{"pageNumber":"971","pageRowStart":"24250","pageSize":"25","recordCount":68937,"records":[{"id":70032887,"text":"70032887 - 2007 - Effects of intermittent flow and irradiance level on back reef Porites corals at elevated seawater temperatures","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032887","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2277,"text":"Journal of Experimental Marine Biology and Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of intermittent flow and irradiance level on back reef Porites corals at elevated seawater temperatures","docAbstract":"Corals inhabiting shallow back reef habitats are often simultaneously exposed to elevated seawater temperatures and high irradiance levels, conditions known to cause coral bleaching. Water flow in many tropical back reef systems is tidally influenced, resulting in semi-diurnal or diurnal flow patterns. Controlled experiments were conducted to test effects of semi-diurnally intermittent water flow on photoinhibition and bleaching of the corals Porites lobata and P. cylindrica kept at elevated seawater temperatures and different irradiance levels. All coral colonies were collected from a shallow back reef pool on Ofu Island, American Samoa. In the high irradiance experiments, photoinhibition and bleaching were less for both species in the intermittent high-low flow treatment than in the constant low flow treatment. In the low irradiance experiments, there were no differences in photoinhibition or bleaching for either species between the flow treatments, despite continuously elevated seawater temperatures. These results suggest that intermittent flow associated with semi-diurnal tides, and low irradiances caused by turbidity or shading, may reduce photoinhibition and bleaching of back reef corals during warming events. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Experimental Marine Biology and Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jembe.2006.10.053","issn":"00220981","usgsCitation":"Smith, L., and Birkeland, C., 2007, Effects of intermittent flow and irradiance level on back reef Porites corals at elevated seawater temperatures: Journal of Experimental Marine Biology and Ecology, v. 341, no. 2, p. 282-294, https://doi.org/10.1016/j.jembe.2006.10.053.","startPage":"282","endPage":"294","numberOfPages":"13","costCenters":[],"links":[{"id":241304,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213655,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jembe.2006.10.053"}],"volume":"341","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0728e4b0c8380cd515a9","contributors":{"authors":[{"text":"Smith, L.W.","contributorId":52992,"corporation":false,"usgs":true,"family":"Smith","given":"L.W.","email":"","affiliations":[],"preferred":false,"id":438384,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Birkeland, C.","contributorId":62841,"corporation":false,"usgs":true,"family":"Birkeland","given":"C.","email":"","affiliations":[],"preferred":false,"id":438385,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70032888,"text":"70032888 - 2007 - Latitudinal variation in population structure of wintering Pacific Black Brant","interactions":[],"lastModifiedDate":"2018-08-21T15:46:01","indexId":"70032888","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":"Latitudinal variation in population structure of wintering Pacific Black Brant","docAbstract":"<p><span>Latitudinal variation in population structure during the winter has been reported in many migratory birds, but has been documented in few species of waterfowl. Variation in environmental and social conditions at wintering sites can potentially influence the population dynamics of differential migrants. We examined latitudinal variation in sex and age classes of wintering Pacific Black Brant (</span><i>Branta bernicla nigricans</i><span>). Brant are distributed along a wide latitudinal gradient from Alaska to Mexico during the winter. Accordingly, migration distances for brant using different wintering locations are highly variable and winter settlement patterns are likely associated with a spatially variable food resource. We used resightings of brant banded in southwestern Alaska to examine sex and age ratios of birds wintering at Boundary Bay in British Columbia, and at San Quintin Bay, Ojo de Liebre Lagoon, and San Ignacio Lagoon in Baja California from 1998 to 2000. Sex ratios were similar among wintering locations for adults and were consistent with the mating strategy of geese. The distribution of juveniles varied among wintering areas, with greater proportions of juveniles observed at northern (San Quintin Bay and Ojo de Liebre Lagoon) than at southern (San Ignacio Lagoon) locations in Baja California. We suggest that age-related variation in the winter distribution of Pacific Black Brant is mediated by variation in productivity among individuals at different wintering locations and by social interactions among wintering family groups.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1557-9263.2006.00087.x","issn":"02738570","usgsCitation":"Schamber, J., Sedinger, J.S., Ward, D.H., and Hagmeier, K., 2007, Latitudinal variation in population structure of wintering Pacific Black Brant: Journal of Field Ornithology, v. 78, no. 1, p. 74-82, https://doi.org/10.1111/j.1557-9263.2006.00087.x.","productDescription":"9 p.","startPage":"74","endPage":"82","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":241334,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213683,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1557-9263.2006.00087.x"}],"volume":"78","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4586e4b0c8380cd673c5","contributors":{"authors":[{"text":"Schamber, J.L.","contributorId":92012,"corporation":false,"usgs":true,"family":"Schamber","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":438389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sedinger, James S.","contributorId":84861,"corporation":false,"usgs":false,"family":"Sedinger","given":"James","email":"","middleInitial":"S.","affiliations":[{"id":12742,"text":"University of Nevada Reno","active":true,"usgs":false}],"preferred":false,"id":438388,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","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":438386,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hagmeier, K.R.","contributorId":66924,"corporation":false,"usgs":true,"family":"Hagmeier","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":438387,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70032892,"text":"70032892 - 2007 - Methane gas hydrate effect on sediment acoustic and strength properties","interactions":[],"lastModifiedDate":"2017-09-13T11:55:00","indexId":"70032892","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2419,"text":"Journal of Petroleum Science and Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Methane gas hydrate effect on sediment acoustic and strength properties","docAbstract":"<p>To improve our understanding of the interaction of methane gas hydrate with host sediment, we studied: (1) the effects of gas hydrate and ice on acoustic velocity in different sediment types, (2) effect of different hydrate formation mechanisms on measured acoustic properties (3) dependence of shear strength on pore space contents, and (4) pore pressure effects during undrained shear.</p><p>A wide range in acoustic p-wave velocities (V<sub>p</sub>) were measured in coarse-grained sediment for different pore space occupants. V<sub>p</sub> ranged from less than 1 km/s for gas-charged sediment to 1.77–1.94 km/s for water-saturated sediment, 2.91–4.00 km/s for sediment with varying degrees of hydrate saturation, and 3.88–4.33 km/s for frozen sediment. V<sub>p</sub> measured in fine-grained sediment containing gas hydrate was substantially lower (1.97 km/s). Acoustic models based on measured V<sub>p</sub> indicate that hydrate which formed in high gas flux environments can cement coarse-grained sediment, whereas hydrate formed from methane dissolved in the pore fluid may not.</p><p>The presence of gas hydrate and other solid pore-filling material, such as ice, increased the sediment shear strength. The magnitude of that increase is related to the amount of hydrate in the pore space and cementation characteristics between the hydrate and sediment grains. We have found, that for consolidation stresses associated with the upper several hundred meters of sub-bottom depth, pore pressures decreased during shear in coarse-grained sediment containing gas hydrate, whereas pore pressure in fine-grained sediment typically increased during shear. The presence of free gas in pore spaces damped pore pressure response during shear and reduced the strengthening effect of gas hydrate in sands.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Petroleum Science and Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.petrol.2006.02.003","issn":"09204105","usgsCitation":"Winters, W., Waite, W., Mason, D., Gilbert, L., and Pecher, I., 2007, Methane gas hydrate effect on sediment acoustic and strength properties: Journal of Petroleum Science and Engineering, v. 56, no. 1-3, p. 127-135, https://doi.org/10.1016/j.petrol.2006.02.003.","productDescription":"9 p.","startPage":"127","endPage":"135","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":477008,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/1741","text":"External Repository"},{"id":241401,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5525e4b0c8380cd6d140","contributors":{"authors":[{"text":"Winters, W.J.","contributorId":49796,"corporation":false,"usgs":true,"family":"Winters","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":438401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waite, W.F.","contributorId":40329,"corporation":false,"usgs":true,"family":"Waite","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":438399,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mason, D.H.","contributorId":93952,"corporation":false,"usgs":true,"family":"Mason","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":438402,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gilbert, L.Y.","contributorId":46754,"corporation":false,"usgs":true,"family":"Gilbert","given":"L.Y.","email":"","affiliations":[],"preferred":false,"id":438400,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pecher, I.A.","contributorId":14011,"corporation":false,"usgs":true,"family":"Pecher","given":"I.A.","email":"","affiliations":[],"preferred":false,"id":438398,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031559,"text":"70031559 - 2007 - Tsunami inundation and sediment transport in vicinity of coastal mangrove forest","interactions":[],"lastModifiedDate":"2023-07-25T11:22:49.952899","indexId":"70031559","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Tsunami inundation and sediment transport in vicinity of coastal mangrove forest","docAbstract":"Field measurements from Sumatra of tsunami wave height, erosion and deposition form a comprehensive data set that is tested against the Delft3D tsunami inundation and sediment transport model. Relative agreement between measured and modeled maximum water levels and sediment erosion and accumulation provides confidence that the model is reasonably characterizing the important processes of tsunami inundation. Adding a component to account for vegetation, the model is used to explore the effects of fringing mangrove forests on tsunami inundation and sedimentation. In model experiments, mangrove forests modify the water levels and flow speeds reached during tsunami inundation. Simulations with a mangrove forest result in sedimentation in the forest and not erosion, as occurs in the base case with no forest. This difference in sedimentation is important because the change in profile shape increases wave energy reflection off the beach and decreases wave energy penetration onto land.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","conferenceDate":"May 13-17, 2007","conferenceLocation":"New Orleans, LA","language":"English","publisher":"ASCE","doi":"10.1061/40926(239)86","isbn":"0784409269; 9780784409268","usgsCitation":"Gelfenbaum, G., Vatvani, D., Jaffe, B., and Dekker, F., 2007, Tsunami inundation and sediment transport in vicinity of coastal mangrove forest, <i>in</i> Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, New Orleans, LA, May 13-17, 2007, https://doi.org/10.1061/40926(239)86.","costCenters":[],"links":[{"id":240036,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505bb8a9e4b08c986b3279c7","contributors":{"authors":[{"text":"Gelfenbaum, G.","contributorId":72429,"corporation":false,"usgs":true,"family":"Gelfenbaum","given":"G.","email":"","affiliations":[],"preferred":false,"id":432107,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vatvani, D.","contributorId":6336,"corporation":false,"usgs":true,"family":"Vatvani","given":"D.","affiliations":[],"preferred":false,"id":432106,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jaffe, B.","contributorId":78517,"corporation":false,"usgs":true,"family":"Jaffe","given":"B.","affiliations":[],"preferred":false,"id":432108,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dekker, F.","contributorId":89417,"corporation":false,"usgs":true,"family":"Dekker","given":"F.","email":"","affiliations":[],"preferred":false,"id":432109,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030134,"text":"70030134 - 2007 - Groundwater flow with energy transport and water-ice phase change: Numerical simulations, benchmarks, and application to freezing in peat bogs","interactions":[],"lastModifiedDate":"2018-10-17T09:03:27","indexId":"70030134","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":"Groundwater flow with energy transport and water-ice phase change: Numerical simulations, benchmarks, and application to freezing in peat bogs","docAbstract":"<p>In northern peatlands, subsurface ice formation is an important process that can control heat transport, groundwater flow, and biological activity. Temperature was measured over one and a half years in a vertical profile in the Red Lake Bog, Minnesota. To successfully simulate the transport of heat within the peat profile, the U.S. Geological Survey's SUTRA computer code was modified. The modified code simulates fully saturated, coupled porewater-energy transport, with freezing and melting porewater, and includes proportional heat capacity and thermal conductivity of water and ice, decreasing matrix permeability due to ice formation, and latent heat. The model is verified by correctly simulating the Lunardini analytical solution for ice formation in a porous medium with a mixed ice-water zone. The modified SUTRA model correctly simulates the temperature and ice distributions in the peat bog. Two possible benchmark problems for groundwater and energy transport with ice formation and melting are proposed that may be used by other researchers for code comparison.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Water Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.advwatres.2006.08.008","issn":"03091708","usgsCitation":"McKenzie, J., Voss, C.I., and Siegel, D.I., 2007, Groundwater flow with energy transport and water-ice phase change: Numerical simulations, benchmarks, and application to freezing in peat bogs: Advances in Water Resources, v. 30, no. 4, p. 966-983, https://doi.org/10.1016/j.advwatres.2006.08.008.","productDescription":"18 p.","startPage":"966","endPage":"983","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240262,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212730,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.advwatres.2006.08.008"}],"country":"United States","state":"Minnesota","otherGeospatial":"Red Lake Bog","volume":"30","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2da2e4b0c8380cd5bf70","contributors":{"authors":[{"text":"McKenzie, J.M.","contributorId":75759,"corporation":false,"usgs":true,"family":"McKenzie","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":425843,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425845,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Siegel, D. I.","contributorId":77562,"corporation":false,"usgs":true,"family":"Siegel","given":"D.","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":425844,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031573,"text":"70031573 - 2007 - Effects of flow fluctuations on the spawning habitat of a riverine fish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031573","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3444,"text":"Southeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Effects of flow fluctuations on the spawning habitat of a riverine fish","docAbstract":"Shallow-water, lithophilic spawning fishes are among the most vulnerable to anthropogenic fluctuations in water levels. We monitored water levels and environmental conditions at the nest sites of Moxostoma robustum (Robust Redhorse) on a main-channel gravel bar in the Savannah River, GA-SC During the course of the 2005 spawning season, over 50% of the observed nest sites were either completely dewatered or left in near zero-flow conditions for several days. This occurred on two separate occasions, once early during the spawning season and then again near its conclusion. We hypothesize the habitat preferences of spawning Robust Redhorse leave them vulnerable to water-level fluctuations, and this phenomenon may be widespread in regulated river systems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southeastern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2","issn":"15287092","usgsCitation":"Grabowski, T., and Isely, J.J., 2007, Effects of flow fluctuations on the spawning habitat of a riverine fish: Southeastern Naturalist, v. 6, no. 3, p. 471-478, https://doi.org/10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2.","startPage":"471","endPage":"478","numberOfPages":"8","costCenters":[],"links":[{"id":212243,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1656/1528-7092(2007)6[471:EOFFOT]2.0.CO;2"},{"id":239701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a06f7e4b0c8380cd514d8","contributors":{"authors":[{"text":"Grabowski, T.B.","contributorId":48362,"corporation":false,"usgs":true,"family":"Grabowski","given":"T.B.","email":"","affiliations":[],"preferred":false,"id":432180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Isely, J. Jeffery","contributorId":97224,"corporation":false,"usgs":true,"family":"Isely","given":"J.","email":"","middleInitial":"Jeffery","affiliations":[],"preferred":false,"id":432181,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70032998,"text":"70032998 - 2007 - Longterm trends in nest counts of colonial seabirds in South Carolina, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70032998","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":"Longterm trends in nest counts of colonial seabirds in South Carolina, USA","docAbstract":"We analyzed temporal and spatial trends in annual nest counts of Brown Pelicans (Pelecanus occidentalis), Royal Terns (Sterna maxima), and Sandwich Terns (Sterna sandvicensis) throughout South Carolina from 1969 through 2005. There was an increase in the number of active pelican nests from 1969 through the mid 1980s, although this was followed by a steady decline that continued through 2005. Numbers of Royal Tern nests have declined during the study period, especially since 1990. In contrast, annual counts of active Sandwich Tern nests remained relatively stable through the mid 1980s, then increased substantially and have since remained stable. During the early years of the study, a greater proportion of nests from each species occurred on colonies within the Cape Romain region, although this distribution appears to have shifted with a greater proportion of nests now occurring along the southern coast. At the statewide level and at each of the primary colonies, we observed a positive correlation in counts of Brown Pelican and Royal Tern nests. Mechanisms underlying the observed trends are unclear. We suggest that priorities for research include (1) determination of diet and foraging locales for all three species, (2) impacts of ectoparasites on condition and survival of pelican chicks, and (3) metapopulation structure of all three species. Management activities should focus primarily on protection of colony sites.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/1524-4695(2007)030[0040:LTINCO]2.0.CO;2","issn":"15244695","usgsCitation":"Jodice, P., Murphy, T., Sanders, F., and Ferguson, L., 2007, Longterm trends in nest counts of colonial seabirds in South Carolina, USA: Waterbirds, v. 30, no. 1, p. 40-51, https://doi.org/10.1675/1524-4695(2007)030[0040:LTINCO]2.0.CO;2.","startPage":"40","endPage":"51","numberOfPages":"12","costCenters":[],"links":[{"id":213329,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2007)030[0040:LTINCO]2.0.CO;2"},{"id":240942,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a49c7e4b0c8380cd688a3","contributors":{"authors":[{"text":"Jodice, P.G.R.","contributorId":79846,"corporation":false,"usgs":true,"family":"Jodice","given":"P.G.R.","email":"","affiliations":[],"preferred":false,"id":438905,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murphy, T.M.","contributorId":67295,"corporation":false,"usgs":true,"family":"Murphy","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":438904,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sanders, F.J.","contributorId":45525,"corporation":false,"usgs":true,"family":"Sanders","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":438903,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferguson, L.M.","contributorId":105911,"corporation":false,"usgs":true,"family":"Ferguson","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":438906,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70195443,"text":"70195443 - 2007 - Thermal maturation history of the Wilcox group (Paleocene-Eocene), Texas: Results of regional-scale multi-1D modeling","interactions":[],"lastModifiedDate":"2018-02-15T15:09:37","indexId":"70195443","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"seriesNumber":"27","title":"Thermal maturation history of the Wilcox group (Paleocene-Eocene), Texas: Results of regional-scale multi-1D modeling","docAbstract":"<p>The thermal maturation history of the Paleocene-Eocene Wilcox Group has been reconstructed based on burial history models of 53 wells in the Texas coastal plain. This modeling study has been conducted in conjunction with a geologically based assessment of the oil and gas resources in Cenozoic strata of the Gulf of Mexico coastal plain and state waters. In the onshore Texas coastal plain, coals and organic-rich shales, predominantly of terrestrial origin, within the Wilcox Group are the primary source of oil (<a class=\"link link-ref link-reveal xref-bibr\" data-open=\"ch28r42\">Wenger<span>&nbsp;</span><i>et al.</i>, 1994</a>) as well as a source of gas. The Wilcox, however, is modeled as a single unit, without subdivision into source rock and non-source rock intervals.</p><p>Generation of oil from Type III kerogen within the Wilcox Group is modeled using hydrous pyrolysis reaction kinetic parameters (Lewan, M.D., written communication, 2006). Gas generation from Type III kerogen is represented using calculated Ro values. The models are calibrated with bottom hole temperature (<strong>BHT</strong>), and vitrinite reflectance (<strong>Ro %</strong>) data for the Wilcox Group.<span>&nbsp;</span><strong>Ro</strong><span>&nbsp;</span>data from near-coastal sites have been selected to minimize the possible effects of uplift and erosion and then composited to give a regional<span>&nbsp;</span><strong>Ro</strong>depth trend.</p><p>Model calculations for the study area, the onshore Texas coastal plain, indicate that downdip portions of the basal Wilcox had reached sufficient thermal maturity to generate hydrocarbons by early Eocene (~50 Ma). This relatively early maturation is explained by rapid sediment accumulation in the early Tertiary combined with the reaction kinetic parameters used in the models. Thermal maturation increases through time with increasing burial depth and temperature, gradually moving the maturation front updip. At present day, hydrocarbon generation is complete in the downdip Wilcox within the study area but is currently ongoing in the updip portions of the formation.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Paleogene of the Gulf of Mexico and Caribbean basins: Processes, events, and petroleum systems","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"27th Annual Gulf Coast Section SEPM Foundation Bob F. Perkins Research Conference","conferenceDate":"December 2-5, 2007","conferenceLocation":"Houston, TX","language":"English","publisher":"SEPM Society for Sedimentary Geology","doi":"10.5724/gcs.07.27.0714","isbn":"978-0-9836096-3-6","usgsCitation":"Rowan, E., Warwick, P.D., and Pitman, J.K., 2007, Thermal maturation history of the Wilcox group (Paleocene-Eocene), Texas: Results of regional-scale multi-1D modeling, <i>in</i> The Paleogene of the Gulf of Mexico and Caribbean basins: Processes, events, and petroleum systems, Houston, TX, December 2-5, 2007, p. 714-743, https://doi.org/10.5724/gcs.07.27.0714.","productDescription":"30 p.","startPage":"714","endPage":"743","costCenters":[],"links":[{"id":351667,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":351666,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.gcssepm.org/conference/2007_conference.htm"}],"country":"United States","state":"Texas","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afeff77e4b0da30c1bfcb88","contributors":{"editors":[{"text":"Kennan, Lorcan","contributorId":102036,"corporation":false,"usgs":false,"family":"Kennan","given":"Lorcan","email":"","affiliations":[],"preferred":false,"id":728633,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Pindell, James","contributorId":86137,"corporation":false,"usgs":false,"family":"Pindell","given":"James","email":"","affiliations":[],"preferred":false,"id":728634,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Rosen, Norman C.","contributorId":40565,"corporation":false,"usgs":false,"family":"Rosen","given":"Norman","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":728635,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Rowan, E. L. 0000-0001-5753-6189","orcid":"https://orcid.org/0000-0001-5753-6189","contributorId":34921,"corporation":false,"usgs":true,"family":"Rowan","given":"E. L.","affiliations":[],"preferred":false,"id":728636,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":728637,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pitman, Janet K. 0000-0002-0441-779X jpitman@usgs.gov","orcid":"https://orcid.org/0000-0002-0441-779X","contributorId":767,"corporation":false,"usgs":true,"family":"Pitman","given":"Janet","email":"jpitman@usgs.gov","middleInitial":"K.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":728638,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031574,"text":"70031574 - 2007 - Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae)","interactions":[],"lastModifiedDate":"2017-05-22T16:12:47","indexId":"70031574","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae)","docAbstract":"<p>Water quality data were collected from three drainages supporting the endangered Carolina heelsplitter (Lasmigona decorata) and dwarf wedgemussel (Alasmidonta heterodon) to determine the potential for impaired water quality to limit the recovery of these freshwater mussels in North Carolina, USA. Total recoverable copper, total residual chlorine, and total ammonia nitrogen were measured every two months for approximately a year at sites bracketing wastewater sources and mussel habitat. These data and state monitoring datasets were compared with ecological screening values, including estimates of chemical concentrations likely to be protective of mussels, and federal ambient water quality criteria to assess site risks following a hazard quotient approach. In one drainage, the site-specific ammonia ecological screening value for acute exposures was exceeded in 6% of the samples, and 15% of samples exceeded the chronic ecological screening value; however, ammonia concentrations were generally below levels of concern in other drainages. In all drainages, copper concentrations were higher than ecological screening values most frequently (exceeding the ecological screening values for acute exposures in 65-94% of the samples). Chlorine concentrations exceeding the acute water quality criterion were observed in 14 and 35% of samples in two of three drainages. The ecological screening values were exceeded most frequently in Goose Creek and the Upper Tar River drainages; concentrations rarely exceeded ecological screening values in the Swift Creek drainage except for copper. The site-specific risk assessment approach provides valuable information (including site-specific risk estimates and ecological screening values for protection) that can be applied through regulatory and nonregulatory means to improve water quality for mussels where risks are indicated and pollutant threats persist. ?? 2007 SETAC.</p>","language":"English","publisher":"Wiley","doi":"10.1897/06-561R.1","issn":"07307268","usgsCitation":"Ward, S., Augspurger, T., Dwyer, F., Kane, C., and Ingersoll, C., 2007, Risk assessment of water quality in three North Carolina, USA, streams supporting federally endangered freshwater mussels (Unionidae): Environmental Toxicology and Chemistry, v. 26, no. 10, p. 2075-2085, https://doi.org/10.1897/06-561R.1.","productDescription":"11 p.","startPage":"2075","endPage":"2085","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":239732,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212270,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-561R.1"}],"country":"United States","state":"North Carolina","otherGeospatial":"Goose Creek, Swift Creek, Tar River basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.75225830078125,\n              35.25795517382968\n            ],\n            [\n              -80.4583740234375,\n              35.19625600786368\n            ],\n            [\n              -80.782470703125,\n              34.93885938523973\n            ],\n            [\n              -80.93215942382812,\n              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T.","contributorId":81844,"corporation":false,"usgs":false,"family":"Augspurger","given":"T.","email":"","affiliations":[],"preferred":false,"id":432183,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dwyer, F.J.","contributorId":107818,"corporation":false,"usgs":true,"family":"Dwyer","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":432186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kane, C.","contributorId":101083,"corporation":false,"usgs":true,"family":"Kane","given":"C.","email":"","affiliations":[],"preferred":false,"id":432185,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ingersoll, C.G. 0000-0003-4531-5949","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":56338,"corporation":false,"usgs":true,"family":"Ingersoll","given":"C.G.","affiliations":[],"preferred":false,"id":432182,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031585,"text":"70031585 - 2007 - Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031585","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":"Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin","docAbstract":"We assessed the impact of predation by smallmouth bass Micropterus dolomieu and largemouth bass M. salmoides on juveniles of federally listed Chinook salmon Oncorhynchus tshawytscha and other anadromous salmonid populations in the Lake Washington system. Bass were collected with boat electrofishing equipment in the south end of Lake Washington (February-June) and the Lake Washington Ship Canal (LWSC; April-July), a narrow waterway that smolts must migrate through to reach the marine environment. Genetic analysis was used to identify ingested salmonids to obtain a more precise species-specific consumption estimate. Overall, we examined the stomachs of 783 smallmouth bass and 310 largemouth bass greater than 100 mm fork length (FL). Rates of predation on salmonids in the south end of Lake Washington were generally low for both black bass species. In the LWSC, juvenile salmonids made up a substantial part of bass diets; consumption of salmonids was lower for largemouth bass than for smallmouth bass. Smallmouth bass predation on juvenile salmonids was greatest in June, when salmonids made up approximately 50% of their diet. In the LWSC, overall black bass consumption of salmonids was approximately 36,000 (bioenergetics model) to 46,000 (meal turnover consumption model) juveniles, of which about one-third was juvenile Chinook salmon, one-third was coho salmon O. kisutch, and one-third was sockeye salmon O. nerka. We estimated that about 2,460,000 juvenile Chinook salmon (hatchery and wild sources combined) were produced in the Lake Washington basin in 1999; thus, the mortality estimates in the LWSC range from 0.5% (bioenergetics) to 0.6% (meal turnover). Black bass prey mostly on subyearlings of each salmonid species. The vulnerability of subyearlings to predation can be attributed to their relatively small size; their tendency to migrate when water temperatures exceed 15??C, coinciding with greater black bass activity; and their use of nearshore areas, where overlap with black bass is greatest. We conclude that under current conditions, predation by smallmouth bass and largemouth bass has a minor impact on Chinook salmon and other salmonid populations in the Lake Washington system. ?? 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/M05-221.1","issn":"02755947","usgsCitation":"Tabor, R., Footen, B., Fresh, K., Celedonia, M., Mejia, F., Low, D., and Park, L., 2007, Smallmouth bass and largemouth bass predation on juvenile Chinook salmon and other salmonids in the Lake Washington basin: North American Journal of Fisheries Management, v. 27, no. 4, p. 1174-1188, https://doi.org/10.1577/M05-221.1.","startPage":"1174","endPage":"1188","numberOfPages":"15","costCenters":[],"links":[{"id":239934,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212445,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-221.1"}],"volume":"27","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-11-01","publicationStatus":"PW","scienceBaseUri":"505b91a2e4b08c986b3199ec","contributors":{"authors":[{"text":"Tabor, R.A.","contributorId":17044,"corporation":false,"usgs":true,"family":"Tabor","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":432221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Footen, B.A.","contributorId":8676,"corporation":false,"usgs":true,"family":"Footen","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":432219,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fresh, K.L.","contributorId":105916,"corporation":false,"usgs":true,"family":"Fresh","given":"K.L.","affiliations":[],"preferred":false,"id":432225,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Celedonia, M.T.","contributorId":10619,"corporation":false,"usgs":true,"family":"Celedonia","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":432220,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mejia, F.","contributorId":73011,"corporation":false,"usgs":true,"family":"Mejia","given":"F.","email":"","affiliations":[],"preferred":false,"id":432224,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Low, D.L.","contributorId":20976,"corporation":false,"usgs":true,"family":"Low","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":432222,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Park, L.","contributorId":36269,"corporation":false,"usgs":true,"family":"Park","given":"L.","email":"","affiliations":[],"preferred":false,"id":432223,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70031586,"text":"70031586 - 2007 - High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031586","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3075,"text":"Physiological and Biochemical Zoology","active":true,"publicationSubtype":{"id":10}},"title":"High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea","docAbstract":"We measured water flux and energy expenditure in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea by using the doubly labeled water method. Previous laboratory investigations have suggested weak urinary concentrating ability, high rates of water flux, and low basal metabolic rates in this species. However, free-ranging measurements from hygric mammals are rare, and it is not known how these features interact in the environment. Rates of water flux (210 ?? 32 mL d-1) and field metabolic rates (1,488 ?? 486 kJ d-1) were 159% and 265%, respectively, of values predicted by allometric equations for similar-sized herbivores. Mountain beavers can likely meet their water needs through metabolic water production and preformed water in food and thus remain in water balance without access to free water. Arginine-vasopressin levels were strongly correlated with rates of water flux and plasma urea : creatinine ratios, suggesting an important role for this hormone in regulating urinary water loss in mountain beavers. High field metabolic rates may result from cool burrow temperatures that are well below lower critical temperatures measured in previous laboratory studies and suggest that thermoregulation costs may strongly influence field energetics and water flux in semifossorial mammals. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Physiological and Biochemical Zoology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/521204","issn":"15222152","usgsCitation":"Crocker, D., Kofahl, N., Fellers, G., Gates, N., and Houser, D., 2007, High rates of energy expenditure and water flux in free-ranging Point Reyes mountain beavers Aplodontia rufa phaea: Physiological and Biochemical Zoology, v. 80, no. 6, p. 635-642, https://doi.org/10.1086/521204.","startPage":"635","endPage":"642","numberOfPages":"8","costCenters":[],"links":[{"id":477228,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10211.3/123164","text":"External Repository"},{"id":239935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212446,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/521204"}],"volume":"80","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30c6e4b0c8380cd5d936","contributors":{"authors":[{"text":"Crocker, D.E.","contributorId":103084,"corporation":false,"usgs":true,"family":"Crocker","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":432229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kofahl, N.","contributorId":9068,"corporation":false,"usgs":true,"family":"Kofahl","given":"N.","email":"","affiliations":[],"preferred":false,"id":432226,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fellers, G.D.","contributorId":33922,"corporation":false,"usgs":true,"family":"Fellers","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":432227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gates, N.B.","contributorId":104708,"corporation":false,"usgs":true,"family":"Gates","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":432230,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Houser, D.S.","contributorId":45117,"corporation":false,"usgs":true,"family":"Houser","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":432228,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70032896,"text":"70032896 - 2007 - Characteristics of Columbia spotted frog (Rana luteiventris) oviposition sites in northeastern Oregon, USA","interactions":[],"lastModifiedDate":"2018-03-29T15:02:17","indexId":"70032896","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":"Characteristics of Columbia spotted frog (Rana luteiventris) oviposition sites in northeastern Oregon, USA","docAbstract":"<p><span>Several western ranid frogs possess a unique strategy of breeding communally over a short temporal window and reusing oviposition sites between years. However, little is published on the characteristics of oviposition sites selected by these explosive breeders. The Columbia spotted frog (</span><i>Rana luteiventris</i><span>) is native to northwestern North America and is of conservation concern in the southern portions of its range. As part of a study examining relationships between livestock grazing and<span>&nbsp;</span></span><i>R. luteiventris</i><span><span>&nbsp;</span>habitat, we assessed characteristics of the species' oviposition sites in 25 fishless ponds in northeastern Oregon. Oviposition sites were generally in shallow water (&lt;25 cm) close to shore and tended to be in the northeastern portion of ponds. Oviposition sites were found more frequently over heavily vegetated substrates and in areas of less substrate slope and shade than random points in littoral zones. We did not quantify temperature differences within ponds, but the patterns we documented are consistent with preferential use of warmer microhabitats for oviposition.</span></p>","language":"English","publisher":"Monte L. Bean Life Science Museum, Brigham Young University","doi":"10.3398/1527-0904(2007)67[86:COCSFR]2.0.CO;2","issn":"15270904","usgsCitation":"Pearl, C.A., Adams, M.J., and Wente, W., 2007, Characteristics of Columbia spotted frog (Rana luteiventris) oviposition sites in northeastern Oregon, USA: Western North American Naturalist, v. 67, no. 1, p. 86-91, https://doi.org/10.3398/1527-0904(2007)67[86:COCSFR]2.0.CO;2.","productDescription":"6 p.","startPage":"86","endPage":"91","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":487783,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://scholarsarchive.byu.edu/wnan/vol67/iss1/12","text":"External Repository"},{"id":240935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213322,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3398/1527-0904(2007)67[86:COCSFR]2.0.CO;2"}],"volume":"67","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f490e4b0c8380cd4bdb7","contributors":{"authors":[{"text":"Pearl, Christopher A. 0000-0003-2943-7321 christopher_pearl@usgs.gov","orcid":"https://orcid.org/0000-0003-2943-7321","contributorId":3131,"corporation":false,"usgs":true,"family":"Pearl","given":"Christopher","email":"christopher_pearl@usgs.gov","middleInitial":"A.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":438419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, M. J. 0000-0001-8844-042X mjadams@usgs.gov","orcid":"https://orcid.org/0000-0001-8844-042X","contributorId":3133,"corporation":false,"usgs":false,"family":"Adams","given":"M.","email":"mjadams@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":438418,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wente, Wendy","contributorId":60497,"corporation":false,"usgs":true,"family":"Wente","given":"Wendy","email":"","affiliations":[],"preferred":false,"id":438420,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032901,"text":"70032901 - 2007 - Spatiotemporal variability of stream habitat and movement of three species of fish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70032901","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Spatiotemporal variability of stream habitat and movement of three species of fish","docAbstract":"Relationships between environmental variability and movement are poorly understood, due to both their complexity and the limited ecological scope of most movement studies. We studied movements of fantail (Etheostoma flabellare), riverweed (E. podostemone), and Roanoke darters (Percina roanoka) through two stream systems during two summers. We then related movement to variability in measured habitat attributes using logistic regression and exploratory data plots. We indexed habitat conditions at both microhabitat (i.e., patches of uniform depth, velocity, and substrate) and mesohabitat (i.e., riffle and pool channel units) spatial scales, and determined how local habitat conditions were affected by landscape spatial (i.e., longitudinal position, land use) and temporal contexts. Most spatial variability in habitat conditions and fish movement was unexplained by a site's location on the landscape. Exceptions were microhabitat diversity, which was greater in the less-disturbed watershed, and riffle isolation and predator density in pools, which were greater at more-downstream sites. Habitat conditions and movement also exhibited only minor temporal variability, but the relative influences of habitat attributes on movement were quite variable over time. During the first year, movements of fantail and riverweed darters were triggered predominantly by loss of shallow microhabitats; whereas, during the second year, microhabitat diversity was more strongly related (though in opposite directions) to movement of these two species. Roanoke darters did not move in response to microhabitat-scale variables, presumably because of the species' preference for deeper microhabitats that changed little over time. Conversely, movement of all species appeared to be constrained by riffle isolation and predator density in pools, two mesohabitat-scale attributes. Relationships between environmental variability and movement depended on both the spatiotemporal scale of consideration and the ecology of the species. Future studies that integrate across scales, taxa, and life-histories are likely to provide greater insight into movement ecology than will traditional, single-season, single-species approaches. ?? 2006 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Oecologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00442-006-0598-6","issn":"00298549","usgsCitation":"Roberts, J., and Angermeier, P., 2007, Spatiotemporal variability of stream habitat and movement of three species of fish: Oecologia, v. 151, no. 3, p. 417-430, https://doi.org/10.1007/s00442-006-0598-6.","startPage":"417","endPage":"430","numberOfPages":"14","costCenters":[],"links":[{"id":213409,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00442-006-0598-6"},{"id":241033,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"151","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-11-15","publicationStatus":"PW","scienceBaseUri":"505b94d1e4b08c986b31ac68","contributors":{"authors":[{"text":"Roberts, J.H.","contributorId":84483,"corporation":false,"usgs":true,"family":"Roberts","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":438444,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Angermeier, P. L. 0000-0003-2864-170X","orcid":"https://orcid.org/0000-0003-2864-170X","contributorId":6410,"corporation":false,"usgs":true,"family":"Angermeier","given":"P. L.","affiliations":[],"preferred":false,"id":438443,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030133,"text":"70030133 - 2007 - Pressure calibrants in the hydrothermal diamond-anvil cell","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030133","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2020,"text":"International Geology Review","active":true,"publicationSubtype":{"id":10}},"title":"Pressure calibrants in the hydrothermal diamond-anvil cell","docAbstract":"Based on the equation of state of water (EOSW), experimental pressure in the hydrothermal diamond-anvil cell (HDAC) using pure water or dilute aqueous solutions as a pressure medium can be accurately determined at each measured temperature. Consequently, meaningful interpretations can be obtained for observations in the HDAC, which has been widely accepted as a versatile, modern apparatus for hydrothermal experiments. However, this is not true when other pressure media were used because there is no reliable way to determine experimental pressure other than the use of in situ pressure sensors. Most of the available pressure sensors are difficult to apply because they either require expensive facilities to perform the measurements or are unable to provide the accuracy needed for the interpretation of hydrothermal experiments. The only exception is to use the interferometric method to detect the ??-?? quartz transition, although such applications are limited to temperatures above 573??C. In this study, three pressure calibrants were calibrated for applications at lower temperatures, and they were based on visual observation of the ferroelastic phase transitions in BaTiO3 (tetragonal/cubic), Pb3(PO4)2 (monoclinic/trigonal), and PbTiO3 (tetragonal/cubic). For the phase transitions in BaTiO3 and Pb3(PO4)2, the temperature at which twinning disappears during heating was taken as the transition temperature (Ttr); the phase transition pressures (Ptr) can be calculated, respectively, from Ptr (MPa; ??3%) = 0.17 - 21.25 [(Ttr) - 115.3], and Ptr (MPa; ??2%) = 1.00 - 10.62 [(Ttr) - 180.2], where Ttr is in ??C. For the phase transition in PbTiO3, the temperature at which the movement of phase front begins (or ends) on heating (or cooling) was taken as the transition temperature (Ttr,h or Ttr,c), and the phase transition pressures on heating (Ptr,h) and cooling (Ptr,c) can be calculated from Ptr,h (MPa; ??4%) = 7021.7 - 14.235 (Ttr,h), and Ptr,c (MPa; ??4%) = 6831.3 - 14.001 (Ttr,c). Phase transitions for these three pressure calibrants are easy to detect visually, and their P-T phase boundaries have negative slopes and intersect isochors of most of the geologic fluids at high angles and, therefore, are easy to apply. Copyright ?? 2007 by V. H. Winston & Son, Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Geology Review","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2747/0020-6814.49.4.289","issn":"00206814","usgsCitation":"Chou, I., 2007, Pressure calibrants in the hydrothermal diamond-anvil cell: International Geology Review, v. 49, no. 4, p. 289-300, https://doi.org/10.2747/0020-6814.49.4.289.","startPage":"289","endPage":"300","numberOfPages":"12","costCenters":[],"links":[{"id":212702,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2747/0020-6814.49.4.289"},{"id":240228,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-08-06","publicationStatus":"PW","scienceBaseUri":"505a8b59e4b0c8380cd7e210","contributors":{"authors":[{"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":425842,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70030207,"text":"70030207 - 2007 - Daily foraging patterns of adult Double-crested Cormorants during the breeding season","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030207","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":"Daily foraging patterns of adult Double-crested Cormorants during the breeding season","docAbstract":"We recorded the daily presence of Double-crested Cormorants (Phalacrocorax auritus) at the nesting island on Oneida Lake, New York, by monitoring the activities of 15 radio-tagged adults from July through September, 2000, using an automated data-logging receiver. A total of 24,464 acceptable detections was obtained for adult cormorants actively attempting to nest on the lake. Tagged cormorants had a bimodal dally activity pattern during the first month, with the fewest birds detected on the island at 09.00 h and 15.00 h Eastern daylight time. The pattern of activity appeared to change slightly in the second month of the study, representative of a post-breeding period for the colony, with a shift from a less synchronous pattern of departures to a greater focus on morning activity also centered around 09.30 h. These results correspond with daily observations of Great Cormorant (P. carbo) foraging activities reported for colonies in Africa and Poland. The data also support the possibility of nocturnal foraging activity, not previously reported for this species on their summer breeding grounds. No correlation was found between total number of daily detections and climatalogical factors or events.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/1524-4695(2007)30[189:DFPOAD]2.0.CO;2","issn":"15244695","usgsCitation":"Coleman, J., and Richmond, M.E., 2007, Daily foraging patterns of adult Double-crested Cormorants during the breeding season: Waterbirds, v. 30, no. 2, p. 189-198, https://doi.org/10.1675/1524-4695(2007)30[189:DFPOAD]2.0.CO;2.","startPage":"189","endPage":"198","numberOfPages":"10","costCenters":[],"links":[{"id":211853,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2007)30[189:DFPOAD]2.0.CO;2"},{"id":239224,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fd5be4b0c8380cd4e7c4","contributors":{"authors":[{"text":"Coleman, J.T.H.","contributorId":86156,"corporation":false,"usgs":true,"family":"Coleman","given":"J.T.H.","email":"","affiliations":[],"preferred":false,"id":426128,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richmond, M. E.","contributorId":22729,"corporation":false,"usgs":true,"family":"Richmond","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":426127,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031593,"text":"70031593 - 2007 - Measurement of atmospheric mercury species with manual sampling and analysis methods in a case study in Indiana","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031593","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Measurement of atmospheric mercury species with manual sampling and analysis methods in a case study in Indiana","docAbstract":"Ground-level concentrations of three atmospheric mercury species were measured using manual sampling and analysis to provide data for estimates of mercury dry deposition. Three monitoring stations were operated simultaneously during winter, spring, and summer 2004, adjacent to three mercury wet-deposition monitoring stations in northern, central, and southern Indiana. The monitoring locations differed in land-use setting and annual mercury-emissions level from nearby sources. A timer-controlled air-sampling system that contained a three-part sampling train was used to isolate reactive gaseous mercury, particulate-bound mercury, and elemental mercury. The sampling trains were exchanged every 6 days, and the mercury species were quantified in a laboratory. A quality-assurance study indicated the sampling trains could be held at least 120 h without a significant change in reactive gaseous or particulate-bound mercury concentrations. The manual sampling method was able to provide valid mercury concentrations in 90 to 95% of samples. Statistical differences in mercury concentrations were observed during the project. Concentrations of reactive gaseous and elemental mercury were higher in the daytime samples than in the nighttime samples. Concentrations of reactive gaseous mercury were higher in winter than in summer and were highest at the urban monitoring location. The results of this case study indicated manual sampling and analysis could be a reliable method for measurement of atmospheric mercury species and has the capability for supplying representative concentrations in an effective manner from a long-term deposition-monitoring network. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11270-007-9416-y","issn":"00496979","usgsCitation":"Risch, M., Prestbo, E., and Hawkins, L., 2007, Measurement of atmospheric mercury species with manual sampling and analysis methods in a case study in Indiana: Water, Air, & Soil Pollution, v. 184, no. 1-4, p. 285-297, https://doi.org/10.1007/s11270-007-9416-y.","startPage":"285","endPage":"297","numberOfPages":"13","costCenters":[],"links":[{"id":212542,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11270-007-9416-y"},{"id":240040,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"184","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2007-05-22","publicationStatus":"PW","scienceBaseUri":"505a52f3e4b0c8380cd6c79f","contributors":{"authors":[{"text":"Risch, M.R.","contributorId":55032,"corporation":false,"usgs":true,"family":"Risch","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":432249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prestbo, E.M.","contributorId":83739,"corporation":false,"usgs":true,"family":"Prestbo","given":"E.M.","affiliations":[],"preferred":false,"id":432251,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hawkins, L.","contributorId":80082,"corporation":false,"usgs":true,"family":"Hawkins","given":"L.","email":"","affiliations":[],"preferred":false,"id":432250,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031595,"text":"70031595 - 2007 - Coupled changes in sand grain size and sand transport driven by changes in the upstream supply of sand in the Colorado River: relative importance of changes in bed-sand grain size and bed-sand area","interactions":[],"lastModifiedDate":"2014-10-07T14:04:52","indexId":"70031595","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3368,"text":"Sedimentary Geology","active":true,"publicationSubtype":{"id":10}},"title":"Coupled changes in sand grain size and sand transport driven by changes in the upstream supply of sand in the Colorado River: relative importance of changes in bed-sand grain size and bed-sand area","docAbstract":"Sand transport in the Colorado River in Marble and Grand canyons was naturally limited by the upstream supply of sand. Prior to the 1963 closure of Glen Canyon Dam, the river exhibited the following four effects of sand supply limitation: (1) hysteresis in sediment concentration, (2) hysteresis in sediment grain size coupled to the hysteresis in sediment concentration, (3) production of inversely graded flood deposits, and (4) development or modification of a lag between the time of a flood peak and the time of either maximum or minimum (depending on reach geometry) bed elevation. Construction and operation of the dam has enhanced the degree to which the first two of these four effects are evident, and has not affected the degree to which the last two effects of sand supply limitation are evident in the Colorado River in Marble and Grand canyons. The first three of the effects involve coupled changes in suspended-sand concentration and grain size that are controlled by changes in the upstream supply of sand. During tributary floods, sand on the bed of the Colorado River fines; this causes the suspended sand to fine and the suspended-sand concentration to increase, even when the discharge of water remains constant. Subsequently, the bed is winnowed of finer sand, the suspended sand coarsens, and the suspended-sand concentration decreases independently of discharge. Also associated with these changes in sand supply are changes in the fraction of the bed that is covered by sand. Thus, suspended-sand concentration in the Colorado River is likely regulated by both changes in the bed-sand grain size and changes in the bed-sand area. A physically based flow and suspended-sediment transport model is developed, tested, and applied to data from the Colorado River to evaluate the relative importance of changes in the bed-sand grain size and changes in the bed-sand area in regulating suspended-sand concentration. Although the model was developed using approximations for steady, uniform flow, and other simplifications that are not met in the Colorado River, the results nevertheless support the idea that changes in bed-sand grain size are much more important than changes in bed-sand area in regulating the concentration of suspended sand.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sedimentary Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.sedgeo.2007.03.016","issn":"00370738","usgsCitation":"Topping, D., Rubin, D.M., and Melis, T., 2007, Coupled changes in sand grain size and sand transport driven by changes in the upstream supply of sand in the Colorado River: relative importance of changes in bed-sand grain size and bed-sand area: Sedimentary Geology, v. 202, no. 3, p. 538-561, https://doi.org/10.1016/j.sedgeo.2007.03.016.","productDescription":"24 p.","startPage":"538","endPage":"561","numberOfPages":"24","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":212572,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.sedgeo.2007.03.016"},{"id":240075,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Colorado River","volume":"202","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc88e4b0c8380cd4e2d0","contributors":{"authors":[{"text":"Topping, D.J. 0000-0002-2104-4577","orcid":"https://orcid.org/0000-0002-2104-4577","contributorId":53927,"corporation":false,"usgs":true,"family":"Topping","given":"D.J.","affiliations":[],"preferred":false,"id":432256,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rubin, D. M.","contributorId":103689,"corporation":false,"usgs":true,"family":"Rubin","given":"D.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":432258,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Melis, T.S.","contributorId":85621,"corporation":false,"usgs":true,"family":"Melis","given":"T.S.","email":"","affiliations":[],"preferred":false,"id":432257,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033246,"text":"70033246 - 2007 - Landscape controls on mercury in streamwater at Acadia National Park, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:38","indexId":"70033246","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"Landscape controls on mercury in streamwater at Acadia National Park, USA","docAbstract":"Fall and spring streamwater samples were analyzed for total mercury (Hg) and major ions from 47 locations on Mount Desert Island in Maine. Samples were collected in zones that were burned in a major wildfire in 1947 and in zones that were not burned. We hypothesized that Hg concentrations in streamwater would be higher from unburned sites than burned watersheds, because fire would volatilize stored Hg. The Hg concentrations, based on burn history, were not statistically distinct. However, significant statistical associations were noted between Hg and the amount of wetlands in the drainage systems and with streamwater dissolved organic carbon (DOC). An unexpected result was that wetlands mobilized more Hg by generating more DOC in total, but upland DOC was more efficient at transporting Hg because it transports more Hg per unit DOC. Mercury concentrations were higher in samples collected at lower elevations. Mercury was positively correlated with relative discharge, although this effect was not distinguished from the DOC association. In this research, sample site elevation and the presence of upstream wetlands and their associated DOC affected Hg concentrations more strongly than burn history. ?? Springer Science + Business Media B.V. 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-006-9334-2","issn":"01676369","usgsCitation":"Peckenham, J., Kahl, J.S., Nelson, S., Johnson, K., and Haines, T., 2007, Landscape controls on mercury in streamwater at Acadia National Park, USA: Environmental Monitoring and Assessment, v. 126, no. 1-3, p. 97-104, https://doi.org/10.1007/s10661-006-9334-2.","startPage":"97","endPage":"104","numberOfPages":"8","costCenters":[],"links":[{"id":213501,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-006-9334-2"},{"id":241130,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"126","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2007-02-02","publicationStatus":"PW","scienceBaseUri":"505a4407e4b0c8380cd667bc","contributors":{"authors":[{"text":"Peckenham, J.M.","contributorId":98953,"corporation":false,"usgs":true,"family":"Peckenham","given":"J.M.","affiliations":[],"preferred":false,"id":440001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kahl, J. S.","contributorId":77885,"corporation":false,"usgs":false,"family":"Kahl","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":439999,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, S.J.","contributorId":45901,"corporation":false,"usgs":true,"family":"Nelson","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":439998,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, K.B.","contributorId":31208,"corporation":false,"usgs":true,"family":"Johnson","given":"K.B.","email":"","affiliations":[],"preferred":false,"id":439997,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Haines, T.A.","contributorId":83062,"corporation":false,"usgs":true,"family":"Haines","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":440000,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033219,"text":"70033219 - 2007 - Impacts of waste from concentrated animal feeding operations on water quality","interactions":[],"lastModifiedDate":"2018-10-26T07:57:46","indexId":"70033219","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1542,"text":"Environmental Health Perspectives","active":true,"publicationSubtype":{"id":10}},"title":"Impacts of waste from concentrated animal feeding operations on water quality","docAbstract":"<p>Waste from agricultural livestock operations has been a long-standing concern with respect to contamination of water resources, particularly in terms of nutrient pollution. However, the recent growth of concentrated animal feeding operations (CAFOs) presents a greater risk to water quality because of both the increased volume of waste and to contaminants that may be present (e.g., antibiotics and other veterinary drugs) that may have both environmental and public health importance. Based on available data, generally accepted livestock waste management practices do not adequately or effectively protect water resources from contamination with excessive nutrients, microbial pathogens, and pharmaceuticals present in the waste. Impacts on surface water sources and wildlife have been documented in many agricultural areas in the United States. Potential impacts on human and environmental health from long-term inadvertent exposure to water contaminated with pharmaceuticals and other compounds are a growing public concern. This workgroup, which is part of the Conference on Environmental Health Impacts of Concentrated Animal Feeding Operations: Anticipating Hazards-Searching for Solutions, identified needs for rigorous ecosystem monitoring in the vicinity of CAFOs and for improved characterization of major toxicants affecting the environment and human health. Last, there is a need to promote and enforce best practices to minimize inputs of nutrients and toxicants from CAFOs into freshwater and marine ecosystems.</p>","language":"English","publisher":"National Institute of Environmental Health Sciences","doi":"10.1289/ehp.8839","issn":"00916765","usgsCitation":"Burkholder, J., Libra, B., Weyer, P., Heathcote, S., Kolpin, D., Thorne, P., and Wichman, M., 2007, Impacts of waste from concentrated animal feeding operations on water quality: Environmental Health Perspectives, v. 115, no. 2, p. 308-312, https://doi.org/10.1289/ehp.8839.","productDescription":"5 p.","startPage":"308","endPage":"312","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":487774,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1289/ehp.8839","text":"Publisher Index Page"},{"id":240724,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3901e4b0c8380cd61781","contributors":{"authors":[{"text":"Burkholder, J.","contributorId":7091,"corporation":false,"usgs":true,"family":"Burkholder","given":"J.","email":"","affiliations":[],"preferred":false,"id":439880,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Libra, B.","contributorId":73016,"corporation":false,"usgs":true,"family":"Libra","given":"B.","email":"","affiliations":[],"preferred":false,"id":439885,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Weyer, P.","contributorId":76947,"corporation":false,"usgs":true,"family":"Weyer","given":"P.","email":"","affiliations":[],"preferred":false,"id":439886,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heathcote, S.","contributorId":20163,"corporation":false,"usgs":true,"family":"Heathcote","given":"S.","email":"","affiliations":[],"preferred":false,"id":439882,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kolpin, D.","contributorId":18128,"corporation":false,"usgs":true,"family":"Kolpin","given":"D.","email":"","affiliations":[],"preferred":false,"id":439881,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thorne, P.S.","contributorId":31986,"corporation":false,"usgs":true,"family":"Thorne","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":439883,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wichman, M.","contributorId":49983,"corporation":false,"usgs":true,"family":"Wichman","given":"M.","affiliations":[],"preferred":false,"id":439884,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70031596,"text":"70031596 - 2007 - Assessing the likely value of gravity and drawdown measurements to constrain estimates of hydraulic conductivity and specific yield during unconfined aquifer testing","interactions":[],"lastModifiedDate":"2018-04-03T17:22:22","indexId":"70031596","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Assessing the likely value of gravity and drawdown measurements to constrain estimates of hydraulic conductivity and specific yield during unconfined aquifer testing","docAbstract":"<p><span>Pumping of an unconfined aquifer can cause local desaturation detectable with high‐resolution gravimetry. A previous study showed that signal‐to‐noise ratios could be predicted for gravity measurements based on a hydrologic model. We show that although changes should be detectable with gravimeters, estimations of hydraulic conductivity and specific yield based on gravity data alone are likely to be unacceptably inaccurate and imprecise. In contrast, a transect of low‐quality drawdown data alone resulted in accurate estimates of hydraulic conductivity and inaccurate and imprecise estimates of specific yield. Combined use of drawdown and gravity data, or use of high‐quality drawdown data alone, resulted in unbiased and precise estimates of both parameters. This study is an example of the value of a staged assessment regarding the likely significance of a new measurement method or monitoring scenario before collecting field data.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005678","usgsCitation":"Blainey, J.B., Ferré, T., and Cordova, J., 2007, Assessing the likely value of gravity and drawdown measurements to constrain estimates of hydraulic conductivity and specific yield during unconfined aquifer testing: Water Resources Research, v. 43, no. 12, Article W12408; 9 p., https://doi.org/10.1029/2006WR005678.","productDescription":"Article W12408; 9 p.","costCenters":[],"links":[{"id":240111,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-12-20","publicationStatus":"PW","scienceBaseUri":"5059edece4b0c8380cd49aea","contributors":{"authors":[{"text":"Blainey, Joan B.","contributorId":54284,"corporation":false,"usgs":true,"family":"Blainey","given":"Joan","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":432261,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferré, Ty P.A.","contributorId":35647,"corporation":false,"usgs":false,"family":"Ferré","given":"Ty P.A.","affiliations":[],"preferred":false,"id":432260,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cordova, Jeffrey T. jcordova@usgs.gov","contributorId":1845,"corporation":false,"usgs":true,"family":"Cordova","given":"Jeffrey T.","email":"jcordova@usgs.gov","affiliations":[{"id":472,"text":"New Mexico Water Science Center","active":true,"usgs":true}],"preferred":false,"id":432259,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033218,"text":"70033218 - 2007 - Spawning distribution of sockeye salmon in a glacially influenced watershed: The importance of glacial habitats","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033218","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":"Spawning distribution of sockeye salmon in a glacially influenced watershed: The importance of glacial habitats","docAbstract":"The spawning distribution of sockeye salmon Oncorhynchus nerka was compared between clear and glacially turbid habitats in Lake Clark, Alaska, with the use of radiotelemetry. Tracking of 241 adult sockeye salmon to 27 spawning locations revealed both essential habitats and the relationship between spawn timing and seasonal turbidity cycles. Sixty-six percent of radio-tagged sockeye salmon spawned in turbid waters (???5 nephelometric turbidity units) where visual observation was difficult. Spawning in turbid habitats coincided with seasonal temperature declines and associated declines in turbidity and suspended sediment concentration. Because spawn timing is heritable and influenced by temperature, the observed behavior suggests an adaptive response to glacier-fed habitats, as it would reduce embryonic exposure to the adverse effects of fine sediments. ?? 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/T05-321.1","issn":"00028487","usgsCitation":"Young, D.B., and Woody, C., 2007, Spawning distribution of sockeye salmon in a glacially influenced watershed: The importance of glacial habitats: Transactions of the American Fisheries Society, v. 136, no. 2, p. 452-459, https://doi.org/10.1577/T05-321.1.","startPage":"452","endPage":"459","numberOfPages":"8","costCenters":[],"links":[{"id":240723,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213130,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T05-321.1"}],"volume":"136","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"505b94d4e4b08c986b31ac73","contributors":{"authors":[{"text":"Young, Daniel","contributorId":58468,"corporation":false,"usgs":false,"family":"Young","given":"Daniel","affiliations":[{"id":35763,"text":"National Park Service, Lake Clark National Park and Preserve, Port Alsworth, AK","active":true,"usgs":false}],"preferred":false,"id":439878,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woody, C.A.","contributorId":99211,"corporation":false,"usgs":true,"family":"Woody","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":439879,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70033015,"text":"70033015 - 2007 - Persistence of pharmaceuticals and other organic compounds in chlorinated drinking water as a function of time","interactions":[],"lastModifiedDate":"2018-10-17T08:38:40","indexId":"70033015","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Persistence of pharmaceuticals and other organic compounds in chlorinated drinking water as a function of time","docAbstract":"<p>Ninety eight pharmaceuticals and other organic compounds (POOCs) that were amended to samples of chlorinated drinking-water were extracted and analyzed 1, 3, 6, 8, and 10 days after amendment to determine whether the total chlorine residual reacted with the amended POOCs in drinking water in a time frame similar to the residence time of drinking water in a water distribution system.</p><p>Results indicated that if all 98 were present in the finished drinking water from a drinking-water treatment plant using free chlorine at 1.2&nbsp;mg/L as the distribution system disinfectant residual, 52 POOCs would be present in the drinking water after 10&nbsp;days at approximately the same concentration as in the newly finished drinking water. Concentrations of 16 POOCs would be reduced by 32% to 92%, and 22 POOCs would react completely with residual chlorine within 24&nbsp;h. Thus, the presence of free chlorine residual is an effective means for transforming some POOCs during distribution.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2006.11.003","issn":"00489697","usgsCitation":"Gibs, J., Stackelberg, P.E., Furlong, E.T., Meyer, M.T., Zaugg, S.D., and Lippincott, R., 2007, Persistence of pharmaceuticals and other organic compounds in chlorinated drinking water as a function of time: Science of the Total Environment, v. 373, no. 1, p. 240-249, https://doi.org/10.1016/j.scitotenv.2006.11.003.","productDescription":"10 p.","startPage":"240","endPage":"249","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240744,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213148,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2006.11.003"}],"volume":"373","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a76eee4b0c8380cd7839d","contributors":{"authors":[{"text":"Gibs, Jacob jgibs@usgs.gov","contributorId":1729,"corporation":false,"usgs":true,"family":"Gibs","given":"Jacob","email":"jgibs@usgs.gov","affiliations":[],"preferred":true,"id":438981,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stackelberg, Paul E. 0000-0002-1818-355X pestack@usgs.gov","orcid":"https://orcid.org/0000-0002-1818-355X","contributorId":1069,"corporation":false,"usgs":true,"family":"Stackelberg","given":"Paul","email":"pestack@usgs.gov","middleInitial":"E.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":438978,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Furlong, Edward T. 0000-0002-7305-4603 efurlong@usgs.gov","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":740,"corporation":false,"usgs":true,"family":"Furlong","given":"Edward","email":"efurlong@usgs.gov","middleInitial":"T.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":438983,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meyer, Michael T. 0000-0001-6006-7985 mmeyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-7985","contributorId":866,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael","email":"mmeyer@usgs.gov","middleInitial":"T.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":438982,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zaugg, Steven D. sdzaugg@usgs.gov","contributorId":768,"corporation":false,"usgs":true,"family":"Zaugg","given":"Steven","email":"sdzaugg@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":438980,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lippincott, R.L.","contributorId":73817,"corporation":false,"usgs":true,"family":"Lippincott","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":438979,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031601,"text":"70031601 - 2007 - Warming may create substantial water supply shortages in the Colorado River basin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:13","indexId":"70031601","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":"Warming may create substantial water supply shortages in the Colorado River basin","docAbstract":"The high demand for water, the recent multiyear drought (1999-2007), and projections of global warming have raised questions about the long-term sustainability of water supply in the southwestern United States. In this study, the potential effects of specific levels of atmospheric warming on water-year streamflow in the Colorado River basin are evaluated using a water-balance model, and the results are analyzed within the context of a multi-century tree-ring reconstruction (1490-1998) of streamflow for the basin. The results indicate that if future warming occurs in the basin and is not accompanied by increased precipitation, then the basin is likely to experience periods of water supply shortages more severe than those inferred from the longterm historical tree-ring reconstruction. Furthermore, the modeling results suggest that future warming would increase the likelihood of failure to meet the water allocation requirements of the Colorado River Compact.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL031764","issn":"00948276","usgsCitation":"McCabe, G., and Wolock, D., 2007, Warming may create substantial water supply shortages in the Colorado River basin: Geophysical Research Letters, v. 34, no. 22, https://doi.org/10.1029/2007GL031764.","costCenters":[],"links":[{"id":477230,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl031764","text":"Publisher Index Page"},{"id":212183,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL031764"},{"id":239633,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"22","noUsgsAuthors":false,"publicationDate":"2007-11-27","publicationStatus":"PW","scienceBaseUri":"505bc3c9e4b08c986b32b3a4","contributors":{"authors":[{"text":"McCabe, G.J. 0000-0002-9258-2997","orcid":"https://orcid.org/0000-0002-9258-2997","contributorId":12961,"corporation":false,"usgs":true,"family":"McCabe","given":"G.J.","affiliations":[],"preferred":false,"id":432274,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolock, D.M. 0000-0002-6209-938X","orcid":"https://orcid.org/0000-0002-6209-938X","contributorId":36601,"corporation":false,"usgs":true,"family":"Wolock","given":"D.M.","affiliations":[],"preferred":false,"id":432275,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030183,"text":"70030183 - 2007 - A classification of U.S. estuaries based on physical and hydrologic attributes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030183","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"A classification of U.S. estuaries based on physical and hydrologic attributes","docAbstract":"A classification of U.S. estuaries is presented based on estuarine characteristics that have been identified as important for quantifying stressor-response relationships in coastal systems. Estuaries within a class have similar physical and hydrologic characteristics and would be expected to demonstrate similar biological responses to stressor loads from the adjacent watersheds. Nine classes of estuaries were identified by applying cluster analysis to a database for 138 U.S. estuarine drainage areas. The database included physical measures of estuarine areas, depth and volume, as well as hydrologic parameters (i.e., tide height, tidal prism volume, freshwater inflow rates, salinity, and temperature). The ability of an estuary to dilute or flush pollutants can be estimated using physical and hydrologic properties such as volume, bathymetry, freshwater inflow and tidal exchange rates which influence residence time and affect pollutant loading rates. Thus, physical and hydrologic characteristics can be used to estimate the susceptibility of estuaries to pollutant effects. This classification of estuaries can be used by natural resource managers to describe and inventory coastal systems, understand stressor impacts, predict which systems are most sensitive to stressors, and manage and protect coastal resources. ?? Springer Science+Business Media B.V. 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-006-9372-9","issn":"01676369","usgsCitation":"Engle, V., Kurtz, J., Smith, L., Chancy, C., and Bourgeois, P., 2007, A classification of U.S. estuaries based on physical and hydrologic attributes: Environmental Monitoring and Assessment, v. 129, no. 1-3, p. 397-412, https://doi.org/10.1007/s10661-006-9372-9.","startPage":"397","endPage":"412","numberOfPages":"16","costCenters":[],"links":[{"id":211995,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-006-9372-9"},{"id":239392,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"129","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2007-02-03","publicationStatus":"PW","scienceBaseUri":"5059e342e4b0c8380cd45ef6","contributors":{"authors":[{"text":"Engle, V.D.","contributorId":15562,"corporation":false,"usgs":true,"family":"Engle","given":"V.D.","email":"","affiliations":[],"preferred":false,"id":426051,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kurtz, J.C.","contributorId":63616,"corporation":false,"usgs":true,"family":"Kurtz","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":426052,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, L.M.","contributorId":82650,"corporation":false,"usgs":true,"family":"Smith","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":426054,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chancy, C.","contributorId":72202,"corporation":false,"usgs":true,"family":"Chancy","given":"C.","email":"","affiliations":[],"preferred":false,"id":426053,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bourgeois, P.","contributorId":94498,"corporation":false,"usgs":true,"family":"Bourgeois","given":"P.","affiliations":[],"preferred":false,"id":426055,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031608,"text":"70031608 - 2007 - Crossing disciplines and scales to understand the critical zone","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031608","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1490,"text":"Elements","active":true,"publicationSubtype":{"id":10}},"title":"Crossing disciplines and scales to understand the critical zone","docAbstract":"The Critical Zone (CZ) is the system of coupled chemical, biological, physical, and geological processes operating together to support life at the Earth's surface. While our understanding of this zone has increased over the last hundred years, further advance requires scientists to cross disciplines and scales to integrate understanding of processes in the CZ, ranging in scale from the mineral-water interface to the globe. Despite the extreme heterogeneities manifest in the CZ, patterns are observed at all scales. Explanations require the use of new computational and analytical tools, inventive interdisciplinary approaches, and growing networks of sites and people.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Elements","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gselements.3.5.307","issn":"18115209","usgsCitation":"Brantley, S., Goldhaber, M., and Vala, R.K., 2007, Crossing disciplines and scales to understand the critical zone: Elements, v. 3, no. 5, p. 307-314, https://doi.org/10.2113/gselements.3.5.307.","startPage":"307","endPage":"314","numberOfPages":"8","costCenters":[],"links":[{"id":212245,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gselements.3.5.307"},{"id":239704,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fcc7e4b0c8380cd4e425","contributors":{"authors":[{"text":"Brantley, S.L.","contributorId":71676,"corporation":false,"usgs":true,"family":"Brantley","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":432311,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goldhaber, M. B. 0000-0002-1785-4243","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":103280,"corporation":false,"usgs":true,"family":"Goldhaber","given":"M. B.","affiliations":[],"preferred":false,"id":432312,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vala, Ragnarsdottir K.","contributorId":31980,"corporation":false,"usgs":true,"family":"Vala","given":"Ragnarsdottir","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":432310,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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