{"pageNumber":"2473","pageRowStart":"61800","pageSize":"25","recordCount":184660,"records":[{"id":70030220,"text":"70030220 - 2006 - Youngest volcanism about 1 million years ago at Kahoolawe Island, Hawaii","interactions":[],"lastModifiedDate":"2020-10-05T14:49:45.743857","indexId":"70030220","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Youngest volcanism about 1 million years ago at Kahoolawe Island, Hawaii","docAbstract":"Young volcanic deposits in Kahoolawe Island, cutting up through the caldera-filling lava, colluvium and talus in the west wall of Kanapou Bay, had long been stratigraphically considered the rejuvenated-stage products. New K-Ar ages, combined with magnetic polarity data, show that young volcanism was at about 0.98-1.04 Ma and indicate no substantial quiescence between the filling of the caldera and the young volcanism. This result, and the tholeiitic characteristics of the young deposits, suggest they are a component of late shield-stage volcanism. ?? 2005 Elsevier B.V. All rights reserved.","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2005.10.001","issn":"03770273","usgsCitation":"Sano, H., Sherrod, D.R., and Tagami, T., 2006, Youngest volcanism about 1 million years ago at Kahoolawe Island, Hawaii: Journal of Volcanology and Geothermal Research, v. 152, no. 1-2, p. 91-96, https://doi.org/10.1016/j.jvolgeores.2005.10.001.","productDescription":"6 p.","startPage":"91","endPage":"96","numberOfPages":"6","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":239433,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kahoolawe Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.73507690429688,\n              20.486200430098492\n            ],\n            [\n              -156.49887084960938,\n              20.486200430098492\n            ],\n            [\n              -156.49887084960938,\n              20.632784250388028\n            ],\n            [\n              -156.73507690429688,\n              20.632784250388028\n            ],\n            [\n              -156.73507690429688,\n              20.486200430098492\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"152","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd252e4b08c986b32f753","contributors":{"authors":[{"text":"Sano, H.","contributorId":99771,"corporation":false,"usgs":true,"family":"Sano","given":"H.","email":"","affiliations":[],"preferred":false,"id":426182,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sherrod, D. R.","contributorId":44559,"corporation":false,"usgs":true,"family":"Sherrod","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":426181,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tagami, Takahiro","contributorId":7474,"corporation":false,"usgs":true,"family":"Tagami","given":"Takahiro","email":"","affiliations":[],"preferred":false,"id":426180,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030219,"text":"70030219 - 2006 - Ecological and physiological factors affecting brood patch area and prolactin levels in arctic-nesting geese","interactions":[],"lastModifiedDate":"2017-05-08T13:14:19","indexId":"70030219","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Ecological and physiological factors affecting brood patch area and prolactin levels in arctic-nesting geese","docAbstract":"<p><span>We investigated effects of ecological and physiological factors on brood patch area and prolactin levels in free-ranging Lesser Snow Geese (</span><i>Chen caerulescens caerulescens</i><span>; hereafter “Snow Geese”) and Ross's Geese (</span><i>C. rossii</i><span>). On the basis of the body-size hypothesis, we predicted that the relationships between prolactin levels, brood patch area, and body condition would be stronger in Ross's Geese than in the larger Snow Geese. We found that brood patch area was positively related to clutch volume and inversely related to prolactin levels in Ross's Geese, but not in Snow Geese. Nest size, nest habitat, and first egg date did not affect brood patch area in either species. Prolactin levels increased as incubation progressed in female Snow Geese, but this relationship was not significant in Ross's Geese. Prolactin levels and body condition (as indexed by size-adjusted body mass) were inversely related in Ross's Geese, but not in Snow Geese. Our findings are consistent with the prediction that relationships between prolactin levels, brood patch area, and body condition are relatively stronger in Ross's Geese, because they mobilize endogenous reserves at faster rates than Snow Geese.</span></p>","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2006)123[405:EAPFAB]2.0.CO;2","issn":"00048038","usgsCitation":"Jonsson, J., Afton, A., Alisauskas, R., Bluhm, C., and El Halawani, M., 2006, Ecological and physiological factors affecting brood patch area and prolactin levels in arctic-nesting geese: The Auk, v. 123, no. 2, p. 405-418, https://doi.org/10.1642/0004-8038(2006)123[405:EAPFAB]2.0.CO;2.","productDescription":"14 p.","startPage":"405","endPage":"418","costCenters":[],"links":[{"id":477464,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/0004-8038(2006)123[405:eapfab]2.0.co;2","text":"Publisher Index Page"},{"id":239396,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"123","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0543e4b0c8380cd50d1b","contributors":{"authors":[{"text":"Jonsson, J.E.","contributorId":61623,"corporation":false,"usgs":true,"family":"Jonsson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":426176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Afton, A. D.","contributorId":83467,"corporation":false,"usgs":true,"family":"Afton","given":"A. D.","affiliations":[],"preferred":false,"id":426177,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alisauskas, R.T.","contributorId":89645,"corporation":false,"usgs":true,"family":"Alisauskas","given":"R.T.","affiliations":[],"preferred":false,"id":426178,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bluhm, C.K.","contributorId":40016,"corporation":false,"usgs":true,"family":"Bluhm","given":"C.K.","email":"","affiliations":[],"preferred":false,"id":426175,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"El Halawani, M.E.","contributorId":92491,"corporation":false,"usgs":true,"family":"El Halawani","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":426179,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030218,"text":"70030218 - 2006 - Comparison of breeding bird and vegetation communities in primary and secondary forests of Great Smoky Mountains National Park","interactions":[],"lastModifiedDate":"2016-04-19T12:05:11","indexId":"70030218","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of breeding bird and vegetation communities in primary and secondary forests of Great Smoky Mountains National Park","docAbstract":"<p>We compared breeding bird communities and vegetation characteristics at paired point locations in primary (undisturbed) and mature secondary forest (70-100 years old) sites in Great Smoky Mountains National Park, USA to understand how sites logged prior to creation of the park compare to undisturbed sites following 70 years of protection from human disturbance. We found that bird and vegetation communities are currently similar, but retain some differences in species composition. Rank abundance curves for primary and secondary forest bird communities showed very similar patterns of species dominance. Species composition was also similar on the two sites which shared 24 of the 25 most frequently recorded species. Nonetheless, comparisons of density estimates derived from distance sampling showed three bird species were more abundant on primary forest sites and that one bird species was significantly more abundant on secondary forest sites. Notably, comparisons based on raw counts (unadjusted for potential differences in detectability) produced somewhat different results. Analyses of vegetation samples for the paired sites also showed relative similarity, but with some differences between primary and secondary forests. Primary forest sites had more large trees (trees greater than 50 cm diameter at breast height) and late successional species. Primary forest sites had a denser tall shrub layer while secondary forest sites had a denser canopy layer. Nonetheless, tree species richness, basal area of live trees and number of standing snags did not differ between primary and secondary forest sites. Results indicate that breeding bird communities on sites within the park that were logged commercially 70 years ago are currently quite similar to bird communities on sites with no history of human disturbance. Similarities between the bird communities on previously disturbed and undisturbed sites in Great Smoky Mountains National Park may exceed those on more fragmented landscapes because large patches of primary forest, adjacent to commercially logged sites, remained in the park when it was established in 1935. These patches of primary forest may have served as source areas for commercially logged sites.</p>","language":"English","publisher":"Elsevier Science Ltd.","doi":"10.1016/j.biocon.2005.10.044","issn":"00063207","usgsCitation":"Simons, T.R., Shriner, S.A., and Farnsworth, G.L., 2006, Comparison of breeding bird and vegetation communities in primary and secondary forests of Great Smoky Mountains National Park: Biological Conservation, v. 129, no. 3, p. 302-311, https://doi.org/10.1016/j.biocon.2005.10.044.","productDescription":"10 p.","startPage":"302","endPage":"311","numberOfPages":"10","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":239395,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina, Tennessee","otherGeospatial":"Great Smoky Mountains National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      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,{"id":70030217,"text":"70030217 - 2006 - State summaries: Utah","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70030217","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2755,"text":"Mining Engineering","active":true,"publicationSubtype":{"id":10}},"title":"State summaries: Utah","docAbstract":"The value of Utah's mineral production in 2005 was estimated to be a record $3.58 billion. This was $1.26 billion higher than the revised value of $2.32 billion for 2004. All major industry segments gained in value in 2005. In the value of nonfuel mineral production, Utah ranked fourth. The outlook for 2006 is cautiously optimistic. The value of mineral production is projected to increase slightly in 2006 due to increased production of most base and precious metals, coal and most major industrial minerals.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mining Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00265187","usgsCitation":"Bon, R., and Krahulec, K., 2006, State summaries: Utah: Mining Engineering, v. 58, no. 5, p. 116-122.","startPage":"116","endPage":"122","numberOfPages":"7","costCenters":[],"links":[{"id":239364,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"58","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b96d9e4b08c986b31b74f","contributors":{"authors":[{"text":"Bon, R.L.","contributorId":26880,"corporation":false,"usgs":true,"family":"Bon","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":426170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krahulec, K.A.","contributorId":42429,"corporation":false,"usgs":true,"family":"Krahulec","given":"K.A.","affiliations":[],"preferred":false,"id":426171,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70194845,"text":"70194845 - 2006 - Ecological restoration of Southwestern ponderosa pine ecosystems: A broad perspective","interactions":[],"lastModifiedDate":"2018-01-23T13:37:28","indexId":"70194845","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Ecological restoration of Southwestern ponderosa pine ecosystems: A broad perspective","docAbstract":"<p>No abstract available.<br data-mce-bogus=\"1\"></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Wildfire: A century of failed forest policy","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Island Press","isbn":"9781597260701","usgsCitation":"Allen, C.D., Savage, M., Falk, D.A., Suckling, K.F., Swetnam, T.W., Schulke, T., Stacey, P.B., Morgan, P., Hoffman, M., and Klingel, J.T., 2006, Ecological restoration of Southwestern ponderosa pine ecosystems: A broad perspective, chap. <i>of</i> Wildfire: A century of failed forest policy.","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":350521,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":350519,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/1015220","text":"USGS Publications Warehouse citation for the original publicaiton of this article"},{"id":350518,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://islandpress.org/book/wildfire","text":"Book: <i>Wildfire: A century of failed forest policy</i>"}],"publicComments":"This product is a reprint of the following previously-published article: <i>Allen, C.D., M. Savage, D.A. Falk, K.F. Suckling, T.W. Swetnam, T. Schulke, P.B. Stacey, P. Morgan, M. Hoffman, and J.Klingel. 2002. Ecological restoration of Southwestern ponderosa pine ecosystems: A broad perspective. Ecological Applications 12(5):1418-1433</i>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a6857e1e4b06e28e9c65e6b","contributors":{"editors":[{"text":"Wuerthner, George","contributorId":113434,"corporation":false,"usgs":false,"family":"Wuerthner","given":"George","email":"","affiliations":[],"preferred":false,"id":725605,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Allen, Craig D. 0000-0002-8777-5989 craig_allen@usgs.gov","orcid":"https://orcid.org/0000-0002-8777-5989","contributorId":2597,"corporation":false,"usgs":true,"family":"Allen","given":"Craig","email":"craig_allen@usgs.gov","middleInitial":"D.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":725595,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Savage, Melissa","contributorId":174055,"corporation":false,"usgs":false,"family":"Savage","given":"Melissa","email":"","affiliations":[],"preferred":false,"id":725596,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Falk, Donald A.","contributorId":197570,"corporation":false,"usgs":false,"family":"Falk","given":"Donald","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":725597,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Suckling, Kieran F.","contributorId":22297,"corporation":false,"usgs":false,"family":"Suckling","given":"Kieran","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":725598,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swetnam, Thomas W.","contributorId":191872,"corporation":false,"usgs":false,"family":"Swetnam","given":"Thomas","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":725599,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schulke, Todd","contributorId":26659,"corporation":false,"usgs":false,"family":"Schulke","given":"Todd","email":"","affiliations":[],"preferred":false,"id":725600,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stacey, Peter B.","contributorId":56608,"corporation":false,"usgs":false,"family":"Stacey","given":"Peter","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":725601,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Morgan, Penelope","contributorId":127585,"corporation":false,"usgs":false,"family":"Morgan","given":"Penelope","email":"","affiliations":[],"preferred":false,"id":725602,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Hoffman, Martos","contributorId":73743,"corporation":false,"usgs":false,"family":"Hoffman","given":"Martos","email":"","affiliations":[],"preferred":false,"id":725603,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Klingel, Jon T.","contributorId":36904,"corporation":false,"usgs":false,"family":"Klingel","given":"Jon","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":725604,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70030224,"text":"70030224 - 2006 - Soil-atmospheric exchange of CO2, CH4, and N2O in three subtropical forest ecosystems in southern China","interactions":[],"lastModifiedDate":"2017-04-11T15:59:56","indexId":"70030224","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1837,"text":"Global Change Biology","active":true,"publicationSubtype":{"id":10}},"title":"Soil-atmospheric exchange of CO2, CH4, and N2O in three subtropical forest ecosystems in southern China","docAbstract":"The magnitude, temporal, and spatial patterns of soil-atmospheric greenhouse gas (hereafter referred to as GHG) exchanges in forests near the Tropic of Cancer are still highly uncertain. To contribute towards an improvement of actual estimates, soil-atmospheric CO2, CH4, and N2O fluxes were measured in three successional subtropical forests at the Dinghushan Nature Reserve (hereafter referred to as DNR) in southern China. Soils in DNR forests behaved as N2O sources and CH4 sinks. Annual mean CO2, N2O, and CH4 fluxes (mean ?? SD) were 7.7 ?? 4.6MgCO2-Cha-1 yr-1, 3.2 ?? 1.2 kg N2ONha-1 yr-1, and 3.4 ?? 0.9 kgCH4-Cha-1 yr-1, respectively. The climate was warm and wet from April through September 2003 (the hot-humid season) and became cool and dry from October 2003 through March 2004 (the cool-dry season). The seasonality of soil CO2 emission coincided with the seasonal climate pattern, with high CO2 emission rates in the hot-humid season and low rates in the cool-dry season. In contrast, seasonal patterns of CH4 and N2O fluxes were not clear, although higher CH4 uptake rates were often observed in the cool-dry season and higher N2O emission rates were often observed in the hot-humid season. GHG fluxes measured at these three sites showed a clear increasing trend with the progressive succession. If this trend is representative at the regional scale, CO2 and N2O emissions and CH4 uptake in southern China may increase in the future in light of the projected change in forest age structure. Removal of surface litter reduced soil CO2 effluxes by 17-44% in the three forests but had no significant effect on CH4 absorption and N2O emission rates. This suggests that microbial CH4 uptake and N2O production was mainly related to the mineral soil rather than in the surface litter layer. ?? 2006 Blackwell Publishing Ltd.","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2486.2006.01109.x","issn":"13541013","usgsCitation":"Tang, X., Liu, S., Zhou, G., Zhang, D., and Zhou, C., 2006, Soil-atmospheric exchange of CO2, CH4, and N2O in three subtropical forest ecosystems in southern China: Global Change Biology, v. 12, no. 3, p. 546-560, https://doi.org/10.1111/j.1365-2486.2006.01109.x.","productDescription":"15 p.","startPage":"546","endPage":"560","numberOfPages":"15","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":239471,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212060,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2486.2006.01109.x"}],"volume":"12","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-03-07","publicationStatus":"PW","scienceBaseUri":"505b9222e4b08c986b319d12","contributors":{"authors":[{"text":"Tang, X.","contributorId":43082,"corporation":false,"usgs":true,"family":"Tang","given":"X.","email":"","affiliations":[],"preferred":false,"id":426196,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, S.","contributorId":93170,"corporation":false,"usgs":true,"family":"Liu","given":"S.","affiliations":[],"preferred":false,"id":426198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhou, G.","contributorId":12604,"corporation":false,"usgs":true,"family":"Zhou","given":"G.","email":"","affiliations":[],"preferred":false,"id":426194,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zhang, Dongxiao","contributorId":26409,"corporation":false,"usgs":true,"family":"Zhang","given":"Dongxiao","email":"","affiliations":[],"preferred":false,"id":426195,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zhou, C.","contributorId":88466,"corporation":false,"usgs":true,"family":"Zhou","given":"C.","email":"","affiliations":[],"preferred":false,"id":426197,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030222,"text":"70030222 - 2006 - Uplift, thermal unrest and magma intrusion at Yellowstone caldera","interactions":[],"lastModifiedDate":"2016-10-05T15:10:27","indexId":"70030222","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Uplift, thermal unrest and magma intrusion at Yellowstone caldera","docAbstract":"<p><span>The Yellowstone caldera, in the western United States, formed </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>640,000&nbsp;years ago when an explosive eruption ejected </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>1,000&nbsp;km</span><sup>3</sup><span> of material</span><sup><a href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B1\" data-mce-href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B1\">1</a></sup><span>. It is the youngest of a series of large calderas that formed during sequential cataclysmic eruptions that began </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>16 million years ago in eastern Oregon and northern Nevada. The Yellowstone caldera was largely buried by rhyolite lava flows during eruptions that occurred from </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>150,000 to </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>70,000&nbsp;years ago</span><sup><a href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B1\" data-mce-href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B1\">1</a></sup><span>. Since the last eruption, Yellowstone has remained restless, with high seismicity, continuing uplift/subsidence episodes with movements of </span><img src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\" alt=\"approx\" data-mce-src=\"http://www.nature.com/__chars/math/special/sim/black/med/base/glyph.gif\"><span>70&nbsp;cm historically</span><sup><a href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B2\" data-mce-href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B2\">2</a></sup><span> to several metres since the Pleistocene epoch</span><sup><a href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B3\" data-mce-href=\"http://www.nature.com/nature/journal/v440/n7080/full/nature04507.html#B3\">3</a></sup><span>, and intense hydrothermal activity. Here we present observations of a new mode of surface deformation in Yellowstone, based on radar interferometry observations from the European Space Agency ERS-2 satellite. We infer that the observed pattern of uplift and subsidence results from variations in the movement of molten basalt into and out of the Yellowstone volcanic system.</span></p>","language":"English","publisher":"Macmillan Journals Ltd.","doi":"10.1038/nature04507","issn":"00280836","usgsCitation":"Wicks, C., Thatcher, W., Dzurisin, D., and Svarc, J., 2006, Uplift, thermal unrest and magma intrusion at Yellowstone caldera: Nature, v. 440, no. 7080, p. 72-75, https://doi.org/10.1038/nature04507.","productDescription":"4 p.","startPage":"72","endPage":"75","numberOfPages":"4","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":239435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.0882568359375,\n              44.25110134697976\n            ],\n            [\n              -111.0882568359375,\n              45.01141864227728\n            ],\n            [\n              -110.0775146484375,\n              45.01141864227728\n            ],\n            [\n              -110.0775146484375,\n              44.25110134697976\n            ],\n            [\n              -111.0882568359375,\n              44.25110134697976\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"440","issue":"7080","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd2ae4b08c986b328ef9","contributors":{"authors":[{"text":"Wicks, Charles W.","contributorId":52048,"corporation":false,"usgs":true,"family":"Wicks","given":"Charles W.","affiliations":[],"preferred":false,"id":426189,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thatcher, Wayne","contributorId":35325,"corporation":false,"usgs":true,"family":"Thatcher","given":"Wayne","affiliations":[],"preferred":false,"id":426190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":426191,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Svarc, Jerry","contributorId":82012,"corporation":false,"usgs":true,"family":"Svarc","given":"Jerry","affiliations":[],"preferred":false,"id":426192,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028985,"text":"70028985 - 2006 - Precipitation induced stream flow: An event based chemical and isotopic study of a small stream in the Great Plains region of the USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028985","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Precipitation induced stream flow: An event based chemical and isotopic study of a small stream in the Great Plains region of the USA","docAbstract":"A small stream in the Great Plains of USA was sampled to understand the streamflow components following intense precipitation and the influence of water storage structures in the drainage basin. Precipitation, stream, ponds, ground-water and soil moisture were sampled for determination of isotopic (D, 18O) and chemical (Cl, SO4) composition before and after two intense rain events. Following the first storm event, flow at the downstream locations was generated primarily through shallow subsurface flow and runoff whereas in the headwaters region - where a pond is located in the stream channel - shallow ground-water and pond outflow contributed to the flow. The distinct isotopic signatures of precipitation and the evaporated pond water allowed separation of the event water from the other sources that contributed to the flow. Similarly, variations in the Cl and SO4 concentrations helped identify the relative contributions of ground-water and soil moisture to the streamflow. The relationship between deuterium excess and Cl or SO4 content reveals that the early contributions from a rain event to streamflow depend upon the antecedent climatic conditions and the position along the stream channel within the watershed. The design of this study, in which data from several locations within a watershed were collected, shows that in small streams changes in relative contributions from ground water and soil moisture complicate hydrograph separation, with surface-water bodies providing additional complexity. It also demonstrates the usefulness of combined chemical and isotopic methods in hydrologic investigations, especially the utility of the deuterium excess parameter in quantifying the relative contributions of various source components to the stream flow. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2006.04.004","issn":"00221694","usgsCitation":"Machavaram, M., Whittemore, D.O., Conrad, M., and Miller, N., 2006, Precipitation induced stream flow: An event based chemical and isotopic study of a small stream in the Great Plains region of the USA: Journal of Hydrology, v. 330, no. 3-4, p. 470-480, https://doi.org/10.1016/j.jhydrol.2006.04.004.","startPage":"470","endPage":"480","numberOfPages":"11","costCenters":[],"links":[{"id":209908,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2006.04.004"},{"id":236660,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"330","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a811ae4b0c8380cd7b383","contributors":{"authors":[{"text":"Machavaram, M.V.","contributorId":9051,"corporation":false,"usgs":true,"family":"Machavaram","given":"M.V.","email":"","affiliations":[],"preferred":false,"id":420841,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whittemore, Donald O.","contributorId":28748,"corporation":false,"usgs":false,"family":"Whittemore","given":"Donald","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":420843,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Conrad, M.E.","contributorId":26088,"corporation":false,"usgs":true,"family":"Conrad","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":420842,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Miller, N.L.","contributorId":82904,"corporation":false,"usgs":true,"family":"Miller","given":"N.L.","email":"","affiliations":[],"preferred":false,"id":420844,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028958,"text":"70028958 - 2006 - Integrated biostratigraphy of foraminifers, radiolarians and conodonts in shallow and deep water Middle Permian (Capitanian) deposits of the \"Rader slide\", Guadalupe Mountains, West Texas","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028958","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3481,"text":"Stratigraphy","active":true,"publicationSubtype":{"id":10}},"title":"Integrated biostratigraphy of foraminifers, radiolarians and conodonts in shallow and deep water Middle Permian (Capitanian) deposits of the \"Rader slide\", Guadalupe Mountains, West Texas","docAbstract":"A diverse assemblage of microfossils is present in a 6m thick sequence of three debris flow deposits interbedded with thin turbidite limestone beds and fine grained siliciclastics exposed above the megaconglomerate in a section (known as the \"Rader Slide\" in numerous guidebook stops) of the Rader Limestone Member of the Bell Canyon Formation of Capitanian age (Middle Permian) in the Guadalupe Mountains of West Texas. Each debris flow, derived from nearby Capitan Reef shelf-margin and slope deposits, contains a distinct microfossil assemblage. Small foraminifers and fusulinaceans, conodonts, radiolarians, sponge spicules, fish dermal plates and teeth, and other fragmental fossils are present in this sequence. Conodonts are relatively scarce in the first (or lowest) debris flow, except in its upper part, but they are common to abundant in the other two debris flows, and very abundant in several of the thin turbidite limestone beds. All of the conodonts present appear to be morphotypes of one population of the species Jinogondolella postserrata, except for one new conodont species, and the Jinogondolella postserrata Zone is clearly documented in this sequence. The debris flows contain the fusulinaceans Rauserella, rare Codonofusiella, Polydiexodina, Leella? and various species of the small foraminifers Globivalvulina, Hemigordius, Baisalina, Abadehella, Deckerella, Neoendothyranella, Vachardella, Geinitzina, and Polarisella. Some of the thin turbidite limestone beds contain a foraminiferal assemblage similar to that found in the debris flows, but with lower diversity. Many small foraminiferal species appear to be endemic, although a few are closely related to species known in Permian age strata in Italy, Greenland, the Russian Far East, northeastern part of Russia (Omolon massif), and the Zechstein of Germany and the Baltic area. Two thin limestone beds above the second debris flow contain primarily radiolarian species known from the Follicucullus japonicus Zone of Japan. Nine new species of small foraminifers (Bisphaera? improvisa, Vissariotaxis? nativus, Multidiscus raderensis, Baisalina miscella, Agathammina minuscula, Polarisella globosa, Geinitzina jucunda, Robustopachyphloia texana and Spireitlina capitanensis) and one new conodont species Jinogondolella gladirobusta are described.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Stratigraphy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00262803","usgsCitation":"Nestell, M., Nestell, G., Wardlaw, B.R., and Sweatt, M., 2006, Integrated biostratigraphy of foraminifers, radiolarians and conodonts in shallow and deep water Middle Permian (Capitanian) deposits of the \"Rader slide\", Guadalupe Mountains, West Texas: Stratigraphy, v. 3, no. 3, p. 161-194.","startPage":"161","endPage":"194","numberOfPages":"34","costCenters":[],"links":[{"id":236522,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3c5ce4b0c8380cd62ca4","contributors":{"authors":[{"text":"Nestell, M.K.","contributorId":44296,"corporation":false,"usgs":true,"family":"Nestell","given":"M.K.","email":"","affiliations":[],"preferred":false,"id":420718,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nestell, G.P.","contributorId":59584,"corporation":false,"usgs":true,"family":"Nestell","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":420719,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wardlaw, B. R.","contributorId":9269,"corporation":false,"usgs":true,"family":"Wardlaw","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":420717,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sweatt, M.J.","contributorId":76534,"corporation":false,"usgs":true,"family":"Sweatt","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":420720,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028963,"text":"70028963 - 2006 - Surface slip associated with the 2004 Parkfield, California, earthquake measured on alinement arrays","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028963","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Surface slip associated with the 2004 Parkfield, California, earthquake measured on alinement arrays","docAbstract":"Although still continuing, surface slip from the 2004 Parkfield earth-quake as measured on alinement arrays appears to be approaching about 30-35 cm between Parkfield and Gold Hill. This includes slip along the main trace and the Southwest Fracture Zone (SWFZ). Slip here was higher in 1966 at about 40 cm. The distribution of 2004 slip appears to have a shape similar to that of the 1966 event, but final slip is expected to be lower in 2004 by about 3-15 cm, even when continuing slip is accounted for. Proportionately, this difference is most notable at the south end at Highway 46, where the 1966 event slip was 13 cm compared to the 2004 slip of 4 cm. Continuous Global Positioning System and creepmeters suggest that significant surface coseismic slip apparently occurred mainly on the SWFZ and perhaps on Middle Mountain (the latter possibly caused by shaking) (Langbein et al., 2005). Creepmeters indicate only minor (<0.2 cm) surface coseismic slip occurred on the main trace between Parkfield and Gold Hill. We infer that 3-6 cm slip accumulated across our arrays in the first 24 hr. At Highway 46, slip appears complete, whereas the remaining sites are expected to take 2-6 years to reach their background creep rates. Following the 1966 event, afterslip at one site persisted as much as 5-10 years. The much longer recurrence intervals between the past two Parkfield earthquakes and the decreasing slip per event may suggest that larger slip deficits are now growing along the Parkfield segment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050806","issn":"00371106","usgsCitation":"Lienkaemper, J.J., Baker, B., and McFarland, F., 2006, Surface slip associated with the 2004 Parkfield, California, earthquake measured on alinement arrays: Bulletin of the Seismological Society of America, v. 96, no. 4 B, https://doi.org/10.1785/0120050806.","costCenters":[],"links":[{"id":209805,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050806"},{"id":236524,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"4 B","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9fc0e4b08c986b31e7eb","contributors":{"authors":[{"text":"Lienkaemper, J. J.","contributorId":71947,"corporation":false,"usgs":true,"family":"Lienkaemper","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":420758,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baker, B.","contributorId":63595,"corporation":false,"usgs":true,"family":"Baker","given":"B.","affiliations":[],"preferred":false,"id":420757,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McFarland, F.S.","contributorId":25741,"corporation":false,"usgs":true,"family":"McFarland","given":"F.S.","email":"","affiliations":[],"preferred":false,"id":420756,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028965,"text":"70028965 - 2006 - Holocene environmental and parasequence development of the St. Jones Estuary, Delaware (USA): Foraminiferal proxies of natural climatic and anthropogenic change","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028965","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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 environmental and parasequence development of the St. Jones Estuary, Delaware (USA): Foraminiferal proxies of natural climatic and anthropogenic change","docAbstract":"The benthic foraminiferal record of marshes located along western Delaware Bay (St. Jones Estuary, USA) reflects the response of estuaries to sea-level and paleoclimate change during the Holocene. System tracts are recognized and within them parasequences based on sedimentological and foraminiferal assemblages identification. The parasequences defined by foraminiferal assemblages appear correlative with rapid Holocene climate changes that are of worldwide significance: 6000-5000, 4200-3800, 3500-2500, 1200-1000, and 600??cal years BP. Following postglacial sea-level rise, modern subestuaries and marshes in the region began to develop between 6000 and 4000??years BP, depending on their proximity to the mouth of Delaware Bay and coastal geomorphology. Initial sediments were fluvial in origin, with freshwater marshes established around 4000??years BP. The subsequent sea-level transgression occurred sufficiently slowly that freshwater marshes alternated with salt marshes at the same sites to around 3000??years BP. Locally another two transgressions are identified at 1800 and 1000??years BP respectively. Marine influence increased in the estuaries until 600??years BP (Little Ice Age), when regression occurred. Sea-level began to rise again during the mid-19th Century at the end of the Little Ice Age, when marshes became established. The presence of a sand lens in the upper and middle estuary and the reduction in the number of tests in the top samples in cores from the same area also suggest an anthropogenic influence. The estuary infill resulted in a sharp transgressive sequence, represented by salt marsh foraminiferal assemblages in the upper part of the cores. The increase in marsh foraminifera in both areas suggests an increase in marine influence that might be due to the transgression beginning at the end of the Little Ice Age about 150-180??years ago coupled with anthropogenic straightening of the channel in 1913. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaeogeography, Palaeoclimatology, Palaeoecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.palaeo.2006.04.011","issn":"00310182","usgsCitation":"Leorri, E., Martin, R., and McLaughlin, P., 2006, Holocene environmental and parasequence development of the St. Jones Estuary, Delaware (USA): Foraminiferal proxies of natural climatic and anthropogenic change: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 241, no. 3-4, p. 590-607, https://doi.org/10.1016/j.palaeo.2006.04.011.","startPage":"590","endPage":"607","numberOfPages":"18","costCenters":[],"links":[{"id":209830,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2006.04.011"},{"id":236558,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"241","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a31dfe4b0c8380cd5e2e2","contributors":{"authors":[{"text":"Leorri, E.","contributorId":46283,"corporation":false,"usgs":true,"family":"Leorri","given":"E.","affiliations":[],"preferred":false,"id":420763,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, R.","contributorId":59223,"corporation":false,"usgs":true,"family":"Martin","given":"R.","affiliations":[],"preferred":false,"id":420764,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McLaughlin, P.","contributorId":20133,"corporation":false,"usgs":true,"family":"McLaughlin","given":"P.","email":"","affiliations":[],"preferred":false,"id":420762,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028957,"text":"70028957 - 2006 - Integrating field research, modeling and remote sensing to quantify morphodynamics in a high-energy coastal setting, ocean beach, San Francisco, California","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70028957","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Integrating field research, modeling and remote sensing to quantify morphodynamics in a high-energy coastal setting, ocean beach, San Francisco, California","docAbstract":"Wave and coastal circulation modeling are combined with multibeam bathymetry, high-resolution beach surveys, cross-shore Personal Water Craft surveys, digital bed sediment camera surveys, and real-time video monitoring to quantify morphological change and nearshore processes at Ocean Beach, San Francisco. Initial SWAN (Simulating Waves Nearshore) wave modeling results show a focusing of wave energy at the location of an erosion hot spot on the southern end of Ocean Beach during prevailing northwest swell conditions. During El Nin??o winters, swell out of the west and southwest dominates the region, and although the wave energy is focused further to the north on Ocean Beach, the oblique wave approach sets up a strong northerly littoral drift, thereby starving the southern end of sediment, leaving it increasingly vulnerable to wave attack when the persistent northwest swell returns. An accurate assessment of the interaction between wave and tidal processes is crucial for evaluating coastal management options in an area that includes the annual dredging and disposal of ship channel sediment and an erosion hot spot that is posing a threat to local infrastructure. Copyright ASCE 2006.","largerWorkTitle":"Coastal Dynamics 2005 - Proceedings of the Fifth Coastal Dynamics International Conference","conferenceTitle":"5th Coastal Dynamics International Conference","conferenceDate":"4 April 2005 through 8 April 2005","conferenceLocation":"Barcelona","language":"English","doi":"10.1061/40855(214)96","isbn":"0784408556; 9780784408551","usgsCitation":"Barnard, P., and Hanes, D., 2006, Integrating field research, modeling and remote sensing to quantify morphodynamics in a high-energy coastal setting, ocean beach, San Francisco, California, <i>in</i> Coastal Dynamics 2005 - Proceedings of the Fifth Coastal Dynamics International Conference, Barcelona, 4 April 2005 through 8 April 2005, https://doi.org/10.1061/40855(214)96.","costCenters":[],"links":[{"id":209781,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/40855(214)96"},{"id":236491,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505a3c78e4b0c8380cd62d6e","contributors":{"authors":[{"text":"Barnard, P.L.","contributorId":20527,"corporation":false,"usgs":true,"family":"Barnard","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":420715,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanes, D.M.","contributorId":22479,"corporation":false,"usgs":true,"family":"Hanes","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":420716,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028959,"text":"70028959 - 2006 - Mercury in water and biomass of microbial communities in hot springs of Yellowstone National Park, USA","interactions":[],"lastModifiedDate":"2018-10-29T09:28:55","indexId":"70028959","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Mercury in water and biomass of microbial communities in hot springs of Yellowstone National Park, USA","docAbstract":"<p>Ultra-clean sampling methods and approaches typically used in pristine environments were applied to quantify concentrations of Hg species in water and microbial biomass from hot springs of Yellowstone National Park, features that are geologically enriched with Hg. Microbial populations of chemically-diverse hot springs were also characterized using modern methods in molecular biology as the initial step toward ongoing work linking Hg speciation with microbial processes. Molecular methods (amplification of environmental DNA using 16S rDNA primers, cloning, denatured gradient gel electrophoresis (DGGE) screening of clone libraries, and sequencing of representative clones) were used to examine the dominant members of microbial communities in hot springs. Total Hg (THg), monomethylated Hg (MeHg), pH, temperature, and other parameters influential to Hg speciation and microbial ecology are reported for hot springs water and associated microbial mats.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.apgeochem.2006.08.004","issn":"08832927","usgsCitation":"King, S., Behnke, S., Slack, K., Krabbenhoft, D., Nordstrom, D.K., Burr, M., and Striegl, R.G., 2006, Mercury in water and biomass of microbial communities in hot springs of Yellowstone National Park, USA: Applied Geochemistry, v. 21, no. 11, p. 1868-1879, https://doi.org/10.1016/j.apgeochem.2006.08.004.","productDescription":"12 p.","startPage":"1868","endPage":"1879","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":236523,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209804,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2006.08.004"}],"volume":"21","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a541fe4b0c8380cd6ceb0","contributors":{"authors":[{"text":"King, S.A.","contributorId":74562,"corporation":false,"usgs":true,"family":"King","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":420724,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Behnke, S.","contributorId":62394,"corporation":false,"usgs":true,"family":"Behnke","given":"S.","email":"","affiliations":[],"preferred":false,"id":420722,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slack, K.","contributorId":94484,"corporation":false,"usgs":true,"family":"Slack","given":"K.","affiliations":[],"preferred":false,"id":420727,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Krabbenhoft, D. P. 0000-0003-1964-5020","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":90765,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"D. P.","affiliations":[],"preferred":false,"id":420726,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":420725,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Burr, M.D.","contributorId":58450,"corporation":false,"usgs":true,"family":"Burr","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":420721,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Striegl, Robert G. 0000-0002-8251-4659 rstriegl@usgs.gov","orcid":"https://orcid.org/0000-0002-8251-4659","contributorId":1630,"corporation":false,"usgs":true,"family":"Striegl","given":"Robert","email":"rstriegl@usgs.gov","middleInitial":"G.","affiliations":[{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":false,"id":420723,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70028970,"text":"70028970 - 2006 - Quantification of karst aquifer discharge components during storm events through end-member mixing analysis using natural chemistry and stable isotopes as tracers","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028970","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Quantification of karst aquifer discharge components during storm events through end-member mixing analysis using natural chemistry and stable isotopes as tracers","docAbstract":"Karst aquifer components that contribute to the discharge of a water supply well in the Classical Karst (Kras) region (Italy/Slovenia) were quantitatively estimated during storm events. Results show that water released from storage within the epikarst may comprise as much as two-thirds of conduit flow in a karst aquifer following rainfall. Principal components analysis (PCA) and end-member mixing analysis (EMMA) were performed using major ion chemistry and the stable isotopes of water (??18O, ??2H) and of dissolved inorganic carbon (??13CDIC) to estimate mixing proportions among three sources: (1) allogenic river recharge, (2) autogenic recharge, and (3) an anthropogenic component stored within the epikarst. The sinking river most influences the chemical composition of the water-supply well under low-flow conditions; however, this proportion changes rapidly during recharge events. Autogenic recharge water, released from shallow storage in the epikarst, displaces the river water and is observed at the well within hours after the onset of precipitation. The autogenic recharge end member is the second largest component of the well chemistry, and its contribution increases with higher flow. An anthropogenic component derived from epikarstic storage also impacts the well under conditions of elevated hydraulic head, accounting for the majority of the chemical response at the well during the wettest conditions. ?? Springer-Verlag 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrogeology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10040-006-0031-6","issn":"14312174","usgsCitation":"Doctor, D., Alexander, E., Petric, M., Kogovsek, J., Urbanc, J., Lojen, S., and Stichler, W., 2006, Quantification of karst aquifer discharge components during storm events through end-member mixing analysis using natural chemistry and stable isotopes as tracers: Hydrogeology Journal, v. 14, no. 7, p. 1171-1191, https://doi.org/10.1007/s10040-006-0031-6.","startPage":"1171","endPage":"1191","numberOfPages":"21","costCenters":[],"links":[{"id":236560,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209831,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10040-006-0031-6"}],"volume":"14","issue":"7","noUsgsAuthors":false,"publicationDate":"2006-07-11","publicationStatus":"PW","scienceBaseUri":"505a91ace4b0c8380cd803be","contributors":{"authors":[{"text":"Doctor, D.H. Jr.","contributorId":46752,"corporation":false,"usgs":true,"family":"Doctor","given":"D.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":420785,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alexander, E.C. Jr.","contributorId":94062,"corporation":false,"usgs":true,"family":"Alexander","given":"E.C.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":420789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Petric, M.","contributorId":74938,"corporation":false,"usgs":true,"family":"Petric","given":"M.","email":"","affiliations":[],"preferred":false,"id":420788,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kogovsek, J.","contributorId":51080,"corporation":false,"usgs":true,"family":"Kogovsek","given":"J.","email":"","affiliations":[],"preferred":false,"id":420786,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Urbanc, J.","contributorId":33512,"corporation":false,"usgs":true,"family":"Urbanc","given":"J.","email":"","affiliations":[],"preferred":false,"id":420783,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lojen, S.","contributorId":64012,"corporation":false,"usgs":true,"family":"Lojen","given":"S.","email":"","affiliations":[],"preferred":false,"id":420787,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stichler, W.","contributorId":39569,"corporation":false,"usgs":true,"family":"Stichler","given":"W.","email":"","affiliations":[],"preferred":false,"id":420784,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70028960,"text":"70028960 - 2006 - Phylogeography and spatial genetic structure of the Southern torrent salamander: Implications for conservation and management","interactions":[],"lastModifiedDate":"2017-11-15T14:29:11","indexId":"70028960","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2333,"text":"Journal of Heredity","active":true,"publicationSubtype":{"id":10}},"title":"Phylogeography and spatial genetic structure of the Southern torrent salamander: Implications for conservation and management","docAbstract":"The Southern torrent salamander (Rhyacotriton variegatus) was recently found not warranted for listing under the US Endangered Species Act due to lack of information regarding population fragmentation and gene flow. Found in small-order streams associated with late-successional coniferous forests of the US Pacific Northwest, threats to their persistence include disturbance related to timber harvest activities. We conducted a study of genetic diversity throughout this species' range to 1) identify major phylogenetic lineages and phylogeographic barriers and 2) elucidate regional patterns of population genetic and spatial phylogeographic structure. Cytochrome b sequence variation was examined for 189 individuals from 72 localities. We identified 3 major lineages corresponding to nonoverlapping geographic regions: a northern California clade, a central Oregon clade, and a northern Oregon clade. The Yaquina River may be a phylogeographic barrier between the northern Oregon and central Oregon clades, whereas the Smith River in northern California appears to correspond to the discontinuity between the central Oregon and northern California clades. Spatial analyses of genetic variation within regions encompassing major clades indicated that the extent of genetic structure is comparable among regions. We discuss our results in the context of conservation efforts for Southern torrent salamanders. ?? The American Genetic Association. 2006. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Heredity","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1093/jhered/esl038","issn":"00221503","usgsCitation":"Miller, M., Haig, S.M., and Wagner, R., 2006, Phylogeography and spatial genetic structure of the Southern torrent salamander: Implications for conservation and management: Journal of Heredity, v. 97, no. 6, p. 561-570, https://doi.org/10.1093/jhered/esl038.","startPage":"561","endPage":"570","numberOfPages":"10","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":477478,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/jhered/esl038","text":"Publisher Index Page"},{"id":236492,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209782,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1093/jhered/esl038"}],"volume":"97","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-11-29","publicationStatus":"PW","scienceBaseUri":"505a7a5ce4b0c8380cd78e89","contributors":{"authors":[{"text":"Miller, M.P.","contributorId":47142,"corporation":false,"usgs":true,"family":"Miller","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":420728,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, S. M. 0000-0002-6616-7589","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":55389,"corporation":false,"usgs":true,"family":"Haig","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":420729,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wagner, R.S.","contributorId":57427,"corporation":false,"usgs":true,"family":"Wagner","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":420730,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028969,"text":"70028969 - 2006 - Large-scale movements and habitat characteristics of king eiders throughout the nonbreeding period","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70028969","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Large-scale movements and habitat characteristics of king eiders throughout the nonbreeding period","docAbstract":"King Eiders (Somateria spectabilis) breeding in western Canada and Alaska molt wing feathers and spend the winter in remote areas of the Bering Sea, precluding direct observation. To characterize timing of migration and habitat used by King Eiders during the nonbreeding period, we collected location data for 60 individuals (27 females and 33 males) over three years from satellite telemetry and utilized oceanographic information obtained by remote sensing. Male King Eiders dispersed from breeding areas, arrived at wing molt sites, and dispersed from wing molt sites earlier than females in all years. Males arriving earlier at wing molt sites molted flight feathers at higher latitudes. Distributions of molt and winter locations did not differ by sex or among years. Of the variables considered for analysis, distance to shore, water depth, and salinity appeared to best describe King Eider habitat throughout the nonbreeding period. King Eiders were located closer to shore, in shallower water with lower salinity than random locations. During the winter, lower ice concentrations were also associated with King Eider locations. This study provides some of the first large-scale descriptions of King Eider migration and habitat outside the breeding season. ?? The Cooper Ornithological Society 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Condor","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1650/0010-5422(2006)108[887:LMAHCO]2.0.CO;2","issn":"00105422","usgsCitation":"Phillips, L.M., Powell, A., and Rexstad, E., 2006, Large-scale movements and habitat characteristics of king eiders throughout the nonbreeding period: Condor, v. 108, no. 4, p. 887-900, https://doi.org/10.1650/0010-5422(2006)108[887:LMAHCO]2.0.CO;2.","startPage":"887","endPage":"900","numberOfPages":"14","costCenters":[],"links":[{"id":209807,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1650/0010-5422(2006)108[887:LMAHCO]2.0.CO;2"},{"id":236528,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"108","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a449ce4b0c8380cd66c52","contributors":{"authors":[{"text":"Phillips, Laura M.","contributorId":49497,"corporation":false,"usgs":false,"family":"Phillips","given":"Laura","email":"","middleInitial":"M.","affiliations":[{"id":7211,"text":"University of Alaska, Fairbanks","active":true,"usgs":false}],"preferred":false,"id":420781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powell, A.N.","contributorId":66194,"corporation":false,"usgs":true,"family":"Powell","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":420782,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rexstad, E.A.","contributorId":47063,"corporation":false,"usgs":true,"family":"Rexstad","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":420780,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028956,"text":"70028956 - 2006 - Seismic evidence for rock damage and healing on the San Andreas fault associated with the 2004 M 6.0 Parkfield earthquake","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70028956","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Seismic evidence for rock damage and healing on the San Andreas fault associated with the 2004 M 6.0 Parkfield earthquake","docAbstract":"We deployed a dense linear array of 45 seismometers across and along the San Andreas fault near Parkfield a week after the M 6.0 Parkfield earthquake on 28 September 2004 to record fault-zone seismic waves generated by aftershocks and explosions. Seismic stations and explosions were co-sited with our previous experiment conducted in 2002. The data from repeated shots detonated in the fall of 2002 and 3 months after the 2004 M 6.0 mainshock show ???1.0%-1.5% decreases in seismic-wave velocity within an ???200-m-wide zone along the fault strike and smaller changes (0.2%-0.5%) beyond this zone, most likely due to the coseismic damage of rocks during dynamic rupture in the 2004 M 6.0 earthquake. The width of the damage zone characterized by larger velocity changes is consistent with the low-velocity waveguide model on the San Andreas fault, near Parkfield, that we derived from fault-zone trapped waves (Li et al., 2004). The damage zone is not symmetric but extends farther on the southwest side of the main fault trace. Waveform cross-correlations for repeated aftershocks in 21 clusters, with a total of ???130 events, located at different depths and distances from the array site show ???0.7%-1.1% increases in S-wave velocity within the fault zone in 3 months starting a week after the earthquake. The velocity recovery indicates that the damaged rock has been healing and regaining the strength through rigidity recovery with time, most likely . due to the closure of cracks opened during the mainshock. We estimate that the net decrease in seismic velocities within the fault zone was at least ???2.5%, caused by the 2004 M 6.0 Parkfield earthquake. The healing rate was largest in the earlier stage of the postmainshock healing process. The magnitude of fault healing varies along the rupture zone, being slightly larger for the healing beneath Middle Mountain, correlating well with an area of large mapped slip. The fault healing is most prominent at depths above ???7 km.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050803","issn":"00371106","usgsCitation":"Li, Y., Chen, P., Cochran, E., Vidale, J., and Burdette, T., 2006, Seismic evidence for rock damage and healing on the San Andreas fault associated with the 2004 M 6.0 Parkfield earthquake: Bulletin of the Seismological Society of America, v. 96, no. 4 B, https://doi.org/10.1785/0120050803.","costCenters":[],"links":[{"id":209780,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050803"},{"id":236490,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"4 B","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8b0fe4b08c986b317564","contributors":{"authors":[{"text":"Li, Y.-G.","contributorId":39141,"corporation":false,"usgs":true,"family":"Li","given":"Y.-G.","affiliations":[],"preferred":false,"id":420711,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chen, P.","contributorId":12672,"corporation":false,"usgs":true,"family":"Chen","given":"P.","affiliations":[],"preferred":false,"id":420710,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cochran, E.S.","contributorId":74561,"corporation":false,"usgs":true,"family":"Cochran","given":"E.S.","email":"","affiliations":[],"preferred":false,"id":420714,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vidale, J.E.","contributorId":55849,"corporation":false,"usgs":true,"family":"Vidale","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":420712,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Burdette, T.","contributorId":62788,"corporation":false,"usgs":true,"family":"Burdette","given":"T.","email":"","affiliations":[],"preferred":false,"id":420713,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028961,"text":"70028961 - 2006 - Eco-informatics and natural resource management","interactions":[],"lastModifiedDate":"2018-08-13T10:11:44","indexId":"70028961","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Eco-informatics and natural resource management","docAbstract":"This project highlight reports on the 2004 workshop [1], as well as follow-up activities in 2005 and 2006, regarding how informatics tools can help manage natural resources and decide policy. The workshop was sponsored jointly by sponsored by the NSF, NBII, NASA, and EPA, and attended by practitioners from government and non-government agencies, and university researchers from the computer, social, and ecological sciences. The workshop presented the significant information technology (IT) problems that resource managers face when integrating ecological or environmental information to make decisions. These IT problems fall into five categories: data presentation, data gaps, tools, indicators, and policy making and implementation. To alleviate such problems, we recommend informatics research in four IT areas, as defined in this abstract and our final report: modeling and simulation, data quality, information integration and ontologies, and social and human aspects. Additionally, we recommend that funding agencies provide infrastructure and some changes in funding habits to assure cycles of innovation in the domain were addressed. Follow-on activities to the workshop subsequent to dg.o 2005 included: an invited talk presenting workshop results at DILS 2005, publication of the workshop final report by the NBII [1], and a poster at the NBII All Hands Meeting (Oct. 2005). We also expect a special issue of the JIIS to appear in 2006 that addresses some of these questions. As we go to press, no solicitation by funding agencies has as yet been published, but various NASA and NBII, and NSF cyber-infrastructure and DG research efforts now underway address the above issues.","largerWorkTitle":"ACM International Conference Proceeding Series","conferenceTitle":"7th Annual International Conference on Digital Government Research, Dg.o 2006","conferenceDate":"21 May 2006 through 24 May 2006","conferenceLocation":"San Diego, CA","language":"English","doi":"10.1145/1146598.1146712","usgsCitation":"Cushing, J., Wilson, T., Borning, A., Delcambre, L., Bowker, G., Frame, M., Schnase, J., Sonntag, W., Fulop, J., Hert, C., Hovy, E., Jones, J., Landis, E., Schweik, C., Brandt, L., Gregg, V., and Spengler, S., 2006, Eco-informatics and natural resource management, <i>in</i> ACM International Conference Proceeding Series, v. 151, San Diego, CA, 21 May 2006 through 24 May 2006, p. 381-382, https://doi.org/10.1145/1146598.1146712.","productDescription":"2 p.","startPage":"381","endPage":"382","costCenters":[{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true}],"links":[{"id":236493,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209783,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1145/1146598.1146712"}],"volume":"151","noUsgsAuthors":false,"publicationDate":"2006-05-21","publicationStatus":"PW","scienceBaseUri":"505a053ae4b0c8380cd50cf4","contributors":{"authors":[{"text":"Cushing, J.B.","contributorId":52382,"corporation":false,"usgs":true,"family":"Cushing","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":420739,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, T.","contributorId":49581,"corporation":false,"usgs":true,"family":"Wilson","given":"T.","affiliations":[],"preferred":false,"id":420737,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Borning, A.","contributorId":88545,"corporation":false,"usgs":true,"family":"Borning","given":"A.","email":"","affiliations":[],"preferred":false,"id":420742,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Delcambre, L.","contributorId":42011,"corporation":false,"usgs":true,"family":"Delcambre","given":"L.","email":"","affiliations":[],"preferred":false,"id":420736,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bowker, G.","contributorId":107482,"corporation":false,"usgs":true,"family":"Bowker","given":"G.","email":"","affiliations":[],"preferred":false,"id":420747,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Frame, Mike 0000-0001-9995-2172 mike_frame@usgs.gov","orcid":"https://orcid.org/0000-0001-9995-2172","contributorId":4541,"corporation":false,"usgs":true,"family":"Frame","given":"Mike","email":"mike_frame@usgs.gov","affiliations":[{"id":208,"text":"Core Science Analytics and Synthesis","active":true,"usgs":true}],"preferred":true,"id":420738,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schnase, J.","contributorId":36736,"corporation":false,"usgs":true,"family":"Schnase","given":"J.","affiliations":[],"preferred":false,"id":420735,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Sonntag, W.","contributorId":65272,"corporation":false,"usgs":true,"family":"Sonntag","given":"W.","affiliations":[],"preferred":false,"id":420741,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Fulop, J.","contributorId":9836,"corporation":false,"usgs":true,"family":"Fulop","given":"J.","email":"","affiliations":[],"preferred":false,"id":420731,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hert, C.","contributorId":59227,"corporation":false,"usgs":true,"family":"Hert","given":"C.","email":"","affiliations":[],"preferred":false,"id":420740,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hovy, E.","contributorId":104269,"corporation":false,"usgs":true,"family":"Hovy","given":"E.","email":"","affiliations":[],"preferred":false,"id":420746,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Jones, J.","contributorId":102256,"corporation":false,"usgs":true,"family":"Jones","given":"J.","affiliations":[],"preferred":false,"id":420745,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Landis, E.","contributorId":92846,"corporation":false,"usgs":true,"family":"Landis","given":"E.","email":"","affiliations":[],"preferred":false,"id":420743,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Schweik, C.","contributorId":26126,"corporation":false,"usgs":true,"family":"Schweik","given":"C.","email":"","affiliations":[],"preferred":false,"id":420733,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Brandt, L.","contributorId":24548,"corporation":false,"usgs":true,"family":"Brandt","given":"L.","email":"","affiliations":[],"preferred":false,"id":420732,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Gregg, V.","contributorId":28421,"corporation":false,"usgs":true,"family":"Gregg","given":"V.","email":"","affiliations":[],"preferred":false,"id":420734,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Spengler, S.","contributorId":93259,"corporation":false,"usgs":true,"family":"Spengler","given":"S.","email":"","affiliations":[],"preferred":false,"id":420744,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}}
,{"id":70028966,"text":"70028966 - 2006 - New geographic records of Hamlets, Hypoplectrus spp. (Serranidae), in the Caribbean Sea","interactions":[],"lastModifiedDate":"2020-09-10T16:19:22.314637","indexId":"70028966","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3290,"text":"Revista de Biología Tropical: International Journal of Tropical Biology and Conservation","onlineIssn":"2215-2075","printIssn":"0034-7744","active":true,"publicationSubtype":{"id":10}},"displayTitle":"New geographic records of Hamlets, <i>Hypoplectrus</i> spp. (Serranidae), in the Caribbean Sea","title":"New geographic records of Hamlets, Hypoplectrus spp. (Serranidae), in the Caribbean Sea","docAbstract":"<p><span>The exact number of species of hamlets,&nbsp;</span><i>Hypoplectrus</i><span><span>&nbsp;</span>spp., in the Caribbean is controversial and the geographic distributions of these species/forms are poorly documented. We report Curaçao, Netherlands Antilles, as a new locality for the Barred Hamlet,<span>&nbsp;</span></span><i>H. puella</i><span><span>&nbsp;</span>(Cuvier), and Shy Hamlet,<span>&nbsp;</span></span><i>H. guttavarius</i><span><span>&nbsp;</span>(Poey); and St. John and St. Thomas, U.S. Virgin Islands, for the Tan Hamlet,<span>&nbsp;</span></span><i>Hypoplectrus</i><span><span>&nbsp;</span>sp. The Black Hamlet,<span>&nbsp;</span></span><i>H. nigricans</i><span><span>&nbsp;</span>(Poey), has previously been reported from Curaçao, but we did not see it there.</span></p>","language":"English","publisher":"Universidad de Costa Rica","publisherLocation":"San José, Costa Rica","usgsCitation":"Williams, E.H., Bunkley-Williams, L., Rogers, C.S., and Fenner, R., 2006, New geographic records of Hamlets, Hypoplectrus spp. (Serranidae), in the Caribbean Sea: Revista de Biología Tropical: International Journal of Tropical Biology and Conservation, v. 54, no. Supplement 3, p. 171-173.","productDescription":"3 p.","startPage":"171","endPage":"173","costCenters":[],"links":[{"id":236559,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":352919,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://revistas.ucr.ac.cr/index.php/rbt/article/view/26911"}],"country":"Curacao","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -69.2083740234375,\n              11.990965150182246\n            ],\n            [\n              -68.7139892578125,\n              11.990965150182246\n            ],\n            [\n              -68.7139892578125,\n              12.409753820104937\n            ],\n            [\n              -69.2083740234375,\n              12.409753820104937\n            ],\n            [\n              -69.2083740234375,\n              11.990965150182246\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"54","issue":"Supplement 3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6588e4b0c8380cd72c02","contributors":{"authors":[{"text":"Williams, Ernest H. Jr.","contributorId":124593,"corporation":false,"usgs":false,"family":"Williams","given":"Ernest","suffix":"Jr.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":420765,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bunkley-Williams, Lucy","contributorId":103628,"corporation":false,"usgs":false,"family":"Bunkley-Williams","given":"Lucy","email":"","affiliations":[],"preferred":false,"id":420768,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rogers, Caroline S. 0000-0001-9056-6961 caroline_rogers@usgs.gov","orcid":"https://orcid.org/0000-0001-9056-6961","contributorId":3126,"corporation":false,"usgs":true,"family":"Rogers","given":"Caroline","email":"caroline_rogers@usgs.gov","middleInitial":"S.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":420766,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fenner, Robert","contributorId":124589,"corporation":false,"usgs":false,"family":"Fenner","given":"Robert","email":"","affiliations":[],"preferred":false,"id":420767,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028590,"text":"70028590 - 2006 - Tidal saltmarsh fragmentation and persistence of San Pablo Song Sparrows (Melospiza melodia samuelis): Assessing benefits of wetland restoration in San Francisco Bay","interactions":[],"lastModifiedDate":"2017-08-26T16:38:15","indexId":"70028590","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3489,"text":"Studies in Avian Biology","active":true,"publicationSubtype":{"id":10}},"title":"Tidal saltmarsh fragmentation and persistence of San Pablo Song Sparrows (Melospiza melodia samuelis): Assessing benefits of wetland restoration in San Francisco Bay","docAbstract":"The San Pablo Song Sparrow (Melospiza melodia samuelis) is one of three morphologically distinct Song Sparrow subspecies in tidal marshes of the San Francisco Bay estuary. These subspecies are rare, because as the human population has grown, diking and development have resulted in loss of 79% of the historic tidal marshes. Hundreds of projects have been proposed in the past decade to restore tidal marshes and benefit endemic populations. To evaluate the value of these restoration projects for Song Sparrows, we developed a population viability analysis (PVA) model to examine persistence of samuelis subspecies in relation to parcel size, connectivity, and catastrophe in San Pablo Bay. A total of 101 wetland parcels were identified from coverages of modern and historic tidal marshes. Parcels were grouped into eight fragments in the historical landscape and 10 in the present landscape. Fragments were defined as a group of parcels separated by >1 km, a distance that precluded regular interchange. Simulations indicated that the historic (circa 1850) samuelis population was three times larger than the modern population. However, only very high levels (>70% mortality) of catastrophe would threaten their persistence. Persistence of populations was sensitive to parcel size at a carrying capacity of <10 pairs, but connectivity of parcels was found to have little importance because habitats were dominated by a few large parcels. Our analysis indicates little risk of extinction of the samuelis subspecies with the current extent of tidal marshes, but the vulnerability of the small-est parcels suggests that restoration should create larger continuous tracts. Thus, PVA models may be useful tools for balancing the costs and benefits of restoring habitats for threatened tidal-marsh populations in wetland restoration planning.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Studies in Avian Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01979922","isbn":"0943610702; 9780943610702","usgsCitation":"Takekawa, J.Y., Sacks, B., Woo, I., Johnson, M., and Wylie, G., 2006, Tidal saltmarsh fragmentation and persistence of San Pablo Song Sparrows (Melospiza melodia samuelis): Assessing benefits of wetland restoration in San Francisco Bay: Studies in Avian Biology, no. 32, p. 238-246.","startPage":"238","endPage":"246","numberOfPages":"9","costCenters":[],"links":[{"id":236326,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"32","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb37ae4b08c986b325ded","contributors":{"editors":[{"text":"Greenberg R.Maldonado J.E.Droege S.McDonald M.V.","contributorId":128314,"corporation":true,"usgs":false,"organization":"Greenberg R.Maldonado J.E.Droege S.McDonald M.V.","id":536637,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Takekawa, John Y. 0000-0003-0217-5907 john_takekawa@usgs.gov","orcid":"https://orcid.org/0000-0003-0217-5907","contributorId":176168,"corporation":false,"usgs":true,"family":"Takekawa","given":"John","email":"john_takekawa@usgs.gov","middleInitial":"Y.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":418747,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sacks, B.N.","contributorId":64431,"corporation":false,"usgs":true,"family":"Sacks","given":"B.N.","affiliations":[],"preferred":false,"id":418748,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Woo, I.","contributorId":45861,"corporation":false,"usgs":true,"family":"Woo","given":"I.","email":"","affiliations":[],"preferred":false,"id":418746,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, M.L.","contributorId":39525,"corporation":false,"usgs":true,"family":"Johnson","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":418745,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wylie, G.D.","contributorId":68238,"corporation":false,"usgs":true,"family":"Wylie","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":418749,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028532,"text":"70028532 - 2006 - Fast simulated annealing inversion of surface waves on pavement using phase-velocity spectra","interactions":[],"lastModifiedDate":"2012-03-12T17:20:59","indexId":"70028532","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Fast simulated annealing inversion of surface waves on pavement using phase-velocity spectra","docAbstract":"The conventional inversion of surface waves depends on modal identification of measured dispersion curves, which can be ambiguous. It is possible to avoid mode-number identification and extraction by inverting the complete phase-velocity spectrum obtained from a multichannel record. We use the fast simulated annealing (FSA) global search algorithm to minimize the difference between the measured phase-velocity spectrum and that calculated from a theoretical layer model, including the field setup geometry. Results show that this algorithm can help one avoid getting trapped in local minima while searching for the best-matching layer model. The entire procedure is demonstrated on synthetic and field data for asphalt pavement. The viscoelastic properties of the top asphalt layer are taken into account, and the inverted asphalt stiffness as a function of frequency compares well with laboratory tests on core samples. The thickness and shear-wave velocity of the deeper embedded layers are resolved within 10% deviation from those values measured separately during pavement construction. The proposed method may be equally applicable to normal soil site investigation and in the field of ultrasonic testing of materials. ?? 2006 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.2204964","issn":"00168033","usgsCitation":"Ryden, N., and Park, C., 2006, Fast simulated annealing inversion of surface waves on pavement using phase-velocity spectra: Geophysics, v. 71, no. 4, https://doi.org/10.1190/1.2204964.","costCenters":[],"links":[{"id":209730,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.2204964"},{"id":236426,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0efde4b0c8380cd536ee","contributors":{"authors":[{"text":"Ryden, N.","contributorId":23318,"corporation":false,"usgs":true,"family":"Ryden","given":"N.","email":"","affiliations":[],"preferred":false,"id":418484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Park, C.B.","contributorId":21714,"corporation":false,"usgs":true,"family":"Park","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":418483,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028455,"text":"70028455 - 2006 - Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:20:41","indexId":"70028455","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1968,"text":"Ichthyological Exploration of Freshwaters","active":true,"publicationSubtype":{"id":10}},"title":"Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico","docAbstract":"We evaluated the relationship between limnetic characteristics and fish community structure (based on species richness, abundance and individual size) in contrasting but interconnected inland aquatic habitats of freshwater karstic wetlands in the Yucatan peninsula, Mexico. In the western hemisphere, freshwater karstic wetlands are found in south-eastern Mexico, northern Belize, western Cuba, Andros Island, Bahamas and the Everglades of southern Florida. Only in the Everglades have fish communities been well described. Karstic wetlands are typically oligotrophic because calcium carbonate binds phosphorus, making it relatively unavailable for plants. Fourteen permanent and seasonally flooded water bodies were sampled in both wet and dry seasons in Sian Ka'an Biosphere Reserve, in the Mexican state of Quintana Roo. Water systems were divided by morphology in four groups: cenotes with vegetation (CWV), cenotes without vegetation (CNV), wetlands (WTL), and temporal cenotes (TPC). Discriminant analysis based on physical characteristics such as turbidity, temperature, depth and oxygen confirmed that these habitats differed in characteristics known to influence fish communities. A sample-based rarefaction test showed that species richness was significantly different between water systems groups, showing that WTL and CWV had higher richness values than CNV and TPC. The most abundant fish families, Poeciliidae, Cichlidae and Characidae, differed significantly in average size among habitats and seasons. Seasonal and inter-annual variation, reflecting temporal variation in rainfall, strongly influenced the environmental differences between shallow and deep habitats, which could be linked to fish size and life cycles. Five new records of species were found for the reserve, and one new record for Quintana Roo state. ?? 2006 by Verlag Dr. Friedrich Pfeil.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ichthyological Exploration of Freshwaters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"09369902","usgsCitation":"Zambrano, L., Vazquez-Dominguez, E., Garcia-Bedoya, D., Loftus, W., and Trexler, J., 2006, Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico: Ichthyological Exploration of Freshwaters, v. 17, no. 3, p. 193-206.","startPage":"193","endPage":"206","numberOfPages":"14","costCenters":[],"links":[{"id":236827,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a108be4b0c8380cd53cf9","contributors":{"authors":[{"text":"Zambrano, L.","contributorId":17034,"corporation":false,"usgs":true,"family":"Zambrano","given":"L.","email":"","affiliations":[],"preferred":false,"id":418126,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vazquez-Dominguez, E.","contributorId":10600,"corporation":false,"usgs":true,"family":"Vazquez-Dominguez","given":"E.","affiliations":[],"preferred":false,"id":418125,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garcia-Bedoya, D.","contributorId":42771,"corporation":false,"usgs":true,"family":"Garcia-Bedoya","given":"D.","email":"","affiliations":[],"preferred":false,"id":418129,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Loftus, W.F.","contributorId":29363,"corporation":false,"usgs":true,"family":"Loftus","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":418128,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Trexler, J.C.","contributorId":23108,"corporation":false,"usgs":true,"family":"Trexler","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":418127,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028556,"text":"70028556 - 2006 - Multiple edifice-collapse events in the Eastern Mexican Volcanic Belt: The role of sloping substrate and implications for hazard assessment","interactions":[],"lastModifiedDate":"2012-03-12T17:20:55","indexId":"70028556","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Multiple edifice-collapse events in the Eastern Mexican Volcanic Belt: The role of sloping substrate and implications for hazard assessment","docAbstract":"The Citlalte??petl-Cofre de Perote volcanic chain forms an important physiographic barrier that separates the Central Altiplano (2500??masl) from the Gulf Coastal Plain (GCP) (1300??masl). The abrupt eastward drop in relief between these provinces gives rise to unstable conditions and consequent gravitational collapse of large volcanic edifices built at the edge of the Altiplano. Eastward sloping substrate, caused by the irregular configuration of the basement rocks, is the dominant factor that controls the direction of collapsing sectors in all major volcanoes in the region to be preferentially towards the GCP. These collapses produced voluminous debris avalanches and lahars that inundated the well-developed drainages and clastic aprons that characterize the Coastal Plain. Large catastrophic collapses from Citlalte??petl, Las Cumbres, and Cofre de Perote volcanoes are well documented in the geologic record. Some of the avalanches and transformed flows have exceptionally long runouts and reach the Gulf of Mexico traveling more than 120??km from their source. So far, no direct evidence has been found for magmatic activity associated with the initiation of these catastrophic flank-collapses. Apparently, instability of the volcanic edifices has been strongly favored by very intense hydrothermal alteration, abrupt topographic change, and intense fracturing. In addition to the eastward slope of the substrate, the reactivation of pre-volcanic basement structures during the Late Tertiary, and the E-W to ENE-SSW oriented regional stress regimes may have played an important role in the preferential movement direction of the avalanches and flows. In addition to magmatic-hydrothermal processes, high amounts of rainfall in the area is another factor that enhances alteration and eventually weakens the rocks. It is very likely that seismic activity may be the principal triggering mechanism that caused the flank collapse of large volcanic edifices in the Eastern Mexican Volcanic Belt. However, critical pore water pressure from extraordinary amounts of rainfall associated with hurricanes or other meteorological perturbation cannot be ruled out, particularly for smaller volume collapses. There are examples in the area of small seismogenic debris flows that have occurred in historical times, showing that these processes are not uncommon. Assessing the stability conditions of major volcanic edifices that have experienced catastrophic sector collapses is crucial for forecasting future events. This is particularly true for the Eastern Mexican Volcanic Belt, where in many cases no magmatic activity was associated with the collapse. Therefore, edifice failure could occur again without any precursory warning. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jvolgeores.2006.04.025","issn":"03770273","usgsCitation":"Carrasco-Nunez, G., Diaz-Castellon, R., Siebert, L., Hubbard, B., Sheridan, M., and Rodriguez, S.R., 2006, Multiple edifice-collapse events in the Eastern Mexican Volcanic Belt: The role of sloping substrate and implications for hazard assessment: Journal of Volcanology and Geothermal Research, v. 158, no. 1-2, p. 151-176, https://doi.org/10.1016/j.jvolgeores.2006.04.025.","startPage":"151","endPage":"176","numberOfPages":"26","costCenters":[],"links":[{"id":209656,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jvolgeores.2006.04.025"},{"id":236324,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"158","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6065e4b0c8380cd71417","contributors":{"authors":[{"text":"Carrasco-Nunez, Gerardo","contributorId":44714,"corporation":false,"usgs":true,"family":"Carrasco-Nunez","given":"Gerardo","email":"","affiliations":[],"preferred":false,"id":418588,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Diaz-Castellon, Rodolfo","contributorId":37936,"corporation":false,"usgs":true,"family":"Diaz-Castellon","given":"Rodolfo","email":"","affiliations":[],"preferred":false,"id":418587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Siebert, Lee","contributorId":20475,"corporation":false,"usgs":false,"family":"Siebert","given":"Lee","affiliations":[{"id":12865,"text":"Smithsonian Institute","active":true,"usgs":false}],"preferred":false,"id":418584,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hubbard, B.","contributorId":7056,"corporation":false,"usgs":true,"family":"Hubbard","given":"B.","email":"","affiliations":[],"preferred":false,"id":418583,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sheridan, M.F.","contributorId":37926,"corporation":false,"usgs":true,"family":"Sheridan","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":418586,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rodriguez, Sergio R.","contributorId":35529,"corporation":false,"usgs":true,"family":"Rodriguez","given":"Sergio","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":418585,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1008578,"text":"1008578 - 2006 - Cooperative Manatee Research in Puerto Rico","interactions":[],"lastModifiedDate":"2012-02-02T00:04:39","indexId":"1008578","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1496,"text":"Endangered Species Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Cooperative Manatee Research in Puerto Rico","docAbstract":"Abstract not supplied at this time","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Endangered Species Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Reid, J.P., 2006, Cooperative Manatee Research in Puerto Rico: Endangered Species Bulletin, v. 31, no. 2, p. p 18-19.","productDescription":"pp. 18-19","startPage":"p 18","endPage":"19","numberOfPages":"20","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":132477,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db6864d0","contributors":{"authors":[{"text":"Reid, James P. 0000-0002-8497-1132 jreid@usgs.gov","orcid":"https://orcid.org/0000-0002-8497-1132","contributorId":3460,"corporation":false,"usgs":true,"family":"Reid","given":"James","email":"jreid@usgs.gov","middleInitial":"P.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":318138,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028125,"text":"70028125 - 2006 - Near real-time monitoring and mapping of specific conductivity levels across Lake Texoma, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028125","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"Near real-time monitoring and mapping of specific conductivity levels across Lake Texoma, USA","docAbstract":"A submersible sonde equipped with a specific conductivity probe, linked with a global positioning satellite receiver was developed, deployed on a small boat, and used to map spatial and temporal variations in specific conductivity in a large reservoir. 7,695 sample points were recorded during 8 sampling trips. Specific conductivity ranged from 442 uS/cm to 3,378 uS/cm over the nine-month study. The data showed five statistically different zones in the reservoir: 2 different riverine zones, 2 different riverine transition zones, and a lacustrine zone (the main lake zone). These data were imported to a geographic information system where they were spatially interpolated to generate 8 maps showing specific conductivity levels across the entire surface of the lake. The highly dynamic nature of water quality, due to the widely differing nature of the rivers that flow into the reservoir and the effect of large inflows of fresh water during winter storms is easily captured and visualized using this approach. ?? Springer Science+Business Media, Inc. 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-005-9072-x","issn":"01676369","usgsCitation":"Atkinson, S., and Mabe, J., 2006, Near real-time monitoring and mapping of specific conductivity levels across Lake Texoma, USA: Environmental Monitoring and Assessment, v. 120, no. 1-3, p. 449-460, https://doi.org/10.1007/s10661-005-9072-x.","startPage":"449","endPage":"460","numberOfPages":"12","costCenters":[],"links":[{"id":210229,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-005-9072-x"},{"id":237089,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"120","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2006-06-02","publicationStatus":"PW","scienceBaseUri":"505a63d3e4b0c8380cd72704","contributors":{"authors":[{"text":"Atkinson, S.F.","contributorId":105902,"corporation":false,"usgs":true,"family":"Atkinson","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":416653,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mabe, J.A.","contributorId":47566,"corporation":false,"usgs":true,"family":"Mabe","given":"J.A.","affiliations":[],"preferred":false,"id":416652,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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