{"pageNumber":"2321","pageRowStart":"58000","pageSize":"25","recordCount":184634,"records":[{"id":70030922,"text":"70030922 - 2007 - Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70030922","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials","docAbstract":"Unconformable surfaces separating Precambrian crystalline basement and overlying Proterozoic to Cambrian sedimentary rocks provide an exceptional opportunity to examine the role of primitive soil ecosystems in weathering and resultant formation of saprolite (weathered rock retaining rock structure) and regolith (weathered rock without rock structure), but many appear to have been affected by burial diagenesis and hydrothermal fluid flow, leading some researchers to discount their suitability for such studies. We examine one modern weathering profile (Cecil series), four Cambrian paleoweathering profiles from the North American craton (Squaw Creek, Franklin Mountains, Core SQ-8, and Core 4), one Neoproterozoic profile (Sheigra), and one late Paleoproterozoic profile (Baraboo), to test the hypothesis that these paleoweathering profiles do provide evidence of primitive terrestrial weathering despite their diagenetic and hydrothermal overprinting, especially additions of potassium. We employ an integrated approach using (1) detailed thin-section investigations to identify characteristic pedogenic features associated with saprolitization and formation of well-drained regoliths, (2) electron microprobe analysis to identify specific weathered and new mineral phases, and (3) geochemical mass balance techniques to characterize volume changes during weathering and elemental gains and losses of major and minor elements relative to the inferred parent materials. There is strong pedogenic evidence of paleoweathering, such as clay illuviation, sepic-plasmic fabrics, redoximorphic features, and dissolution and alteration of feldspars and mafic minerals to kaolinite, gibbsite, and Fe oxides, as well as geochemical evidence, such as whole-rock losses of Na, Ca, Mg, Si, Sr, Fe, and Mn greater than in modern profiles. Evidence of diagenesis includes net additions of K, Ba, and Rb determined through geochemical mass balance, K-feldspar overgrowths in overlying sandstone sections, and K-feldspars with reaction rims in weathered basement. The sub-Cambrian paleoweathering profiles formed on granite are remarkably similar to modern weathering profiles formed on granite, in spite of overprinting by potassium diagenesis. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/518048","issn":"00221376","usgsCitation":"Driese, S., Medaris, L., Ren, M., Runkel, A.C., and Langford, R., 2007, Differentiating pedogenesis from diagenesis in early terrestrial paleoweathering surfaces formed on granitic composition parent materials: Journal of Geology, v. 115, no. 4, p. 387-406, https://doi.org/10.1086/518048.","startPage":"387","endPage":"406","numberOfPages":"20","costCenters":[],"links":[{"id":211269,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/518048"},{"id":238532,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0105e4b0c8380cd4fa56","contributors":{"authors":[{"text":"Driese, S.G.","contributorId":53594,"corporation":false,"usgs":true,"family":"Driese","given":"S.G.","email":"","affiliations":[],"preferred":false,"id":429243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Medaris, L.G. Jr.","contributorId":12258,"corporation":false,"usgs":true,"family":"Medaris","given":"L.G.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":429242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ren, M.","contributorId":62823,"corporation":false,"usgs":true,"family":"Ren","given":"M.","email":"","affiliations":[],"preferred":false,"id":429244,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Runkel, Anthony C.","contributorId":63186,"corporation":false,"usgs":true,"family":"Runkel","given":"Anthony","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":429245,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Langford, R.P.","contributorId":70589,"corporation":false,"usgs":true,"family":"Langford","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":429246,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031327,"text":"70031327 - 2007 - Sources and transport of algae and nutrients in a Californian river in a semi-arid climate","interactions":[],"lastModifiedDate":"2023-07-07T11:21:19.941508","indexId":"70031327","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Sources and transport of algae and nutrients in a Californian river in a semi-arid climate","docAbstract":"<p>1. To elucidate factors contributing to dissolved oxygen (DO) depletion in the Stockton Deep Water Ship Channel in the lower San Joaquin River, spatial and temporal changes in algae and nutrient concentrations were investigated in relation to flow regime under the semiarid climate conditions. 2. Chlorophyll-a (chl-a) concentration and loads indicated that most algal biomass was generated by in-stream growth in the main stem of the river. The addition of algae from tributaries and drains was small (c.15% of total chl-a load), even though high concentrations of chl-a were measured in some source waters. 3. Nitrate and soluble-reactive phosphorus (SRP) were available in excess as a nutrient source for algae. Although nitrate and SRP from upstream tributaries contributed (16.9% of total nitrate load and 10.8% of total SRP load), nutrients derived from agriculture and other sources in the middle and lower river reaches were mostly responsible (20.2% for nitrate and 48.0% for SRP) for maintaining high nitrate and SRP concentrations in the main stem. 4. A reduction in nutrient discharge would attenuate the algal blooms that accelerate DO depletion in the Stockton Deep Water Ship Channel. The N : P ratio, in the main stem suggests that SRP reduction would be a more viable option for algae reduction than nitrogen reduction. 5. Very high algal growth rates in the main stem suggest that reducing the algal seed source in upstream areas would also be an effective strategy.</p>","largerWorkTitle":"Freshwater Biology","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2427.2007.01849.x","issn":"00465070","usgsCitation":"Ohte, N., Dahlgren, R., Silva, S.R., Kendall, C., Kratzer, C.R., and Doctor, D.H., 2007, Sources and transport of algae and nutrients in a Californian river in a semi-arid climate: Freshwater Biology, v. 52, no. 12, p. 2476-2493, https://doi.org/10.1111/j.1365-2427.2007.01849.x.","productDescription":"18 p.","startPage":"2476","endPage":"2493","numberOfPages":"18","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":212169,"rank":2,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2007.01849.x"},{"id":239616,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Joaquin River","volume":"52","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-08-08","publicationStatus":"PW","scienceBaseUri":"505b935fe4b08c986b31a470","contributors":{"authors":[{"text":"Ohte, Nobuhito","contributorId":73363,"corporation":false,"usgs":false,"family":"Ohte","given":"Nobuhito","email":"","affiliations":[],"preferred":false,"id":431063,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dahlgren, Randy A.","contributorId":48630,"corporation":false,"usgs":true,"family":"Dahlgren","given":"Randy A.","affiliations":[],"preferred":false,"id":431066,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Silva, Steven R. srsilva@usgs.gov","contributorId":3162,"corporation":false,"usgs":true,"family":"Silva","given":"Steven","email":"srsilva@usgs.gov","middleInitial":"R.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":431065,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":431067,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kratzer, Charles R.","contributorId":30619,"corporation":false,"usgs":true,"family":"Kratzer","given":"Charles","email":"","middleInitial":"R.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":431064,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Doctor, Daniel H. 0000-0002-8338-9722 dhdoctor@usgs.gov","orcid":"https://orcid.org/0000-0002-8338-9722","contributorId":2037,"corporation":false,"usgs":true,"family":"Doctor","given":"Daniel","email":"dhdoctor@usgs.gov","middleInitial":"H.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":431068,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030816,"text":"70030816 - 2007 - Comparative velocity structure of active Hawaiian volcanoes from 3-D onshore-offshore seismic tomography","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030816","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Comparative velocity structure of active Hawaiian volcanoes from 3-D onshore-offshore seismic tomography","docAbstract":"We present a 3-D P-wave velocity model of the combined subaerial and submarine portions of the southeastern part of the Island of Hawaii, based on first-arrival seismic tomography of marine airgun shots recorded by the onland seismic network. Our model shows that high-velocity materials (6.5-7.0??km/s) lie beneath Kilauea's summit, Koae fault zone, and the upper Southwest Rift Zone (SWRZ) and upper and middle East Rift Zone (ERZ), indicative of magma cumulates within the volcanic edifice. A separate high-velocity body of 6.5-6.9??km/s within Kilauea's lower ERZ and upper Puna Ridge suggests a distinct body of magma cumulates, possibly connected to the summit magma cumulates at depth. The two cumulate bodies within Kilauea's ERZ may have undergone separate ductile flow seaward, influencing the submarine morphology of Kilauea's south flank. Low velocities (5.0-6.3??km/s) seaward of Kilauea's Hilina fault zone, and along Mauna Loa's seaward facing Kao'iki fault zone, are attributed to thick piles of volcaniclastic sediments deposited on the submarine flanks. Loihi seamount shows high-velocity anomalies beneath the summit and along the rift zones, similar to the interpreted magma cumulates below Mauna Loa and Kilauea volcanoes, and a low-velocity anomaly beneath the oceanic crust, probably indicative of melt within the upper mantle. Around Kilauea's submarine flank, a high-velocity anomaly beneath the outer bench suggests the presence of an ancient seamount that may obstruct outward spreading of the flank. Mauna Loa's southeast flank is also marked by a large, anomalously high-velocity feature (7.0-7.4??km/s), interpreted to define an inactive, buried volcanic rift zone, which might provide a new explanation for the westward migration of Mauna Loa's current SWRZ and the growth of Kilauea's SWRZ. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.epsl.2007.05.008","issn":"0012821X","usgsCitation":"Park, J., Morgan, J., Zelt, C., Okubo, P.G., Peters, L., and Benesh, N., 2007, Comparative velocity structure of active Hawaiian volcanoes from 3-D onshore-offshore seismic tomography: Earth and Planetary Science Letters, v. 259, no. 3-4, p. 500-516, https://doi.org/10.1016/j.epsl.2007.05.008.","startPage":"500","endPage":"516","numberOfPages":"17","costCenters":[],"links":[{"id":502584,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://figshare.com/articles/journal_contribution/Comparative_velocity_structure_of_active_Hawaiian_volcanoes_from_3-D_onshore_offshore_seismic_tomography/22929686","text":"External Repository"},{"id":211661,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.epsl.2007.05.008"},{"id":238993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"259","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f830e4b0c8380cd4cf20","contributors":{"authors":[{"text":"Park, J.","contributorId":47164,"corporation":false,"usgs":true,"family":"Park","given":"J.","affiliations":[],"preferred":false,"id":428809,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morgan, J.K.","contributorId":83333,"corporation":false,"usgs":true,"family":"Morgan","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":428813,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zelt, C.A.","contributorId":74911,"corporation":false,"usgs":true,"family":"Zelt","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":428812,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Okubo, P. G. 0000-0002-0381-6051","orcid":"https://orcid.org/0000-0002-0381-6051","contributorId":95899,"corporation":false,"usgs":true,"family":"Okubo","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":428814,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peters, L.","contributorId":49971,"corporation":false,"usgs":true,"family":"Peters","given":"L.","affiliations":[],"preferred":false,"id":428810,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Benesh, N.","contributorId":53597,"corporation":false,"usgs":true,"family":"Benesh","given":"N.","email":"","affiliations":[],"preferred":false,"id":428811,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030950,"text":"70030950 - 2007 - Non-volcanic tremor driven by large transient shear stresses","interactions":[],"lastModifiedDate":"2012-03-12T17:21:04","indexId":"70030950","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Non-volcanic tremor driven by large transient shear stresses","docAbstract":"Non-impulsive seismic radiation or 'tremor' has long been observed at volcanoes and more recently around subduction zones. Although the number of observations of non-volcanic tremor is steadily increasing, the causative mechanism remains unclear. Some have attributed non-volcanic tremor to the movement of fluids, while its coincidence with geodetically observed slow-slip events at regular intervals has led others to consider slip on the plate interface as its cause. Low-frequency earthquakes in Japan, which are believed to make up at least part of non-volcanic tremor, have focal mechanisms and locations that are consistent with tremor being generated by shear slip on the subduction interface. In Cascadia, however, tremor locations appear to be more distributed in depth than in Japan, making them harder to reconcile with a plate interface shear-slip model. Here we identify bursts of tremor that radiated from the Cascadia subduction zone near Vancouver Island, Canada, during the strongest shaking from the moment magnitude Mw = 7.8, 2002 Denali, Alaska, earthquake. Tremor occurs when the Love wave displacements are to the southwest (the direction of plate convergence of the overriding plate), implying that the Love waves trigger the tremor. We show that these displacements correspond to shear stresses of approximately 40 kPa on the plate interface, which suggests that the effective stress on the plate interface is very low. These observations indicate that tremor and possibly slow slip can be instantaneously induced by shear stress increases on the subduction interface - effectively a frictional failure response to the driving stress. ??2007 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/nature06017","issn":"00280836","usgsCitation":"Rubinstein, J., Vidale, J., Gomberg, J., Bodin, P., Creager, K.C., and Malone, S.D., 2007, Non-volcanic tremor driven by large transient shear stresses: Nature, v. 448, no. 7153, p. 579-582, https://doi.org/10.1038/nature06017.","startPage":"579","endPage":"582","numberOfPages":"4","costCenters":[],"links":[{"id":211639,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/nature06017"},{"id":238966,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"448","issue":"7153","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6767e4b0c8380cd732f9","contributors":{"authors":[{"text":"Rubinstein, J.L.","contributorId":68105,"corporation":false,"usgs":true,"family":"Rubinstein","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":429351,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vidale, J.E.","contributorId":55849,"corporation":false,"usgs":true,"family":"Vidale","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":429350,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gomberg, J.","contributorId":95994,"corporation":false,"usgs":true,"family":"Gomberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":429352,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bodin, P.","contributorId":29554,"corporation":false,"usgs":true,"family":"Bodin","given":"P.","email":"","affiliations":[],"preferred":false,"id":429348,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Creager, K. C.","contributorId":105078,"corporation":false,"usgs":true,"family":"Creager","given":"K.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":429353,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Malone, S. D.","contributorId":48310,"corporation":false,"usgs":true,"family":"Malone","given":"S.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":429349,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030815,"text":"70030815 - 2007 - Evidence of lake whitefish spawning in the Detroit River: Implications for habitat and population recovery","interactions":[],"lastModifiedDate":"2021-06-04T12:11:33.05086","indexId":"70030815","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Evidence of lake whitefish spawning in the Detroit River: Implications for habitat and population recovery","docAbstract":"<p>Historic reports imply that the lower Detroit River was once a prolific spawning area for lake whitefish (<i>Coregonus clupeaformis</i>) prior to the construction of the Livingstone shipping channel in 1911. Large numbers of lake whitefish migrated into the river in fall where they spawned on expansive limestone bedrock and gravel bars. Lake whitefish were harvested in the river during this time by commercial fisheries and for fish culture operations. The last reported landing of lake whitefish from the Detroit River was in 1925. Loss of suitable spawning habitat during the construction of the shipping channels as well as the effects of over-fishing, sea lamprey (<i>Petromyzon marinus</i>) predation, loss of riparian wetlands, and other perturbations to riverine habitat are associated with the disappearance of lake whitefish spawning runs. Because lake whitefish are recovering in Lake Erie with substantial spawning occurring in the western basin, we suspected they may once again be using the Detroit River to spawn. We sampled in the Detroit River for lake whitefish adults and eggs in late fall of 2005 and for lake whitefish eggs and fish larvae in 2006 to assess the extent of reproduction in the river. A spawning-ready male lake whitefish was collected in gillnets and several dozen viable lake whitefish eggs were collected with a pump in the Detroit River in November and December 2005. No lake whitefish eggs were found at lower river sites in March of 2006, but viable lake whitefish eggs were found at Belle Isle in the upper river in early April. Several hundred lake whitefish larvae were collected in the river during March through early May 2006. Peak larval densities (30 fish/1,000 m3 of water) were observed during the week of 3 April. Because high numbers of lake whitefish larvae were collected from mid- and downstream sample sites in the river, we believe that production of lake whitefish in the Detroit River may be a substantial contribution to the lake whitefish population in Lake Erie.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0380-1330(07)70064-3","usgsCitation":"Roseman, E., Kennedy, G., Boase, J., Manny, B., Todd, T.N., and Stott, W., 2007, Evidence of lake whitefish spawning in the Detroit River: Implications for habitat and population recovery: Journal of Great Lakes Research, v. 33, no. 2, p. 397-406, https://doi.org/10.1016/S0380-1330(07)70064-3.","productDescription":"10 p.","startPage":"397","endPage":"406","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":238958,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Michigan","otherGeospatial":"Detroit River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -83.16925048828125,\n              42.21427941637547\n            ],\n            [\n              -83.2049560546875,\n              42.01052981889534\n            ],\n            [\n              -83.0841064453125,\n              42.08191667830631\n            ],\n            [\n              -83.06488037109375,\n              42.26511445833756\n            ],\n            [\n              -82.9193115234375,\n              42.36666166373274\n            ],\n            [\n              -83.0950927734375,\n              42.34027515373573\n            ],\n            [\n              -83.16925048828125,\n              42.21427941637547\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"33","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d64e4b0c8380cd52fb7","contributors":{"authors":[{"text":"Roseman, E.F. 0000-0002-5315-9838","orcid":"https://orcid.org/0000-0002-5315-9838","contributorId":76531,"corporation":false,"usgs":true,"family":"Roseman","given":"E.F.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428805,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kennedy, G.W. 0000-0003-1686-6960","orcid":"https://orcid.org/0000-0003-1686-6960","contributorId":86291,"corporation":false,"usgs":true,"family":"Kennedy","given":"G.W.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428808,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boase, J.","contributorId":76939,"corporation":false,"usgs":true,"family":"Boase","given":"J.","affiliations":[],"preferred":false,"id":428806,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Manny, B.A. 0000-0002-4074-9329","orcid":"https://orcid.org/0000-0002-4074-9329","contributorId":6000,"corporation":false,"usgs":true,"family":"Manny","given":"B.A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428803,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Todd, T. N.","contributorId":13931,"corporation":false,"usgs":true,"family":"Todd","given":"T.","email":"","middleInitial":"N.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":428804,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stott, W.","contributorId":77734,"corporation":false,"usgs":true,"family":"Stott","given":"W.","email":"","affiliations":[],"preferred":false,"id":428807,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030814,"text":"70030814 - 2007 - The Sonju Lake layered intrusion, northeast Minnesota: Internal structure and emplacement history inferred from magnetic fabrics","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030814","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3112,"text":"Precambrian Research","active":true,"publicationSubtype":{"id":10}},"title":"The Sonju Lake layered intrusion, northeast Minnesota: Internal structure and emplacement history inferred from magnetic fabrics","docAbstract":"The Sonju Lake intrusion (SLI), in northeastern Minnesota, is a layered mafic complex of Keweenawan age (1096.1 ?? 0.8 Ma) related to the Midcontinent rift. The cumulate paragenesis of the intrusion is recognized as broadly similar to the Skaergaard intrusion, a classic example of closed-system differentiation of a tholeiitic mafic magma. The SLI represents nearly closed-system differentiation through bottom-up fractional crystallization. Geochemical studies have identified the presence of a stratabound, 50-100 m thick zone anomalously enriched in Au + PGE. Similar to the PGE reefs of the Skaergaard intrusion, this PGE-enriched zone is hosted within oxide gabbro cumulates, about two-third of the way up from the base of the intrusion. We present a petrofabric study using the anisotropy of magnetic susceptibility (AMS) to investigate the emplacement and flow patterns within the Sonju Lake intrusion. Petrographic and electron microprobe studies, combined with AMS and hysteresis measurements indicate the primary source of the magnetic signal is pseudo-single domain (PSD) magnetite or titanomagnetite. Low field AMS was measured at 32 sites within the Sonju Lake intrusion, which provided information about primary igneous fabrics. The magnetic fabrics in the layered series of the Sonju Lake intrusion are consistent with sub-horizontal to inclined emplacement of the intrusion and show evidence that the cumulate layers were deposited in a dynamic environment. Well-aligned magnetic lineations, consistently plunging shallowly toward the southwest, indicate the source of the magma is a vertical sill-like feeder, presumably located beneath the Finland granite. The Finland granite acted as a density trap for the Sonju Lake magmas, forcing lateral flow of magma to the northeast. The strongly oblate magnetic shape fabrics indicate the shallowly dipping planar fabrics were enhanced by compaction of the crystal mush. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Precambrian Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.precamres.2007.02.021","issn":"03019268","usgsCitation":"Maes, S., Tikoff, B., Ferre, E., Brown, P., and Miller, J., 2007, The Sonju Lake layered intrusion, northeast Minnesota: Internal structure and emplacement history inferred from magnetic fabrics: Precambrian Research, v. 157, no. 1-4, p. 269-288, https://doi.org/10.1016/j.precamres.2007.02.021.","startPage":"269","endPage":"288","numberOfPages":"20","costCenters":[],"links":[{"id":211633,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.precamres.2007.02.021"},{"id":238957,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"157","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba8f3e4b08c986b321f72","contributors":{"authors":[{"text":"Maes, S.M.","contributorId":74952,"corporation":false,"usgs":true,"family":"Maes","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":428801,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tikoff, B.","contributorId":90934,"corporation":false,"usgs":true,"family":"Tikoff","given":"B.","affiliations":[],"preferred":false,"id":428802,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ferre, E.C.","contributorId":50351,"corporation":false,"usgs":true,"family":"Ferre","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":428799,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, P.E.","contributorId":57655,"corporation":false,"usgs":true,"family":"Brown","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":428800,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Miller, J.D. Jr.","contributorId":18919,"corporation":false,"usgs":true,"family":"Miller","given":"J.D.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":428798,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031329,"text":"70031329 - 2007 - Distinguishing wild vs. stocked lake trout (<i>Salvelinus namaycush</i>) in Lake Ontario: Evidence from carbon and oxygen stable isotope values of otoliths","interactions":[],"lastModifiedDate":"2016-04-28T13:38:13","indexId":"70031329","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Distinguishing wild vs. stocked lake trout (<i>Salvelinus namaycush</i>) in Lake Ontario: Evidence from carbon and oxygen stable isotope values of otoliths","docAbstract":"<p><span>We investigated the potential for using carbon and oxygen isotope values of otolith carbonate as a method to distinguish naturally produced (wild) lake trout (Salvelinus namaycush) from hatchery-reared lake trout in Lake Ontario. We determined &delta;&nbsp;</span><sup>13</sup><span>C</span><sub>(CaCO<sub>3</sub>)</sub><span>&nbsp;and &delta;&nbsp;</span><sup>18</sup><span>O</span><sub>(CaCO<sub>3</sub>)</sub><span>&nbsp;values of otoliths from juvenile fish taken from two hatcheries, and of otoliths from wild yearlings. Clear differences in isotope values were observed between the three groups. Subsequently we examined otoliths from large marked and unmarked fish captured in the lake, determining isotope values for regions of the otolith corresponding to the first year of life. Marked (i.e., stocked) fish showed isotope ratios similar to one of the hatchery groups, whereas unmarked fish, (wild fish or stocked fish that lost the mark) showed isotope ratios similar either to one of the hatchery groups or to the wild group. We interpret these data to suggest that carbon and oxygen isotope values can be used to determine the origin of lake trout in Lake Ontario, if a catalogue of characteristic isotope values from all candidate years and hatcheries is compiled.</span></p>","language":"English","publisher":"International Association for Great Lakes Research","doi":"10.3394/0380-1330(2007)33[912:DWVSLT]2.0.CO;2","issn":"03801330","usgsCitation":"Schaner, T., Patterson, W., Lantry, B., and O'Gorman, R., 2007, Distinguishing wild vs. stocked lake trout (<i>Salvelinus namaycush</i>) in Lake Ontario: Evidence from carbon and oxygen stable isotope values of otoliths: Journal of Great Lakes Research, v. 33, no. 4, p. 912-916, https://doi.org/10.3394/0380-1330(2007)33[912:DWVSLT]2.0.CO;2.","productDescription":"5 p.","startPage":"912","endPage":"916","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":239648,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212198,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3394/0380-1330(2007)33[912:DWVSLT]2.0.CO;2"}],"volume":"33","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0253e4b0c8380cd4ffe1","contributors":{"authors":[{"text":"Schaner, T.","contributorId":12821,"corporation":false,"usgs":true,"family":"Schaner","given":"T.","email":"","affiliations":[],"preferred":false,"id":431072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Patterson, W.P.","contributorId":94858,"corporation":false,"usgs":true,"family":"Patterson","given":"W.P.","email":"","affiliations":[],"preferred":false,"id":431075,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lantry, B.F.","contributorId":19105,"corporation":false,"usgs":true,"family":"Lantry","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":431073,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O'Gorman, R.","contributorId":48896,"corporation":false,"usgs":true,"family":"O'Gorman","given":"R.","affiliations":[],"preferred":false,"id":431074,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030831,"text":"70030831 - 2007 - Dissolution of biogenic ooze over basement edifices in the equatorial Pacific with implications for hydrothermal ventilation of the oceanic crust","interactions":[],"lastModifiedDate":"2023-07-31T12:14:14.264462","indexId":"70030831","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Dissolution of biogenic ooze over basement edifices in the equatorial Pacific with implications for hydrothermal ventilation of the oceanic crust","docAbstract":"<div id=\"15645888\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Recent observations indicate that curious closed depressions in carbonate sediments overlying basement edifices are widespread in the equatorial Pacific. A possible mechanism for their creation is dissolution by fluids exiting basement vents from off-axis hydrothermal flow. Quantitative analysis based on the retrograde solubility of calcium carbonate and cooling of basement fluids during ascent provides an estimate for the dissolution capacity of the venting fluids. Comparison of the dissolution capacity and fluid flux with typical equatorial Pacific carbonate mass accumulation rates shows that this mechanism is feasible. By maintaining sediment-free basement outcrops, the process may promote widespread circulation of relatively unaltered seawater in the basement in an area where average sediment thicknesses are 300–500 m. The enhanced ventilation can explain several previously puzzling observations in this region, including anomalously low heat flux, relatively unaltered seawater in the basement, and aerobic and nitrate-reducing microbial activity at the base of the sediments.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/G23797A.1","issn":"00917613","usgsCitation":"Bekins, B., Spivack, A., Davis, E., and Mayer, L.A., 2007, Dissolution of biogenic ooze over basement edifices in the equatorial Pacific with implications for hydrothermal ventilation of the oceanic crust: Geology, v. 35, no. 8, p. 679-682, https://doi.org/10.1130/G23797A.1.","productDescription":"4 p.","startPage":"679","endPage":"682","numberOfPages":"4","costCenters":[],"links":[{"id":489801,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.uri.edu/gsofacpubs/2570","text":"External Repository"},{"id":238698,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a022ee4b0c8380cd4ff1f","contributors":{"authors":[{"text":"Bekins, B.A.","contributorId":98309,"corporation":false,"usgs":true,"family":"Bekins","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":428872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spivack, A.J.","contributorId":45509,"corporation":false,"usgs":true,"family":"Spivack","given":"A.J.","affiliations":[],"preferred":false,"id":428871,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, E.E.","contributorId":105865,"corporation":false,"usgs":true,"family":"Davis","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":428874,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mayer, L. A.","contributorId":105776,"corporation":false,"usgs":true,"family":"Mayer","given":"L.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":428873,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031172,"text":"70031172 - 2007 - Estimating fishing mortality, natural mortality, and selectivity using recoveries from tagging young fish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031172","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Estimating fishing mortality, natural mortality, and selectivity using recoveries from tagging young fish","docAbstract":"Current methods for estimation of age- and year-specific instantaneous mortality rates based on multiyear, multiple-age tagging studies assume that it is feasible to tag fish in a wide range of ages. For some species, however, only the youngest one or two age-classes are readily available for tagging. Given the practical advantages of tagging young fish only, an important question is whether such studies would provide the information needed for estimation of age-dependent mortality rates. We investigated three designs: tagging only the youngest available age-class, tagging the two youngest age-classes, and tagging the first five age-classes. We carried out simulation studies to assess estimator performance under these three designs, in each case assuming the same total number of tagged fish. Data were generated assuming fishing mortality rates to be age and year dependent and natural mortality rates to be constant or with limited age dependence. Estimator performance is best when fish are tagged in five age-classes, and tagging fish in the two youngest age-classes shows substantial improvement compared with tagging one age-class only. External information about the tag-reporting rate is necessary to obtain estimators with reasonable properties, especially in the case of models with age-dependent natural mortality. Such information can be obtained from auxiliary studies by means of high-reward tags or planted tags. Collecting recovery information for several additional years after the last release produces small improvements in precision and bias. If tagging fish in multiple age-classes is impractical, reasonable precision can be obtained by tagging one or preferably two age-classes and obtaining supplemental information on the reporting rate. For illustration, estimates of age-dependent fishing and natural mortality rates were obtained from tag returns on Chesapeake Bay striped bass Morone saxatilis tagged at ages 3 and 4 years. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-127.1","issn":"02755947","usgsCitation":"Jiang, H., Brownie, C., Hightower, J., and Pollock, K.H., 2007, Estimating fishing mortality, natural mortality, and selectivity using recoveries from tagging young fish: North American Journal of Fisheries Management, v. 27, no. 3, p. 773-781, https://doi.org/10.1577/M06-127.1.","startPage":"773","endPage":"781","numberOfPages":"9","costCenters":[],"links":[{"id":238752,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211460,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-127.1"}],"volume":"27","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-08-01","publicationStatus":"PW","scienceBaseUri":"505a0b1be4b0c8380cd5258e","contributors":{"authors":[{"text":"Jiang, H.","contributorId":83731,"corporation":false,"usgs":true,"family":"Jiang","given":"H.","affiliations":[],"preferred":false,"id":430357,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brownie, C.","contributorId":43463,"corporation":false,"usgs":true,"family":"Brownie","given":"C.","affiliations":[],"preferred":false,"id":430355,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hightower, J.E.","contributorId":16605,"corporation":false,"usgs":true,"family":"Hightower","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":430354,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pollock, K. H.","contributorId":65184,"corporation":false,"usgs":false,"family":"Pollock","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":430356,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031320,"text":"70031320 - 2007 - Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70031320","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1018,"text":"Biological Invasions","active":true,"publicationSubtype":{"id":10}},"title":"Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado","docAbstract":"Understanding species-environment relationships is important to predict the spread of non-native species. Yellow toadflax (Linaria vulgaris Mill.) is an invasive perennial recently found in the Flat Tops Wilderness of the White River National Forest on the western slope of the Colorado Rocky Mountains. We hypothesized yellow toadflax occurrence could be predicted from easily measured site characteristics. We used logistic regression with stepwise selection to generate a model to predict yellow toadflax occurrence on a particular plot based on that site's physical characteristics. The experimental design was a paired-plot study in two locations using circular 1,018-m2 plots. Sixty-eight plots that did not contain yellow toadflax and 65 plots that contained yellow toadflax were sampled at the Ripple Creek site in 1999. In 2000, 54 non-toadflax plots and 55 toadflax-containing plots were sampled in the Marvine Creek site. Site characteristics sampled included: vegetation type; under-canopy light level; slope; aspect; soil properties; presence of disturbance, trails, and/or water; and total species richness. A model that correctly classified >90% of the 242 plots sampled included two vegetation type parameters, the presence of trails, and total species richness. Yellow toadflax is most often found in areas that were open-canopy sites, along trails, and with higher species diversity plots (>23 species). This approach can be used for other species in other areas to rapidly identify areas vulnerable to invasion. ?? 2007 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Invasions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10530-006-9075-8","issn":"13873547","usgsCitation":"Sutton, J., Stohlgren, T., and Beck, K., 2007, Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado: Biological Invasions, v. 9, no. 7, p. 783-793, https://doi.org/10.1007/s10530-006-9075-8.","startPage":"783","endPage":"793","numberOfPages":"11","costCenters":[],"links":[{"id":212587,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10530-006-9075-8"},{"id":240092,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-01-17","publicationStatus":"PW","scienceBaseUri":"505a81e3e4b0c8380cd7b7a8","contributors":{"authors":[{"text":"Sutton, J.R.","contributorId":32735,"corporation":false,"usgs":true,"family":"Sutton","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":431032,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stohlgren, T.J.","contributorId":7217,"corporation":false,"usgs":true,"family":"Stohlgren","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":431030,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beck, K.G.","contributorId":9069,"corporation":false,"usgs":true,"family":"Beck","given":"K.G.","email":"","affiliations":[],"preferred":false,"id":431031,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030923,"text":"70030923 - 2007 - Variation in northern bobwhite demography along two temporal scales","interactions":[],"lastModifiedDate":"2017-12-07T10:59:24","indexId":"70030923","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3103,"text":"Population Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in northern bobwhite demography along two temporal scales","docAbstract":"Quantification and understanding of demographic variation across intra- and inter-annual temporal scales can benefit from the development of theoretical models of evolution and applied conservation of species. We used long-term survey data for northern bobwhites (Colinus virginianus) collected at the northern and southern extent of its geographic range to develop matrix population models which would allow investigation of intra- and inter-annual patterns in bobwhite population dynamics. We first evaluated intra-annual patterns in the importance of a seasonal demographic rate to asymptotic population growth rate with prospective perturbation analysis (elasticity analysis). We then conducted retrospective analysis (life table response experiments) of inter-annual patterns in the contribution of observed changes in demography to the observed change in population growth rate. Survival in the earliest age class during the nonbreeding season had the greatest potential influence in both the northern and southern populations. Examination of inter-annual variation in demography indicated that variation in nonbreeding season survival in the earliest age class contributed the most to observed changes in population growth rate in the northern population. In contrast, changes in fertility in the earliest age class in the southern population had the greatest influence on changes in population growth rate. Prospective elasticity analyses highlight the similarities in bobwhite demography throughout different parts of its geographic range, while retrospective life table response experiments revealed important patterns in the temporal differences of bobwhite life history at the northern and southern extent of its geographic range. ?? 2007 The Society of Population Ecology and Springer.","language":"English","publisher":"Springer","doi":"10.1007/s10144-007-0037-5","issn":"14383896","usgsCitation":"Folk, T., Holmes, R.R., and Grand, J.B., 2007, Variation in northern bobwhite demography along two temporal scales: Population Ecology, v. 49, no. 3, p. 211-219, https://doi.org/10.1007/s10144-007-0037-5.","productDescription":"9 p.","startPage":"211","endPage":"219","numberOfPages":"9","costCenters":[],"links":[{"id":238565,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211296,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10144-007-0037-5"}],"volume":"49","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-02-15","publicationStatus":"PW","scienceBaseUri":"505bc15fe4b08c986b32a542","contributors":{"authors":[{"text":"Folk, T.H.","contributorId":50688,"corporation":false,"usgs":true,"family":"Folk","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":429248,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holmes, Randall R.","contributorId":201221,"corporation":false,"usgs":false,"family":"Holmes","given":"Randall","email":"","middleInitial":"R.","affiliations":[{"id":13360,"text":"Auburn University","active":true,"usgs":false}],"preferred":false,"id":429249,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grand, J. Barry 0000-0002-3576-4567 barry_grand@usgs.gov","orcid":"https://orcid.org/0000-0002-3576-4567","contributorId":579,"corporation":false,"usgs":true,"family":"Grand","given":"J.","email":"barry_grand@usgs.gov","middleInitial":"Barry","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":429247,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030966,"text":"70030966 - 2007 - Aquatic vertebrate assemblages of the upper Clear Creek Watershed, California","interactions":[],"lastModifiedDate":"2021-03-31T12:07:50.61146","indexId":"70030966","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3746,"text":"Western North American Naturalist","onlineIssn":"1944-8341","printIssn":"1527-0904","active":true,"publicationSubtype":{"id":10}},"title":"Aquatic vertebrate assemblages of the upper Clear Creek Watershed, California","docAbstract":"We sampled streams in the Upper Clear Creek Watershed in northwestern California in fall 2004 and fall 2005 to document assemblages of aquatic vertebrates and to provide resource managers with information on the importance of these assemblages in terms of regional biodiversity. We used single-pass backpack electrofishing to sample 15 sites in fall 2004 and the same 15 sites plus 4 new sites in fall 2005. We captured 10 fish taxa and 2 species of larval amphibians. Seven of the fish taxa were native species. Of the exotic species, only brook trout (Salvelinus fontinalis) occurred at more than 1 site. Ordinations by nonmetric multidimensional scaling indicated a gradient from sites with rainbow trout (Oncorhynchus mykiss), Pacific giant salamander (Dicamptodon tenebrosus), and tailed frog (Ascaphus truei) to sites dominated by riffle sculpin (Cottus gulosus), California roach (Hesperoleucas symmetricus), and Sacramento sucker (Catostomus occidentalis). The gradient in species composition was associated with changes in elevation, gradient, discharge, and substrate. The Upper Clear Creek Watershed represents a unique area of overlap between the North Coast California amphibian fauna and the Central Valley fish fauna with a notable paucity of exotic fishes and amphibians. Preservation of the integrity of native aquatic assemblages is an important goal for aquatic resource management in the region; our results provide a critcial baseline to gauge future management actions.","language":"English","publisher":"BioOne","doi":"10.3398/1527-0904(2007)67[439:AVAOTU]2.0.CO;2","issn":"15270904","usgsCitation":"Brown, L., and May, J., 2007, Aquatic vertebrate assemblages of the upper Clear Creek Watershed, California: Western North American Naturalist, v. 67, no. 3, p. 439-451, https://doi.org/10.3398/1527-0904(2007)67[439:AVAOTU]2.0.CO;2.","productDescription":"13 p.","startPage":"439","endPage":"451","numberOfPages":"13","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":486929,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://scholarsarchive.byu.edu/wnan/vol67/iss3/12","text":"External Repository"},{"id":238674,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Upper Clear Creek watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.1187744140625,\n              40.24389506699777\n            ],\n            [\n              -120.99998474121094,\n              40.24389506699777\n            ],\n            [\n              -120.99998474121094,\n              40.36171874694918\n            ],\n            [\n              -121.1187744140625,\n              40.36171874694918\n            ],\n            [\n              -121.1187744140625,\n              40.24389506699777\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"67","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ed14e4b0c8380cd495fb","contributors":{"authors":[{"text":"Brown, L. R. 0000-0001-6702-4531","orcid":"https://orcid.org/0000-0001-6702-4531","contributorId":66391,"corporation":false,"usgs":true,"family":"Brown","given":"L. R.","affiliations":[],"preferred":false,"id":429425,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"May, J. T. 0000-0002-5699-2112","orcid":"https://orcid.org/0000-0002-5699-2112","contributorId":72505,"corporation":false,"usgs":true,"family":"May","given":"J. T.","affiliations":[],"preferred":false,"id":429426,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1003970,"text":"1003970 - 2007 - A comparative analysis of polybrominated diphenyl ethers and polychlorinated biphenyls  in southern sea otters that died of infectious diseases and noninfectious causes","interactions":[],"lastModifiedDate":"2021-05-17T17:54:39.380395","indexId":"1003970","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"A comparative analysis of polybrominated diphenyl ethers and polychlorinated biphenyls  in southern sea otters that died of infectious diseases and noninfectious causes","docAbstract":"<p>Southern sea otters (<i>Enhydra lutris nereis</i>) from the California coast continue to exhibit a slower population regrowth rate than the population in Alaska. Infectious diseases have been identified as a frequent cause of death. Infectious diseases caused by varied pathogens including bacteria, fungi, and parasites were suggestive of compromised immunological health of mature animals in this population. To test the hypothesis that elevated exposure to immunotoxic contaminants such as polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) contribute to disease susceptibility via immunosuppression, we determined concentrations of PBDEs and PCBs in livers of 80 adult female sea otters that died of infectious diseases, noninfectious causes, or emaciation. Concentrations of PBDEs and PCBs in sea otter livers varied widely <span>(10–26,800 ng/g and 81–210,000 ng/g, lipid weight, respectively)</span>. Concentrations of PBDEs in sea otters were some of the highest values reported for marine mammals so far. Although PCB concentrations in sea otters have declined during 1992-2002, the mean concentration was at the threshold at which adverse health effects are elicited. Concentrations of PBDEs and PCBs were significantly correlated, suggesting co-exposure of these contaminants in sea otters. No significant association was found between the concentrations of PBDEs and the health status of sea otters. Concentrations of PCBs were significantly higher in otters in the infectious disease category than in the noninfectious category, suggesting an association between elevated PCB concentrations and infectious diseases in Southern sea otters.</p>","language":"English","publisher":"Springer","doi":"10.1007/s00244-006-0251-8","usgsCitation":"Kannan, K., Perrota, E., Thomas, N., and Aldous, D., 2007, A comparative analysis of polybrominated diphenyl ethers and polychlorinated biphenyls  in southern sea otters that died of infectious diseases and noninfectious causes: Archives of Environmental Contamination and Toxicology, v. 53, no. 2, p. 293-302, https://doi.org/10.1007/s00244-006-0251-8.","productDescription":"10 p.","startPage":"293","endPage":"302","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health 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J. 0000-0002-0161-0391","orcid":"https://orcid.org/0000-0002-0161-0391","contributorId":49731,"corporation":false,"usgs":true,"family":"Thomas","given":"N. J.","affiliations":[],"preferred":false,"id":314778,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aldous, D.M.","contributorId":6829,"corporation":false,"usgs":true,"family":"Aldous","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":314777,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031127,"text":"70031127 - 2007 - A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids","interactions":[],"lastModifiedDate":"2018-09-13T16:25:25","indexId":"70031127","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids","docAbstract":"A flexible, robust method for linking parent (regional-scale) and child (local-scale) grids of locally refined models that use different numerical methods is developed based on a new, iterative ghost-node method. Tests are presented for two-dimensional and three-dimensional pumped systems that are homogeneous or that have simple heterogeneity. The parent and child grids are simulated using the block-centered finite-difference MODFLOW and control-volume finite-element FEHM models, respectively. The models are solved iteratively through head-dependent (child model) and specified-flow (parent model) boundary conditions. Boundary conditions for models with nonmatching grids or zones of different hydraulic conductivity are derived and tested against heads and flows from analytical or globally-refined models. Results indicate that for homogeneous two- and three-dimensional models with matched grids (integer number of child cells per parent cell), the new method is nearly as accurate as the coupling of two MODFLOW models using the shared-node method and, surprisingly, errors are slightly lower for nonmatching grids (noninteger number of child cells per parent cell). For heterogeneous three-dimensional systems, this paper compares two methods for each of the two sets of boundary conditions: external heads at head-dependent boundary conditions for the child model are calculated using bilinear interpolation or a Darcy-weighted interpolation; specified-flow boundary conditions for the parent model are calculated using model-grid or hydrogeologic-unit hydraulic conductivities. Results suggest that significantly more accurate heads and flows are produced when both Darcy-weighted interpolation and hydrogeologic-unit hydraulic conductivities are used, while the other methods produce larger errors at the boundary between the regional and local models. The tests suggest that, if posed correctly, the ghost-node method performs well. Additional testing is needed for highly heterogeneous systems. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Water Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.advwatres.2007.01.004","issn":"03091708","usgsCitation":"Dickinson, J., James, S., Mehl, S., Hill, M.C., Leake, S.A., Zyvoloski, G., Faunt, C., and Eddebbarh, A., 2007, A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids: Advances in Water Resources, v. 30, no. 8, p. 1722-1736, https://doi.org/10.1016/j.advwatres.2007.01.004.","startPage":"1722","endPage":"1736","numberOfPages":"15","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":238616,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211342,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.advwatres.2007.01.004"}],"volume":"30","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4a2e4b0c8380cd467b5","contributors":{"authors":[{"text":"Dickinson, J.E.","contributorId":28790,"corporation":false,"usgs":true,"family":"Dickinson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":430156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"James, S.C.","contributorId":103059,"corporation":false,"usgs":true,"family":"James","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":430160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mehl, S.","contributorId":20114,"corporation":false,"usgs":true,"family":"Mehl","given":"S.","affiliations":[],"preferred":false,"id":430154,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":430157,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430158,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zyvoloski, G.A.","contributorId":20123,"corporation":false,"usgs":true,"family":"Zyvoloski","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":430155,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Faunt, C.C. 0000-0001-5659-7529","orcid":"https://orcid.org/0000-0001-5659-7529","contributorId":103314,"corporation":false,"usgs":true,"family":"Faunt","given":"C.C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":430161,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Eddebbarh, A.-A.","contributorId":101425,"corporation":false,"usgs":true,"family":"Eddebbarh","given":"A.-A.","email":"","affiliations":[],"preferred":false,"id":430159,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70030915,"text":"70030915 - 2007 - Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska","interactions":[],"lastModifiedDate":"2023-07-26T12:08:19.693004","indexId":"70030915","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2604,"text":"Landslides","active":true,"publicationSubtype":{"id":10}},"title":"Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska","docAbstract":"<div id=\"Abs1-section\" class=\"c-article-section\"><div id=\"Abs1-content\" class=\"c-article-section__content\"><p>An unstable rock slump, estimated at 5 to 10 × 10<sup>6</sup>&nbsp;m<sup>3</sup>, lies perched above the northern shore of Tidal Inlet in Glacier Bay National Park, Alaska. This landslide mass has the potential to rapidly move into Tidal Inlet and generate large, long-period-impulse tsunami waves. Field and photographic examination revealed that the landslide moved between 1892 and 1919 after the retreat of the Little Ice Age glaciers from Tidal Inlet in 1890. Global positioning system measurements over a 2-year period show that the perched mass is presently moving at 3–4&nbsp;cm annually indicating the landslide remains unstable. Numerical simulations of landslide-generated waves suggest that in the western arm of Glacier Bay, wave amplitudes would be greatest near the mouth of Tidal Inlet and slightly decrease with water depth according to Green’s law. As a function of time, wave amplitude would be greatest within approximately 40&nbsp;min of the landslide entering water, with significant wave activity continuing for potentially several hours.</p></div></div>","language":"English","publisher":"Springer","doi":"10.1007/s10346-007-0084-1","issn":"1612510X","usgsCitation":"Wieczorek, G.F., Geist, E., Motyka, R., and Jakob, M., 2007, Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska: Landslides, v. 4, no. 3, p. 205-215, https://doi.org/10.1007/s10346-007-0084-1.","productDescription":"11 p.","startPage":"205","endPage":"215","numberOfPages":"11","costCenters":[],"links":[{"id":238964,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Bay National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -138.2661646509066,\n              60.084483896083896\n            ],\n            [\n              -138.2661646509066,\n              57.37268391158136\n            ],\n            [\n              -132.48983440780475,\n              57.37268391158136\n            ],\n            [\n              -132.48983440780475,\n              60.084483896083896\n            ],\n            [\n              -138.2661646509066,\n              60.084483896083896\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-05-08","publicationStatus":"PW","scienceBaseUri":"505a2fc4e4b0c8380cd5d080","contributors":{"authors":[{"text":"Wieczorek, G. F.","contributorId":50143,"corporation":false,"usgs":true,"family":"Wieczorek","given":"G.","middleInitial":"F.","affiliations":[],"preferred":false,"id":429213,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Geist, E.L. 0000-0003-0611-1150","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":71993,"corporation":false,"usgs":true,"family":"Geist","given":"E.L.","affiliations":[],"preferred":false,"id":429214,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Motyka, R.J.","contributorId":49594,"corporation":false,"usgs":true,"family":"Motyka","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":429212,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jakob, M.","contributorId":26513,"corporation":false,"usgs":true,"family":"Jakob","given":"M.","email":"","affiliations":[],"preferred":false,"id":429211,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030829,"text":"70030829 - 2007 - Structure and composition of a watershed-scale sediment information network","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030829","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2072,"text":"International Journal of Sediment Research","active":true,"publicationSubtype":{"id":10}},"title":"Structure and composition of a watershed-scale sediment information network","docAbstract":"A 'Watershed-Scale Sediment Information Network' (WaSSIN), designed to complement UNESCO's International Sedimentation Initiative, was endorsed as an initial project by the World Association for Sedimentation and Erosion Research. WaSSIN is to address global fluvial-sediment information needs through a network approach based on consistent protocols for the collection, analysis, and storage of fluvial-sediment and ancillary information at smaller spatial scales than those of the International Sedimentation Initiative. As a second step of implementation, it is proposed herein that the WaSSIN have a general structure of two components, (1) monitoring and data acquisition and (2) research. Monitoring is to be conducted in small watersheds, each of which has an established database for discharge of water and suspended sediment and possibly for bed load, bed material, and bed topography. Ideally, documented protocols have been used for collecting, analyzing, storing, and sharing the derivative data. The research component is to continue the collection and interpretation of data, to compare those data among candidate watersheds, and to determine gradients of fluxes and processes among the selected watersheds. To define gradients and evaluate processes, the initial watersheds will have several common attributes. Watersheds of the first group will be: (1) six to ten in number, (2) less than 1000 km2 in area, (3) generally in mid-latitudes of continents, and (4) of semiarid climate. Potential candidate watersheds presently include the Weany Creek Basin, northeastern Australia, the Zhi Fanggou catchment, northern China, the Eshtemoa Watershed, southern Israel, the Metsemotlhaba River Basin, Botswana, the Aiuaba Experimental Basin, Brazil, and the Walnut Gulch Experimental Watershed, southwestern United States.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Sediment Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10016279","usgsCitation":"Osterkamp, W.R., Gray, J.R., Laronne, J., and Martin, J., 2007, Structure and composition of a watershed-scale sediment information network: International Journal of Sediment Research, v. 22, no. 3, p. 238-246.","startPage":"238","endPage":"246","numberOfPages":"9","costCenters":[],"links":[{"id":238666,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9c0de4b08c986b31d24a","contributors":{"authors":[{"text":"Osterkamp, W. R.","contributorId":46044,"corporation":false,"usgs":true,"family":"Osterkamp","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":428865,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gray, J. R.","contributorId":63372,"corporation":false,"usgs":true,"family":"Gray","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":428867,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Laronne, J.B.","contributorId":24988,"corporation":false,"usgs":true,"family":"Laronne","given":"J.B.","affiliations":[],"preferred":false,"id":428864,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Martin, J.R.","contributorId":48233,"corporation":false,"usgs":true,"family":"Martin","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":428866,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031325,"text":"70031325 - 2007 - Sexual selection in the squirrel treefrog Hyla squirella: the role of multimodal cue assessment in female choice","interactions":[],"lastModifiedDate":"2014-04-08T10:43:22","indexId":"70031325","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":770,"text":"Animal Behaviour","active":true,"publicationSubtype":{"id":10}},"title":"Sexual selection in the squirrel treefrog Hyla squirella: the role of multimodal cue assessment in female choice","docAbstract":"Anuran amphibians have provided an excellent system for the study of animal communication and sexual selection. Studies of female mate choice in anurans, however, have focused almost exclusively on the role of auditory signals. In this study, we examined the effect of both auditory and visual cues on female choice in the squirrel treefrog. Our experiments used a two-choice protocol in which we varied male vocalization properties, visual cues, or both, to assess female preferences for the different cues. Females discriminated against high-frequency calls and expressed a strong preference for calls that contained more energy per unit time (faster call rate). Females expressed a preference for the visual stimulus of a model of a calling male when call properties at the two speakers were held the same. They also showed a significant attraction to a model possessing a relatively large lateral body stripe. These data indicate that visual cues do play a role in mate attraction in this nocturnal frog species. Furthermore, this study adds to a growing body of evidence that suggests that multimodal signals play an important role in sexual selection.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Animal Behaviour","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.anbehav.2007.03.010","issn":"00033472","usgsCitation":"Taylor, R.C., Buchanan, B.W., and Doherty, J.L., 2007, Sexual selection in the squirrel treefrog Hyla squirella: the role of multimodal cue assessment in female choice: Animal Behaviour, v. 74, no. 6, p. 1753-1763, https://doi.org/10.1016/j.anbehav.2007.03.010.","productDescription":"11 p.","startPage":"1753","endPage":"1763","numberOfPages":"11","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"links":[{"id":212645,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.anbehav.2007.03.010"},{"id":240164,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"74","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8dc1e4b08c986b318549","contributors":{"authors":[{"text":"Taylor, Ryan C.","contributorId":20550,"corporation":false,"usgs":true,"family":"Taylor","given":"Ryan","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":431059,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Buchanan, Bryant W.","contributorId":30041,"corporation":false,"usgs":true,"family":"Buchanan","given":"Bryant","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":431060,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doherty, Jessie L.","contributorId":37960,"corporation":false,"usgs":true,"family":"Doherty","given":"Jessie","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":431061,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030918,"text":"70030918 - 2007 - Use of behavioral and physiological indicators to evaluate Scaphirhynchus sturgeon spawning success","interactions":[],"lastModifiedDate":"2016-12-06T17:49:33","indexId":"70030918","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2166,"text":"Journal of Applied Ichthyology","active":true,"publicationSubtype":{"id":10}},"title":"Use of behavioral and physiological indicators to evaluate Scaphirhynchus sturgeon spawning success","docAbstract":"<p>Thirty gravid, female shovelnose sturgeon (<i>Scaphirhynchus platorynchus</i>) were captured in the Lower Missouri River in March 2004 to evaluate the effectiveness of physiology, telemetry and remote sensor technology coupled with change point analysis in identifying when and where <i>Scaphirhynchus</i> sturgeon spawn. Captured sturgeons were instrumented with ultrasonic transmitters and with archival data storage tags (DST) that recorded temperature and pressure. Female sturgeon were tracked through the suspected spawning period. Thereafter, attempts were made to recapture fish to evaluate spawning success. At the time of transmitter implantation, blood and an ovarian biopsy were taken. Reproductive hormones and cortisol were measured in blood. Polarization indices and germinal vesicle breakdown were assessed on the biopsied oocytes to determine readiness to spawn. Behavioral data collected using telemetry and DST sensors were used to determine the direction and magnitude of possible spawning-related movements and to identify the timing of potential spawning events. Upon recapture observations of the ovaries and blood chemistry provided measures of spawning success and comparative indicators to explain differences in observed behavior. Behavioral and physiological indicators of spawning interpreted along with environmental measures may assist in the determination of variables that may cue sturgeon reproduction and the conditions under which sturgeon successfully spawn.</p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1439-0426.2007.00894.x","issn":"01758659","usgsCitation":"DeLonay, A., Papoulias, D., Wildhaber, M., Annis, M., Bryan, J., Griffith, S., Holan, S., and Tillitt, D.E., 2007, Use of behavioral and physiological indicators to evaluate Scaphirhynchus sturgeon spawning success: Journal of Applied Ichthyology, v. 23, no. 4, p. 428-435, https://doi.org/10.1111/j.1439-0426.2007.00894.x.","productDescription":"8 p.","startPage":"428","endPage":"435","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477035,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1439-0426.2007.00894.x","text":"Publisher Index Page"},{"id":239000,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbec4e4b08c986b329796","contributors":{"authors":[{"text":"DeLonay, A. J. 0000-0002-3752-2799","orcid":"https://orcid.org/0000-0002-3752-2799","contributorId":34246,"corporation":false,"usgs":true,"family":"DeLonay","given":"A. J.","affiliations":[],"preferred":false,"id":429224,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Papoulias, D. M. 0000-0002-5106-2469","orcid":"https://orcid.org/0000-0002-5106-2469","contributorId":58759,"corporation":false,"usgs":true,"family":"Papoulias","given":"D. M.","affiliations":[],"preferred":false,"id":429226,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wildhaber, M. L. 0000-0002-6538-9083","orcid":"https://orcid.org/0000-0002-6538-9083","contributorId":62961,"corporation":false,"usgs":true,"family":"Wildhaber","given":"M. L.","affiliations":[],"preferred":false,"id":429227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Annis, M.L.","contributorId":53930,"corporation":false,"usgs":true,"family":"Annis","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":429225,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bryan, J.L.","contributorId":15328,"corporation":false,"usgs":true,"family":"Bryan","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":429223,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Griffith, S.A.","contributorId":101866,"corporation":false,"usgs":true,"family":"Griffith","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":429230,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Holan, S. H.","contributorId":76453,"corporation":false,"usgs":false,"family":"Holan","given":"S. H.","affiliations":[],"preferred":false,"id":429228,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Tillitt, D. E.","contributorId":83462,"corporation":false,"usgs":true,"family":"Tillitt","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":429229,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70031132,"text":"70031132 - 2007 - Optimal use of resources structures home ranges and spatial distribution of black bears","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031132","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":770,"text":"Animal Behaviour","active":true,"publicationSubtype":{"id":10}},"title":"Optimal use of resources structures home ranges and spatial distribution of black bears","docAbstract":"Research has shown that territories of animals are economical. Home ranges should be similarly efficient with respect to spatially distributed resources and this should structure their distribution on a landscape, although neither has been demonstrated empirically. To test these hypotheses, we used home range models that optimize resource use according to resource-maximizing and area-minimizing strategies to evaluate the home ranges of female black bears, Ursus americanus, living in the southern Appalachian Mountains. We tested general predictions of our models using 104 home ranges of adult female bears studied in the Pisgah Bear Sanctuary, North Carolina, U.S.A., from 1981 to 2001. We also used our models to estimate home ranges for each real home range under a variety of strategies and constraints and compared similarity of simulated to real home ranges. We found that home ranges of female bears were efficient with respect to the spatial distribution of resources and were best explained by an area-minimizing strategy with moderate resource thresholds and low levels of resource depression. Although resource depression probably influenced the spatial distribution of home ranges on the landscape, levels of resource depression were too low to quantify accurately. Home ranges of lactating females had higher resource thresholds and were more susceptible to resource depression than those of breeding females. We conclude that home ranges of animals, like territories, are economical with respect to resources, and that resource depression may be the mechanism behind ideal free or ideal preemptive distributions on complex, heterogeneous landscapes. ?? 2007 The Association for the Study of Animal Behaviour.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Animal Behaviour","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.anbehav.2006.11.017","issn":"00033472","usgsCitation":"Mitchell, M., and Powell, R.A., 2007, Optimal use of resources structures home ranges and spatial distribution of black bears: Animal Behaviour, v. 74, no. 2, p. 219-230, https://doi.org/10.1016/j.anbehav.2006.11.017.","startPage":"219","endPage":"230","numberOfPages":"12","costCenters":[],"links":[{"id":211400,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.anbehav.2006.11.017"},{"id":238683,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"74","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6eede4b0c8380cd75886","contributors":{"authors":[{"text":"Mitchell, M.S.","contributorId":26724,"corporation":false,"usgs":true,"family":"Mitchell","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":430178,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powell, R. A.","contributorId":41789,"corporation":false,"usgs":true,"family":"Powell","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430179,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031322,"text":"70031322 - 2007 - Highstand fans in the California borderland: The overlooked deep-water depositional systems","interactions":[],"lastModifiedDate":"2023-07-26T12:01:19.203508","indexId":"70031322","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Highstand fans in the California borderland: The overlooked deep-water depositional systems","docAbstract":"<div id=\"15648371\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Contrary to widely used sequence-stratigraphic models, lowstand fans are only part of the turbidite depositional record; our analysis reveals that a comparable volume of coarse-grained sediment has been deposited in California borderland deep-water basins regardless of sea level. Sedimentation rates and periods of active sediment transport have been determined for deep-water canyon-channel systems contributing to the southeastern Gulf of Santa Catalina and San Diego Trough since 40 ka using an extensive grid of high-resolution and deep-penetration seismic-reflection data. A regional seismic-reflection horizon (40 ka) has been correlated across the study area using radiocarbon age dates from the Mohole borehole and U.S. Geological Survey piston cores. This study focused on the submarine fans fed by the Oceanside, Carlsbad, and La Jolla Canyons, all of which head within the length of the Ocean-side littoral cell. The Oceanside Canyon–channel system was active from 45 to 13 ka, and the Carlsbad system was active from 50 (or earlier) to 10 ka. The La Jolla system was active over two periods, from 50 (or earlier) to 40 ka, and from 13 ka to the present. One or more of these canyon-channel systems have been active regardless of sea level. During sea-level fluctuation, shelf width between the canyon head and the littoral zone is the primary control on canyon-channel system activity. Highstand fan deposition occurs when a majority of the sediment within the Oceanside littoral cell is intercepted by one of the canyon heads, currently La Jolla Canyon. Since 40 ka, the sedimentation rate on the La Jolla highstand fan has been &gt;2 times the combined rates on the Oceanside and Carlsbad lowstand fans.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/G23800A.1","issn":"00917613","usgsCitation":"Covault, J.A., Normark, W.R., Romans, B.W., and Graham, S.A., 2007, Highstand fans in the California borderland: The overlooked deep-water depositional systems: Geology, v. 35, no. 9, p. 783-786, https://doi.org/10.1130/G23800A.1.","productDescription":"4 p.","startPage":"783","endPage":"786","numberOfPages":"4","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":240129,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,32.53 ], [ -124.41,42.01 ], [ -114.13,42.01 ], [ -114.13,32.53 ], [ -124.41,32.53 ] ] ] } } ] }","volume":"35","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a314ae4b0c8380cd5ddd0","contributors":{"authors":[{"text":"Covault, Jacob A.","contributorId":35951,"corporation":false,"usgs":true,"family":"Covault","given":"Jacob","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":431035,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Normark, William R.","contributorId":69570,"corporation":false,"usgs":true,"family":"Normark","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":431038,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Romans, Brian W.","contributorId":40426,"corporation":false,"usgs":true,"family":"Romans","given":"Brian","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":431036,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Graham, Stephan A.","contributorId":45902,"corporation":false,"usgs":true,"family":"Graham","given":"Stephan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":431037,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031231,"text":"70031231 - 2007 - Kinematic GPS solutions for aircraft trajectories: Identifying and minimizing systematic height errors associated with atmospheric propagation delays","interactions":[],"lastModifiedDate":"2012-03-12T17:21:19","indexId":"70031231","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Kinematic GPS solutions for aircraft trajectories: Identifying and minimizing systematic height errors associated with atmospheric propagation delays","docAbstract":"When kinematic GPS processing software is used to estimate the trajectory of an aircraft, unless the delays imposed on the GPS signals by the atmosphere are either estimated or calibrated via external observations, then vertical height errors of decimeters can occur. This problem is clearly manifested when the aircraft is positioned against multiple base stations in areas of pronounced topography because the aircraft height solutions obtained using different base stations will tend to be mutually offset, or biased, in proportion to the elevation differences between the base stations. When performing kinematic surveys in areas with significant topography it should be standard procedure to use multiple base stations, and to separate them vertically to the maximum extent possible, since it will then be much easier to detect mis-modeling of the atmosphere. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL030889","issn":"00948276","usgsCitation":"Shan, S., Bevis, M., Kendrick, E., Mader, G., Raleigh, D., Hudnut, K., Sartori, M., and Phillips, D., 2007, Kinematic GPS solutions for aircraft trajectories: Identifying and minimizing systematic height errors associated with atmospheric propagation delays: Geophysical Research Letters, v. 34, no. 23, https://doi.org/10.1029/2007GL030889.","costCenters":[],"links":[{"id":477341,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl030889","text":"Publisher Index Page"},{"id":211286,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL030889"},{"id":238551,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"23","noUsgsAuthors":false,"publicationDate":"2007-11-16","publicationStatus":"PW","scienceBaseUri":"505a409be4b0c8380cd64ebe","contributors":{"authors":[{"text":"Shan, S.","contributorId":15401,"corporation":false,"usgs":true,"family":"Shan","given":"S.","email":"","affiliations":[],"preferred":false,"id":430629,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bevis, M.","contributorId":27634,"corporation":false,"usgs":true,"family":"Bevis","given":"M.","email":"","affiliations":[],"preferred":false,"id":430631,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kendrick, E.","contributorId":36357,"corporation":false,"usgs":true,"family":"Kendrick","given":"E.","email":"","affiliations":[],"preferred":false,"id":430632,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mader, G.L.","contributorId":100189,"corporation":false,"usgs":true,"family":"Mader","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":430636,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Raleigh, D.","contributorId":73006,"corporation":false,"usgs":true,"family":"Raleigh","given":"D.","email":"","affiliations":[],"preferred":false,"id":430634,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hudnut, K.","contributorId":92439,"corporation":false,"usgs":true,"family":"Hudnut","given":"K.","affiliations":[],"preferred":false,"id":430635,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sartori, M.","contributorId":19774,"corporation":false,"usgs":true,"family":"Sartori","given":"M.","email":"","affiliations":[],"preferred":false,"id":430630,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Phillips, D.","contributorId":39186,"corporation":false,"usgs":true,"family":"Phillips","given":"D.","affiliations":[],"preferred":false,"id":430633,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70031449,"text":"70031449 - 2007 - Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA","interactions":[],"lastModifiedDate":"2021-06-17T10:30:36.725951","indexId":"70031449","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3814,"text":"Zootaxa","onlineIssn":"1175-5334","printIssn":"1175-5326","active":true,"publicationSubtype":{"id":10}},"title":"Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA","docAbstract":"<p>Recent benthic macroinvertebrate collections from North Carolina contained many undescribed oligochaete taxa, mostly belonging to the family Lumbriculidae. Three of the new species had arrangements of spermathecae and atria previously unreported for the family, and were assigned to new two genera. <i>Pilaridrilus</i> is distinguished by the location of spermathecal pores five segments behind the male pores. The single species, <i>Pilaridrilus uliginosus</i>, also has unusually complex penes and spermathecae. <i>Martinidrilus</i> is distinguished by spermathecae beginning more than two segments anterior to the atrial segment, and also by the the vasa deferentia, which join a common duct before joining the atria. The two <i>Martinidrilus</i> species also have unusual digitiform blood vessels in posterior segments. <i>Martinidrilus carolinensis</i> has lateral spermathecae in VI, and <i>Martinidrilus arenosus</i> has dorsolateral spermathecae in VII and VIII. Because arrangement and morphology of reproductive organs do not resemble those of described lumbriculids, the phylogenetic affinities of the new species are not clear. These new genera and species were generally collected from areas of high water quality, suggesting that lumbriculids can be useful in water quality monitoring and conservation evaluation.&nbsp;</p>","language":"English","publisher":"Magnolia Press","usgsCitation":"Fend, S., and Lenat, D.R., 2007, Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA: Zootaxa, no. 1666, p. 1-22.","productDescription":"22 p.","startPage":"1","endPage":"22","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":239925,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North 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,{"id":70031542,"text":"70031542 - 2007 - Exposure of unionid mussels to electric current: Assessing risks associated with electrofishing","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031542","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Exposure of unionid mussels to electric current: Assessing risks associated with electrofishing","docAbstract":"Electric current is routinely applied in freshwater for scientific sampling of fish populations (i.e., electrofishing). Freshwater mussels (families Margaritiferidae and Unionidae) are distributed worldwide, but their recent declines in diversity and abundance constitute an imperilment of global significance. Freshwater mussels are not targeted for capture by electrofishing, and any exposure to electric current is unintentional. The effects of electric shock are not fully understood for mussels but could disrupt vital physiological processes and represent an additional threat to their survival. In a controlled laboratory environment, we examined the consequences of exposure to two typical electrofishing currents, 60-Hz pulsed DC and 60-Hz AC, for the survival of adult and early life stages of three unionid species; we included fish as a quality control measure. The outcomes suggest that electrical exposure associated with typical electrofishing poses little direct risk to freshwater mussels. That is, adult mussel survival and righting behaviors (indicators of sublethal stress) were not adversely affected by electrical exposure. Glochidia (larvae that attach to and become parasites on fish gills or fins) showed minimal immediate reduction in viability after exposure. Metamorphosis from glochidia to free-living juvenile mussels was not impaired after electric current simulated capture-prone behaviors (stunning) in infested host fish. In addition, the short-term survival of juvenile mussels was not adversely influenced by exposure to electric current. Any minimal risk to imperiled mussels must be weighed at the population level against the benefits gained by using the gear for scientific sampling of fish in the same waters. However, scientists sampling fish by electrofishing should be aware of mussel reproductive periods and processes in order to minimize the harmful effects to host fish, especially in areas where mussel conservation is a concern. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T07-006.1","issn":"00028487","usgsCitation":"Holliman, F., Kwak, T., Cope, W., and Levine, J.F., 2007, Exposure of unionid mussels to electric current: Assessing risks associated with electrofishing: Transactions of the American Fisheries Society, v. 136, no. 6, p. 1593-1606, https://doi.org/10.1577/T07-006.1.","startPage":"1593","endPage":"1606","numberOfPages":"14","costCenters":[],"links":[{"id":212268,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T07-006.1"},{"id":239730,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"136","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"505a0e34e4b0c8380cd53349","contributors":{"authors":[{"text":"Holliman, F.M.","contributorId":86153,"corporation":false,"usgs":true,"family":"Holliman","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":432019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kwak, T.J.","contributorId":104236,"corporation":false,"usgs":true,"family":"Kwak","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":432020,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cope, W.G.","contributorId":71918,"corporation":false,"usgs":true,"family":"Cope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":432017,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Levine, Jay F.","contributorId":80902,"corporation":false,"usgs":false,"family":"Levine","given":"Jay","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":432018,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70174760,"text":"70174760 - 2007 - Emoia atrocostata (Littoral skink)","interactions":[],"lastModifiedDate":"2016-07-15T10:36:24","indexId":"70174760","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1898,"text":"Herpetological Review","active":true,"publicationSubtype":{"id":10}},"title":"Emoia atrocostata (Littoral skink)","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society for the Study of Amphibians and Reptiles","usgsCitation":"Reed, R., Rodda, G., and Hinkle, T., 2007, Emoia atrocostata (Littoral skink): Herpetological Review, v. 38, no. 1, p. 100-100.","productDescription":"1 p.","startPage":"100","endPage":"100","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":325307,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"578a092ee4b0c1aacab7d3f9","contributors":{"authors":[{"text":"Reed, R.N. 0000-0001-8349-6168","orcid":"https://orcid.org/0000-0001-8349-6168","contributorId":49092,"corporation":false,"usgs":true,"family":"Reed","given":"R.N.","affiliations":[],"preferred":false,"id":642574,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rodda, G.H.","contributorId":103998,"corporation":false,"usgs":true,"family":"Rodda","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":642575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hinkle, T.J.","contributorId":73121,"corporation":false,"usgs":true,"family":"Hinkle","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":642576,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70174300,"text":"70174300 - 2007 - Adjusting for telemetry bias in behavior data","interactions":[],"lastModifiedDate":"2018-06-16T17:50:34","indexId":"70174300","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Adjusting for telemetry bias in behavior data","docAbstract":"<p>No abstract available.&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Annual Meeting of the Alaska Chapter of the American Statistical Association","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Annual Meeting of the Alaska Chapter of the American Statistical Association","conferenceDate":"July 24-26, 2007","conferenceLocation":"Anchorage, AK","language":"English","publisher":"American Statistical Association","usgsCitation":"Udevitz, M.S., Jay, C.V., Fischbach, A.S., and Garlich-Miller, J.L., 2007, Adjusting for telemetry bias in behavior data, <i>in</i> Proceedings of the Annual Meeting of the Alaska Chapter of the American Statistical Association, Anchorage, AK, July 24-26, 2007.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":324819,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"577f7d2de4b0ef4d2f45fa92","contributors":{"authors":[{"text":"Udevitz, Mark S. 0000-0003-4659-138X mudevitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4659-138X","contributorId":3189,"corporation":false,"usgs":true,"family":"Udevitz","given":"Mark","email":"mudevitz@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":686908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jay, Chadwick V. 0000-0002-9559-2189 cjay@usgs.gov","orcid":"https://orcid.org/0000-0002-9559-2189","contributorId":192736,"corporation":false,"usgs":true,"family":"Jay","given":"Chadwick","email":"cjay@usgs.gov","middleInitial":"V.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":686909,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fischbach, Anthony S. 0000-0002-6555-865X afischbach@usgs.gov","orcid":"https://orcid.org/0000-0002-6555-865X","contributorId":2865,"corporation":false,"usgs":true,"family":"Fischbach","given":"Anthony","email":"afischbach@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":686910,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Garlich-Miller, Joel L.","contributorId":10696,"corporation":false,"usgs":true,"family":"Garlich-Miller","given":"Joel","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":686911,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
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