model that defines the coastal response based on these elevations was used to hindcast the potential impact regime along a 50-km stretch of the North Carolina coast to the landfalls of Hurricane Bonnie on August 27, 1998, and Hurricane Floyd on September 16, 1999. Maximum total water levels at the shoreline were calculated as the sum of modeled storm surge, astronomical tide, and wave runup, estimated from offshore wave conditions and the local beach slope using an empirical parameterization. Storm surge and wave runup each accounted for ∼ 48% of the signal (the remaining 4% is attributed to astronomical tides), indicating that wave-driven process are a significant contributor to hurricane-induced water levels. Expected water levels and lidar-derived measures of pre-storm dune and berm elevation were used to predict the spatially-varying storm-impact regime: swash, collision, or overwash. Predictions were compared to the observed response quantified using a lidar topography survey collected following hurricane landfall. The storm-averaged mean accuracy of the model in predicting the observed impact regime was 55.4%, a significant improvement over the 33.3% accuracy associated with random chance. Model sensitivity varied between regimes and was highest within the overwash regime where the accuracies were 84.2% and 89.7% for Hurricanes Bonnie and Floyd, respectively.</p>\n<br>\n<p>The model not only allows for prediction of the general coastal response to storms, but also provides a framework for examining the longshore-variable magnitudes of observed coastal change. For Hurricane Bonnie, shoreline and beach volume changes within locations that experienced overwash or dune erosion were two times greater than locations where wave runup was confined to the foreshore (swash regime). During Hurricane Floyd, this pattern became more pronounced as magnitudes of change were four times greater within the overwash regime than in the swash regime. Comparisons of pre-storm topography to a calm weather survey collected one year after Hurricane Floyd's landfall show long-term beach volume loss at overwash locations. Here, the volume of sand eroded from the beach was balanced by the volume of overwash deposits, indicating that the majority of the sand removed from the beach was transported landward across the island rather than being transported offshore. In overwash locations, sand was removed from the nearshore system and unavailable for later beach recovery, resulting in a more permanent response than observed within the other regimes. These results support the predictive capabilities of the storm scaling model and illustrate that the impact regimes provide a framework for explaining the longshore-variable coastal response to hurricanes.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.margeo.2006.11.004","issn":"00253227","usgsCitation":"Stockdon, H., Sallenger, A.H., Holman, R., and Howd, P., 2007, A simple model for the spatially-variable coastal response to hurricanes: Marine Geology, v. 238, no. 14, p. 1-20, https://doi.org/10.1016/j.margeo.2006.11.004.","productDescription":"20 p.","startPage":"1","endPage":"20","numberOfPages":"20","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":212792,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.margeo.2006.11.004"},{"id":240332,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"238","issue":"14","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e590e4b0c8380cd46e21","contributors":{"authors":[{"text":"Stockdon, H.F. 0000-0003-0791-4676","orcid":"https://orcid.org/0000-0003-0791-4676","contributorId":55992,"corporation":false,"usgs":true,"family":"Stockdon","given":"H.F.","affiliations":[],"preferred":false,"id":425732,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sallenger, A. H. Jr.","contributorId":8818,"corporation":false,"usgs":true,"family":"Sallenger","given":"A.","suffix":"Jr.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425731,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holman, R.A.","contributorId":73751,"corporation":false,"usgs":true,"family":"Holman","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":425733,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Howd, P.A.","contributorId":103793,"corporation":false,"usgs":true,"family":"Howd","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":425734,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031116,"text":"70031116 - 2007 - A comparison of protocols and observer precision for measuring physical stream attributes","interactions":[],"lastModifiedDate":"2015-12-15T13:13:08","indexId":"70031116","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of protocols and observer precision for measuring physical stream attributes","docAbstract":"<p>Stream monitoring programs commonly measure physical attributes to assess the effect of land management on stream habitat. Variability associated with the measurement of these attributes has been linked to a number of factors, but few studies have evaluated variability due to differences in protocols. We compared six protocols, five used by the U.S. Department of Agriculture Forest Service and one by the U.S. Environmental Protection Agency, on six streams in Oregon and Idaho to determine whether differences in protocol affect values for 10 physical stream attributes. Results from Oregon and Idaho were combined for groups participating in both states, with significant differences in attribute means for 9 out of the 10 stream attributes. Significant differences occurred in 5 of 10 in Idaho, and 10 of 10 in Oregon. Coefficients of variation, signal-to-noise ratio, and root mean square error were used to evaluate measurement precision. There were differences among protocols for all attributes when states were analyzed separately and as a combined dataset. Measurement differences were influenced by choice of instruments, measurement method, measurement location, attribute definitions, and training approach. Comparison of data gathered by observers using different protocols will be difficult unless a core set of protocols for commonly measured stream attributes can be standardized among monitoring programs.</p>","largerWorkType":{"id":2,"text":"Article"},"language":"English","publisher":"American Water Resources Association","doi":"10.1111/j.1752-1688.2007.00074.x","issn":"1093474X","usgsCitation":"Whitacre, H., Roper, B., and Kershner, J.L., 2007, A comparison of protocols and observer precision for measuring physical stream attributes: Journal of the American Water Resources Association, v. 43, no. 4, p. 923-937, https://doi.org/10.1111/j.1752-1688.2007.00074.x.","productDescription":"15 p.","startPage":"923","endPage":"937","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":238978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211650,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2007.00074.x"}],"country":"United States","state":"Idaho, Oregon","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -115.927734375,\n              48.951366470947725\n            ],\n            [\n              -117.09228515624999,\n              49.05227025601607\n            ],\n            [\n              -116.96044921875,\n              46.22545288226939\n            ],\n            [\n              -120.60791015625,\n              46.08847179577592\n            ],\n            [\n              -123.85986328124999,\n              46.13417004624326\n            ],\n            [\n              -124.29931640625,\n              44.4808302785626\n            ],\n            [\n              -124.43115234375,\n              41.96765920367816\n            ],\n            [\n              -118.36669921875,\n              42.06560675405716\n            ],\n            [\n              -111.005859375,\n              42.06560675405716\n            ],\n            [\n              -111.15966796875,\n              44.809121700077355\n            ],\n            [\n              -115.02685546875,\n              46.99524110694596\n            ],\n            [\n              -115.99365234375,\n              47.79839667295524\n            ],\n            [\n              -115.99365234375,\n              49.009050809382046\n            ],\n            [\n              -115.927734375,\n              48.951366470947725\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"43","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-06-28","publicationStatus":"PW","scienceBaseUri":"5059e370e4b0c8380cd4600a","contributors":{"authors":[{"text":"Whitacre, H.W.","contributorId":94094,"corporation":false,"usgs":true,"family":"Whitacre","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":430098,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roper, B.B.","contributorId":65280,"corporation":false,"usgs":true,"family":"Roper","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":430097,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kershner, J. L.","contributorId":100322,"corporation":false,"usgs":true,"family":"Kershner","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":430099,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030121,"text":"70030121 - 2007 - Dust deposition on the Mars Exploration Rover Panoramic Camera (Pancam) calibration targets","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70030121","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":"Dust deposition on the Mars Exploration Rover Panoramic Camera (Pancam) calibration targets","docAbstract":"The Panoramic Camera (Pancam) on the Mars Exploration Rover mission has acquired in excess of 20,000 images of the Pancam calibration targets on the rovers. Analysis of this data set allows estimates of the rate of deposition and removal of aeolian dust on both rovers. During the first 150-170 sols there was gradual dust accumulation on the rovers but no evidence for dust removal. After that time there is ample evidence for both dust removal and dust deposition on both rover decks. We analyze data from early in both rover missions using a diffusive reflectance mixing model. Assuming a dust settling rate proportional to the atmospheric optical depth, we derive spectra of optically thick layers of airfall dust that are consistent with spectra from dusty regions on the Martian surface. Airfall dust reflectance at the Opportunity site appears greater than at the Spirit site, consistent with other observations. We estimate the optical depth of dust deposited on the Spirit calibration target by sol 150 to be 0.44 ?? 0.13. For Opportunity the value was 0.39 ?? 0.12. Assuming 80% pore space, we estimate that the dust layer grew at a rate of one grain diameter per ???100 sols on the Spirit calibration target. On Opportunity the rate was one grain diameter per ???125 sols. These numbers are consistent with dust deposition rates observed by Mars Pathfinder taking into account the lower atmospheric dust optical depth during the Mars Pathfinder mission. 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":"10.1029/2006JE002807","issn":"01480227","usgsCitation":"Kinch, K., Sohl-Dickstein, J., Bell, J., Johnson, J.R., Goetz, W., and Landis, G.A., 2007, Dust deposition on the Mars Exploration Rover Panoramic Camera (Pancam) calibration targets: Journal of Geophysical Research E: Planets, v. 112, no. 6, https://doi.org/10.1029/2006JE002807.","costCenters":[],"links":[{"id":487770,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://resolver.sub.uni-goettingen.de/purl?gro-2/129781","text":"External Repository"},{"id":240599,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213019,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JE002807"}],"volume":"112","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-04-26","publicationStatus":"PW","scienceBaseUri":"505a041ce4b0c8380cd507bb","contributors":{"authors":[{"text":"Kinch, K.M.","contributorId":9041,"corporation":false,"usgs":true,"family":"Kinch","given":"K.M.","affiliations":[],"preferred":false,"id":425801,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sohl-Dickstein, J.","contributorId":8295,"corporation":false,"usgs":true,"family":"Sohl-Dickstein","given":"J.","affiliations":[],"preferred":false,"id":425800,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":425804,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, J. R.","contributorId":69278,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":425802,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goetz, W.","contributorId":104258,"corporation":false,"usgs":true,"family":"Goetz","given":"W.","affiliations":[],"preferred":false,"id":425805,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Landis, G. A.","contributorId":76536,"corporation":false,"usgs":true,"family":"Landis","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425803,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031068,"text":"70031068 - 2007 - Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water","interactions":[],"lastModifiedDate":"2018-10-17T08:26:57","indexId":"70031068","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1396,"text":"Diseases of Aquatic Organisms","active":true,"publicationSubtype":{"id":10}},"title":"Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water","docAbstract":"<p>The fungal pathogen Batrachochytrium dendrobatidis (Bd) causes chytridiomycosis, a disease implicated in amphibian declines on 5 continents. Polymerase chain reaction (PCR) primer sets exist with which amphibians can be tested for this disease, and advances in sampling techniques allow non-invasive testing of animals. We developed filtering and PCR based quantitative methods by modifying existing PCR assays to detect Bd DNA in water and sediments, without the need for testing amphibians; we tested the methods at 4 field sites. The SYBR based assay using Boyle primers (SYBR/Boyle assay) and the Taqman based assay using Wood primers performed similarly with samples generated in the laboratory (Bd spiked filters), but the SYBR/Boyle assay detected Bd DNA in more field samples. We detected Bd DNA in water from 3 of 4 sites tested, including one pond historically negative for chytridiomycosis. Zoospore equivalents in sampled water ranged from 19 to 454 l-1 (nominal detection limit is 10 DNA copies, or about 0.06 zoospore). We did not detect DNA of Bd from sediments collected at any sites. Our filtering and amplification methods provide a new tool to investigate critical aspects of Bd in the environment.</p>","language":"English","publisher":"Inter-Research","doi":"10.3354/dao01831","issn":"01775103","usgsCitation":"Kirshtein, J.D., Anderson, C., Wood, J., Longcore, J.E., and Voytek, M.A., 2007, Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water: Diseases of Aquatic Organisms, v. 77, no. 1, p. 11-15, https://doi.org/10.3354/dao01831.","productDescription":"5 p.","startPage":"11","endPage":"15","numberOfPages":"5","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":487663,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/dao01831","text":"Publisher Index Page"},{"id":238780,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211484,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/dao01831"}],"volume":"77","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a91f9e4b0c8380cd8059d","contributors":{"authors":[{"text":"Kirshtein, Julie D.","contributorId":26033,"corporation":false,"usgs":true,"family":"Kirshtein","given":"Julie","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":429899,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, Chauncey W. 0000-0002-1016-3781 chauncey@usgs.gov","orcid":"https://orcid.org/0000-0002-1016-3781","contributorId":1151,"corporation":false,"usgs":true,"family":"Anderson","given":"Chauncey W.","email":"chauncey@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":false,"id":429898,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wood, J.S.","contributorId":43974,"corporation":false,"usgs":true,"family":"Wood","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":429900,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Longcore, Joyce E.","contributorId":67464,"corporation":false,"usgs":true,"family":"Longcore","given":"Joyce","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":429902,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Voytek, Mary A.","contributorId":91943,"corporation":false,"usgs":true,"family":"Voytek","given":"Mary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":429901,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031038,"text":"70031038 - 2007 - Integrating laboratory creep compaction data with numerical fault models: A Bayesian framework","interactions":[],"lastModifiedDate":"2023-07-27T12:24:12.666509","indexId":"70031038","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Integrating laboratory creep compaction data with numerical fault models: A Bayesian framework","docAbstract":"<div class=\"\"><div class=\"article-section__content en main\"><p><span class=\"paraNumber\">[1]<span>&nbsp;</span></span>We developed a robust Bayesian inversion scheme to plan and analyze laboratory creep compaction experiments. We chose a simple creep law that features the main parameters of interest when trying to identify rate-controlling mechanisms from experimental data. By integrating the chosen creep law or an approximation thereof, one can use all the data, either simultaneously or in overlapping subsets, thus making more complete use of the experiment data and propagating statistical variations in the data through to the final rate constants. Despite the nonlinearity of the problem, with this technique one can retrieve accurate estimates of both the stress exponent and the activation energy, even when the porosity time series data are noisy. Whereas adding observation points and/or experiments reduces the uncertainty on all parameters, enlarging the range of temperature or effective stress significantly reduces the covariance between stress exponent and activation energy. We apply this methodology to hydrothermal creep compaction data on quartz to obtain a quantitative, semiempirical law for fault zone compaction in the interseismic period. Incorporating this law into a simple direct rupture model, we find marginal distributions of the time to failure that are robust with respect to errors in the initial fault zone porosity.</p></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006JB004792","issn":"01480227","usgsCitation":"Fitzenz, D., Jalobeanu, A., and Hickman, S., 2007, Integrating laboratory creep compaction data with numerical fault models: A Bayesian framework: Journal of Geophysical Research B: Solid Earth, v. 112, no. 8, 18 p., https://doi.org/10.1029/2006JB004792.","productDescription":"18 p.","costCenters":[],"links":[{"id":477346,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jb004792","text":"Publisher Index Page"},{"id":238776,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-08-14","publicationStatus":"PW","scienceBaseUri":"505a3c7be4b0c8380cd62d89","contributors":{"authors":[{"text":"Fitzenz, D.D.","contributorId":61218,"corporation":false,"usgs":true,"family":"Fitzenz","given":"D.D.","email":"","affiliations":[],"preferred":false,"id":429720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jalobeanu, A.","contributorId":31197,"corporation":false,"usgs":true,"family":"Jalobeanu","given":"A.","affiliations":[],"preferred":false,"id":429719,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hickman, S.H. 0000-0003-2075-9615","orcid":"https://orcid.org/0000-0003-2075-9615","contributorId":16027,"corporation":false,"usgs":true,"family":"Hickman","given":"S.H.","affiliations":[],"preferred":false,"id":429718,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031020,"text":"70031020 - 2007 - Robust 24 ± 6 ka <sup>40</sup>Ar/<sup>39</sup>Ar age of a low-potassium tholeiitic basalt in the Lassen region of NE California","interactions":[],"lastModifiedDate":"2019-03-25T11:16:57","indexId":"70031020","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Robust 24 ± 6 ka <sup>40</sup>Ar/<sup>39</sup>Ar age of a low-potassium tholeiitic basalt in the Lassen region of NE California","docAbstract":"<p><sup>40</sup><span>Ar/</span><sup>39</sup><span>Ar ages on the Hat Creek Basalt (HCB) and stratigraphically related lava flows show that latest Pleistocene tholeiitic basalt with very low K</span><sub>2</sub><span>O can be dated reliably. The HCB underlies &sim;&nbsp;15&nbsp;ka glacial gravel and overlies four andesite and basaltic andesite lava flows that yield&nbsp;</span><sup>40</sup><span>Ar/</span><sup>39</sup><span>Ar ages of 38&nbsp;&plusmn;&nbsp;7&nbsp;ka (Cinder Butte; 1.65% K</span><sub>2</sub><span>O), 46&nbsp;&plusmn;&nbsp;7&nbsp;ka (Sugarloaf Peak; 1.85% K</span><sub>2</sub><span>O), 67&nbsp;&plusmn;&nbsp;4&nbsp;ka (Little Potato Butte; 1.42% K</span><sub>2</sub><span>O) and 77&nbsp;&plusmn;&nbsp;11&nbsp;ka (Potato Butte; 1.62% K</span><sub>2</sub><span>O). Given these firm age brackets, we then dated the HCB directly. One sample (0.19% K</span><sub>2</sub><span>O) clearly failed the criteria for plateau-age interpretation, but the inverse isochron age of 26&nbsp;&plusmn;&nbsp;6&nbsp;ka is seductively appealing. A second sample (0.17% K</span><sub>2</sub><span>O) yielded concordant plateau, integrated (total fusion), and inverse isochron ages of 26&nbsp;&plusmn;&nbsp;18, 30&nbsp;&plusmn;&nbsp;20 and 24&nbsp;&plusmn;&nbsp;6&nbsp;ka, all within the time bracket determined by stratigraphic relations; the inverse isochron age of 24&nbsp;&plusmn;&nbsp;6&nbsp;ka is preferred. As with all isotopically determined ages, confidence in the results is significantly enhanced when additional constraints imposed by other isotopic ages within a stratigraphic context are taken into account.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.yqres.2007.02.004","issn":"00335894","usgsCitation":"Turrin, B., Muffler, L.P., Clynne, M.A., and Champion, D.E., 2007, Robust 24 ± 6 ka <sup>40</sup>Ar/<sup>39</sup>Ar age of a low-potassium tholeiitic basalt in the Lassen region of NE California: Quaternary Research, v. 68, no. 1, p. 96-110, https://doi.org/10.1016/j.yqres.2007.02.004.","productDescription":"15 p.","startPage":"96","endPage":"110","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":239006,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Hat Creek Basalt","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.4373779296875,\n              39.76210275375137\n            ],\n            [\n              -121.4373779296875,\n              41.20758898181025\n            ],\n            [\n              -120.00915527343749,\n              41.20758898181025\n            ],\n            [\n              -120.00915527343749,\n              39.76210275375137\n            ],\n            [\n              -121.4373779296875,\n              39.76210275375137\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"68","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505aaddce4b0c8380cd86fad","contributors":{"authors":[{"text":"Turrin, Brent D.","contributorId":89867,"corporation":false,"usgs":true,"family":"Turrin","given":"Brent D.","affiliations":[],"preferred":false,"id":429663,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Muffler, L.J. Patrick 0000-0001-6638-7218 pmuffler@usgs.gov","orcid":"https://orcid.org/0000-0001-6638-7218","contributorId":3322,"corporation":false,"usgs":true,"family":"Muffler","given":"L.J.","email":"pmuffler@usgs.gov","middleInitial":"Patrick","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":429664,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clynne, Michael A. 0000-0002-4220-2968 mclynne@usgs.gov","orcid":"https://orcid.org/0000-0002-4220-2968","contributorId":2032,"corporation":false,"usgs":true,"family":"Clynne","given":"Michael","email":"mclynne@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":429666,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Champion, Duane E. 0000-0001-7854-9034 dchamp@usgs.gov","orcid":"https://orcid.org/0000-0001-7854-9034","contributorId":2912,"corporation":false,"usgs":true,"family":"Champion","given":"Duane","email":"dchamp@usgs.gov","middleInitial":"E.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":429665,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030983,"text":"70030983 - 2007 - Application of a source apportionment model in consideration of volatile organic compounds in an urban stream","interactions":[],"lastModifiedDate":"2012-03-12T17:21:04","indexId":"70030983","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":"Application of a source apportionment model in consideration of volatile organic compounds in an urban stream","docAbstract":"Position-dependent concentrations of trichloroethylene and methyl-tert-butyl ether are considered for a 2.81-km section of the Aberjona River in Massachusetts, USA. This river flows through Woburn and Winchester (Massachusetts, USA), an area that is highly urbanized, has a long history of industrial activities dating to the early 1800s, and has gained national attention because of contamination from chlorinated solvent compounds in Woburn wells G and H. The river study section is in Winchester and begins approximately five stream kilometers downstream from the Woburn wells superfund site. Approximately 300 toxic release sites are documented in the watershed upstream from the terminus of the study section. The inflow to the river study section is considered one source of contamination. Other sources are the atmosphere, a tributary flow, and groundwater flows entering the river; the latter are categorized according to stream zone (1, 2, 3, etc.). Loss processes considered include outflows to groundwater and water-to-atmosphere transfer of volatile compounds. For both trichloroethylene and methyl-rerf-butyl ether, degradation is neglected over the timescale of interest. Source apportionment fractions with assigned values ??inflow, ??1, ??2, ??3, etc. are tracked by a source apportionment model. The strengths of the groundwater and tributary sources serve as fitting parameters when minimizing a reduced least squares statistic between water concentrations measured during a synoptic study in July 2001 versus predictions from the model. The model fits provide strong evidence of substantial unknown groundwater sources of trichloroethylene and methyl-tert-butyl ether amounting to tens of grams per day of trichloroethylene and methyl-tert-butyl ether in the river along the study section. Modeling in a source apportionment manner can be useful to water quality managers allocating limited resources for remediation and source control. ?? 2007 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/06-557R.1","issn":"07307268","usgsCitation":"Asher, W., Luo, W., Campo, K., Bender, D., Robinson, K.W., Zogorski, J., and Pankow, J.F., 2007, Application of a source apportionment model in consideration of volatile organic compounds in an urban stream: Environmental Toxicology and Chemistry, v. 26, no. 8, p. 1606-1613, https://doi.org/10.1897/06-557R.1.","startPage":"1606","endPage":"1613","numberOfPages":"8","costCenters":[],"links":[{"id":211641,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-557R.1"},{"id":238968,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-08-01","publicationStatus":"PW","scienceBaseUri":"5059ec93e4b0c8380cd4935d","contributors":{"authors":[{"text":"Asher, W.E.","contributorId":99339,"corporation":false,"usgs":true,"family":"Asher","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":429498,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luo, W.","contributorId":71331,"corporation":false,"usgs":true,"family":"Luo","given":"W.","email":"","affiliations":[],"preferred":false,"id":429497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Campo, K.W.","contributorId":102270,"corporation":false,"usgs":true,"family":"Campo","given":"K.W.","email":"","affiliations":[],"preferred":false,"id":429499,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bender, D.A.","contributorId":49537,"corporation":false,"usgs":true,"family":"Bender","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":429496,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Robinson, K. W.","contributorId":27488,"corporation":false,"usgs":true,"family":"Robinson","given":"K.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":429495,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zogorski, J.S.","contributorId":108201,"corporation":false,"usgs":true,"family":"Zogorski","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":429500,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pankow, J. F.","contributorId":20917,"corporation":false,"usgs":true,"family":"Pankow","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":429494,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70030122,"text":"70030122 - 2007 - Quasi-horizontal circulation cells in 3D seawater intrusion","interactions":[],"lastModifiedDate":"2018-10-16T10:29:57","indexId":"70030122","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Quasi-horizontal circulation cells in 3D seawater intrusion","docAbstract":"<p>The seawater intrusion process is characterized by the difference in freshwater and seawater density that causes freshwater to float on seawater. Many confined aquifers have a large horizontal extension with respect to thickness. In these cases, while buoyancy acts in the vertical direction, flow is confined between the upper and bottom boundaries and the effect of gravity is controlled by variations of aquifer elevation. Therefore, the effective gravity is controlled by the slope and the shape of the aquifer boundaries. Variability in the topography of the aquifer boundaries is one case where 3D analysis is necessary. In this work, density-dependent flow processes caused by 3D aquifer geometry are studied numerically and specifically, considering a lateral slope of the aquifer boundaries. Sub-horizontal circulation cells are formed in the saltwater entering the aquifer. The penetration of the saltwater can be quantified by a dimensionless buoyancy number that measures the lateral slope of the aquifer relative to freshwater flux. The penetration of the seawater intrusion wedge is controlled more by this slope than by the aquifer thickness and dispersivity. Thus, the slope must be taken into account in order to accurately evaluate seawater intrusion.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2007.02.017","issn":"00221694","usgsCitation":"Abarca, E., Carrera, J., Sanchez-Vila, X., and Voss, C.I., 2007, Quasi-horizontal circulation cells in 3D seawater intrusion: Journal of Hydrology, v. 339, no. 3-4, p. 118-129, https://doi.org/10.1016/j.jhydrol.2007.02.017.","productDescription":"12 p.","startPage":"118","endPage":"129","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":477026,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.scipedia.com/public/Abarca_et_al_2007b","text":"External Repository"},{"id":213020,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2007.02.017"},{"id":240600,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"339","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9279e4b0c8380cd80894","contributors":{"authors":[{"text":"Abarca, E.","contributorId":28077,"corporation":false,"usgs":true,"family":"Abarca","given":"E.","affiliations":[],"preferred":false,"id":425806,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carrera, J.","contributorId":68536,"corporation":false,"usgs":true,"family":"Carrera","given":"J.","email":"","affiliations":[],"preferred":false,"id":425807,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sanchez-Vila, X.","contributorId":106716,"corporation":false,"usgs":true,"family":"Sanchez-Vila","given":"X.","email":"","affiliations":[],"preferred":false,"id":425809,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425808,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030922,"text":"70030922 - 2007 - Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70030922","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials","docAbstract":"Unconformable surfaces separating Precambrian crystalline basement and overlying Proterozoic to Cambrian sedimentary rocks provide an exceptional opportunity to examine the role of primitive soil ecosystems in weathering and resultant formation of saprolite (weathered rock retaining rock structure) and regolith (weathered rock without rock structure), but many appear to have been affected by burial diagenesis and hydrothermal fluid flow, leading some researchers to discount their suitability for such studies. We examine one modern weathering profile (Cecil series), four Cambrian paleoweathering profiles from the North American craton (Squaw Creek, Franklin Mountains, Core SQ-8, and Core 4), one Neoproterozoic profile (Sheigra), and one late Paleoproterozoic profile (Baraboo), to test the hypothesis that these paleoweathering profiles do provide evidence of primitive terrestrial weathering despite their diagenetic and hydrothermal overprinting, especially additions of potassium. We employ an integrated approach using (1) detailed thin-section investigations to identify characteristic pedogenic features associated with saprolitization and formation of well-drained regoliths, (2) electron microprobe analysis to identify specific weathered and new mineral phases, and (3) geochemical mass balance techniques to characterize volume changes during weathering and elemental gains and losses of major and minor elements relative to the inferred parent materials. There is strong pedogenic evidence of paleoweathering, such as clay illuviation, sepic-plasmic fabrics, redoximorphic features, and dissolution and alteration of feldspars and mafic minerals to kaolinite, gibbsite, and Fe oxides, as well as geochemical evidence, such as whole-rock losses of Na, Ca, Mg, Si, Sr, Fe, and Mn greater than in modern profiles. Evidence of diagenesis includes net additions of K, Ba, and Rb determined through geochemical mass balance, K-feldspar overgrowths in overlying sandstone sections, and K-feldspars with reaction rims in weathered basement. The sub-Cambrian paleoweathering profiles formed on granite are remarkably similar to modern weathering profiles formed on granite, in spite of overprinting by potassium diagenesis. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/518048","issn":"00221376","usgsCitation":"Driese, S., Medaris, L., Ren, M., Runkel, A.C., and Langford, R., 2007, Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials: Journal of Geology, v. 115, no. 4, p. 387-406, https://doi.org/10.1086/518048.","startPage":"387","endPage":"406","numberOfPages":"20","costCenters":[],"links":[{"id":211269,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/518048"},{"id":238532,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0105e4b0c8380cd4fa56","contributors":{"authors":[{"text":"Driese, S.G.","contributorId":53594,"corporation":false,"usgs":true,"family":"Driese","given":"S.G.","email":"","affiliations":[],"preferred":false,"id":429243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Medaris, L.G. Jr.","contributorId":12258,"corporation":false,"usgs":true,"family":"Medaris","given":"L.G.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":429242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ren, M.","contributorId":62823,"corporation":false,"usgs":true,"family":"Ren","given":"M.","email":"","affiliations":[],"preferred":false,"id":429244,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Runkel, Anthony C.","contributorId":63186,"corporation":false,"usgs":true,"family":"Runkel","given":"Anthony","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":429245,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Langford, R.P.","contributorId":70589,"corporation":false,"usgs":true,"family":"Langford","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":429246,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030899,"text":"70030899 - 2007 - Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030899","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2385,"text":"Journal of Medical Entomology","active":true,"publicationSubtype":{"id":10}},"title":"Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i","docAbstract":"Mosquito-borne avian diseases, principally avian malaria (Plasmodium relictum Grassi and Feletti) and avian pox (Avipoxvirus sp.) have been implicated as the key limiting factor associated with recent declines of endemic avifauna in the Hawaiian Island archipelago. We present data on the relative abundance, infection status, and spatial distribution of the primary mosquito vector Culex quinquefasciatus Say (Diptera: Culicidae) across a mixed, residential-agricultural community adjacent to Hawai'i Volcanoes National Park on Hawai'i Island. We modeled the effect of agriculture and forest fragmentation in determining relative abundance of adult Cx. quinquefasciatus in Volcano Village, and we implement our statistical model in a geographic information system to generate a probability of mosquito capture prediction surface for the study area. Our model was based on biweekly captures of adult mosquitoes from 20 locations within Volcano Village from October 2001 to April 2003. We used mixed effects logistic regression to model the probability of capturing a mosquito, and we developed a set of 17 competing models a priori to specifically evaluate the effect of agriculture and fragmentation (i.e., residential landscapes) at two spatial scales. In total, 2,126 mosquitoes were captured in CO 2-baited traps with an average probability of 0.27 (SE = 0.10) of capturing one or more mosquitoes per trap night. Twelve percent of mosquitoes captured were infected with P. relictum. Our data indicate that agricultural lands and forest fragmentation significantly increase the probability of mosquito capture. The prediction surface identified areas along the Hawai'i Volcanoes National Park boundary that may have high relative abundance of the vector. Our data document the potential of avian malaria transmission in residential-agricultural landscapes and support the need for vector management that extends beyond reserve boundaries and considers a reserve's spatial position in a highly heterogeneous landscape.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Medical Entomology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2","issn":"00222585","usgsCitation":"Reiter, M., and Lapointe, D., 2007, Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i: Journal of Medical Entomology, v. 44, no. 5, p. 861-868, https://doi.org/10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2.","startPage":"861","endPage":"868","numberOfPages":"8","costCenters":[],"links":[{"id":211416,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2"},{"id":238701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a440fe4b0c8380cd66809","contributors":{"authors":[{"text":"Reiter, M.E.","contributorId":80065,"corporation":false,"usgs":true,"family":"Reiter","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":429136,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lapointe, D.A.","contributorId":69691,"corporation":false,"usgs":true,"family":"Lapointe","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":429135,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030891,"text":"70030891 - 2007 - Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O","interactions":[],"lastModifiedDate":"2018-10-17T08:54:35","indexId":"70030891","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N<sub>2</sub>O","title":"Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O","docAbstract":"<p><span>Nitrite is an important intermediate species in the biogeochemical cycling of nitrogen, but its role in natural aquatic systems is poorly understood. Isotopic data can be used to study the sources and transformations of NO</span><sub>2</sub><sup>-</sup><span> in the environment, but methods for independent isotopic analyses of NO</span><sub>2</sub><sup>-</sup><span> in the presence of other N species are still new and evolving. This study demonstrates that isotopic analyses of N and O in NO</span><sub>2</sub><sup>-</sup><span> can be done by treating whole freshwater or saltwater samples with the denitrifying bacterium </span><i>Stenotrophomonas nitritireducens</i><span>, which selectively reduces NO</span><sub>2</sub><sup>-</sup><span> to N</span><sub>2</sub><span>O for isotope ratio mass spectrometry. When calibrated with solutions containing NO</span><sub>2</sub><sup>-</sup><span> with known isotopic compositions determined independently, reproducible δ</span><sup>15</sup><span>N and δ</span><sup>18</sup><span>O values were obtained at both natural-abundance levels (±0.2−0.5‰ for δ</span><sup>15</sup><span>N and ±0.4−1.0‰ for δ</span><sup>18</sup><span>O) and moderately enriched </span><sup>15</sup><span>N tracer levels (±20−50‰ for δ</span><sup>15</sup><span>N near 5000‰) for 5−20 nmol of NO</span><sub>2</sub><sup>-</sup><span> (1−20 μmol/L in 1−5 mL aliquots). This method is highly selective for NO</span><sub>2</sub><sup>-</sup><span>and was used for mixed samples containing both NO</span><sub>2</sub><sup>-</sup><span> and NO</span><sub>3</sub><sup>-</sup><span> with little or no measurable cross-contamination. In addition, mixed samples that were analyzed with </span><i>S. nitritireducens</i><span> were treated subsequently with </span><i>Pseudomonas aureofaciens</i><span> to reduce the NO</span><sub>3</sub><sup>-</sup><span> in the absence of NO</span><sub>2</sub><sup>-</sup><span>, providing isotopic analyses of NO</span><sub>2</sub><sup>-</sup><span> and NO</span><sub>3</sub><sup>-</sup><span> separately in the same aliquot. Sequential bacterial reduction methods like this one should be useful for a variety of isotopic studies aimed at understanding nitrogen cycling in aquatic environments. A test of these methods in an agricultural watershed in Indiana provides isotopic evidence for both nitrification and denitrification as sources of NO</span><sub>2</sub><sup>-</sup><span> in a small stream.</span></p>","language":"English","publisher":"ACS","doi":"10.1021/ac070176k","issn":"00032700","usgsCitation":"Bohlke, J.K., Smith, R.L., and Hannon, J.E., 2007, Isotopic analysis of N and O in nitrite and nitrate by sequential selective bacterial reduction to N2O: Analytical Chemistry, v. 79, no. 15, p. 5888-5895, https://doi.org/10.1021/ac070176k.","productDescription":"8 p.","startPage":"5888","endPage":"5895","numberOfPages":"8","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":238563,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211294,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac070176k"}],"country":"United States","state":"Indiana","volume":"79","issue":"15","noUsgsAuthors":false,"publicationDate":"2007-06-21","publicationStatus":"PW","scienceBaseUri":"505a3f93e4b0c8380cd64613","contributors":{"authors":[{"text":"Bohlke, John Karl 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":127841,"corporation":false,"usgs":true,"family":"Bohlke","given":"John","email":"jkbohlke@usgs.gov","middleInitial":"Karl","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":429110,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Richard L. 0000-0002-3829-0125 rlsmith@usgs.gov","orcid":"https://orcid.org/0000-0002-3829-0125","contributorId":1592,"corporation":false,"usgs":true,"family":"Smith","given":"Richard","email":"rlsmith@usgs.gov","middleInitial":"L.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":true,"id":429109,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hannon, Janet E. jehannon@usgs.gov","contributorId":3177,"corporation":false,"usgs":true,"family":"Hannon","given":"Janet","email":"jehannon@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":429108,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030123,"text":"70030123 - 2007 - Using drill cutting separates to estimate the strength of narrow shear zones at SAFOD","interactions":[],"lastModifiedDate":"2023-08-03T11:51:36.683083","indexId":"70030123","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":"Using drill cutting separates to estimate the strength of narrow shear zones at SAFOD","docAbstract":"<div class=\"\"><div class=\"article-section__content en main\"><p><span class=\"paraNumber\">[1]<span>&nbsp;</span></span>A technique is presented for estimating frictional strength of narrow shear zones based on hand selection of drillhole cuttings separates. Tests were conducted on cuttings from the SAFOD scientific drillhole near Parkfield, California. Since cuttings are mixed with adjacent material as they travel up the drillhole, these fault-derived separates give a better representation of the frictional properties of narrow features than measurements from the bulk material alone. Cuttings from two shear zones (one an active trace of the San Andreas fault) contain a significant weight percent of clay-rich grains that exhibit deformation-induced slickensides. In addition, cuttings from the active SAF trace contain around 1% serpentine. Coefficients of friction for clay-rich and serpentine grains were 0.3–0.5 and 0.4–0.45, respectively. These values are around 0.12 lower than the friction coefficient of the corresponding bulk cuttings, providing an improved estimate of the frictional strength of the San Andreas fault.</p></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2007GL029665","issn":"00948276","usgsCitation":"Morrow, C., Solum, J., Tembe, S., Lockner, D., and Wong, T., 2007, Using drill cutting separates to estimate the strength of narrow shear zones at SAFOD: Geophysical Research Letters, v. 34, no. 11, 4 p., https://doi.org/10.1029/2007GL029665.","productDescription":"4 p.","costCenters":[],"links":[{"id":477059,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl029665","text":"Publisher Index Page"},{"id":240601,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"11","noUsgsAuthors":false,"publicationDate":"2007-06-05","publicationStatus":"PW","scienceBaseUri":"505bc047e4b08c986b32a02b","contributors":{"authors":[{"text":"Morrow, C.","contributorId":49608,"corporation":false,"usgs":true,"family":"Morrow","given":"C.","email":"","affiliations":[],"preferred":false,"id":425811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Solum, J.","contributorId":16228,"corporation":false,"usgs":true,"family":"Solum","given":"J.","affiliations":[],"preferred":false,"id":425810,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tembe, S.","contributorId":88929,"corporation":false,"usgs":true,"family":"Tembe","given":"S.","email":"","affiliations":[],"preferred":false,"id":425813,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lockner, D.","contributorId":102190,"corporation":false,"usgs":true,"family":"Lockner","given":"D.","email":"","affiliations":[],"preferred":false,"id":425814,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wong, T.-F.","contributorId":64852,"corporation":false,"usgs":true,"family":"Wong","given":"T.-F.","email":"","affiliations":[],"preferred":false,"id":425812,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030800,"text":"70030800 - 2007 - Influence of fire on black-tailed prairie dog colony expansion in shortgrass steppe","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70030800","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3228,"text":"Rangeland Ecology and Management","onlineIssn":"1551-5028","printIssn":"1550-7424","active":true,"publicationSubtype":{"id":10}},"title":"Influence of fire on black-tailed prairie dog colony expansion in shortgrass steppe","docAbstract":"Factors influencing the distribution and abundance of black-tailed prairie dog (Cynomys ludovicianus) colonies are of interest to rangeland managers because of the significant influence prairie dogs can exert on both livestock and biodiversity. We examined the influence of 4 prescribed burns and one wildfire on the rate and direction of prairie dog colony expansion in shortgrass steppe of southeastern Colorado. Our study was conducted during 2 years with below-average precipitation, when prairie dog colonies were expanding throughout the study area. Under these dry conditions, the rate of black-tailed prairie dog colony expansion into burned grassland (X?? = 2.6 ha??100-m perimeter-1??y-1; range = 0.8-5.9 ha??100-m perimeter-1??y-1; N = 5 colonies) was marginally greater than the expansion rate into unburned grassland (X?? =1.3 ha??100-m perimeter-1??y-1; range = 0.2-4.9 ha??100-m perimeter-1??y-1; N = 23 colonies; P = 0.066). For 3 colonies that were burned on only a portion of their perimeter, we documented consistently high rates of expansion into the adjacent burned grassland (38%-42% of available burned habitat colonized) but variable expansion rates into the adjacent unburned grassland (2%-39% of available unburned habitat colonized). While our results provide evidence that burning can increase colony expansion rate even under conditions of low vegetative structure, this effect was minor at the scale of the overall colony complex because some unburned colonies were also able to expand at high rates. This result highlights the need to evaluate effects of fire on colony expansion during above-average rainfall years, when expansion into unburned grassland may be considerably lower.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Rangeland Ecology and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2111/1551-5028(2007)60[538:IOFOBP]2.0.CO;2","issn":"15507424","usgsCitation":"Augustine, D., Cully, J., and Johnson, T.L., 2007, Influence of fire on black-tailed prairie dog colony expansion in shortgrass steppe: Rangeland Ecology and Management, v. 60, no. 5, p. 538-542, https://doi.org/10.2111/1551-5028(2007)60[538:IOFOBP]2.0.CO;2.","startPage":"538","endPage":"542","numberOfPages":"5","costCenters":[],"links":[{"id":477241,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10150/643190","text":"External Repository"},{"id":211468,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2111/1551-5028(2007)60[538:IOFOBP]2.0.CO;2"},{"id":238761,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b33e4b0c8380cd622f7","contributors":{"authors":[{"text":"Augustine, D.J.","contributorId":43563,"corporation":false,"usgs":true,"family":"Augustine","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":428745,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cully, J.F. Jr.","contributorId":51041,"corporation":false,"usgs":true,"family":"Cully","given":"J.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":428746,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, T. L.","contributorId":91062,"corporation":false,"usgs":true,"family":"Johnson","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":428747,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031251,"text":"70031251 - 2007 - Population response to habitat fragmentation in a stream-dwelling brook trout population","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031251","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2980,"text":"PLoS ONE","active":true,"publicationSubtype":{"id":10}},"title":"Population response to habitat fragmentation in a stream-dwelling brook trout population","docAbstract":"Fragmentation can strongly influence population persistence and expression of life-history strategies in spatially-structured populations. In this study, we directly estimated size-specific dispersal, growth, and survival of stream-dwelling brook trout in a stream network with connected and naturally-isolated tributaries. We used multiple-generation, individual-based data to develop and parameterize a size-class and location-based population projection model, allowing us to test effects of fragmentation on population dynamics at local (i.e., subpopulation) and system-wide (i.e., metapopulation) scales, and to identify demographic rates which influence the persistence of isolated and fragmented populations. In the naturally-isolated tributary, persistence was associated with higher early juvenile survival (-45% greater), shorter generation time (one-half) and strong selection against large body size compared to the open system, resulting in a stage-distribution skewed towards younger, smaller fish. Simulating barriers to upstream migration into two currently-connected tribuory populations caused rapid (2-6 generations) local extinction. These local extinctions in turn increased the likelihood of system-wide extinction, as tributaries could no longer function as population sources. Extinction could be prevented in the open system if sufficient immigrants from downstream areas were available, but the influx of individuals necessary to counteract fragmentation effects was high (7-46% of the total population annually). In the absence of sufficient immigration, a demographic change (higher early survival characteristic of the isolated tributary) was also sufficient to rescue the population from fragmentation, suggesting that the observed differences in size distributions between the naturally-isolated and open system may reflect an evolutionary response to isolation. Combined with strong genetic divergence between the isolated tributary and open system, these results suggest that local adaptation can 'rescue' isolated populations, particularly in one-dimensional stream networks where both natural and anthropegenically-mediated isolation is common. However, whether rescue will occur before extinction depends critically on the race between adaptation and reduced survival in response to fragmentation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"PLoS ONE","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1371/journal.pone.0001139","issn":"19326203","usgsCitation":"Letcher, B., Nislow, K., Coombs, J., O'Donnell, M., and Dubreuil, T., 2007, Population response to habitat fragmentation in a stream-dwelling brook trout population: PLoS ONE, v. 2, no. 11, https://doi.org/10.1371/journal.pone.0001139.","costCenters":[],"links":[{"id":476992,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1371/journal.pone.0001139","text":"Publisher Index Page"},{"id":211431,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1371/journal.pone.0001139"},{"id":238717,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"11","noUsgsAuthors":false,"publicationDate":"2007-11-07","publicationStatus":"PW","scienceBaseUri":"505a7d8ae4b0c8380cd79feb","contributors":{"authors":[{"text":"Letcher, B. H. 0000-0003-0191-5678","orcid":"https://orcid.org/0000-0003-0191-5678","contributorId":48132,"corporation":false,"usgs":true,"family":"Letcher","given":"B.","middleInitial":"H.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":430735,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nislow, K.H.","contributorId":66477,"corporation":false,"usgs":true,"family":"Nislow","given":"K.H.","affiliations":[],"preferred":false,"id":430736,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coombs, J.A.","contributorId":91295,"corporation":false,"usgs":true,"family":"Coombs","given":"J.A.","affiliations":[],"preferred":false,"id":430737,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O'Donnell, M. J. 0000-0002-9089-2377","orcid":"https://orcid.org/0000-0002-9089-2377","contributorId":23670,"corporation":false,"usgs":true,"family":"O'Donnell","given":"M. J.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":430734,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dubreuil, T.L.","contributorId":106697,"corporation":false,"usgs":true,"family":"Dubreuil","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":430738,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70179829,"text":"70179829 - 2007 - Striving for collaborative science and communication through the Consortium for Research and Education on Emerging Contaminants (CREEC)","interactions":[],"lastModifiedDate":"2018-10-17T08:19:29","indexId":"70179829","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3720,"text":"Water Resources Impact","printIssn":"1522-3175","active":true,"publicationSubtype":{"id":10}},"title":"Striving for collaborative science and communication through the Consortium for Research and Education on Emerging Contaminants (CREEC)","docAbstract":"<p>Current analytical capabilities are allowing scientists to identify possible contaminants in the environment that were previously unmonitored or were present at concentrations too low for detection. New scientific evidence about the exposure pathways and potential impacts of some of these compounds on human or environmental health is regularly being published (Woodling et al., 2006; Drewes et al., 2005; Kinney et al., 2006; Gibs et al., 2007; Veldhoen et al., 2006). Recent news headlines have declared potential human health and ecological concerns regarding the occurrence of personal care products and pharmaceuticals in our environment. These are products that we regularly use (or create) in our homes, businesses, farms and industry, including plasticizers, flame retardants, detergents, pesticides and herbicides, antibacterial agents, steroids, antibiotics, and disinfection byproducts. These ‘emerging contaminants’ (ECs) are compounds that have recently been shown to occur widely in one or more environmental media, have been identified as being a potential public health or ecological risk, and yet adequate data are lacking to determine their actual risk (Younos, 2005; Soin and Smagghe, 2007; Hutchinson, 2007).</p>","language":"English","publisher":"American Water Resources Association","usgsCitation":"Brown, J., and Battaglin, W.A., 2007, Striving for collaborative science and communication through the Consortium for Research and Education on Emerging Contaminants (CREEC): Water Resources Impact, v. May 2007, p. 22-24.","productDescription":"3 p.","startPage":"22","endPage":"24","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":333388,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":333387,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.awra.org/impact/"}],"volume":"May 2007","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58808d72e4b01dfadfff155f","contributors":{"authors":[{"text":"Brown, Juliane B.","contributorId":74040,"corporation":false,"usgs":true,"family":"Brown","given":"Juliane B.","affiliations":[],"preferred":false,"id":658857,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Battaglin, William A. 0000-0001-7287-7096 wbattagl@usgs.gov","orcid":"https://orcid.org/0000-0001-7287-7096","contributorId":1527,"corporation":false,"usgs":true,"family":"Battaglin","given":"William","email":"wbattagl@usgs.gov","middleInitial":"A.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":658858,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70186201,"text":"70186201 - 2007 - Seabirds as indicators of marine ecosystems: Introduction: A modern role for seabirds as indicators","interactions":[],"lastModifiedDate":"2017-03-31T13:14:18","indexId":"70186201","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":"Seabirds as indicators of marine ecosystems: Introduction: A modern role for seabirds as indicators","docAbstract":"<p>A key requirement for implementing ecosystem-based management is to obtain timely information on significant fluctuations in the ecosystem (Botsford et al. 1997). However, obtaining all necessary information about physical and biological changes at appropriate&nbsp;temporal and spatial scales is a daunting task. Intuitively, one might assume that physical data are more important for the interpretation of ecosystem changes than biological data, but analyses of time series data suggest otherwise: physical data are more erratic and&nbsp;often confusing over the short term compared to biological data, which tend to fluctuate less on annual time scales (Hare &amp; Mantua 2000). Even so, biological time-series may also be confusing when coexisting marine species respond differently to ecosystem variability. For example, while warming temperatures in the Gulf of Alaska following the 1976 to 1977 regime shift favored an increase in gadoids and flatfish, a variety of forage fish and pandalid shrimp species virtually disappeared (Anderson &amp; Piatt 1999). Zooplankton communities in the Gulf of Alaska also demonstrated similar patterns of response (Francis et al. 1998). At the basin scale, favorable conditions for salmon in Alaska following the regime shift were matched inversely by poor conditions in the California Current (Francis et al. 1998). In marine birds, subtropical species increased, while subarctic ones decreased during a warming phase in the southern California Bight. Clearly, no single index can tell the whole story accurately. Multi-species, multi-region, and multi-trophic level approaches are needed to quantify fluctuations in marine ecosystem processes and in the distribution and abundance of its inhabitants, to determine critical parameter thresholds and to use this information in management and marine conservation.</p>","language":"English","publisher":"Inter-Research","doi":"10.3354/meps07070","usgsCitation":"Piatt, J.F., Sydeman, W., and Wiese, F., 2007, Seabirds as indicators of marine ecosystems: Introduction: A modern role for seabirds as indicators: Marine Ecology Progress Series, v. 352, p. 199-204, https://doi.org/10.3354/meps07070.","productDescription":"6 p.","startPage":"199","endPage":"204","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476940,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps07070","text":"Publisher Index Page"},{"id":338964,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"352","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58df6ac8e4b02ff32c6aea79","contributors":{"authors":[{"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":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":687861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sydeman, William J.","contributorId":172574,"corporation":false,"usgs":false,"family":"Sydeman","given":"William J.","affiliations":[],"preferred":false,"id":687862,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wiese, Francis","contributorId":172575,"corporation":false,"usgs":false,"family":"Wiese","given":"Francis","email":"","affiliations":[],"preferred":false,"id":687863,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031664,"text":"70031664 - 2007 - Growth rate differences between resident native brook trout and non-native brown trout","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031664","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":"Growth rate differences between resident native brook trout and non-native brown trout","docAbstract":"Between species and across season variation in growth was examined by tagging and recapturing individual brook trout Salvelinus fontinalis and brown trout Salmo trutta across seasons in a small stream (West Brook, Massachusetts, U.S.A.). Detailed information on body size and growth are presented to (1) test whether the two species differed in growth within seasons and (2) characterize the seasonal growth patterns for two age classes of each species. Growth differed between species in nearly half of the season- and age-specific comparisons. When growth differed, non-native brown trout grew faster than native brook trout in all but one comparison. Moreover, species differences were most pronounced when overall growth was high during the spring and early summer. These growth differences resulted in size asymmetries that were sustained over the duration of the study. A literature survey also indicated that non-native salmonids typically grow faster than native salmonids when the two occur in sympatry. Taken together, these results suggest that differences in growth are not uncommon for coexisting native and non-native salmonids. ?? 2007 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Fish Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1095-8649.2007.01615.x","issn":"00221112","usgsCitation":"Carlson, S., Hendry, A., and Letcher, B., 2007, Growth rate differences between resident native brook trout and non-native brown trout: Journal of Fish Biology, v. 71, no. 5, p. 1430-1447, https://doi.org/10.1111/j.1095-8649.2007.01615.x.","startPage":"1430","endPage":"1447","numberOfPages":"18","costCenters":[],"links":[{"id":240045,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212545,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1095-8649.2007.01615.x"}],"volume":"71","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-10-22","publicationStatus":"PW","scienceBaseUri":"505a2dffe4b0c8380cd5c1fe","contributors":{"authors":[{"text":"Carlson, S.M.","contributorId":105917,"corporation":false,"usgs":true,"family":"Carlson","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":432578,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hendry, A.P.","contributorId":89351,"corporation":false,"usgs":true,"family":"Hendry","given":"A.P.","email":"","affiliations":[],"preferred":false,"id":432577,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Letcher, B. H. 0000-0003-0191-5678","orcid":"https://orcid.org/0000-0003-0191-5678","contributorId":48132,"corporation":false,"usgs":true,"family":"Letcher","given":"B.","middleInitial":"H.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":432576,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031598,"text":"70031598 - 2007 - Informing the network: Improving communication with interface communities during wildland fire","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70031598","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1911,"text":"Human Ecology Review","active":true,"publicationSubtype":{"id":10}},"title":"Informing the network: Improving communication with interface communities during wildland fire","docAbstract":"An interagency research team studied fire communications that took place during different stages of two wildfires in southern California: one small fire of short duration and one large fire of long duration. This \"quick- response\" research showed that pre-fire communication planning was particularly effective for smaller fire events and parts of that planning proved invaluable for the large fire event as well. Information seeking by the affected public relied on locally convenient sources during the small fire. During the large fire, widespread evacuations disrupted many of the local informal communication networks. Residents' needs were for \"real-time, \" place-specific information: precise location, severity, size, and direction of spread of the fires. Fire management agencies must contribute real-time, place-specific fire information when it is most needed by the affected public, as they try to make sense out of the chaos of a wildland fire. Disseminating fire information as broadly as possible through multiple pathways will maximize the probability of the public finding the information they need. ?? Society for Human Ecology.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Human Ecology Review","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10744827","usgsCitation":"Taylor, J.G., Gillette, S., Hodgson, R., Downing, J., Burns, M., Chavez, D., and Hogan, J., 2007, Informing the network: Improving communication with interface communities during wildland fire: Human Ecology Review, v. 14, no. 2, p. 198-211.","startPage":"198","endPage":"211","numberOfPages":"14","costCenters":[],"links":[{"id":240146,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3bbce4b0c8380cd627cb","contributors":{"authors":[{"text":"Taylor, J. G.","contributorId":33671,"corporation":false,"usgs":true,"family":"Taylor","given":"J.","middleInitial":"G.","affiliations":[],"preferred":false,"id":432265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gillette, S.C.","contributorId":102844,"corporation":false,"usgs":true,"family":"Gillette","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":432269,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hodgson, R.W.","contributorId":89353,"corporation":false,"usgs":true,"family":"Hodgson","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":432267,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Downing, J.L.","contributorId":46764,"corporation":false,"usgs":true,"family":"Downing","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":432266,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Burns, M.R.","contributorId":22149,"corporation":false,"usgs":true,"family":"Burns","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":432263,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chavez, D.J.","contributorId":33536,"corporation":false,"usgs":true,"family":"Chavez","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":432264,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hogan, J.T.","contributorId":101459,"corporation":false,"usgs":true,"family":"Hogan","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":432268,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70031576,"text":"70031576 - 2007 - Survival and breeding advantages of larger Black Brant (<i>Branta bernicla nigricans</i>) 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 (<i>Branta bernicla nigricans</i>) goslings: Within- and among-cohort variation","docAbstract":"<p><span>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 (</span><i>Branta bernicla nigricans</i><span>). 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.</span></p>","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 (<i>Branta bernicla nigricans</i>) 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":70031502,"text":"70031502 - 2007 - Prevalence and distribution of pox-like lesions, avian malaria, and mosquito vectors in Kipahulu valley, Haleakala National Park, Hawai'i, USA","interactions":[],"lastModifiedDate":"2015-04-06T10:07:37","indexId":"70031502","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Prevalence and distribution of pox-like lesions, avian malaria, and mosquito vectors in Kipahulu valley, Haleakala National Park, Hawai'i, USA","docAbstract":"<p><span>We determined prevalence and altitudinal distribution of introduced avian malarial infections (</span><i>Plasmodium relictum</i><span>) and pox-like lesions (</span><i>Avipoxvirus</i><span>) in forest birds from Kīpahulu Valley, Haleakalā National Park, on the island of Maui, and we identified primary larval habitat for the mosquito vector of this disease. This intensively managed wilderness area and scientific reserve is one of the most pristine areas of native forest remaining in the state of Hawai&lsquo;i, and it will become increasingly important as a site for restoration and recovery of endangered forest birds. Overall prevalence of malarial infections in the valley was 8% (11/133) in native species and 4% (4/101) in nonnative passerines; prevalence was lower than reported for comparable elevations and habitats elsewhere in the state. Infections occurred primarily in &lsquo;Apapane (</span><i>Himatione sanguinea</i><span>) and Hawai&lsquo;i &lsquo;Amakihi (</span><i>Hemignathus virens</i><span>) at elevations below 1,400 m. Pox-like lesions were detected in only two Hawai&lsquo;i &lsquo;Amakihi (2%; 2/94) at elevations below 950 m. We did not detect malaria or pox in birds caught at 1,400 m in upper reaches of the valley. Adult mosquitoes (</span><i>Culex quinquefasciatus</i><span>) were captured at four sites at elevations of 640, 760, 915, and 975 m, respectively.&nbsp;</span><i>Culex quinquefasciatus</i><span>&nbsp;larvae were found only in rock holes along intermittent tributaries of the two largest streams in the valley, but not in standing surface water, pig wallows, ground pools, tree cavities, and tree fern cavities. Mosquito populations in the valley are low, and they are probably influenced by periods of high rainfall that flush stream systems.</span></p>","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/0090-3558-43.4.567","issn":"00903558","usgsCitation":"Aruch, S., Atkinson, C.T., Savage, A.F., and LaPointe, D., 2007, Prevalence and distribution of pox-like lesions, avian malaria, and mosquito vectors in Kipahulu valley, Haleakala National Park, Hawai'i, USA: Journal of Wildlife Diseases, v. 43, no. 4, p. 567-575, https://doi.org/10.7589/0090-3558-43.4.567.","startPage":"567","endPage":"575","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":487587,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.7589/0090-3558-43.4.567","text":"Publisher Index Page"},{"id":239660,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kipahulu Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.25442504882812,\n              20.759966308244078\n            ],\n            [\n              -156.17889404296875,\n              20.736850235081647\n            ],\n            [\n              -156.06765747070312,\n              20.74134530376402\n            ],\n            [\n              -156.04843139648438,\n              20.726575291034354\n            ],\n            [\n              -156.02783203124997,\n              20.7233642280067\n            ],\n            [\n              -156.01203918457028,\n    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0000-0002-4232-5335 catkinson@usgs.gov","orcid":"https://orcid.org/0000-0002-4232-5335","contributorId":1124,"corporation":false,"usgs":true,"family":"Atkinson","given":"Carter","email":"catkinson@usgs.gov","middleInitial":"T.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":5049,"text":"Pacific Islands Ecosys Research Center","active":true,"usgs":true},{"id":521,"text":"Pacific Island Ecosystems Research Center","active":false,"usgs":true}],"preferred":true,"id":431823,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Savage, Amy F.","contributorId":96074,"corporation":false,"usgs":true,"family":"Savage","given":"Amy","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":431826,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"LaPointe, Dennis dlapointe@usgs.gov","contributorId":2926,"corporation":false,"usgs":true,"family":"LaPointe","given":"Dennis","email":"dlapointe@usgs.gov","affiliations":[{"id":5049,"text":"Pacific Islands Ecosys Research Center","active":true,"usgs":true}],"preferred":false,"id":431824,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031457,"text":"70031457 - 2007 - Correlations between Cassini VIMS spectra and RADAR SAR images: Implications for Titan's surface composition and the character of the Huygens Probe Landing Site","interactions":[],"lastModifiedDate":"2018-12-07T15:44:43","indexId":"70031457","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3083,"text":"Planetary and Space Science","active":true,"publicationSubtype":{"id":10}},"title":"Correlations between Cassini VIMS spectra and RADAR SAR images: Implications for Titan's surface composition and the character of the Huygens Probe Landing Site","docAbstract":"<p><span>Titan's vast equatorial fields of RADAR-dark longitudinal dunes seen in Cassini RADAR synthetic aperture images correlate with one of two dark surface units discriminated as “brown” and “blue” in Visible and Infrared Mapping Spectrometer (VIMS) color composites of short-wavelength infrared spectral cubes (RGB as 2.0, 1.6, 1.3</span><span>&nbsp;</span><span>μm). In such composites bluer materials exhibit higher reflectance at 1.3</span><span>&nbsp;</span><span>μm and lower at 1.6 and 2.0</span><span>&nbsp;</span><span>μm. The dark brown unit is highly correlated with the RADAR-dark dunes. The dark brown unit shows less evidence of water ice suggesting that the saltating grains of the dunes are largely composed of hydrocarbons and/or nitriles. In general, the bright units also show less evidence of absorption due to water ice and are inferred to consist of deposits of bright fine precipitating tholin aerosol dust. Some set of chemical/mechanical processes may be converting the bright fine-grained aerosol deposits into the dark saltating hydrocarbon and/or nitrile grains. Alternatively the dark dune materials may be derived from a different type of air aerosol photochemical product than are the bright materials. In our model, both the bright aerosol and dark hydrocarbon dune deposits mantle the VIMS dark blue water ice-rich substrate. We postulate that the bright mantles are effectively invisible (transparent) in RADAR synthetic aperture radar (SAR) images leading to lack of correlation in the RADAR images with optically bright mantling units. RADAR images mostly show only dark dunes and the water ice substrate that varies in roughness, fracturing, and porosity. If the rate of deposition of bright aerosol is 0.001–0.01</span><span>&nbsp;</span><span>μm/yr, the surface would be coated (to optical instruments) in hundreds-to-thousands of years unless cleansing processes are active. The dark dunes must be mobile on this very short timescale to prevent the accumulation of bright coatings. Huygens landed in a region of the VIMS bright and dark blue materials and about 30</span><span>&nbsp;</span><span>km south of the nearest occurrence of dunes visible in the RADAR SAR images. Fluvial/pluvial processes, every few centuries or millennia, must be cleansing the dark floors of the incised channels and scouring the dark plains at the Huygens landing site both imaged by Descent Imager/Spectral Radiometer (DISR).</span></p>","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.2007.04.014","issn":"00320633","usgsCitation":"Soderblom, L.A., Kirk, R.L., Lunine, J.I., Anderson, J.A., Baines, K.H., Barnes, J.W., Barrett, J.M., Brown, R.H., Buratti, B.J., Clark, R.N., Cruikshank, D.P., Elachi, C., Janssen, M.A., Jaumann, R., Karkoschka, E., Le Mouélic, S., Lopes, R., Lorenz, R.D., McCord, T.B., Nicholson, P.D., Radebaugh, J., Rizk, B., Sotin, C., Stofan, E.R., Sucharski, T.L., Tomasko, M.G., and Wall, S.D., 2007, Correlations between Cassini VIMS spectra and RADAR SAR images: Implications for Titan's surface composition and the character of the Huygens Probe Landing Site: Planetary and Space Science, v. 55, no. 13, p. 2025-2036, https://doi.org/10.1016/j.pss.2007.04.014.","productDescription":"12 p.","startPage":"2025","endPage":"2036","numberOfPages":"12","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":240028,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Titan","volume":"55","issue":"13","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc4ce4b0c8380cd4e1ff","contributors":{"authors":[{"text":"Soderblom, Laurence A. 0000-0002-0917-853X lsoderblom@usgs.gov","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":2721,"corporation":false,"usgs":true,"family":"Soderblom","given":"Laurence","email":"lsoderblom@usgs.gov","middleInitial":"A.","affiliations":[{"id":131,"text":"Astrogeology Science 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,{"id":70031408,"text":"70031408 - 2007 - In situ time-series measurements of subseafloor sediment properties","interactions":[],"lastModifiedDate":"2023-07-21T12:03:17.038477","indexId":"70031408","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1941,"text":"IEEE Journal of Oceanic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"In situ time-series measurements of subseafloor sediment properties","docAbstract":"<div class=\"abstract-text row g-0\"><div class=\"col-12\"><div class=\"u-mb-1\"><div>The capabilities and diversity of subsurface sediment sensors lags significantly from what is available for the water column, thereby limiting progress in understanding time-dependent seabed exchange and high-frequency acoustics. To help redress this imbalance, a new instrument, the autonomous sediment profiler (ASP), is described herein. ASP consists of a four-electrode, Wenner-type resistivity probe and a thermistor that log data at 0.1-cm vertical intervals over a 58-cm vertical profile. To avoid resampling the same spot on the seafloor, the probes are moved horizontally within a 20 times 100-cm<span>&nbsp;</span><sup>-2</sup><span>&nbsp;</span>area in one of three preselected patterns. Memory and power capacities permit sampling at hourly intervals for up to 3-mo duration. The system was tested in a laboratory tank and shown to be able to resolve high-frequency sediment consolidation, as well as changes in sediment roughness. In a field test off the southern coast of France, the system collected resistivity and temperature data at hourly intervals for 16 d. Coupled with environmental data collected on waves, currents, and suspended sediment, the ASP is shown to be useful for understanding temporal evolution of subsurface sediment porosity, although no large depositional or erosional events occurred during the deployment. Following a rapid decrease in bottom-water temperature, the evolution of the subsurface temperature field was consistent with the 1-D thermal diffusion equation coupled with advection in the upper 3-4 cm. Collectively, the laboratory and field tests yielded promising results on time-dependent seabed change.</div></div></div></div>","language":"English","publisher":"IEEE","doi":"10.1109/JOE.2007.907927","issn":"03649059","usgsCitation":"Wheatcroft, R.A., Stevens, A., and Johnson, R., 2007, In situ time-series measurements of subseafloor sediment properties: IEEE Journal of Oceanic Engineering, v. 32, no. 4, p. 862-871, https://doi.org/10.1109/JOE.2007.907927.","productDescription":"10 p.","startPage":"862","endPage":"871","numberOfPages":"10","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":239855,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3986e4b0c8380cd6195f","contributors":{"authors":[{"text":"Wheatcroft, R. A.","contributorId":76503,"corporation":false,"usgs":false,"family":"Wheatcroft","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":431378,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stevens, A.W.","contributorId":42424,"corporation":false,"usgs":true,"family":"Stevens","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":431377,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, R.V.","contributorId":14639,"corporation":false,"usgs":true,"family":"Johnson","given":"R.V.","affiliations":[],"preferred":false,"id":431376,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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