We report strontium isotopic results for the late Miocene Hualapai Limestone of the Lake Mead area (Arizona-Nevada) and the latest Miocene to early Pliocene Bouse Formation and related units of the lower Colorado River trough (Arizona-California-Nevada), together with parallel oxygen and carbon isotopic analyses of Bouse samples, to constrain the lake-overflow model for integration of the Colorado River. Sr isotopic analyses on the basal 1–5 cm of marl, in particular along a transect over a range of altitude in the lowest-altitude basin that contains freshwater, brackish, and marine fossils, document the 87Sr/86Sr of first-arriving Bouse waters. Results reinforce the similarity between the 87Sr/86Sr of Bouse Formation carbonates and present-day Colorado River water, and the systematic distinction of these values from Neogene marine Sr. Basal Bouse samples show that 87Sr/86Sr decreased from 0.7111 to values in the range 0.7107–0.7109 during early basin filling. 87Sr/86Sr values from a recently identified marl in the Las Vegas area are within the range of Bouse Sr ratios. 87Sr/86Sr values from the Hualapai Limestone decrease upsection from 0.7195 to 0.7137, in the approach to a time soon after 6 Ma when Hualapai deposition ceased and the Colorado River became established through the Lake Mead area. Bouse Formation δ18O values range from –12.9‰ to +1.0‰ Vienna Pee Dee belemnite (VPDB), and δ13C between –6.5‰ and +3.4‰ VPDB. Negative δ18O values appear to require a continental origin for waters, and the trend to higher δ18O suggests evaporation in lake waters. Sr and stable isotopic results for sectioned barnacle shells and from bedding planes of the marine fish fossil Colpichthys regis demonstrate that these animals lived in saline freshwater, and that there is no evidence for incursions of marine water, either long-lived or brief in duration. Lack of correlation of Sr and O isotopic variations in the same samples also argue strongly against systematic replacement of Sr in Bouse carbonates after deposition. Our results reinforce the conclusion that the Bouse Formation was deposited in a descending series of basins connected by overflow of Colorado River water. The Hualapai Limestone records a separate and earlier lake that may have been progressively influenced by Colorado River water as the time of river integration approached.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/B30186.1","issn":"00167606","usgsCitation":"Roskowski, J.A., Patchett, P., Spencer, J., Pearthree, P., Dettman, D.L., Faulds, J.E., and Reynolds, A.C., 2010, A late Miocene-early Pliocene chain of lakes fed by the Colorado River: Evidence from Sr, C, and O isotopes of the Bouse Formation and related units between Grand Canyon and the Gulf of California: Geological Society of America Bulletin, v. 122, no. 9-10, p. 1625-1636, https://doi.org/10.1130/B30186.1.","productDescription":"12 p.","startPage":"1625","endPage":"1636","numberOfPages":"12","costCenters":[],"links":[{"id":243571,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","state":"Arizona, Baja California, California, Nevada, Sonora","otherGeospatial":"Colorado River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.75195312499999,\n 31.38177878211098\n ],\n [\n -113.99414062499999,\n 31.38177878211098\n ],\n [\n -113.99414062499999,\n 35.96911507577482\n ],\n [\n -115.75195312499999,\n 35.96911507577482\n ],\n [\n -115.75195312499999,\n 31.38177878211098\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"122","issue":"9-10","noUsgsAuthors":false,"publicationDate":"2010-05-10","publicationStatus":"PW","scienceBaseUri":"5059e434e4b0c8380cd464c4","contributors":{"authors":[{"text":"Roskowski, J. 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C.","contributorId":35110,"corporation":false,"usgs":true,"family":"Reynolds","given":"A.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":446784,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70034636,"text":"70034636 - 2010 - Fine scale daily movements and habitat use of East Pacific green turtles at a shallow coastal lagoon in Baja California Sur, Mexico","interactions":[],"lastModifiedDate":"2017-05-17T09:25:51","indexId":"70034636","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"Fine scale daily movements and habitat use of East Pacific green turtles at a shallow coastal lagoon in Baja California Sur, Mexico","docAbstract":"Green turtles spend most of their lives in coastal foraging areas where they face multiple anthropogenic impacts. Therefore, understanding their spatial use in this environment is a priority for conservation efforts. We studied the fine scale daily movements and habitat use of East Pacific green turtles (Chelonia mydas) at Laguna San Ignacio, a shallow coastal lagoon in Baja California Sur, Mexico where sea turtles are subject to high levels of gillnet bycatch and directed hunting. Six turtles ranging from 44.6 to 83.5 cm in straight carapace length were tracked for short deployments (1 to 6 d) with GPS-VHF telemetry. Turtles were active throughout diurnal, nocturnal, and crepuscular periods. Although they moved greater total distances during daytime, their speed of travel and net displacement remained consistent throughout 24-h periods. A positive selection for areas of seagrass and moderate water depth (5 to 10 m) was determined using Ivlev's electivity index, with neutral selection for shallow water (< 5 m) and avoidance of deep water (> 10 m). Turtles exhibited two distinct behavioral movement patterns: circular movements with high fidelity to the capture–release location and meandering movements with low fidelity to the capture–release location. Our results indicate that green turtles were active throughout the diel cycle while traveling large distances and traversing multiple habitats over short temporal scales.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.jembe.2010.06.017","issn":"00220981","usgsCitation":"Senko, J., Koch, V., Megill, W.M., Carthy, R.R., Templeton, R.P., and Nichols, W.J., 2010, Fine scale daily movements and habitat use of East Pacific green turtles at a shallow coastal lagoon in Baja California Sur, Mexico: Journal of Experimental Marine Biology and Ecology, v. 391, no. 1-2, p. 92-100, https://doi.org/10.1016/j.jembe.2010.06.017.","productDescription":"9 p.","startPage":"92","endPage":"100","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-022304","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":243572,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215749,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jembe.2010.06.017"}],"country":"Mexico","state":"Baja California Sur","otherGeospatial":"Laguna San Ignacio","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -113.05892944335936,\n 26.60756044926576\n ],\n [\n -113.05343627929688,\n 26.64009391980515\n ],\n [\n -113.15231323242186,\n 26.754807764968632\n ],\n [\n -113.12759399414062,\n 26.79465448763808\n ],\n [\n -113.16879272460938,\n 26.796493229509068\n ],\n [\n -113.17703247070312,\n 26.768295913354663\n ],\n [\n -113.19625854492188,\n 26.765230565697482\n ],\n [\n -113.22921752929686,\n 26.782395446979752\n ],\n [\n -113.23196411132812,\n 26.796493229509068\n ],\n [\n -113.19969177246094,\n 26.789138083223477\n ],\n [\n -113.19351196289062,\n 26.80997642583652\n ],\n [\n -113.13858032226562,\n 26.857767562796056\n ],\n [\n -113.12965393066406,\n 26.90676315228667\n ],\n [\n -113.15299987792969,\n 26.979604764019346\n ],\n [\n -113.170166015625,\n 26.994901638048926\n ],\n [\n -113.17497253417967,\n 26.987559398067376\n ],\n [\n -113.18527221679688,\n 26.969201701911345\n ],\n [\n -113.20243835449219,\n 26.920845451974085\n ],\n [\n -113.19694519042969,\n 26.893903866183123\n ],\n [\n -113.20381164550781,\n 26.85164162108547\n ],\n [\n -113.23951721191406,\n 26.83571262083463\n ],\n [\n -113.25187683105469,\n 26.84490270219663\n ],\n [\n -113.26766967773438,\n 26.821619714264695\n ],\n [\n -113.26972961425781,\n 26.75603402644174\n ],\n [\n -113.23745727539061,\n 26.73089302213736\n ],\n [\n -113.18115234375,\n 26.716787098616493\n ],\n [\n -113.15780639648438,\n 26.69593166188054\n ],\n [\n -113.13926696777344,\n 26.664641348582713\n ],\n [\n -113.11729431152344,\n 26.656664013239183\n ],\n [\n -113.08845520019531,\n 26.64316263704834\n ],\n [\n -113.08570861816406,\n 26.62720440710078\n ],\n [\n -113.05892944335936,\n 26.60756044926576\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"391","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1020e4b0c8380cd53b31","contributors":{"authors":[{"text":"Senko, Jesse","contributorId":9080,"corporation":false,"usgs":true,"family":"Senko","given":"Jesse","email":"","affiliations":[],"preferred":false,"id":446791,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Koch, Volker","contributorId":64475,"corporation":false,"usgs":false,"family":"Koch","given":"Volker","email":"","affiliations":[],"preferred":false,"id":446794,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Megill, William M.","contributorId":56062,"corporation":false,"usgs":false,"family":"Megill","given":"William","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":446793,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Carthy, Raymond R. 0000-0001-8978-5083 rayc@usgs.gov","orcid":"https://orcid.org/0000-0001-8978-5083","contributorId":3685,"corporation":false,"usgs":true,"family":"Carthy","given":"Raymond","email":"rayc@usgs.gov","middleInitial":"R.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":446796,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Templeton, R.obert P.","contributorId":44003,"corporation":false,"usgs":false,"family":"Templeton","given":"R.obert","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":446792,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Nichols, Wallace J.","contributorId":81106,"corporation":false,"usgs":false,"family":"Nichols","given":"Wallace","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":446795,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70034637,"text":"70034637 - 2010 - Saturn's icy satellites investigated by Cassini-VIMS. II. Results at the end of nominal mission","interactions":[],"lastModifiedDate":"2012-03-12T17:21:41","indexId":"70034637","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Saturn's icy satellites investigated by Cassini-VIMS. II. Results at the end of nominal mission","docAbstract":"We report the detailed analysis of the spectrophotometric properties of Saturn's icy satellites as derived by full-disk observations obtained by visual and infrared mapping spectrometer (VIMS) experiment aboard Cassini. In this paper, we have extended the coverage until the end of the Cassini's nominal mission (June 1st 2008), while a previous paper (Filacchione, G., and 28 colleagues [2007]. Icarus 186, 259-290, hereby referred to as Paper I) reported the preliminary results of this study. During the four years of nominal mission, VIMS has observed the entire population of Saturn's icy satellites allowing us to make a comparative analysis of the VIS-NIR spectral properties of the major satellites (Mimas, Enceladus, Tethys, Dione, Rhea, Hyperion, Iapetus) and irregular moons (Atlas, Prometheus, Pandora, Janus, Epimetheus, Telesto, Calypso, Phoebe). The results we discuss here are derived from the entire dataset available at June 2008 which consists of 1417 full-disk observations acquired from a variety of distances and inclinations from the equatorial plane, with different phase angles and hemispheric coverage. The most important spectrophotometric indicators (as defined in Paper I: I/F continua at 0.55 ??m, 1.822 ??m and 3.547 ??m, visible spectral slopes, water and carbon dioxide bands depths and positions) are calculated for each observation in order to investigate the disk-integrated composition of the satellites, the distribution of water ice respect to \"contaminants\" abundances and typical regolith grain properties. These quantities vary from the almost pure water ice surfaces of Enceladus and Calypso to the organic and carbon dioxide rich Hyperion, Iapetus and Phoebe. Janus visible colors are intermediate between these two classes having a slightly positive spectral slope. These results could help to decipher the origins and evolutionary history of the minor moons of the Saturn's system. We introduce a polar representation of the spectrophotometric parameters as function of the solar phase angle (along radial distance) and of the effective longitude interval illuminated by the Sun and covered by VIMS during the observation (in azimuth) to better investigate the spatial distribution of the spectrophotometric quantities across the regular satellites hemispheres. Finally, we report the observed spectral positions of the 4.26 ??m band of the carbon dioxide present in the surface material of three outermost moons Hyperion, Iapetus and Phoebe. ?? 2009 Elsevier Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Icarus","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.icarus.2009.11.006","issn":"00191035","usgsCitation":"Filacchione, G., Capaccioni, F., Clark, R.N., Cuzzi, J., Cruikshank, D.P., Coradini, A., Cerroni, P., Nicholson, P.D., McCord, T.B., Brown, R.H., Buratti, B.J., Tosi, F., Nelson, R., Jaumann, R., and Stephan, K., 2010, Saturn's icy satellites investigated by Cassini-VIMS. II. Results at the end of nominal mission: Icarus, v. 206, no. 2, p. 507-523, https://doi.org/10.1016/j.icarus.2009.11.006.","startPage":"507","endPage":"523","numberOfPages":"17","costCenters":[],"links":[{"id":215778,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.icarus.2009.11.006"},{"id":243603,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"206","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b86f8e4b08c986b31622b","contributors":{"authors":[{"text":"Filacchione, G.","contributorId":48740,"corporation":false,"usgs":true,"family":"Filacchione","given":"G.","affiliations":[],"preferred":false,"id":446804,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Capaccioni, F.","contributorId":90900,"corporation":false,"usgs":true,"family":"Capaccioni","given":"F.","email":"","affiliations":[],"preferred":false,"id":446811,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clark, R. N.","contributorId":6568,"corporation":false,"usgs":true,"family":"Clark","given":"R.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":446797,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cuzzi, J.N.","contributorId":53962,"corporation":false,"usgs":true,"family":"Cuzzi","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":446806,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cruikshank, D. P.","contributorId":51434,"corporation":false,"usgs":false,"family":"Cruikshank","given":"D.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":446805,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Coradini, A.","contributorId":34679,"corporation":false,"usgs":true,"family":"Coradini","given":"A.","affiliations":[],"preferred":false,"id":446802,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cerroni, P.","contributorId":7869,"corporation":false,"usgs":true,"family":"Cerroni","given":"P.","affiliations":[],"preferred":false,"id":446798,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Nicholson, P. D.","contributorId":54330,"corporation":false,"usgs":false,"family":"Nicholson","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":446807,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"McCord, T. B.","contributorId":69695,"corporation":false,"usgs":false,"family":"McCord","given":"T.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":446809,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Brown, R. H.","contributorId":19931,"corporation":false,"usgs":false,"family":"Brown","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":446801,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Buratti, B. J.","contributorId":69280,"corporation":false,"usgs":false,"family":"Buratti","given":"B.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":446808,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Tosi, F.","contributorId":9472,"corporation":false,"usgs":false,"family":"Tosi","given":"F.","email":"","affiliations":[{"id":34654,"text":"Istituto di Astrofisica e Planetologia Spaziali, INAF","active":true,"usgs":false}],"preferred":false,"id":446800,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Nelson, R.M.","contributorId":38316,"corporation":false,"usgs":true,"family":"Nelson","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":446803,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Jaumann, R.","contributorId":81232,"corporation":false,"usgs":false,"family":"Jaumann","given":"R.","email":"","affiliations":[],"preferred":false,"id":446810,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Stephan, K.","contributorId":8976,"corporation":false,"usgs":true,"family":"Stephan","given":"K.","email":"","affiliations":[],"preferred":false,"id":446799,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70034638,"text":"70034638 - 2010 - Occurrence of the Great Lake's most recent invader, Hemimysis anomala, in the diet of fishes in southeastern Lake Ontario","interactions":[],"lastModifiedDate":"2013-02-28T13:39:08","indexId":"70034638","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Occurrence of the Great Lake's most recent invader, Hemimysis anomala, in the diet of fishes in southeastern Lake Ontario","docAbstract":"The Ponto-Caspian mysid, Hemimysis anomala, was first observed in southeastern Lake Ontario in May 2006. During July and August 2007, gill nets were fished in 6 to 8 m of water at two locations of known Hemimysis colonization in southeastern Lake Ontario to determine if fish that consume macroinvertebrates were beginning to include this new invasive mysid in their diets. Of nine fish species captured in August, September, and October 2007, three species had consumed Hemimysis: alewife (Alosa pseudoharengus), rock bass (Ambloplites rupestris), and yellow perch (Perca flavescens); and six species had not: round goby Apollonia melanostoma, smallmouth bass Micropterus dolomieu, spottail shiner Notropis hudsonius, gizzard shad Dorosoma cepedianum, white perch Morone americana and log perch Percina caprodes. Diets of alewives from all samples were composed predominantly of Hemimysis (69.6% -100% frequency of occurrence, 46.0%–74.5% dry weight diet composition). Two of 6 rock bass stomachs sampled in August contained ≥ 98.9% Hemimysis (10 and 40 individuals each) and one of 61 yellow perch stomachs sampled in September contained 10.0% Hemimysis (6 individuals) and 90.0% fish. While Hemimysis were observed only sparsely in the diet of most nearshore fish, their predominance in alewife diets and their omnivorous feeding behavior indicated that they have the potential to alter energy flow in Great Lakes' foodwebs.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.jglr.2009.12.002","issn":"03801330","usgsCitation":"Lantry, B., Walsh, M.G., Johnson, J.H., and McKenna, J., 2010, Occurrence of the Great Lake's most recent invader, Hemimysis anomala, in the diet of fishes in southeastern Lake Ontario: Journal of Great Lakes Research, v. 36, no. 1, p. 179-183, https://doi.org/10.1016/j.jglr.2009.12.002.","productDescription":"5 p.","startPage":"179","endPage":"183","costCenters":[{"id":357,"text":"Lake Ontario Biological Station","active":false,"usgs":true}],"links":[{"id":215779,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2009.12.002"},{"id":243604,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Lake Ontario","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -80.1391,43.073 ], [ -80.1391,44.2705 ], [ -75.9829,44.2705 ], [ -75.9829,43.073 ], [ -80.1391,43.073 ] ] ] } } ] }","volume":"36","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6c39e4b0c8380cd74afe","contributors":{"authors":[{"text":"Lantry, B.F.","contributorId":19105,"corporation":false,"usgs":true,"family":"Lantry","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":446812,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walsh, M. G.","contributorId":72172,"corporation":false,"usgs":true,"family":"Walsh","given":"M.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":446814,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, J. H.","contributorId":54914,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":446813,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McKenna, J.E. Jr.","contributorId":106065,"corporation":false,"usgs":true,"family":"McKenna","given":"J.E.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":446815,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70034666,"text":"70034666 - 2010 - Do larval fishes exhibit diel drift patterns in a large, turbid river?","interactions":[],"lastModifiedDate":"2012-03-12T17:21:41","indexId":"70034666","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2166,"text":"Journal of Applied Ichthyology","active":true,"publicationSubtype":{"id":10}},"title":"Do larval fishes exhibit diel drift patterns in a large, turbid river?","docAbstract":"Previous research suggested larval fishes do not exhibit a diel drift cycle in turbid rivers (transparency <30 cm). We evaluated this hypothesis in the turbid, lower Missouri River, Missouri. We also reviewed diel patterns of larval drift over a range of transparencies in rivers worldwide. Larval fishes were collected from the Missouri River primary channel every 4 h per 24-h period during spring-summer 2002. Water transparency was measured during this period and summarized for previous years. Diel drift patterns were analyzed at the assemblage level and lower taxonomic levels for abundant groups. Day and night larval fish catch-per-unit-effort (CPUE) was compared for the entire May through August sampling period and spring (May - June) and summer (July - August) seasons separately. There were no significant differences between day and night CPUE at the assemblage level for the entire sampling period or for the spring and summer seasons. However, Hiodon alosoides, Carpiodes/Ictiobus spp. and Macrhybopsis spp. exhibited a diel cycle of abundance within the drift. This pattern was evident although mean Secchi depth (transparency) ranged from 4 to 25 cm during the study and was <30 cm from May through August over the previous nine years. Larval diel drift studies from 48 rivers excluding the Missouri River indicated the primary drift period for larval fishes was at night in 38 rivers and during the day for five, with the remaining rivers showing no pattern. Water transparency was reported for 10 rivers with six being <30 cm or 'low'. Two of these six turbid rivers exhibited significant diel drift patterns. The effect of water transparency on diel drift of larval fishes appears taxa-specific and patterns of abundant taxa could mask patterns of rare taxa when analyzed only at the assemblage level. ?? 2010 Blackwell Verlag, Berlin.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Ichthyology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1439-0426.2010.01481.x","issn":"01758659","usgsCitation":"Reeves, K., and Galat, D., 2010, Do larval fishes exhibit diel drift patterns in a large, turbid river?: Journal of Applied Ichthyology, v. 26, no. 4, p. 571-577, https://doi.org/10.1111/j.1439-0426.2010.01481.x.","startPage":"571","endPage":"577","numberOfPages":"7","costCenters":[],"links":[{"id":475796,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1439-0426.2010.01481.x","text":"Publisher Index Page"},{"id":215723,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1439-0426.2010.01481.x"},{"id":243545,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-03-04","publicationStatus":"PW","scienceBaseUri":"505a0362e4b0c8380cd5046f","contributors":{"authors":[{"text":"Reeves, K.S.","contributorId":40824,"corporation":false,"usgs":true,"family":"Reeves","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":446941,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Galat, D.L.","contributorId":54546,"corporation":false,"usgs":true,"family":"Galat","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":446942,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035207,"text":"70035207 - 2010 - Early viral replication and induced or constitutive immunity in rainbow trout families with differential resistance to Infectious hematopoietic necrosis virus (IHNV)","interactions":[],"lastModifiedDate":"2013-05-07T09:52:59","indexId":"70035207","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1653,"text":"Fish and Shellfish Immunology","active":true,"publicationSubtype":{"id":10}},"title":"Early viral replication and induced or constitutive immunity in rainbow trout families with differential resistance to Infectious hematopoietic necrosis virus (IHNV)","docAbstract":"The main objective of this study was to assess correlates of innate resistance in rainbow trout full-sibling families that differ in susceptibility to Infectious hematopoietic necrosis virus (IHNV). As part of a commercial breeding program, full-sibling families were challenged with IHNV by waterborne exposure at the 1 g size to determine susceptibility to IHNV. Progeny from select families (N = 7 families) that varied in susceptibility (ranging from 32 to 90% cumulative percent mortality (CPM)) were challenged again at the 10 g size by intra-peritoneal injection and overall mortality, early viral replication and immune responses were evaluated. Mortality challenges included 20–40 fish per family while viral replication and immune response studies included 6 fish per family at each time point (24, 48 and 72 h post-infection (hpi)). CPM at the 1 g size was significantly correlated with CPM at the 10 g size, indicating that inherent resistance was a stable trait irrespective of size. In the larger fish, viral load was measured by quantitative reverse-transcriptase PCR in the anterior kidney and was a significant predictor of family disease outcome at 48 hpi. Type I interferon (IFN) transcript levels were significantly correlated with an individual's viral load at 48 and 72 hpi, while type II IFN gene expression was significantly correlated with an individual's viral load at 24 and 48 hpi. Mean family type I but not type II IFN gene expression was weakly associated with susceptibility at 72 hpi. There was no association between mean family susceptibility and the constitutive expression of a range of innate immune genes (e.g. type I and II IFN pathway genes, cytokine and viral recognition receptor genes). The majority of survivors from the challenge had detectable serum neutralizing antibody titers but no trend was observed among families. This result suggests that even the most resistant families experienced sufficient levels of viral replication to trigger specific immunity. In summary, disease outcome for each family was determined very early in the infection process and resistance was associated with lower early viral replication.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fish and Shellfish Immunology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.fsi.2009.10.005","issn":"10504648","usgsCitation":"Purcell, M.K., LaPatra, S., Woodson, J., Kurath, G., and Winton, J., 2010, Early viral replication and induced or constitutive immunity in rainbow trout families with differential resistance to Infectious hematopoietic necrosis virus (IHNV): Fish and Shellfish Immunology, v. 28, no. 1, p. 98-105, https://doi.org/10.1016/j.fsi.2009.10.005.","productDescription":"8 p.","startPage":"98","endPage":"105","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":215302,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.fsi.2009.10.005"},{"id":243097,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0493e4b0c8380cd50a7d","contributors":{"authors":[{"text":"Purcell, M. K.","contributorId":78464,"corporation":false,"usgs":true,"family":"Purcell","given":"M.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":449726,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LaPatra, S. E.","contributorId":55371,"corporation":false,"usgs":false,"family":"LaPatra","given":"S. E.","affiliations":[],"preferred":false,"id":449724,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Woodson, J.C.","contributorId":58477,"corporation":false,"usgs":true,"family":"Woodson","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":449725,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kurath, Gael 0000-0003-3294-560X gkurath@usgs.gov","orcid":"https://orcid.org/0000-0003-3294-560X","contributorId":100522,"corporation":false,"usgs":true,"family":"Kurath","given":"Gael","email":"gkurath@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":449728,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Winton, J. R. 0000-0002-3505-5509","orcid":"https://orcid.org/0000-0002-3505-5509","contributorId":82441,"corporation":false,"usgs":true,"family":"Winton","given":"J. R.","affiliations":[],"preferred":false,"id":449727,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035236,"text":"70035236 - 2010 - Quantifying the behavioral response of spawning chum salmon to elevated discharges from Bonneville Dam, Columbia River, USA","interactions":[],"lastModifiedDate":"2016-12-28T17:57:07","indexId":"70035236","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Quantifying the behavioral response of spawning chum salmon to elevated discharges from Bonneville Dam, Columbia River, USA","docAbstract":"Chum salmon Oncorhynchus keta that spawn in main-stem habitats below Bonneville Dam on the Columbia River, USA, are periodically subjected to elevated discharges that may alter spawning behaviour. We investigated behavioural responses of spawning chum salmon to increased water velocities associated with experimental increases in tailwater elevation using acoustic telemetry and a dual-frequency identification sonar. Chum salmon primarily remained near their redds at base tailwater elevations (3.5 m above mean sea level), but displayed different movement and behavioural responses as elevations were increased to either 4.1 or 4.7m for 8-h periods. When velocities remained suitable (<0.8m s-1) during elevated-tailwater tests, female chum salmon remained near their redds but exhibited reduced digging activity as water velocities increased. However, when velocities exceeded 0.8m s-1, the females that remained on their redds exhibited increased swimming activity and digging virtually ceased. Female and male chum salmon that left their redds when velocities became unsuitable moved mean distances ranging from 32 to 58 m to occupy suitable velocities, but returned to their redds after tailwaters returned to base levels. Spawning events (i.e. egg deposition) were observed for five of nine pairs of chum salmon following tests indicating any disruptions to normal behaviour caused by elevated tailwaters were likely temporary. We believe a chum salmon's decision to either remain on, or leave, its redd during periods of unsuitably high water velocities reflects time invested in the redd and the associated energetic costs it is willing to incur. ?? 2009 John Wiley & Sons, Ltd.","language":"English","publisher":"Wiley","doi":"10.1002/rra.1248","issn":"15351459","usgsCitation":"Tiffan, K., Haskell, C.A., and Kock, T., 2010, Quantifying the behavioral response of spawning chum salmon to elevated discharges from Bonneville Dam, Columbia River, USA: River Research and Applications, v. 26, no. 2, p. 87-101, https://doi.org/10.1002/rra.1248.","productDescription":"15 p. ","startPage":"87","endPage":"101","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":243003,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215216,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1248"}],"volume":"26","issue":"2","noUsgsAuthors":false,"publicationDate":"2009-02-24","publicationStatus":"PW","scienceBaseUri":"505a91e3e4b0c8380cd80516","contributors":{"authors":[{"text":"Tiffan, K.F.","contributorId":19327,"corporation":false,"usgs":true,"family":"Tiffan","given":"K.F.","email":"","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":449848,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haskell, C. A.","contributorId":94082,"corporation":false,"usgs":true,"family":"Haskell","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":449850,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kock, T.J.","contributorId":39578,"corporation":false,"usgs":true,"family":"Kock","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":449849,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035237,"text":"70035237 - 2010 - Controls of suspended sediment concentration, nutrient content, and transport in a subtropical wetland","interactions":[],"lastModifiedDate":"2013-04-22T10:33:16","indexId":"70035237","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Controls of suspended sediment concentration, nutrient content, and transport in a subtropical wetland","docAbstract":"Redistribution of largely organic sediment from low elevation sloughs to higher elevation ridges is a leading hypothesis for the formation and maintenance of the native ridge and slough landscape pattern found in peat wetlands of the Florida Everglades. We tested this redistribution hypothesis by measuring the concentration and characteristics of suspended sediment and its associated nutrients in the flowpaths of adjacent ridge and slough plant communities. Over two wet seasons we found no sustained differences in suspended sediment mass concentrations, particle-associated P and N concentrations, or sizes of suspended particles between ridge and slough sites. Discharge of suspended sediment, particulate nutrients, and solutes were nearly double in the slough flowpath compared to the ridge flowpath due solely to deeper and faster water flow in sloughs. Spatial and temporal variations in suspended sediment were not related to water velocity, consistent with a hypothesis that the critical sheer stress causing entrainment is not commonly exceeded in the present-day managed Everglades. The uniformity in the concentrations and characteristics of suspended sediment at our research site suggests that sediment and particulate nutrient redistribution between ridges and sloughs does not occur, or rarely occurs, in the modern Everglades.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"http://www.springer.com","doi":"10.1007/s13157-009-0002-5","issn":"02775212","usgsCitation":"Noe, G., Harvey, J., Schaffranek, R., and Larsen, L., 2010, Controls of suspended sediment concentration, nutrient content, and transport in a subtropical wetland: Wetlands, v. 30, no. 1, p. 39-54, https://doi.org/10.1007/s13157-009-0002-5.","productDescription":"16 p.","startPage":"39","endPage":"54","costCenters":[],"links":[{"id":215246,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s13157-009-0002-5"},{"id":243036,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Everglades","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -81.5205,24.851 ], [ -81.5205,25.8915 ], [ -80.3887,25.8915 ], [ -80.3887,24.851 ], [ -81.5205,24.851 ] ] ] } } ] }","volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-09","publicationStatus":"PW","scienceBaseUri":"5059fbcce4b0c8380cd4df7f","contributors":{"authors":[{"text":"Noe, G.B.","contributorId":66464,"corporation":false,"usgs":true,"family":"Noe","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":449854,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, J. W. 0000-0002-2654-9873","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":39725,"corporation":false,"usgs":true,"family":"Harvey","given":"J. W.","affiliations":[],"preferred":false,"id":449851,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schaffranek, R.W.","contributorId":61468,"corporation":false,"usgs":true,"family":"Schaffranek","given":"R.W.","affiliations":[],"preferred":false,"id":449853,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Larsen, L. G.","contributorId":50741,"corporation":false,"usgs":true,"family":"Larsen","given":"L. G.","affiliations":[],"preferred":false,"id":449852,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035295,"text":"70035295 - 2010 - Predicting the retreat and migration of tidal forests along the northern Gulf of Mexico under sea-level rise","interactions":[],"lastModifiedDate":"2020-01-09T15:29:31","indexId":"70035295","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1687,"text":"Forest Ecology and Management","active":true,"publicationSubtype":{"id":10}},"title":"Predicting the retreat and migration of tidal forests along the northern Gulf of Mexico under sea-level rise","docAbstract":"Tidal freshwater forests in coastal regions of the southeastern United States are undergoing dieback and retreat from increasing tidal inundation and saltwater intrusion attributed to climate variability and sea-level rise. In many areas, tidal saltwater forests (mangroves) contrastingly are expanding landward in subtropical coastal reaches succeeding freshwater marsh and forest zones. Hydrological characteristics of these low-relief coastal forests in intertidal settings are dictated by the influence of tidal and freshwater forcing. In this paper, we describe the application of the Sea Level Over Proportional Elevation (SLOPE) model to predict coastal forest retreat and migration from projected sea-level rise based on a proxy relationship of saltmarsh/mangrove area and tidal range. The SLOPE model assumes that the sum area of saltmarsh/mangrove habitat along any given coastal reach is determined by the slope of the landform and vertical tide forcing. Model results indicated that saltmarsh and mangrove migration from sea-level rise will vary by county and watershed but greater in western Gulf States than in the eastern Gulf States where millions of hectares of coastal forest will be displaced over the next century with a near meter rise in relative sea level alone. Substantial losses of coastal forests will also occur in the eastern Gulf but mangrove forests in subtropical zones of Florida are expected to replace retreating freshwater forest and affect regional biodiversity. Accelerated global eustacy from climate change will compound the degree of predicted retreat and migration of coastal forests with expected implications for ecosystem management of State and Federal lands in the absence of adaptive coastal management.","language":"English","publisher":"Elsevier","doi":"10.1016/j.foreco.2009.10.023","issn":"03781127","usgsCitation":"Doyle, T., Krauss, K., Conner, W., and From, A., 2010, Predicting the retreat and migration of tidal forests along the northern Gulf of Mexico under sea-level rise: Forest Ecology and Management, v. 259, no. 4, p. 770-777, https://doi.org/10.1016/j.foreco.2009.10.023.","productDescription":"8 p.","startPage":"770","endPage":"777","numberOfPages":"8","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":242936,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Louisiana, Mississippi, Texas","otherGeospatial":"Gulf of Mexico","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.8154296875,\n 25.284437746983055\n ],\n [\n -83.232421875,\n 30.259067203213018\n ],\n [\n -84.814453125,\n 30.41078179084589\n ],\n [\n -88.681640625,\n 30.751277776257812\n ],\n [\n -91.1865234375,\n 30.107117887092357\n ],\n [\n -94.9658203125,\n 29.954934549656144\n ],\n [\n -98.1298828125,\n 27.761329874505233\n ],\n [\n -97.2509765625,\n 25.878994400196202\n ],\n [\n -80.8154296875,\n 25.284437746983055\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"259","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81d8e4b0c8380cd7b781","contributors":{"authors":[{"text":"Doyle, T.W. 0000-0001-5754-0671","orcid":"https://orcid.org/0000-0001-5754-0671","contributorId":16783,"corporation":false,"usgs":true,"family":"Doyle","given":"T.W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":450059,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krauss, K. W. 0000-0003-2195-0729","orcid":"https://orcid.org/0000-0003-2195-0729","contributorId":19517,"corporation":false,"usgs":true,"family":"Krauss","given":"K. W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":450060,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Conner, W.H.","contributorId":54165,"corporation":false,"usgs":true,"family":"Conner","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":450062,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"From, A.S. 0000-0002-6543-2627","orcid":"https://orcid.org/0000-0002-6543-2627","contributorId":34346,"corporation":false,"usgs":true,"family":"From","given":"A.S.","affiliations":[],"preferred":false,"id":450061,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035302,"text":"70035302 - 2010 - Environmental controls on drainage behavior of an ephemeral stream","interactions":[],"lastModifiedDate":"2018-04-02T15:24:40","indexId":"70035302","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3478,"text":"Stochastic Environmental Research and Risk Assessment","active":true,"publicationSubtype":{"id":10}},"title":"Environmental controls on drainage behavior of an ephemeral stream","docAbstract":"Streambed drainage was measured at the cessation of 26 ephemeral streamflow events in Rillito Creek, Tucson, Arizona from August 2000 to June 2002 using buried time domain reflectometry (TDR) probes. An unusual drainage response was identified, which was characterized by sharp drainage from saturation to near field capacity at each depth with an increased delay between depths. We simulated the drainage response using a variably saturated numerical flow model representing a two-layer system with a high permeability layer overlying a lower permeability layer. Both the observed data and the numerical simulation show a strong correlation between the drainage velocity and the temperature of the stream water. A linear combination of temperature and the no-flow period preceding flow explained about 90% of the measured variations in drainage velocity. Evaluation of this correlative relationship with the one-dimensional numerical flow model showed that the observed temperature fluctuations could not reproduce the magnitude of variation in the observed drainage velocity. Instead, the model results indicated that flow duration exerts the most control on drainage velocity, with the drainage velocity decreasing nonlinearly with increasing flow duration. These findings suggest flow duration is a primary control of water availability for plant uptake in near surface sediments of an ephemeral stream, an important finding for estimating the ecological risk of natural or engineered changes to streamflow patterns. Correlative analyses of soil moisture data, although easy and widely used, can result in erroneous conclusions of hydrologic cause—effect relationships, and demonstrating the need for joint physically-based numerical modeling and data synthesis for hypothesis testing to support quantitative risk analysis.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Stochastic Environmental Research and Risk Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"http://www.springer.com","doi":"10.1007/s00477-010-0398-8","issn":"14363240","usgsCitation":"Blasch, K., Ferre, T., and Vrugt, J., 2010, Environmental controls on drainage behavior of an ephemeral stream: Stochastic Environmental Research and Risk Assessment, v. 24, no. 7, p. 1077-1087, https://doi.org/10.1007/s00477-010-0398-8.","productDescription":"11 p.","startPage":"1077","endPage":"1087","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":243041,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215251,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00477-010-0398-8"}],"country":"United States","state":"Arizona","city":"Tucson","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111.0594,31.9917 ], [ -111.0594,32.3202 ], [ -110.7082,32.3202 ], [ -110.7082,31.9917 ], [ -111.0594,31.9917 ] ] ] } } ] }","volume":"24","issue":"7","noUsgsAuthors":false,"publicationDate":"2010-04-27","publicationStatus":"PW","scienceBaseUri":"505a09b5e4b0c8380cd5201f","contributors":{"authors":[{"text":"Blasch, K.W.","contributorId":29877,"corporation":false,"usgs":true,"family":"Blasch","given":"K.W.","affiliations":[],"preferred":false,"id":450088,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferre, T.P.A.","contributorId":196167,"corporation":false,"usgs":false,"family":"Ferre","given":"T.P.A.","email":"","affiliations":[],"preferred":false,"id":450089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vrugt, J.A.","contributorId":77378,"corporation":false,"usgs":true,"family":"Vrugt","given":"J.A.","affiliations":[],"preferred":false,"id":450090,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035324,"text":"70035324 - 2010 - Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA","interactions":[],"lastModifiedDate":"2018-10-09T11:17:39","indexId":"70035324","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3716,"text":"Water Research","onlineIssn":"1879-2448","printIssn":"0043-1354","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA","title":"Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA","docAbstract":"This study assessed the efficacy for removing Cryptosporidium parvum oocysts of poorly sorted, Fe- and Al-rich, subsurface sediments collected from 0.9 to 4.9 and 1.7–13.9 m below land surface at an operating riverbank filtration (RBF) site (Russian River, Sonoma County, CA). Both formaldehyde-killed oocysts and oocyst-sized (3 μm) microspheres were employed in sediment-packed flow-through and static columns. The degree of surface coverage of metal oxides on sediment grain surfaces correlated strongly with the degrees of oocyst and microsphere removals. In contrast, average grain size (D50) was not a good indicator of either microsphere or oocyst removal, suggesting that the primary mechanism of immobilization within these sediments is sorptive filtration rather than physical straining. A low specific UV absorbance (SUVA) for organic matter isolated from the Russian River, suggested that the modest concentration of the SUVA component (0.8 mg L−1) of the 2.2 mg L−1dissolved organic carbon (DOC) is relatively unreactive. Nevertheless, an amendment of 2.2 mg L−1 of isolated river DOC to column sediments resulted in up to a 35.7% decrease in sorption of oocysts and (or) oocyst-sized microspheres. Amendments (3.2 μM) of the anionic surfactant, sodium dodecyl benzene sulfonate (SDBS) also caused substantive decreases (up to 31.9 times) in colloid filtration. Although the grain-surface metal oxides were found to have a high colloid-removal capacity, our study suggested that any major changes within the watershed that would result in long-term alterations in either the quantity and (or) the character of the river's DOC could alter the effectiveness of pathogen removal during RBF operations.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.watres.2009.11.033","issn":"00431354","usgsCitation":"Metge, D., Harvey, R., Aiken, G., Anders, R., Lincoln, G., and Jasperse, J., 2010, Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA: Water Research, v. 44, no. 4, p. 1126-1137, https://doi.org/10.1016/j.watres.2009.11.033.","productDescription":"12 p.","startPage":"1126","endPage":"1137","ipdsId":"IP-014171","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":215100,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.watres.2009.11.033"},{"id":242874,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b61e4b0c8380cd6249e","contributors":{"authors":[{"text":"Metge, D.W.","contributorId":51477,"corporation":false,"usgs":true,"family":"Metge","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":450186,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, R.W. 0000-0002-2791-8503","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":11757,"corporation":false,"usgs":true,"family":"Harvey","given":"R.W.","affiliations":[],"preferred":false,"id":450184,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Aiken, G. R. 0000-0001-8454-0984","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":14452,"corporation":false,"usgs":true,"family":"Aiken","given":"G. R.","affiliations":[],"preferred":false,"id":450185,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anders, R.","contributorId":74174,"corporation":false,"usgs":true,"family":"Anders","given":"R.","email":"","affiliations":[],"preferred":false,"id":450188,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lincoln, G.","contributorId":106336,"corporation":false,"usgs":true,"family":"Lincoln","given":"G.","email":"","affiliations":[],"preferred":false,"id":450189,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jasperse, James","contributorId":64857,"corporation":false,"usgs":false,"family":"Jasperse","given":"James","email":"","affiliations":[],"preferred":false,"id":450187,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70035359,"text":"70035359 - 2010 - Evaluating the spatiotemporal variations of water budget across China over 1951-2006 using IBIS model","interactions":[],"lastModifiedDate":"2013-05-14T10:49:54","indexId":"70035359","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Evaluating the spatiotemporal variations of water budget across China over 1951-2006 using IBIS model","docAbstract":"The Integrated Biosphere Simulator is used to evaluate the spatial and temporal patterns of the crucial hydrological variables [run-off and actual evapotranspiration (AET)] of the water balance across China for the period 1951–2006 including a precipitation analysis. Results suggest three major findings. First, simulated run-off captured 85% of the spatial variability and 80% of the temporal variability for 85 hydrological gauges across China. The mean relative errors were within 20% for 66% of the studied stations and within 30% for 86% of the stations. The Nash–Sutcliffe coefficients indicated that the quantity pattern of run-off was also captured acceptably except for some watersheds in southwestern and northwestern China. The possible reasons for underestimation of run-off in the Tibetan plateau include underestimation of precipitation and uncertainties in other meteorological data due to complex topography, and simplified representations of the soil depth attribute and snow processes in the model. Second, simulated AET matched reasonably with estimated values calculated as the residual of precipitation and run-off for watersheds controlled by the hydrological gauges. Finally, trend analysis based on the Mann–Kendall method indicated that significant increasing and decreasing patterns in precipitation appeared in the northwest part of China and the Yellow River region, respectively. Significant increasing and decreasing trends in AET were detected in the Southwest region and the Yangtze River region, respectively. In addition, the Southwest region, northern China (including the Heilongjiang, Liaohe, and Haihe Basins), and the Yellow River Basin showed significant decreasing trends in run-off, and the Zhemin hydrological region showed a significant increasing trend.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1002/hyp.7496","issn":"08856087","usgsCitation":"Zhu, Q., Jiang, H., Liu, J., Wei, X., Peng, C., Fang, X., Liu, S., Zhou, G., Yu, S., and Ju, W., 2010, Evaluating the spatiotemporal variations of water budget across China over 1951-2006 using IBIS model: Hydrological Processes, v. 24, no. 4, p. 429-445, https://doi.org/10.1002/hyp.7496.","productDescription":"17 p.","startPage":"429","endPage":"445","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":242875,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215101,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7496"}],"country":"China","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 73.5,18.2 ], [ 73.5,53.6 ], [ 134.8,53.6 ], [ 134.8,18.2 ], [ 73.5,18.2 ] ] ] } } ] }","volume":"24","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-11-10","publicationStatus":"PW","scienceBaseUri":"505a0c00e4b0c8380cd529bf","contributors":{"authors":[{"text":"Zhu, Q.","contributorId":93711,"corporation":false,"usgs":true,"family":"Zhu","given":"Q.","email":"","affiliations":[],"preferred":false,"id":450325,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jiang, H.","contributorId":83731,"corporation":false,"usgs":true,"family":"Jiang","given":"H.","affiliations":[],"preferred":false,"id":450323,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Liu, J.","contributorId":23672,"corporation":false,"usgs":false,"family":"Liu","given":"J.","affiliations":[],"preferred":false,"id":450318,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wei, X.","contributorId":50636,"corporation":false,"usgs":true,"family":"Wei","given":"X.","email":"","affiliations":[],"preferred":false,"id":450321,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peng, C.","contributorId":79314,"corporation":false,"usgs":true,"family":"Peng","given":"C.","email":"","affiliations":[],"preferred":false,"id":450322,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fang, X.","contributorId":32288,"corporation":false,"usgs":true,"family":"Fang","given":"X.","email":"","affiliations":[],"preferred":false,"id":450320,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Liu, S.","contributorId":93170,"corporation":false,"usgs":true,"family":"Liu","given":"S.","affiliations":[],"preferred":false,"id":450324,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Zhou, G.","contributorId":12604,"corporation":false,"usgs":true,"family":"Zhou","given":"G.","email":"","affiliations":[],"preferred":false,"id":450317,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Yu, S.","contributorId":25771,"corporation":false,"usgs":true,"family":"Yu","given":"S.","email":"","affiliations":[],"preferred":false,"id":450319,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Ju, W.","contributorId":10627,"corporation":false,"usgs":true,"family":"Ju","given":"W.","email":"","affiliations":[],"preferred":false,"id":450316,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70035391,"text":"70035391 - 2010 - Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035391","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds","docAbstract":"Riparian vegetation composition, structure and abundance are governed to a large degree by river flow regime and flow-mediated fluvial processes. Streamflow regime exerts selective pressures on riparian vegetation, resulting in adaptations (trait syndromes) to specific flow attributes. Widespread modification of flow regimes by humans has resulted in extensive alteration of riparian vegetation communities. Some of the negative effects of altered flow regimes on vegetation may be reversed by restoring components of the natural flow regime. 2. Models have been developed that quantitatively relate components of the flow regime to attributes of riparian vegetation at the individual, population and community levels. Predictive models range from simple statistical relationships, to more complex stochastic matrix population models and dynamic simulation models. Of the dozens of predictive models reviewed here, most treat one or a few species, have many simplifying assumptions such as stable channel form, and do not specify the time-scale of response. In many cases, these models are very effective in developing alternative streamflow management plans for specific river reaches or segments but are not directly transferable to other rivers or other regions. 3. A primary goal in riparian ecology is to develop general frameworks for prediction of vegetation response to changing environmental conditions. The development of riparian vegetation-flow response guilds offers a framework for transferring information from rivers where flow standards have been developed to maintain desirable vegetation attributes, to rivers with little or no existing information. 4. We propose to organise riparian plants into non-phylogenetic groupings of species with shared traits that are related to components of hydrologic regime: life history, reproductive strategy, morphology, adaptations to fluvial disturbance and adaptations to water availability. Plants from any river or region may be grouped into these guilds and related to hydrologic attributes of a specific class of river using probabilistic response curves. 5. Probabilistic models based on riparian response guilds enable prediction of the likelihood of change in each of the response guilds given projected changes in flow, and facilitate examination of trade-offs and risks associated with various flow management strategies. Riparian response guilds can be decomposed to the species level for individual projects or used to develop flow management guidelines for regional water management plans. ?? 2009 Published.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Freshwater Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2427.2009.02206.x","issn":"00465070","usgsCitation":"Merritt, D., Scott, M.L., Leroy, P.N., Auble, G., and Lytle, D., 2010, Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds: Freshwater Biology, v. 55, no. 1, p. 206-225, https://doi.org/10.1111/j.1365-2427.2009.02206.x.","startPage":"206","endPage":"225","numberOfPages":"20","costCenters":[],"links":[{"id":215103,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2009.02206.x"},{"id":242877,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-15","publicationStatus":"PW","scienceBaseUri":"505bb204e4b08c986b325554","contributors":{"authors":[{"text":"Merritt, D.M.","contributorId":11025,"corporation":false,"usgs":true,"family":"Merritt","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":450432,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, M. L.","contributorId":75090,"corporation":false,"usgs":true,"family":"Scott","given":"M.","middleInitial":"L.","affiliations":[],"preferred":false,"id":450434,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leroy, Poff N.","contributorId":108330,"corporation":false,"usgs":true,"family":"Leroy","given":"Poff","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":450436,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Auble, G.T.","contributorId":19505,"corporation":false,"usgs":true,"family":"Auble","given":"G.T.","email":"","affiliations":[],"preferred":false,"id":450433,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lytle, D.A.","contributorId":85422,"corporation":false,"usgs":true,"family":"Lytle","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":450435,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035425,"text":"70035425 - 2010 - Limited hydrologic response to Pleistocene climate change in deep vadose zones - Yucca Mountain, Nevada","interactions":[],"lastModifiedDate":"2013-07-31T17:21:40","indexId":"70035425","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Limited hydrologic response to Pleistocene climate change in deep vadose zones - Yucca Mountain, Nevada","docAbstract":"Understanding the movement of water through thick vadose zones, especially on time scales encompassing long-term climate change, is increasingly important as societies utilize semi-arid environments for both water resources and sites viewed as favorable for long-term disposal or storage of hazardous waste. Hydrologic responses to Pleistocene climate change within a deep vadose zone in the eastern Mojave Desert at Yucca Mountain, Nevada, were evaluated by uranium-series dating of finely layered hyalitic opal using secondary ion mass spectrometry. Opal is present within cm-thick secondary hydrogenic mineral crusts coating floors of lithophysal cavities in fractured volcanic rocks at depths of 200 to 300 m below land surface. Uranium concentrations in opal fluctuate systematically between 5 and 550 μg/g. Age-calibrated profiles of uranium concentration correlate with regional climate records over the last 300,000 years and produce time-series spectral peaks that have distinct periodicities of 100- and 41-ka, consistent with planetary orbital parameters. These results indicate that the chemical compositions of percolating solutions varied in response to near-surface, climate-driven processes. However, slow (micrometers per thousand years), relatively uniform growth rates of secondary opal and calcite deposition spanning several glacial–interglacial climate cycles imply that water fluxes in the deep vadose zone remained low and generally buffered from the large fluctuations in available surface moisture during different climates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2010.10.006","issn":"0012821X","usgsCitation":"Paces, J., Neymark, L., Whelan, J.F., Wooden, J.L., Lund, S., and Marshall, B., 2010, Limited hydrologic response to Pleistocene climate change in deep vadose zones - Yucca Mountain, Nevada: Earth and Planetary Science Letters, v. 300, no. 3-4, p. 287-298, https://doi.org/10.1016/j.epsl.2010.10.006.","productDescription":"12 p.","startPage":"287","endPage":"298","costCenters":[{"id":308,"text":"Geology and Environmental Change Science Center","active":false,"usgs":true}],"links":[{"id":243178,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215379,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.epsl.2010.10.006"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -116.5,36.83 ], [ -116.5,36.86 ], [ -116.45,36.86 ], [ -116.45,36.83 ], [ -116.5,36.83 ] ] ] } } ] }","volume":"300","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4791e4b0c8380cd678d2","contributors":{"authors":[{"text":"Paces, J.B. 0000-0002-9809-8493","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":27482,"corporation":false,"usgs":true,"family":"Paces","given":"J.B.","affiliations":[],"preferred":false,"id":450596,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Neymark, L.A. 0000-0003-4190-0278","orcid":"https://orcid.org/0000-0003-4190-0278","contributorId":56673,"corporation":false,"usgs":true,"family":"Neymark","given":"L.A.","affiliations":[],"preferred":false,"id":450598,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Whelan, J. F.","contributorId":45328,"corporation":false,"usgs":true,"family":"Whelan","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":450597,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooden, J. L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":450599,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lund, S.P.","contributorId":98054,"corporation":false,"usgs":true,"family":"Lund","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":450600,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Marshall, B.D.","contributorId":19581,"corporation":false,"usgs":true,"family":"Marshall","given":"B.D.","email":"","affiliations":[],"preferred":false,"id":450595,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70035516,"text":"70035516 - 2010 - Laboratory chalcopyrite oxidation by Acidithiobacillus ferrooxidans: Oxygen and sulfur isotope fractionation","interactions":[],"lastModifiedDate":"2012-03-12T17:21:49","indexId":"70035516","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Laboratory chalcopyrite oxidation by Acidithiobacillus ferrooxidans: Oxygen and sulfur isotope fractionation","docAbstract":"Laboratory experiments were conducted to simulate chalcopyrite oxidation under anaerobic and aerobic conditions in the absence or presence of the bacterium Acidithiobacillus ferrooxidans. Experiments were carried out with 3 different oxygen isotope values of water (??18OH2O) so that approach to equilibrium or steady-state isotope fractionation for different starting conditions could be evaluated. The contribution of dissolved O2 and water-derived oxygen to dissolved sulfate formed by chalcopyrite oxidation was unambiguously resolved during the aerobic experiments. Aerobic oxidation of chalcopyrite showed 93 ?? 1% incorporation of water oxygen into the resulting sulfate during the biological experiments. Anaerobic experiments showed similar percentages of water oxygen incorporation into sulfate, but were more variable. The experiments also allowed determination of sulfate-water oxygen isotope fractionation, ??18OSO4-H2O, of ~ 3.8??? for the anaerobic experiments. Aerobic oxidation produced apparent ??SO4-H2O values (6.4???) higher than the anaerobic experiments, possibly due to additional incorporation of dissolved O2 into sulfate. ??34SSO4 values are ~ 4??? lower than the parent sulfide mineral during anaerobic oxidation of chalcopyrite, with no significant difference between abiotic and biological processes. For the aerobic experiments, a small depletion in ??34SSO4 of ~- 1.5 ?? 0.2??? was observed for the biological experiments. Fewer solids precipitated during oxidation under aerobic conditions than under anaerobic conditions, which may account for the observed differences in sulfur isotope fractionation under these contrasting conditions. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2009.10.001","issn":"00092541","usgsCitation":"Thurston, R., Mandernack, K., and Shanks, W.C., 2010, Laboratory chalcopyrite oxidation by Acidithiobacillus ferrooxidans: Oxygen and sulfur isotope fractionation: Chemical Geology, v. 269, no. 3-4, p. 252-261, https://doi.org/10.1016/j.chemgeo.2009.10.001.","startPage":"252","endPage":"261","numberOfPages":"10","costCenters":[],"links":[{"id":216479,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2009.10.001"},{"id":244350,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"269","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4105e4b0c8380cd65231","contributors":{"authors":[{"text":"Thurston, R.S.","contributorId":102712,"corporation":false,"usgs":true,"family":"Thurston","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":451047,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mandernack, K.W.","contributorId":68913,"corporation":false,"usgs":true,"family":"Mandernack","given":"K.W.","email":"","affiliations":[],"preferred":false,"id":451045,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shanks, Wayne C. III","contributorId":100527,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":451046,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035547,"text":"70035547 - 2010 - Importance of coastal change variables in determining vulnerability to sea- and lake-level change","interactions":[],"lastModifiedDate":"2012-03-12T17:21:49","indexId":"70035547","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Importance of coastal change variables in determining vulnerability to sea- and lake-level change","docAbstract":"In 2001, the U.S. Geological Survey began conducting scientific assessments of coastal vulnerability to potential future sea- and lake-level changes in 22 National Park Service sea- and lakeshore units. Coastal park units chosen for the assessment included a variety of geological and physical settings along the U.S. Atlantic, Pacific, Gulf of Mexico, Gulf of Alaska, Caribbean, and Great Lakes shorelines. This research is motivated by the need to understand and anticipate coastal changes caused by accelerating sea-level rise, as well as lake-level changes caused by climate change, over the next century. The goal of these assessments is to provide information that can be used to make long-term (decade to century) management decisions. Here we analyze the results of coastal vulnerability assessments for several coastal national park units. Index-based assessments quantify the likelihood that physical changes may occur based on analysis of the following variables: tidal range, ice cover, wave height, coastal slope, historical shoreline change rate, geomorphology, and historical rate of relative sea- or lake-level change. This approach seeks to combine a coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, and it provides a measure of the system's potential vulnerability to the effects of sea- or lake-level change. Assessments for 22 park units are combined to evaluate relationships among the variables used to derive the index. Results indicate that Atlantic and Gulf of Mexico parks have the highest vulnerability rankings relative to other park regions. A principal component analysis reveals that 99% of the index variability can be explained by four variables: geomorphology, regional coastal slope, water-level change rate, and mean significant wave height. Tidal range, ice cover, and historical shoreline change are not as important when the index is evaluated at large spatial scales (thousands of kilometers). ?? 2010 Coastal Education and Research Foundation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2112/08-1102.1","issn":"07490208","usgsCitation":"Pendleton, E., Thieler, E., and Williams, S., 2010, Importance of coastal change variables in determining vulnerability to sea- and lake-level change: Journal of Coastal Research, v. 26, no. 1, p. 176-183, https://doi.org/10.2112/08-1102.1.","startPage":"176","endPage":"183","numberOfPages":"8","costCenters":[],"links":[{"id":475799,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.2112/08-1102.1","text":"External Repository"},{"id":216451,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2112/08-1102.1"},{"id":244322,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3937e4b0c8380cd61849","contributors":{"authors":[{"text":"Pendleton, E.A.","contributorId":9742,"corporation":false,"usgs":true,"family":"Pendleton","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":451184,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thieler, E.R. 0000-0003-4311-9717","orcid":"https://orcid.org/0000-0003-4311-9717","contributorId":93082,"corporation":false,"usgs":true,"family":"Thieler","given":"E.R.","affiliations":[],"preferred":false,"id":451186,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Williams, S.J.","contributorId":85203,"corporation":false,"usgs":true,"family":"Williams","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":451185,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035554,"text":"70035554 - 2010 - Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape","interactions":[],"lastModifiedDate":"2012-06-23T01:01:39","indexId":"70035554","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":771,"text":"Animal Biodiversity and Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape","docAbstract":"Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a 2,430 km2, mostly forested, multiple-use watershed in northwestern California. Our objectives were: (1) to differentiate unique headwater types using 69 abiotic and vegetation variables measured at three spatial scales, and then to reduce these to informative subsets; (2) determine if distinct biota occupied the different tributary types; (3) determine the environmental attributes associated with the presence and abundance of these biotic assemblages; and (4) using niche modeling, determine key attribute thresholds to illustrate how these biota could be employed as metrics of system integrity and ecological services. Several taxa were sufficiently abundant and widespread to use as bio-indicators: the presence and abundance of steelhead trout (Oncorhynchus mykiss), herpetofauna (reptile and amphibian) species richness, and signal crayfish (Pacifastacus leniusculus) represented different trophic positions, value as commercial resources (steelhead), sensitivity to environmental stress (amphibians), and indicators of biodiversity (herpetofauna species richness). Herpetofauna species richness did not differ, but abundances of steelhead trout, signal crayfish, and amphibian richness all differed significantly among tributary types. Niche models indicated that distribution and abundance patterns in both riparian and aquatic environments were associated with physical and structural attributes at multiple spatial scales, both within and around reaches. The bio-indicators responded to unique sets of attributes, reflecting the high environmental heterogeneity in headwater tributaries across this large watershed. These niche attributes represented a wide range of headwater environments, indicating responses to a number of natural and anthropogenic conditions, and demonstrated the value of using a suite of bio-indicators to elucidate watershed conditions, and to examine numerous disturbances that may influence ecological integrity.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Animal Biodiversity and Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"1578665X","usgsCitation":"Welsh, H., Hodgson, G., Duda, J., and Emlen, J., 2010, Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape: Animal Biodiversity and Conservation, v. 33, no. 1, p. 63-87.","startPage":"63","endPage":"87","numberOfPages":"25","costCenters":[],"links":[{"id":243908,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":257807,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://abc.museucienciesjournals.cat/volum-33-1-2010-abc/faunal-assemblages-and-multi-scale-habitat-patterns-in-headwater-tributaries-of-the-south-fork-trinity-river-an-unregulated-river-embedded-within-a-multiple-use-landscape/?lang=en","linkFileType":{"id":5,"text":"html"}}],"volume":"33","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f2ce4b0c8380cd537de","contributors":{"authors":[{"text":"Welsh, H.H.","contributorId":41240,"corporation":false,"usgs":true,"family":"Welsh","given":"H.H.","affiliations":[],"preferred":false,"id":451214,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hodgson, G.R.","contributorId":30475,"corporation":false,"usgs":true,"family":"Hodgson","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":451213,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Duda, J.J. 0000-0001-7431-8634","orcid":"https://orcid.org/0000-0001-7431-8634","contributorId":105073,"corporation":false,"usgs":true,"family":"Duda","given":"J.J.","affiliations":[],"preferred":false,"id":451216,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Emlen, J.M.","contributorId":63979,"corporation":false,"usgs":true,"family":"Emlen","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":451215,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035583,"text":"70035583 - 2010 - Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007","interactions":[],"lastModifiedDate":"2012-03-12T17:21:50","indexId":"70035583","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007","docAbstract":"Before 1900, the Missouri-Mississippi River system transported an estimated 400 million metric tons per year of sediment from the interior of the United States to coastal Louisiana. During the last two decades (1987-2006), this transport has averaged 145 million metric tons per year. The cause for this substantial decrease in sediment has been attributed to the trapping characteristics of dams constructed on the muddy part of the Missouri River during the 1950s. However, reexamination of more than 60 years of water- and sediment-discharge data indicates that the dams alone are not the sole cause. These dams trap about 100-150 million metric tons per year, which represent about half the decrease in sediment discharge near the mouth of the Mississippi. Changes in relations between water discharge and suspended-sediment concentration suggest that the Missouri-Mississippi has been transformed from a transport-limited to a supply-limited system. Thus, other engineering activities such as meander cutoffs, river-training structures, and bank revetments as well as soil erosion controls have trapped sediment, eliminated sediment sources, or protected sediment that was once available for transport episodically throughout the year. Removing major engineering structures such as dams probably would not restore sediment discharges to pre-1900 state, mainly because of the numerous smaller engineering structures and other soil-retention works throughout the Missouri-Mississippi system. ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7477","issn":"08856087","usgsCitation":"Meade, R., and Moody, J.A., 2010, Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007: Hydrological Processes, v. 24, no. 1, p. 35-49, https://doi.org/10.1002/hyp.7477.","startPage":"35","endPage":"49","numberOfPages":"15","costCenters":[],"links":[{"id":216452,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7477"},{"id":244323,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-10-13","publicationStatus":"PW","scienceBaseUri":"5059f3d2e4b0c8380cd4b9aa","contributors":{"authors":[{"text":"Meade, R.H.","contributorId":27449,"corporation":false,"usgs":true,"family":"Meade","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":451332,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":451333,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035584,"text":"70035584 - 2010 - Survival and breeding of polar bears in the southern Beaufort Sea in relation to sea ice","interactions":[],"lastModifiedDate":"2016-06-27T12:35:19","indexId":"70035584","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2158,"text":"Journal of Animal Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Survival and breeding of polar bears in the southern Beaufort Sea in relation to sea ice","docAbstract":"1. Observed and predicted declines in Arctic sea ice have raised concerns about marine mammals. In May 2008, the US Fish and Wildlife Service listed polar bears (Ursus maritimus) - one of the most ice-dependent marine mammals - as threatened under the US Endangered Species Act. 2. We evaluated the effects of sea ice conditions on vital rates (survival and breeding probabilities) for polar bears in the southern Beaufort Sea. Although sea ice declines in this and other regions of the polar basin have been among the greatest in the Arctic, to date population-level effects of sea ice loss on polar bears have only been identified in western Hudson Bay, near the southern limit of the species' range. 3. We estimated vital rates using multistate capture-recapture models that classified individuals by sex, age and reproductive category. We used multimodel inference to evaluate a range of statistical models, all of which were structurally based on the polar bear life cycle. We estimated parameters by model averaging, and developed a parametric bootstrap procedure to quantify parameter uncertainty. 4. In the most supported models, polar bear survival declined with an increasing number of days per year that waters over the continental shelf were ice free. In 2001-2003, the ice-free period was relatively short (mean 101 days) and adult female survival was high (0 ∙ 96-0 ∙ 99, depending on reproductive state). In 2004 and 2005, the ice-free period was longer (mean 135 days) and adult female survival was low (0 ∙ 73-0 ∙ 79, depending on reproductive state). Breeding rates and cub litter survival also declined with increasing duration of the ice-free period. Confidence intervals on vital rate estimates were wide. 5. The effects of sea ice loss on polar bears in the southern Beaufort Sea may apply to polar bear populations in other portions of the polar basin that have similar sea ice dynamics and have experienced similar, or more severe, sea ice declines. Our findings therefore are relevant to the extinction risk facing approximately one-third of the world's polar bears.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Animal Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"British Ecological Society","doi":"10.1111/j.1365-2656.2009.01603.x","issn":"00218790","usgsCitation":"Regehr, E., Hunter, C., Caswell, H., Amstrup, S.C., and Stirling, I., 2010, Survival and breeding of polar bears in the southern Beaufort Sea in relation to sea ice: Journal of Animal Ecology, v. 79, no. 1, p. 117-127, https://doi.org/10.1111/j.1365-2656.2009.01603.x.","startPage":"117","endPage":"127","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":244324,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216453,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2656.2009.01603.x"}],"volume":"79","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-11","publicationStatus":"PW","scienceBaseUri":"505ba2ade4b08c986b31f899","contributors":{"authors":[{"text":"Regehr, E.V.","contributorId":90937,"corporation":false,"usgs":true,"family":"Regehr","given":"E.V.","affiliations":[],"preferred":false,"id":451336,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hunter, C.M.","contributorId":19670,"corporation":false,"usgs":true,"family":"Hunter","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":451334,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Caswell, H.","contributorId":103114,"corporation":false,"usgs":true,"family":"Caswell","given":"H.","email":"","affiliations":[],"preferred":false,"id":451337,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":451335,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stirling, I.","contributorId":103615,"corporation":false,"usgs":false,"family":"Stirling","given":"I.","email":"","affiliations":[],"preferred":false,"id":451338,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036203,"text":"70036203 - 2010 - Inter-comparison of hydro-climatic regimes across northern catchments: Synchronicity, resistance and resilience","interactions":[],"lastModifiedDate":"2012-03-12T17:22:05","indexId":"70036203","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Inter-comparison of hydro-climatic regimes across northern catchments: Synchronicity, resistance and resilience","docAbstract":"The higher mid-latitudes of the Northern Hemisphere are particularly sensitive to climate change as small differences in temperature determine frozen ground status, precipitation phase, and the magnitude and timing of snow accumulation and melt. An international inter-catchment comparison program, North-Watch, seeks to improve our understanding of the sensitivity of northern catchments to climate change by examining their hydrological and biogeochemical responses. The catchments are located in Sweden (Krycklan), Scotland (Mharcaidh, Girnock and Strontian), the United States (Sleepers River, Hubbard Brook and HJ Andrews) and Canada (Catamaran, Dorset and Wolf Creek). This briefing presents the initial stage of the North-Watch program, which focuses on how these catchments collect, store and release water and identify 'types' of hydro-climatic catchment response. At most sites, a 10-year data of daily precipitation, discharge and temperature were compiled and evaporation and storage were calculated. Inter-annual and seasonal patterns of hydrological processes were assessed via normalized fluxes and standard flow metrics. At the annual-scale, relations between temperature, precipitation and discharge were compared, highlighting the role of seasonality, wetness and snow/frozen ground. The seasonal pattern and synchronicity of fluxes at the monthly scale provided insight into system memory and the role of storage. We identified types of catchments that rapidly translate precipitation into runoff and others that more readily store water for delayed release. Synchronicity and variance of rainfall-runoff patterns were characterized by the coefficient of variation (cv) of monthly fluxes and correlation coefficients. Principal component analysis (PCA) revealed clustering among like catchments in terms of functioning, largely controlled by two components that (i) reflect temperature and precipitation gradients and the correlation of monthly precipitation and discharge and (ii) the seasonality of precipitation and storage. By advancing the ecological concepts of resistance and resilience for catchment functioning, results provided a conceptual framework for understanding susceptibility to hydrological change across northern catchments. ?? 2010 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7880","issn":"08856087","usgsCitation":"Carey, S., Tetzlaff, D., Seibert, J., Soulsby, C., Buttle, J., Laudon, H., McDonnell, J., McGuire, K., Caissie, D., Shanley, J., Kennedy, M., Devito, K., and Pomeroy, J., 2010, Inter-comparison of hydro-climatic regimes across northern catchments: Synchronicity, resistance and resilience: Hydrological Processes, v. 24, no. 24, p. 3591-3602, https://doi.org/10.1002/hyp.7880.","startPage":"3591","endPage":"3602","numberOfPages":"12","costCenters":[],"links":[{"id":475887,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/hyp.7880","text":"Publisher Index Page"},{"id":218426,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7880"},{"id":246433,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"24","noUsgsAuthors":false,"publicationDate":"2010-10-21","publicationStatus":"PW","scienceBaseUri":"505a3ca0e4b0c8380cd62ed4","contributors":{"authors":[{"text":"Carey, S.K.","contributorId":11460,"corporation":false,"usgs":true,"family":"Carey","given":"S.K.","email":"","affiliations":[],"preferred":false,"id":454853,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tetzlaff, D.","contributorId":106622,"corporation":false,"usgs":true,"family":"Tetzlaff","given":"D.","email":"","affiliations":[],"preferred":false,"id":454864,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seibert, J.","contributorId":37513,"corporation":false,"usgs":true,"family":"Seibert","given":"J.","email":"","affiliations":[],"preferred":false,"id":454856,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Soulsby, C.","contributorId":40713,"corporation":false,"usgs":true,"family":"Soulsby","given":"C.","affiliations":[],"preferred":false,"id":454857,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Buttle, J.","contributorId":10652,"corporation":false,"usgs":true,"family":"Buttle","given":"J.","email":"","affiliations":[],"preferred":false,"id":454852,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Laudon, H.","contributorId":82444,"corporation":false,"usgs":false,"family":"Laudon","given":"H.","email":"","affiliations":[],"preferred":false,"id":454862,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McDonnell, J.","contributorId":61587,"corporation":false,"usgs":true,"family":"McDonnell","given":"J.","email":"","affiliations":[],"preferred":false,"id":454859,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McGuire, K.","contributorId":63219,"corporation":false,"usgs":true,"family":"McGuire","given":"K.","email":"","affiliations":[],"preferred":false,"id":454860,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Caissie, D.","contributorId":85381,"corporation":false,"usgs":true,"family":"Caissie","given":"D.","email":"","affiliations":[],"preferred":false,"id":454863,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Shanley, J.","contributorId":37488,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","affiliations":[],"preferred":false,"id":454855,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Kennedy, M.","contributorId":80131,"corporation":false,"usgs":true,"family":"Kennedy","given":"M.","affiliations":[],"preferred":false,"id":454861,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Devito, K.","contributorId":17083,"corporation":false,"usgs":true,"family":"Devito","given":"K.","email":"","affiliations":[],"preferred":false,"id":454854,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Pomeroy, J.W.","contributorId":49223,"corporation":false,"usgs":true,"family":"Pomeroy","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":454858,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70036204,"text":"70036204 - 2010 - Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape","interactions":[],"lastModifiedDate":"2012-03-12T17:22:05","indexId":"70036204","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":682,"text":"Agriculture, Ecosystems and Environment","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape","docAbstract":"One anticipated benefit of ecosystem restoration is water quality improvement. This study evaluated NO3-N and phosphorus in subsurface waters during prairie establishment following decades of row-crop agriculture. A prairie seeding in late 2003 became established in 2006. Wells and suction cup samplers were monitored for NO3-N and phosphorus. Nitrate-N varied with time and landscape position. Non-detectable NO3-N concentrations became modal along ephemeral drainageways in 2006, when average concentrations in uplands first became <10mg NO3-NL-1. This decline continued and upland groundwater averaged near 2mg NO3-NL-1 after 2007. The longer time lag in NO3-N response in uplands was attributed to greater quantities of leachable N in upland subsoils. Spatial differences in vadose-zone travel times were less important, considering water table dynamics. Phosphorus showed a contrasting landscape pattern, without any obvious temporal trend. Phosphorus was greatest along and near ephemeral drainageways. Sediment accumulation from upland agricultural erosion provided a source of P along drainageways, where shallow, reductive groundwater increased P solubility. Phosphorus exceeded eutrophication risk thresholds in these lower areas, where saturation-excess runoff could readily transport P to surface waters. Legacy impacts of past agricultural erosion and sedimentation may include soluble phosphorus in shallow groundwater, at sites prone to saturation-excess runoff. ?? 2010.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Agriculture, Ecosystems and Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.agee.2010.08.003","issn":"01678809","usgsCitation":"Tomer, M., Schilling, K.E., Cambardella, C., Jacobson, P., and Drobney, P., 2010, Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape: Agriculture, Ecosystems and Environment, v. 139, no. 1-2, p. 206-213, https://doi.org/10.1016/j.agee.2010.08.003.","startPage":"206","endPage":"213","numberOfPages":"8","costCenters":[],"links":[{"id":246467,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218457,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.agee.2010.08.003"}],"volume":"139","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2dace4b0c8380cd5bf9d","contributors":{"authors":[{"text":"Tomer, M.D.","contributorId":77359,"corporation":false,"usgs":true,"family":"Tomer","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":454868,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":454867,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cambardella, C.A.","contributorId":103874,"corporation":false,"usgs":true,"family":"Cambardella","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":454869,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jacobson, P.","contributorId":11412,"corporation":false,"usgs":true,"family":"Jacobson","given":"P.","affiliations":[],"preferred":false,"id":454865,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Drobney, P.","contributorId":13421,"corporation":false,"usgs":true,"family":"Drobney","given":"P.","email":"","affiliations":[],"preferred":false,"id":454866,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036208,"text":"70036208 - 2010 - Hierarchical multi-scale classification of nearshore aquatic habitats of the Great Lakes: Western Lake Erie","interactions":[],"lastModifiedDate":"2013-03-06T15:59:59","indexId":"70036208","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Hierarchical multi-scale classification of nearshore aquatic habitats of the Great Lakes: Western Lake Erie","docAbstract":"Classification is a valuable conservation tool for examining natural resource status and problems and is being developed for coastal aquatic habitats. We present an objective, multi-scale hydrospatial framework for nearshore areas of the Great Lakes. The hydrospatial framework consists of spatial units at eight hierarchical scales from the North American Continent to the individual 270-m spatial cell. Characterization of spatial units based on fish abundance and diversity provides a fish-guided classification of aquatic areas at each spatial scale and demonstrates how classifications may be generated from that framework. Those classification units then provide information about habitat, as well as biotic conditions, which can be compared, contrasted, and hierarchically related spatially. Examples within several representative coastal or open water zones of the Western Lake Erie pilot area highlight potential application of this classification system to management problems. This classification system can assist natural resource managers with planning and establishing priorities for aquatic habitat protection, developing rehabilitation strategies, or identifying special management actions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.jglr.2010.09.005","issn":"03801330","usgsCitation":"McKenna, J., and Castiglione, C., 2010, Hierarchical multi-scale classification of nearshore aquatic habitats of the Great Lakes: Western Lake Erie: Journal of Great Lakes Research, v. 36, no. 4, p. 757-771, https://doi.org/10.1016/j.jglr.2010.09.005.","productDescription":"15 p.","startPage":"757","endPage":"771","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":218518,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2010.09.005"},{"id":246537,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Lake Erie","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -83.74,41.2 ], [ -83.74,43.26 ], [ -78.68,43.26 ], [ -78.68,41.2 ], [ -83.74,41.2 ] ] ] } } ] }","volume":"36","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30a2e4b0c8380cd5d7ec","contributors":{"authors":[{"text":"McKenna, J.E.","contributorId":10653,"corporation":false,"usgs":true,"family":"McKenna","given":"J.E.","affiliations":[],"preferred":false,"id":454882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Castiglione, C.","contributorId":33159,"corporation":false,"usgs":true,"family":"Castiglione","given":"C.","affiliations":[],"preferred":false,"id":454883,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70036209,"text":"70036209 - 2010 - Effects of landscape features on waterbird use of rice fields","interactions":[],"lastModifiedDate":"2012-03-12T17:22:02","indexId":"70036209","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"Effects of landscape features on waterbird use of rice fields","docAbstract":"Literature is reviewed to determine the effects of landscape features on waterbird use of fields in regions where rice (Oryza sativa) is grown. Rice-growing landscapes often consist of diverse land uses and land cover, including rice fields, irrigation ditches, other agricultural fields, grasslands, forests and natural wetlands. Numerous studies indicate that local management practices, such as water depth and timing of flooding and drawdown, can strongly influence waterbird use of a given rice field. However, the effects of size and distribution of rice fields and associated habitats at a landscape scale have received less attention. Even fewer studies have focused on local and landscape effects simultaneously. Habitat connectivity, area of rice, distance to natural wetlands, and presence and distance to unsuitable habitat can be important parameters influencing bird use of rice fields. However, responses to a given landscape vary with landscape structure, scale of analysis, among taxa and within taxa among seasons. A lack of multi-scale studies, particularly those extending beyond simple presence and abundance of a given species, and a lack of direct tests comparing the relative importance of landscape features with in-field management activities limits understanding of the importance of landscape in these systems and hampers waterbird conservation and management.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.033.s111","issn":"15244695","usgsCitation":"King, S., Elphick, C., Guadagnin, D., Taft, O., and Amano, T., 2010, Effects of landscape features on waterbird use of rice fields: Waterbirds, v. 33, no. SPEC.ISSUE.1, p. 151-159, https://doi.org/10.1675/063.033.s111.","startPage":"151","endPage":"159","numberOfPages":"9","costCenters":[],"links":[{"id":218519,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.033.s111"},{"id":246538,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"SPEC.ISSUE.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a073de4b0c8380cd515f8","contributors":{"authors":[{"text":"King, S.","contributorId":91323,"corporation":false,"usgs":true,"family":"King","given":"S.","affiliations":[],"preferred":false,"id":454888,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elphick, C.S.","contributorId":66388,"corporation":false,"usgs":true,"family":"Elphick","given":"C.S.","affiliations":[],"preferred":false,"id":454886,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Guadagnin, D.","contributorId":50767,"corporation":false,"usgs":true,"family":"Guadagnin","given":"D.","email":"","affiliations":[],"preferred":false,"id":454885,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Taft, O.","contributorId":81734,"corporation":false,"usgs":true,"family":"Taft","given":"O.","email":"","affiliations":[],"preferred":false,"id":454887,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Amano, T.","contributorId":11866,"corporation":false,"usgs":true,"family":"Amano","given":"T.","email":"","affiliations":[],"preferred":false,"id":454884,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036230,"text":"70036230 - 2010 - Conservation practice establishment in two northeast Iowa watersheds: Strategies, water quality implications, and lessons learned","interactions":[],"lastModifiedDate":"2012-03-12T17:22:06","indexId":"70036230","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2456,"text":"Journal of Soil and Water Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Conservation practice establishment in two northeast Iowa watersheds: Strategies, water quality implications, and lessons learned","docAbstract":"Coldwater trout streams are important natural resources in northeast Iowa. Extensive efforts have been made by state and federal agencies to protect and improve water quality in northeast Iowa streams that include Sny Magill Creek and Bloody Run Creek, which are located in Clayton County. A series of three water quality projects were implemented in Sny Magill Creek watershed during 1988 to 1999, which were supported by multiple agencies and focused on best management practice (BMP) adoption. Water quality monitoring was performed during 1992 to 2001 to assess the impact of these installed BMPs in the Sny Magill Creek watershed using a paired watershed approach, where the Bloody Run Creek watershed served as the control. Conservation practice adoption still occurred in the Bloody Run Creek watershed during the 10-year monitoring project and accelerated after the project ended, when a multiagency supported water quality project was implemented during 2002 to 2007. Statistical analysis of the paired watershed results using a pre/post model indicated that discharge increased 8% in Sny Magill Creek watershed relative to the Bloody Run Creek watershed, turbidity declined 41%, total suspended sediment declined 7%, and NOx-N (nitrate-nitrogen plus nitrite-nitrogen) increased 15%. Similar results were obtained with a gradual change statistical model.The weak sediment reductions and increased NOx-N levels were both unexpected and indicate that dynamics between adopted BMPs and stream systems need to be better understood. Fish surveys indicate that conditions for supporting trout fisheries have improved in both streams. Important lessons to be taken from the overall study include (1) committed project coordinators, agency collaborators, and landowners/producers are all needed for successful water quality projects; (2) smaller watershed areas should be used in paired studies; (3) reductions in stream discharge may be required in these systems in order for significant sediment load decreases to occur; (4) long-term monitoring on the order of decades can be required to detect meaningful changes in water quality in response to BMP implementation; and (5) all consequences of specific BMPs need to be considered when considering strategies for watershed protection.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Soil and Water Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2489/jswc.65.6.381","issn":"00224561","usgsCitation":"Gassman, P.W., Tisl, J., Palas, E., Fields, C., Isenhart, T., Schilling, K.E., Wolter, C., Seigley, L., and Helmers, M., 2010, Conservation practice establishment in two northeast Iowa watersheds: Strategies, water quality implications, and lessons learned: Journal of Soil and Water Conservation, v. 65, no. 6, p. 381-392, https://doi.org/10.2489/jswc.65.6.381.","startPage":"381","endPage":"392","numberOfPages":"12","costCenters":[],"links":[{"id":475817,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2489/jswc.65.6.381","text":"Publisher Index Page"},{"id":246397,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218395,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2489/jswc.65.6.381"}],"volume":"65","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-11-02","publicationStatus":"PW","scienceBaseUri":"5059f9f4e4b0c8380cd4d837","contributors":{"authors":[{"text":"Gassman, Philip W.","contributorId":33952,"corporation":false,"usgs":false,"family":"Gassman","given":"Philip","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":455001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tisl, J.A.","contributorId":13849,"corporation":false,"usgs":true,"family":"Tisl","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":454999,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Palas, E.A.","contributorId":85449,"corporation":false,"usgs":true,"family":"Palas","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":455006,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fields, C.L.","contributorId":83343,"corporation":false,"usgs":true,"family":"Fields","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":455005,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Isenhart, T.M.","contributorId":76963,"corporation":false,"usgs":true,"family":"Isenhart","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":455004,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":455003,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wolter, C.F.","contributorId":23301,"corporation":false,"usgs":true,"family":"Wolter","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":455000,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Seigley, L.S.","contributorId":35997,"corporation":false,"usgs":true,"family":"Seigley","given":"L.S.","email":"","affiliations":[],"preferred":false,"id":455002,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Helmers, M.J.","contributorId":89380,"corporation":false,"usgs":true,"family":"Helmers","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":455007,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70036247,"text":"70036247 - 2010 - Environmental drivers of fish functional diversity and composition in the Lower Colorado River Basin","interactions":[],"lastModifiedDate":"2012-03-12T17:22:06","indexId":"70036247","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Environmental drivers of fish functional diversity and composition in the Lower Colorado River Basin","docAbstract":"Freshwater conservation efforts require an understanding of how natural and anthropogenic factors shape the present-day biogeography of native and non-native species. This knowledge need is especially acute for imperiled native fishes in the highly modified Lower Colorado River Basin (LCRB), USA. In the present study we employed both a taxonomic and functional approach to explore how natural and human-related environmental drivers shape landscape-scale patterns of fish community composition in the LCRB. Our results showed that hydrologic alteration, watershed land use, and regional climate explained 30.3% and 44.7% of the total variation in fish community taxonomic and functional composition, respectively. Watersheds with greater dam densities and upstream storage capacity supported higher non-native functional diversity, suggesting that dams have provided additional \"niche opportunities\" for non-native equilibrium life-history strategists by introducing new reservoir habitat and modifying downstream flow and thermal regimes. By contrast, watersheds characterized by greater upstream land protection, lower dam densities, and higher variation in spring and summer precipitation supported fish communities with a strong complement of native species (opportunistic-periodic strategists). In conclusion, our study highlights the utility of a life-history approach to better understand the patterns and processes by which fish communities vary along environmental gradients.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/F10-095","issn":"0706652X","usgsCitation":"Pool, T., Olden, J., Whittier, J.B., and Paukert, C., 2010, Environmental drivers of fish functional diversity and composition in the Lower Colorado River Basin: Canadian Journal of Fisheries and Aquatic Sciences, v. 67, no. 11, p. 1791-1807, https://doi.org/10.1139/F10-095.","startPage":"1791","endPage":"1807","numberOfPages":"17","costCenters":[],"links":[{"id":246210,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218219,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/F10-095"}],"volume":"67","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a09b6e4b0c8380cd52025","contributors":{"authors":[{"text":"Pool, T.K.","contributorId":98573,"corporation":false,"usgs":true,"family":"Pool","given":"T.K.","email":"","affiliations":[],"preferred":false,"id":455089,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olden, J. D.","contributorId":12281,"corporation":false,"usgs":false,"family":"Olden","given":"J. D.","affiliations":[],"preferred":false,"id":455087,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Whittier, Joanna B.","contributorId":53151,"corporation":false,"usgs":false,"family":"Whittier","given":"Joanna","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":455088,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Paukert, C.P.","contributorId":10151,"corporation":false,"usgs":true,"family":"Paukert","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":455086,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}