{"pageNumber":"148","pageRowStart":"3675","pageSize":"25","recordCount":11371,"records":[{"id":70174096,"text":"70174096 - 2007 - Viability criteria for steelhead of the south-central and southern California coast","interactions":[],"lastModifiedDate":"2016-08-24T11:02:45","indexId":"70174096","displayToPublicDate":"2007-07-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"seriesNumber":"NOAA-TM-NMFS-SWFSC-407","title":"Viability criteria for steelhead of the south-central and southern California coast","docAbstract":"

Recovery planning for threatened and endangered steelhead requires measurable, objective criteria for determining an acceptably low risk of extinction. Here we propose viability criteria for two levels of biological organization: individual populations, and groups of populations within the SouthCentral/Southern California Coast Steelhead Recovery Planning Domain. For populations, we adapt criteria commonly used by the IUCN (The World Conservation Union) for identifying at-risk species. For groups of populations we implement a diversity-based “representation and redundancy rule,” in which diversity includes both life-history diversity and biogeographic groupings of populations. The resulting criteria have the potential for straightforward assessment of the risks posed by evolutionary, demographic, environmental, and catastrophic factors; and are designed to use data that are readily collected. However, our prescriptive approach led to one criterion whose threshold could not yet be specified due to inadequate data, and others in which the simplicity of the criteria may render them inefficient for populations with stable run sizes or stable life-history polymorphisms. Both of these problems could likely be solved by directed programs of research and monitoring aimed at developing more efficient (but equally risk-averse) “performance-based criteria.” Of particular utility would be data on the natural fluctuations of populations, research into the stabilizing influence of life-history polymorphisms, and research on the implications of drought, wildfires, and fluvial sediment regimes. Research on estuarine habitat could also yield useful information on the generality and reliability of its role as nursery habitat. Currently, risk assessment at the population level is not possible due to data deficiency, highlighting the need to implement a comprehensive effort to monitor run sizes, anadromous fractions, spawner densities and perhaps marine survival. Assessment at the group level indicates a priority for securing inland populations in the southern Coast Ranges and Transverse Ranges, and a need to maintain not just the fluvial-anadromous life-history form, but also lagoon-anadromous and freshwater-resident forms in each population.

","largerWorkTitle":"NOAA Technical Memorandum NMFS","language":"English","publisher":"National Marine Fisheries Service, NOAA","usgsCitation":"Boughton, D.A., Adams, P.B., Anderson, E., Fusaro, C., Keller, E.A., Kelley, E., Lentsch, L., Nielsen, J.L., Perry, K., Regan, H., Smith, J., Swift, C.C., Thompson, L., and Watson, F., 2007, Viability criteria for steelhead of the south-central and southern California coast (July 2007), 34 p.","productDescription":"34 p.","startPage":"1","endPage":"33","numberOfPages":"41","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":324473,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"edition":"July 2007","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57724e36e4b07657d1a819e2","contributors":{"authors":[{"text":"Boughton, David A.","contributorId":172477,"corporation":false,"usgs":false,"family":"Boughton","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":640878,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, Peter B.","contributorId":172478,"corporation":false,"usgs":false,"family":"Adams","given":"Peter","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":640879,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, Eric","contributorId":168940,"corporation":false,"usgs":false,"family":"Anderson","given":"Eric","affiliations":[],"preferred":false,"id":640880,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fusaro, Craig","contributorId":172479,"corporation":false,"usgs":false,"family":"Fusaro","given":"Craig","email":"","affiliations":[],"preferred":false,"id":640881,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Keller, Edward A.","contributorId":106598,"corporation":false,"usgs":true,"family":"Keller","given":"Edward","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":640882,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kelley, Elsie","contributorId":172480,"corporation":false,"usgs":false,"family":"Kelley","given":"Elsie","email":"","affiliations":[],"preferred":false,"id":640883,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lentsch, Leo","contributorId":172481,"corporation":false,"usgs":false,"family":"Lentsch","given":"Leo","email":"","affiliations":[],"preferred":false,"id":640884,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Nielsen, Jennifer L.","contributorId":43722,"corporation":false,"usgs":true,"family":"Nielsen","given":"Jennifer","email":"","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":640885,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Perry, Katie","contributorId":172482,"corporation":false,"usgs":false,"family":"Perry","given":"Katie","email":"","affiliations":[],"preferred":false,"id":640886,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Regan, Helen","contributorId":172483,"corporation":false,"usgs":false,"family":"Regan","given":"Helen","affiliations":[],"preferred":false,"id":640887,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Smith, Jerry","contributorId":172484,"corporation":false,"usgs":false,"family":"Smith","given":"Jerry","email":"","affiliations":[],"preferred":false,"id":640888,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Swift, Camm C.","contributorId":139395,"corporation":false,"usgs":false,"family":"Swift","given":"Camm","email":"","middleInitial":"C.","affiliations":[{"id":12725,"text":"Natural History Museum of Los Angeles County","active":true,"usgs":false}],"preferred":false,"id":640889,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Thompson, Lisa","contributorId":172485,"corporation":false,"usgs":false,"family":"Thompson","given":"Lisa","affiliations":[],"preferred":false,"id":640890,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Watson, Fred","contributorId":172486,"corporation":false,"usgs":false,"family":"Watson","given":"Fred","email":"","affiliations":[],"preferred":false,"id":640891,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":80035,"text":"sir20075039 - 2007 - Undiscovered locatable mineral resources in the Bay Resource Management Plan Area, southwestern Alaska: A probabilistic assessment","interactions":[],"lastModifiedDate":"2024-10-30T21:18:54.519292","indexId":"sir20075039","displayToPublicDate":"2007-06-19T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5039","title":"Undiscovered locatable mineral resources in the Bay Resource Management Plan Area, southwestern Alaska: A probabilistic assessment","docAbstract":"The Bay Resource Management Plan (RMP) area in southwestern Alaska, north and northeast of Bristol Bay contains significant potential for undiscovered locatable mineral resources of base and precious metals, in addition to metallic mineral deposits that are already known. A quantitative probabilistic assessment has identified 24 tracts of land that are permissive for 17 mineral deposit model types likely to be explored for within the next 15 years in this region. Commodities we discuss in this report that have potential to occur in the Bay RMP area are Ag, Au, Cr, Cu, Fe, Hg, Mo, Pb, Sn, W, Zn, and platinum-group elements. Geoscience data for the region are sufficient to make quantitative estimates of the number of undiscovered deposits only for porphyry copper, epithermal vein, copper skarn, iron skarn, hot-spring mercury, placer gold, and placer platinum-deposit models. A description of a group of shallow- to intermediate-level intrusion-related gold deposits is combined with grade and tonnage data from 13 deposits of this type to provide a quantitative estimate of undiscovered deposits of this new type.\r\n\r\nWe estimate that significant resources of Ag, Au, Cu, Fe, Hg, Mo, Pb, and Pt occur in the Bay Resource Management Plan area in these deposit types. At the 10th percentile probability level, the Bay RMP area is estimated to contain 10,067 metric tons silver, 1,485 metric tons gold, 12.66 million metric tons copper, 560 million metric tons iron, 8,100 metric tons mercury, 500,000 metric tons molybdenum, 150 metric tons lead, and 17 metric tons of platinum in undiscovered deposits of the eight quantified deposit types. At the 90th percentile probability level, the Bay RMP area is estimated to contain 89 metric tons silver, 14 metric tons gold, 911,215 metric tons copper, 330,000 metric tons iron, 1 metric ton mercury, 8,600 metric tons molybdenum and 1 metric ton platinum in undiscovered deposits of the eight deposit types.\r\n\r\nOther commodities, which may occur in the Bay RMP area, include Cr, Sn, W, Zn, and other platinum-group elements such as Ir, Os, and Pd. We define 13 permissive tracts for 9 additional deposit model types. These are: Besshi- and Cyprus, and Kuroko-volcanogenic massive sulfides, hot spring gold, low sulfide gold veins, Mississippi-Valley Pb-Zn, tin greisen, zinc skarn and Alaskan-type zoned ultramafic platinum-group element deposits. Resources in undiscovered deposits of these nine types have not been quantified, and would be in addition to those in known deposits and the undiscovered resources listed above. Additional mineral resources also may occur in the Bay RMP area in deposit types, which were not considered here.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20075039","collaboration":"Prepared in cooperation with the U.S. Bureau of Land Management","usgsCitation":"Schmidt, J., Light, T., Drew, L., Wilson, F.H., Miller, M., and Saltus, R.W., 2007, Undiscovered locatable mineral resources in the Bay Resource Management Plan Area, southwestern Alaska: A probabilistic assessment: U.S. Geological Survey Scientific Investigations Report 2007-5039, vi, 50 p., https://doi.org/10.3133/sir20075039.","productDescription":"vi, 50 p.","additionalOnlineFiles":"Y","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"links":[{"id":192250,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9793,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5039/","linkFileType":{"id":5,"text":"html"}},{"id":463452,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81462.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -162,58 ], [ -162,61 ], [ -153,61 ], [ -153,58 ], [ -162,58 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a25e4b07f02db60f2cb","contributors":{"authors":[{"text":"Schmidt, J.M.","contributorId":97916,"corporation":false,"usgs":true,"family":"Schmidt","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":291536,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Light, T.D.","contributorId":66249,"corporation":false,"usgs":true,"family":"Light","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":291532,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Drew, L.J.","contributorId":69157,"corporation":false,"usgs":true,"family":"Drew","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":291533,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":291531,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Miller, Marti L. 0000-0003-0285-4942","orcid":"https://orcid.org/0000-0003-0285-4942","contributorId":89523,"corporation":false,"usgs":false,"family":"Miller","given":"Marti L.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":false,"id":291535,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Saltus, R. W.","contributorId":85588,"corporation":false,"usgs":true,"family":"Saltus","given":"R.","middleInitial":"W.","affiliations":[],"preferred":false,"id":291534,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":79980,"text":"pp1732C - 2007 - Geochemical and sulfur-isotopic signatures of volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska","interactions":[{"subject":{"id":79980,"text":"pp1732C - 2007 - Geochemical and sulfur-isotopic signatures of volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska","indexId":"pp1732C","publicationYear":"2007","noYear":false,"chapter":"C","title":"Geochemical and sulfur-isotopic signatures of volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska"},"predicate":"IS_PART_OF","object":{"id":79483,"text":"pp1732 - 2006 - Studies by the U.S. Geological Survey in Alaska, 2005","indexId":"pp1732","publicationYear":"2006","noYear":false,"title":"Studies by the U.S. Geological Survey in Alaska, 2005"},"id":1}],"isPartOf":{"id":79483,"text":"pp1732 - 2006 - Studies by the U.S. Geological Survey in Alaska, 2005","indexId":"pp1732","publicationYear":"2006","noYear":false,"title":"Studies by the U.S. Geological Survey in Alaska, 2005"},"lastModifiedDate":"2023-11-09T15:28:02.382585","indexId":"pp1732C","displayToPublicDate":"2007-05-26T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1732","chapter":"C","title":"Geochemical and sulfur-isotopic signatures of volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska","docAbstract":"Stratabound volcanogenic massive sulfide (VMS) deposits on Prince of Wales Island and vicinity, southeastern Alaska, occur in two volcanosedimentary sequences of Late Proterozoic through Cambrian and of Ordovician through Early Silurian age. This study presents geochemical data on sulfide-rich samples, in situ laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) of sulfide minerals, and sulfur-isotopic analyses of sulfides and sulfates (barite) for identifying and distinguishing between primary sea-floor signatures and later regional metamorphic overprints. These datasets are also used here in an attempt to discriminate the VMS deposits in the older Wales Group from those in the younger Moira Sound unit (new informal name). The Wales Group and its contained VMS deposits have been multiply deformed and metamorphosed from greenschist to amphibolite grade, whereas the Moira Sound unit and related VMS deposits are less deformed and generally less metamorphosed (lower to middle greenschist grade). Variations in the sulfide mineral assemblages and textures of the VMS deposits in both sequences reflect a combination of processes, including primary sea-floor mineralization and sub-sea-floor zone refining, followed by metamorphic recrystallization. Very coarse grained (>1 cm diam) sulfide minerals and abundant pyrrhotite are restricted to VMS deposits in a small area of the Wales Group, at Khayyam and Stumble-On, which record high-grade metamorphism of the sulfides.\r\n\r\nGeochemical and sulfur-isotopic data distinguish the VMS deposits in the Wales Group from those in the Moira Sound unit. Although base- and precious-metal contents vary widely in sulfide-rich samples from both sequences, samples from the Moira Sound generally have proportionately higher Ag contents relative to base metals and Au. In situ LA-ICP-MS analysis of trace elements in the sulfide minerals suggests that primary sea-floor hydrothermal signatures are preserved in some samples (for example, Mn, As, Sb, and Tl in pyrite from the Moira Sound unit), whereas in other samples the signatures are varyingly annealed, owing to metamorphic overprinting. A limited LA-ICP-MS database for sphalerite indicates that low-Fe sphalerite is preferentially associated with the most Au rich deposits, the Niblack and Nutkwa. Sulfur-isotopic values for sulfide minerals in the VMS deposits in the Wales Group range from 5.9 to 17.4 permil (avg 11.5?2.7 permil), about 5 to 6 permil higher than those in the Moira Sound unit, which range from -2.8 to 10.4 permil (avg 6.1?4.0 permil). This difference in 34Ssulfide values reflects a dominantly seawater sulfate source of the sulfides and is linked to the 34S values of contemporaneous seawater sulfate, which were slightly higher during the Late Proterozoic through Cambrian than during the Ordovician through Early Silurian.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Studies by the U.S. Geological Survey in Alaska, 2005 (Professional Paper 1732)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1732C","usgsCitation":"Slack, J.F., Shanks, W.C., Karl, S.M., Gemery, P.A., Bittenbender, P.E., and Ridley, W., 2007, Geochemical and sulfur-isotopic signatures of volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska: U.S. Geological Survey Professional Paper 1732, 37 p., https://doi.org/10.3133/pp1732C.","productDescription":"37 p.","onlineOnly":"Y","temporalStart":"2005-01-01","temporalEnd":"2005-12-31","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":422487,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81294.htm","linkFileType":{"id":5,"text":"html"}},{"id":9707,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/pp1732/pp1732c/index.html","linkFileType":{"id":5,"text":"html"}},{"id":190742,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Prince of Wales Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -134.3100325553265,\n 56.293699844091776\n ],\n [\n -134.3100325553265,\n 54.60862051577786\n ],\n [\n -131.7784042226089,\n 54.60862051577786\n ],\n [\n -131.7784042226089,\n 56.293699844091776\n ],\n [\n -134.3100325553265,\n 56.293699844091776\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae861","contributors":{"authors":[{"text":"Slack, John F. 0000-0001-6600-3130 jfslack@usgs.gov","orcid":"https://orcid.org/0000-0001-6600-3130","contributorId":1032,"corporation":false,"usgs":true,"family":"Slack","given":"John","email":"jfslack@usgs.gov","middleInitial":"F.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":291362,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanks, Wayne C. III","contributorId":53432,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":291365,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Karl, Susan M. 0000-0003-1559-7826 skarl@usgs.gov","orcid":"https://orcid.org/0000-0003-1559-7826","contributorId":502,"corporation":false,"usgs":true,"family":"Karl","given":"Susan","email":"skarl@usgs.gov","middleInitial":"M.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":291361,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gemery, Pamela A.","contributorId":105808,"corporation":false,"usgs":true,"family":"Gemery","given":"Pamela","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":291366,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bittenbender, Peter E.","contributorId":35017,"corporation":false,"usgs":true,"family":"Bittenbender","given":"Peter","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":291364,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ridley, W. Ian 0000-0001-6787-558X","orcid":"https://orcid.org/0000-0001-6787-558X","contributorId":17269,"corporation":false,"usgs":true,"family":"Ridley","given":"W. Ian","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291363,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":79948,"text":"ofr20071112 - 2007 - The National Assessment of Shoreline Change: A GIS compilation of vector cliff edges and associated cliff erosion data for the California coast","interactions":[],"lastModifiedDate":"2022-02-09T20:35:54.6061","indexId":"ofr20071112","displayToPublicDate":"2007-05-15T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1112","title":"The National Assessment of Shoreline Change: A GIS compilation of vector cliff edges and associated cliff erosion data for the California coast","docAbstract":"

The U.S. Geological Survey has generated a comprehensive data clearinghouse of digital vector cliff edges and associated rates of cliff retreat along the open-ocean California coast. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.

\n
\n

Cliff erosion is a chronic problem along many coastlines of the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information including rates and trends of coastal cliff retreat. There is also a critical need for these data to be consistent from one region to another. One objective of this work is to a develop standard, repeatable methodology for mapping and analyzing cliff edge retreat so that periodic, systematic, and internally consistent updates of cliff edge position and associated rates of erosion can be made at a national scale.

\n
\n

This data compilation for open-ocean cliff edges for the California coast is a separate, yet related study to Hapke and others, 2006 documenting shoreline change along sandy shorelines of the California coast, which is itself one in a series that includes the Gulf of Mexico and the Southeast Atlantic coast (Morton and others, 2004; Morton and Miller, 2005). Future reports and data compilations will include coverage of the Northeast U.S., the Great Lakes, Hawaii and Alaska. Cliff edge change is determined by comparing the positions of one historical cliff edge digitized from maps with a modern cliff edge derived from topographic LIDAR (light detection and ranging) surveys. Historical cliff edges for the California coast represent the 1920s-1930s time-period; the most recent cliff edge was delineated using data collected between 1998 and 2002. End-point rate calculations were used to evaluate rates of erosion between the two cliff edges. Please refer to our full report on cliff edge erosion along the California coastline at http://pubs.usgs.gov/of/2007/1133/ for additional information regarding methods and results (Hapke and others, 2007).

\n
\n

Data in this report are organized into downloadable layers by region (Northern, Central and Southern California) and are provided as vector datasets with accompanying metadata. Vector cliff edges may represent a compilation of data from one or more sources and the sources used are included in the dataset metadata. This project employs the Environmental Systems Research Institute's (ESRI) ArcGIS as it's Geographic Information System (GIS) mapping tool and contains several data layers (shapefiles) that are used to create a geographic view of the California coast. The vector data form a basemap comprising polygon and line themes that include a U.S. coastline (1:80,000), U.S. cities, and state boundaries.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071112","usgsCitation":"Hapke, C., Reid, D., and Borrelli, M., 2007, The National Assessment of Shoreline Change: A GIS compilation of vector cliff edges and associated cliff erosion data for the California coast (Version 1.1, revised Sep. 2008): U.S. Geological Survey Open-File Report 2007-1112, HTML Document, https://doi.org/10.3133/ofr20071112.","productDescription":"HTML Document","additionalOnlineFiles":"Y","costCenters":[{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":395726,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81259.htm"},{"id":190980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071112.PNG"},{"id":9668,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1112/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.87255859374999,\n 32.713355353177555\n ],\n [\n -117.3779296875,\n 33.669496972795535\n ],\n [\n -119.00390625,\n 34.470335121217474\n ],\n [\n -120.43212890625,\n 34.75966612466248\n ],\n [\n -120.87158203125,\n 35.71083783530009\n ],\n [\n -121.6845703125,\n 36.63316209558658\n ],\n [\n -121.640625,\n 37.020098201368114\n ],\n [\n -122.18994140624999,\n 37.47485808497102\n ],\n [\n -121.9482421875,\n 37.77071473849609\n ],\n [\n -122.49755859375,\n 38.34165619279595\n ],\n [\n -122.71728515624999,\n 38.18638677411551\n ],\n [\n -123.3984375,\n 39.027718840211605\n ],\n [\n -124.1455078125,\n 40.39676430557203\n ],\n [\n -123.68408203124999,\n 41.376808565702355\n ],\n [\n -124.01367187499999,\n 42.00032514831621\n ],\n [\n -124.91455078125,\n 41.95131994679697\n ],\n [\n -124.62890625,\n 40.195659093364654\n ],\n [\n -123.77197265625,\n 38.65119833229951\n ],\n [\n -123.06884765625,\n 37.70120736474139\n ],\n [\n -122.25585937500001,\n 36.721273880045004\n ],\n [\n -121.70654296874999,\n 35.746512259918504\n ],\n [\n -121.1572265625,\n 35.17380831799959\n ],\n [\n -120.82763671875,\n 34.470335121217474\n ],\n [\n -120.36621093749999,\n 33.797408767572485\n ],\n [\n -118.67431640625,\n 32.287132632616384\n ],\n [\n -116.87255859374999,\n 32.713355353177555\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.1, revised Sep. 2008","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b15b","contributors":{"authors":[{"text":"Hapke, Cheryl","contributorId":89846,"corporation":false,"usgs":true,"family":"Hapke","given":"Cheryl","affiliations":[],"preferred":false,"id":291257,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reid, David","contributorId":63888,"corporation":false,"usgs":true,"family":"Reid","given":"David","email":"","affiliations":[],"preferred":false,"id":291256,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Borrelli, Mark","contributorId":22862,"corporation":false,"usgs":true,"family":"Borrelli","given":"Mark","email":"","affiliations":[],"preferred":false,"id":291255,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":79949,"text":"ofr20071133 - 2007 - National assessment of shoreline change, part 4: Historical coastal cliff retreat along the California coast","interactions":[],"lastModifiedDate":"2022-02-04T22:19:24.405279","indexId":"ofr20071133","displayToPublicDate":"2007-05-15T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1133","title":"National assessment of shoreline change, part 4: Historical coastal cliff retreat along the California coast","docAbstract":"

Coastal cliff retreat, the landward migration of the cliff face, is a chronic problem along many rocky coastlines in the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding trends and rates of coastal cliff retreat. There is also a need for a comprehensive analysis of cliff retreat that is consistent from one coastal region to another. To meet these national needs, the U.S. Geological Survey is conducting an analysis of historical coastal cliff retreat along open-ocean rocky coastlines of the conterminous United States and parts of Hawaii, Alaska, and the Great Lakes. One purpose of this work is to develop standard repeatable methods for mapping and analyzing coastal cliff retreat so that periodic updates of coastal erosion can be made nationally that are systematic and internally consistent.

This report on the California Coast is an accompaniment to a report on long-term sandy shoreline change for California. This report summarizes the methods of analysis, interprets the results, and provides explanations regarding long-term rates of cliff retreat. Neither detailed background information on the National Assessment of Shoreline Change Project nor detailed descriptions of the geology and geomorphology of the California coastline are presented in this report. The reader is referred to the shoreline change report (Hapke et al., 2006) for this type of background information.

Cliff retreat evaluations are based on comparing one historical cliff edge digitized from maps, with a recent cliff edge interpreted from lidar (Light Detection and Ranging) topographic surveys. The historical cliff edges are from a period ranging from 1920-1930, whereas the lidar cliff edges are from either 1998 or 2002. Long-term (~70- year) rates of retreat are calculated using the two cliff edges. The rates of retreat presented in this report represent conditions from the 1930s to 1998, and are not intended for predicting future cliff edge positions or rates of retreat. Due to the geomorphology of much of California's rocky coast (high-relief, steep slopes with no defined cliff edge) as well as to gaps in both the historical maps and lidar data, we were able to derive two cliff edges and therefore calculate cliff retreat rates for a total of 353 km.

The average rate of coastal cliff retreat for the State of California was -0.3±0.2 m/yr, based on rates averaged from 17,653 individual transects measured throughout all areas of California's rocky coastline. The average amount of cliff retreat was 17.7 m over the 70-year time period of our analysis. Retreat rates were generally lowest in Southern California where coastal engineering projects have greatly altered the natural coastal system. California permits shoreline stabilization structures where homes, buildings or other community infrastructure are imminently threatened by erosion. While seawalls and/or riprap revetments have been constructed in all three sections of California, a larger proportion of the Southern California coast has been protected by engineering works, due, in part, to the larger population pressures in this area.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071133","usgsCitation":"Hapke, C.J., and Reid, D., 2007, National assessment of shoreline change, part 4: Historical coastal cliff retreat along the California coast: U.S. Geological Survey Open-File Report 2007-1133, vi, 51 p., https://doi.org/10.3133/ofr20071133.","productDescription":"vi, 51 p.","numberOfPages":"57","additionalOnlineFiles":"Y","costCenters":[{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":194715,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071133.jpg"},{"id":395504,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81260.htm"},{"id":9669,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1133/","linkFileType":{"id":5,"text":"html"}},{"id":293082,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1133/of2007-1133.pdf"}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.78466796875,\n 32.63937487360669\n ],\n [\n -117.88330078125,\n 34.361576287484176\n ],\n [\n -121.2451171875,\n 36.82687474287728\n ],\n [\n -122.32177734375,\n 38.44498466889473\n ],\n [\n -123.50830078125,\n 39.33429742980725\n ],\n [\n -123.72802734375,\n 42.049292638686836\n ],\n [\n -124.8046875,\n 42.00032514831621\n ],\n [\n -124.82666015624999,\n 40.17887331434696\n ],\n [\n -123.3984375,\n 37.82280243352756\n ],\n [\n -122.18994140624999,\n 36.06686213257888\n ],\n [\n -120.82763671875,\n 34.56085936708384\n ],\n [\n -120.43212890625,\n 33.63291573870479\n ],\n [\n -117.99316406249999,\n 32.287132632616384\n ],\n [\n -116.78466796875,\n 32.63937487360669\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db698930","contributors":{"authors":[{"text":"Hapke, Cheryl J. 0000-0002-2753-4075 chapke@usgs.gov","orcid":"https://orcid.org/0000-0002-2753-4075","contributorId":2981,"corporation":false,"usgs":true,"family":"Hapke","given":"Cheryl","email":"chapke@usgs.gov","middleInitial":"J.","affiliations":[{"id":6676,"text":"USGS (retired)","active":true,"usgs":false}],"preferred":true,"id":291258,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reid, David","contributorId":63888,"corporation":false,"usgs":true,"family":"Reid","given":"David","email":"","affiliations":[],"preferred":false,"id":291259,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70174303,"text":"70174303 - 2007 - Food habits of rodents inhabiting arid and semi-arid ecosystems of central New Mexico","interactions":[],"lastModifiedDate":"2018-06-12T20:53:50","indexId":"70174303","displayToPublicDate":"2007-05-10T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5126,"text":"Special publication of the Museum of Southwestern Biology","active":true,"publicationSubtype":{"id":10}},"title":"Food habits of rodents inhabiting arid and semi-arid ecosystems of central New Mexico","docAbstract":"

In this study, we describe seasonal dietary composition for 15 species of rodents collected in all major habitats on the Sevilleta National Wildlife Refuge (Socorro County) in central New Mexico. A comprehensive literature review of food habits for these species from throughout their distribution also is provided. We collected rodents in the field during winter, spring and late summer in 1998 from six communities: riparian cottonwood forest; piñon-juniper woodland; juniper-oak savanna; mesquite savanna; short-grass steppe; and Chihuahuan Desert scrubland. Rodents included Spermophilus spilosoma (Spotted Ground Squirrel), Perognathus flavescens (Plains Pocket Mouse), Perognathus flavus (Silky Pocket Mouse), Dipodomys merriami (Merriam’s Kangaroo Rat), Dipodomys ordii (Ord’s Kangaroo Rat), Dipodomys spectabilis (Banner-tailed Kangaroo Rat), Reithrodontomys megalotis (Western Harvest Mouse), Peromyscus boylii (Brush Mouse), Peromyscus eremicus (Cactus Mouse), Peromyscus leucopus (White-footed Mouse), Peromyscus truei (Piñon Mouse), Onychomys arenicola (Mearn’s Grasshopper Mouse), Onychomys leucogaster (Northern Grasshopper Mouse), Neotoma albigula/leucodon (White-throated Woodrats), and Neotoma micropus (Southern Plains Woodrat). We collected stomach contents of all species, and cheek-pouch contents of heteromyids, and quantified them in the laboratory. We determined seasonal diets in each habitat by calculating mean percentage volumes of seeds, arthropods and green vegetation (plant leaves and stems) for each species of rodent. Seeds consumed by each rodent were identified to genus, and often species, and quantified by frequency counts. Comparisons of diets between and among species of rodents, seasons, and ecosystems were also examined. We provide an appendix of all plant taxa documented.

","language":"English","publisher":"Museum of Southwestern Biology","publisherLocation":"Albuquerque, NM","usgsCitation":"Hope, A.G., and Parmenter, R.R., 2007, Food habits of rodents inhabiting arid and semi-arid ecosystems of central New Mexico: Special publication of the Museum of Southwestern Biology, v. 9, p. 1-75.","productDescription":"75 p.","startPage":"1","endPage":"75","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":324825,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":324824,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://repository.unm.edu/bitstream/handle/1928/26728/MSB-Special-Pub-N09-HopeParmenter2007.pdf?sequence=1","text":"Publisher PDF","linkFileType":{"id":1,"text":"pdf"},"description":"Publisher PDF"}],"volume":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"577f7d30e4b0ef4d2f45faaa","contributors":{"authors":[{"text":"Hope, Andrew G. 0000-0003-3814-2891 ahope@usgs.gov","orcid":"https://orcid.org/0000-0003-3814-2891","contributorId":4309,"corporation":false,"usgs":true,"family":"Hope","given":"Andrew","email":"ahope@usgs.gov","middleInitial":"G.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":641740,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Parmenter, Robert R.","contributorId":88643,"corporation":false,"usgs":true,"family":"Parmenter","given":"Robert","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":641741,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":79900,"text":"ofr20071126 - 2007 - Major- and Trace-Element Concentrations in Rock Samples from the Sleetmute 1:250,000-Scale Quadrangle, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:11:44","indexId":"ofr20071126","displayToPublicDate":"2007-05-05T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1126","title":"Major- and Trace-Element Concentrations in Rock Samples from the Sleetmute 1:250,000-Scale Quadrangle, Alaska","docAbstract":"This report consists of geochemical data for rock samples collected in the Sleetmute 1:250,000-scale quadrangle by the U.S. Geological Survey between 1993 and 1999. Data were primarily used to conduct a mineral resource assessment of this quadrangle. The analytical results are presented here as digital tabular data with no interpretation.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071126","usgsCitation":"Klimasauskas, E.P., Miller, M.L., and Keith, W.J., 2007, Major- and Trace-Element Concentrations in Rock Samples from the Sleetmute 1:250,000-Scale Quadrangle, Alaska: U.S. Geological Survey Open-File Report 2007-1126, Report: iv, 7 p.; Metadata; Data Files, https://doi.org/10.3133/ofr20071126.","productDescription":"Report: iv, 7 p.; Metadata; Data Files","additionalOnlineFiles":"Y","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":194943,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9623,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1126/","linkFileType":{"id":5,"text":"html"}}],"scale":"250000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -159,60 ], [ -159,62 ], [ -156,62 ], [ -156,60 ], [ -159,60 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db649828","contributors":{"authors":[{"text":"Klimasauskas, Edward P.","contributorId":80366,"corporation":false,"usgs":true,"family":"Klimasauskas","given":"Edward","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":291112,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Marti L. 0000-0003-0285-4942 mlmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-0285-4942","contributorId":561,"corporation":false,"usgs":true,"family":"Miller","given":"Marti","email":"mlmiller@usgs.gov","middleInitial":"L.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":291110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keith, William J.","contributorId":21146,"corporation":false,"usgs":true,"family":"Keith","given":"William","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":291111,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":79908,"text":"ds204 - 2007 - Geochemical data for stream-sediment, surface-water, rock, and vegetation samples from Red Mountain (Dry Creek), an unmined volcanogenic massive sulfide deposit in the Bonnifield District, Alaska Range, east-central Alaska","interactions":[],"lastModifiedDate":"2022-06-06T19:30:54.982447","indexId":"ds204","displayToPublicDate":"2007-05-05T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"204","title":"Geochemical data for stream-sediment, surface-water, rock, and vegetation samples from Red Mountain (Dry Creek), an unmined volcanogenic massive sulfide deposit in the Bonnifield District, Alaska Range, east-central Alaska","docAbstract":"North-central and northeast Nevada contains numerous large plutons and smaller stocks but also contains many small, shallowly emplaced intrusive bodies, including dikes, sills, and intrusive lava dome complexes. Decades of geologic investigations in the study area demonstrate that many ore deposits, representing diverse ore deposit types, are spatially, and probably temporally and genetically, associated with these igneous intrusions. However, despite the number and importance of igneous instrusions in the study area, no synthesis of geochemical data available for these rocks has been completed. This report presents a synthesis of composition and age data for these rocks. The product represents the first phases of an effort to evaluate the time-space-compositional evolution of Mesozoic and Cenozoic magmatism in the study area and identify genetic associations between magmatism and mineralizing processes in this region.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds204","usgsCitation":"Giles, S.A., Eppinger, R.G., Granitto, M., Zelenak, P.P., Adams, M., Anthony, M.W., Briggs, P.H., Gough, L.P., Hageman, P.L., Hammarstrom, J.M., Horton, J.D., Sutley, S.J., Theodorakos, P.M., and Wolf, R.E., 2007, Geochemical data for stream-sediment, surface-water, rock, and vegetation samples from Red Mountain (Dry Creek), an unmined volcanogenic massive sulfide deposit in the Bonnifield District, Alaska Range, east-central Alaska (Version 1.0): U.S. Geological Survey Data Series 204, Report: iv, 64 p.; Downloads Directory; GIS Directory, https://doi.org/10.3133/ds204.","productDescription":"Report: iv, 64 p.; Downloads Directory; GIS Directory","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":192147,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9888,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/2006/204/","linkFileType":{"id":5,"text":"html"}},{"id":401801,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81507.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Bonnifield District, Red Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -147.433,\n 63.9492\n ],\n [\n -147.3167,\n 63.9492\n ],\n [\n -147.3167,\n 63.9056\n ],\n [\n -147.433,\n 63.9056\n ],\n [\n -147.433,\n 63.9492\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae9d4","contributors":{"authors":[{"text":"Giles, Stuart A. 0000-0002-8696-5078 sgiles@usgs.gov","orcid":"https://orcid.org/0000-0002-8696-5078","contributorId":1233,"corporation":false,"usgs":true,"family":"Giles","given":"Stuart","email":"sgiles@usgs.gov","middleInitial":"A.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291142,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eppinger, Robert G. eppinger@usgs.gov","contributorId":849,"corporation":false,"usgs":true,"family":"Eppinger","given":"Robert","email":"eppinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291135,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Granitto, Matthew 0000-0003-3445-4863 granitto@usgs.gov","orcid":"https://orcid.org/0000-0003-3445-4863","contributorId":1224,"corporation":false,"usgs":true,"family":"Granitto","given":"Matthew","email":"granitto@usgs.gov","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":291137,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zelenak, Philip P.","contributorId":62297,"corporation":false,"usgs":true,"family":"Zelenak","given":"Philip","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":291145,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Adams, Monique G.","contributorId":76338,"corporation":false,"usgs":true,"family":"Adams","given":"Monique G.","affiliations":[],"preferred":false,"id":291146,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Anthony, Michael W. manthony@usgs.gov","contributorId":1232,"corporation":false,"usgs":true,"family":"Anthony","given":"Michael","email":"manthony@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":291141,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Briggs, Paul H.","contributorId":30973,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":291144,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":291140,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Hageman, Philip L. 0000-0002-3440-2150 phageman@usgs.gov","orcid":"https://orcid.org/0000-0002-3440-2150","contributorId":811,"corporation":false,"usgs":true,"family":"Hageman","given":"Philip","email":"phageman@usgs.gov","middleInitial":"L.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":291134,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hammarstrom, Jane M. 0000-0003-2742-3460 jhammars@usgs.gov","orcid":"https://orcid.org/0000-0003-2742-3460","contributorId":1226,"corporation":false,"usgs":true,"family":"Hammarstrom","given":"Jane","email":"jhammars@usgs.gov","middleInitial":"M.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291138,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Horton, John D. 0000-0003-2969-9073 jhorton@usgs.gov","orcid":"https://orcid.org/0000-0003-2969-9073","contributorId":1227,"corporation":false,"usgs":true,"family":"Horton","given":"John","email":"jhorton@usgs.gov","middleInitial":"D.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291139,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Sutley, Stephan J.","contributorId":78417,"corporation":false,"usgs":true,"family":"Sutley","given":"Stephan","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":291147,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Theodorakos, Peter M. ptheodor@usgs.gov","contributorId":1566,"corporation":false,"usgs":true,"family":"Theodorakos","given":"Peter","email":"ptheodor@usgs.gov","middleInitial":"M.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":291143,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Wolf, Ruth E. rwolf@usgs.gov","contributorId":903,"corporation":false,"usgs":true,"family":"Wolf","given":"Ruth","email":"rwolf@usgs.gov","middleInitial":"E.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":291136,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":79835,"text":"sim2948 - 2007 - Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska","interactions":[],"lastModifiedDate":"2018-11-05T11:17:29","indexId":"sim2948","displayToPublicDate":"2007-04-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2948","title":"Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska","docAbstract":"

The northeastern part of the National Petroleum Reserve in Alaska (NPRA) has become an area of active petroleum exploration during the past five years. Recent leasing and exploration drilling in the NPRA requires the U.S. Bureau of Land Management (BLM) to manage and monitor a variety of surface activities that include seismic surveying, exploration drilling, oil-field development drilling, construction of oil-production facilities, and construction of pipelines and access roads. BLM evaluates a variety of permit applications, environmental impact studies, and other documents that require rapid compilation and analysis of data pertaining to surface and subsurface geology, hydrology, and biology. In addition, BLM must monitor these activities and assess their impacts on the natural environment. Timely and accurate completion of these land-management tasks requires elevation, hydrologic, geologic, petroleum-activity, and cadastral data, all integrated in digital formats at a higher resolution than is currently available in nondigital (paper) formats.

To support these land-management tasks, a series of maps was generated from remotely sensed data in an area of high petroleum-industry activity (fig. 1). The maps cover an area from approximately latitude 70°00' N. to 70°30' N. and from longitude 151°00' W. to 153°10' W. The area includes the Alpine oil field in the east, the Husky Inigok exploration well (site of a landing strip) in the west, many of the exploration wells drilled in NPRA since 2000, and the route of a proposed pipeline to carry oil from discovery wells in NPRA to the Alpine oil field. This map area is referred to as the \"Fish Creek area\" after a creek that flows through the region.

The map series includes (1) a color shaded-relief map based on 5-m-resolution data (sheet 1), (2) a surface-classification map based on 30-m-resolution data (sheet 2), and (3) a 5-m-resolution shaded relief-surface classification map that combines the shaded-relief and surface-classification data (sheet 3). Remote sensing datasets that were used to compile the maps include Landsat 7 Enhanced Thematic Mapper+ (ETM+), and interferometric synthetic aperture radar (IFSAR) data. In addition, a 1:250,000-scale geologic map of the Harrison Bay quadrangle, Alaska (Carter and Galloway, 1985, 2005) was used in conjunction with ETM+ and IFSAR data.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sim2948","collaboration":"Prepared in cooperation with the Bureau of Land Management","usgsCitation":"Mars, J.L., Garrity, C.P., Houseknecht, D.W., Amoroso, L., and Meares, D.C., 2007, Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska: U.S. Geological Survey Scientific Investigations Map 2948, Explanatory Text (iv, 15 p.); Maps: 3 Sheets (each 58 x 41 inches), https://doi.org/10.3133/sim2948.","productDescription":"Explanatory Text (iv, 15 p.); Maps: 3 Sheets (each 58 x 41 inches)","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":192849,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9529,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sim/2007/2948/","linkFileType":{"id":5,"text":"html"}},{"id":110726,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81198.htm","linkFileType":{"id":5,"text":"html"},"description":"81198"}],"scale":"63360","country":"United States","state":"Alaska","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae97b","contributors":{"authors":[{"text":"Mars, John L. jmars@usgs.gov","contributorId":3428,"corporation":false,"usgs":true,"family":"Mars","given":"John","email":"jmars@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":false,"id":290961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garrity, Christopher P. 0000-0002-5565-1818 cgarrity@usgs.gov","orcid":"https://orcid.org/0000-0002-5565-1818","contributorId":644,"corporation":false,"usgs":true,"family":"Garrity","given":"Christopher","email":"cgarrity@usgs.gov","middleInitial":"P.","affiliations":[{"id":5061,"text":"National Cooperative Geologic Mapping and Landslide Hazards","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290958,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Houseknecht, David W. 0000-0002-9633-6910 dhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-9633-6910","contributorId":645,"corporation":false,"usgs":true,"family":"Houseknecht","given":"David","email":"dhouse@usgs.gov","middleInitial":"W.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290959,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amoroso, Lee lamoroso@usgs.gov","contributorId":3069,"corporation":false,"usgs":true,"family":"Amoroso","given":"Lee","email":"lamoroso@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":290960,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meares, Donald C.","contributorId":94753,"corporation":false,"usgs":true,"family":"Meares","given":"Donald","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":290962,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":79844,"text":"ofr20071096 - 2007 - Vegetation response to climate change in Alaska: examples from the fossil record","interactions":[],"lastModifiedDate":"2017-10-11T10:29:11","indexId":"ofr20071096","displayToPublicDate":"2007-04-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1096","title":"Vegetation response to climate change in Alaska: examples from the fossil record","docAbstract":"Preface:\n\nThis report was presented as an invited paper at the Fish & Wildlife Service Climate Forum held in Anchorage, Alaska on February 21-23, 2007. The purpose of the talk was to provide some examples of past climate changes that appear to have caused significant responses in Alaskan vegetation. These examples are based on interpretations of dated fossil assemblages (pollen, spores and plant macrofossils) collected and interpreted by U.S. Geological Survey and collaborating scientists from other scientific organizations during the past several decades.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071096","usgsCitation":"Ager, T.A., 2007, Vegetation response to climate change in Alaska: examples from the fossil record (Version 1.0): U.S. Geological Survey Open-File Report 2007-1096, 44 p., https://doi.org/10.3133/ofr20071096.","productDescription":"44 p.","numberOfPages":"47","onlineOnly":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":192057,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071096.gif"},{"id":346494,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1096/pdf/OF07-1096_508.pdf","text":"Report","size":"3 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":9547,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1096/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db602730","contributors":{"authors":[{"text":"Ager, Thomas A. 0000-0002-5029-7581 tager@usgs.gov","orcid":"https://orcid.org/0000-0002-5029-7581","contributorId":736,"corporation":false,"usgs":true,"family":"Ager","given":"Thomas","email":"tager@usgs.gov","middleInitial":"A.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":290973,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79792,"text":"sir20075047 - 2007 - Proceedings of the Fourth Glacier Bay Science Symposium","interactions":[],"lastModifiedDate":"2023-09-22T21:06:32.563207","indexId":"sir20075047","displayToPublicDate":"2007-04-14T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5047","title":"Proceedings of the Fourth Glacier Bay Science Symposium","docAbstract":"

Foreword Glacier Bay was established as a National Monument in 1925, in part to protect its unique character and natural beauty, but also to create a natural laboratory to examine evolution of the glacial landscape. Today, Glacier Bay National Park and Preserve is still a place of profound natural beauty and dynamic landscapes. It also remains a focal point for scientific research and includes continuing observations begun decades ago of glacial processes and terrestrial ecosystems. In recent years, research has focused on glacial-marine interactions and ecosystem processes that occur below the surface of the bay. In October 2004, Glacier Bay National Park convened the fourth in a series of science symposiums to provide an opportunity for researchers, managers, interpreters, educators, students and the general public to share knowledge about Glacier Bay. The Fourth Glacier Bay Science Symposium was held in Juneau, Alaska, rather than at the Park, reflecting a desire to maximize attendance and communication among a growing and diverse number of stakeholders interested in science in the park. More than 400 people attended the symposium. Participants provided 46 oral presentations and 41 posters covering a wide array of disciplines including geology, glaciology, oceanography, wildlife and fisheries biology, terrestrial and marine ecology, socio-cultural research and management issues. A panel discussion focused on the importance of connectivity in Glacier Bay research, and keynote speakers (Gary Davis and Terry Chapin) spoke of long-term monitoring and ecological processes. These proceedings include 56 papers from the symposium. A summary of the Glacier Bay Science Plan-itself a subject of a meeting during the symposium and the result of ongoing discussions between scientists and resource managers-also is provided. We hope these proceedings illustrate the diversity of completed and ongoing scientific studies, conducted within the Park. To this end, we invited all presenters to submit brief technical summaries of their work, to capture the gist of their study and its main findings without an overload of details and methodology. We also asked authors to include a few words on the management implications of their work to help bridge the gap between scientists and managers in understanding how specific research questions may translate to management practice. Papers in this volume are laid out by subject matter, from terrestrial and freshwater subjects to glacial-marine geology, to the ecology of marine animals and ending with risk assessment, human impacts and science-management considerations. In summary, we hope the proceedings will serve as a useful reference to completed and ongoing studies in Glacier Bay National Park, and thereby provide park enthusiasts, scientists, and managers with a road map of scientific progress.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20075047","collaboration":"Sponsored by: U.S. Geological Survey Alaska Science Center,\r\nNational Park Service Alaska Regional Office, and Glacier Bay National Park and Preserve","usgsCitation":"Piatt, J.F., and Gende, S.M., 2007, Proceedings of the Fourth Glacier Bay Science Symposium: U.S. Geological Survey Scientific Investigations Report 2007-5047, x, 246 p., https://doi.org/10.3133/sir20075047.","productDescription":"x, 246 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true}],"links":[{"id":421093,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81148.htm","linkFileType":{"id":5,"text":"html"}},{"id":9482,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5047/","linkFileType":{"id":5,"text":"html"}},{"id":190711,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"tableOfContents":"

Contents

\n

Foreword

\n

Welcome

\n

Acknowledgments

\n

Agents of Change in Freshwater and Terrestrial Environments

\n

Ecological Development of the Wolf Point Creek Watershed; A 25-Year Colonization Record from 1977 to 2001, Alexander M. Milner, Kieran Monaghan, Elizabeth A. Flory, Amanda J. Veal, and Anne Robertson

\n

Coupling Between Primary Terrestrial Succession and the Trophic Development of Lakes at Glacier Bay, D.R. Engstrom and S.C. Fritz

\n

Spruce Beetle Epidemic and Successional Aftermath in Glacier Bay, Mark Schultz and Paul Hennon

\n

Preliminary Assessment of Breeding-Site Occurrence, Microhabitat, and Sampling of Western Toads in Glacier Bay, Sanjay Pyare, Robert E. Christensen III, and Michael J. Adams

\n

Effects of Moose Foraging on Soil Nutrient Dynamics in the Gustavus Forelands, Alaska, Eran Hood, Amy Miller, and Kevin White

\n

Ecology of Moose on the Gustavus Forelands: Population Irruption, Nutritional Limitation, and Conservation Implications, Kevin S. White, Neil Barten, and John Crouse

\n

The Cultural Ecology of Berries in Glacier Bay, Thomas F. Thornton

\n

Glacial-Marine Geology and Climate Change

\n

Geologic Characteristics of Benthic Habitats in Glacier Bay, Alaska, Derived from Geophysical Data, Videography, and Sediment Sampling, Jodi Harney, Guy Cochrane, Lisa Etherington, Pete Dartnell, and Hank Chezar

\n

Assessing Contemporary and Holocene Glacial and Glacial-Marine Environments, David C. Finnegan, Daniel E. Lawson, and Sarah E. Kopczynski

\n

High Frequency Climate Signals in Fjord Sediments of Glacier Bay National Park, Alaska, Ellen A. Cowan and Ross D. Powell

\n

Geology and Oral History—Complementary Views of a Former Glacier Bay Landscape, Daniel Monteith, Cathy Connor, Gregory Streveler, and Wayne Howell

\n

Early to Mid-Holocene Glacier Fluctuations in Glacier Bay, Alaska, Daniel E. Lawson, David C. Finnegan, Sarah E. Kopczynski, and Susan R. Bigl

\n

Post Little Ice Age Rebound in the Glacier Bay Region, Roman J. Motyka, Christopher F. Larsen, Jeffrey T. Freymueller, and Keith A. Echelmeyer

\n

Documenting More than a Century of Glacier Bay Landscape Evolution with Historical Photography, Bruce F. Molnia, Ronald D. Karpilo, Jr., and Harold S. Pranger

\n

Animating Repeat Glacier Photography—A Tool for Science and Education, Ronald D. Karpilo, Jr., Bruce F. Molina, and Harold S. Pranger

\n

Physical and Biological Patterns in the Marine Environment

\n

Glacier Bay Seafloor Habitat Mapping and Classification—First Look at Linkages with Biological Patterns, Lisa Etherington, Guy Cochrane, Jodi Harney, Jim Taggart, Jennifer Mondragon, Alex Andrews, Erica Madison, Hank Chezar, and Jim de la Bruere

\n

Physical and Biological Oceanographic Patterns in Glacier Bay, Lisa L. Etherington, Philip N. Hooge, and Elizabeth R. Hooge

\n

A Transect of Glacier Bay Ocean Currents Measured by Acoustic Doppler Current Profiler (ADCP), Edward D. Cokelet, Antonio J. Jenkins, and Lisa L. Etherington

\n

Spatial Distribution and Abundance of Tanner and Red King Crab Inside and Outside of Marine Reserves in Glacier Bay, Alaska, Jennifer Mondragon, Spencer J. Taggart, Alexander G. Andrews, Julie K. Nielsen, and Jim De Le Bruere

\n

Testing the Effectiveness of a High Latitude Marine Reserve Network: a Multi-Species Movement Study, Alex G. Andrews, S. James Taggart, Jennifer Mondragon, and Julie K. Nielsen

\n

Glacial Fjords in Glacier Bay National Park: Nursery Areas for Tanner Crabs?, Julie K. Nielsen, S. James Taggart, Thomas C. Shirley, Jennifer Mondragon, and Alexander G. Andrews

\n

Ecdysteroid Levels in Glacier Bay Tanner Crab: Evidence for a Terminal Molt, Sherry L. Tamone, S. James Taggart, Alexander G. Andrews, Jennifer Mondragon, and Julie K. Nielsen

\n

Geochemical Signatures as Natural Fingerprints to Aid in Determining Tanner Crab Movement in Glacier Bay National Park, Alaska, Bronwen Wang, Robert R. Seal, S. James Taggart, Jennifer Mondragon, Alex Andrews, Julie Nielsen, James G. Crock, and Gregory A. Wandless

\n

Distribution of Forage Fishes in Relation to the Oceanography of Glacier Bay, Mayumi L. Arimitsu, John F. Piatt, Marc D. Romano, and David C. Douglas

\n

The Distribution and Abundance of Pacific Halibut in a Recently Deglaciated Fjord: Implications for Marine Reserve Design, Jennifer Mondragon, Lisa L. Etherington, S. James Taggart, and Philip N. Hooge

\n

Preliminary Analysis of Sockeye Salmon Colonization in Glacier Bay Inferred from Genetic Methods, Christine Kondzela and A. J. Gharrett

\n

Populations and Marine Ecology of Birds and Mammals

\n

Temporal and Spatial Variability in Distribution of Kittlitz’s Murrelet in Glacier Bay, Marc D. Romano, John F. Piatt, Gary S. Drew, and James L. Bodkin

\n

First Successful Radio-Telemetry Study of Kittlitz’s Murrelet: Problems and Potential, Marc D. Romano, John F. Piatt, and Harry R. Carter

\n

Distribution and Abundance of Kittlitz’s Murrelets Along the Outer Coast of Glacier Bay National Park and Preserve, Michelle Kissling, Kathy Kuletz, and Steve Brockmann

\n

Population Status and Trends of Marine Birds and Mammals in Glacier Bay National Park, Gary S. Drew, John F. Piatt, and James Bodkin

\n

Perspectives on an Invading Predator: Sea Otters in Glacier Bay, James L. Bodkin, B.E. Ballachey, G.G. Esslinger, K.A. Kloecker, D.H. Monson, and H.A. Coletti

\n

Declines in a Harbor Seal Population in a Marine Reserve, Glacier Bay, Alaska, 1992–2002, Elizabeth A. Mathews and Grey W. Pendleton

\n

Harbor Seal Research in Glacier Bay National Park, Gail M. Blundell, Scott M. Gende, and Jamie N. Womble

\n

Population Trends, Diet, Genetics, and Observations of Steller Sea Lions in Glacier Bay National Park, Tom Gelatt, Andrew W. Trites, Kelly Hastings, Lauri Jemison, Ken Pitcher, and Greg O’Corry-Crowe

\n

Ecosystem Models of the Aleutian Islands and Southeast Alaska Show that Steller Sea Lions are Impacted by Killer Whale Predation when Sea Lion Numbers are Low, Sylvie Guénette, Sheila J.J. Heymans, Villy Christensen, and Andrew W. Trites

\n

Killer Whale Feeding Ecology and Non-Predatory Interactions with other Marine Mammals in the Glacier Bay Region of Alaska, Dena R. Matkin, Janice M. Straley, and Christine M. Gabriele

\n

Age at First Calving of Female Humpback Whales in Southeastern Alaska, Christine M. Gabriele, Janice M. Straley, and Janet L. Neilson

\n

Risk Assessment and Human Impacts

\n

Landslide-Induced Wave Hazard Assessment: Tidal Inlet, Glacier Bay National Park, Alaska, Gerald F. Wieczorek, Eric L. Geist, Matthias Jakob, Sandy L. Zirnheld, Ellie Boyce, Roman J. Motyka, and Patricia Burns

\n

Glacier Bay Underwater Soundscape, Blair Kipple and Chris Gabriele

\n

Underwater Noise from Skiffs to Ships, Blair Kipple and Chris Gabriele

\n

Vessel Use and Activity in Glacier Bay National Park’s Outer Waters, C. Soiseth, J. Kroese, R. Libermann, and S. Bookless

\n

Causes and Costs of Injury in Trapped Dungeness Crabs, Julie S. Barber and Katie E. Lotterhos

\n

The Diffusion of Fishery Information in a Charter Boat Fishery: Guide-Client Interactions in Gustavus, Alaska, Jason R. Gasper, Marc L. Miller, Vincent F. Gallucci, and Chad Soiseth

\n

Simulating the Effects of Predation and Egg-harvest at a Gull Colony, Stephani Zador and John F. Piatt

\n

Huna Tlingit Gull Egg Harvests in Glacier Bay National Park, Eugene S. Hunn, Darryll R. Johnson, Priscilla N. Russell, and Thomas F. Thornton

\n

Ground-Nesting Marine Bird Distribution and Potential for Human Impacts in Glacier Bay, Mayumi L. Arimitsu, Marc D. Romano, and John F. Piatt

\n

Bear-Human Conflict Risk Assessment at Glacier Bay National Park and Preserve, Tom Smith, Terry D. Debruyn, Tania Lewis, Rusty Yerxa, and Steven T. Partridge

\n

Humpback Whale Entanglement in Fishing Gear in Northern Southeastern Alaska, Janet L. Neilson, Christine M. Gabriele, and Janice M. Straley

\n

Distribution and Numbers of Back Country Visitors in Glacier Bay National Park, 1996-2003, Mary L. Kralovec, Allison H. Banks, and Hank Lentfer

\n

Wilderness Camp Impacts: Assessment of Human Effects on the Shoreline of Glacier Bay, Tania M. Lewis, Nathanial K. Drumheller, and Allison H. Banks

\n

Science and Management

\n

1,500 Kilometers of Shoreline Resource Information: Glacier Bay’s Coastal Resources Inventory and Mapping Program, Lewis C. Sharman, Bill Eichenlaub, Phoebe B.S. Vanselow, Jennifer C. Burr, and Whitney Rapp

\n

Conceptual Ecosystem Models for Glacier Bay National Park and Preserve, Christopher L. Fastie and Chiska C. Derr

\n

Toward an Integrated Science Plan for Glacier Bay National Park and Preserve: Results from a Workshop, 2004, J.L. Bodkin and S.L. Boudreau

\n

Peripheral Vision as an Adjunct to Rigor, Greg Steveler

\n

Tributes

\n

The Legacy of W.O. Field in Glacier Bay, C. Suzanne Brown

\n

A Tribute to Don Lawrence, Greg Streveler

","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db655397","contributors":{"authors":[{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":290840,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gende, Scott M.","contributorId":27320,"corporation":false,"usgs":true,"family":"Gende","given":"Scott","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":290841,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":79751,"text":"ofr20071046 - 2007 - Geologic Mapping and Mineral Resource Assessment of the Healy and Talkeetna Mountains Quadrangles, Alaska Using Minimal Cloud- and Snow-Cover ASTER Data","interactions":[],"lastModifiedDate":"2012-02-02T00:14:13","indexId":"ofr20071046","displayToPublicDate":"2007-04-03T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1046","title":"Geologic Mapping and Mineral Resource Assessment of the Healy and Talkeetna Mountains Quadrangles, Alaska Using Minimal Cloud- and Snow-Cover ASTER Data","docAbstract":"On July 8, 2003, ASTER acquired satellite imagery of a 60 km-wide swath of parts of two 1:250,000 Alaska quadrangles, under favorable conditions of minimal cloud- and snow-cover. Rocks from eight different lithotectonic terranes are exposed within the swath of data, several of which define permissive tracts for various mineral deposit types such as: volcanic-hosted massive sulfides (VMS) and porphyry copper and molybdenum. Representative rock samples collected from 13 different lithologic units from the Bonnifield mining district within the Yukon-Tanana terrane (YTT), plus hydrothermally altered VMS material from the Red Mountain prospect, were analyzed to produce a spectral library spanning the VNIR-SWIR (0.4 - 2.5 ?m) through the TIR (8.1 - 11.7 ?m). \r\n\r\nComparison of the five-band ASTER TIR emissivity and decorrelation stretch data to available geologic maps indicates that rocks from the YTT display the greatest range and diversity of silica composition of the mapped terranes, ranging from mafic rocks to silicic quartzites. The nine-band ASTER VNIR-SWIR reflectance data and spectral matched-filter processing were used to map several lithologic sequences characterized by distinct suites of minerals that exhibit diagnostic spectral features (e.g. chlorite, epidote, amphibole and other ferrous-iron bearing minerals); other sequences were distinguished by their weathering characteristics and associated hydroxyl- and ferric-iron minerals, such as illite, smectite, and hematite. \r\n\r\nSmectite, kaolinite, opaline silica, jarosite and/or other ferric iron minerals defined narrow (< 250 m diameter) zonal patterns around Red Mountain and other potential VMS targets. Using ASTER we identified some of the known mineral deposits in the region, as well as mineralogically similar targets that may represent potential undiscovered deposits. Some known deposits were not identified and may have been obscured by vegetation- or snow-cover, or were too small to be resolved.","language":"ENGLISH","doi":"10.3133/ofr20071046","usgsCitation":"Hubbard, B.E., Rowan, L., Dusel-Bacon, C., and Eppinger, R.G., 2007, Geologic Mapping and Mineral Resource Assessment of the Healy and Talkeetna Mountains Quadrangles, Alaska Using Minimal Cloud- and Snow-Cover ASTER Data: U.S. Geological Survey Open-File Report 2007-1046, 22 p., https://doi.org/10.3133/ofr20071046.","productDescription":"22 p.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190614,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9426,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1046/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68364f","contributors":{"authors":[{"text":"Hubbard, Bernard E. 0000-0002-9315-2032 bhubbard@usgs.gov","orcid":"https://orcid.org/0000-0002-9315-2032","contributorId":2342,"corporation":false,"usgs":true,"family":"Hubbard","given":"Bernard","email":"bhubbard@usgs.gov","middleInitial":"E.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290750,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rowan, Lawrence C.","contributorId":22860,"corporation":false,"usgs":true,"family":"Rowan","given":"Lawrence C.","affiliations":[],"preferred":false,"id":290752,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":290751,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eppinger, Robert G. eppinger@usgs.gov","contributorId":849,"corporation":false,"usgs":true,"family":"Eppinger","given":"Robert","email":"eppinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290749,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":79727,"text":"ofr20071075 - 2007 - Regional geochemical results from the reanalysis of NURE stream sediment samples -- Eagle 3 degree quadrangle, east-central Alaska","interactions":[],"lastModifiedDate":"2021-08-17T21:32:38.763973","indexId":"ofr20071075","displayToPublicDate":"2007-03-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1075","title":"Regional geochemical results from the reanalysis of NURE stream sediment samples -- Eagle 3 degree quadrangle, east-central Alaska","docAbstract":"

This report presents reconnaissance geochemical data for a cooperative study in the Fortymile Mining District, east-central Alaska, initiated in 1997. This study has been funded by the U.S. Geological Survey (USGS) Mineral Resources Program. Cooperative funds were provided from various State of Alaska sources through the Alaska Department of Natural Resources. Results presented here represent the initial reconnaissance phase for this multidisciplinary cooperative study. In this phase, 239 sediment samples from the Eagle 3° Quadrangle of east-central Alaska, which had been collected and analyzed for the U.S. Department of Energy's National Uranium Resource Evaluation program (NURE) of the 1970's (Hoffman and Buttleman, 1996; Smith, 1997), are reanalyzed by newer analytical methods that are more sensitive, accurate, and precise (Arbogast, 1996; Taggart, 2002). The main objectives for the reanalysis of these samples were to establish lower limits of determination for some elements and to confirm the NURE data as a reliable predictive reconnaissance tool for future studies in Alaska's Eagle 3° Quadrangle. This study has wide implications for using the archived NURE samples and data throughout Alaska for future studies.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20071075","usgsCitation":"Crock, J., Briggs, P., Gough, L.P., Wanty, R., and Brown, Z.A., 2007, Regional geochemical results from the reanalysis of NURE stream sediment samples -- Eagle 3 degree quadrangle, east-central Alaska (Version 1.0): U.S. Geological Survey Open-File Report 2007-1075, iv, 35 p., https://doi.org/10.3133/ofr20071075.","productDescription":"iv, 35 p.","onlineOnly":"Y","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190613,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":388069,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_81062.htm"},{"id":9392,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1075/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Eagle 3° quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -141,\n 64.00\n ],\n [\n -144,\n 64.00\n ],\n [\n -144,\n 65.00\n ],\n [\n -141,\n 65.0\n ],\n [\n -141,\n 64.00\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db634bd4","contributors":{"authors":[{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":290665,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Briggs, Paul H.","contributorId":107691,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul H.","affiliations":[],"preferred":false,"id":290669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gough, L. P.","contributorId":64198,"corporation":false,"usgs":true,"family":"Gough","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":290666,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wanty, R. B. 0000-0002-2063-6423","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":66704,"corporation":false,"usgs":true,"family":"Wanty","given":"R. B.","affiliations":[],"preferred":false,"id":290667,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brown, Z. A.","contributorId":82708,"corporation":false,"usgs":true,"family":"Brown","given":"Z.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":290668,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":79722,"text":"fs20073019 - 2007 - Alaska Science Center: Providing Timely, Relevant, and Impartial Study of the Landscape, Natural Resources, and Natural Hazards for Alaska and Our Nation","interactions":[],"lastModifiedDate":"2012-02-02T00:14:15","indexId":"fs20073019","displayToPublicDate":"2007-03-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-3019","title":"Alaska Science Center: Providing Timely, Relevant, and Impartial Study of the Landscape, Natural Resources, and Natural Hazards for Alaska and Our Nation","docAbstract":"The U.S. Geological Survey (USGS), the Nation's largest water, earth, and biological science and civilian mapping agency, has studied the natural features of Alaska since its earliest geologic expeditions in the 1800s. The USGS Alaska Science Center (ASC), with headquarters in Anchorage, Alaska, studies the complex natural science phenomena of Alaska to provide scientific products and results to a wide variety of partners. The complexity of Alaska's unique landscapes and ecosystems requires USGS expertise from many science disciplines to conduct thorough, integrated research.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/fs20073019","usgsCitation":"USGS Alaska Science Center, 2007, Alaska Science Center: Providing Timely, Relevant, and Impartial Study of the Landscape, Natural Resources, and Natural Hazards for Alaska and Our Nation: U.S. Geological Survey Fact Sheet 2007-3019, 4 p., https://doi.org/10.3133/fs20073019.","productDescription":"4 p.","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":122339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_2007_3019.jpg"},{"id":9378,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2007/3019/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688dd6","contributors":{"authors":[{"text":"USGS Alaska Science Center","contributorId":128242,"corporation":true,"usgs":false,"organization":"USGS Alaska Science Center","id":534843,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79721,"text":"sir20065282 - 2007 - Hydraulic survey and scour assessment of Bridge 524, Tanana River at Big Delta, Alaska","interactions":[],"lastModifiedDate":"2018-04-23T10:34:41","indexId":"sir20065282","displayToPublicDate":"2007-03-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5282","title":"Hydraulic survey and scour assessment of Bridge 524, Tanana River at Big Delta, Alaska","docAbstract":"

Bathymetric and hydraulic data were collected August 26–28, 1996, on the Tanana River at Big Delta, Alaska, at the Richardson Highway bridge and Trans-Alaska Pipeline crossing. Erosion along the right (north) bank of the river between the bridge and the pipeline crossing prompted the data collection. A water-surface profile hydraulic model for the 100- and 500-year recurrence-interval floods was developed using surveyed information. The Delta River enters the Tanana immediately downstream of the highway bridge, causing backwater that extends upstream of the bridge. Four scenarios were considered to simulate the influence of the backwater on flow through the bridge. Contraction and pier scour were computed from model results. Computed values of pier scour were large, but the scour during a flood may actually be less because of mitigating factors. No bank erosion was observed at the time of the survey, a low-flow period. Erosion is likely to occur during intermediate or high flows, but the actual erosion processes are unknown at this time.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20065282","collaboration":"Prepared in cooperation with the Alaska Department of Transportation and Public Facilities","usgsCitation":"Heinrichs, T.A., Langley, D.E., Burrows, R.L., and Conaway, J.S., 2007, Hydraulic survey and scour assessment of Bridge 524, Tanana River at Big Delta, Alaska: U.S. Geological Survey Scientific Investigations Report 2006-5282, iv, 67 p., https://doi.org/10.3133/sir20065282.","productDescription":"iv, 67 p.","temporalStart":"1996-08-26","temporalEnd":"1996-08-28","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":192108,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9377,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2006/5282/","linkFileType":{"id":5,"text":"html"}},{"id":353647,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2006/5282/pdf/sir20065282.pdf","text":"Report","size":"4.9 MB","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8810","contributors":{"authors":[{"text":"Heinrichs, Thomas A.","contributorId":93509,"corporation":false,"usgs":true,"family":"Heinrichs","given":"Thomas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":290657,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Langley, Dustin E.","contributorId":91904,"corporation":false,"usgs":true,"family":"Langley","given":"Dustin","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":290656,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burrows, Robert L.","contributorId":79473,"corporation":false,"usgs":true,"family":"Burrows","given":"Robert","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":290655,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Conaway, Jeffrey S. 0000-0002-3036-592X jconaway@usgs.gov","orcid":"https://orcid.org/0000-0002-3036-592X","contributorId":2026,"corporation":false,"usgs":true,"family":"Conaway","given":"Jeffrey","email":"jconaway@usgs.gov","middleInitial":"S.","affiliations":[{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":290654,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":79692,"text":"ofr20071064 - 2007 - Publications of the Volcano Hazards Program 2005","interactions":[],"lastModifiedDate":"2019-03-04T11:43:41","indexId":"ofr20071064","displayToPublicDate":"2007-03-13T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1064","title":"Publications of the Volcano Hazards Program 2005","docAbstract":"The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of Alaska Fairbanks Geophysical Institute, University of Hawaii Hilo, University of Utah, and University of Washington Geophysics Program. This report lists publications from all these institutions. \r\n\r\nThis report contains only published papers and maps; numerous abstracts produced for presentations at scientific meetings have not been included. Publications are included based on date of publication with no attempt to assign them to Fiscal Year.","language":"ENGLISH","doi":"10.3133/ofr20071064","usgsCitation":"Nathenson, M., 2007, Publications of the Volcano Hazards Program 2005 (Version 1.0): U.S. Geological Survey Open-File Report 2007-1064, 11 p., https://doi.org/10.3133/ofr20071064.","productDescription":"11 p.","temporalStart":"2005-01-01","temporalEnd":"2005-12-31","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":616,"text":"Volcano Hazards Team","active":false,"usgs":true}],"links":[{"id":9326,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1064/","linkFileType":{"id":5,"text":"html"}},{"id":194869,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa9e4b07f02db667ef6","contributors":{"authors":[{"text":"Nathenson, Manuel 0000-0002-5216-984X mnathnsn@usgs.gov","orcid":"https://orcid.org/0000-0002-5216-984X","contributorId":1358,"corporation":false,"usgs":true,"family":"Nathenson","given":"Manuel","email":"mnathnsn@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":290583,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70174100,"text":"70174100 - 2007 - Philopatry: A return to origins","interactions":[],"lastModifiedDate":"2018-07-14T14:00:37","indexId":"70174100","displayToPublicDate":"2007-03-07T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Philopatry: A return to origins","docAbstract":"

The word “philopatry” is a combination of the prefix philo (from the Greekphilos, “beloved”) and the Latin patria, which means “fatherland” or “homeland.” Since the first English-language use of “philopatry” in an ornithological context by Huntington (1951), the term has been applied to two types of site-faithful behavior in birds. Closest to the etymological meaning is the first, “natal philopatry,” which means not dispersing far from, or returning to, a birthplace for reproduction. The second is “breeding philopatry,” which means returning to the same breeding area each year, though that area may not be an individual’s birth place (Shields 1982, Anderson et al. 1992). Therefore, any assessment of breeding philopatry likely includes some immigrant individuals, whereas assessments of natal philopatry include only locally hatched or born individuals.

\n

In the past several years, the use of philopatry in the ornithological literature has widened further, to include site fidelity to nonbreeding areas, such as sites used for molting (Iverson et al. 2004), wintering (Robertson and Cooke 1999,Mehl et al. 2004), or stopover during migration (Merom et al. 2000). Use of the term “philopatry” to describe not only natal homing, but general site fidelity to both breeding and nonbreeding sites of individuals whose natal areas are unknown is, I believe, problematic and warrants reconsideration. This is because there are substantial genetic and demographic implications of philopatry in its purest and historical sense (i.e., natal philopatry), such as increased relatedness and population differentiation (Greenwood 1980, Quinn and White 1987, Avise et al. 1992). Indeed, the historical and theoretical discussions of natal philopatry focus on the behavior of limited dispersal from a birth place, how this promotes inbreeding, why inbreeding might be adaptive, and how a lack of gene flow might promote speciation (Mayr 1963, Shields 1982, Anderson et al. 1992). I believe that these population-genetic and demographic implications are potentially misapplied when “philopatry” is used to describe site-faithful behavior in general (see Pearce and Talbot 2006).

\n

The potential danger of applying philopatry to non-natal and nonbreeding conditions is that it creates the expectation of certain outcomes, such as low dispersal rates, population genetic differentiation, and unique population segments, when such conditions may not exist. Given that most avian species do not molt, winter, or have migratory stopovers where they breed, I propose that the term “philopatry” and its genetic expectations be used only in relation to natal philopatry and not extended to (1) breeding- site fidelity of individuals whose natal areas are unknown and (2) nonbreeding areas where site- faithful behavior is observed. I believe this correctly distinguishes natal philopatry as a specific type of site fidelity with its own implications for population genetics and dynamics. Thus, philopatry should be viewed as synonymous and interchangeable with the terms “natal-site fidelity” and “natal philopatry,” and the term “breeding-site fidelity” should replace “breeding philopatry,” because it reflects the unknown natal origins of birds captured as adults. Although the broader condition of site fidelity may have implications for fitness, mate pairing, and population delineation—as examined in several studies (Robertson and Cooke 1999, Merom et al. 2000, Iverson et al. 2004, Mehl et al. 2004)—future investigations of site fidelity should be pursued without automatically invoking the term “philopatry” and assuming that the genetic and demographic connotations of natal philopatry also apply. In contrast to philopatry, the probability of fidelity (F) and dispersal (1 − F) are estimable parameters (Burnham 1993, Kendall and Nichols 2004), and the demographic and genetic consequences of site fidelity, regardless of where it occurs, can serve as hypotheses for testing with multiple data types (e.g., Arsenault et al. 2005). Such data mergers should enhance our understanding of the demographic, behavioral, and genetic implications of natal philopatry and site fidelity.

","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2007)124[1085:PARTO]2.0.CO;2","usgsCitation":"Pearce, J.M., 2007, Philopatry: A return to origins: The Auk, v. 124, no. 3, p. 1085-1087, https://doi.org/10.1642/0004-8038(2007)124[1085:PARTO]2.0.CO;2.","productDescription":"3 p.","startPage":"1085","endPage":"1087","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476908,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://zenodo.org/record/1236359","text":"Publisher Index Page"},{"id":324480,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57724e32e4b07657d1a819b6","contributors":{"authors":[{"text":"Pearce, John M. 0000-0002-8503-5485 jpearce@usgs.gov","orcid":"https://orcid.org/0000-0002-8503-5485","contributorId":181766,"corporation":false,"usgs":true,"family":"Pearce","given":"John","email":"jpearce@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":640902,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79668,"text":"sir20075027 - 2007 - Hydrology and glacier-lake-outburst floods (1987-2004) and water quality (1998-2003) of the Taku River near Juneau, Alaska","interactions":[],"lastModifiedDate":"2024-02-12T22:52:40.584659","indexId":"sir20075027","displayToPublicDate":"2007-03-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5027","title":"Hydrology and glacier-lake-outburst floods (1987-2004) and water quality (1998-2003) of the Taku River near Juneau, Alaska","docAbstract":"The Taku River Basin originates in British Columbia, Canada, and drains an area of 6,600 square miles at the U.S. Geological Survey's Taku River gaging station. Several mines operated within the basin prior to 1957, and mineral exploration has resumed signaling potential for future mining developments. The U.S. Geological Survey in cooperation with the Douglas Indian Association, Alaska Department of Environmental Conservation, and the U.S. Environmental Protection Agency conducted a water-quality and flood-hydrology study of the Taku River. Water-quality sampling of the Taku River from 1998 through 2003 established a baseline for assessing potential effects of future mining operations on water quality.\r\n\r\nThe annual mean discharge of the Taku River is 13,700 cubic feet per second. The monthly mean discharge ranges from a minimum of 1,940 cubic feet per second in February to a maximum of 34,400 cubic feet per second in June. Nearly 90 percent of the annual discharge is from May through November. The highest spring discharges are sourced primarily from snowmelt and moderate discharges are sustained throughout the summer by glacial meltwaters. An ice cover usually forms over the Taku River in December persisting through the winter into March and occasionally into April.\r\n\r\nGlacier-lake-outburst floods originating from two glacier-dammed lakes along the margin of the Tulsequah Glacier in British Columbia, Canada, are the source of the greatest peak discharges on the Taku River. The largest flood during the period of record was 128,000 cubic feet per second on June 25, 2004, resulting from an outburst of Lake No Lake. Lake No Lake is the larger of the two lakes. The outburst-flood contribution to peak discharge was 80,000 cubic feet per second. The volume discharged from Lake No Lake is relatively consistent indicating drainage may be triggered when the lake reaches a critical stage. This suggests prediction of the timing of these outburst floods might be possible if lake-stage data were available. Further increases in the volume of Lake No Lake are unlikely as all tributary glaciers have retreated out of the lake basin. Decreasing outburst-flood volumes from Tulsequah Lake suggests a continued decline in the volume of this lake.\r\n\r\nPhysical and chemical parameters and concentrations of basic water-quality constituents indicate good water quality. Samples collected at the Taku River gaging station contained low concentrations of trace elements in the dissolved phase. Trace elements sampled were within acceptable limits when compared with the Alaska Department of Environmental Conservation aquatic-life criteria for fresh waters. The highest concentrations of total trace elements sampled were collected during glacial-outburst floods and likely are associated with suspended sediments. Total trace-element concentrations generally increase with increasing water discharge, although a high correlation for all constituents sampled does not always exist.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20075027","collaboration":"Prepared in cooperation with the Douglas Indian Association,\r\nAlaska Department of Environmental Conservation, and the\r\nU.S. Environmental Protection Agency","usgsCitation":"Neal, E., 2007, Hydrology and glacier-lake-outburst floods (1987-2004) and water quality (1998-2003) of the Taku River near Juneau, Alaska: U.S. Geological Survey Scientific Investigations Report 2007-5027, vi, 28 p., https://doi.org/10.3133/sir20075027.","productDescription":"vi, 28 p.","numberOfPages":"34","temporalStart":"1987-01-01","temporalEnd":"2004-12-31","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":425579,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_80746.htm","linkFileType":{"id":5,"text":"html"}},{"id":9305,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5027/","linkFileType":{"id":5,"text":"html"}},{"id":190521,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Taku River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -131,\n 59.5\n ],\n [\n -134.5,\n 59.5\n ],\n [\n -134.5,\n 57.9\n ],\n [\n -131,\n 57.9\n ],\n [\n -131,\n 59.5\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e92c","contributors":{"authors":[{"text":"Neal, Edward G.","contributorId":68775,"corporation":false,"usgs":true,"family":"Neal","given":"Edward G.","affiliations":[],"preferred":false,"id":290531,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79660,"text":"fs20073013 - 2007 - International Polar Year: Science at the Ends of the Earth","interactions":[],"lastModifiedDate":"2012-02-02T00:14:10","indexId":"fs20073013","displayToPublicDate":"2007-02-27T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-3013","title":"International Polar Year: Science at the Ends of the Earth","docAbstract":"In response to unprecedented changes in the fragile polar regions of our planet, the International Polar Year (IPY) 2007-2008 will encompass many scientific studies designed to improve our understanding of polar change and its effects on Earth's ecosystems and people. For 2 years, U.S. Geological Survey (USGS) researchers will don arctic gear and join scientists from more than 60 countries to conduct coordinated research and analysis in the Arctic and Antarctic.\r\n\r\nPolar regions play a critical role in the global climate system-and changing conditions in these often remote areas greatly affect biological, atmospheric, and human systems around the world. In the 50 years since the last IPY, scientists have seen that Antarctic ice shelves and glaciers worldwide are thinning and retreating, permafrost is thawing, and Arctic sea-ice cover is decreasing. The loss of sea-ice cover adversely affects marine mammal populations and leaves coastal Alaskan villages vulnerable to winter storm erosion. Thawing permafrost threatens the integrity of roads, buildings, and other vulnerable infrastructure and affects the mobility of local populations.\r\n\r\n","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/fs20073013","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2007, International Polar Year: Science at the Ends of the Earth: U.S. Geological Survey Fact Sheet 2007-3013, 2 p., https://doi.org/10.3133/fs20073013.","productDescription":"2 p.","numberOfPages":"2","temporalStart":"2007-01-01","temporalEnd":"2008-12-31","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":9298,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2007/3013/","linkFileType":{"id":5,"text":"html"}},{"id":123132,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_2007_3013.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dae4b07f02db5e03dd","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":534840,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79642,"text":"ofr20071037 - 2007 - Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2005","interactions":[],"lastModifiedDate":"2012-02-10T00:11:45","indexId":"ofr20071037","displayToPublicDate":"2007-02-22T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1037","title":"Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2005","docAbstract":"OVERVIEW: This report contains water-quality and sediment-quality data from samples collected in the Yukon River Basin from March through September during the 2005 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers). A broad range of physical, chemical, and biological analyses are presented.\r\n\r\nThis is the final report in a series of five USGS Open-File Reports spanning five WYs, from October 2000 through September 2005. The previous four reports are listed in the references (Schuster, 2003, 2005a, 2005b, 2006). Water-quality and sediment-quality data from samples collected on the Yukon River and selected major tributaries in Alaska for synoptic studies during WYs 2002-03 are published in Dornblaser and Halm (2006).\r\n\r\n","language":"ENGLISH","doi":"10.3133/ofr20071037","usgsCitation":"Schuster, P.F., 2007, Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2005: U.S. Geological Survey Open-File Report 2007-1037, viii, 65 p., https://doi.org/10.3133/ofr20071037.","productDescription":"viii, 65 p.","numberOfPages":"73","temporalStart":"2005-05-01","temporalEnd":"2005-09-30","costCenters":[],"links":[{"id":195388,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9279,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1037/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 156,61 ], [ 156,68 ], [ 130,68 ], [ 130,61 ], [ 156,61 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a08e4b07f02db5fa386","contributors":{"authors":[{"text":"Schuster, Paul F. 0000-0002-8314-1372 pschuste@usgs.gov","orcid":"https://orcid.org/0000-0002-8314-1372","contributorId":1360,"corporation":false,"usgs":true,"family":"Schuster","given":"Paul","email":"pschuste@usgs.gov","middleInitial":"F.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":290464,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":79614,"text":"ofr20061387 - 2007 - Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia","interactions":[],"lastModifiedDate":"2020-11-04T15:14:20.775367","indexId":"ofr20061387","displayToPublicDate":"2007-02-04T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-1387","displayTitle":"Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia","title":"Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia","docAbstract":"

The Marbled Murrelet (Brachyramphus marmoratus) is a small, diving seabird inhabiting inshore waters of the Northeastern Pacific Ocean. This species feeds on small, schooling fishes and zooplankton, and nests primarily on the moss-covered branches of large, old-growth conifers, and also, in some parts of its range, on the ground. We reviewed existing information on this species to evaluate its current status in the northern part of its range—Alaska (U.S.) and British Columbia (Canada). Within the southern part of its range (Washington, Oregon, and California, U.S.), the Marbled Murrelet was listed as a threatened species under the Endangered Species Act (ESA) in 1993, and the U.S. Fish and Wildlife Service (USFWS) needed information on the species throughout its range for ESA deliberations. We compiled published information on the conservation status, population biology, foraging ecology, population genetics, population status and trends, demography, marine and nesting habitat characteristics, threats, and ongoing conservation efforts for Marbled Murrelets in Alaska and British Columbia. We conducted a new genetic study using samples from a segment of the range that had not been included in previous studies (Washington, Oregon) and additional nuclear intron and microsatellite markers. We also analyzed available at-sea survey data from several locations for trend. To understand the reasonableness of the empirical trend data, we developed demographic models incorporating stochasticity to discern what population trends were possible by chance. The genetic studies substantially confirmed previous findings on population structure in the Marbled Murrelet. Our present work finds three populations: (1) one comprising birds in the central and western Aleutian Islands; (2) one comprising birds in central California; and (3) one comprising birds within the center of the range from the eastern Aleutians to northern California. Our knowledge of genetic structure within this central population is limited and it requires additional study. Compiling available abundance information, we estimated that in the recent past, Marbled Murrelets in Alaska numbered on the order of 1 million birds. We were unable to generate a similar estimate for historical population size in British Columbia. Using trend information from at-sea surveys spanning a wide geographic range in Alaska, murrelet numbers declined significantly at five of eight trend sites at annual rates of -5.4 to -12.7 percent since the early 1990s. Applying these rates of decline to the historical population estimate, the current murrelet population in Alaska is projected to be on the order of 270,000 birds. This represents an overall population decline of about 70 percent during the past 25 years. In British Columbia, available trend data indicate that murrelet populations there have experienced similar declines. We updated a recent (2002) population estimate for British Columbia, concluding that there are now between 54,000 and 92,000 murrelets in British Columbia. The rates of decline we observed are within, but at the high end of, a range of rates expected by chance. Given that declines were estimated for sites over essentially the entire northern range of the species, there is cause for concern about the species’ status. In their marine habitats, Marbled Murrelets overlap with salmon (Oncorhynchus sp.) gillnetting operations in British Columbia and in Alaska (especially in Prince William Sound and Southeast Alaska), and annual bycatch mortality is likely in the low thousands per year, although bycatch rates are difficult to measure. The species’ inshore distribution coincides with high levels of vessel traffic and makes them especially vulnerable to both chronic oil pollution and to catastrophic spills (e.g., the 1989 Exxon Valdez oil spill [EVOS] in south-central Alaska, which is estimated to have killed 12,000 to 15,000 murrelets). In their forested nesting habitats, Marbled Murrelets have lost about 15 percent of their suitable nesting habitat in Southeast Alaska, and 33 to 49 percent in British Columbia, from industrial-scale logging within the past half century. Increased predation also may be a threat to murrelet populations, related to fragmentation and edge effects from logging and development, and recent population increases observed for some important murrelet predators, including Bald Eagles (Haliaeetus leucocephalus), Common Ravens (Corvus corax), and Steller’s Jays (Cyanocitta stelleri). Nesting habitat losses cannot explain the declines observed in areas where industrial logging has not occurred on a large scale (e.g., Prince William Sound) or at all (Glacier Bay). The apparent change in population size and rates of decline reported for the Marbled Murrelet are large, and we therefore considered alternative explanations and precedents for changes of similar magnitude in other marine wildlife populations in the Northeastern Pacific Ocean. The declines are likely real, and related to combined and cumulative effects from climate-related changes in the marine ecosystem (most likely the 1977 regime shift) and human activities (logging, gillnet bycatch, oil pollution). Much uncertainty about the decline could be alleviated by continuing to repeat boat surveys in Prince William Sound and lower Cook Inlet, and by repeating the boat survey of Southeast Alaska that was conducted in 1994. This survey used a statistically sound design and covered the region that has been and likely remains the center of the species’ abundance. Important questions remain to be addressed about methods for measuring population status and change, adult mortality (major sources, density dependence, seasonal concordance), and the movements of wintering populations.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20061387","usgsCitation":"Piatt, J.F., Kuletz, K., Burger, A., Hatch, S.A., Friesen, V.L., Birt, T., Arimitsu, M.L., Drew, G., Harding, A., and Bixler, K., 2007, Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia: U.S. Geological Survey Open-File Report 2006-1387, xiv, 258 p., https://doi.org/10.3133/ofr20061387.","productDescription":"xiv, 258 p.","numberOfPages":"274","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":194850,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9237,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2006/1387/","linkFileType":{"id":5,"text":"html"}}],"country":"Canada, United States","state":"Alaska, British Columbia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.98046874999999,\n 48.3416461723746\n ],\n [\n -122.607421875,\n 49.095452162534826\n ],\n [\n -128.583984375,\n 55.178867663281984\n ],\n [\n -135.703125,\n 59.5343180010956\n ],\n [\n -141.767578125,\n 60.80206374467983\n ],\n [\n -151.259765625,\n 62.30879369102805\n ],\n [\n -156.88476562499997,\n 59.0405546167585\n ],\n [\n -168.57421875,\n 54.36775852406841\n ],\n [\n -178.505859375,\n 52.16045455774706\n ],\n [\n -177.45117187499997,\n 50.90303283111257\n ],\n [\n -166.55273437499997,\n 52.802761415419674\n ],\n [\n -152.666015625,\n 56.41390137600676\n ],\n [\n -146.513671875,\n 59.355596110016315\n ],\n [\n -141.064453125,\n 59.085738569819505\n ],\n [\n -137.63671875,\n 57.040729838360875\n ],\n [\n -133.505859375,\n 52.53627304145948\n ],\n [\n -124.98046874999999,\n 48.3416461723746\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dbe4b07f02db5e117a","contributors":{"authors":[{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":290380,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kuletz, K.J.","contributorId":98002,"corporation":false,"usgs":true,"family":"Kuletz","given":"K.J.","affiliations":[],"preferred":false,"id":290382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burger, A.E.","contributorId":56605,"corporation":false,"usgs":true,"family":"Burger","given":"A.E.","email":"","affiliations":[],"preferred":false,"id":290375,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hatch, Scott A. 0000-0002-0064-8187 shatch@usgs.gov","orcid":"https://orcid.org/0000-0002-0064-8187","contributorId":2625,"corporation":false,"usgs":true,"family":"Hatch","given":"Scott","email":"shatch@usgs.gov","middleInitial":"A.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":290376,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Friesen, Vicki L.","contributorId":59407,"corporation":false,"usgs":false,"family":"Friesen","given":"Vicki","email":"","middleInitial":"L.","affiliations":[{"id":7029,"text":"Queen's University, Kingston, Ontario, Canada","active":true,"usgs":false}],"preferred":false,"id":290377,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Birt, T.P.","contributorId":82411,"corporation":false,"usgs":true,"family":"Birt","given":"T.P.","email":"","affiliations":[],"preferred":false,"id":290379,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Arimitsu, Mayumi L. 0000-0001-6982-2238 marimitsu@usgs.gov","orcid":"https://orcid.org/0000-0001-6982-2238","contributorId":140501,"corporation":false,"usgs":true,"family":"Arimitsu","given":"Mayumi","email":"marimitsu@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":290373,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Drew, G.S.","contributorId":95415,"corporation":false,"usgs":true,"family":"Drew","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":290381,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Harding, A.M.A.","contributorId":29088,"corporation":false,"usgs":true,"family":"Harding","given":"A.M.A.","email":"","affiliations":[],"preferred":false,"id":290374,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bixler, K.S.","contributorId":72889,"corporation":false,"usgs":true,"family":"Bixler","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":290378,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70174297,"text":"70174297 - 2007 - Foraging behaviors of Surf Scoters and White-Winged Scoters during spawning of Pacific herring","interactions":[],"lastModifiedDate":"2021-05-20T18:15:28.577479","indexId":"70174297","displayToPublicDate":"2007-02-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Foraging behaviors of Surf Scoters and White-Winged Scoters during spawning of Pacific herring","docAbstract":"

Winter diets of Surf (Melanitta perspicillata) and White-winged Scoters (M. fusca) are composed primarily of bivalves. During spawning of Pacific herring (Clupea pallasi) in early spring, scoters shift their diets to herring eggs. Using radio-telemetry, we contrasted scoter foraging behaviors between winter and herring spawning periods. Scoters increased their dive durations during herring spawning, likely to maximize the amount of roe consumed per dive; in winter, dives were typically terminated upon clam capture. Scoters spent approximately 50% less time foraging (min underwater hr−1) and decreased their dive rate (dives hr−1) by 70% when feeding on roe. The observed reduction in time spent foraging was presumably caused by the abundance of herring eggs, and thus a reduction in prey search-time. Scoters were able to meet energetic requirements with reduced effort, despite potentially increased demands related to spring fattening. Less time spent foraging may also allow more time for premigratory courtship behaviors.

","language":"English","publisher":"Oxford University Press","doi":"10.1093/condor/109.1.216","usgsCitation":"Esler, D., and Boyd, S., 2007, Foraging behaviors of Surf Scoters and White-Winged Scoters during spawning of Pacific herring: Condor, v. 109, no. 1, p. 216-222, https://doi.org/10.1093/condor/109.1.216.","productDescription":"7 p.","startPage":"216","endPage":"222","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476919,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/condor/109.1.216","text":"Publisher Index Page"},{"id":324818,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, Mexico, United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -157.5,\n 25.48295117535531\n ],\n [\n -114.2578125,\n 25.48295117535531\n ],\n [\n -114.2578125,\n 59.88893689676585\n ],\n [\n -157.5,\n 59.88893689676585\n ],\n [\n -157.5,\n 25.48295117535531\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"109","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"577f7d30e4b0ef4d2f45faac","contributors":{"authors":[{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":641731,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boyd, Sean","contributorId":76672,"corporation":false,"usgs":false,"family":"Boyd","given":"Sean","affiliations":[{"id":6962,"text":"Science and Technology Branch, Environment Canada","active":true,"usgs":false}],"preferred":false,"id":641732,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":79602,"text":"ds241 - 2007 - 3D Visualization of Earthquake Focal Mechanisms Using ArcScene","interactions":[],"lastModifiedDate":"2017-06-07T16:44:29","indexId":"ds241","displayToPublicDate":"2007-01-30T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"241","title":"3D Visualization of Earthquake Focal Mechanisms Using ArcScene","docAbstract":"

We created a new tool, 3D Focal Mechanisms (3DFM), for viewing earthquake focal mechanism symbols three dimensionally. This tool operates within the Environmental Systems Research Institute (ESRI®) GIS software ArcScene® 9.x. The program requires as input a GIS point dataset of earthquake locations containing strike, dip, and rake values for a nodal plane of each earthquake. Other information, such as depth and magnitude of the earthquake, may also be included in the dataset. By default for each focal point, 3DFM will create a black and white sphere or “beach ball” that is oriented based on the strike, dip, and rake values. If depth values for each earthquake are included, the focal symbol will also be placed at its appropriate location beneath the Earth's surface.

\n

In addition to the default settings, there are several other options in 3DFM that can be adjusted. The appearance of the symbols can be changed by (1) creating rings around the fault planes that are colored based on magnitude, (2) showing only the fault planes instead of a sphere, (3) drawing a flat disc that identifies the primary nodal plane, (4) or by displaying the null, pressure, and tension axes. The size of the symbols can be changed by adjusting their diameter, scaling them based on the magnitude of the earthquake, or scaling them by the estimated size of the rupture patch based on earthquake magnitude. It is also possible to filter the data using any combination of the strike, dip, rake, magnitude, depth, null axis plunge, pressure axis plunge, tension axis plunge, or fault type values of the points. For a large dataset, these filters can be used to create different subsets of symbols. Symbols created by 3DFM are stored in graphics layers that appear in the ArcScene® table of contents. Multiple graphics layers can be created and saved to preserve the output from different symbol options.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds241","usgsCitation":"Labay, K., and Haeussler, P.J., 2007, 3D Visualization of Earthquake Focal Mechanisms Using ArcScene (Version 1.1 (Revised Apr 2007)): U.S. Geological Survey Data Series 241, Report: 17 p.; 3DFM files, https://doi.org/10.3133/ds241.","productDescription":"Report: 17 p.; 3DFM files","numberOfPages":"17","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":195475,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9224,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/2007/241/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.1 (Revised Apr 2007)","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd492de4b0b290850eef1c","contributors":{"authors":[{"text":"Labay, Keith A. 0000-0002-6763-3190 klabay@usgs.gov","orcid":"https://orcid.org/0000-0002-6763-3190","contributorId":2097,"corporation":false,"usgs":true,"family":"Labay","given":"Keith A.","email":"klabay@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":false,"id":290339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":290338,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70175278,"text":"70175278 - 2007 - Effects of predation by sea ducks on clam abundance in soft-bottom intertidal habitats","interactions":[],"lastModifiedDate":"2016-08-03T15:39:30","indexId":"70175278","displayToPublicDate":"2007-01-11T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Effects of predation by sea ducks on clam abundance in soft-bottom intertidal habitats","docAbstract":"

Recent studies have documented strong, top-down predation effects of sea ducks on mussel populations in rocky intertidal communities. However, the impact of these gregarious predators in soft-bottom communities has been largely unexplored. We evaluated effects of predation by wintering surf scoters Melanitta perspicillata and white-winged scoters M. fusca on clam populations in soft-bottom intertidal habitats of the Strait of Georgia, British Columbia. Specifically, we documented spatial and temporal variation in clam density (clams m–2), scoter diet composition, and the consequences of scoter predation on clam abundance. Of the 3 most numerous clams, Manila clams Venerupis philippinarum and varnish clams Nuttallia obscurata were the primary prey items of both scoter species, while clams of the genus Macoma were rarely consumed by scoters. Between scoter arrival in the fall and departure in the spring, Manila clams decreased in density at most sample sites, while varnish clam densities did not change or declined slightly. Our estimates of numbers of clams consumed by scoters accounted for most of the observed declines in combined abundance of Manila and varnish clams, despite the presence of numerous other vertebrate and invertebrate species known to consume clams. For Macoma spp., we detected an over-winter increase in density, presumably due to growth of clams too small to be retained by our sieve (<5 mm) during fall sampling, in addition to the lack of predation pressure by scoters. These results illustrate the strong predation potential of scoters in soft-bottom intertidal habitats, as well as their potentially important role in shaping community structure.

","language":"English","publisher":"Inter-Research","publisherLocation":"Oldendorf/Luhe, Germany","doi":"10.3354/meps329131","usgsCitation":"Lewis, T., Esler, D., and Boyd, W.S., 2007, Effects of predation by sea ducks on clam abundance in soft-bottom intertidal habitats: Marine Ecology Progress Series, v. 329, p. 131-144, https://doi.org/10.3354/meps329131.","productDescription":"14 p.","startPage":"131","endPage":"144","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476927,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps329131","text":"Publisher Index Page"},{"id":326073,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"British Columbia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.99557495117186,\n 49.677403884483425\n ],\n [\n -124.7991943359375,\n 49.674737880665994\n ],\n [\n -124.62890625,\n 49.51005182543569\n ],\n [\n -124.70306396484376,\n 49.45294986406723\n ],\n [\n -124.74700927734374,\n 49.429733169930664\n ],\n [\n -124.81979370117188,\n 49.38863055043897\n ],\n [\n -125.12741088867188,\n 49.62049743433884\n ],\n [\n -124.99557495117186,\n 49.677403884483425\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"329","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57a315bee4b006cb45558a6b","contributors":{"authors":[{"text":"Lewis, Tyler 0000-0002-4998-3031 tlewis@usgs.gov","orcid":"https://orcid.org/0000-0002-4998-3031","contributorId":169307,"corporation":false,"usgs":true,"family":"Lewis","given":"Tyler","email":"tlewis@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":644662,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false}],"preferred":true,"id":644663,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boyd, W. Sean","contributorId":11048,"corporation":false,"usgs":true,"family":"Boyd","given":"W.","email":"","middleInitial":"Sean","affiliations":[],"preferred":false,"id":644664,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70047537,"text":"sir20075289B - 2007 - Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project","interactions":[],"lastModifiedDate":"2018-10-22T10:57:48","indexId":"sir20075289B","displayToPublicDate":"2007-01-01T15:21:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5289","chapter":"B","title":"Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project","docAbstract":"This paper summarizes the results of field and laboratory investigations, including whole-rock geochemistry and \nradiogenic isotopes, of outcrop and drill core samples from \nvolcanogenic massive sulfide (VMS) deposits and associated \nmetaigneous rocks in the Wood River area of the Bonnifield \nmining district, northern Alaska Range (see fig. 1 of Editors’ \nPreface and Overview). U-Pb zircon igneous crystallization \nages from felsic rocks indicate a prolonged period of Late \nDevonian to Early Mississippian (373±3 to 357±4 million \nyears before present, or Ma) magmatism. This magmatism \noccurred in a basinal setting along the ancient Pacific margin \nof North America. The siliceous and carbonaceous compositions of metasedimentary rocks, Precambrian model ages \nbased on U-Pb dating of zircon and neodymium ages, and \nfor some units, radiogenic neodymium isotopic compositions and whole-rock trace-element ratios similar to those of \ncontinental crust are evidence for this setting. Red Mountain \n(also known as Dry Creek) and WTF, two of the largest \nVMS deposits, are hosted in peralkaline metarhyolite of the \nMystic Creek Member of the Totatlanika Schist. The Mystic \nCreek Member is distinctive in having high concentrations of \nhigh-field-strength elements (HFSE) and rare-earth elements \n(REE), indicative of formation in a within-plate (extensional) \nsetting. Mystic Creek metarhyolite is associated with alkalic, \nwithin-plate basalt of the Chute Creek Member; neodymium \nisotopic data indicate an enriched mantle component for both \nmembers of this bimodal (rhyolite-basalt) suite. Anderson \nMountain, the other significant VMS deposit, is hosted by \nthe Wood River assemblage. Metaigneous rocks in the Wood \nRiver assemblage span a wide compositional range, including \nandesitic rocks, which are characteristic of arc volcanism. Our \ndata suggest that the Mystic Creek Member likely formed in \nan extensional, back-arc basin that was associated with an outboard continental-margin volcanic arc that included rocks of the Wood River assemblage. We suggest that elevated HFSE \nand REE trace-element contents of metavolcanic rocks, whose \nmajor-element composition may have been altered, are an \nimportant prospecting tool for rocks of VMS deposit potential \nin east-central Alaska.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20075289B","collaboration":"This report is Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project. For more information, see: Scientific Investigation Report 2007-5289.","usgsCitation":"Dusel-Bacon, C., Aleinikoff, J.N., Premo, W.R., Paradis, S., and Lohr-Schmidt, I., 2007, Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project: U.S. Geological Survey Scientific Investigations Report 2007-5289, iii, 7 p., https://doi.org/10.3133/sir20075289B.","productDescription":"iii, 7 p.","numberOfPages":"12","costCenters":[{"id":244,"text":"Eastern Mineral Resources Science Center","active":false,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":276243,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20075289b.png"},{"id":276241,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5289/"},{"id":276242,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2007/5289/SIR2007-5289-B.pdf"}],"country":"Canada;United States","state":"Alaska;Yukon","otherGeospatial":"Tintina Gold Province","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -163.0,59.0 ], [ -163.0,67.0 ], [ -126.0,67.0 ], [ -126.0,59.0 ], [ -163.0,59.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5204bdf0e4b0403aa6262a93","contributors":{"editors":[{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":509557,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":509558,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":482298,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":482296,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Premo, Wayne R. 0000-0001-9904-4801 wpremo@usgs.gov","orcid":"https://orcid.org/0000-0001-9904-4801","contributorId":1697,"corporation":false,"usgs":true,"family":"Premo","given":"Wayne","email":"wpremo@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":482297,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Paradis, Suzanne","contributorId":31666,"corporation":false,"usgs":true,"family":"Paradis","given":"Suzanne","email":"","affiliations":[],"preferred":false,"id":482299,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lohr-Schmidt, Ilana","contributorId":93370,"corporation":false,"usgs":true,"family":"Lohr-Schmidt","given":"Ilana","email":"","affiliations":[],"preferred":false,"id":482300,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}