We analyze seismic data from the San Andreas Fault (SAF) near Parkfield, California, to test for annual modulation in seismicity rates. We use statistical analyses to show that seismicity is modulated with an annual period in the creeping section of the fault and a semiannual period in the locked section of the fault. Although the exact mechanism for seasonal triggering is undetermined, it appears that stresses associated with the hydrologic cycle are sufficient to fracture critically stressed rocks either through pore‐pressure diffusion or crustal loading/unloading. These results shed additional light on the state of stress along the SAF, indicating that hydrologically induced stress perturbations of ∼2 kPa may be sufficient to trigger earthquakes.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006GL028634","issn":"00948276","usgsCitation":"Christiansen, L., Hurwitz, S., and Ingebritsen, S.E., 2007, Annual modulation of seismicity along the San Andreas Fault near Parkfield, CA: Geophysical Research Letters, v. 34, no. 4, L04306, 5 p., https://doi.org/10.1029/2006GL028634.","productDescription":"L04306, 5 p.","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":487027,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006gl028634","text":"Publisher Index Page"},{"id":241004,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.38955997594803,\n 36.45406645165268\n ],\n [\n -121.38955997594803,\n 35.478200079045834\n ],\n [\n -119.6894256986042,\n 35.478200079045834\n ],\n [\n -119.6894256986042,\n 36.45406645165268\n ],\n [\n -121.38955997594803,\n 36.45406645165268\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"34","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-02-23","publicationStatus":"PW","scienceBaseUri":"5059ec29e4b0c8380cd490e5","contributors":{"authors":[{"text":"Christiansen, L.B.","contributorId":37952,"corporation":false,"usgs":true,"family":"Christiansen","given":"L.B.","email":"","affiliations":[],"preferred":false,"id":438597,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hurwitz, Shaul 0000-0001-5142-6886 shaulh@usgs.gov","orcid":"https://orcid.org/0000-0001-5142-6886","contributorId":2169,"corporation":false,"usgs":true,"family":"Hurwitz","given":"Shaul","email":"shaulh@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":438598,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ingebritsen, Steven E. 0000-0001-6917-9369 seingebr@usgs.gov","orcid":"https://orcid.org/0000-0001-6917-9369","contributorId":818,"corporation":false,"usgs":true,"family":"Ingebritsen","given":"Steven","email":"seingebr@usgs.gov","middleInitial":"E.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":438596,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032930,"text":"70032930 - 2007 - Diversity of terrestrial avifauna in response to distance from the shoreline of the Salton Sea","interactions":[],"lastModifiedDate":"2023-09-08T11:18:43.845764","indexId":"70032930","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2183,"text":"Journal of Arid Environments","active":true,"publicationSubtype":{"id":10}},"title":"Diversity of terrestrial avifauna in response to distance from the shoreline of the Salton Sea","docAbstract":"Large aquatic bodies influence surrounding terrestrial ecosystems by providing water and nutrients. In arid landscapes, the increased primary productivity that results may greatly enhance vertebrate biodiversity. The Salton Sea, a large saline lake in the Colorado Desert of southern California, provides nutrients in the form of hundreds of thousands of dead fish carcasses, brine flies, and chemical compounds through windborne salt sea spray. We performed point counts for landbirds and shorebirds monthly or every other month between March 2001 and February 2002 across a sampling grid of 35 points along the west edge of Salton Sea. We found that avian diversity (numbers of species and numbers per species) was dependent on proximity to the Sea. Diversity was at a maximum nearest the shore, and was significantly lower away from the Sea's edge, at all surveyed distances up to 1 km from the shore. Cover by the dominant shrubs on the study site also corresponded to proximity to the water's edge. Whereas one may hypothesize that the avian diversity patterns are caused by these differences in vegetation structure, our data did not support this. Future studies should further investigate this potential correlation between vegetation and bird patterns. Until more is understood about the relationship between elevated avian diversity and the physical environment of the land-shore interface, our results suggest that the Sea's surface be stabilized near its present level. Future management schemes at the Salton Sea that include reductions of water sources should be carefully analyzed, so as to not jeopardize the terrestrial avifauna at this unique ecosystem.
n/a
","language":"English","publisher":"U.S. Bureau of Reclamation","usgsCitation":"Barry, P., Hayes, B., Scott, A., Luton, C., and Janney, E., 2007, Investigations of adult Lost River, shortnose, and Klamath largescale suckers in Upper Klamath Lake and its tributaries, Oregon. Annual report 2005.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":332688,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"586781fae4b0cd2dabe7c733","contributors":{"authors":[{"text":"Barry, P.M.","contributorId":31574,"corporation":false,"usgs":true,"family":"Barry","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":657090,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayes, B.S.","contributorId":34721,"corporation":false,"usgs":true,"family":"Hayes","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":657091,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scott, A.C.","contributorId":45072,"corporation":false,"usgs":true,"family":"Scott","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":657092,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Luton, C.D.","contributorId":93269,"corporation":false,"usgs":true,"family":"Luton","given":"C.D.","affiliations":[],"preferred":false,"id":657093,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Janney, E.C.","contributorId":43955,"corporation":false,"usgs":true,"family":"Janney","given":"E.C.","affiliations":[],"preferred":false,"id":657094,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70032766,"text":"70032766 - 2007 - Shorebird roost-site selection at two temporal scales: Is human disturbance a factor?","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032766","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Shorebird roost-site selection at two temporal scales: Is human disturbance a factor?","docAbstract":"1. Roost-site selection in shorebirds is governed by ambient factors, including environmental conditions and human disturbance. Determination of the extent to which these factors affect roost use and the associated implications for shorebird habitat protection is important for conservation strategies and informed management of human recreational use of these habitats. Shorebird conservation as a whole is a high priority world-wide because a large proportion of shorebird species is in decline. However, little is understood about the consistency of roost use by different species, what conditions affect species-specific roost-site selection, and at what spatial and temporal scales conditions influence selection. 2. We studied high-tide roost-site selection by eight species of non-breeding shorebirds on a critically important stopover and wintering refuge. We calculated spatial and temporal variability in roost use for each species based on counts and consistency of incidence. We then examined roost-site selection in relation to structural, environmental and human disturbance factors, and how this varied across spatial and temporal scales. 3. Most roosts were used less than 50% of the time, although larger roosts were used more consistently. This varied among species, with red knot Calidris canutus tending to concentrate at a few roosts and American oystercatcher Haematopus palliatus, dowitcher Limnodromus griseus and Limnodromus scolopaceus and ruddy turnstone Arenaria interpres more diffusely distributed among roosts. 4. At an annual scale, the principal factors affecting shorebird presence at roosts were roost length (size), local region, substrate and aspect. The extent and direction of these effects varied among species. Among years, red knots avoided roosts that had high average boat activity within 1000 m, but disturbance did not appear to be a factor for other species. 5. Daily roost use was influenced primarily by wind speed and the ability of roosts to provide shelter from the wind. Only dowitchers appeared to track daily disturbance, avoiding prospective roosts when boat activity within 100 m was high. 6. Synthesis and applications. Our findings emphasize the need to consider species-specific differences in temporal- and spatial-scale effects of roost-site selection factors, including human disturbance, when employing conservation measures for shorebirds. We suggest that conservation management should aim to provide a wide range of potential roosts (both natural and artificial) that could be used under different wind conditions and that are within reasonable travelling distance of preferred feeding areas. Roost use is often highly variable, and monitoring efforts must take this into account before making inferences about changes in use or selection of roost sites. ?? 2006 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2664.2006.01248.x","issn":"00218901","usgsCitation":"Peters, K., and Otis, D.L., 2007, Shorebird roost-site selection at two temporal scales: Is human disturbance a factor?: Journal of Applied Ecology, v. 44, no. 1, p. 196-209, https://doi.org/10.1111/j.1365-2664.2006.01248.x.","startPage":"196","endPage":"209","numberOfPages":"14","costCenters":[],"links":[{"id":213897,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2664.2006.01248.x"},{"id":241567,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-12-22","publicationStatus":"PW","scienceBaseUri":"505b8e8ce4b08c986b3189d7","contributors":{"authors":[{"text":"Peters, K. A.","contributorId":30028,"corporation":false,"usgs":true,"family":"Peters","given":"K. A.","affiliations":[],"preferred":false,"id":437815,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Otis, David L.","contributorId":64396,"corporation":false,"usgs":true,"family":"Otis","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":437816,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032763,"text":"70032763 - 2007 - Assessing exotic plant species invasions and associated soil characteristics: A case study in eastern Rocky Mountain National Park, Colorado, USA, using the pixel nested plot design","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032763","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":846,"text":"Applied Soil Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Assessing exotic plant species invasions and associated soil characteristics: A case study in eastern Rocky Mountain National Park, Colorado, USA, using the pixel nested plot design","docAbstract":"Rocky Mountain National Park (RMNP), Colorado, USA, contains a diversity of plant species. However, many exotic plant species have become established, potentially impacting the structure and function of native plant communities. Our goal was to quantify patterns of exotic plant species in relation to native plant species, soil characteristics, and other abiotic factors that may indicate or predict their establishment and success. Our research approach for field data collection was based on a field plot design called the pixel nested plot. The pixel nested plot provides a link to multi-phase and multi-scale spatial modeling-mapping techniques that can be used to estimate total species richness and patterns of plant diversity at finer landscape scales. Within the eastern region of RMNP, in an area of approximately 35,000 ha, we established a total of 60 pixel nested plots in 9 vegetation types. We used canonical correspondence analysis (CCA) and multiple linear regressions to quantify relationships between soil characteristics and native and exotic plant species richness and cover. We also used linear correlation, spatial autocorrelation and cross correlation statistics to test for the spatial patterns of variables of interest. CCA showed that exotic species were significantly (P < 0.05) associated with photosynthetically active radiation (r = 0.55), soil nitrogen (r = 0.58) and bare ground (r = -0.66). Pearson's correlation statistic showed significant linear relationships between exotic species, organic carbon, soil nitrogen, and bare ground. While spatial autocorrelations indicated that our 60 pixel nested plots were spatially independent, the cross correlation statistics indicated that exotic plant species were spatially associated with bare ground, in general, exotic plant species were most abundant in areas of high native species richness. This indicates that resource managers should focus on the protection of relatively rare native rich sites with little canopy cover, and fertile soils. Using the pixel nested plot approach for data collection can facilitate the ecological monitoring of these vulnerable areas at the landscape scale in a time- and cost-effective manner. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Soil Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apsoil.2006.09.009","issn":"09291393","usgsCitation":"Kalkhan, M.A., Stafford, E., Woodly, P., and Stohlgren, T., 2007, Assessing exotic plant species invasions and associated soil characteristics: A case study in eastern Rocky Mountain National Park, Colorado, USA, using the pixel nested plot design: Applied Soil Ecology, v. 35, no. 3, p. 622-634, https://doi.org/10.1016/j.apsoil.2006.09.009.","startPage":"622","endPage":"634","numberOfPages":"13","costCenters":[],"links":[{"id":241496,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213835,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apsoil.2006.09.009"}],"volume":"35","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059edd3e4b0c8380cd49a25","contributors":{"authors":[{"text":"Kalkhan, M. A.","contributorId":82655,"corporation":false,"usgs":false,"family":"Kalkhan","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":437806,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stafford, E.J.","contributorId":11831,"corporation":false,"usgs":true,"family":"Stafford","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":437804,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Woodly, P.J.","contributorId":35963,"corporation":false,"usgs":true,"family":"Woodly","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":437805,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stohlgren, T.J.","contributorId":7217,"corporation":false,"usgs":true,"family":"Stohlgren","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":437803,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032762,"text":"70032762 - 2007 - Ovarian follicle dynamics of female Greater Scaup during egg production","interactions":[],"lastModifiedDate":"2018-05-13T12:33:26","indexId":"70032762","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Ovarian follicle dynamics of female Greater Scaup during egg production","docAbstract":"Studies of female waterfowl nutrient reserve use during egg production require a precise understanding of ovarian follicle dynamics to correctly interpret breeding status, and, therefore, derive proper inference. Concerns over numerical declines of North American scaup have increased the need to better understand the role of female condition in reproductive performance. We quantified ovarian follicle dynamics of female Greater Scaup (Aythya marila) breeding on the Yukon–Kuskokwim Delta, Alaska, using a method that accounts for within day variation in follicle size. We considered several models for describing changes in follicle growth with the best supported model estimating the duration of rapid follicle growth (RFG) to be 5.20 ± 0.52 days (±95% confidence intervals) for each developing follicle. Average diameter and dry mass of preovulatory follicles were estimated to be 9.36 mm and 0.26 g, respectively, at the onset of RFG, and these follicle characteristics were 41.47 mm and 15.57 g, respectively, at ovulation. The average diameter of postovulatory follicles immediately following ovulation was estimated to be 17.35 mm, regressing quickly over several days. In addition, we derived predictive equations using diameter and dry mass to estimate the number of days before, and after, ovulation for pre- and postovulatory follicles, as well as an equation to estimate dry mass of damaged follicles. Our results allow precise definition of RFG and nest initiation dates, clutch size, and the daily energetic and nutritional demands of egg production at the individual level. This study provides the necessary foundation for additional work on Greater Scaup reproductive energetics and physiology, and offers an approach for quantifying ovarian follicle dynamics in other species.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1557-9263.2006.00086.x","issn":"02738570","usgsCitation":"Gorman, K.B., Flint, P.L., Esler, D., and Williams, T., 2007, Ovarian follicle dynamics of female Greater Scaup during egg production: Journal of Field Ornithology, v. 78, no. 1, p. 64-73, https://doi.org/10.1111/j.1557-9263.2006.00086.x.","productDescription":"10 p.","startPage":"64","endPage":"73","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":241495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1557-9263.2006.00086.x"}],"volume":"78","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a71cce4b0c8380cd76778","contributors":{"authors":[{"text":"Gorman, Kristen B.","contributorId":42437,"corporation":false,"usgs":true,"family":"Gorman","given":"Kristen","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":437800,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":437801,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":437799,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, T.D.","contributorId":53968,"corporation":false,"usgs":false,"family":"Williams","given":"T.D.","email":"","affiliations":[{"id":6953,"text":"Monterey Bay Aquarium","active":true,"usgs":false}],"preferred":false,"id":437802,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031069,"text":"70031069 - 2007 - Tectonic uplift, threshold hillslopes, and denudation rates in a developing mountain range","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031069","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":"Tectonic uplift, threshold hillslopes, and denudation rates in a developing mountain range","docAbstract":"Studies across a broad range of drainage basins have established a positive correlation between mean slope gradient and denudation rates. It has been suggested, however, that this relationship breaks down for catchments where slopes are at their threshold angle of stability because, in such cases, denudation is controlled by the rate of tectonic uplift through the rate of channel incision and frequency of slope failure. This mechanism is evaluated for the San Bernardino Mountains, California, a nascent range that incorporates both threshold hill-slopes and remnants of pre-uplift topography. Concentrations of in situ-produced cosmogenic 10Be in alluvial sediments are used to quantify catchment-wide denudation rates and show a broadly linear relationship with mean slope gradient up to ???30??: above this value denudation rates vary substantially for similar mean slope gradients. We propose that this decoupling in the slope gradient-denudation rate relationship marks the emergence of threshold topography and coincides with the transition from transport-limited to detachment-limited denudation. The survival in the San Bernardino Mountains of surfaces formed prior to uplift provides information on the topographic evolution of the range, in particular the transition from slope-gradient-dependent rates of denudation to a regime where denudation rates are controlled by rates of tectonic uplift. This type of transition may represent a general model for the denudational response to orogenic uplift and topographic evolution during the early stages of mountain building. ?? 2007 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/G23641A.1","issn":"00917613","usgsCitation":"Binnie, S., Phillips, W., Summerfield, M., and Fifield, L., 2007, Tectonic uplift, threshold hillslopes, and denudation rates in a developing mountain range: Geology, v. 35, no. 8, p. 743-746, https://doi.org/10.1130/G23641A.1.","startPage":"743","endPage":"746","numberOfPages":"4","costCenters":[],"links":[{"id":211512,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G23641A.1"},{"id":238811,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba482e4b08c986b3203c9","contributors":{"authors":[{"text":"Binnie, S.A.","contributorId":43975,"corporation":false,"usgs":true,"family":"Binnie","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":429904,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phillips, W.M.","contributorId":49332,"corporation":false,"usgs":true,"family":"Phillips","given":"W.M.","email":"","affiliations":[],"preferred":false,"id":429906,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Summerfield, M.A.","contributorId":18970,"corporation":false,"usgs":true,"family":"Summerfield","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":429903,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fifield, L.K.","contributorId":47575,"corporation":false,"usgs":true,"family":"Fifield","given":"L.K.","email":"","affiliations":[],"preferred":false,"id":429905,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031068,"text":"70031068 - 2007 - Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water","interactions":[],"lastModifiedDate":"2018-10-17T08:26:57","indexId":"70031068","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1396,"text":"Diseases of Aquatic Organisms","active":true,"publicationSubtype":{"id":10}},"title":"Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water","docAbstract":"The fungal pathogen Batrachochytrium dendrobatidis (Bd) causes chytridiomycosis, a disease implicated in amphibian declines on 5 continents. Polymerase chain reaction (PCR) primer sets exist with which amphibians can be tested for this disease, and advances in sampling techniques allow non-invasive testing of animals. We developed filtering and PCR based quantitative methods by modifying existing PCR assays to detect Bd DNA in water and sediments, without the need for testing amphibians; we tested the methods at 4 field sites. The SYBR based assay using Boyle primers (SYBR/Boyle assay) and the Taqman based assay using Wood primers performed similarly with samples generated in the laboratory (Bd spiked filters), but the SYBR/Boyle assay detected Bd DNA in more field samples. We detected Bd DNA in water from 3 of 4 sites tested, including one pond historically negative for chytridiomycosis. Zoospore equivalents in sampled water ranged from 19 to 454 l-1 (nominal detection limit is 10 DNA copies, or about 0.06 zoospore). We did not detect DNA of Bd from sediments collected at any sites. Our filtering and amplification methods provide a new tool to investigate critical aspects of Bd in the environment.
","language":"English","publisher":"Inter-Research","doi":"10.3354/dao01831","issn":"01775103","usgsCitation":"Kirshtein, J.D., Anderson, C., Wood, J., Longcore, J.E., and Voytek, M.A., 2007, Quantitative PCR detection of Batrachochytrium dendrobatidis DNA from sediments and water: Diseases of Aquatic Organisms, v. 77, no. 1, p. 11-15, https://doi.org/10.3354/dao01831.","productDescription":"5 p.","startPage":"11","endPage":"15","numberOfPages":"5","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":487663,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/dao01831","text":"Publisher Index Page"},{"id":238780,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211484,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/dao01831"}],"volume":"77","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a91f9e4b0c8380cd8059d","contributors":{"authors":[{"text":"Kirshtein, Julie D.","contributorId":26033,"corporation":false,"usgs":true,"family":"Kirshtein","given":"Julie","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":429899,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, Chauncey W. 0000-0002-1016-3781 chauncey@usgs.gov","orcid":"https://orcid.org/0000-0002-1016-3781","contributorId":1151,"corporation":false,"usgs":true,"family":"Anderson","given":"Chauncey W.","email":"chauncey@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":false,"id":429898,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wood, J.S.","contributorId":43974,"corporation":false,"usgs":true,"family":"Wood","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":429900,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Longcore, Joyce E.","contributorId":67464,"corporation":false,"usgs":true,"family":"Longcore","given":"Joyce","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":429902,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Voytek, Mary A.","contributorId":91943,"corporation":false,"usgs":true,"family":"Voytek","given":"Mary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":429901,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031066,"text":"70031066 - 2007 - A unified equation for calculating methane vapor pressures in the CH4-H2O system with measured Raman shifts","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031066","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"A unified equation for calculating methane vapor pressures in the CH4-H2O system with measured Raman shifts","docAbstract":"A unified equation has been derived by using all available data for calculating methane vapor pressures with measured Raman shifts of C-H symmetric stretching band (??1) in the vapor phase of sample fluids near room temperature. This equation eliminates discrepancies among the existing data sets and can be applied at any Raman laboratory. Raman shifts of C-H symmetric stretching band of methane in the vapor phase of CH4-H2O mixtures prepared in a high-pressure optical cell were also measured at temperatures between room temperature and 200 ??C, and pressures up to 37 MPa. The results show that the CH4 ??1 band position shifts to higher wavenumber as temperature increases. We also demonstrated that this Raman band shift is a simple function of methane vapor density, and, therefore, when combined with equation of state of methane, methane vapor pressures in the sample fluids at elevated temperatures can be calculated from measured Raman peak positions. This method can be applied to determine the pressure of CH4-bearing systems, such as methane-rich fluid inclusions from sedimentary basins or experimental fluids in hydrothermal diamond-anvil cell or other types of optical cell. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochimica et Cosmochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.gca.2007.06.004","issn":"00167037","usgsCitation":"Lu, W., Chou, I., Burruss, R., and Song, Y., 2007, A unified equation for calculating methane vapor pressures in the CH4-H2O system with measured Raman shifts: Geochimica et Cosmochimica Acta, v. 71, no. 16, p. 3969-3978, https://doi.org/10.1016/j.gca.2007.06.004.","startPage":"3969","endPage":"3978","numberOfPages":"10","costCenters":[],"links":[{"id":211483,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2007.06.004"},{"id":238778,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"16","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e60ae4b0c8380cd47111","contributors":{"authors":[{"text":"Lu, W.","contributorId":47576,"corporation":false,"usgs":true,"family":"Lu","given":"W.","email":"","affiliations":[],"preferred":false,"id":429893,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chou, I.-M. 0000-0001-5233-6479","orcid":"https://orcid.org/0000-0001-5233-6479","contributorId":44283,"corporation":false,"usgs":true,"family":"Chou","given":"I.-M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":429892,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burruss, R.C. 0000-0001-6827-804X","orcid":"https://orcid.org/0000-0001-6827-804X","contributorId":99574,"corporation":false,"usgs":true,"family":"Burruss","given":"R.C.","affiliations":[],"preferred":false,"id":429895,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Song, Y.","contributorId":92443,"corporation":false,"usgs":true,"family":"Song","given":"Y.","email":"","affiliations":[],"preferred":false,"id":429894,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031065,"text":"70031065 - 2007 - Common Loon (Gavia immer) eggshell thickness and egg volume vary with acidity of nest lake in northern Wisconsin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031065","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Common Loon (Gavia immer) eggshell thickness and egg volume vary with acidity of nest lake in northern Wisconsin","docAbstract":"Environmental acidification has been associated with factors that may negatively affect reproduction in many waterbirds. Declines in lake pH can lead to reductions in food availability and quality, or result in the altered availability of toxic metals, such as mercury. A recent laboratory study conducted by the U.S. Geological Survey and the Wisconsin Department of Natural Resources indicated that Common Loon (Gavia immer) chicks hatched from eggs collected on acidic lakes in northern Wisconsin may be less responsive to stimuli and exhibit reduced growth compared to chicks from neutral-pH lakes. Here we report on the relation between Common Loon egg characteristics (eggshell thickness and egg volume) and lake pH, as well as eggshell methylmercury content. Eggs (N = 84) and lake pH measurements were obtained from a four county region of northern Wisconsin. Egg-shells were 3-4% thinner on lakes with pH ??? 6.3 than on neutral-pH lakes and this relation was linear across the pH range investigated (P < 0.05). Egg volume also tended to be larger in eggs from neutral-pH lakes. Eggshell methylmercury content however was not significantly related to shell thickness (P > 0.05, n.s.) or lake pH. Results suggest that low lake pH may be associated with thinner eggshells and reduced egg volume in Common Loons. We speculate on the mechanisms that may lead to this phenomeno.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/1524-4695(2007)030[0367:CLGIET]2.0.CO;2","issn":"15244695","usgsCitation":"Pollentier, C., Kenow, K., and Meyer, M., 2007, Common Loon (Gavia immer) eggshell thickness and egg volume vary with acidity of nest lake in northern Wisconsin: Waterbirds, v. 30, no. 3, p. 367-374, https://doi.org/10.1675/1524-4695(2007)030[0367:CLGIET]2.0.CO;2.","startPage":"367","endPage":"374","numberOfPages":"8","costCenters":[],"links":[{"id":238745,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211454,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2007)030[0367:CLGIET]2.0.CO;2"}],"volume":"30","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f7fae4b0c8380cd4cdf3","contributors":{"authors":[{"text":"Pollentier, C.D.","contributorId":78538,"corporation":false,"usgs":true,"family":"Pollentier","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":429891,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kenow, K.P.","contributorId":18302,"corporation":false,"usgs":true,"family":"Kenow","given":"K.P.","affiliations":[],"preferred":false,"id":429889,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, M.W.","contributorId":38094,"corporation":false,"usgs":true,"family":"Meyer","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":429890,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70180873,"text":"70180873 - 2007 - Migration and the use of Autumn, Winter, and Spring roosts by tree bats","interactions":[],"lastModifiedDate":"2017-02-06T10:36:19","indexId":"70180873","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Migration and the use of Autumn, Winter, and Spring roosts by tree bats","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Bats in forests: Conservation and management","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Johns Hopkins University Press","isbn":"9780801884993","usgsCitation":"Cryan, P.M., and Veilleux, J.P., 2007, Migration and the use of Autumn, Winter, and Spring roosts by tree bats, chap. of Bats in forests: Conservation and management, p. 153-175.","productDescription":"23 p.","startPage":"153","endPage":"175","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334811,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334810,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://jhupbooks.press.jhu.edu/content/bats-forests"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58999945e4b0efcedb71a0af","contributors":{"authors":[{"text":"Cryan, Paul M. 0000-0002-2915-8894 cryanp@usgs.gov","orcid":"https://orcid.org/0000-0002-2915-8894","contributorId":2356,"corporation":false,"usgs":true,"family":"Cryan","given":"Paul","email":"cryanp@usgs.gov","middleInitial":"M.","affiliations":[{"id":547,"text":"Rocky Mountain Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":662654,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Veilleux, J. P.","contributorId":179102,"corporation":false,"usgs":false,"family":"Veilleux","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":662655,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70182550,"text":"70182550 - 2007 - Spatial data infrastructures in management of natural disasters","interactions":[],"lastModifiedDate":"2017-03-27T11:12:03","indexId":"70182550","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Spatial data infrastructures in management of natural disasters","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Research and theory in advancing spatial data infrastructure concepts","language":"English","publisher":"Environmental Systems Research Institute","publisherLocation":"Redlands, CA","usgsCitation":"Asante, K., Verdin, J., Crane, M., Tokar, S., and Rowland, J., 2007, Spatial data infrastructures in management of natural disasters, chap. of Research and theory in advancing spatial data infrastructure concepts, p. 279-293.","productDescription":"15 p. ","startPage":"279","endPage":"293","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":336205,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b1543ee4b01ccd54fc5eb5","contributors":{"editors":[{"text":"Onsrud, H.","contributorId":182471,"corporation":false,"usgs":false,"family":"Onsrud","given":"H.","email":"","affiliations":[],"preferred":false,"id":671576,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Asante, K.O. 0000-0001-5408-1852","orcid":"https://orcid.org/0000-0001-5408-1852","contributorId":17051,"corporation":false,"usgs":true,"family":"Asante","given":"K.O.","affiliations":[],"preferred":false,"id":671571,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Verdin, J. P. 0000-0003-0238-9657","orcid":"https://orcid.org/0000-0003-0238-9657","contributorId":33033,"corporation":false,"usgs":true,"family":"Verdin","given":"J. P.","affiliations":[],"preferred":false,"id":671572,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crane, M.P.","contributorId":78019,"corporation":false,"usgs":true,"family":"Crane","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":671573,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tokar, S.A.","contributorId":67331,"corporation":false,"usgs":true,"family":"Tokar","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":671574,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rowland, James D. 0000-0003-4837-3511","orcid":"https://orcid.org/0000-0003-4837-3511","contributorId":182398,"corporation":false,"usgs":false,"family":"Rowland","given":"James D.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":671575,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70182108,"text":"70182108 - 2007 - Spawning migration movements of Klamath largescale, Lost River, and shortnose suckers in the Williamson and Sprague rivers, Oregon, prior to the removal of Chiloquin Dam. Annual report 2006","interactions":[],"lastModifiedDate":"2017-02-16T11:35:51","indexId":"70182108","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Spawning migration movements of Klamath largescale, Lost River, and shortnose suckers in the Williamson and Sprague rivers, Oregon, prior to the removal of Chiloquin Dam. Annual report 2006","docAbstract":"No abstract available
","language":"English","publisher":"Bureau of Reclamation","usgsCitation":"Ellsworth, C., Luton, C., Tyler, T., VanderKooi, S.P., and Shively, R., 2007, Spawning migration movements of Klamath largescale, Lost River, and shortnose suckers in the Williamson and Sprague rivers, Oregon, prior to the removal of Chiloquin Dam. Annual report 2006.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":335708,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a6c83ae4b025c4642862bc","contributors":{"authors":[{"text":"Ellsworth, C.M.","contributorId":177755,"corporation":false,"usgs":false,"family":"Ellsworth","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":669626,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luton, C.D.","contributorId":93269,"corporation":false,"usgs":true,"family":"Luton","given":"C.D.","affiliations":[],"preferred":false,"id":669627,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tyler, T.J.","contributorId":177756,"corporation":false,"usgs":false,"family":"Tyler","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":669628,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"VanderKooi, S. P.","contributorId":12587,"corporation":false,"usgs":true,"family":"VanderKooi","given":"S.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":669629,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shively, R.S.","contributorId":79642,"corporation":false,"usgs":true,"family":"Shively","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":669630,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70171499,"text":"70171499 - 2007 - In vivo effects of bisphenol A in laboratory rodent studies","interactions":[],"lastModifiedDate":"2016-06-01T16:10:36","indexId":"70171499","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3261,"text":"Reproductive Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"In vivo effects of bisphenol A in laboratory rodent studies","docAbstract":"Concern is mounting regarding the human health and environmental effects of bisphenol A (BPA), a high-production-volume chemical used in synthesis of plastics. We have reviewed the growing literature on effects of low doses of BPA, below 50 mg/(kg day), in laboratory exposures with mammalian model organisms. Many, but not all, effects of BPA are similar to effects seen in response to the model estrogens diethylstilbestrol and ethinylestradiol. For most effects, the potency of BPA is approximately 10–1000-fold less than that of diethylstilbestrol or ethinylestradiol. Based on our review of the literature, a consensus was reached regarding our level of confidence that particular outcomes occur in response to low dose BPA exposure. We are confident that adult exposure to BPA affects the male reproductive tract, and that long lasting, organizational effects in response to developmental exposure to BPA occur in the brain, the male reproductive system, and metabolic processes. We consider it likely, but requiring further confirmation, that adult exposure to BPA affects the brain, the female reproductive system, and the immune system, and that developmental effects occur in the female reproductive system.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.reprotox.2007.06.004","usgsCitation":"Richter, C.A., Birnbaum, L.S., Farabollini, F., Newbold, R.R., Rubin, B.S., Talsness, C.E., Vandenbergh, J.G., Walser-Kuntz, D.R., and vom Saal, F., 2007, In vivo effects of bisphenol A in laboratory rodent studies: Reproductive Toxicology, v. 24, no. 2, p. 199-224, https://doi.org/10.1016/j.reprotox.2007.06.004.","productDescription":"26 p.","startPage":"199","endPage":"224","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477203,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/2151845","text":"External Repository"},{"id":322057,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57500767e4b0ee97d51bb657","contributors":{"authors":[{"text":"Richter, Cathy A. 0000-0001-7322-4206 crichter@usgs.gov","orcid":"https://orcid.org/0000-0001-7322-4206","contributorId":1878,"corporation":false,"usgs":true,"family":"Richter","given":"Cathy","email":"crichter@usgs.gov","middleInitial":"A.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":631337,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Birnbaum, Linda S.","contributorId":169865,"corporation":false,"usgs":false,"family":"Birnbaum","given":"Linda","email":"","middleInitial":"S.","affiliations":[{"id":13672,"text":"US Environmental Protection Agency, Environmental Sciences Division, Research Triangle Park, North Carolina 27711","active":true,"usgs":false}],"preferred":false,"id":631338,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Farabollini, Francesca","contributorId":169867,"corporation":false,"usgs":false,"family":"Farabollini","given":"Francesca","email":"","affiliations":[],"preferred":false,"id":631339,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Newbold, Retha R.","contributorId":169868,"corporation":false,"usgs":false,"family":"Newbold","given":"Retha","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":631340,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rubin, Beverly S.","contributorId":169869,"corporation":false,"usgs":false,"family":"Rubin","given":"Beverly","email":"","middleInitial":"S.","affiliations":[{"id":6936,"text":"Tufts University","active":true,"usgs":false}],"preferred":false,"id":631341,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Talsness, Chris E.","contributorId":169870,"corporation":false,"usgs":false,"family":"Talsness","given":"Chris","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":631342,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Vandenbergh, John G.","contributorId":169871,"corporation":false,"usgs":false,"family":"Vandenbergh","given":"John","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":631343,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Walser-Kuntz, Debby R.","contributorId":169872,"corporation":false,"usgs":false,"family":"Walser-Kuntz","given":"Debby","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":631344,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"vom Saal, Frederick S.","contributorId":17488,"corporation":false,"usgs":true,"family":"vom Saal","given":"Frederick S.","affiliations":[],"preferred":false,"id":631345,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70171497,"text":"70171497 - 2007 - Potential ecotoxicological significance of elevated concentrations of strontium in eggshells of passerine birds","interactions":[],"lastModifiedDate":"2016-06-01T16:00:47","indexId":"70171497","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Potential ecotoxicological significance of elevated concentrations of strontium in eggshells of passerine birds","docAbstract":"We investigated the occurrence and potential ecotoxicological significance of elevated concentrations of strontium (Sr) in eggshells of nine passerine birds from four regions in Arizona. Concentrations of Sr in eggshells ranged from 70 to 1360 µg g−1 dry weight (overall mean = 684 ± 345 SD µg g−1 dw) for the four regions. 23% of the eggshells had Sr concentrations greater than 1000 µg g−1 dw. To our knowledge, these are among the highest levels of Sr that have been reported in bird eggshells in North America. Of the nine species, Brown-headed Cowbirds (Molothrus ater) had the greatest concentrations of Sr. There was a significant positive correlation between Sr and calcium (Ca), and between barium (Ba) and Ca. Ca, Sr, and Ba interact with each other and can exert similar chemical and pharmacological effects. Mean (n ≥ 3) eggshell∶egg ratios for Sr varied with species and ranged from 6.1∶1 to 40.2∶1; ratios for individual eggs reached 92.7∶1. Mean Sr/Ca values ranged from 1.3 × 10−3 to 3.0 × 10−3 and mean eggshell thickness ranged from 83 ± 6 to 120 ± 9 µm for all species. Eggshell thickness was not significantly correlated with Sr for any species but tended to increase with Sr concentrations. We postulate that high concentrations of Sr in the shell could affect later-stage embryos by possible interference with Ca metabolism and bone growth, resulting in reduced hatching success and potential minor beak deformities.
","language":"English","publisher":"Bioone","doi":"10.1650/0010-5422(2007)109[199:PESOEC]2.0.CO;2","usgsCitation":"Mora, M.A., Taylor, R.J., and Brattin, B.L., 2007, Potential ecotoxicological significance of elevated concentrations of strontium in eggshells of passerine birds: Condor, v. 109, no. 1, p. 199-205, https://doi.org/10.1650/0010-5422(2007)109[199:PESOEC]2.0.CO;2.","productDescription":"7 p.","startPage":"199","endPage":"205","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477045,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1650/0010-5422(2007)109[199:pesoec]2.0.co;2","text":"Publisher Index Page"},{"id":322051,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Alamo Lake, Camp Verde, Lower San Pedro River, Roosevelt Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.23897552490234,\n 33.75831312652787\n ],\n [\n -111.24000549316406,\n 33.74860779538701\n ],\n [\n -111.2142562866211,\n 33.72976489909667\n ],\n [\n -111.19022369384766,\n 33.69178103693052\n ],\n [\n -111.11743927001952,\n 33.657209698729595\n ],\n [\n -111.01856231689453,\n 33.638918413507184\n ],\n [\n -110.98628997802734,\n 33.662067667998436\n ],\n [\n -111.00482940673828,\n 33.67235422686427\n ],\n [\n -111.08345031738281,\n 33.69749396908053\n ],\n [\n -111.09443664550781,\n 33.71148904749731\n ],\n [\n -111.10095977783202,\n 33.71148904749731\n ],\n [\n -111.10198974609374,\n 33.70177841892671\n ],\n [\n -111.14627838134766,\n 33.70948989018831\n ],\n [\n -111.17271423339844,\n 33.73804486328909\n ],\n [\n -111.20670318603516,\n 33.75888399414572\n ],\n [\n -111.23554229736328,\n 33.76287996101986\n ],\n [\n -111.23897552490234,\n 33.75831312652787\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.9012451171875,\n 34.6015631772409\n ],\n [\n -111.77627563476562,\n 34.59365010878254\n ],\n [\n -111.78176879882812,\n 34.488447837809304\n ],\n [\n -111.91635131835938,\n 34.508819943055684\n ],\n [\n -111.9012451171875,\n 34.6015631772409\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -113.54524612426756,\n 34.30671846388576\n ],\n [\n -113.56035232543945,\n 34.29537387156913\n ],\n [\n -113.58129501342773,\n 34.279772555356594\n ],\n [\n -113.58798980712889,\n 34.26955921643244\n ],\n [\n -113.5957145690918,\n 34.25366933439269\n ],\n [\n -113.60189437866211,\n 34.23905366851639\n ],\n [\n -113.60275268554688,\n 34.23139007230292\n ],\n [\n -113.59554290771483,\n 34.231673921638496\n ],\n [\n -113.57545852661133,\n 34.23806027872841\n ],\n [\n -113.56189727783203,\n 34.2607634026429\n ],\n [\n -113.54644775390625,\n 34.27892149117007\n ],\n [\n -113.53837966918944,\n 34.29126107845569\n ],\n [\n -113.53511810302734,\n 34.299344653182\n ],\n [\n -113.54284286499023,\n 34.30558407361073\n ],\n [\n -113.54524612426756,\n 34.30671846388576\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -110.775146484375,\n 33.010966715797785\n ],\n [\n -110.7916259765625,\n 32.71104439078295\n ],\n [\n -110.4730224609375,\n 32.812670070909164\n ],\n [\n -110.357666015625,\n 32.914179661793504\n ],\n [\n -110.41397094726562,\n 32.97641208290517\n ],\n [\n -110.72433471679688,\n 33.01557297778958\n ],\n [\n -110.775146484375,\n 33.010966715797785\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"109","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5750076fe4b0ee97d51bb6d5","contributors":{"authors":[{"text":"Mora, Miguel A. 0000-0002-8393-0216","orcid":"https://orcid.org/0000-0002-8393-0216","contributorId":46643,"corporation":false,"usgs":true,"family":"Mora","given":"Miguel","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":631328,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taylor, Robert J.","contributorId":169862,"corporation":false,"usgs":false,"family":"Taylor","given":"Robert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":631329,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brattin, Bryan L.","contributorId":169863,"corporation":false,"usgs":false,"family":"Brattin","given":"Bryan","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":631330,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030173,"text":"70030173 - 2007 - Postseismic relaxation and aftershocks","interactions":[],"lastModifiedDate":"2023-08-03T12:05:55.443136","indexId":"70030173","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Postseismic relaxation and aftershocks","docAbstract":"[1] Perfettini et al. (2005) suggested that the temporal dependence of surface displacements u(t) measured in the epicentral area following an earthquake is related to N(t), the cumulative number of aftershocks, by the equation u(t) = a + bt + cN(t) + d(1 − e−αt), where a, b, c, d, and α are constants chosen to fit the data and t is the postearthquake time. N(t) appears in the expression for u(t) because both the aftershocks and a portion of u(t) are thought to be driven by the same source, postseismic fault creep at subseismogenic depths on the downdip extension of the coseismic rupture. We show that this equation with the actually observed N(t) fits the postseismic displacements recorded on several baselines following each of five earthquakes: 1999 M7.6 Chi-Chi (Taiwan), 1999 M7.1 Hector Mine (southern California), 2002 M7.9 Denali (central Alaska), 2003 M6.5 San Simeon (central California), and 2004 M6.0 Parkfield (central California) earthquakes. Although there are plausible physical interpretations for each of the terms in the expression for u(t), the large number of adjustable constants (a, b, c, d, and α) involved in fitting the rather simple postseismic displacements diminishes the significance of the fit. Because the observed N(t) is well fit by the modified Omori's law, fault creep at depth presumably exhibits the same temporal dependence. That dependence could be explained if the rheology of the fault downdip from the coseismic rupture is consistent with ordinary transient creep. Montesi (2004) demonstrated that power law creep across a shear zone at depth would also produce that temporal signal.
New measurements of thermal infrared emission spectra (250-1400 cm-1; ∼7-40 μm) of experimentally shocked basalt and basaltic andesite (17-56 GPa) exhibit changes in spectral features with increasing pressure consistent with changes in the structure of plagioclase feldspars. Major spectral absorptions in unshocked rocks between 350-700 cm-1 (due to Si-O-Si octahedral bending vibrations) and between 1000-1250 cm-1 (due to Si-O antisymmetric stretch motions of the silica tetrahedra) transform at pressures >20-25 GPa to two broad spectral features centered near 950-1050 and 400-450 cm-1. Linear deconvolution models using spectral libraries composed of common mineral and glass spectra replicate the spectra of shocked basalt relatively well up to shock pressures of 20-25 GPa, above which model errors increase substantially, coincident with the onset of diaplectic glass formation in plagioclase. Inclusion of shocked feldspar spectra in the libraries improves fits for more highly shocked basalt. However, deconvolution models of the basaltic andesite select shocked feldspar end-members even for unshocked samples, likely caused by the higher primary glass content in the basaltic andesite sample.
","language":"English","publisher":"Walter de Gruyter","doi":"10.2138/am.2007.2356","issn":"0003004X","usgsCitation":"Johnson, J.R., Staid, M., and Kraft, M., 2007, Thermal infrared spectroscopy and modeling of experimentally shocked basalts: American Mineralogist, v. 92, no. 7, p. 1148-1157, https://doi.org/10.2138/am.2007.2356.","productDescription":"10 p.","startPage":"1148","endPage":"1157","costCenters":[],"links":[{"id":387205,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"92","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb22ce4b08c986b32564a","contributors":{"authors":[{"text":"Johnson, J. R.","contributorId":69278,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":425986,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Staid, M.I.","contributorId":76505,"corporation":false,"usgs":true,"family":"Staid","given":"M.I.","email":"","affiliations":[],"preferred":false,"id":425987,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kraft, M.D.","contributorId":47250,"corporation":false,"usgs":true,"family":"Kraft","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":425985,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030166,"text":"70030166 - 2007 - A five-year analysis of MODIS NDVI and NDWI for grassland drought assessment over the central Great Plains of the United States","interactions":[],"lastModifiedDate":"2018-02-21T12:57:35","indexId":"70030166","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":"A five-year analysis of MODIS NDVI and NDWI for grassland drought assessment over the central Great Plains of the United States","docAbstract":"A five-year (2001–2005) history of moderate resolution imaging spectroradiometer (MODIS) normalized difference vegetation index (NDVI) and normalized difference water index (NDWI) data was analyzed for grassland drought assessment within the central United States, specifically for the Flint Hills of Kansas and Oklahoma. Initial results show strong relationships among NDVI, NDWI, and drought conditions. During the summer over the Tallgrass Prairie National Preserve, the average NDVI and NDWI were consistently lower (NDVI < 0.5 and NDWI < 0.3) under drought conditions than under non-drought conditions (NDVI>0.6 and NDWI>0.4). NDWI values exhibited a quicker response to drought conditions than NDVI. Analysis revealed that combining information from visible, near infrared, and short wave infrared channels improved sensitivity to drought severity. The proposed normalized difference drought index (NDDI) had a stronger response to summer drought conditions than a simple difference between NDVI and NDWI, and is therefore a more sensitive indicator of drought in grasslands than NDVI alone.
","language":"English","publisher":"AGU","doi":"10.1029/2006GL029127","issn":"00948276","usgsCitation":"Gu, Y., Brown, J.F., Verdin, J., and Wardlow, B., 2007, A five-year analysis of MODIS NDVI and NDWI for grassland drought assessment over the central Great Plains of the United States: Geophysical Research Letters, v. 34, no. 6, p. 1-6, https://doi.org/10.1029/2006GL029127.","productDescription":"Article L06407; 6 p.","startPage":"1","endPage":"6","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":477209,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.7588","text":"External Repository"},{"id":240265,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212732,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006GL029127"}],"volume":"34","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-03-27","publicationStatus":"PW","scienceBaseUri":"5059e3dce4b0c8380cd46277","contributors":{"authors":[{"text":"Gu, Yingxin 0000-0002-3544-1856 ygu@usgs.gov","orcid":"https://orcid.org/0000-0002-3544-1856","contributorId":139586,"corporation":false,"usgs":true,"family":"Gu","given":"Yingxin","email":"ygu@usgs.gov","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":425978,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, Jesslyn F. 0000-0002-9976-1998 jfbrown@usgs.gov","orcid":"https://orcid.org/0000-0002-9976-1998","contributorId":3241,"corporation":false,"usgs":true,"family":"Brown","given":"Jesslyn","email":"jfbrown@usgs.gov","middleInitial":"F.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":425979,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Verdin, J. P. 0000-0003-0238-9657","orcid":"https://orcid.org/0000-0003-0238-9657","contributorId":33033,"corporation":false,"usgs":true,"family":"Verdin","given":"J. P.","affiliations":[],"preferred":false,"id":425980,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wardlow, B.","contributorId":56863,"corporation":false,"usgs":false,"family":"Wardlow","given":"B.","email":"","affiliations":[{"id":12505,"text":"University of Nebraska - Lincoln","active":true,"usgs":false}],"preferred":false,"id":425981,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030165,"text":"70030165 - 2007 - Effect of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030165","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1659,"text":"Fisheries Management and Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Effect of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss","docAbstract":"Catch-and-release angling is popular in many parts of the world and plays an increasingly important role in fish conservation efforts. Although survival rates associated with catch-and-release angling are well documented for many species, sublethal effects have been less studied. An experiment was conducted to directly assess the effects of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss (Walbaum). Catch-and-release events were simulated in laboratory tanks maintained at 15-16 ??C with hooks manually placed in pre-designated locations in the mouths of the fish. There were no differences in standard length (P = 0.59) or wet weight (P = 0.81) gained between caught and uncaught fish over a 1-month angling and recovery period. Survival was 96.99 ?? 0.06% for rainbow trout caught and released, and did not vary with number (one, two or four) of captures. Thus, catch-and-release angling appears to have little effect on growth and mortality of rainbow trout hooked in the mouth. ?? 2007 The Authors. Journal compilation 2007 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fisheries Management and Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2400.2007.00531.x","issn":"0969997X","usgsCitation":"Pope, K., Wilde, G., and Knabe, D., 2007, Effect of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss: Fisheries Management and Ecology, v. 14, no. 2, p. 115-121, https://doi.org/10.1111/j.1365-2400.2007.00531.x.","startPage":"115","endPage":"121","numberOfPages":"7","costCenters":[],"links":[{"id":212704,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2400.2007.00531.x"},{"id":240230,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-03-19","publicationStatus":"PW","scienceBaseUri":"505a05c7e4b0c8380cd50f57","contributors":{"authors":[{"text":"Pope, K.L.","contributorId":20454,"corporation":false,"usgs":true,"family":"Pope","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":425975,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilde, G.R.","contributorId":54799,"corporation":false,"usgs":true,"family":"Wilde","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":425976,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knabe, D.W.","contributorId":68113,"corporation":false,"usgs":true,"family":"Knabe","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":425977,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70171374,"text":"70171374 - 2007 - Diet composition of larval and young-of-year shovelnose sturgeon in the Upper Missouri River","interactions":[],"lastModifiedDate":"2017-08-31T09:29:02","indexId":"70171374","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":"Diet composition of larval and young-of-year shovelnose sturgeon in the Upper Missouri River","docAbstract":"Obtaining food following the transition from endogenous to exogenous feeding and during the first year of life is a critical event that strongly influences growth and survival of young-of-year fishes. For shovelnose sturgeon Scaphirhynchus platorynchus, limited information is available on food habits during the first year of life. The objective of this study was to quantify diet components of shovelnose sturgeon during the transition from endogenous to exogenous feeding and during the young-of-year life stage in the North Dakota and Montana portions of the Missouri River. Young-of-year shovelnose sturgeon were sampled between early August and early September 2003. Shovelnose sturgeon initiated exogenous feeding by 16 mm, and individuals 16–140 mm fed exclusively on two macroinvertebrate orders (Diptera and Ephemeroptera). Young-of-year shovelnose sturgeon exhibited an apparently high feeding success as 99 of 100 individuals contained food in the gut. The number of organisms in the gut increased exponentially with fish length for larval Diptera (r2 = 0.73, P < 0.0001) and linearly (r2 = 0.12, P = 0.0006) for larval Ephemeroptera, but the number of Diptera pupae in the gut was not significantly related (P = 0.55) to length of young-of-year shovelnose sturgeon. The length of ingested prey was linearly related to fish length for Diptera larvae (r2 = 0.20, P = 0.002), whereas the relationship between lengths of ingested Ephemeroptera larvae and lengths of young-of-year shovelnose sturgeon was best described by a power function (r2 = 0.50, P < 0.0001). These results provide the first quantification of feeding dynamics for young-of-year shovelnose sturgeon in a natural river environment.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1439-0426.2006.00822.x","usgsCitation":"Braaten, P., Fuller, D., and McClenning, N., 2007, Diet composition of larval and young-of-year shovelnose sturgeon in the Upper Missouri River: Journal of Applied Ichthyology, v. 23, no. 4, p. 516-520, https://doi.org/10.1111/j.1439-0426.2006.00822.x.","productDescription":"5 p.","startPage":"516","endPage":"520","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477162,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1439-0426.2006.00822.x","text":"Publisher Index Page"},{"id":321845,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana, North Dakota","otherGeospatial":"Missouri River, Yellowstone River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -104.8590087890625,\n 48.11293286919236\n ],\n [\n -104.68048095703125,\n 48.09459164290992\n ],\n [\n -104.48822021484375,\n 48.07807894349862\n ],\n [\n -104.28771972656249,\n 48.021161285657804\n ],\n [\n -104.0789794921875,\n 47.97337538577628\n ],\n [\n -103.99932861328124,\n 47.94394667836211\n ],\n [\n -104.0130615234375,\n 47.864773955792245\n ],\n [\n -104.09820556640625,\n 47.81499895328108\n ],\n [\n -104.16412353515625,\n 47.72269690266812\n ],\n [\n -104.1998291015625,\n 47.663537612601345\n ],\n [\n -104.1064453125,\n 47.657987988142274\n ],\n [\n -103.9306640625,\n 47.87767079094932\n ],\n [\n -103.90594482421874,\n 47.9329065912321\n ],\n [\n -103.77410888671875,\n 47.98072994347796\n ],\n [\n -103.71093749999999,\n 48.01381248943335\n ],\n [\n -103.69171142578125,\n 48.06706753191901\n ],\n [\n -103.6065673828125,\n 48.06706753191901\n ],\n [\n -103.53515625,\n 48.10743118848039\n ],\n [\n -103.63128662109375,\n 48.145930585161196\n ],\n [\n -103.721923828125,\n 48.1349337022896\n ],\n [\n -103.76312255859375,\n 48.090922612296744\n ],\n [\n -103.8153076171875,\n 48.04870994288686\n ],\n [\n -103.88671875,\n 48.004625021133904\n ],\n [\n -104.0185546875,\n 48.01748701847852\n ],\n [\n -104.13116455078124,\n 48.07257353224749\n ],\n [\n -104.25750732421875,\n 48.085418575511994\n ],\n [\n -104.43328857421875,\n 48.12943437745315\n ],\n [\n -104.60357666015625,\n 48.15326053170714\n ],\n [\n -104.79583740234375,\n 48.14776316994868\n ],\n [\n -104.83154296875,\n 48.15326053170714\n ],\n [\n -104.8590087890625,\n 48.11293286919236\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"23","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57496fade4b07e28b665cc52","contributors":{"authors":[{"text":"Braaten, P. J. pbraaten@usgs.gov","contributorId":2724,"corporation":false,"usgs":true,"family":"Braaten","given":"P. J.","email":"pbraaten@usgs.gov","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":false,"id":630769,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fuller, D.B.","contributorId":74116,"corporation":false,"usgs":false,"family":"Fuller","given":"D.B.","email":"","affiliations":[{"id":5099,"text":"Montana Department of Fish, Wildlife, and Parks","active":true,"usgs":false}],"preferred":false,"id":630770,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McClenning, N.D.","contributorId":86169,"corporation":false,"usgs":false,"family":"McClenning","given":"N.D.","affiliations":[{"id":5099,"text":"Montana Department of Fish, Wildlife, and Parks","active":true,"usgs":false}],"preferred":false,"id":630771,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030164,"text":"70030164 - 2007 - Northward extension of Carolina slate belt stratigraphy and structure, South-Central Virginia: Results from geologic mapping","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030164","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"Northward extension of Carolina slate belt stratigraphy and structure, South-Central Virginia: Results from geologic mapping","docAbstract":"Geologic mapping in south-central Virginia demonstrates that the stratigraphy and structure of the Carolina slate belt extend northward across a steep thermal gradient into upper amphibolite-facies correlative gneiss and schist. The Neoproterozoic greenschist-facies Hyco, Aaron, and Virgilina Formations were traced northward from their type localities near Virgilina, Virginia, along a simple, upright, northeast-trending isoclinal syncline. This syncline is called the Dryburg syncline and is a northern extension of the more complex Virgilina synclinorium. Progressively higher-grade equivalents of the Hyco and Aaron Formations were mapped northward along the axial trace of the refolded and westwardly-overturned Dryburg syncline through the Keysville and Green Bay 7.5-minute quadrangles, and across the northern end of the Carolina slate belt as interpreted on previous geologic maps. Hyco rocks, including felsic metatuff, metawacke, and amphibolite, become gneisses upgrade with areas of local anatexis and the segregation of granitic melt into leucosomes with biotite selvages. Phyllite of the Aaron Formation becomes garnet-bearing mica schist. Aaron Formation rocks disconformably overlie the primarily felsic volcanic and volcaniclastic rocks of the Hyco Formation as evidenced by repeated truncation of internal contacts within the Hyco on both limbs of the Dryburg syncline at the Aaron-Hyco contact. East-northeast-trending isograds, defined successively by the first appearance of garnet, then kyanite ?? staurolite in sufficiently aluminous rocks, are superposed on the stratigraphic units and synclinal structure at moderate to high angles to strike. The textural distinction between gneisses and identifiable sedimentary structures occurs near the kyanite ?? staurolite-in isograd. Development of the steep thermal gradient and regional penetrative fabric is interpreted to result from emplacement of the Goochland terrane adjacent to the northern end of the slate belt during Alleghanian orogenesis. This mapping study indicates that the Carolina slate belt does not terminate on the north against through-going faults or rest on higher-grade basement as previously suggested.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Journal of Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2475/04.2007.04","issn":"00029599","usgsCitation":"Hackley, P., Peper, J., Burton, W., and Horton, J.W., 2007, Northward extension of Carolina slate belt stratigraphy and structure, South-Central Virginia: Results from geologic mapping: American Journal of Science, v. 307, no. 4, p. 749-771, https://doi.org/10.2475/04.2007.04.","startPage":"749","endPage":"771","numberOfPages":"23","costCenters":[],"links":[{"id":477184,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2475/04.2007.04","text":"Publisher Index Page"},{"id":212703,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2475/04.2007.04"},{"id":240229,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"307","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6848e4b0c8380cd73700","contributors":{"authors":[{"text":"Hackley, P.C. 0000-0002-5957-2551","orcid":"https://orcid.org/0000-0002-5957-2551","contributorId":60756,"corporation":false,"usgs":true,"family":"Hackley","given":"P.C.","affiliations":[],"preferred":false,"id":425973,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peper, J. D.","contributorId":29387,"corporation":false,"usgs":true,"family":"Peper","given":"J. D.","affiliations":[],"preferred":false,"id":425971,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burton, W.C.","contributorId":41439,"corporation":false,"usgs":true,"family":"Burton","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":425972,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Horton, J. Wright Jr. 0000-0001-6756-6365 whorton@usgs.gov","orcid":"https://orcid.org/0000-0001-6756-6365","contributorId":81184,"corporation":false,"usgs":true,"family":"Horton","given":"J.","suffix":"Jr.","email":"whorton@usgs.gov","middleInitial":"Wright","affiliations":[],"preferred":false,"id":425974,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030154,"text":"70030154 - 2007 - Reconstructing sediment age profiles from historical bathymetry changes in San Pablo Bay, California","interactions":[],"lastModifiedDate":"2023-08-09T11:31:02.587934","indexId":"70030154","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Reconstructing sediment age profiles from historical bathymetry changes in San Pablo Bay, California","docAbstract":"Sediment age profiles reconstructed from a sequence of historical bathymetry changes are used to investigate the subsurface distribution of historical sediments in a subembayment of the San Francisco Estuary. Profiles are created in a grid-based GIS modeling program that stratifies historical deposition into temporal horizons. The model's reconstructions are supported by comparisons to profiles of 137Cs and excess 210Pb at 12 core sites. The predicted depth of the 1951 sediment horizon is positively correlated to the depth of the first occurrence of 137Cs at sites that have been depositional between recent surveys. Reconstructions at sites that have been erosional since the 1951 survey are supported by a lack of detectable 137Cs and excess 210Pb below the upper 6–16 cm of the core. A new data set of predicted near-surface sediment ages was created to illustrate an application of this approach. Results demonstrate other potential applications such as guiding the spatial positioning of future core sites for contaminant measurements.
Nonbreeding habitats are critically important for Rana draytonii, especially for individuals that breed in temporary bodies of water. We radiotracked 123 frogs to evaluate seasonal habitat use. Individual frogs were continuously tracked for up to 16 months. Some individuals remained at breeding ponds all year, but 66% of female and 25% of male frogs moved to nonbreeding areas, even when the breeding site retained water. Frogs at our main study site moved 150 m (median), roughly the distance to the nearest suitable nonbreeding area. The greatest straight-line distance traveled was 1.4 km, although the presumed distance traveled was 2.8 km. Females were more likely than males to move from permanent ponds (38% of females, 16% of males), but among dispersing frogs, males and females did not differ in distance moved. Some frogs left breeding sites shortly after oviposition (median = 12 days for females, 42.5 days for males), but many individuals remained until the site was nearly dry. Fog provided moisture for dispersal or migration throughout the summer. Our data demonstrate that maintaining populations of pond-breeding amphibians requires that all essential habitat components be protected; these include (1) breeding habitat, (2) nonbreeding habitat, and (3) migration corridors. In addition, a buffer is needed around all three areas to ensure that outside activities do not degrade any of the three habitat components.