{"pageNumber":"2311","pageRowStart":"57750","pageSize":"25","recordCount":184652,"records":[{"id":70035406,"text":"70035406 - 2007 - Origin of narrow terranes and adjacent major terranes occurring along the Denali fault in the Eastern and Central Alaska Range, Alaska","interactions":[],"lastModifiedDate":"2023-10-13T12:26:36.798963","indexId":"70035406","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Origin of narrow terranes and adjacent major terranes occurring along the Denali fault in the Eastern and Central Alaska Range, Alaska","docAbstract":"<div class=\"category-section content-section js-content-section\" data-statsid=\"4783916\"><p>Several narrow terranes occur along the Denali fault in the Eastern and Central Alaska Range in Southern Alaska. These terranes are the Aurora Peak, Cottonwood Creek, Maclaren, Pingston, and Windy terranes, and a terrane of ultramafic and associated rocks. Exterior to the narrow terranes to the south is the major Wrangellia island arc composite terrane, and to the north is the major Yukon-Tanana metamorphosed continental margin terrane. Overlying mainly the northern margin of the Wrangellia composite terrane are the Kahiltna overlap assemblage to the west, and the Gravina-Nutzotin-Gambier volcanic-plutonic-sedimentary belt to the east and southeast. The various narrow terranes are interpreted as the result of translation of fragments of larger terranes during two major tectonic events: (1) Late Jurassic to mid-Cretaceous accretion of the Wrangellia island arc composite terrane (or superterrane composed of the Wrangellia, Peninsular, and Alexander terranes) and associated subduction zone complexes; and (2) starting in about the Late Cretaceous, dextral transport of the Wrangellia composite terrane along the Denali fault. These two major tectonic events caused: (1) entrapment of a lens of oceanic lithosphere along the suture belt between the Wrangellia composite terrane and the North American Craton Margin and outboard accreted terranes to form the ultramafic and mafic part of the terrane of ultra-mafic and associated rocks, (2) subsequent dextral translation along the Denali fault of the terrane of ultramafic and associated rocks, (3) dextral translation along the Denali fault of the Aurora Peak, Cottonwood Creek, and Maclaren and continental margin arc terranes from part of the Coast plutonic-metamorphic complex (Coast-North Cascade plutonic belt) in the southwest Yukon Territory or Southeastern Alaska, (4) dextral translation along the Denali fault of the Pingston passive continental margin from a locus along the North American Continental Margin, and (5) formation and dextral transport along the Denali fault of the mélange of the Windy terrane from fragments of the Gravina-Nutzotin-Gambier volcanic-plutonic-sedimentary belt and from the North American Continental Margin.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/2007.2431(06)","issn":"00721077","usgsCitation":"Nokleberg, W., and Richter, D., 2007, Origin of narrow terranes and adjacent major terranes occurring along the Denali fault in the Eastern and Central Alaska Range, Alaska: Special Paper of the Geological Society of America, no. 431, p. 129-154, https://doi.org/10.1130/2007.2431(06).","productDescription":"26 p.","startPage":"129","endPage":"154","numberOfPages":"26","costCenters":[],"links":[{"id":243081,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"431","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a70e8e4b0c8380cd76325","contributors":{"authors":[{"text":"Nokleberg, W. J. 0000-0002-1574-8869","orcid":"https://orcid.org/0000-0002-1574-8869","contributorId":68312,"corporation":false,"usgs":true,"family":"Nokleberg","given":"W. J.","affiliations":[],"preferred":false,"id":450508,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richter, D.H.","contributorId":43325,"corporation":false,"usgs":true,"family":"Richter","given":"D.H.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":450507,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031369,"text":"70031369 - 2007 - A record of large earthquakes on the southern Hayward fault for the past 1800 years","interactions":[],"lastModifiedDate":"2023-07-12T11:20:17.996346","indexId":"70031369","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":"A record of large earthquakes on the southern Hayward fault for the past 1800 years","docAbstract":"This is the second article presenting evidence of the occurrence and timing of paleoearthquakes on the southern Hayward fault as interpreted from trenches excavated within a sag pond at the Tyson's Lagoon site in Fremont, California. We use the information to estimate the mean value and aperiodicity of the fault's recurrence interval (RI): two fundamental parameters for estimation of regional seismic hazard. An earlier article documented the four most recent earthquakes, including the historic 1868 earthquake. In this article we present evidence for at least seven earlier paleoruptures since about A.D. 170. We document these events with evidence for ground rupture, such as the presence of blocky colluvium at the base of the main trace fault scarp, and by corroborating evidence such as simultaneous liquefaction or an increase in deformation immediately below event horizons. The mean RI is 170 ?? 82 yr (1??, standard deviation of the sample), aperiodicity is 0.48, and individual intervals may be expected to range from 30 to 370 yr (95.4% confidence). The mean RI is consistent with the recurrence model of the Working Group on California Earthquake Probabilities (2003) (mean, 161 yr; range, 99 yr [2.5%]; 283 yr [97.5%]). We note that the mean RI for the five most recent events may have been only 138 ?? 58 yr (1??). Hypothesis tests for the shorter RI do not demonstrate that any recent acceleration has occurred compared to the earlier period or the entire 1800-yr record, principally because of inherent uncertainties of the event ages.","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120060258","issn":"00371106","usgsCitation":"Lienkaemper, J.J., and Williams, P.L., 2007, A record of large earthquakes on the southern Hayward fault for the past 1800 years: Bulletin of the Seismological Society of America, v. 97, no. 6, p. 1803-1819, https://doi.org/10.1785/0120060258.","productDescription":"17 p.","startPage":"1803","endPage":"1819","numberOfPages":"17","costCenters":[],"links":[{"id":239785,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e53ce4b0c8380cd46c15","contributors":{"authors":[{"text":"Lienkaemper, J. J.","contributorId":71947,"corporation":false,"usgs":true,"family":"Lienkaemper","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":431224,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, P. L.","contributorId":79109,"corporation":false,"usgs":true,"family":"Williams","given":"P.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":431225,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030070,"text":"70030070 - 2007 - Biodegradation of PAHs and PCBs in soils and sludges","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70030070","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Biodegradation of PAHs and PCBs in soils and sludges","docAbstract":"Results from a multi-year, pilot-scale land treatment project for PAHs and PCBs biodegradation were evaluated. A mathematical model, capable of describing sorption, sequestration, and biodegradation in soil/water systems, is applied to interpret the efficacy of a sequential active-passive biotreatment process of organic chemicals on remediation sites. To account for the recalcitrance of PAHs and PCBs in soils and sludges during long-term biotreatment, this model comprises a kinetic equation for organic chemical intraparticle sequestration process. Model responses were verified by comparison to measurements of biodegradation of PAHs and PCBs in land treatment units; a favorable match was found between them. Model simulations were performed to predict on-going biodegradation behavior of PAHs and PCBs in land treatment units. Simulation results indicate that complete biostabilization will be achieved when the concentration of reversibly sorbed chemical (S RA) reduces to undetectable levels, with a certain amount of irreversibly sequestrated residual chemical (S IA) remaining within the soil particle solid phase. The residual fraction (S IA) tends to lose its original chemical and biological activity, and hence, is much less available, toxic, and mobile than the \"free\" compounds. Therefore, little or no PAHs and PCBs will leach from the treatment site and constitutes no threat to human health or the environment. Biotreatment of PAHs and PCBs can be terminated accordingly. Results from the pilot-scale testing data and model calculations also suggest that a significant fraction (10-30%) of high-molecular-weight PAHs and PCBs could be sequestrated and become unavailable for biodegradation. Bioavailability (large K d , i.e., slow desorption rate) is the key factor limiting the PAHs degradation. However, both bioavailability and bioactivity (K in Monod kinetics, i.e., number of microbes, nutrients, and electron acceptor, etc.) regulate PCBs biodegradation. The sequential active-passive biotreatment can be a cost-effective approach for remediation of highly hydrophobic organic contaminants. The mathematical model proposed here would be useful in the design and operation of such organic chemical biodegradation processes on remediation sites. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11270-006-9299-3","issn":"00496979","usgsCitation":"Liu, L., Tindall, J., and Friedel, M., 2007, Biodegradation of PAHs and PCBs in soils and sludges: Water, Air, & Soil Pollution, v. 181, no. 1-4, p. 281-296, https://doi.org/10.1007/s11270-006-9299-3.","startPage":"281","endPage":"296","numberOfPages":"16","costCenters":[],"links":[{"id":212727,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11270-006-9299-3"},{"id":240259,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"181","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2007-02-17","publicationStatus":"PW","scienceBaseUri":"5059f146e4b0c8380cd4ab4e","contributors":{"authors":[{"text":"Liu, L.","contributorId":18481,"corporation":false,"usgs":true,"family":"Liu","given":"L.","email":"","affiliations":[],"preferred":false,"id":425595,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tindall, J.A.","contributorId":25711,"corporation":false,"usgs":true,"family":"Tindall","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":425596,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Friedel, M.J.","contributorId":90823,"corporation":false,"usgs":true,"family":"Friedel","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":425597,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030010,"text":"70030010 - 2007 - Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis","interactions":[],"lastModifiedDate":"2016-05-31T15:50:29","indexId":"70030010","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis","docAbstract":"<p><span>Ringed seals (</span>Phoca hispida<span>&nbsp;Schreber, 1775 =&nbsp;</span>Pusa hispida<span>&nbsp;(Schreber, 1775)) and bearded seals (</span>Erignathus barbatus<span>&nbsp;(Erxleben, 1777)) represent the majority of the polar bear (</span>Ursus maritimus<span>&nbsp;Phipps, 1774) annual diet. However, remains of lower trophic level bowhead whales (</span>Balaena mysticetus<span>&nbsp;L., 1758) are available in the southern Beaufort Sea and their dietary contribution to polar bears has been unknown. We used stable isotope (</span><sup>13</sup><span>C/</span><sup>12</sup><span>C, &delta;</span><sup><sup>13</sup></sup><span>C,&nbsp;</span><sup>15</sup><span>N/</span><sup>14</sup><span>N, and &delta;</span><sup><sup>15</sup></sup><span>N) analysis to determine the diet composition of polar bears sampled along Alaska&rsquo;s Beaufort Sea coast in March and April 2003 and 2004. The mean &delta;</span><sup><sup>15</sup></sup><span>N values of polar bear blood cells were 19.5&permil; (SD = 0.7&permil;) in 2003 and 19.9&permil; (SD = 0.7&permil;) in 2004. Mixing models indicated bowhead whales composed 11%&ndash;26% (95% CI) of the diets of sampled polar bears in 2003, and 0%&ndash;14% (95% CI) in 2004. This suggests significant variability in the proportion of lower trophic level prey in polar bear diets among individuals and between years. Polar bears depend on sea ice for hunting seals, and the temporal and spatial availabilities of sea ice are projected to decline. Consumption of low trophic level foods documented here suggests bears may increasingly scavenge such foods in the future.</span></p>","language":"English","publisher":"NRC Research Press","doi":"10.1139/Z07-036","issn":"00084301","usgsCitation":"Bentzen, T., Follmann, E.H., Amstrup, S.C., York, G., Wooller, M.J., and O'Hara, T., 2007, Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis: Canadian Journal of Zoology, v. 85, no. 5, p. 596-608, https://doi.org/10.1139/Z07-036.","productDescription":"13 p.","startPage":"596","endPage":"608","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":240363,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212819,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/Z07-036"}],"volume":"85","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc16ce4b08c986b32a577","contributors":{"authors":[{"text":"Bentzen, T.W.","contributorId":97324,"corporation":false,"usgs":true,"family":"Bentzen","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":425278,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Follmann, Erich H.","contributorId":24828,"corporation":false,"usgs":false,"family":"Follmann","given":"Erich","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425275,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":425277,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"York, G.S.","contributorId":103857,"corporation":false,"usgs":true,"family":"York","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":425279,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wooller, M. J.","contributorId":17049,"corporation":false,"usgs":true,"family":"Wooller","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":425274,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"O'Hara, T. M.","contributorId":64610,"corporation":false,"usgs":true,"family":"O'Hara","given":"T. M.","affiliations":[],"preferred":false,"id":425276,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70029829,"text":"70029829 - 2007 - Tag return models allowing for harvest and catch and release: Evidence of environmental and management impacts on striped bass fishing and natural mortality rates","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029829","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Tag return models allowing for harvest and catch and release: Evidence of environmental and management impacts on striped bass fishing and natural mortality rates","docAbstract":"Catch-and-release fisheries have become very important in the management of overexploited recreational fish stocks. Tag return studies, where the tag is removed regardless of fish disposition, have been used to assess the effectiveness of restoration efforts for these fisheries. We extend the instantaneous rate formulation of tag return models to allow for catch and release as well as harvest. The key point of our methods is that, given an estimate of the tag reporting rate, the fishing mortality rate (F) is separated into two components: the mortality on harvested fish and the \"mortality\" on tags (because the lags are removed) of fish released alive. The total fishing mortality rate for untagged fish is the sum of the Fs due to harvest and hooking mortality suffered by fish released alive. Natural mortality rates can also be estimated. Both age-independent models and age-dependent models are constructed, and the age-dependent models are illustrated by application to data from a study of striped bass Morone saxatilis in Chesapeake Bay from 1991 to 2003 by the Maryland Department of Natural Resources. By fitting models of the natural mortality rate with limited age and year dependence, we demonstrate an overall decrease in natural mortality rates as fish age and provide evidence of an increase in natural mortality beginning in the late 1990s, when an outbreak of the disease mycobacteriosis is thought to have begun. Our results indicate that fishing mortality is age dependent; selectivity increases up to age 6, when fish appear to be fully recruited to the fishery. There is also evidence of an increase in fishing mortality since 1995, when regulations were relaxed. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-089.1","issn":"02755947","usgsCitation":"Jiang, H., Pollock, K.H., Brownie, C., Hoenig, J., Latour, R., Wells, B., and Hightower, J., 2007, Tag return models allowing for harvest and catch and release: Evidence of environmental and management impacts on striped bass fishing and natural mortality rates: North American Journal of Fisheries Management, v. 27, no. 2, p. 387-396, https://doi.org/10.1577/M06-089.1.","startPage":"387","endPage":"396","numberOfPages":"10","costCenters":[],"links":[{"id":212655,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-089.1"},{"id":240176,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-05-01","publicationStatus":"PW","scienceBaseUri":"505ba3b6e4b08c986b31fe38","contributors":{"authors":[{"text":"Jiang, H.","contributorId":83731,"corporation":false,"usgs":true,"family":"Jiang","given":"H.","affiliations":[],"preferred":false,"id":424510,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pollock, K. H.","contributorId":65184,"corporation":false,"usgs":false,"family":"Pollock","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":424509,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brownie, C.","contributorId":43463,"corporation":false,"usgs":true,"family":"Brownie","given":"C.","affiliations":[],"preferred":false,"id":424507,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hoenig, J.M.","contributorId":54007,"corporation":false,"usgs":true,"family":"Hoenig","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":424508,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Latour, R.J.","contributorId":10620,"corporation":false,"usgs":true,"family":"Latour","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":424505,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wells, B.K.","contributorId":91303,"corporation":false,"usgs":true,"family":"Wells","given":"B.K.","email":"","affiliations":[],"preferred":false,"id":424511,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hightower, J.E.","contributorId":16605,"corporation":false,"usgs":true,"family":"Hightower","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":424506,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70190544,"text":"70190544 - 2007 - Sea otters in a dirty ocean","interactions":[],"lastModifiedDate":"2017-11-17T16:30:26","indexId":"70190544","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2528,"text":"Journal of the American Veterinary Medical Association","active":true,"publicationSubtype":{"id":10}},"title":"Sea otters in a dirty ocean","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"AVMA","doi":"10.2460/javma.231.11.1648","usgsCitation":"Jessup, D., Miller, M.A., Johnson, C.K., Conrad, P., Tinker, M.T., Estes, J.A., and Mazet, J.A., 2007, Sea otters in a dirty ocean: Journal of the American Veterinary Medical Association, v. 231, no. 11, p. 1648-1652, https://doi.org/10.2460/javma.231.11.1648.","productDescription":"5 p.","startPage":"1648","endPage":"1652","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":345517,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"231","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59b10934e4b020cdf7d8d9ec","contributors":{"authors":[{"text":"Jessup, David A.","contributorId":43206,"corporation":false,"usgs":false,"family":"Jessup","given":"David A.","affiliations":[{"id":6952,"text":"California Department of Fish and Wildlife","active":true,"usgs":false}],"preferred":false,"id":709701,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Melissa A.","contributorId":57701,"corporation":false,"usgs":false,"family":"Miller","given":"Melissa","email":"","middleInitial":"A.","affiliations":[{"id":39007,"text":"CA Dept of Fish and Wildlife","active":true,"usgs":false}],"preferred":false,"id":709702,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Christine Kreuder","contributorId":100679,"corporation":false,"usgs":true,"family":"Johnson","given":"Christine","email":"","middleInitial":"Kreuder","affiliations":[],"preferred":false,"id":709703,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Conrad, Patricia A.","contributorId":88289,"corporation":false,"usgs":true,"family":"Conrad","given":"Patricia A.","affiliations":[],"preferred":false,"id":709704,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tinker, M. Tim 0000-0002-3314-839X ttinker@usgs.gov","orcid":"https://orcid.org/0000-0002-3314-839X","contributorId":2796,"corporation":false,"usgs":true,"family":"Tinker","given":"M.","email":"ttinker@usgs.gov","middleInitial":"Tim","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":709705,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Estes, James A. jim_estes@usgs.gov","contributorId":53325,"corporation":false,"usgs":true,"family":"Estes","given":"James","email":"jim_estes@usgs.gov","middleInitial":"A.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":6949,"text":"University of California, Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":709706,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Mazet, Jonna A.K.","contributorId":68444,"corporation":false,"usgs":true,"family":"Mazet","given":"Jonna","email":"","middleInitial":"A.K.","affiliations":[],"preferred":false,"id":709707,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70029717,"text":"70029717 - 2007 - Latin hypercube approach to estimate uncertainty in ground water vulnerability","interactions":[],"lastModifiedDate":"2012-03-12T17:21:39","indexId":"70029717","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Latin hypercube approach to estimate uncertainty in ground water vulnerability","docAbstract":"A methodology is proposed to quantify prediction uncertainty associated with ground water vulnerability models that were developed through an approach that coupled multivariate logistic regression with a geographic information system (GIS). This method uses Latin hypercube sampling (LHS) to illustrate the propagation of input error and estimate uncertainty associated with the logistic regression predictions of ground water vulnerability. Central to the proposed method is the assumption that prediction uncertainty in ground water vulnerability models is a function of input error propagation from uncertainty in the estimated logistic regression model coefficients (model error) and the values of explanatory variables represented in the GIS (data error). Input probability distributions that represent both model and data error sources of uncertainty were simultaneously sampled using a Latin hypercube approach with logistic regression calculations of probability of elevated nonpoint source contaminants in ground water. The resulting probability distribution represents the prediction intervals and associated uncertainty of the ground water vulnerability predictions. The method is illustrated through a ground water vulnerability assessment of the High Plains regional aquifer. Results of the LHS simulations reveal significant prediction uncertainties that vary spatially across the regional aquifer. Additionally, the proposed method enables a spatial deconstruction of the prediction uncertainty that can lead to improved prediction of ground water vulnerability. ?? 2007 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2006.00298.x","issn":"0017467X","usgsCitation":"Gurdak, J., McCray, J., Thyne, G., and Qi, S., 2007, Latin hypercube approach to estimate uncertainty in ground water vulnerability: Ground Water, v. 45, no. 3, p. 348-361, https://doi.org/10.1111/j.1745-6584.2006.00298.x.","startPage":"348","endPage":"361","numberOfPages":"14","costCenters":[],"links":[{"id":213084,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2006.00298.x"},{"id":240673,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-03-20","publicationStatus":"PW","scienceBaseUri":"505a4580e4b0c8380cd6738a","contributors":{"authors":[{"text":"Gurdak, J.J.","contributorId":35119,"corporation":false,"usgs":true,"family":"Gurdak","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":423983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCray, J.E.","contributorId":31985,"corporation":false,"usgs":true,"family":"McCray","given":"J.E.","affiliations":[],"preferred":false,"id":423982,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thyne, G.","contributorId":20983,"corporation":false,"usgs":true,"family":"Thyne","given":"G.","affiliations":[],"preferred":false,"id":423981,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Qi, S.L.","contributorId":76140,"corporation":false,"usgs":true,"family":"Qi","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":423984,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030064,"text":"70030064 - 2007 - Spectroscopic evidence for uranium bearing precipitates in vadose zone sediments at the Hanford 300-area site","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70030064","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Spectroscopic evidence for uranium bearing precipitates in vadose zone sediments at the Hanford 300-area site","docAbstract":"Uranium (U) solid-state speciation in vadose zone sediments collected beneath the former North Process Pond (NPP) in the 300 Area of the Hanford site (Washington) was investigated using multi-scale techniques. In 30 day batch experiments, only a small fraction of total U (???7.4%) was released to artificial groundwater solutions equilibrated with 1% pCO2. Synchrotron-based micro-X-ray fluorescence spectroscopy analyses showed that U was distributed among at least two types of species: (i) U discrete grains associated with Cu and (ii) areas with intermediate U concentrations on grains and grain coatings. Metatorbernite (Cu[UO2]2[PO 4]2??8H2O) and uranophane (Ca[UO 2]2[SiO3(OH)]2?? 5H 2O) at some U discrete grains, and muscovite at U intermediate concentration areas, were identified in synchrotron-based micro-X-ray diffraction. Scanning electron microscopy/energy dispersive X-ray analyses revealed 8-10 ??m size metatorbernite particles that were embedded in C-, Al-, and Si-rich coatings on quartz and albite grains. In ??- and bulk-X-ray absorption structure (??-XAS and XAS) spectroscopy analyses, the structure of metatorbernite with additional U-C and U-U coordination environments was consistently observed at U discrete grains with high U concentrations. The consistency of the ??- and bulk-XAS analyses suggests that metatorbernite may comprise a significant fraction of the total U in the sample. The entrapped, micrometer-sized metatorbernite particles in C-, Al-, and Si-rich coatings, along with the more soluble precipitated uranyl carbonates and uranophane, likely control the long-term release of U to water associated with the vadose zone sediments. ?? 2007 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es062196u","issn":"0013936X","usgsCitation":"Arai, Y., Marcus, M., Tamura, N., Davis, J., and Zachara, J., 2007, Spectroscopic evidence for uranium bearing precipitates in vadose zone sediments at the Hanford 300-area site: Environmental Science & Technology, v. 41, no. 13, p. 4633-4639, https://doi.org/10.1021/es062196u.","startPage":"4633","endPage":"4639","numberOfPages":"7","costCenters":[],"links":[{"id":477240,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://www.escholarship.org/uc/item/3110h2bq","text":"External Repository"},{"id":240695,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213104,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es062196u"}],"volume":"41","issue":"13","noUsgsAuthors":false,"publicationDate":"2007-06-01","publicationStatus":"PW","scienceBaseUri":"505b95b1e4b08c986b31b06e","contributors":{"authors":[{"text":"Arai, Y.","contributorId":59214,"corporation":false,"usgs":true,"family":"Arai","given":"Y.","email":"","affiliations":[],"preferred":false,"id":425568,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Marcus, M.A.","contributorId":84966,"corporation":false,"usgs":true,"family":"Marcus","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":425570,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tamura, N.","contributorId":96092,"corporation":false,"usgs":true,"family":"Tamura","given":"N.","affiliations":[],"preferred":false,"id":425571,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Davis, J.A.","contributorId":71694,"corporation":false,"usgs":true,"family":"Davis","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":425569,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zachara, J.M.","contributorId":96896,"corporation":false,"usgs":true,"family":"Zachara","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":425572,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70029975,"text":"70029975 - 2007 - Year-class formation of upper St. Lawrence River northern pike","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029975","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Year-class formation of upper St. Lawrence River northern pike","docAbstract":"Variables associated with year-class formation in upper St. Lawrence River northern pike Esox lucius were examined to explore population trends. A partial least-squares (PLS) regression model (PLS 1) was used to relate a year-class strength index (YCSI; 1974-1997) to explanatory variables associated with spawning and nursery areas (seasonal water level and temperature and their variability, number of ice days, and last day of ice presence). A second model (PLS 2) incorporated four additional ecological variables: potential predators (abundance of double-crested cormorants Phalacrocorax auritus and yellow perch Perca flavescens), female northern pike biomass (as a measure of stock-recruitment effects), and total phosphorus (productivity). Trends in adult northern pike catch revealed a decline (1981-2005), and year-class strength was positively related to catch per unit effort (CPUE; R2 = 0.58). The YCSI exceeded the 23-year mean in only 2 of the last 10 years. Cyclic patterns in the YCSI time series (along with strong year-classes every 4-6 years) were apparent, as was a dampening effect of amplitude beginning around 1990. The PLS 1 model explained over 50% of variation in both explanatory variables and the dependent variable, YCSI first-order moving-average residuals. Variables retained (N = 10; Wold's statistic ??? 0.8) included negative YCSI associations with high summer water levels, high variability in spring and fall water levels, and variability in fall water temperature. The YCSI exhibited positive associations with high spring, summer, and fall water temperature, variability in spring temperature, and high winter and spring water level. The PLS 2 model led to positive YCSI associations with phosphorus and yellow perch CPUE and a negative correlation with double-crested cormorant abundance. Environmental variables (water level and temperature) are hypothesized to regulate northern pike YCSI cycles, and dampening in YCSI magnitude may be related to a combination of factors, including wetland habitat changes, reduced nutrient loading, and increased predation by double-crested cormorants. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M05-081.1","issn":"02755947","usgsCitation":"Smith, B., Farrell, J., Underwood, H., and Smith, S., 2007, Year-class formation of upper St. Lawrence River northern pike: North American Journal of Fisheries Management, v. 27, no. 2, p. 481-491, https://doi.org/10.1577/M05-081.1.","startPage":"481","endPage":"491","numberOfPages":"11","costCenters":[],"links":[{"id":212843,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-081.1"},{"id":240395,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-05-01","publicationStatus":"PW","scienceBaseUri":"505bd204e4b08c986b32f62c","contributors":{"authors":[{"text":"Smith, B.M.","contributorId":33926,"corporation":false,"usgs":true,"family":"Smith","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":425144,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farrell, J.M.","contributorId":54408,"corporation":false,"usgs":true,"family":"Farrell","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":425145,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Underwood, H.B. 0000-0002-2064-9128","orcid":"https://orcid.org/0000-0002-2064-9128","contributorId":90849,"corporation":false,"usgs":true,"family":"Underwood","given":"H.B.","affiliations":[],"preferred":false,"id":425146,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, S.J.","contributorId":23675,"corporation":false,"usgs":true,"family":"Smith","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":425143,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":80850,"text":"ofr20071168 - 2007 - Evaluating the potential for watershed restoration to reduce nutrient loading to Upper Klamath Lake, Oregon","interactions":[],"lastModifiedDate":"2016-04-20T17:32:49","indexId":"ofr20071168","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1168","title":"Evaluating the potential for watershed restoration to reduce nutrient loading to Upper Klamath Lake, Oregon","docAbstract":"<p>A literature review of best management practices to reduce nutrient loading was performed to provide information for resource managers in the Klamath Basin, Oregon. Although BMPs have already been implemented in the watershed, some sense of their effectiveness in reducing phosphorus loading and their cost for installation and maintenance is still lacking. This report discusses both causes of nutrient loading and a wide-variety of BMPs used to treat or reduce causal factors. We specifically focused on cattle grazing as the principal land-use and causal factor for nutrient loading in the Klamath Basin above Upper Klamath Lake, Oregon. Several BMP types, including stream corridor fencing, riparian buffer strips and constructed wetlands, seem to have potential for reducing phosphorus loading that may result from cattle grazing. However, no single BMP is likely to be the most effective in all locations or situations.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071168","usgsCitation":"McCormick, P.V., and Campbell, S.G., 2007, Evaluating the potential for watershed restoration to reduce nutrient loading to Upper Klamath Lake, Oregon: U.S. Geological Survey Open-File Report 2007-1168, v, 31 p., https://doi.org/10.3133/ofr20071168.","productDescription":"v, 31 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":120977,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_2007_1168.jpg"},{"id":320213,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1168/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Oregon","otherGeospatial":"Upper Klamath Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.09037780761719,\n              42.23360155663695\n            ],\n            [\n              -122.09037780761719,\n              42.500453028125584\n            ],\n            [\n              -121.80335998535158,\n              42.500453028125584\n            ],\n            [\n              -121.80335998535158,\n              42.23360155663695\n            ],\n            [\n              -122.09037780761719,\n              42.23360155663695\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688bcd","contributors":{"authors":[{"text":"McCormick, Paul V.","contributorId":92756,"corporation":false,"usgs":true,"family":"McCormick","given":"Paul","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":293690,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Campbell, Sharon G.","contributorId":23173,"corporation":false,"usgs":true,"family":"Campbell","given":"Sharon","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":293689,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70029998,"text":"70029998 - 2007 - Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders","interactions":[],"lastModifiedDate":"2018-05-13T12:34:44","indexId":"70029998","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":"Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders","docAbstract":"<p><span>We coupled intensive population monitoring with collection of blood samples from 383 nesting Pacific common eiders (</span><i>Somateria mollisima v-nigrum</i><span>) at two locations in Alaska (USA) from 2002 to 2004. We investigated annual, geographic, and within-season variation in blood concentrations of lead and selenium; compared exposure patterns with sympatrically nesting spectacled eiders (</span><i>Somateria fischeri</i><span>); and examined relationships with clutch size, egg viability, probability of hatching, and apparent survival of adult females. Lead concentrations were elevated in 3.6% of females, and all individuals exhibited elevated selenium, most (81%) at concentrations associated with death in captive waterfowl. Blood lead and selenium concentrations varied both within and among site-years and were lower than those of spectacled eiders. During incubation, blood lead concentrations in females increased significantly (possibly via re-release of stored lead from bone), whereas selenium concentrations decreased (likely because of natural excretion). Probability of a nest containing at least one nonviable egg was positively related to blood selenium in hens, but adverse effects in other life-history variables were not supported. Although reproduction appeared to be sensitive to selenium toxicity, our data suggest that high rates of nonviability are unlikely in this population and that selenium-related reductions to clutch size would be inconsequential at the scale of overall population dynamics. We conclude that Pacific common eiders and other wild marine birds likely have higher selenium tolerances than freshwater species and that interspecific differences in exposure levels may reflect differences in reproductive strategies.</span></p>","language":"English","publisher":"Wiley","doi":"10.1897/06-537R.1","issn":"07307268","usgsCitation":"Wilson, H., Flint, P.L., and Powell, A., 2007, Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders: Environmental Toxicology and Chemistry, v. 26, no. 7, p. 1410-1417, https://doi.org/10.1897/06-537R.1.","productDescription":"8 p.","startPage":"1410","endPage":"1417","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":240187,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212665,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-537R.1"}],"volume":"26","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-07-01","publicationStatus":"PW","scienceBaseUri":"5059fc8ce4b0c8380cd4e2ee","contributors":{"authors":[{"text":"Wilson, H.M.","contributorId":37306,"corporation":false,"usgs":true,"family":"Wilson","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":425229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":425230,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powell, A.N.","contributorId":66194,"corporation":false,"usgs":true,"family":"Powell","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":425231,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030003,"text":"70030003 - 2007 - The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana","interactions":[],"lastModifiedDate":"2015-12-16T07:30:49","indexId":"70030003","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2900,"text":"Northwest Science","onlineIssn":"2161-9859","printIssn":"0029-344X","active":true,"publicationSubtype":{"id":10}},"title":"The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana","docAbstract":"<p>We evaluated the relationship between natural vegetative disturbance and changes in stream habitat and macroinvertebrate metrics within 33 randomly selected minimally managed watersheds in central Idaho and western Montana. Changes in stream reach conditions were related to vegetative disturbance for the time periods from 1985 to 1993 and 1993 to 2000, respectively, at the following three spatial scales; within the stream buffer and less than 1 km from the evaluated reach, within the watershed and within 1 km of the stream reach, and within the watershed. Data for stream reaches were based on field surveys and vegetative disturbance was generated for the watershed above the sampled reach using remotely sensed data and geographical information systems. Large scale (&gt;100 ha) vegetative disturbance was common within the study area. Even though natural vegetative disturbance rates were high, we found that few of the measured attributes were related to the magnitude of vegetative disturbance. The three physical habitat attributes that changed significantly were sinuosity, median particle size, and percentage of undercut bank; each was related to the disturbance in the earlier (1985-1993) time frame. There was a significant relationship between changes in two macroinvertebrate metrics, abundance and percent collectors/filterers, and the magnitude of disturbance during the more recent time period (1993-2000). We did not find a consistent relationship between the location of the disturbance within the watershed and changes in stream conditions. Our findings suggest that natural vegetative disturbance within the northern Rocky Mountains is complex but likely does not result in substantial short-term changes in the characteristics of most stream reaches. ?? 2007 by the Northwest Scientific Association. All rights reserved.</p>","language":"English","publisher":"Northwest Scientific Association","doi":"10.3955/0029-344X-81.3.224","issn":"0029344X","usgsCitation":"Roper, B., Jarvis, B., and Kershner, J.L., 2007, The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana: Northwest Science, v. 81, no. 3, p. 224-238, https://doi.org/10.3955/0029-344X-81.3.224.","productDescription":"15 p.","startPage":"224","endPage":"238","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":240255,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Montana","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -115.57617187499999,\n              44.134913443750726\n            ],\n            [\n              -115.57617187499999,\n              46.63435070293566\n            ],\n            [\n              -111.97265625,\n              46.63435070293566\n            ],\n            [\n              -111.97265625,\n              44.134913443750726\n            ],\n            [\n              -115.57617187499999,\n              44.134913443750726\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"81","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf88e4b08c986b324883","contributors":{"authors":[{"text":"Roper, B.B.","contributorId":65280,"corporation":false,"usgs":true,"family":"Roper","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":425246,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jarvis, B.","contributorId":69785,"corporation":false,"usgs":true,"family":"Jarvis","given":"B.","email":"","affiliations":[],"preferred":false,"id":425247,"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":425248,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029890,"text":"70029890 - 2007 - Probabilistic seismic demand analysis using advanced ground motion intensity measures","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70029890","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1434,"text":"Earthquake Engineering and Structural Dynamics","active":true,"publicationSubtype":{"id":10}},"title":"Probabilistic seismic demand analysis using advanced ground motion intensity measures","docAbstract":"One of the objectives in performance-based earthquake engineering is to quantify the seismic reliability of a structure at a site. For that purpose, probabilistic seismic demand analysis (PSDA) is used as a tool to estimate the mean annual frequency of exceeding a specified value of a structural demand parameter (e.g. interstorey drift). This paper compares and contrasts the use, in PSDA, of certain advanced scalar versus vector and conventional scalar ground motion intensity measures (IMs). One of the benefits of using a well-chosen IM is that more accurate evaluations of seismic performance are achieved without the need to perform detailed ground motion record selection for the nonlinear dynamic structural analyses involved in PSDA (e.g. record selection with respect to seismic parameters such as earthquake magnitude, source-to-site distance, and ground motion epsilon). For structural demands that are dominated by a first mode of vibration, using inelastic spectral displacement (Sdi) can be advantageous relative to the conventionally used elastic spectral acceleration (Sa) and the vector IM consisting of Sa and epsilon (??). This paper demonstrates that this is true for ordinary and for near-source pulse-like earthquake records. The latter ground motions cannot be adequately characterized by either Sa alone or the vector of Sa and ??. For structural demands with significant higher-mode contributions (under either of the two types of ground motions), even Sdi (alone) is not sufficient, so an advanced scalar IM that additionally incorporates higher modes is used.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earthquake Engineering and Structural Dynamics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/eqe.696","issn":"00988847","usgsCitation":"Tothong, P., and Luco, N., 2007, Probabilistic seismic demand analysis using advanced ground motion intensity measures: Earthquake Engineering and Structural Dynamics, v. 36, no. 13, p. 1837-1860, https://doi.org/10.1002/eqe.696.","startPage":"1837","endPage":"1860","numberOfPages":"24","costCenters":[],"links":[{"id":213038,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/eqe.696"},{"id":240618,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"13","noUsgsAuthors":false,"publicationDate":"2007-06-11","publicationStatus":"PW","scienceBaseUri":"505a8c98e4b0c8380cd7e796","contributors":{"authors":[{"text":"Tothong, P.","contributorId":107503,"corporation":false,"usgs":true,"family":"Tothong","given":"P.","email":"","affiliations":[],"preferred":false,"id":424748,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luco, N.","contributorId":34240,"corporation":false,"usgs":true,"family":"Luco","given":"N.","email":"","affiliations":[],"preferred":false,"id":424747,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030057,"text":"70030057 - 2007 - A closer look at water-related geologic activity on Mars","interactions":[],"lastModifiedDate":"2018-12-07T16:16:30","indexId":"70030057","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"A closer look at water-related geologic activity on Mars","docAbstract":"<p><span>Water has supposedly marked the surface of Mars and produced characteristic landforms. To understand the history of water on Mars, we take a close look at key locations with the High-Resolution Imaging Science Experiment on board the Mars Reconnaissance Orbiter, reaching fine spatial scales of 25 to 32 centimeters per pixel. Boulders ranging up to ∼2 meters in diameter are ubiquitous in the middle to high latitudes, which include deposits previously interpreted as finegrained ocean sediments or dusty snow. Bright gully deposits identify six locations with very recent activity, but these lie on steep (20° to 35°) slopes where dry mass wasting could occur. Thus, we cannot confirm the reality of ancient oceans or water in active gullies but do see evidence of fluvial modification of geologically recent mid-latitude gullies and equatorial impact craters.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Association for the Advancement of Science (AAAS)","doi":"10.1126/science.1143987","issn":"00368075","usgsCitation":"McEwen, A.S., Hansen, C., Delamere, W., Eliason, E.M., Herkenhoff, K.E., Keszthelyi, L., Gulick, V.C., Kirk, R.L., Mellon, M.T., Grant, J.A., Thomas, N., Weitz, C., Squyres, S.W., Bridges, N., Murchie, S., Seelos, F., Seelos, K., Okubo, C., Milazzo, M., Tornabene, L., Jaeger, W., Byrne, S., Russell, P., Griffes, J., Martinez-Alonso, S., Davatzes, A., Chuang, F.C., Thomson, B., Fishbaugh, K., Dundas, C.M., Kolb, K., Banks, M.E., and Wray, J., 2007, A closer look at water-related geologic activity on Mars: Science, v. 317, no. 5845, p. 1706-1709, https://doi.org/10.1126/science.1143987.","productDescription":"4 p.","startPage":"1706","endPage":"1709","numberOfPages":"4","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":240595,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"317","issue":"5845","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e346e4b0c8380cd45f21","contributors":{"authors":[{"text":"McEwen, Alfred S.","contributorId":61657,"corporation":false,"usgs":false,"family":"McEwen","given":"Alfred","email":"","middleInitial":"S.","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":425502,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, C.J.","contributorId":72530,"corporation":false,"usgs":true,"family":"Hansen","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":425518,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Delamere, W.A.","contributorId":57665,"corporation":false,"usgs":true,"family":"Delamere","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":425512,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eliason, E. M.","contributorId":93113,"corporation":false,"usgs":true,"family":"Eliason","given":"E.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425523,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"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":425513,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Keszthelyi, Laszlo P. 0000-0003-1879-4331 laz@usgs.gov","orcid":"https://orcid.org/0000-0003-1879-4331","contributorId":52802,"corporation":false,"usgs":true,"family":"Keszthelyi","given":"Laszlo P.","email":"laz@usgs.gov","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":425510,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gulick, V. C.","contributorId":47545,"corporation":false,"usgs":true,"family":"Gulick","given":"V.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425511,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":425524,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Mellon, M. T.","contributorId":82833,"corporation":false,"usgs":false,"family":"Mellon","given":"M.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":425519,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Grant, J. A.","contributorId":28334,"corporation":false,"usgs":true,"family":"Grant","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425506,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Thomas, N.","contributorId":72490,"corporation":false,"usgs":true,"family":"Thomas","given":"N.","email":"","affiliations":[],"preferred":false,"id":425517,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Weitz, C.M.","contributorId":8649,"corporation":false,"usgs":true,"family":"Weitz","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":425500,"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":425507,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Bridges, N.T.","contributorId":23673,"corporation":false,"usgs":true,"family":"Bridges","given":"N.T.","email":"","affiliations":[],"preferred":false,"id":425504,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Murchie, S.L.","contributorId":7369,"corporation":false,"usgs":true,"family":"Murchie","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":425499,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Seelos, F.","contributorId":34635,"corporation":false,"usgs":true,"family":"Seelos","given":"F.","affiliations":[],"preferred":false,"id":425509,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Seelos, K.","contributorId":96813,"corporation":false,"usgs":true,"family":"Seelos","given":"K.","email":"","affiliations":[],"preferred":false,"id":425525,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Okubo, C.H.","contributorId":85703,"corporation":false,"usgs":true,"family":"Okubo","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":425521,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Milazzo, M.P.","contributorId":8983,"corporation":false,"usgs":true,"family":"Milazzo","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":425501,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Tornabene, L.L.","contributorId":99679,"corporation":false,"usgs":true,"family":"Tornabene","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":425526,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Jaeger, W.L.","contributorId":59171,"corporation":false,"usgs":true,"family":"Jaeger","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":425514,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Byrne, S.","contributorId":105083,"corporation":false,"usgs":true,"family":"Byrne","given":"S.","email":"","affiliations":[],"preferred":false,"id":425530,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Russell, P.S.","contributorId":100987,"corporation":false,"usgs":true,"family":"Russell","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":425527,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Griffes, J.L.","contributorId":18982,"corporation":false,"usgs":true,"family":"Griffes","given":"J.L.","affiliations":[],"preferred":false,"id":425503,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Martinez-Alonso, S.","contributorId":66915,"corporation":false,"usgs":true,"family":"Martinez-Alonso","given":"S.","affiliations":[],"preferred":false,"id":425515,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Davatzes, A.","contributorId":31984,"corporation":false,"usgs":true,"family":"Davatzes","given":"A.","email":"","affiliations":[],"preferred":false,"id":425508,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Chuang, F. C.","contributorId":105452,"corporation":false,"usgs":false,"family":"Chuang","given":"F.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425531,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Thomson, B.J.","contributorId":90936,"corporation":false,"usgs":true,"family":"Thomson","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":425522,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Fishbaugh, K.E.","contributorId":102692,"corporation":false,"usgs":true,"family":"Fishbaugh","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":425528,"contributorType":{"id":1,"text":"Authors"},"rank":29},{"text":"Dundas, C. M.","contributorId":83249,"corporation":false,"usgs":false,"family":"Dundas","given":"C.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425520,"contributorType":{"id":1,"text":"Authors"},"rank":30},{"text":"Kolb, K.J.","contributorId":69366,"corporation":false,"usgs":true,"family":"Kolb","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":425516,"contributorType":{"id":1,"text":"Authors"},"rank":31},{"text":"Banks, M. E.","contributorId":103476,"corporation":false,"usgs":true,"family":"Banks","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":425529,"contributorType":{"id":1,"text":"Authors"},"rank":32},{"text":"Wray, J.J.","contributorId":26049,"corporation":false,"usgs":true,"family":"Wray","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":425505,"contributorType":{"id":1,"text":"Authors"},"rank":33}]}}
,{"id":70030079,"text":"70030079 - 2007 - The influence of river regulation and land use on floodplain forest regeneration in the semi-arid upper Colorado River Basin, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70030079","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"The influence of river regulation and land use on floodplain forest regeneration in the semi-arid upper Colorado River Basin, USA","docAbstract":"Flow regulation effects on floodplain forests in the semi-arid western United States are moderately well understood, whereas effects associated with changes in floodplain land use are poorly documented. We mapped land cover patterns from recent aerial photos and applied a classification scheme to mainstem alluvial floodplains in 10 subjectively selected 4th order hydrologic units (subbasins) in the Upper Colorado River Basin (UCRB) in order to document land use patterns (floodplain development) and assess their effects on Fremont cottonwood forest (CF) regeneration. Three of the mainstem rivers were unregulated, five were moderately regulated and two were highly regulated. We classified polygons as Undeveloped (with two categories, including CF) and Developed (with five categories). We ground-truthed 501 randomly selected polygons (4-28% of the floodplain area in each subbasin) to verify classification accuracy and to search for cottonwood regeneration, defined as stands established since regulation began or 1950, whichever is most recent. From 40% to 95% of the floodplain area remained undeveloped, but only 19-70% of the floodplain area was classified as forest. Regeneration occupied a mean of 5% (range 1-17%) of the floodplain. The likelihood of the presence of regeneration in a polygon was reduced 65% by development and independently in a complex manner by flow regulation. Our analyses indicate that floodplain forests may be in jeopardy on both regulated and unregulated rivers and that information on historical forest extent is needed to better understand their current status in the UCRB. Conservation efforts need to be coordinated at a regional level and address the potentially adverse affects of both flow regulation and floodplain development.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1007","issn":"15351459","usgsCitation":"Northcott, K., Andersen, D., and Cooper, D., 2007, The influence of river regulation and land use on floodplain forest regeneration in the semi-arid upper Colorado River Basin, USA: River Research and Applications, v. 23, no. 6, p. 565-577, https://doi.org/10.1002/rra.1007.","startPage":"565","endPage":"577","numberOfPages":"13","costCenters":[],"links":[{"id":212876,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1007"},{"id":240435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-03-09","publicationStatus":"PW","scienceBaseUri":"505bad35e4b08c986b323a66","contributors":{"authors":[{"text":"Northcott, K.","contributorId":89717,"corporation":false,"usgs":true,"family":"Northcott","given":"K.","email":"","affiliations":[],"preferred":false,"id":425623,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andersen, D.C.","contributorId":19119,"corporation":false,"usgs":true,"family":"Andersen","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":425621,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cooper, D.J.","contributorId":89489,"corporation":false,"usgs":true,"family":"Cooper","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":425622,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029964,"text":"70029964 - 2007 - Mountaintop island age determines species richness of boreal mammals in the American Southwest","interactions":[],"lastModifiedDate":"2017-03-10T15:08:10","indexId":"70029964","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1445,"text":"Ecography","active":true,"publicationSubtype":{"id":10}},"title":"Mountaintop island age determines species richness of boreal mammals in the American Southwest","docAbstract":"<p><span>Models that describe the mechanisms responsible for insular patterns of species richness include the equilibrium theory of island biogeography and the nonequilibrium vicariance model. The relative importance of dispersal or vicariance in structuring insular distribution patterns can be inferred from these models. Predictions of the alternative models were tested for boreal mammals in the American Southwest. Age of mountaintop islands of boreal habitat was determined by constructing a geographic cladogram based on characteristics of intervening valley barriers. Other independent variables included area and isolation of mountaintop islands. Island age was the most important predictor of species richness. In contrast with previous studies of species richness patterns in this system, these results supported the nonequilibrium vicariance model, which indicates that vicariance has been the primary determinant of species distribution patterns in this system.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.0906-7590.2007.04721.x","issn":"09067590","usgsCitation":"Frey, J., Bogan, M., and Yates, T.L., 2007, Mountaintop island age determines species richness of boreal mammals in the American Southwest: Ecography, v. 30, no. 2, p. 231-240, https://doi.org/10.1111/j.0906-7590.2007.04721.x.","productDescription":"16 p.","startPage":"231","endPage":"240","costCenters":[],"links":[{"id":240216,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-11-06","publicationStatus":"PW","scienceBaseUri":"505a5ebee4b0c8380cd70c48","contributors":{"authors":[{"text":"Frey, J.K.","contributorId":83068,"corporation":false,"usgs":true,"family":"Frey","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":425089,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bogan, M.A.","contributorId":17939,"corporation":false,"usgs":true,"family":"Bogan","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":425088,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yates, Terry L.","contributorId":87489,"corporation":false,"usgs":false,"family":"Yates","given":"Terry","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":425090,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029707,"text":"70029707 - 2007 - PVTx properties of the CO<sub>2</sub>-H<sub>2</sub>O and CO<sub>2</sub>-H<sub>2</sub>O-NaCl systems below 647 K: assessment of experimental data and thermodynamic models","interactions":[],"lastModifiedDate":"2015-04-13T10:38:13","indexId":"70029707","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"PVTx properties of the CO<sub>2</sub>-H<sub>2</sub>O and CO<sub>2</sub>-H<sub>2</sub>O-NaCl systems below 647 K: assessment of experimental data and thermodynamic models","docAbstract":"<p><span>Evaluation of CO</span><sub>2</sub><span>&nbsp;sequestration in formation brine or in seawater needs highly accurate experimental data or models of pressure&ndash;volume&ndash;temperature-composition (</span><i>PVTx</i><span>) properties for the CO</span><sub>2</sub><span>&ndash;H</span><sub>2</sub><span>O and CO</span><sub>2</sub><span>&ndash;H</span><sub>2</sub><span>O&ndash;NaCl systems. This paper presents a comprehensive review of the experimental&nbsp;</span><i>PVTx</i><span>&nbsp;properties and the thermodynamic models of these two systems. The following conclusions are drawn from the review: (1) About two-thirds of experimental data are consistent with each other, where the uncertainty in liquid volumes is within 0.5%, and that in gas volumes within 2%. However, this accuracy is not sufficient for assessing CO</span><sub>2</sub><span>&nbsp;sequestration. Among the data sets for liquids, only a few are available for accurate modeling of CO</span><sub>2</sub><span>&nbsp;sequestration. These data have an error of about 0.1% on average, roughly covering from 273 to 642&nbsp;K and from 1 to 35&nbsp;MPa; (2) There is a shortage of volumetric data of saturated vapor phase. (3) There are only a few data sets for the ternary liquids, and they are inconsistent with each other, where only a couple of data sets can be used to test a predictive density model for CO</span><sub>2</sub><span>&nbsp;sequestration; (4) Although there are a few models with accuracy close to that of experiments, none of them is accurate enough for CO</span><sub>2</sub><span>&nbsp;sequestration modeling, which normally needs an accuracy of density better than 0.1%. Some calculations are made available on&nbsp;</span><span id=\"\" class=\"interref\" data-locatortype=\"url\" data-locatorkey=\"http://www.geochem-model.org\"><a class=\"cExLink\" href=\"http://www.geochem-model.org/\" target=\"externObjLink\" data-url=\"/science/RedirectURL?_method=externObjLink&amp;_locator=url&amp;_cdi=271727&amp;_issn=00092541&amp;_origin=article&amp;_zone=art_page&amp;_targetURL=http%253A%252F%252Fwww.geochem-model.org\" data-itrprs=\"Y\">www.geochem-model.org</a></span><span>.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.chemgeo.2006.11.011","issn":"00092541","usgsCitation":"Hu, J., Duan, Z., Zhu, C., and Chou, I., 2007, PVTx properties of the CO<sub>2</sub>-H<sub>2</sub>O and CO<sub>2</sub>-H<sub>2</sub>O-NaCl systems below 647 K: assessment of experimental data and thermodynamic models: Chemical Geology, v. 238, no. 3-4, p. 249-267, https://doi.org/10.1016/j.chemgeo.2006.11.011.","productDescription":"19 p.","startPage":"249","endPage":"267","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":240513,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212944,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2006.11.011"}],"volume":"238","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7387e4b0c8380cd770ca","contributors":{"authors":[{"text":"Hu, Jiawen","contributorId":41630,"corporation":false,"usgs":true,"family":"Hu","given":"Jiawen","email":"","affiliations":[],"preferred":false,"id":423939,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duan, Zhenhao","contributorId":71302,"corporation":false,"usgs":true,"family":"Duan","given":"Zhenhao","email":"","affiliations":[],"preferred":false,"id":423941,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhu, Chen","contributorId":6244,"corporation":false,"usgs":true,"family":"Zhu","given":"Chen","email":"","affiliations":[],"preferred":false,"id":423938,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chou, I.-M. 0000-0001-5233-6479","orcid":"https://orcid.org/0000-0001-5233-6479","contributorId":44283,"corporation":false,"usgs":true,"family":"Chou","given":"I.-M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":423940,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030074,"text":"70030074 - 2007 - Bioenergetic and pharmacokinetic model for exposure of common loon (Gavia immer) chicks to methylmercury","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70030074","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":"Bioenergetic and pharmacokinetic model for exposure of common loon (Gavia immer) chicks to methylmercury","docAbstract":"A bioenergetics model was used to predict food intake of common loon (Gavia immer) chicks as a function of body mass during development, and a pharmacokinetics model, based on first-order kinetics in a single compartment, was used to predict blood Hg level as a function of food intake rate, food Hg content, body mass, and Hg absorption and elimination. Predictions were tested in captive growing chicks fed trout (Salmo gairdneri) with average MeHg concentrations of 0.02 (control), 0.4, and 1.2 ??g/g wet mass (delivered as CH3HgCl). Predicted food intake matched observed intake through 50 d of age but then exceeded observed intake by an amount that grew progressively larger with age, reaching a significant overestimate of 28% by the end of the trial. Respiration in older, nongrowing birds probably was overestimated by using rates measured in younger, growing birds. Close agreement was found between simulations and measured blood Hg, which varied significantly with dietary Hg and age. Although chicks may hatch with different blood Hg levels, their blood level is determined mainly by dietary Hg level beyond approximately two weeks of age. The model also may be useful for predicting Hg levels in adults and in the eggs that they lay, but its accuracy in both chicks and adults needs to be tested in free-living birds. ?? 2007 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/06-262.1","issn":"07307268","usgsCitation":"Karasov, W.H., Kenow, K., Meyer, M., and Fournier, F., 2007, Bioenergetic and pharmacokinetic model for exposure of common loon (Gavia immer) chicks to methylmercury: Environmental Toxicology and Chemistry, v. 26, no. 4, p. 677-685, https://doi.org/10.1897/06-262.1.","startPage":"677","endPage":"685","numberOfPages":"9","costCenters":[],"links":[{"id":212791,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-262.1"},{"id":240331,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-04-01","publicationStatus":"PW","scienceBaseUri":"5059f14ce4b0c8380cd4ab81","contributors":{"authors":[{"text":"Karasov, W. H.","contributorId":25889,"corporation":false,"usgs":false,"family":"Karasov","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425609,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kenow, K.P.","contributorId":18302,"corporation":false,"usgs":true,"family":"Kenow","given":"K.P.","affiliations":[],"preferred":false,"id":425608,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, M.W.","contributorId":38094,"corporation":false,"usgs":true,"family":"Meyer","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":425610,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fournier, F.","contributorId":57001,"corporation":false,"usgs":true,"family":"Fournier","given":"F.","email":"","affiliations":[],"preferred":false,"id":425611,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029879,"text":"70029879 - 2007 - A new species of Pentadinium from Eastern Anatolia, Turkey, Pentadinium galileoi","interactions":[],"lastModifiedDate":"2020-03-27T06:46:14","indexId":"70029879","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"A new species of Pentadinium from Eastern Anatolia, Turkey, Pentadinium galileoi","docAbstract":"The new gonyaulacoid dinoflagellate Pentadinium galileoi Sancay et al., sp. nov. from the Oligocene-Lower Miocene sediments of Eastern Anatolia has been identified. It is spherical, chordate with prominant discoidal cingulum and distally furcate apical, sulcal, and antapical processes. It has a type P(3???) archeopyle, and periarcheopyle is larger than endoarcheopyle. Tabulation is distinct and it has a formula of 1pr, 3-4',6???,6c,6???', 1p,1??????, Wall structure is granular in intraplate areas, and it has gonal spines at apex, posterior intercalary, and antapex. Processes at gonal positions may be on a variably developed antapical 'skirt' formed by extended septa (2-3 ??m), minute bifurcate spines intergonally and along cingulum at plate intersections. Periphragm and endophragm appressed except at cingular area and at septa. The size of the cysts ranges between 73-89??m with an avarage of 84??m.","language":"English","publisher":"GeoScienceWorld","doi":"10.2113/gsmicropal.52.6.537","issn":"00262803","usgsCitation":"Sancay, R., Bati, Z., Edwards, L.E., and Ertug, K., 2007, A new species of Pentadinium from Eastern Anatolia, Turkey, Pentadinium galileoi: Micropaleontology, v. 52, no. 6, p. 537-543, https://doi.org/10.2113/gsmicropal.52.6.537.","productDescription":"7 p.","startPage":"537","endPage":"543","numberOfPages":"7","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":240455,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Turkey","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[36.91313,41.33536],[38.34766,40.94859],[39.51261,41.10276],[40.37343,41.01367],[41.55408,41.53566],[42.61955,41.58317],[43.58275,41.09214],[43.75266,40.7402],[43.65644,40.25356],[44.40001,40.005],[44.79399,39.713],[44.10923,39.42814],[44.4214,38.28128],[44.22576,37.97158],[44.7727,37.17044],[44.29345,37.00151],[43.94226,37.25623],[42.77913,37.38526],[42.34959,37.22987],[41.21209,37.07435],[40.67326,37.09128],[39.52258,36.71605],[38.69989,36.71293],[38.16773,36.90121],[37.06676,36.62304],[36.73949,36.81752],[36.68539,36.2597],[36.41755,36.04062],[36.14976,35.82153],[35.78208,36.275],[36.16082,36.65061],[35.55094,36.56544],[34.71455,36.79553],[34.02689,36.21996],[32.50916,36.10756],[31.6996,36.64428],[30.62162,36.67786],[30.3911,36.26298],[29.69998,36.14436],[28.7329,36.67683],[27.64119,36.65882],[27.04877,37.65336],[26.31822,38.20813],[26.8047,38.98576],[26.17079,39.46361],[27.28002,40.42001],[28.81998,40.46001],[29.24,41.21999],[31.14593,41.08762],[32.34798,41.73626],[33.51328,42.01896],[35.1677,42.04022],[36.91313,41.33536]]],[[[27.19238,40.69057],[26.35801,40.15199],[26.04335,40.61775],[26.05694,40.82412],[26.2946,40.93626],[26.6042,41.56211],[26.11704,41.8269],[27.13574,42.14148],[27.99672,42.00736],[28.11552,41.62289],[28.98844,41.29993],[28.80644,41.05496],[27.61902,40.99982],[27.19238,40.69057]]]]},\"properties\":{\"name\":\"Turkey\"}}]}","volume":"52","issue":"6","noUsgsAuthors":false,"publicationDate":"2009-06-03","publicationStatus":"PW","scienceBaseUri":"5059e4b3e4b0c8380cd46861","contributors":{"authors":[{"text":"Sancay, R.H.","contributorId":63624,"corporation":false,"usgs":true,"family":"Sancay","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":424709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bati, Z.","contributorId":98951,"corporation":false,"usgs":true,"family":"Bati","given":"Z.","email":"","affiliations":[],"preferred":false,"id":424711,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Edwards, Lucy E. 0000-0003-4075-3317 leedward@usgs.gov","orcid":"https://orcid.org/0000-0003-4075-3317","contributorId":2647,"corporation":false,"usgs":true,"family":"Edwards","given":"Lucy","email":"leedward@usgs.gov","middleInitial":"E.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":424708,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ertug, K.I.","contributorId":94505,"corporation":false,"usgs":true,"family":"Ertug","given":"K.I.","email":"","affiliations":[],"preferred":false,"id":424710,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030077,"text":"70030077 - 2007 - Zaphrentis and the Zaphrentidae (Devonian; anthozoa, rugosa)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70030077","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1142,"text":"Bulletins of American Paleontology","active":true,"publicationSubtype":{"id":10}},"title":"Zaphrentis and the Zaphrentidae (Devonian; anthozoa, rugosa)","docAbstract":"Zaphrentis is one of the most widely used names in Paleozoic coral paleontology. Species of \"Zaphrentis\" have been named from every Paleozoic System except the Cambrian. Variants of the word, such as zaphrentoid, are widely used with varied meanings. Nomenclatural spinoffs are numerous: Neozaphrentis and Heterophrentis are obvious examples, but dozens of additional genera have type species that were originally described in Zaphrentis. Many paleontologists are familiar with the word but few really know what it means. Zaphrentis (as a subgenus) and five new species were named in 1820, based on corals from the Falls of the Ohio River between Louisville, Kentucky, and Clarksville, Indiana. Descriptions were minimal, none was illustrated, and no specimens were preserved as types. Nominal species of \"Zaphrentis\" proliferated for over 100 years before a redescription based on Falls specimens was published (1938), the probable source beds recognized (1942), a neotype selected (1965) and adequately described and illustrated (1981). At this time, I recognize only four zaphrentid genera: Zaphrentis (middle Eifelian), Heliophyllum (middle Emsian through Givetian), Aemulophyllum (middle Emsian), and Cyathocylindrium (lower Emsian?; middle Emsian through Eifelian). All four genera seem to have originated in the Eastern Americas Biogeographic Realm. Heliophyllum is the most common, has the longest stratigraphic range, and is the only one known to occur outside of its area of origin. Heliophyllum modicum n. sp., once discussed as a possible Zaphrentis, is described and compared with both the type species of Zaphrentis and other Heliophyllum species. A single coral specimen from the Indian Cove Formation (upper Pragian or lower Emsian), Gaspe??, Quebec, is considered the earliest known zaphrentid and is described as Cyathocylindrium? n. sp.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletins of American Paleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00075779","usgsCitation":"Oliver, W.A., 2007, Zaphrentis and the Zaphrentidae (Devonian; anthozoa, rugosa): Bulletins of American Paleontology, v. 2007, no. 372-373, p. 5-24.","startPage":"5","endPage":"24","numberOfPages":"20","costCenters":[],"links":[{"id":240402,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2007","issue":"372-373","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd258e4b08c986b32f76e","contributors":{"authors":[{"text":"Oliver, W. A. Jr.","contributorId":21619,"corporation":false,"usgs":true,"family":"Oliver","given":"W.","suffix":"Jr.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425619,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70029981,"text":"70029981 - 2007 - Effect of horseshoe crab spawning density on nest disturbance and exhumation of eggs: A simulation study","interactions":[],"lastModifiedDate":"2021-05-27T17:25:53.910872","indexId":"70029981","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1584,"text":"Estuaries and Coasts","active":true,"publicationSubtype":{"id":10}},"title":"Effect of horseshoe crab spawning density on nest disturbance and exhumation of eggs: A simulation study","docAbstract":"<p>Because the Delaware Bay horseshoe crab (<i>Limulus polyphemus</i>) population is managed to provide for dependent species, such as migratory shorebirds, there is a need to understand the process of egg exhumation and to predict eggs available to foraging shorebirds. A simple spatial model was used to simulate horseshoe crab spawning that would occur on a typical Delaware Bay beach during spring tide cycles to quantify density-dependent nest disturbance. At least 20% of nests and eggs were disturbed for levels of spawning greater than one third of the average density in Delaware Bay during 2004. Nest disturbance increased approximately linearly as spawning density increased from one half to twice the 2004 level. As spawning density increased further, the percentage of eggs that were disturbed reached an asymptote of 70% for densities up to 10 times the density in 2004. Nest disturbance was heaviest in the mid beach zone. Nest disturbance precedes entrainment and begins the process of exhumation of eggs to surface sediments. Model predictions were combined with observations from egg surveys to estimate a snap-shot exhumation rate of 5-9% of disturbed eggs. Because an unknown quantity of eggs were exhumed and removed from the beach prior to the survey, cumulative exhumation rate was likely to have been higher than the snap-shot estimate. Because egg exhumation is density-dependent, in addition to managing for a high population size, identification and conservation of beaches where spawning horseshoe crabs concentrate in high densities (i.e., hot spots) are important steps toward providing a reliable food supply for migratory shorebirds.&nbsp;</p>","language":"English","publisher":"SpringerLink","doi":"10.1007/BF02700171","usgsCitation":"Smith, D., 2007, Effect of horseshoe crab spawning density on nest disturbance and exhumation of eggs: A simulation study: Estuaries and Coasts, v. 30, no. 2, p. 287-295, https://doi.org/10.1007/BF02700171.","productDescription":"9 p.","startPage":"287","endPage":"295","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":240496,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Delaware","otherGeospatial":"Delaware Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.35522460937499,\n              38.976492485539396\n            ],\n            [\n              -75.2398681640625,\n              38.852542390364235\n            ],\n            [\n              -74.970703125,\n              38.843986129756615\n            ],\n            [\n              -75.0421142578125,\n              39.0831721934762\n            ],\n            [\n              -75.1849365234375,\n              39.18117526158749\n            ],\n            [\n              -75.4156494140625,\n              39.142842478062505\n            ],\n            [\n              -75.35522460937499,\n              38.976492485539396\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"30","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a05e9e4b0c8380cd5100b","contributors":{"authors":[{"text":"Smith, D. R. 0000-0001-6074-9257","orcid":"https://orcid.org/0000-0001-6074-9257","contributorId":44108,"corporation":false,"usgs":true,"family":"Smith","given":"D. R.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":425168,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70029701,"text":"70029701 - 2007 - Hierarchical spatiotemporal matrix models for characterizing invasions","interactions":[],"lastModifiedDate":"2013-02-23T08:47:12","indexId":"70029701","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1039,"text":"Biometrics","active":true,"publicationSubtype":{"id":10}},"title":"Hierarchical spatiotemporal matrix models for characterizing invasions","docAbstract":"The growth and dispersal of biotic organisms is an important subject in ecology. Ecologists are able to accurately describe survival and fecundity in plant and animal populations and have developed quantitative approaches to study the dynamics of dispersal and population size. Of particular interest are the dynamics of invasive species. Such nonindigenous animals and plants can levy significant impacts on native biotic communities. Effective models for relative abundance have been developed; however, a better understanding of the dynamics of actual population size (as opposed to relative abundance) in an invasion would be beneficial to all branches of ecology. In this article, we adopt a hierarchical Bayesian framework for modeling the invasion of such species while addressing the discrete nature of the data and uncertainty associated with the probability of detection. The nonlinear dynamics between discrete time points are intuitively modeled through an embedded deterministic population model with density-dependent growth and dispersal components. Additionally, we illustrate the importance of accommodating spatially varying dispersal rates. The method is applied to the specific case of the Eurasian Collared-Dove, an invasive species at mid-invasion in the United States at the time of this writing. ?? 2006, The International Biometric Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biometrics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1541-0420.2006.00725.x","issn":"0006341X","usgsCitation":"Hooten, M., Wikle, C.K., Dorazio, R., and Royle, J., 2007, Hierarchical spatiotemporal matrix models for characterizing invasions: Biometrics, v. 63, no. 2, https://doi.org/10.1111/j.1541-0420.2006.00725.x.","costCenters":[],"links":[{"id":240414,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212857,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1541-0420.2006.00725.x"}],"volume":"63","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-01-23","publicationStatus":"PW","scienceBaseUri":"505a30a6e4b0c8380cd5d815","contributors":{"authors":[{"text":"Hooten, M.B.","contributorId":50261,"corporation":false,"usgs":true,"family":"Hooten","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":423917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wikle, C. K.","contributorId":57975,"corporation":false,"usgs":true,"family":"Wikle","given":"C.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":423918,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dorazio, R.M. 0000-0003-2663-0468","orcid":"https://orcid.org/0000-0003-2663-0468","contributorId":23475,"corporation":false,"usgs":true,"family":"Dorazio","given":"R.M.","affiliations":[],"preferred":false,"id":423916,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Royle, J. Andrew 0000-0003-3135-2167","orcid":"https://orcid.org/0000-0003-3135-2167","contributorId":96221,"corporation":false,"usgs":true,"family":"Royle","given":"J. Andrew","affiliations":[],"preferred":false,"id":423919,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029775,"text":"70029775 - 2007 - Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil","interactions":[],"lastModifiedDate":"2013-03-24T11:54:30","indexId":"70029775","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2294,"text":"Journal of Foraminiferal Research","active":true,"publicationSubtype":{"id":10}},"title":"Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil","docAbstract":"Numerical analyses of modern foraminiferal abundance and environmental data from the Bertioga Channel (Sa??o Paulo, Brazil) reveal multiple biofacies within an overall paralic setting. Despite its fisheries, mariculture and attraction to tourists, the environmental state of Bertioga Channel remains poorly studied. The present investigation is an attempt to partly fill this gap; the parameters examined include depth, salinity, temperature, organic carbon, sulfur content and bottom sediment type. Muddy sediments with high organic carbon content derived from land drainage are found in the inner parts of the channel, whereas sandy sediment dominates the areas adjacent to the Atlantic Ocean. In the eastern entrance to the channel, sandy sediment contain species of Rotaliida from Facies 1 (including Elphidium discoidale, Elphidium poeyanum, Hanzawaia boueana, Pararotalia cananeiaensis and Nonionella atlantica), reflecting normal marine salinity. Sediments with high percentages of silt and clay in polyhaline and eurybaline environments of the eastern part and Itapanhau?? River contain Facies 2, which includes Ammonia beccarii and Pararotalia cananeiaensis. In the western entrance and central, western and eastern parts, where salinities vary from 18 to 30 psu and the sediments contain both low and high organic carbon, the foraminifera from Facies 3 are dominated by Quinqueloculina milletti, Arenoparrella mexicana, Pararotalia cananeiaensis, Ammonia beccarii, Buliminella elegantissima, Elphidium sp., Elphidium excavatum, Elphidium gunteri and Elphidium poeyanum. In mesohaline and polyhaline waters of the central part, the organic-carbon-rich silt and clay contain Facies 4, which includes Ammonia beccarii, Pararotalia cananeiaensis, Elphidium excavatum and Elphidium sp. Most of organic-carbon-enriched, silty-clay substrates that are subject to the highest fresh-water discharge and high bottom temperatures support two different assemblages: one of mostly Rotaliina and the other mostly of Textulariida (Facies 5 and 6). Facies 5 includes Ammonia beecarii, Elphidium excavatum, Arenoparrella mexicana, Haplophragmoides wilberti, Siphotrochammina lobata, Trochammina inflata and Trochammina sp., all of which are typical of mesohaline sites (mainly Crumau?? and Trindade rivers), and Facies 6 includes Bolivina sp., Ammoastuta salsa, Arenoparrella mexicana, Haplophragmoides wilberti and Trochammina sp., all of which are typical of oligohaline and mesohaline mangrove fringes. The foraminiferal species from the present study are frequently found in paralic environments in Brazil, western Africa and other estuaries around the world.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Foraminiferal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gsjfr.37.3.234","issn":"00961191","usgsCitation":"Eichler, P., Eichler, B., De Miranda, L.B., and Rodrigues, A., 2007, Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil: Journal of Foraminiferal Research, v. 37, no. 3, p. 234-247, https://doi.org/10.2113/gsjfr.37.3.234.","startPage":"234","endPage":"247","numberOfPages":"14","costCenters":[],"links":[{"id":487619,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://dx.doi.org/10.2113/gsjfr.37.3.234","text":"External Repository"},{"id":212861,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gsjfr.37.3.234"},{"id":240418,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c95e4b0c8380cd6fdd6","contributors":{"authors":[{"text":"Eichler, P.P.B.","contributorId":88155,"corporation":false,"usgs":true,"family":"Eichler","given":"P.P.B.","email":"","affiliations":[],"preferred":false,"id":424240,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eichler, B.B.","contributorId":29219,"corporation":false,"usgs":true,"family":"Eichler","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":424239,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"De Miranda, L. B.","contributorId":28073,"corporation":false,"usgs":true,"family":"De Miranda","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":424238,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rodrigues, A.R.","contributorId":25365,"corporation":false,"usgs":true,"family":"Rodrigues","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":424237,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030005,"text":"70030005 - 2007 - A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities","interactions":[],"lastModifiedDate":"2018-04-03T17:34:05","indexId":"70030005","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities","docAbstract":"<p><span>Hydraulic tomography is a promising approach for obtaining information on variations in hydraulic conductivity on the scale of relevance for contaminant transport investigations. This approach involves performing a series of pumping tests in a format similar to tomography. We present a field‐scale assessment of hydraulic tomography in a porous aquifer, with an emphasis on the steady shape analysis methodology. The hydraulic conductivity (K) estimates from steady shape and transient analyses of the tomographic data compare well with those from a tracer test and direct‐push permeameter tests, providing a field validation of the method. Zonations based on equal‐thickness layers and cross‐hole radar surveys are used to regularize the inverse problem. The results indicate that the radar surveys provide some useful information regarding the geometry of the K field. The steady shape analysis provides results similar to the transient analysis at a fraction of the computational burden. This study clearly demonstrates the advantages of hydraulic tomography over conventional pumping tests, which provide only large‐scale averages, and small‐scale hydraulic tests (e.g., slug tests), which cannot assess strata connectivity and may fail to sample the most important pathways or barriers to flow.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR004932","usgsCitation":"Bohling, G.C., Butler, J.J., Zhan, X., and Knoll, M.D., 2007, A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities: Water Resources Research, v. 43, no. 5, Article W05430; 23 p., https://doi.org/10.1029/2006WR004932.","productDescription":"Article W05430; 23 p.","costCenters":[],"links":[{"id":477286,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1808/18966","text":"External Repository"},{"id":240290,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-05-22","publicationStatus":"PW","scienceBaseUri":"5059e3cee4b0c8380cd4622c","contributors":{"authors":[{"text":"Bohling, Geoffrey C.","contributorId":43109,"corporation":false,"usgs":false,"family":"Bohling","given":"Geoffrey","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425256,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butler, James J. Jr.","contributorId":199860,"corporation":false,"usgs":false,"family":"Butler","given":"James","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":425253,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhan, Xiaoyong","contributorId":140206,"corporation":false,"usgs":false,"family":"Zhan","given":"Xiaoyong","email":"","affiliations":[],"preferred":false,"id":425255,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Knoll, Michael D.","contributorId":195370,"corporation":false,"usgs":false,"family":"Knoll","given":"Michael","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":425254,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029895,"text":"70029895 - 2007 - Holocene sea-level oscillations and environmental changes on the Eastern Black Sea shelf","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029895","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Holocene sea-level oscillations and environmental changes on the Eastern Black Sea shelf","docAbstract":"A multi-proxy study of four sediment cores from the Eastern (Caucasian) Black Sea shelf revealed five transgressive-regressive cycles overprinted on the general trend of glacioeustatic sea-level rise during the last 11,000??14C yr. These cycles are well represented in micro-and macrofossil assemblages, sedimentation rates, and grain size variations. The oldest recovered sediments were deposited in the Neoeuxinian semi-freshwater basin (??? 10,500-9000??14C yr BP) and contain a Caspian-type mollusk fauna dominated by Dreissena rostriformis. Low ??18O and ??13C values are measured on this species. The first appearance of marine mollusks and ostracodes from the Mediterranean is established in this part of the Black Sea at ??? 8200??14C yr BP, i.e., about 1000-2000??yr later than the appearance of marine microfossils in the deeper part of the sea. The Early Holocene (Bugazian to Vityazevian) condensed section of shell and shelly mud sediments with at least two hiatuses represent a high-energy shelf-edge facies. It contains a transitional assemblage representing a mixture of Caspian and Mediterranean fauna. This pattern suggests a dual-flow regime via the Bosphorus after 8200??14C yr BP. Caspian species disappear and oligohaline species decrease in abundance during the Vityazevian-Prekalamitian cycle. Later, during the Middle to Late Holocene, low sea-level stands are characterized by shell layers, whereas silty mud with various mollusk and ostracode assemblages rapidly accumulated during transgressions. Restricted mud accumulation, as well as benthic faunal composition and abundance, suggest high-energy and well-ventilated bottom water during low sea-level stands. A trend of 18O enrichment in mollusk shells points to an increase in bottom-water salinity during the Vityazevian to Kalamitian transgressions (??? 7000 to 5700??14C yr BP) due to a more open connection with the Mediterranean, while a pronounced increase in polyhaline species abundance is established during the Kalamitian to Djemetean transgressions (??? 6400 to 2700??14C yr BP). However, the composition of the faunal assemblage indicates that bottom-water salinity never exceeded modern values of 18-20??psu. ?? 2006 Elsevier B.V. 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