We investigated magnetic susceptibility (MS) variations in hydrocarbon contaminated sediments. Our objective was to determine if MS can be used as an intrinsic bioremediation indicator due to the activity of iron-reducing bacteria. A contaminated and an uncontaminated core were retrieved from a site contaminated with crude oil near Bemidji, Minnesota and subsampled for MS measurements. The contaminated core revealed enriched MS zones within the hydrocarbon smear zone, which is related to iron-reduction coupled to oxidation of hydrocarbon compounds and the vadose zone, which is coincident with a zone of methane depletion suggesting aerobic or anaerobic oxidation of methane is coupled to iron-reduction. The latter has significant implications for methane cycling. We conclude that MS can serve as a proxy for intrinsic bioremediation due to the activity of iron-reducing bacteria iron-reducing bacteria and for the application of geophysics to iron cycling studies.
","language":"English","publisher":"AGU","doi":"10.1029/2011GL049271","issn":"00948276","usgsCitation":"Mewafy, F., Atekwana, E., Werkema, D., Slater, L., Ntarlagiannis, D., Revil, A., Skold, M., and Delin, G.N., 2011, Magnetic susceptibility as a proxy for investigating microbially mediated iron reduction: Geophysical Research Letters, v. 38, no. 21, 5 p., https://doi.org/10.1029/2011GL049271.","productDescription":"5 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":475135,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2011gl049271","text":"Publisher Index Page"},{"id":243195,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215395,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011GL049271"}],"country":"United States","state":"Minnesota ","city":"Bemidji","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -95.3173828125,\n 47.30903424774781\n ],\n [\n -94.537353515625,\n 47.30903424774781\n ],\n [\n -94.537353515625,\n 47.754097979680026\n ],\n [\n -95.3173828125,\n 47.754097979680026\n ],\n [\n -95.3173828125,\n 47.30903424774781\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"38","issue":"21","noUsgsAuthors":false,"publicationDate":"2011-11-09","publicationStatus":"PW","scienceBaseUri":"505a4b8de4b0c8380cd69619","contributors":{"authors":[{"text":"Mewafy, F.M.","contributorId":54032,"corporation":false,"usgs":true,"family":"Mewafy","given":"F.M.","affiliations":[],"preferred":false,"id":449618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Atekwana, E.A.","contributorId":94504,"corporation":false,"usgs":true,"family":"Atekwana","given":"E.A.","affiliations":[],"preferred":false,"id":449623,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Werkema, D.D.","contributorId":60021,"corporation":false,"usgs":true,"family":"Werkema","given":"D.D.","affiliations":[],"preferred":false,"id":449620,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Slater, L.D.","contributorId":63229,"corporation":false,"usgs":true,"family":"Slater","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":449621,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ntarlagiannis, D.","contributorId":57287,"corporation":false,"usgs":true,"family":"Ntarlagiannis","given":"D.","email":"","affiliations":[],"preferred":false,"id":449619,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Revil, A.","contributorId":49627,"corporation":false,"usgs":true,"family":"Revil","given":"A.","affiliations":[],"preferred":false,"id":449617,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Skold, M.","contributorId":71021,"corporation":false,"usgs":true,"family":"Skold","given":"M.","email":"","affiliations":[],"preferred":false,"id":449622,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Delin, Geoffrey N. 0000-0001-7991-6158 delin@usgs.gov","orcid":"https://orcid.org/0000-0001-7991-6158","contributorId":2610,"corporation":false,"usgs":true,"family":"Delin","given":"Geoffrey","email":"delin@usgs.gov","middleInitial":"N.","affiliations":[{"id":5063,"text":"Central Water Science Field Team","active":true,"usgs":true}],"preferred":true,"id":779878,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70034648,"text":"70034648 - 2011 - Shallow degassing events as a trigger for very-long-period seismicity at Kīlauea Volcano, Hawai‘i","interactions":[],"lastModifiedDate":"2012-12-10T16:04:44","indexId":"70034648","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Shallow degassing events as a trigger for very-long-period seismicity at Kīlauea Volcano, Hawai‘i","docAbstract":"The first eruptive activity at Kīlauea Volcano’s summit in 25 years began in March 2008 with the opening of a 35-m-wide vent in Halema‘uma‘u crater. The new activity has produced prominent very-long-period (VLP) signals corresponding with two new behaviors: episodic tremor bursts and small explosive events, both of which represent degassing events from the top of the lava column. Previous work has shown that VLP seismicity has long been present at Kīlauea’s summit, and is sourced approximately 1 km below Halema‘uma‘u. By integrating video observations, infrasound and seismic data, we show that the onset of the large VLP signals occurs within several seconds of the onset of the degassing events. This timing indicates that the VLP is caused by forces—sourced at or very near the lava free surface due to degassing—transmitted down the magma column and coupling to the surrounding rock at 1 km depth.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s00445-011-0475-y","issn":"02588900","usgsCitation":"Patrick, M., Wilson, D., Fee, D., Orr, T., and Swanson, D., 2011, Shallow degassing events as a trigger for very-long-period seismicity at Kīlauea Volcano, Hawai‘i: Bulletin of Volcanology, v. 73, no. 9, p. 1179-1186, https://doi.org/10.1007/s00445-011-0475-y.","productDescription":"8 p.","startPage":"1179","endPage":"1186","numberOfPages":"8","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":243759,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215923,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00445-011-0475-y"}],"country":"United States","state":"Hawai'i","otherGeospatial":"Kilauea Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.798371,19.056854 ], [ -155.798371,19.550464 ], [ -155.016307,19.550464 ], [ -155.016307,19.056854 ], [ -155.798371,19.056854 ] ] ] } } ] }","volume":"73","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-05-12","publicationStatus":"PW","scienceBaseUri":"505b8e1be4b08c986b318734","contributors":{"authors":[{"text":"Patrick, Matthew","contributorId":7523,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","affiliations":[],"preferred":false,"id":446855,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, David","contributorId":82048,"corporation":false,"usgs":true,"family":"Wilson","given":"David","affiliations":[],"preferred":false,"id":446857,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fee, David","contributorId":77761,"corporation":false,"usgs":true,"family":"Fee","given":"David","affiliations":[],"preferred":false,"id":446856,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Orr, Tim R. torr@usgs.gov","contributorId":3766,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","email":"torr@usgs.gov","affiliations":[],"preferred":false,"id":446854,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swanson, Donald A. 0000-0002-1680-3591 donswan@usgs.gov","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":3137,"corporation":false,"usgs":true,"family":"Swanson","given":"Donald A.","email":"donswan@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":446853,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035267,"text":"70035267 - 2011 - Modular filter-based approach to ground motion attenuation modeling","interactions":[],"lastModifiedDate":"2012-03-12T17:21:55","indexId":"70035267","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3372,"text":"Seismological Research Letters","onlineIssn":"1938-2057","printIssn":"0895-0695","active":true,"publicationSubtype":{"id":10}},"title":"Modular filter-based approach to ground motion attenuation modeling","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Seismological Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/gssrl.82.1.21","issn":"08950695","usgsCitation":"Graizer, V., and Kalkan, E., 2011, Modular filter-based approach to ground motion attenuation modeling: Seismological Research Letters, v. 82, no. 1, p. 21-31, https://doi.org/10.1785/gssrl.82.1.21.","startPage":"21","endPage":"31","numberOfPages":"11","costCenters":[],"links":[{"id":215218,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/gssrl.82.1.21"},{"id":243005,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-06","publicationStatus":"PW","scienceBaseUri":"505a5ce3e4b0c8380cd6ffef","contributors":{"authors":[{"text":"Graizer, V.","contributorId":88930,"corporation":false,"usgs":true,"family":"Graizer","given":"V.","email":"","affiliations":[],"preferred":false,"id":449960,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kalkan, E. 0000-0002-9138-9407","orcid":"https://orcid.org/0000-0002-9138-9407","contributorId":8212,"corporation":false,"usgs":true,"family":"Kalkan","given":"E.","affiliations":[],"preferred":false,"id":449959,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035720,"text":"70035720 - 2011 - Growth of plutons by incremental emplacement of sheets in crystal-rich host: Evidence from Miocene intrusions of the Colorado River region, Nevada, USA","interactions":[],"lastModifiedDate":"2021-02-16T20:34:09.345713","indexId":"70035720","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"Growth of plutons by incremental emplacement of sheets in crystal-rich host: Evidence from Miocene intrusions of the Colorado River region, Nevada, USA","docAbstract":"Growing evidence supports the notion that plutons are constructed incrementally, commonly over long periods of time, yet field evidence for the multiple injections that seem to be required is commonly sparse or absent. Timescales of up to several million years, among other arguments, indicate that the dominant volume does not remain largely molten, yet if growing plutons are constructed from rapidly solidifying increments it is unlikely that intrusive contacts would escape notice. A model wherein magma increments are emplaced into melt-bearing but crystal-rich host, rather than either solid or crystal-poor material, provides a plausible explanation for this apparent conundrum. A partially solidified intrusion undoubtedly comprises zones with contrasting melt fraction and therefore strength. Depending on whether these zones behave elastically or ductilely in response to dike emplacement, intruding magma may spread to form sheets by either of two mechanisms. If the melt-bearing host is elastic on the relevant timescale, magma spreads rather than continuing to propagate upward, where it encounters a zone of higher rigidity (higher crystal fraction). Similarly, if the dike at first ascends through rigid, melt-poor material and then encounters a zone that is weak enough (poor enough in crystals) to respond ductilely, the ascending material will also spread because the dike tip ceases to propagate as in rigid material. We propose that ascending magma is thus in essence trapped, by either mechanism, within relatively crystal-poor zones. Contacts will commonly be obscure from the start because the contrast between intruding material (crystal-poorer magma) and host (crystal-richer material) is subtle, and they may be obscured even further by subsequent destabilization of the crystal-melt framework.
Field evidence and zircon zoning stratigraphy in plutons of the Colorado River region of southern Nevada support the hypothesis that emplacement of magma replenishments into a crystal-laden host is important in pluton construction. The dominant granite unit of the Spirit Mountain batholith displays only subtle internal contacts. However, ages and elemental zoning in zircons demonstrate a protracted history of almost 2 million years, major fluctuations in T and host melt chemistry, and mixing of strongly contrasting populations of magmatic zircon in single samples. We interpret this to reflect reactivation of rigid sponge and mush and entrainment of earlier-formed crystals, and we infer that this was in response to granitic replenishment.
Much of the smaller Aztec Wash pluton comprises interlayered cumulate-textured quartz monzonite and mafic sheets. The latest phase of pluton emplacement is marked by numerous thick, fine-grained granite “sills” that intruded the subhorizontal quartz monzonite sheets. Contacts between granite and quartz monzonite are “soft,” highly irregular on cm–dm scale with coarse xenocrysts from the quartz monzonite entrained in the fine-grained granite. We interpret the granite replenishments to have spread laterally within crystal-rich, melt-bearing quartz monzonite beneath rigid mafic sheets. In this case, clear evidence for the emplacement process is fortuitously preserved because the granite was emplaced in the waning stage of the thermal lifetime of the pluton, and because the mafic sheets enhance the strength contrast and make the geometry more visible. Similar “sills” of fine-grained granite were also preserved during the late stages of the history of the Spirit Mountain batholith.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.tecto.2009.07.011","issn":"00401951","usgsCitation":"Miller, C.F., Furbish, D., Walker, B., Claiborne, L., Koteas, G., Bleick, H., and Miller, J., 2011, Growth of plutons by incremental emplacement of sheets in crystal-rich host: Evidence from Miocene intrusions of the Colorado River region, Nevada, USA: Tectonophysics, v. 500, no. 1-4, p. 65-77, https://doi.org/10.1016/j.tecto.2009.07.011.","productDescription":"13 p.","startPage":"65","endPage":"77","costCenters":[],"links":[{"id":243949,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216103,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.tecto.2009.07.011"}],"country":"United States","state":"Nevada","otherGeospatial":"Colorado River region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.37841796874999,\n 34.66935854524543\n ],\n [\n -114.169921875,\n 34.66935854524543\n ],\n [\n -114.169921875,\n 36.26199220445664\n ],\n [\n -115.37841796874999,\n 36.26199220445664\n ],\n [\n -115.37841796874999,\n 34.66935854524543\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"500","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2df9e4b0c8380cd5c1c2","contributors":{"authors":[{"text":"Miller, C. F.","contributorId":89971,"corporation":false,"usgs":true,"family":"Miller","given":"C.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":452053,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furbish, D.J.","contributorId":42058,"corporation":false,"usgs":true,"family":"Furbish","given":"D.J.","affiliations":[],"preferred":false,"id":452050,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walker, B.A.","contributorId":76119,"corporation":false,"usgs":true,"family":"Walker","given":"B.A.","affiliations":[],"preferred":false,"id":452052,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Claiborne, L.L.","contributorId":45543,"corporation":false,"usgs":true,"family":"Claiborne","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":452051,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Koteas, G.C.","contributorId":27291,"corporation":false,"usgs":true,"family":"Koteas","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":452049,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bleick, H.A.","contributorId":18600,"corporation":false,"usgs":true,"family":"Bleick","given":"H.A.","affiliations":[],"preferred":false,"id":452048,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Miller, J.S.","contributorId":12631,"corporation":false,"usgs":true,"family":"Miller","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":452047,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70034317,"text":"70034317 - 2011 - Genetic variation in westslope cutthroat trout Oncorhynchus clarkii lewisi: Implications for conservation","interactions":[],"lastModifiedDate":"2021-04-22T16:50:39.932265","indexId":"70034317","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1324,"text":"Conservation Genetics","active":true,"publicationSubtype":{"id":10}},"title":"Genetic variation in westslope cutthroat trout Oncorhynchus clarkii lewisi: Implications for conservation","docAbstract":"Twenty-five populations of westslope cutthroat trout from throughout their native range were genotyped at 20 microsatellite loci to describe the genetic structure of westslope cutthroat trout. The most genetic diversity (heterozygosity, allelic richness, and private alleles) existed in populations from the Snake River drainage, while populations from the Missouri River drainage had the least. Neighbor-joining trees grouped populations according to major river drainages. A great amount of genetic differentiation was present among and within all drainages. Based on Nei’s D S , populations in the Snake River were the most differentiated, while populations in the Missouri River were the least. This pattern of differentiation is consistent with a history of sequential founding events through which westslope cutthroat trout may have experienced a genetic bottleneck as they colonized each river basin from the Snake to the Clark Fork to the Missouri river. These data should serve as a starting point for a discussion on management units and possible distinct population segments. Given the current threats to the persistence of westslope cutthroat trout, and the substantial genetic differentiation between populations, these topics warrant attention.
","language":"English","publisher":"Springer Link","doi":"10.1007/s10592-011-0249-2","issn":"15660621","usgsCitation":"Drinan, D., Kalinowski, S., Vu, N., Shepard, B., Muhlfeld, C., and Campbell, M.R., 2011, Genetic variation in westslope cutthroat trout Oncorhynchus clarkii lewisi: Implications for conservation: Conservation Genetics, v. 12, no. 6, p. 1513-1523, https://doi.org/10.1007/s10592-011-0249-2.","productDescription":"11 p.","startPage":"1513","endPage":"1523","costCenters":[],"links":[{"id":244558,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216673,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10592-011-0249-2"}],"country":"United States","state":"Idaho, Montana","otherGeospatial":"Missouri River, Clark Fork River, Snake River, and Saint Mary River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.0703125,\n 43.35713822211053\n ],\n [\n -108.45703125,\n 43.35713822211053\n ],\n [\n -108.45703125,\n 49.023461463214126\n ],\n [\n -117.0703125,\n 49.023461463214126\n ],\n [\n -117.0703125,\n 43.35713822211053\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"12","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-07-29","publicationStatus":"PW","scienceBaseUri":"505a158ee4b0c8380cd54e88","contributors":{"authors":[{"text":"Drinan, D.P.","contributorId":93729,"corporation":false,"usgs":true,"family":"Drinan","given":"D.P.","affiliations":[],"preferred":false,"id":445217,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kalinowski, S.T.","contributorId":26899,"corporation":false,"usgs":true,"family":"Kalinowski","given":"S.T.","affiliations":[],"preferred":false,"id":445214,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vu, N.V.","contributorId":78583,"corporation":false,"usgs":true,"family":"Vu","given":"N.V.","email":"","affiliations":[],"preferred":false,"id":445215,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shepard, B.B.","contributorId":107054,"corporation":false,"usgs":true,"family":"Shepard","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":445219,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Muhlfeld, C.C.","contributorId":97850,"corporation":false,"usgs":true,"family":"Muhlfeld","given":"C.C.","affiliations":[],"preferred":false,"id":445218,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Campbell, M. R.","contributorId":92639,"corporation":false,"usgs":true,"family":"Campbell","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":445216,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70034650,"text":"70034650 - 2011 - Sex-related differences in habitat associations of wintering American Kestrels in California's Central Valley","interactions":[],"lastModifiedDate":"2021-04-14T16:45:27.655447","indexId":"70034650","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2442,"text":"Journal of Raptor Research","active":true,"publicationSubtype":{"id":10}},"title":"Sex-related differences in habitat associations of wintering American Kestrels in California's Central Valley","docAbstract":"We used roadside survey data collected from 19 routes over three consecutive winters from 2007–08 to 2009–10 to compare habitat associations of male and female American Kestrels (Falco sparverius) in the Central Valley of California to determine if segregation by sex was evident across this region. As a species, American Kestrels showed positive associations with alfalfa and other forage crops like hay and winter wheat, as well as grassland, irrigated pasture, and rice. Habitat associations of females were similar, with female densities in all these habitats except rice significantly higher than average. Male American Kestrels showed a positive association only with grassland and were present at densities well below those of females in alfalfa, other forage crops, and grassland. Males were present in higher densities than females in most habitats with negative associations for the species, such as orchards, urbanized areas, and oak savannah. The ratio of females to males for each route was positively correlated with the overall density of American Kestrels on that route. Our findings that females seem to occupy higher quality habitats in winter are consistent with observations from elsewhere in North America.
","language":"English","publisher":"BioOne","doi":"10.3356/JRR-10-66.1","issn":"08921016","usgsCitation":"Pandolfino, E., Herzog, M., and Smith, Z., 2011, Sex-related differences in habitat associations of wintering American Kestrels in California's Central Valley: Journal of Raptor Research, v. 45, no. 3, p. 236-243, https://doi.org/10.3356/JRR-10-66.1.","productDescription":"8 p.","startPage":"236","endPage":"243","costCenters":[],"links":[{"id":475446,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3356/jrr-10-66.1","text":"Publisher Index Page"},{"id":243789,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215952,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3356/JRR-10-66.1"}],"country":"United States","state":"California","otherGeospatial":"Central Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.234375,\n 35.782170703266075\n ],\n [\n -117.42187500000001,\n 33.65120829920497\n ],\n [\n -116.806640625,\n 33.063924198120645\n ],\n [\n -115.04882812499999,\n 34.23451236236987\n ],\n [\n -119.970703125,\n 37.996162679728116\n ],\n [\n -121.55273437499999,\n 40.27952566881291\n ],\n [\n -122.431640625,\n 40.91351257612758\n ],\n [\n -123.31054687499999,\n 40.51379915504413\n ],\n [\n -121.59667968749999,\n 37.020098201368114\n ],\n [\n -120.234375,\n 35.782170703266075\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"45","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8dafe4b08c986b3184d9","contributors":{"authors":[{"text":"Pandolfino, E.R.","contributorId":65299,"corporation":false,"usgs":true,"family":"Pandolfino","given":"E.R.","affiliations":[],"preferred":false,"id":446865,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Herzog, M.P.","contributorId":37865,"corporation":false,"usgs":true,"family":"Herzog","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":446863,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, Z.","contributorId":53192,"corporation":false,"usgs":true,"family":"Smith","given":"Z.","email":"","affiliations":[],"preferred":false,"id":446864,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70034989,"text":"70034989 - 2011 - Comment on \"A model of earthquake triggering probabilities and application to dynamic deformations constrained by ground motion observations\" by Joan Gomberg and Karen Felzer","interactions":[],"lastModifiedDate":"2012-12-13T21:05:44","indexId":"70034989","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Comment on \"A model of earthquake triggering probabilities and application to dynamic deformations constrained by ground motion observations\" by Joan Gomberg and Karen Felzer","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2010JB008094","issn":"01480227","usgsCitation":"Stein, R., 2011, Comment on \"A model of earthquake triggering probabilities and application to dynamic deformations constrained by ground motion observations\" by Joan Gomberg and Karen Felzer: Journal of Geophysical Research B: Solid Earth, v. 116, no. 3, 3 p.; B03312, https://doi.org/10.1029/2010JB008094.","productDescription":"3 p.; B03312","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":215441,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010JB008094"},{"id":243248,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"116","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-03-30","publicationStatus":"PW","scienceBaseUri":"5059f7e9e4b0c8380cd4cd94","contributors":{"authors":[{"text":"Stein, R.S.","contributorId":8875,"corporation":false,"usgs":true,"family":"Stein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":448728,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70034663,"text":"70034663 - 2011 - Geographic profiling to assess the risk of rare plant poaching in natural areas","interactions":[],"lastModifiedDate":"2019-04-03T13:42:29","indexId":"70034663","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Geographic profiling to assess the risk of rare plant poaching in natural areas","docAbstract":"We demonstrate the use of an expert-assisted spatial model to examine geographic factors influencing the poaching risk of a rare plant (American ginseng, Panax quinquefolius L.) in Shenandoah National Park, Virginia, USA. Following principles of the analytic hierarchy process (AHP), we identified a hierarchy of 11 geographic factors deemed important to poaching risk and requested law enforcement personnel of the National Park Service to rank those factors in a series of pair-wise comparisons. We used those comparisons to determine statistical weightings of each factor and combined them into a spatial model predicting poaching risk. We tested the model using 69 locations of previous poaching incidents recorded by law enforcement personnel. These locations occurred more frequently in areas predicted by the model to have a higher risk of poaching than random locations. The results of our study can be used to evaluate resource protection strategies and to target law enforcement activities.
","language":"English","publisher":"Springer","doi":"10.1007/s00267-011-9687-3","issn":"0364152X","usgsCitation":"Young, J., Van Manen, F., and Thatcher, C., 2011, Geographic profiling to assess the risk of rare plant poaching in natural areas: Environmental Management, v. 48, no. 3, p. 577-587, https://doi.org/10.1007/s00267-011-9687-3.","productDescription":"11 p.","startPage":"577","endPage":"587","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":243481,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215662,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00267-011-9687-3"}],"volume":"48","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-05-20","publicationStatus":"PW","scienceBaseUri":"505a177fe4b0c8380cd5550e","contributors":{"authors":[{"text":"Young, J.A. 0000-0002-4500-3673","orcid":"https://orcid.org/0000-0002-4500-3673","contributorId":37674,"corporation":false,"usgs":true,"family":"Young","given":"J.A.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":446928,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Manen, F.T.","contributorId":45241,"corporation":false,"usgs":true,"family":"Van Manen","given":"F.T.","email":"","affiliations":[],"preferred":false,"id":446929,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thatcher, C.A. 0000-0003-0331-071X","orcid":"https://orcid.org/0000-0003-0331-071X","contributorId":13425,"corporation":false,"usgs":true,"family":"Thatcher","given":"C.A.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":446927,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70034654,"text":"70034654 - 2011 - Redefinition of the crater-density and absolute-age boundaries for the chronostratigraphic system of Mars","interactions":[],"lastModifiedDate":"2021-04-14T16:18:22.864677","indexId":"70034654","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Redefinition of the crater-density and absolute-age boundaries for the chronostratigraphic system of Mars","docAbstract":"For the boundaries of each chronostratigraphic epoch on Mars, we present systematically derived crater-size frequencies based on crater counts of geologic referent surfaces and three proposed “standard” crater size–frequency production distributions as defined by (a) a simple −2 power law, (b) Neukum and Ivanov, (c) Hartmann. In turn, these crater count values are converted to model-absolute ages based on the inferred cratering rate histories. We present a new boundary definition for the Late Hesperian–Early Amazonian transition. Our fitting of crater size–frequency distributions to the chronostratigraphic record of Mars permits the assignment of cumulative counts of craters down to 100 m, 1 km, 2 km, 5 km, and 16 km diameters to martian epochs. Due to differences in the “standard” crater size–frequency production distributions, a generalized crater-density-based definition to the chronostratigraphic system cannot be provided. For the diameter range used for the boundary definitions, the resulting model absolute age fits vary within 1.5% for a given set of production function and chronology model ages. Crater distributions translated to absolute ages utilizing different curve descriptions can result in absolute age differences exceeding 10%.
","largerWorkTitle":"Icarus","language":"English","publisher":"Elsevier","doi":"10.1016/j.icarus.2011.07.024","issn":"00191035","usgsCitation":"Werner, S., and Tanaka, K.L., 2011, Redefinition of the crater-density and absolute-age boundaries for the chronostratigraphic system of Mars: Icarus, v. 215, no. 2, p. 603-607, https://doi.org/10.1016/j.icarus.2011.07.024.","productDescription":"5 p.","startPage":"603","endPage":"607","costCenters":[],"links":[{"id":243851,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216012,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.icarus.2011.07.024"}],"volume":"215","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a3a8e4b0e8fec6cdb906","contributors":{"authors":[{"text":"Werner, S.C.","contributorId":22170,"corporation":false,"usgs":true,"family":"Werner","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":446878,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tanaka, K. L.","contributorId":31394,"corporation":false,"usgs":false,"family":"Tanaka","given":"K.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":446879,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70034568,"text":"70034568 - 2011 - Birth seasonality and offspring production in threatened neotropical primates related to climate","interactions":[],"lastModifiedDate":"2021-04-16T17:36:40.11313","indexId":"70034568","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1837,"text":"Global Change Biology","active":true,"publicationSubtype":{"id":10}},"title":"Birth seasonality and offspring production in threatened neotropical primates related to climate","docAbstract":"Given the threatened status of many primate species, the impacts of global warming on primate reproduction and, consequently, population growth should be of concern. We examined relations between climatic variability and birth seasonality, offspring production, and infant sex ratios in two ateline primates, northern muriquis, and woolly monkeys. In both species, the annual birth season was delayed by dry conditions and El Niño years, and delayed birth seasons were linked to lower birth rates. Additionally, increased mean annual temperatures were associated with lower birth rates for northern muriquis. Offspring sex ratios varied with climatic conditions in both species, but in different ways: directly in woolly monkeys and indirectly in northern muriquis. Woolly monkeys displayed an increase in the proportion of males among offspring in association with El Niño events, whereas in northern muriquis, increases in the proportion of males among offspring were associated with delayed onset of the birth season, which itself was related, although weakly, to warm, dry conditions. These results illustrate that global warming, increased drought frequency, and changes in the frequency of El Niño events could limit primate reproductive output, threatening the persistence and recovery of ateline primate populations.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2486.2011.02427.x","issn":"13541013","usgsCitation":"Wiederholt, R., and Post, E., 2011, Birth seasonality and offspring production in threatened neotropical primates related to climate: Global Change Biology, v. 17, no. 10, p. 3035-3045, https://doi.org/10.1111/j.1365-2486.2011.02427.x.","productDescription":"11 p.","startPage":"3035","endPage":"3045","costCenters":[],"links":[{"id":243509,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215688,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2486.2011.02427.x"}],"volume":"17","issue":"10","noUsgsAuthors":false,"publicationDate":"2011-04-20","publicationStatus":"PW","scienceBaseUri":"5059f1cfe4b0c8380cd4ae31","contributors":{"authors":[{"text":"Wiederholt, R.","contributorId":34350,"corporation":false,"usgs":true,"family":"Wiederholt","given":"R.","email":"","affiliations":[],"preferred":false,"id":446441,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Post, E.","contributorId":25736,"corporation":false,"usgs":false,"family":"Post","given":"E.","email":"","affiliations":[{"id":6738,"text":"The Pennsylvania State University","active":true,"usgs":false}],"preferred":false,"id":446440,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70034309,"text":"70034309 - 2011 - Late Pliocene and Quaternary Eurasian locust infestations in the Canary Archipelago","interactions":[],"lastModifiedDate":"2021-04-22T19:20:30.832556","indexId":"70034309","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2614,"text":"Lethaia","active":true,"publicationSubtype":{"id":10}},"title":"Late Pliocene and Quaternary Eurasian locust infestations in the Canary Archipelago","docAbstract":"The Canary Archipelago has long been a sensitive location to record climate changes of the past. Interbedded with its basalt lavas are marine deposits from the principal Pleistocene interglacials, as well as aeolian sands with intercalated palaeosols. The palaeosols contain African dust and innumerable relict egg pods of a temperate‐region locust (cf. Dociostaurus maroccanusThunberg 1815). New ecological and stratigraphical information reveals the geological history of locust plagues (or infestations) and their palaeoclimatic significance. Here, we show that the first arrival of the plagues to the Canary Islands from Africa took place near the end of the Pliocene, ca. 3 Ma, and reappeared with immense strength during the middle Late Pleistocene preceding MIS (marine isotope stage) 11 (ca. 420 ka), MIS 5.5 (ca. 125 ka) and probably during other warm interglacials of the late Middle Pleistocene and the Late Pleistocene. During the Early Holocene, locust plagues may have coincided with a brief cool period in the current interglacial. Climatically, locust plagues on the Canaries are a link in the chain of full‐glacial arid–cold climate (calcareous dunes), early interglacial arid–sub‐humid climate (African dust inputs and locust plagues), peak interglacial warm–humid climate (marine deposits with Senegalese fauna), transitional arid–temperate climate (pedogenic calcretes), and again full‐glacial arid–cold climate (calcareous dunes) oscillations. During the principal interglacials of the Pleistocene, the Canary Islands recorded the migrations of warm Senegalese marine faunas to the north, crossing latitudes in the Euro‐African Atlantic. However, this northward marine faunal migration was preceded in the terrestrial realm by interglacial infestations of locusts.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1502-3931.2010.00255.x","issn":"00241164","usgsCitation":"Meco, J., Muhs, D., Fontugne, M., Ramos, A., Lomoschitz, A., and Patterson, D., 2011, Late Pliocene and Quaternary Eurasian locust infestations in the Canary Archipelago: Lethaia, v. 44, no. 4, p. 440-454, https://doi.org/10.1111/j.1502-3931.2010.00255.x.","productDescription":"15 p.","startPage":"440","endPage":"454","costCenters":[],"links":[{"id":489036,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10553/17953","text":"External Repository"},{"id":244435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216557,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1502-3931.2010.00255.x"}],"volume":"44","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a451be4b0c8380cd67040","contributors":{"authors":[{"text":"Meco, J.","contributorId":48412,"corporation":false,"usgs":true,"family":"Meco","given":"J.","affiliations":[],"preferred":false,"id":445180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Muhs, D.R. 0000-0001-7449-251X","orcid":"https://orcid.org/0000-0001-7449-251X","contributorId":61460,"corporation":false,"usgs":true,"family":"Muhs","given":"D.R.","affiliations":[],"preferred":false,"id":445182,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fontugne, M.","contributorId":74225,"corporation":false,"usgs":true,"family":"Fontugne","given":"M.","email":"","affiliations":[],"preferred":false,"id":445183,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ramos, A.J.","contributorId":61265,"corporation":false,"usgs":true,"family":"Ramos","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":445181,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lomoschitz, A.","contributorId":7531,"corporation":false,"usgs":true,"family":"Lomoschitz","given":"A.","affiliations":[],"preferred":false,"id":445179,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Patterson, D.","contributorId":91216,"corporation":false,"usgs":true,"family":"Patterson","given":"D.","email":"","affiliations":[],"preferred":false,"id":445184,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70034655,"text":"70034655 - 2011 - Zircon from historic eruptions in Iceland: Reconstructing storage and evolution of silicic magmas","interactions":[],"lastModifiedDate":"2021-04-14T16:05:11.081642","indexId":"70034655","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2751,"text":"Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Zircon from historic eruptions in Iceland: Reconstructing storage and evolution of silicic magmas","docAbstract":"Zoning patterns, U-Th disequilibria ages, and elemental compositions of zircon from eruptions of Askja (1875 AD), Hekla (1158 AD), Öræfajökull (1362 AD) and Torfajökull (1477 AD, 871 AD, 3100 BP, 7500 BP) provide insights into the complex, extended, histories of silicic magmatic systems in Iceland. Zircon compositions, which are correlated with proximity to the main axial rift, are distinct from those of mid-ocean ridge environments and fall at the low-Hf edge of the range of continental zircon. Morphology, zoning patterns, compositions, and U-Th ages all indicate growth and storage in subvolcanic silicic mushes or recently solidified rock at temperatures above the solidus but lower than that of the erupting magma. The eruptive products were likely ascending magmas that entrained a zircon “cargo” that formed thousands to tens of thousands of years prior to the eruptions.
","language":"English","publisher":"Springer Link","doi":"10.1007/s00710-011-0169-3","issn":"09300708","usgsCitation":"Carley, T., Miller, C.F., Wooden, J.L., Bindeman, I., and Barth, A.P., 2011, Zircon from historic eruptions in Iceland: Reconstructing storage and evolution of silicic magmas: Mineralogy and Petrology, v. 102, no. 1-4, p. 135-161, https://doi.org/10.1007/s00710-011-0169-3.","productDescription":"27 p.","startPage":"135","endPage":"161","costCenters":[],"links":[{"id":243378,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215566,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00710-011-0169-3"}],"country":"Iceland","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-14.5087,66.45589],[-14.73964,65.80875],[-13.60973,65.12667],[-14.90983,64.36408],[-17.79444,63.67875],[-18.65625,63.49638],[-19.97275,63.64363],[-22.76297,63.96018],[-21.77848,64.40212],[-23.95504,64.89113],[-22.1844,65.08497],[-22.22742,65.37859],[-24.32618,65.61119],[-23.65051,66.26252],[-22.13492,66.41047],[-20.57628,65.73211],[-19.05684,66.2766],[-17.79862,65.99385],[-16.16782,66.52679],[-14.5087,66.45589]]]},\"properties\":{\"name\":\"Iceland\"}}]}","volume":"102","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2011-08-26","publicationStatus":"PW","scienceBaseUri":"505bd28ce4b08c986b32f895","contributors":{"authors":[{"text":"Carley, T.L.","contributorId":83756,"corporation":false,"usgs":true,"family":"Carley","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":446882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, C. 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We tagged 355 green sturgeon with acoustic transmitters on their spawning grounds and in known nonspawning aggregation sites and examined their movement among these sites and other potentially important locations using automated data‐logging hydrophones. We found that green sturgeon inhabit a number of estuarine and coastal sites over the summer, including the Columbia River estuary, Willapa Bay, Grays Harbor, and the estuaries of certain smaller rivers in Oregon, especially the Umpqua River estuary. Green sturgeon from different natal rivers exhibited different patterns of habitat use; most notably, San Francisco Bay was used only by Sacramento River fish, while the Umpqua River estuary was used mostly by fish from the Klamath and Rogue rivers. Earlier work, based on analysis of microsatellite markers, suggested that the Columbia River mixed stock was mainly composed of fish from the Sacramento River, but our results indicate that fish from the Rogue and Klamath River populations frequently use the Columbia River as well. We also found evidence for the existence of migratory contingents within spawning populations. Our findings have significant implications for the management of the threatened Sacramento River population of green sturgeon, which migrates to inland waters outside of California where anthropogenic impacts, including fisheries bycatch and water pollution, may be a concern. Our results also illustrate the utility of acoustic tracking to elucidate the migratory behavior of animals that are otherwise difficult to observe.
","language":"English","publisher":"American Fisheries Society","doi":"10.1080/00028487.2011.557017","usgsCitation":"Lindley, S., Erickson, D., Moser, M., Williams, G., Langness, O., McCovey, B., Belchik, M., Vogel, D., Pinnix, W., Kelly, J., Heublein, J., and Klimley, A., 2011, Electronic tagging of green sturgeon reveals population structure and movement among estuaries: Transactions of the American Fisheries Society, v. 140, no. 1, p. 108-122, https://doi.org/10.1080/00028487.2011.557017.","productDescription":"15 p.","startPage":"108","endPage":"122","numberOfPages":"15","costCenters":[],"links":[{"id":242888,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":378342,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://afspubs.onlinelibrary.wiley.com/doi/10.1080/00028487.2011.557017"}],"country":"United States","state":"California, Oregon, Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.43115234375,\n 46.09609080214316\n ],\n [\n -123.167724609375,\n 46.09609080214316\n ],\n [\n -123.167724609375,\n 47.29413372501023\n ],\n [\n -124.43115234375,\n 47.29413372501023\n ],\n [\n -124.43115234375,\n 46.09609080214316\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.6014404296875,\n 42.33418438593939\n ],\n [\n -123.17321777343749,\n 42.33418438593939\n ],\n [\n -123.17321777343749,\n 44.66474608911831\n ],\n [\n -124.6014404296875,\n 44.66474608911831\n ],\n [\n -124.6014404296875,\n 42.33418438593939\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.8046875,\n 39.99395569397331\n ],\n [\n -122.10205078125,\n 39.99395569397331\n ],\n [\n -122.10205078125,\n 41.85319643776675\n ],\n [\n -124.8046875,\n 41.85319643776675\n ],\n [\n -124.8046875,\n 39.99395569397331\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.06884765625,\n 37.17782559332976\n ],\n [\n -120.21240234375001,\n 37.17782559332976\n ],\n [\n -120.21240234375001,\n 40.245991504199026\n ],\n [\n -123.06884765625,\n 40.245991504199026\n ],\n [\n -123.06884765625,\n 37.17782559332976\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"140","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-02-25","publicationStatus":"PW","scienceBaseUri":"505a08ace4b0c8380cd51c0b","contributors":{"authors":[{"text":"Lindley, S.T.","contributorId":58458,"corporation":false,"usgs":true,"family":"Lindley","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":449109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Erickson, D.L.","contributorId":82496,"corporation":false,"usgs":true,"family":"Erickson","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":449113,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moser, M.L.","contributorId":92006,"corporation":false,"usgs":true,"family":"Moser","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":449114,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, G.","contributorId":73428,"corporation":false,"usgs":true,"family":"Williams","given":"G.","affiliations":[],"preferred":false,"id":449112,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Langness, O.P.","contributorId":24585,"corporation":false,"usgs":true,"family":"Langness","given":"O.P.","affiliations":[],"preferred":false,"id":449105,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McCovey, B.W. 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In the Highland Range volcanic sequence, sphene appears as a phenocryst only in the most evolved rocks (72–77 mass% SiO2; matrix glass 77–78 mass% SiO2). Zr-in-sphene temperatures of crystallization are mostly restricted to 715 and 755°C, in contrast to zircon (710–920°C, Ti-in-zircon thermometry). Sphene rim/glass Kds for rare earth elements are extremely high (La 120, Sm 1200, Gd 1300, Lu 240). Rare earth elements, especially the middle REE (MREE), decrease from centers to rims of sphene phenocrysts along with Zr, demonstrating the effect of progressive sphene fractionation. Whole rocks and glasses have MREE-depleted, U-shaped REE patterns as a consequence of sphene fractionation. Within the co-genetic, sphene-rich Searchlight pluton, only evolved leucogranites show comparable MREE depletion. These results indicate that sphene saturation in intruded and extruded magmas occurred only in highly evolved melts: abundant sphene in less silicic plutonic rocks represents a late-stage ‘bloom’ in fractionated interstitial melt.
","language":"English","publisher":"Springer","doi":"10.1007/s00710-011-0177-3","issn":"09300708","usgsCitation":"Colombini, L., Miller, C.F., Gualda, G., Wooden, J.L., and Miller, J., 2011, Sphene and zircon in the Highland Range volcanic sequence (Miocene, southern Nevada, USA): Elemental partitioning, phase relations, and influence on evolution of silicic magma: Mineralogy and Petrology, v. 102, no. 1-4, p. 29-50, https://doi.org/10.1007/s00710-011-0177-3.","productDescription":"22 p.","startPage":"29","endPage":"50","costCenters":[],"links":[{"id":243379,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Southern Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.78216552734374,\n 35.991340960635405\n ],\n [\n -114.79339599609375,\n 35.16931803601131\n ],\n [\n -114.68353271484375,\n 35.22542873333704\n ],\n [\n -114.774169921875,\n 36.31291199724548\n ],\n [\n -116.07330322265625,\n 36.38591277287651\n ],\n [\n -115.78216552734374,\n 35.991340960635405\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"102","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2011-09-27","publicationStatus":"PW","scienceBaseUri":"505b95c2e4b08c986b31b0e5","contributors":{"authors":[{"text":"Colombini, L.L.","contributorId":36773,"corporation":false,"usgs":true,"family":"Colombini","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":446886,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, C. 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L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":446887,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Miller, J.S.","contributorId":12631,"corporation":false,"usgs":true,"family":"Miller","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":446885,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70034584,"text":"70034584 - 2011 - Projected evolution of California's San Francisco bay-delta-river system in a century of climate change","interactions":[],"lastModifiedDate":"2020-01-11T12:15:17","indexId":"70034584","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2980,"text":"PLoS ONE","active":true,"publicationSubtype":{"id":10}},"title":"Projected evolution of California's San Francisco bay-delta-river system in a century of climate change","docAbstract":"Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding, and growing challenges to sustainability of native species. Methodology/Principal Findings: We linked a series of models to investigate responses of California's San Francisco Estuary-Watershed (SFEW) system to two contrasting scenarios of climate change. Model outputs for scenarios of fast and moderate warming are presented as 2010-2099 projections of nine indicators of changing climate, hydrology and habitat quality. Trends of these indicators measure rates of: increasing air and water temperatures, salinity and sea level; decreasing precipitation, runoff, snowmelt contribution to runoff, and suspended sediment concentrations; and increasing frequency of extreme environmental conditions such as water temperatures and sea level beyond the ranges of historical observations. Conclusions/Significance: Most of these environmental indicators change substantially over the 21st century, and many would present challenges to natural and managed systems. Adaptations to these changes will require flexible planning to cope with growing risks to humans and the challenges of meeting demands for fresh water and sustaining native biota. Programs of ecosystem rehabilitation and biodiversity conservation in coastal landscapes will be most likely to meet their objectives if they are designed from considerations that include: (1) an integrated perspective that river-estuary systems are influenced by effects of climate change operating on both watersheds and oceans; (2) varying sensitivity among environmental indicators to the uncertainty of future climates; (3) inevitability of biological community changes as responses to cumulative effects of climate change and other drivers of habitat transformations; and (4) anticipation and adaptation to the growing probability of ecosystem regime shifts.","language":"English","publisher":"PLoS","doi":"10.1371/journal.pone.0024465","issn":"19326203","usgsCitation":"Cloern, J.E., Knowles, N., Brown, L.R., Cayan, D.R., Dettinger, M., Morgan, T., Schoellhamer, D., Stacey, M., Van der Wegen, M., Wagner, R., and Jassby, A.D., 2011, Projected evolution of California's San Francisco bay-delta-river system in a century of climate change: PLoS ONE, v. 6, no. 9, e24465, 13 p., https://doi.org/10.1371/journal.pone.0024465.","productDescription":"e24465, 13 p.","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":487226,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1371/journal.pone.0024465","text":"Publisher Index Page"},{"id":243755,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.09631347656249,\n 37.391981943533544\n ],\n [\n -121.87683105468749,\n 37.391981943533544\n ],\n [\n -121.87683105468749,\n 38.302869955150044\n ],\n [\n -123.09631347656249,\n 38.302869955150044\n ],\n [\n -123.09631347656249,\n 37.391981943533544\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"6","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-09-21","publicationStatus":"PW","scienceBaseUri":"505a8ef7e4b0c8380cd7f4c9","contributors":{"authors":[{"text":"Cloern, James E. 0000-0002-5880-6862 jecloern@usgs.gov","orcid":"https://orcid.org/0000-0002-5880-6862","contributorId":1488,"corporation":false,"usgs":true,"family":"Cloern","given":"James","email":"jecloern@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - 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2011 - Proactive conservation management of an island-endemic bird species in the face of global change","interactions":[],"lastModifiedDate":"2021-02-24T18:08:59.854889","indexId":"70035493","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":997,"text":"BioScience","active":true,"publicationSubtype":{"id":10}},"title":"Proactive conservation management of an island-endemic bird species in the face of global change","docAbstract":"Biodiversity conservation in an era of global change and scarce funding benefits from approaches that simultaneously solve multiple problems. Here, we discuss conservation management of the island scrub-jay (Aphelocoma insularis), the only island-endemic passerine species in the continental United States, which is currently restricted to 250-square-kilometer Santa Cruz Island, California. Although the species is not listed as threatened by state or federal agencies, its viability is nonetheless threatened on multiple fronts. We discuss management actions that could reduce extinction risk, including vaccination, captive propagation, biosecurity measures, and establishing a second free-living population on a neighboring island. Establishing a second population on Santa Rosa Island may have the added benefit of accelerating the restoration and enhancing the resilience of that island's currently highly degraded ecosystem. The proactive management framework for island scrub-jays presented here illustrates how strategies for species protection, ecosystem restoration, and adaptation to and mitigation of climate change can converge into an integrated solution.
","language":"English","publisher":"Oxford Academic","doi":"10.1525/bio.2011.61.12.11","issn":"00063568","usgsCitation":"Morrison, S., Sillett, T., Ghalambor, C.K., Fitzpatrick, J., Graber, D., Bakker, V., Bowman, R., Collins, C., Collins, P., Delaney, K., Doak, D., Koenig, W.D., Laughrin, L., Lieberman, A., Marzluff, J., Reynolds, M., Scott, J.M., Stallcup, J., Vickers, W., and Boyce, W., 2011, Proactive conservation management of an island-endemic bird species in the face of global change: BioScience, v. 61, no. 12, p. 1013-1021, https://doi.org/10.1525/bio.2011.61.12.11.","productDescription":"9 p.","startPage":"1013","endPage":"1021","costCenters":[],"links":[{"id":475117,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1525/bio.2011.61.12.11","text":"Publisher Index Page"},{"id":242979,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215196,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1525/bio.2011.61.12.11"}],"country":"United States","state":"California","otherGeospatial":"The California Channel Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.41015624999999,\n 32.63937487360669\n ],\n [\n -117.2900390625,\n 32.63937487360669\n ],\n [\n -117.2900390625,\n 34.252676117101515\n ],\n [\n -120.41015624999999,\n 34.252676117101515\n ],\n [\n -120.41015624999999,\n 32.63937487360669\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"61","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8c78e4b0c8380cd7e6e8","contributors":{"authors":[{"text":"Morrison, S.A.","contributorId":7930,"corporation":false,"usgs":true,"family":"Morrison","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":450894,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sillett, T. 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M.","contributorId":55766,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":450905,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Stallcup, J.A.","contributorId":18192,"corporation":false,"usgs":true,"family":"Stallcup","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":450898,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Vickers, W.","contributorId":89369,"corporation":false,"usgs":true,"family":"Vickers","given":"W.","affiliations":[],"preferred":false,"id":450912,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Boyce, W.M.","contributorId":12266,"corporation":false,"usgs":true,"family":"Boyce","given":"W.M.","email":"","affiliations":[],"preferred":false,"id":450896,"contributorType":{"id":1,"text":"Authors"},"rank":20}]}} ,{"id":70035752,"text":"70035752 - 2011 - Field observations onsSelectivet tidal-stream transport for postlarval and juvenile pink shrimp in florida bay","interactions":[],"lastModifiedDate":"2021-02-10T21:11:49.976243","indexId":"70035752","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2235,"text":"Journal of Crustacean Biology","active":true,"publicationSubtype":{"id":10}},"title":"Field observations onsSelectivet tidal-stream transport for postlarval and juvenile pink shrimp in florida bay","docAbstract":"Postlarvae and juveniles of pink shrimp were collected in the summers of 2005 and 2006 at three stations in northwestern Florida Bay, the main nursery ground of this species in South Florida. Collections were made at one- or two-hour intervals during three full moon nights and two new moon nights at depth intervals in the water column. Results of the five collections were consistent with the assumption that postlarvae use a flood-tide transport (FTT) to advance into the estuary by ascending in the water column during the dark-flood tide and resting near the bottom during the ebb tide. Evidence of a FTT were higher numbers of postlarvae per hour collected during the flood tide vs. ebb tide and the large number of postlarvae collected with highest velocity flood tide currents. ANOVA indicated significant differences in the number of postlarvae collected between tidal stages and moon phases, but not among depths. Postlarvae were more abundant during new moon than full moon. We also found different patterns of postlarval distribution between the new and full moon. During the new moon, a large peak of postlarvae occurred coincident with highest current speeds, whereas, with one exception, during the full moon postlarvae were more abundant in the second half of the flood period near the slack tide. In contrast, juveniles exhibited a behavior and migratory pattern opposite to that of postlarvae. ANOVA indicated significant differences between the number of juveniles captured between tidal stages and among depths, but not between moon phases. Juveniles were found almost exclusively near the surface on the ebb tide. Significantly larger juveniles were captured on the dark-ebb rather than on the dark-flood tide during both moon phases, suggesting that older juveniles were leaving the Bay on the ebb tide.
","language":"English","publisher":"Oxford Academic","doi":"10.1651/10-3291.1","issn":"02780372","usgsCitation":"Criales, M.M., Robblee, M.B., Browder, J.A., Cardenas, H., and Jackson, T.L., 2011, Field observations onsSelectivet tidal-stream transport for postlarval and juvenile pink shrimp in florida bay: Journal of Crustacean Biology, v. 31, no. 1, p. 26-33, https://doi.org/10.1651/10-3291.1.","productDescription":"8 p.","startPage":"26","endPage":"33","costCenters":[],"links":[{"id":475162,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1651/10-3291.1","text":"Publisher Index Page"},{"id":243918,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216076,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1651/10-3291.1"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.068115234375,\n 24.98107885823501\n ],\n [\n -80.57373046875,\n 24.98107885823501\n ],\n [\n -80.57373046875,\n 25.120419105501256\n ],\n [\n -81.068115234375,\n 25.120419105501256\n ],\n [\n -81.068115234375,\n 24.98107885823501\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"31","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0fcce4b0c8380cd53a10","contributors":{"authors":[{"text":"Criales, Maria M.","contributorId":69330,"corporation":false,"usgs":false,"family":"Criales","given":"Maria","email":"","middleInitial":"M.","affiliations":[{"id":12565,"text":"Rosenstiel School of Atomospheric Science, University of Miami","active":true,"usgs":false}],"preferred":false,"id":452193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robblee, Michael B. mike_robblee@usgs.gov","contributorId":3865,"corporation":false,"usgs":true,"family":"Robblee","given":"Michael","email":"mike_robblee@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":452192,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Browder, Joan A.","contributorId":7439,"corporation":false,"usgs":true,"family":"Browder","given":"Joan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":452190,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cardenas, H.","contributorId":11411,"corporation":false,"usgs":true,"family":"Cardenas","given":"H.","email":"","affiliations":[],"preferred":false,"id":452191,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jackson, Thomas L.","contributorId":93667,"corporation":false,"usgs":true,"family":"Jackson","given":"Thomas","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":452194,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035494,"text":"70035494 - 2011 - Isotopic evolution of the idaho batholith and Challis intrusive province, Northern US Cordillera","interactions":[],"lastModifiedDate":"2021-02-24T18:00:16.189486","indexId":"70035494","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic evolution of the idaho batholith and Challis intrusive province, Northern US Cordillera","docAbstract":"The Idaho batholith and spatially overlapping Challis intrusive province in the North American Cordillera have a history of magmatism spanning some 55 Myr. New isotopic data from the ∼98 Ma to 54 Ma Idaho batholith and ∼51 Ma to 43 Ma Challis intrusions, coupled with recent geochronological work, provide insights into the evolution of magmatism in the Idaho segment of the Cordillera. Nd and Hf isotopes show clear shifts towards more evolved compositions through the batholith's history and Pb isotopes define distinct fields correlative with the different age and compositionally defined suites of the batholith, whereas the Sr isotopic compositions of the various suites largely overlap. The subsequent Challis magmatism shows the full range of isotopic compositions seen in the batholith. These data suggest that the early suites of metaluminous magmatism (98–87 Ma) represent crust–mantle hybrids. Subsequent voluminous Atlanta peraluminous suite magmatism (83–67 Ma) results primarily from melting of different crustal components. This can be attributed to crustal thickening, resulting from either subduction processes or an outboard terrane collision. A later, smaller crustal melting episode, in the northern Idaho batholith, resulted in the Bitterroot peraluminous suite (66–54 Ma) and tapped different crustal sources. Subsequent Challis magmatism was derived from both crust and mantle sources and corresponds to extensional collapse of the over-thickened crust.
","language":"English","publisher":"Oxford Academic","doi":"10.1093/petrology/egr050","issn":"00223530","usgsCitation":"Gaschnig, R.M., Vervoort, J., Lewis, R.S., and Tikoff, B., 2011, Isotopic evolution of the idaho batholith and Challis intrusive province, Northern US Cordillera: Journal of Petrology, v. 52, no. 12, p. 2397-2429, https://doi.org/10.1093/petrology/egr050.","productDescription":"33 p.","startPage":"2397","endPage":"2429","costCenters":[],"links":[{"id":242980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215197,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1093/petrology/egr050"}],"country":"United States","otherGeospatial":"Idaho batholith","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.091796875,\n 34.379712580462204\n ],\n [\n -114.2578125,\n 37.23032838760387\n ],\n [\n -113.818359375,\n 41.376808565702355\n ],\n [\n -113.203125,\n 46.07323062540835\n ],\n [\n -113.37890625,\n 49.210420445650286\n ],\n [\n -122.87109375,\n 49.38237278700955\n ],\n [\n -125.33203125,\n 48.3416461723746\n ],\n [\n -126.12304687500001,\n 43.13306116240612\n ],\n [\n -121.025390625,\n 33.43144133557529\n ],\n [\n -119.091796875,\n 34.379712580462204\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"52","issue":"12","noUsgsAuthors":false,"publicationDate":"2011-11-25","publicationStatus":"PW","scienceBaseUri":"505a3fb5e4b0c8380cd6474e","contributors":{"authors":[{"text":"Gaschnig, Richard M.","contributorId":31220,"corporation":false,"usgs":true,"family":"Gaschnig","given":"Richard","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":450915,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vervoort, J.D.","contributorId":98126,"corporation":false,"usgs":true,"family":"Vervoort","given":"J.D.","affiliations":[],"preferred":false,"id":450917,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lewis, R. S.","contributorId":19951,"corporation":false,"usgs":true,"family":"Lewis","given":"R.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":450914,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tikoff, B.","contributorId":90934,"corporation":false,"usgs":true,"family":"Tikoff","given":"B.","affiliations":[],"preferred":false,"id":450916,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70034316,"text":"70034316 - 2011 - 40Ar* loss in experimentally deformed muscovite and biotite with implications for 40Ar/39Ar geochronology of naturally deformed rocks","interactions":[],"lastModifiedDate":"2021-04-22T16:56:26.522573","indexId":"70034316","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"40Ar* loss in experimentally deformed muscovite and biotite with implications for 40Ar/39Ar geochronology of naturally deformed rocks","docAbstract":"The effects of deformation on radiogenic argon (40Ar∗) retentivity in mica are described from high pressure experiments performed on rock samples of peraluminous granite containing euhedral muscovite and biotite. Cylindrical cores, ∼15 mm in length and 6.25 mm in diameter, were drilled from granite collected from the South Armorican Massif in northwestern France, loaded into gold capsules, and weld-sealed in the presence of excess water. The samples were deformed at a pressure of 10 kb and a temperature of 600 °C over a period 29 of hours within a solid medium assembly in a Griggs-type triaxial hydraulic deformation apparatus. Overall shortening in the experiments was approximately 10%. Transmitted light and secondary and backscattered electron imaging of the deformed granite samples reveals evidence of induced defects and for significant physical grain size reduction by kinking, cracking, and grain segmentation of the micas.
Infrared (IR) laser (CO2) heating of individual 1.5–2.5 mm diameter grains of muscovite and biotite separated from the undeformed granite yield well-defined 40Ar/39Ar plateau ages of 311 ± 2 Ma (2σ). Identical experiments on single grains separated from the experimentally deformed granite yield results indicating 40Ar∗ loss of 0–35% in muscovite and 2–3% 40Ar∗ loss in biotite. Intragrain in situ ultraviolet (UV) laser ablation 40Ar/39Ar ages (±4–10%, 1σ) of deformed muscovites range from 309 ± 13 to 264 ± 7 Ma, consistent with 0–16% 40Ar∗ loss relative to the undeformed muscovite. The in situ UV laser ablation 40Ar/39Ar ages of deformed biotite vary from 301 to 217 Ma, consistent with up to 32% 40Ar∗ loss. No spatial correlation is observed between in situ 40Ar/39Ar age and position within individual grains. Using available argon diffusion data for muscovite the observed 40Ar∗ loss in the experimentally treated muscovite can be utilized to predict average 40Ar∗ diffusion dimensions. Maximum 40Ar/39Ar ages obtained by UV laser ablation overlap those of the undeformed muscovite, indicating argon loss of <1% and an average effective grain radius for 40Ar∗ diffusion ⩾700 μm. The UV laser ablation and IR laser incremental 40Ar/39Ar ages indicating 40Ar∗ loss of 16% and 35%, respectively, are consistent with an average diffusion radius ≪100 μm. These results support a hypothesis of grain-scale 40Ar∗ diffusion distances in undeformed mica and a heterogeneous mechanical reduction in the intragrain effective diffusion length scale for 40Ar∗ in deformed mica. Reduction in the effective diffusion length scale in naturally deformed samples occurs most probably through production of mesoscopic and submicroscopic defects such as, e.g., stacking faults. A network of interconnected defects, continuously forming and annealing during dynamic deformation likely plays an important role in controlling both 40Ar∗ retention and intragrain distribution in deformed mica. Intragrain 40Ar/39Ar ages, when combined with estimates of diffusion kinetics and distances, may provide a means of establishing thermochronological histories from individual micas.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2011.10.012","issn":"00167037","usgsCitation":"Cosca, M., Stunitz, H., Bourgeix, A., and Lee, J., 2011, 40Ar* loss in experimentally deformed muscovite and biotite with implications for 40Ar/39Ar geochronology of naturally deformed rocks: Geochimica et Cosmochimica Acta, v. 75, no. 24, p. 7759-7778, https://doi.org/10.1016/j.gca.2011.10.012.","productDescription":"20 p.","startPage":"7759","endPage":"7778","costCenters":[],"links":[{"id":244557,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216672,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2011.10.012"}],"volume":"75","issue":"24","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e25ee4b0c8380cd45b0d","contributors":{"authors":[{"text":"Cosca, M. 0000-0002-0600-7663","orcid":"https://orcid.org/0000-0002-0600-7663","contributorId":107417,"corporation":false,"usgs":true,"family":"Cosca","given":"M.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":445213,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stunitz, H.","contributorId":44385,"corporation":false,"usgs":true,"family":"Stunitz","given":"H.","affiliations":[],"preferred":false,"id":445212,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bourgeix, A.-L.","contributorId":10250,"corporation":false,"usgs":true,"family":"Bourgeix","given":"A.-L.","email":"","affiliations":[],"preferred":false,"id":445210,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lee, J.P.","contributorId":21373,"corporation":false,"usgs":true,"family":"Lee","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":445211,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70034487,"text":"70034487 - 2011 - Mars Global Digital Dune Database (MGD3): North polar region (MC-1) distribution, applications, and volume estimates","interactions":[],"lastModifiedDate":"2021-04-19T19:46:43.827574","indexId":"70034487","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1425,"text":"Earth Surface Processes and Landforms","active":true,"publicationSubtype":{"id":10}},"title":"Mars Global Digital Dune Database (MGD3): North polar region (MC-1) distribution, applications, and volume estimates","docAbstract":"The Mars Global Digital Dune Database (MGD3) now extends from 90°N to 65°S. The recently released north polar portion (MC‐1) of MGD3 adds ~844 000 km2 of moderate‐ to large‐size dark dunes to the previously released equatorial portion (MC‐2 to MC‐29) of the database. The database, available in GIS‐ and tabular‐format in USGS Open‐File Reports, makes it possible to examine global dune distribution patterns and to compare dunes with other global data sets (e.g. atmospheric models). MGD3 can also be used by researchers to identify areas suitable for more focused studies. The utility of MGD3 is demonstrated through three example applications. First, the uneven geographic distribution of the dunes is discussed and described. Second, dune‐derived wind direction and its role as ground truth for atmospheric models is reviewed. Comparisons between dune‐derived winds and global and mesoscale atmospheric models suggest that local topography may have an important influence on dune‐forming winds. Third, the methods used here to estimate north polar dune volume are presented and these methods and estimates (1130 km3 to 3250 km3) are compared with those of previous researchers (1158 km3 to 15 000 km3). In the near future, MGD3 will be extended to include the south polar region.
In 2006, the United States Geological Survey (USGS) completed a detailed analysis and interpretation of available 2-D and 3-D seismic data, along with seismic modeling and correlation with specially processed downhole well log data for identifying potential gas hydrate accumulations on the North Slope of Alaska. A methodology was developed for identifying sub-permafrost gas hydrate prospects within the gas hydrate stability zone in the Milne Point area. The study revealed a total of 14 gas hydrate prospects in this area.
In order to validate the gas hydrate prospecting protocol of the USGS and to acquire critical reservoir data needed to develop a longer-term production testing program, a stratigraphic test well was drilled at the Mount Elbert prospect in the Milne Point area in early 2007. The drilling confirmed the presence of two prominent gas-hydrate-bearing units in the Mount Elbert prospect, and high quality well logs and core data were acquired. The post-drill results indicate pre-drill predictions of the reservoir thickness and the gas-hydrate saturations based on seismic and existing well data were 90% accurate for the upper unit (hydrate unit D) and 70% accurate for the lower unit (hydrate unit C), confirming the validity of the USGS approach to gas hydrate prospecting. The Mount Elbert prospect is the first gas hydrate accumulation on the North Slope of Alaska identified primarily on the basis of seismic attribute analysis and specially processed downhole log data. Post-drill well log data enabled a better constraint of the elastic model and the development of an improved approach to the gas hydrate prospecting using seismic attributes.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.marpetgeo.2009.08.007","issn":"02648172","usgsCitation":"Lee, M.W., Agena, W.F., Collett, T.S., and Inks, T., 2011, Pre- and post-drill comparison of the Mount Elbert gas hydrate prospect, Alaska North Slope: Marine and Petroleum Geology, v. 28, no. 2, p. 578-588, https://doi.org/10.1016/j.marpetgeo.2009.08.007.","productDescription":"11 p.","startPage":"578","endPage":"588","costCenters":[],"links":[{"id":243891,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216050,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2009.08.007"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -166.9921875,\n 67.33986082559095\n ],\n [\n -140.9765625,\n 67.33986082559095\n ],\n [\n -140.9765625,\n 71.38514208411495\n ],\n [\n -166.9921875,\n 71.38514208411495\n ],\n [\n -166.9921875,\n 67.33986082559095\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a80bbe4b0c8380cd7b17e","contributors":{"authors":[{"text":"Lee, Myung W.","contributorId":84358,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","middleInitial":"W.","affiliations":[],"preferred":false,"id":452188,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Agena, Warren F. wagena@usgs.gov","contributorId":3181,"corporation":false,"usgs":true,"family":"Agena","given":"Warren","email":"wagena@usgs.gov","middleInitial":"F.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":452186,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Collett, Timothy S. 0000-0002-7598-4708 tcollett@usgs.gov","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":1698,"corporation":false,"usgs":true,"family":"Collett","given":"Timothy","email":"tcollett@usgs.gov","middleInitial":"S.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":452189,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Inks, T.L.","contributorId":79311,"corporation":false,"usgs":true,"family":"Inks","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":452187,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70034587,"text":"70034587 - 2011 - Modeling regional coral reef responses to global warming and changes in ocean chemistry: Caribbean case study","interactions":[],"lastModifiedDate":"2021-04-16T16:58:15.134754","indexId":"70034587","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1252,"text":"Climatic Change","active":true,"publicationSubtype":{"id":10}},"title":"Modeling regional coral reef responses to global warming and changes in ocean chemistry: Caribbean case study","docAbstract":"Climatic change threatens the future of coral reefs in the Caribbean and the important ecosystem services they provide. We used a simulation model [COMBO (“COral Mortality and Bleaching Output”)] to estimate future coral cover in the part of the eastern Caribbean impacted by a massive coral bleaching event in 2005. COMBO calculates impacts of future climate change on coral reefs by combining impacts from long-term changes in average sea surface temperature (SST) and ocean acidification with impacts from episodic high temperature mortality (bleaching) events. We used mortality and heat dose data from the 2005 bleaching event to select historic temperature datasets, to use as a baseline for running COMBO under different future climate scenarios and sets of assumptions. Results suggest a bleak future for coral reefs in the eastern Caribbean. For three different emissions scenarios from the Intergovernmental Panel on Climate Change (IPCC; B1, A1B, and A1FI), coral cover on most Caribbean reefs is projected to drop below 5% by the year 2035, if future mortality rates are equivalent to some of those observed in the 2005 event (50%). For a scenario where corals gain an additional 1–1.5°C of heat tolerance through a shift in the algae that live in the coral tissue, coral cover above 5% is prolonged until 2065. Additional impacts such as storms or anthropogenic damage could result in declines in coral cover even faster than those projected here. These results suggest the need to identify and preserve the locations that are likely to have a higher resiliency to bleaching to save as many remnant populations of corals as possible in the face of projected wide-spread coral loss.
","language":"English","publisher":"Springer Link","doi":"10.1007/s10584-011-0022-z","issn":"01650009","usgsCitation":"Buddemeier, R., Lane, D., and Martinich, J., 2011, Modeling regional coral reef responses to global warming and changes in ocean chemistry: Caribbean case study: Climatic Change, v. 109, no. 3-4, p. 375-397, https://doi.org/10.1007/s10584-011-0022-z.","productDescription":"23 p.","startPage":"375","endPage":"397","costCenters":[],"links":[{"id":475447,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10584-011-0022-z","text":"Publisher Index Page"},{"id":243815,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215976,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10584-011-0022-z"}],"volume":"109","issue":"3-4","noUsgsAuthors":false,"publicationDate":"2011-02-11","publicationStatus":"PW","scienceBaseUri":"505a5c21e4b0c8380cd6fa65","contributors":{"authors":[{"text":"Buddemeier, R. W.","contributorId":86492,"corporation":false,"usgs":true,"family":"Buddemeier","given":"R. W.","affiliations":[],"preferred":false,"id":446523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lane, D.R.","contributorId":76559,"corporation":false,"usgs":true,"family":"Lane","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":446522,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martinich, J.A.","contributorId":103099,"corporation":false,"usgs":true,"family":"Martinich","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":446524,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70034820,"text":"70034820 - 2011 - Faulted terrace risers place new constraints on the late Quaternary slip rate for the central Altyn Tagh fault, northwest Tibet","interactions":[],"lastModifiedDate":"2021-03-16T11:55:13.180396","indexId":"70034820","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Faulted terrace risers place new constraints on the late Quaternary slip rate for the central Altyn Tagh fault, northwest Tibet","docAbstract":"The active, left-lateral Altyn Tagh fault defines the northwestern margin of the Tibetan Plateau in western China. To clarify late Quaternary temporal and spatial variations in slip rate along the central portion of this fault system (85°–90°E), we have more than doubled the number of dated offset markers along the central Altyn Tagh fault. In particular, we determined offset-age relations for seven left-laterally faulted terrace risers at three sites (Kelutelage, Yukuang, and Keke Qiapu) spanning a 140-km-long fault reach by integrating surficial geologic mapping, topographic surveys (total station and tripod–light detection and ranging [T-LiDAR]), and geochronology (radiocarbon dating of organic samples, 230Th/U dating of pedogenic carbonate coatings on buried clasts, and terrestrial cosmogenic radionuclide exposure age dating applied to quartz-rich gravels). At Kelutelage, which is the westernmost site (37.72°N, 86.67°E), two faulted terrace risers are offset 58 ± 3 m and 48 ± 4 m, and formed at 6.2–6.1 ka and 5.9–3.7 ka, respectively. At the Yukuang site (38.00°N, 87.87°E), four faulted terrace risers are offset 92 ± 12 m, 68 ± 6 m, 55 ± 13 m, and 59 ± 9 m and formed at 24.2–9.5 ka, 6.4–5.0 ka, 5.1–3.9 ka, and 24.2–6.4 ka, respectively. At the easternmost site, Keke Qiapu (38.08°N, 88.12°E), a faulted terrace riser is offset 33 ± 6 m and has an age of 17.1–2.2 ka. The displacement-age relationships derived from these markers can be satisfied by an approximately uniform slip rate of 8–12 mm/yr. However, additional analysis is required to test how much temporal variability in slip rate is permitted by this data set.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/B30207.1","issn":"00167606","usgsCitation":"Gold, R., Cowgill, E., Arrowsmith, J., Chen, X., Sharp, W., Cooper, K., and Wang, X., 2011, Faulted terrace risers place new constraints on the late Quaternary slip rate for the central Altyn Tagh fault, northwest Tibet: Geological Society of America Bulletin, v. 123, no. 5, p. 958-978, https://doi.org/10.1130/B30207.1.","productDescription":"21 p.","startPage":"958","endPage":"978","costCenters":[],"links":[{"id":243424,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Tibet","otherGeospatial":"Central Altyn Tagh fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 86.66015624999999,\n 28.22697003891834\n ],\n [\n 95.712890625,\n 29.075375179558346\n ],\n [\n 98.4375,\n 28.459033019728043\n ],\n [\n 98.61328125,\n 32.39851580247402\n ],\n [\n 91.0546875,\n 33.578014746143985\n ],\n [\n 89.033203125,\n 36.66841891894786\n ],\n [\n 80.419921875,\n 35.60371874069731\n ],\n [\n 77.783203125,\n 33.578014746143985\n ],\n [\n 78.837890625,\n 30.977609093348686\n ],\n [\n 86.66015624999999,\n 28.22697003891834\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"123","issue":"5","noUsgsAuthors":false,"publicationDate":"2011-01-28","publicationStatus":"PW","scienceBaseUri":"505a0f22e4b0c8380cd537b2","contributors":{"authors":[{"text":"Gold, R.D.","contributorId":79691,"corporation":false,"usgs":true,"family":"Gold","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":447791,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cowgill, E.","contributorId":90124,"corporation":false,"usgs":true,"family":"Cowgill","given":"E.","email":"","affiliations":[],"preferred":false,"id":447794,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arrowsmith, J.R.","contributorId":88536,"corporation":false,"usgs":true,"family":"Arrowsmith","given":"J.R.","affiliations":[],"preferred":false,"id":447793,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chen, X.","contributorId":76527,"corporation":false,"usgs":true,"family":"Chen","given":"X.","affiliations":[],"preferred":false,"id":447790,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sharp, W.D.","contributorId":88467,"corporation":false,"usgs":true,"family":"Sharp","given":"W.D.","email":"","affiliations":[],"preferred":false,"id":447792,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cooper, K.M.","contributorId":91886,"corporation":false,"usgs":true,"family":"Cooper","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":447795,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wang, X.-F.","contributorId":104728,"corporation":false,"usgs":true,"family":"Wang","given":"X.-F.","email":"","affiliations":[],"preferred":false,"id":447796,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70035748,"text":"70035748 - 2011 - Modeling misidentification errors that result from use of genetic tags in capture-recapture studies","interactions":[],"lastModifiedDate":"2021-02-16T17:26:32.063455","indexId":"70035748","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1573,"text":"Environmental and Ecological Statistics","active":true,"publicationSubtype":{"id":10}},"title":"Modeling misidentification errors that result from use of genetic tags in capture-recapture studies","docAbstract":"Misidentification of animals is potentially important when naturally existing features (natural tags) such as DNA fingerprints (genetic tags) are used to identify individual animals. For example, when misidentification leads to multiple identities being assigned to an animal, traditional estimators tend to overestimate population size. Accounting for misidentification in capture–recapture models requires detailed understanding of the mechanism. Using genetic tags as an example, we outline a framework for modeling the effect of misidentification in closed population studies when individual identification is based on natural tags that are consistent over time (non-evolving natural tags). We first assume a single sample is obtained per animal for each capture event, and then generalize to the case where multiple samples (such as hair or scat samples) are collected per animal per capture occasion. We introduce methods for estimating population size and, using a simulation study, we show that our new estimators perform well for cases with moderately high capture probabilities or high misidentification rates. In contrast, conventional estimators can seriously overestimate population size when errors due to misidentification are ignored.
We determined home-range overlap among northern flying squirrels (Glaucomys sabrinus) to assess their spatial organization. We found extensive home-range overlap among females, and though this overlap could reflect social behavior, we found no evidence of attraction among females, with only one instance of den sharing. Instead, our results suggest that females share foraging areas but may be territorial in portions of the home range, especially around den trees and during young-rearing. Home-range overlap could also result from, the extrinsic effect of forest fragmentation due to timber harvest, which might impede dispersal and force squirrels to cluster on remaining fragments of suitable habitat.
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