{"pageNumber":"2351","pageRowStart":"58750","pageSize":"25","recordCount":185134,"records":[{"id":70029979,"text":"70029979 - 2007 - Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029979","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways","docAbstract":"Most nutrient enrichment studies in aquatic systems have focused on autotrophic food webs in systems where primary producers dominate the resource base. We tested the heterotrophic response to long-term nutrient enrichment in a forested, headwater stream. Our study design consisted of 2 years of pretreatment data in a reference and treatment stream and 2 years of continuous nitrogen (N) + phosphorus addition to the treatment stream. Studies were conducted with two leaf species that differed in initial C:N, Rhododendron maximum (rhododendron) and Acer rubrum (red maple). We determined the effects of nutrient addition on detrital resources (leaf breakdown rates, litter C:N and microbial activity) and tested whether nutrient enrichment affected macroinvertebrate consumers via increased biomass. Leaf breakdown rates were ca. 1.5 and 3?? faster during the first and second years of enrichment, respectively, in the treatment stream for both leaf types. Microbial respiration rates of both leaf types were 3?? higher with enrichment, and macroinvertebrate biomass associated with leaves increased ca. 2-3?? with enrichment. The mass of N in macroinvertebrate biomass relative to leaves tended to increase with enrichment up to 6?? for red maple and up to 44?? for rhododendron leaves. Lower quality (higher C:N) rhododendron leaves exhibited greater changes in leaf nutrient content and macroinvertebrate response to nutrient enrichment than red maple leaves, suggesting a unique response by different leaf species to nutrient enrichment. Nutrient concentrations used in this study were moderate and equivalent to those in streams draining watersheds with altered land use. Thus, our results suggest that similarly moderate levels of enrichment may affect detrital resource quality and subsequently lead to altered energy and nutrient flow in detrital food webs. ?? 2006 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Oecologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00442-006-0609-7","issn":"00298549","usgsCitation":"Greenwood, J., Rosemond, A., Wallace, J., Cross, W.F., and Weyers, H., 2007, Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways: Oecologia, v. 151, no. 4, p. 637-649, https://doi.org/10.1007/s00442-006-0609-7.","startPage":"637","endPage":"649","numberOfPages":"13","costCenters":[],"links":[{"id":240462,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212897,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00442-006-0609-7"}],"volume":"151","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-12-05","publicationStatus":"PW","scienceBaseUri":"505a69c1e4b0c8380cd73ea5","contributors":{"authors":[{"text":"Greenwood, J.L.","contributorId":92870,"corporation":false,"usgs":true,"family":"Greenwood","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":425164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosemond, A.D.","contributorId":96621,"corporation":false,"usgs":true,"family":"Rosemond","given":"A.D.","affiliations":[],"preferred":false,"id":425165,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wallace, J.B.","contributorId":10871,"corporation":false,"usgs":true,"family":"Wallace","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":425162,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cross, W. F.","contributorId":15412,"corporation":false,"usgs":true,"family":"Cross","given":"W.","email":"","middleInitial":"F.","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":425163,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weyers, H.S.","contributorId":8592,"corporation":false,"usgs":true,"family":"Weyers","given":"H.S.","email":"","affiliations":[],"preferred":false,"id":425161,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70029980,"text":"70029980 - 2007 - Using a bioenergetic model to assess growth reduction from catch-and-release fishing and hooking injury in rainbow trout, Oncorhynchus mykiss","interactions":[],"lastModifiedDate":"2016-05-31T13:43:22","indexId":"70029980","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1659,"text":"Fisheries Management and Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Using a bioenergetic model to assess growth reduction from catch-and-release fishing and hooking injury in rainbow trout, Oncorhynchus mykiss","docAbstract":"

A bioenergetic model was used to predict the potential effects of feeding cessation caused by catch-and-release capture and a reduction in feeding efficiency from hooking injuries on rainbow trout, Oncorhynchus mykiss (Walbaum), growth in southwest Alaska, USA. Simulations indicated that a 1-day feeding cessation for a rainbow trout captured one to two times during summer months resulted in deviations from expected growth of −3% to −15%. To represent debilitating hooking injuries, the proportion of the maximum feeding potential was decreased by 5–50% resulting in deviations from expected growth of −9% to −164%. Simulated growth effects were most prominent from captures during months when salmon eggs and flesh constituted the majority of the trout diet. Simulated growth effects from reduced foraging efficiency were most prominent when hooking injuries occurred early in the fishing season. These simulations suggest that rainbow trout are most vulnerable to decreases in growth when salmon are abundant and spawning and, coincidentally, during the months when most fishing occurs.

","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2400.2007.00533.x","issn":"0969997X","usgsCitation":"Meka, J.M., and Margraf, F., 2007, Using a bioenergetic model to assess growth reduction from catch-and-release fishing and hooking injury in rainbow trout, Oncorhynchus mykiss: Fisheries Management and Ecology, v. 14, no. 2, p. 131-139, https://doi.org/10.1111/j.1365-2400.2007.00533.x.","productDescription":"9 p.","startPage":"131","endPage":"139","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":240463,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212898,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2400.2007.00533.x"}],"volume":"14","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-03-19","publicationStatus":"PW","scienceBaseUri":"505bc023e4b08c986b329f54","contributors":{"authors":[{"text":"Meka, Julie M.","contributorId":44713,"corporation":false,"usgs":false,"family":"Meka","given":"Julie","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425166,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Margraf, F.J.","contributorId":47738,"corporation":false,"usgs":true,"family":"Margraf","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":425167,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70029982,"text":"70029982 - 2007 - Anaerobic biodegradation and hydrogeochemical controls on natural attenuation of trichloroethene in an inland forested wetland","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029982","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1042,"text":"Bioremediation Journal","active":true,"publicationSubtype":{"id":10}},"title":"Anaerobic biodegradation and hydrogeochemical controls on natural attenuation of trichloroethene in an inland forested wetland","docAbstract":"Anaerobic biodegradation was conducted in a forested wetland where a plume of trichloroethylene discharges from a sand aquifer through organic-rich wetland and stream-bottom sediments. The rapid response of the wetland hydrology to precipitation events altered groundwater flow and geochemistry during wet conditions in the spring compared to the drier conditions in the summer and fall. During dry conditions, partial reductive dechlorination of trichloroethylene to cis-1,2-dichloroethylene occurred in methanogenic wetland porewater. Influx of oxygenated recharge during wet conditions led to a change from methanogenic to iron-reducing conditions and a lack of 1,2-dichloroethylene production in the wet spring conditions. During these wet conditions, dilution was the primary attenuation mechanism evident for trichloroethylene in the wetland porewater. Trichloroethylene degradation was insignificant in anaerobic microcosms constructed with the shallow wetland sediment. Natural attenuation of chlorinated solvents by anaerobic biodegradation may not be efficient at all wetland sites, despite organic-rich characteristics of the sediment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bioremediation Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/10889860701429294","issn":"10889868","usgsCitation":"Lorah, M., Dyer, L., and Burris, D., 2007, Anaerobic biodegradation and hydrogeochemical controls on natural attenuation of trichloroethene in an inland forested wetland: Bioremediation Journal, v. 11, no. 2, p. 85-102, https://doi.org/10.1080/10889860701429294.","startPage":"85","endPage":"102","numberOfPages":"18","costCenters":[],"links":[{"id":212929,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/10889860701429294"},{"id":240497,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eab8e4b0c8380cd48a2f","contributors":{"authors":[{"text":"Lorah, M.M.","contributorId":29002,"corporation":false,"usgs":true,"family":"Lorah","given":"M.M.","affiliations":[],"preferred":false,"id":425170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dyer, L.J.","contributorId":87759,"corporation":false,"usgs":true,"family":"Dyer","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":425171,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burris, D.R.","contributorId":13037,"corporation":false,"usgs":true,"family":"Burris","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":425169,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029992,"text":"70029992 - 2007 - Local magnitude determinations for intermountain seismic belt earthquakes from broadband digital data","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70029992","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Local magnitude determinations for intermountain seismic belt earthquakes from broadband digital data","docAbstract":"The University of Utah Seismograph Stations (UUSS) earthquake catalogs for the Utah and Yellowstone National Park regions contain two types of size measurements: local magnitude (ML) and coda magnitude (MC), which is calibrated against ML. From 1962 through 1993, UUSS calculated ML values for southern and central Intermountain Seismic Belt earthquakes using maximum peak-to-peak (p-p) amplitudes on paper records from one to five Wood-Anderson (W-A) seismographs in Utah. For ML determinations of earthquakes since 1994, UUSS has utilized synthetic W-A seismograms from U.S. National Seismic Network and UUSS broadband digital telemetry stations in the region, which numbered 23 by the end of our study period on 30 June 2002. This change has greatly increased the percentage of earthquakes for which ML can be determined. It is now possible to determine ML for all M ???3 earthquakes in the Utah and Yellowstone regions and earthquakes as small as M <1 in some areas. To maintain continuity in the magnitudes in the UUSS earthquake catalogs, we determined empirical ML station corrections that minimize differences between MLs calculated from paper and synthetic W-A records. Application of these station corrections, in combination with distance corrections from Richter (1958) which have been in use at UUSS since 1962, produces ML values that do not show any significant distance dependence. ML determinations for the Utah and Yellowstone regions for 1981-2002 using our station corrections and Richter's distance corrections have provided a reliable data set for recalibrating the MC scales for these regions. Our revised ML values are consistent with available moment magnitude determinations for Intermountain Seismic Belt earthquakes. To facilitate automatic ML measurements, we analyzed the distribution of the times of maximum p-p amplitudes in synthetic W-A records. A 30-sec time window for maximum amplitudes, beginning 5 sec before the predicted Sg time, encompasses 95% of the maximum p-p amplitudes. In our judgment, this time window represents a good compromise between maximizing the chances of capturing the maximum amplitude and minimizing the risk of including other seismic events.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120060114","issn":"00371106","usgsCitation":"Pechmann, J., Nava, S., Terra, F., and Bernier, J., 2007, Local magnitude determinations for intermountain seismic belt earthquakes from broadband digital data: Bulletin of the Seismological Society of America, v. 97, no. 2, p. 557-574, https://doi.org/10.1785/0120060114.","startPage":"557","endPage":"574","numberOfPages":"18","costCenters":[],"links":[{"id":213071,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060114"},{"id":240656,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a48dfe4b0c8380cd681b7","contributors":{"authors":[{"text":"Pechmann, J.C.","contributorId":102632,"corporation":false,"usgs":true,"family":"Pechmann","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":425204,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nava, S.J.","contributorId":66470,"corporation":false,"usgs":true,"family":"Nava","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":425203,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Terra, F.M.","contributorId":11832,"corporation":false,"usgs":true,"family":"Terra","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":425201,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bernier, J.C.","contributorId":30442,"corporation":false,"usgs":true,"family":"Bernier","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":425202,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029993,"text":"70029993 - 2007 - A shifting mosaic of scholarly publishing, scientific delivery, and future impact changing the face of learned societies","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70029993","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"A shifting mosaic of scholarly publishing, scientific delivery, and future impact changing the face of learned societies","docAbstract":"Nonprofit scientific societies hope that their activities advance their particular mission and impact their profession and, in the broadest sense, humanity in positive ways. The digital age has provided unprecedented mechanisms to enhance the delivery of science to the world. The marketplace of scientific publishing is a rapidly shifting mosaic of challenges and opportunities, and the responses of nonprofit and commercial publishers vary widely, but their outcomes are still uncertain. The response of the American Society of Mammalogists (ASM) provides an example of how a relatively small society has altered its scientific delivery to enhance member benefits while attempting to sustain its economic viability. Since 2000, ASM has moved from a self-publishing, break-even, print-only model to a copublishing agreement with a commercial publisher (Alliance Communications Group, a division of Allen Press, Inc., Lawrence, Kansas), which now offers members various print and electronic options and generates a shared royalty. Although it is too early to gauge the economic impact of these changes, the ASM leadership clearly attempted to signal its desire for members to view their society as a package of opportunities for edification and involvement rather than just a provider of serial subscriptions. Future challenges facing nonprofit scientific societies include open access, fiscal realities, archiving of publications, and scientific and societal impact; future opportunities include a strengthening of member responsibilities and professionalism, development of data registries to enhance scientific progress, and bundling of like societies. The manner in which nonprofit scientific societies respond to these challenges and opportunities will no doubt affect their sustainability and future impact. ?? 2007 American Society of Mammalogists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Mammalogy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1644/06-MAMM-F-418.1","issn":"00222372","usgsCitation":"Leslie, D., 2007, A shifting mosaic of scholarly publishing, scientific delivery, and future impact changing the face of learned societies: Journal of Mammalogy, v. 88, no. 2, p. 275-286, https://doi.org/10.1644/06-MAMM-F-418.1.","startPage":"275","endPage":"286","numberOfPages":"12","costCenters":[],"links":[{"id":477025,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1644/06-mamm-f-418.1","text":"Publisher Index Page"},{"id":213072,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1644/06-MAMM-F-418.1"},{"id":240657,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-04-20","publicationStatus":"PW","scienceBaseUri":"5059e588e4b0c8380cd46dd1","contributors":{"authors":[{"text":"Leslie, David M. Jr.","contributorId":52514,"corporation":false,"usgs":true,"family":"Leslie","given":"David M.","suffix":"Jr.","affiliations":[],"preferred":false,"id":425205,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70030727,"text":"70030727 - 2007 - GIS methodology for quantifying channel change in Las Vegas, Nevada","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030727","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"GIS methodology for quantifying channel change in Las Vegas, Nevada","docAbstract":"This study applies spatial analyses to examine the consequences of accelerated urban expansion on a hydrologic system over a period of 24 years. Three sets of historical aerial photos are used in a GIS analysis to document the geomorphic history of Las Vegas Wash, which drains the rapidly growing Las Vegas urban area in southern Nevada. New spatial techniques are introduced to make quantitative measurements of the erosion at three specific time intervals in the hydrologic evolution of the channel and floodplain. Unlike other erosion studies that use two different elevation surfaces to assess erosion, this study used a single elevation surface to remove systematic and nonsystemic elevation errors. The spatial analysis quantifies channel changes for discrete time periods, calculates erosion volumes, and provides a foundation to examine how the specific mechanisms related to urban expansion have affected Las Vegas Wash. The erosion calculated over 24 years is the largest documented sediment loss attributed to the effect of rapid urban growth. ?? 2007 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2007.00073.x","issn":"1093474X","usgsCitation":"Buckingham, S., and Whitney, J., 2007, GIS methodology for quantifying channel change in Las Vegas, Nevada: Journal of the American Water Resources Association, v. 43, no. 4, p. 888-898, https://doi.org/10.1111/j.1752-1688.2007.00073.x.","startPage":"888","endPage":"898","numberOfPages":"11","costCenters":[],"links":[{"id":211767,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2007.00073.x"},{"id":239119,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-06-28","publicationStatus":"PW","scienceBaseUri":"505a146ae4b0c8380cd54a15","contributors":{"authors":[{"text":"Buckingham, S.E.","contributorId":9454,"corporation":false,"usgs":true,"family":"Buckingham","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":428408,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whitney, J.W.","contributorId":27437,"corporation":false,"usgs":true,"family":"Whitney","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":428409,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030730,"text":"70030730 - 2007 - Population estimates of Hyla cinerea (Schneider) (Green Tree frog) in an urban environment","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030730","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3444,"text":"Southeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Population estimates of Hyla cinerea (Schneider) (Green Tree frog) in an urban environment","docAbstract":"Hyla cinerea (Green Treefrog) is a common wetlands species in the southeastern US. To better understand its population dynamics, we followed a relatively isolated population of Green Treefrogs from June 2004 through October 2004 at a federal office complex in Lafayette, LA. Weekly, Green Treefrogs were caught, measured, marked with VIE tags, and released. The data were used to estimate population size. The time frame was split into two periods: before and after August 17, 2004. Before August 17, 2004, the average estimated population size was 143, and after August 24, 2005, this value jumped to 446, an increase possibly due to tadpoles metamorphosing into adults.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southeastern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1656/1528-7092(2007)6[203:PEOHCS]2.0.CO;2","issn":"15287092","usgsCitation":"Pham, L., Boudreaux, S., Karhbet, S., Price, B., Ackleh, A., Carter, J., and Pal, N., 2007, Population estimates of Hyla cinerea (Schneider) (Green Tree frog) in an urban environment: Southeastern Naturalist, v. 6, no. 2, p. 203-216, https://doi.org/10.1656/1528-7092(2007)6[203:PEOHCS]2.0.CO;2.","startPage":"203","endPage":"216","numberOfPages":"14","costCenters":[],"links":[{"id":239186,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211821,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1656/1528-7092(2007)6[203:PEOHCS]2.0.CO;2"}],"volume":"6","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7d6de4b0c8380cd79f37","contributors":{"authors":[{"text":"Pham, L.","contributorId":104283,"corporation":false,"usgs":true,"family":"Pham","given":"L.","email":"","affiliations":[],"preferred":false,"id":428426,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boudreaux, S.","contributorId":68106,"corporation":false,"usgs":true,"family":"Boudreaux","given":"S.","email":"","affiliations":[],"preferred":false,"id":428422,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Karhbet, S.","contributorId":76941,"corporation":false,"usgs":true,"family":"Karhbet","given":"S.","email":"","affiliations":[],"preferred":false,"id":428423,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Price, B.","contributorId":15406,"corporation":false,"usgs":true,"family":"Price","given":"B.","email":"","affiliations":[],"preferred":false,"id":428421,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ackleh, A. S.","contributorId":14787,"corporation":false,"usgs":false,"family":"Ackleh","given":"A. S.","affiliations":[],"preferred":false,"id":428420,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Carter, J. 0000-0003-0110-0284 carterj@usgs.gov","orcid":"https://orcid.org/0000-0003-0110-0284","contributorId":81839,"corporation":false,"usgs":true,"family":"Carter","given":"J.","email":"carterj@usgs.gov","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":428425,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pal, N.","contributorId":79702,"corporation":false,"usgs":true,"family":"Pal","given":"N.","email":"","affiliations":[],"preferred":false,"id":428424,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70030733,"text":"70030733 - 2007 - Controls on the variability of net infiltration to desert sandstone","interactions":[],"lastModifiedDate":"2018-04-03T17:13:30","indexId":"70030733","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Controls on the variability of net infiltration to desert sandstone","docAbstract":"

As populations grow in arid climates and desert bedrock aquifers are increasingly targeted for future development, understanding and quantifying the spatial variability of net infiltration becomes critically important for accurately inventorying water resources and mapping contamination vulnerability. This paper presents a conceptual model of net infiltration to desert sandstone and then develops an empirical equation for its spatial quantification at the watershed scale using linear least squares inversion methods for evaluating controlling parameters (independent variables) based on estimated net infiltration rates (dependent variables). Net infiltration rates used for this regression analysis were calculated from environmental tracers in boreholes and more than 3000 linear meters of vadose zone excavations in an upland basin in southwestern Utah underlain by Navajo sandstone. Soil coarseness, distance to upgradient outcrop, and topographic slope were shown to be the primary physical parameters controlling the spatial variability of net infiltration. Although the method should be transferable to other desert sandstone settings for determining the relative spatial distribution of net infiltration, further study is needed to evaluate the effects of other potential parameters such as slope aspect, outcrop parameters, and climate on absolute net infiltration rates.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005113","usgsCitation":"Heilweil, V.M., McKinney, T., Zhdanov, M.S., and Watt, D.E., 2007, Controls on the variability of net infiltration to desert sandstone: Water Resources Research, v. 43, no. 7, Article W07431; 15 p., https://doi.org/10.1029/2006WR005113.","productDescription":"Article W07431; 15 p.","costCenters":[],"links":[{"id":477213,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006wr005113","text":"Publisher Index Page"},{"id":239221,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-07-18","publicationStatus":"PW","scienceBaseUri":"5059fbd5e4b0c8380cd4dfc5","contributors":{"authors":[{"text":"Heilweil, Victor M. heilweil@usgs.gov","contributorId":837,"corporation":false,"usgs":true,"family":"Heilweil","given":"Victor","email":"heilweil@usgs.gov","middleInitial":"M.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":428443,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKinney, Tim S.","contributorId":66792,"corporation":false,"usgs":true,"family":"McKinney","given":"Tim S.","affiliations":[],"preferred":false,"id":428445,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhdanov, Michael S.","contributorId":37955,"corporation":false,"usgs":false,"family":"Zhdanov","given":"Michael","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":428444,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Watt, Dennis E.","contributorId":55286,"corporation":false,"usgs":true,"family":"Watt","given":"Dennis","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":428442,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029977,"text":"70029977 - 2007 - Advanced technologies demonstrated by the miniature integrated camera and spectrometer (MICAS) aboard deep space 1","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029977","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3454,"text":"Space Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Advanced technologies demonstrated by the miniature integrated camera and spectrometer (MICAS) aboard deep space 1","docAbstract":"MICAS is an integrated multi-channel instrument that includes an ultraviolet imaging spectrometer (80-185 nm), two high-resolution visible imagers (10-20 ??rad/pixel, 400-900 nm), and a short-wavelength infrared imaging spectrometer (1250-2600 nm). The wavelength ranges were chosen to maximize the science data that could be collected using existing semiconductor technologies and avoiding the need for multi-octave spectrometers. It was flown on DS1 to validate technologies derived from the development of PICS (Planetary Imaging Camera Spectrometer). These technologies provided a novel systems approach enabling the miniaturization and integration of four instruments into one entity, spanning a wavelength range from the UV to IR, and from ambient to cryogenic temperatures with optical performance at a fraction of a wavelength. The specific technologies incorporated were: a built-in fly-by sequence; lightweight and ultra-stable, monolithic silicon-carbide construction, which enabled room-temperature alignment for cryogenic (85-140 K) performance, and provided superb optical performance and immunity to thermal distortion; diffraction-limited, shared optics operating from 80 to 2600 nm; advanced detector technologies for the UV, visible and short-wavelength IR; high-performance thermal radiators coupled directly to the short-wave infrared (SWIR) detector optical bench, providing an instrument with a mass less than 10 kg, instrument power less than 10 W, and total instrument cost of less than ten million dollars. The design allows the wavelength range to be extended by at least an octave at the short wavelength end and to 50 microns at the long wavelength end. Testing of the completed instrument demonstrated excellent optical performance down to 77 K, which would enable a greatly reduced background for longer wavelength detectors. During the Deep Space 1 Mission, MICAS successfully collected images and spectra for asteroid 9969 Braille, Mars, and comet 19/P Borrelly. The Borrelly encounter was a scientific hallmark providing the first clear, high resolution images and excellent, short-wavelength infrared spectra of the surface of an active comet's nucleus. ?? 2007 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Space Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11214-007-9155-9","issn":"00386308","usgsCitation":"Rodgers, D., Beauchamp, P., Soderblom, L., Brown, R.H., Chen, G., Lee, M., Sandel, B., Thomas, D., Benoit, R., and Yelle, R., 2007, Advanced technologies demonstrated by the miniature integrated camera and spectrometer (MICAS) aboard deep space 1: Space Science Reviews, v. 129, no. 4, p. 309-326, https://doi.org/10.1007/s11214-007-9155-9.","startPage":"309","endPage":"326","numberOfPages":"18","costCenters":[],"links":[{"id":212870,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11214-007-9155-9"},{"id":240429,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"129","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-05-04","publicationStatus":"PW","scienceBaseUri":"5059e702e4b0c8380cd477c2","contributors":{"authors":[{"text":"Rodgers, D.H.","contributorId":83742,"corporation":false,"usgs":true,"family":"Rodgers","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":425156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beauchamp, P.M.","contributorId":49606,"corporation":false,"usgs":true,"family":"Beauchamp","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":425154,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Soderblom, L.A. 0000-0002-0917-853X","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":6139,"corporation":false,"usgs":true,"family":"Soderblom","given":"L.A.","affiliations":[],"preferred":false,"id":425148,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, R. H.","contributorId":19931,"corporation":false,"usgs":false,"family":"Brown","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425150,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chen, G.-S.","contributorId":20551,"corporation":false,"usgs":true,"family":"Chen","given":"G.-S.","email":"","affiliations":[],"preferred":false,"id":425151,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lee, M.","contributorId":32484,"corporation":false,"usgs":true,"family":"Lee","given":"M.","affiliations":[],"preferred":false,"id":425153,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sandel, B.R.","contributorId":105881,"corporation":false,"usgs":true,"family":"Sandel","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":425157,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Thomas, D.A.","contributorId":22584,"corporation":false,"usgs":true,"family":"Thomas","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":425152,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Benoit, R.T.","contributorId":15834,"corporation":false,"usgs":true,"family":"Benoit","given":"R.T.","email":"","affiliations":[],"preferred":false,"id":425149,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Yelle, R.V.","contributorId":74523,"corporation":false,"usgs":true,"family":"Yelle","given":"R.V.","email":"","affiliations":[],"preferred":false,"id":425155,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70030183,"text":"70030183 - 2007 - A classification of U.S. estuaries based on physical and hydrologic attributes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030183","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"A classification of U.S. estuaries based on physical and hydrologic attributes","docAbstract":"A classification of U.S. estuaries is presented based on estuarine characteristics that have been identified as important for quantifying stressor-response relationships in coastal systems. Estuaries within a class have similar physical and hydrologic characteristics and would be expected to demonstrate similar biological responses to stressor loads from the adjacent watersheds. Nine classes of estuaries were identified by applying cluster analysis to a database for 138 U.S. estuarine drainage areas. The database included physical measures of estuarine areas, depth and volume, as well as hydrologic parameters (i.e., tide height, tidal prism volume, freshwater inflow rates, salinity, and temperature). The ability of an estuary to dilute or flush pollutants can be estimated using physical and hydrologic properties such as volume, bathymetry, freshwater inflow and tidal exchange rates which influence residence time and affect pollutant loading rates. Thus, physical and hydrologic characteristics can be used to estimate the susceptibility of estuaries to pollutant effects. This classification of estuaries can be used by natural resource managers to describe and inventory coastal systems, understand stressor impacts, predict which systems are most sensitive to stressors, and manage and protect coastal resources. ?? Springer Science+Business Media B.V. 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-006-9372-9","issn":"01676369","usgsCitation":"Engle, V., Kurtz, J., Smith, L., Chancy, C., and Bourgeois, P., 2007, A classification of U.S. estuaries based on physical and hydrologic attributes: Environmental Monitoring and Assessment, v. 129, no. 1-3, p. 397-412, https://doi.org/10.1007/s10661-006-9372-9.","startPage":"397","endPage":"412","numberOfPages":"16","costCenters":[],"links":[{"id":211995,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-006-9372-9"},{"id":239392,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"129","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2007-02-03","publicationStatus":"PW","scienceBaseUri":"5059e342e4b0c8380cd45ef6","contributors":{"authors":[{"text":"Engle, V.D.","contributorId":15562,"corporation":false,"usgs":true,"family":"Engle","given":"V.D.","email":"","affiliations":[],"preferred":false,"id":426051,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kurtz, J.C.","contributorId":63616,"corporation":false,"usgs":true,"family":"Kurtz","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":426052,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, L.M.","contributorId":82650,"corporation":false,"usgs":true,"family":"Smith","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":426054,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chancy, C.","contributorId":72202,"corporation":false,"usgs":true,"family":"Chancy","given":"C.","email":"","affiliations":[],"preferred":false,"id":426053,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bourgeois, P.","contributorId":94498,"corporation":false,"usgs":true,"family":"Bourgeois","given":"P.","affiliations":[],"preferred":false,"id":426055,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70029978,"text":"70029978 - 2007 - Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029978","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests","docAbstract":"In recent years the ground-water demand of the population of the island of Maui, Hawaii, has significantly increased. To ensure prudent management of the ground-water resources, an improved understanding of ground-water flow systems is needed. At present, large-scale estimations of aquifer properties are lacking for Maui. Seven analytical methods using constant-rate and variable-rate withdrawals for single wells provide an estimate of hydraulic conductivity and transmissivity for 103 wells in central Maui. Methods based on constant-rate tests, although not widely used on Maui, offer reasonable estimates. Step-drawdown tests, which are more abundantly used than other tests, provide similar estimates as constant-rate tests. A numerical model validates the suitability of analytical solutions for step-drawdown tests and additionally provides an estimate of storage parameters. The results show that hydraulic conductivity is log-normally distributed and that for dike-free volcanic rocks it ranges over several orders of magnitude from 1 to 2,500 m/d. The arithmetic mean, geometric mean, and median values of hydraulic conductivity are respectively 520, 280, and 370 m/d for basalt and 80, 50, and 30 m/d for sediment. A geostatistical approach using ordinary kriging yields a prediction of hydraulic conductivity on a larger scale. Overall, the results are in agreement with values published for other Hawaiian islands. ?? 2007 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2007.00026.x","issn":"1093474X","usgsCitation":"Rotzoll, K., El-Kadi, A., and Gingerich, S.B., 2007, Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests: Journal of the American Water Resources Association, v. 43, no. 2, p. 334-345, https://doi.org/10.1111/j.1752-1688.2007.00026.x.","startPage":"334","endPage":"345","numberOfPages":"12","costCenters":[],"links":[{"id":212871,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2007.00026.x"},{"id":240430,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-03-15","publicationStatus":"PW","scienceBaseUri":"505a0b22e4b0c8380cd525b1","contributors":{"authors":[{"text":"Rotzoll, K.","contributorId":72205,"corporation":false,"usgs":true,"family":"Rotzoll","given":"K.","affiliations":[],"preferred":false,"id":425158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"El-Kadi, A. I.","contributorId":103838,"corporation":false,"usgs":true,"family":"El-Kadi","given":"A. I.","affiliations":[],"preferred":false,"id":425160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gingerich, S. B.","contributorId":83958,"corporation":false,"usgs":true,"family":"Gingerich","given":"S.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":425159,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032212,"text":"70032212 - 2007 - Simulated effects of recruitment variability, exploitation, and reduced habitat area on the muskellunge population in Shoepack Lake, Voyageurs National Park, Minnesota","interactions":[],"lastModifiedDate":"2016-06-01T15:14:21","indexId":"70032212","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Simulated effects of recruitment variability, exploitation, and reduced habitat area on the muskellunge population in Shoepack Lake, Voyageurs National Park, Minnesota","docAbstract":"

The genetically unique population of muskellunge Esox masquinongy inhabiting Shoepack Lake in Voyageurs National Park, Minnesota, is potentially at risk for loss of genetic variability and long-term viability. Shoepack Lake has been subject to dramatic surface area changes from the construction of an outlet dam by beavers Castor canadensis and its subsequent failure. We simulated the long-term dynamics of this population in response to recruitment variation, increased exploitation, and reduced habitat area. We then estimated the effective population size of the simulated population and evaluated potential threats to long-term viability, based on which we recommend management actions to help preserve the long-term viability of the population. Simulations based on the population size and habitat area at the beginning of a companion study resulted in an effective population size that was generally above the threshold level for risk of loss of genetic variability, except when fishing mortality was increased. Simulations based on the reduced habitat area after the beaver dam failure and our assumption of a proportional reduction in population size resulted in an effective population size that was generally below the threshold level for risk of loss of genetic variability. Our results identified two potential threats to the long-term viability of the Shoepack Lake muskellunge population, reduction in habitat area and exploitation. Increased exploitation can be prevented through traditional fishery management approaches such as the adoption of no-kill, barbless hook, and limited entry regulations. Maintenance of the greatest possible habitat area and prevention of future habitat area reductions will require maintenance of the outlet dam built by beavers. Our study should enhance the long-term viability of the Shoepack Lake muskellunge population and illustrates a useful approach for other unique populations. ?? Copyright by the American Fisheries Society 2007.

","language":"English","publisher":"Taylor & Francis","doi":"10.1577/M05-143.1","issn":"02755947","usgsCitation":"Frohnauer, N., Pierce, C., and Kallemeyn, L., 2007, Simulated effects of recruitment variability, exploitation, and reduced habitat area on the muskellunge population in Shoepack Lake, Voyageurs National Park, Minnesota: North American Journal of Fisheries Management, v. 27, no. 1, p. 77-88, https://doi.org/10.1577/M05-143.1.","productDescription":"12 p.","startPage":"77","endPage":"88","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":477161,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://lib.dr.iastate.edu/nrem_pubs/112","text":"External Repository"},{"id":242339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214599,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-143.1"}],"country":"United States","state":"Minnesota","otherGeospatial":"Shoepack Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -91.1264419555664,\n 47.60370355269362\n ],\n [\n -91.12326622009277,\n 47.60338525714934\n ],\n [\n -91.11974716186523,\n 47.60182268729636\n ],\n [\n -91.11644268035889,\n 47.60115713411171\n ],\n [\n -91.11571311950684,\n 47.6002600707703\n ],\n [\n -91.1162281036377,\n 47.59918936213052\n ],\n [\n -91.11348152160645,\n 47.597771362909974\n ],\n [\n -91.11365318298338,\n 47.596816362186885\n ],\n [\n -91.11824512481688,\n 47.59658484423505\n ],\n [\n -91.12009048461914,\n 47.59933405376774\n ],\n [\n -91.1257553100586,\n 47.60199630847375\n ],\n [\n -91.12730026245117,\n 47.60312483208168\n ],\n [\n -91.12742900848389,\n 47.60373248855614\n ],\n [\n -91.1264419555664,\n 47.60370355269362\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"27","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-02-01","publicationStatus":"PW","scienceBaseUri":"505b8f9fe4b08c986b319038","contributors":{"authors":[{"text":"Frohnauer, N.K.","contributorId":80096,"corporation":false,"usgs":true,"family":"Frohnauer","given":"N.K.","email":"","affiliations":[],"preferred":false,"id":435058,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pierce, C.L. 0000-0001-5088-5431","orcid":"https://orcid.org/0000-0001-5088-5431","contributorId":93606,"corporation":false,"usgs":true,"family":"Pierce","given":"C.L.","affiliations":[],"preferred":false,"id":435059,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kallemeyn, L.W.","contributorId":44864,"corporation":false,"usgs":true,"family":"Kallemeyn","given":"L.W.","email":"","affiliations":[],"preferred":false,"id":435057,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032211,"text":"70032211 - 2007 - Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70032211","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians","docAbstract":"One or more of three intense and persistent droughts impacted some Native American cultures in the early-11th, middle-12th and late-13th centuries, including the Anasazi, Fremont, Lovelock, and Mississippian (Cahokian) prehistorical cultures. Tree-ring-based reconstructions of precipitation and temperature indicate that warm drought periods occurred between AD 990 and 1060, AD 1135 and 1170, and AD 1276 and 1297. These droughts occurred during minima in the Pacific Decadal Oscillation and may have been associated with positive values of the Atlantic Multidecadal Oscillation. Each of the Native American cultures was supported, to a greater or lesser degree, by precipitation-dependent resources. Both the Four Corners region and Cahokia were sites of intense growth between about AD 1050 and 1130, and by AD 1150, cultures in both regions were undergoing stress. By AD 1300 the Anasazi and Fremont cultures had collapsed and their residual populations had either left their homelands or withered. In the case of Fremont populations, the AD 990-1060 drought may have had the greatest impact. This drought also may have affected the Anasazi, for it was at the end of this drought that some people from Chaco migrated to the San Juan River valley and founded the Salmon Ruin great house. Detailed data do not exist on the number of Lovelock habitation sites or populations over time; however, Lovelock populations appear to have retreated from the western Great Basin to California by AD 1300 or shortly thereafter.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.quascirev.2006.08.001","issn":"02773791","usgsCitation":"Benson, L.V., Berry, M., Jolie, E., Spangler, J., Stahle, D., and Hattori, E., 2007, Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians: Quaternary Science Reviews, v. 26, no. 3-4, p. 336-350, https://doi.org/10.1016/j.quascirev.2006.08.001.","startPage":"336","endPage":"350","numberOfPages":"15","costCenters":[],"links":[{"id":214598,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quascirev.2006.08.001"},{"id":242338,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7e27e4b0c8380cd7a396","contributors":{"authors":[{"text":"Benson, L. V.","contributorId":50159,"corporation":false,"usgs":true,"family":"Benson","given":"L.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":435053,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Berry, M.S.","contributorId":35141,"corporation":false,"usgs":true,"family":"Berry","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":435051,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jolie, E.A.","contributorId":65649,"corporation":false,"usgs":true,"family":"Jolie","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":435054,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Spangler, J.D.","contributorId":67310,"corporation":false,"usgs":true,"family":"Spangler","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":435055,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stahle, D.W.","contributorId":88573,"corporation":false,"usgs":true,"family":"Stahle","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":435056,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hattori, E.M.","contributorId":48371,"corporation":false,"usgs":true,"family":"Hattori","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":435052,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70029994,"text":"70029994 - 2007 - New K-Ar ages for calculating end-of-shield extrusion rates at West Maui volcano, Hawaiian island chain","interactions":[],"lastModifiedDate":"2019-03-25T11:44:12","indexId":"70029994","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"New K-Ar ages for calculating end-of-shield extrusion rates at West Maui volcano, Hawaiian island chain","docAbstract":"

Thirty-seven new K–Ar ages from West Maui volcano, Hawai‘i, are used to define the waning stages of shield growth and a brief episode of postshield volcanism. All but two samples from shield-stage strata have reversed polarity magnetization, so conceivably the exposed shield is not much older than the Olduvai Normal-Polarity subchron, or about 1.8 Ma. The oldest ages obtained are in the range 1.9–2.1 Ma but have large analytical error. Shield volcanism ended about 1.35 Ma, and postshield volcanism followed soon thereafter, persisting until about 1.2 Ma. Exposed shield-stage strata were emplaced at a rate of about 0.001 km3 per year, a rate smaller than historic Hawaiian magmatic rates by a factor of 100. Stratigraphic accumulation rates are similar to those measured previously at Wai‘anae volcano (O‘ahu) or the upper part of the Mauna Kea shield sequence (Hilo drill core, Hawai‘i). These rates diminish sharply during the final 0.3–0.5 m.y. of the shield stage. Hawaiian shield volcanoes begin waning well before their last 0.5 m.y. of life, then end quickly, geologically speaking, if West Maui is representative.

","language":"English","publisher":"Springer-Verlag","doi":"10.1007/s00445-006-0099-9","issn":"02588900","usgsCitation":"Sherrod, D.R., Murai, T., and Tagami, T., 2007, New K-Ar ages for calculating end-of-shield extrusion rates at West Maui volcano, Hawaiian island chain: Bulletin of Volcanology, v. 69, no. 6, p. 627-642, https://doi.org/10.1007/s00445-006-0099-9.","productDescription":"16 p.","startPage":"627","endPage":"642","numberOfPages":"16","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":240689,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"West Maui volcano","volume":"69","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-11-17","publicationStatus":"PW","scienceBaseUri":"505a651fe4b0c8380cd72b0d","contributors":{"authors":[{"text":"Sherrod, David R. 0000-0001-9460-0434 dsherrod@usgs.gov","orcid":"https://orcid.org/0000-0001-9460-0434","contributorId":527,"corporation":false,"usgs":true,"family":"Sherrod","given":"David","email":"dsherrod@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":425207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murai, T.","contributorId":54800,"corporation":false,"usgs":true,"family":"Murai","given":"T.","email":"","affiliations":[],"preferred":false,"id":425208,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tagami, Takahiro","contributorId":7474,"corporation":false,"usgs":true,"family":"Tagami","given":"Takahiro","email":"","affiliations":[],"preferred":false,"id":425206,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032210,"text":"70032210 - 2007 - Do females trade copulations for food? An experimental study on kittiwakes (Rissa tridactyla)","interactions":[],"lastModifiedDate":"2020-11-04T15:17:51.099577","indexId":"70032210","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":981,"text":"Behavioral Ecology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Do females trade copulations for food? An experimental study on kittiwakes (Rissa tridactyla)","title":"Do females trade copulations for food? An experimental study on kittiwakes (Rissa tridactyla)","docAbstract":"

Females of many species copulate more frequently than necessary to fertilize their eggs despite the potential costs. Several studies, particularly on socially monogamous birds, have suggested that females obtain immediate material benefits by trading copulations for nutrients or other resources. We experimentally tested this hypothesis by manipulating the food resources available to prelaying female black-legged kittiwakes (Rissa tridactyla). If female kittiwakes trade copulations for courtship feeding because they need the extra resources, well-fed females (experimental group) should be less willing to copulate compared with females that are more food limited (control group). Contrary to our predictions, we found that close to the start of laying experimental females copulated more frequently with their mate than control females. We also observed that males from the experimental group fed their mate at least as often as males from the control group. In experimental pairs, we still observed a positive correlation between the rate of copulation and the rate of courtship feeding. Our results thus refute the immediate material benefits hypothesis. Currently available data are consistent with the hypothesis that prelaying courtship feeding is a form of mating effort. We suggest that the rate of courtship feeding might be a sexually selected trait, on which females base decisions about timing and frequency of copulations, but this remains to be tested.

","language":"English","publisher":"Oxford Academic","doi":"10.1093/beheco/arl090","usgsCitation":"Kempenaers, B., Lanctot, R., Gill, V., Hatch, S.A., and Valcu, M., 2007, Do females trade copulations for food? An experimental study on kittiwakes (Rissa tridactyla): Behavioral Ecology, v. 18, no. 2, p. 345-353, https://doi.org/10.1093/beheco/arl090.","productDescription":"9 p.","startPage":"345","endPage":"353","numberOfPages":"9","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":488951,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/beheco/arl090","text":"Publisher Index Page"},{"id":242837,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Middleton Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -146.40243530273438,\n 59.39599576866911\n ],\n [\n -146.26407623291016,\n 59.39599576866911\n ],\n [\n -146.26407623291016,\n 59.47351201041221\n ],\n [\n -146.40243530273438,\n 59.47351201041221\n ],\n [\n -146.40243530273438,\n 59.39599576866911\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"18","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-12-13","publicationStatus":"PW","scienceBaseUri":"505a0360e4b0c8380cd50463","contributors":{"authors":[{"text":"Kempenaers, Bart","contributorId":54943,"corporation":false,"usgs":false,"family":"Kempenaers","given":"Bart","email":"","affiliations":[{"id":7029,"text":"Queen's University, Kingston, Ontario, Canada","active":true,"usgs":false},{"id":13130,"text":"Konrad Lorenz Institute for Ethology, Austrian Academy of Sciences","active":true,"usgs":false}],"preferred":false,"id":435047,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lanctot, Richard B.","contributorId":77879,"corporation":false,"usgs":false,"family":"Lanctot","given":"Richard B.","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":435050,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gill, V.A.","contributorId":35498,"corporation":false,"usgs":true,"family":"Gill","given":"V.A.","email":"","affiliations":[],"preferred":false,"id":435046,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hatch, Scott A. 0000-0002-0064-8187 shatch@usgs.gov","orcid":"https://orcid.org/0000-0002-0064-8187","contributorId":2625,"corporation":false,"usgs":true,"family":"Hatch","given":"Scott","email":"shatch@usgs.gov","middleInitial":"A.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":435048,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Valcu, M.","contributorId":63234,"corporation":false,"usgs":true,"family":"Valcu","given":"M.","affiliations":[],"preferred":false,"id":435049,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70029997,"text":"70029997 - 2007 - Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","interactions":[],"lastModifiedDate":"2018-10-16T10:25:59","indexId":"70029997","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1800,"text":"Geomicrobiology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","docAbstract":"

Carboxylated microspheres were employed as surrogates to assess the transport potential of Cryptosporidium parvumoocysts during forced- and natural-gradient tests conducted in July and October 2004. The tests involved poorly-sorted, near-surface sediments where groundwater is pumped from an alluvial aquifer underlying the Russian River, Sonoma County, CA. In an off channel infiltration basin and within the river, a mixture (2-, 3-, and 5- μm diameters) of fluorescently-labeled carboxylated microspheres and bromide tracers were used in two injection and recovery tests to assess sediment removal efficiency for the microspheres. Bottom sediments varied considerably in their filtration efficiency for Cryptosporidium.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomicrobiology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/01490450701456867","issn":"01490451","usgsCitation":"Metge, D.W., Harvey, R.W., Anders, R., Rosenberry, D.O., Seymour, D., and Jasperse, J., 2007, Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California: Geomicrobiology Journal, v. 24, no. 3-4, p. 231-245, https://doi.org/10.1080/01490450701456867.","productDescription":"15 p. ","startPage":"231","endPage":"245","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":240186,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212664,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01490450701456867"}],"country":"United States","state":"California","county":"Sonoma County","otherGeospatial":"Russian River Water Supply Facility","volume":"24","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbecce4b08c986b3297c1","contributors":{"authors":[{"text":"Metge, David W. dwmetge@usgs.gov","contributorId":663,"corporation":false,"usgs":true,"family":"Metge","given":"David","email":"dwmetge@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425225,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Ronald W. 0000-0002-2791-8503 rwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":564,"corporation":false,"usgs":true,"family":"Harvey","given":"Ronald","email":"rwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425223,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anders, Robert 0000-0002-2363-9072 randers@usgs.gov","orcid":"https://orcid.org/0000-0002-2363-9072","contributorId":1210,"corporation":false,"usgs":true,"family":"Anders","given":"Robert","email":"randers@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":425228,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425224,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Seymour, Donald","contributorId":175253,"corporation":false,"usgs":false,"family":"Seymour","given":"Donald","email":"","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425226,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jasperse, Jay","contributorId":168661,"corporation":false,"usgs":false,"family":"Jasperse","given":"Jay","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425227,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70029999,"text":"70029999 - 2007 - Sizing up earthquake damage: Differing points of view","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70029999","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1829,"text":"Geotimes","active":true,"publicationSubtype":{"id":10}},"title":"Sizing up earthquake damage: Differing points of view","docAbstract":"When a catastrophic event strikes an urban area, many different professionals hit the ground running. Emergency responders respond, reporters report, and scientists and engineers collect and analyze data. Journalists and scientists may share interest in these events, but they have very different missions. To a journalist, earthquake damage is news. To a scientist or engineer, earthquake damage represents a valuable source of data that can help us understand how strongly the ground shook as well as how particular structures responded to the shaking.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geotimes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00168556","usgsCitation":"Hough, S., and Bolen, A., 2007, Sizing up earthquake damage: Differing points of view: Geotimes, v. 52, no. 7, p. 46-48.","startPage":"46","endPage":"48","numberOfPages":"3","costCenters":[],"links":[{"id":240188,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9124e4b08c986b319787","contributors":{"authors":[{"text":"Hough, S.","contributorId":54355,"corporation":false,"usgs":true,"family":"Hough","given":"S.","email":"","affiliations":[],"preferred":false,"id":425232,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bolen, A.","contributorId":92057,"corporation":false,"usgs":true,"family":"Bolen","given":"A.","email":"","affiliations":[],"preferred":false,"id":425233,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030000,"text":"70030000 - 2007 - Detection, attribution, and sensitivity of trends toward earlier streamflow in the Sierra Nevada","interactions":[],"lastModifiedDate":"2016-07-27T12:22:06","indexId":"70030000","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2316,"text":"Journal of Geophysical Research D: Atmospheres","active":true,"publicationSubtype":{"id":10}},"title":"Detection, attribution, and sensitivity of trends toward earlier streamflow in the Sierra Nevada","docAbstract":"

Observed changes in the timing of snowmelt dominated streamflow in the western United States are often linked to anthropogenic or other external causes. We assess whether observed streamflow timing changes can be statistically attributed to external forcing, or whether they still lie within the bounds of natural (internal) variability for four large Sierra Nevada (CA) basins, at inflow points to major reservoirs. Streamflow timing is measured by \"center timing\" (CT), the day when half the annual flow has passed a given point. We use a physically based hydrology model driven by meteorological input from a global climate model to quantify the natural variability in CT trends. Estimated 50-year trends in CT due to natural climate variability often exceed estimated actual CT trends from 1950 to 1999. Thus, although observed trends in CT to date may be statistically significant, they cannot yet be statistically attributed to external influences on climate. We estimate that projected CT changes at the four major reservoir inflows will, with 90% confidence, exceed those from natural variability within 1-4 decades or 4-8 decades, depending on rates of future greenhouse gas emissions. To identify areas most likely to exhibit CT changes in response to rising temperatures, we calculate changes in CT under temperature increases from 1 to 5??. We find that areas with average winter temperatures between -2??C and -4??C are most likely to respond with significant CT shifts. Correspondingly, elevations from 2000 to 2800 in are most sensitive to temperature increases, with CT changes exceeding 45 days (earlier) relative to 1961-1990. Copyright 2007 by the American Geophysical Union.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research D: Atmospheres","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006JD008088","issn":"01480227","usgsCitation":"Maurer, E., Stewart, I., Bonfils, C., Duffy, P.B., and Cayan, D., 2007, Detection, attribution, and sensitivity of trends toward earlier streamflow in the Sierra Nevada: Journal of Geophysical Research D: Atmospheres, v. 112, no. 11, https://doi.org/10.1029/2006JD008088.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":477109,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jd008088","text":"Publisher Index Page"},{"id":240219,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212694,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JD008088"}],"volume":"112","issue":"11","noUsgsAuthors":false,"publicationDate":"2007-06-13","publicationStatus":"PW","scienceBaseUri":"5059ff7de4b0c8380cd4f210","contributors":{"authors":[{"text":"Maurer, E.P.","contributorId":30338,"corporation":false,"usgs":true,"family":"Maurer","given":"E.P.","email":"","affiliations":[],"preferred":false,"id":425234,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stewart, I.T.","contributorId":80062,"corporation":false,"usgs":true,"family":"Stewart","given":"I.T.","email":"","affiliations":[],"preferred":false,"id":425238,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bonfils, Celine","contributorId":51542,"corporation":false,"usgs":true,"family":"Bonfils","given":"Celine","email":"","affiliations":[],"preferred":false,"id":425236,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Duffy, P. B.","contributorId":77742,"corporation":false,"usgs":false,"family":"Duffy","given":"P.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":425237,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cayan, D.","contributorId":49563,"corporation":false,"usgs":true,"family":"Cayan","given":"D.","email":"","affiliations":[],"preferred":false,"id":425235,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030001,"text":"70030001 - 2007 - Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70030001","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","docAbstract":"Mountain regions throughout the world face intense development pressures associated with recreational and tourism uses. Despite these pressures, much of the research on bio-geophysical impacts of humans in mountain regions has focused on the effects of natural resource extraction. This paper describes findings from the first 3 years of a study examining high elevation watershed processes in a region undergoing alpine resort development. Our study is designed as a paired-watershed experiment. The Ranch Brook watershed (9.6 km2) is a relatively pristine, forested watershed and serves as the undeveloped 'control' basin. West Branch (11.7 km2) encompasses an existing alpine ski resort, with approximately 17% of the basin occupied by ski trails and impervious surfaces, and an additional 7% slated for clearing and development. Here, we report results for water years 2001-2003 of streamflow and water quality dynamics for these watersheds. Precipitation increases significantly with elevation in the watersheds, and winter precipitation represents 36-46% of annual precipitation. Artificial snowmaking from water within West Branch watershed currently augments annual precipitation by only 3-4%. Water yield in the developed basin exceeded that in the control by 18-36%. Suspended sediment yield was more than two and a half times greater and fluxes of all major solutes were higher in the developed basin. Our study is the first to document the effects of existing ski area development on hydrology and water quality in the northeastern US and will serve as an important baseline for evaluating the effects of planned resort expansion activities in this area.","largerWorkTitle":"Hydrological Processes","language":"English","doi":"10.1002/hyp.6700","issn":"08856087","usgsCitation":"Wemple, B., Shanley, J., Denner, J., Ross, D., and Mills, K., 2007, Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development, in Hydrological Processes, v. 21, no. 12, p. 1639-1650, https://doi.org/10.1002/hyp.6700.","startPage":"1639","endPage":"1650","numberOfPages":"12","costCenters":[],"links":[{"id":240220,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212695,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6700"}],"volume":"21","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-04-24","publicationStatus":"PW","scienceBaseUri":"505a36dde4b0c8380cd60a67","contributors":{"authors":[{"text":"Wemple, B.","contributorId":70257,"corporation":false,"usgs":true,"family":"Wemple","given":"B.","email":"","affiliations":[],"preferred":false,"id":425243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, J.","contributorId":37488,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","affiliations":[],"preferred":false,"id":425242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denner, J.","contributorId":31215,"corporation":false,"usgs":true,"family":"Denner","given":"J.","email":"","affiliations":[],"preferred":false,"id":425240,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ross, D.","contributorId":7049,"corporation":false,"usgs":true,"family":"Ross","given":"D.","affiliations":[],"preferred":false,"id":425239,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mills, K.","contributorId":37036,"corporation":false,"usgs":true,"family":"Mills","given":"K.","affiliations":[],"preferred":false,"id":425241,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70032209,"text":"70032209 - 2007 - Effects of upland disturbance and instream restoration on hydrodynamics and ammonium uptake in headwater streams","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70032209","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Effects of upland disturbance and instream restoration on hydrodynamics and ammonium uptake in headwater streams","docAbstract":"Delivery of water, sediments, nutrients, and organic matter to stream ecosystems is strongly influenced by the catchment of the stream and can be altered greatly by upland soil and vegetation disturbance. At the Fort Benning Military Installation (near Columbus, Georgia), spatial variability in intensity of military training results in a wide range of intensities of upland disturbance in stream catchments. A set of 8 streams in catchments spanning this upland disturbance gradient was selected for investigation of the impact of disturbance intensity on hydrodynamics and nutrient uptake. The size of transient storage zones and rates of NH4+ uptake in all study streams were among the lowest reported in the literature. Upland disturbance did not appear to influence stream hydrodynamics strongly, but it caused significant decreases in instream nutrient uptake. In October 2003, coarse woody debris (CWD) was added to 1/2 of the study streams (spanning the disturbance gradient) in an attempt to increase hydrodynamic and structural complexity, with the goals of enhancing biotic habitat and increasing nutrient uptake rates. CWD additions had positive short-term (within 1 mo) effects on hydrodynamic complexity (water velocity decreased and transient storage zone cross-sectional area, relative size of the transient storage zone, fraction of the median travel time attributable to transient storage over a standardized length of 200 m, and the hydraulic retention factor increased) and nutrient uptake (NH4+ uptake rates increased). Our results suggest that water quality in streams with intense upland disturbances can be improved by enhancing instream biotic nutrient uptake capacity through measures such as restoring stream CWD. ?? 2007 by The North American Benthological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the North American Benthological Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1899/0887-3593(2007)26[38:EOUDAI]2.0.CO;2","issn":"08873593","usgsCitation":"Roberts, B., Mulholland, P.J., and Houser, J., 2007, Effects of upland disturbance and instream restoration on hydrodynamics and ammonium uptake in headwater streams: Journal of the North American Benthological Society, v. 26, no. 1, p. 38-53, https://doi.org/10.1899/0887-3593(2007)26[38:EOUDAI]2.0.CO;2.","startPage":"38","endPage":"53","numberOfPages":"16","costCenters":[],"links":[{"id":215067,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1899/0887-3593(2007)26[38:EOUDAI]2.0.CO;2"},{"id":242836,"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":"505a081ce4b0c8380cd519a7","contributors":{"authors":[{"text":"Roberts, B.J.","contributorId":35144,"corporation":false,"usgs":true,"family":"Roberts","given":"B.J.","affiliations":[],"preferred":false,"id":435043,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mulholland, P. J.","contributorId":89081,"corporation":false,"usgs":false,"family":"Mulholland","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":435044,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Houser, J.N.","contributorId":91603,"corporation":false,"usgs":true,"family":"Houser","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":435045,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032206,"text":"70032206 - 2007 - Relating low‐flow characteristics to the base flow recession time constant at partial record stream gauges","interactions":[],"lastModifiedDate":"2018-04-03T12:03:15","indexId":"70032206","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Relating low‐flow characteristics to the base flow recession time constant at partial record stream gauges","docAbstract":"

Base flow recession information is helpful for regional estimation of low‐flow characteristics. However, analyses that exploit such information generally require a continuous record of streamflow at the estimation site to characterize base flow recession. Here we propose a simple method for characterizing base flow recession at low‐flow partial record stream gauges (i.e., sites with very few streamflow measurements under low‐streamflow conditions), and we use that characterization as the basis for a practical new approach to low‐flow regression. In a case study the introduction of a base flow recession time constant, estimated from a single pair of strategically timed streamflow measurements, approximately halves the root‐mean‐square estimation error relative to that of a conventional drainage area regression. Additional streamflow measurements can be used to reduce the error further.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005293","usgsCitation":"Eng, K., and Milly, P., 2007, Relating low‐flow characteristics to the base flow recession time constant at partial record stream gauges: Water Resources Research, v. 43, no. 1, Article W01201; 8 p., https://doi.org/10.1029/2006WR005293.","productDescription":"Article W01201; 8 p.","costCenters":[],"links":[{"id":477172,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006wr005293","text":"Publisher Index Page"},{"id":242774,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-01-05","publicationStatus":"PW","scienceBaseUri":"50e4a626e4b0e8fec6cdc0e3","contributors":{"authors":[{"text":"Eng, Ken 0000-0001-6838-5849 keng@usgs.gov","orcid":"https://orcid.org/0000-0001-6838-5849","contributorId":3580,"corporation":false,"usgs":true,"family":"Eng","given":"Ken","email":"keng@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":435031,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Milly, P. C. D.","contributorId":100489,"corporation":false,"usgs":true,"family":"Milly","given":"P. C. D.","affiliations":[],"preferred":false,"id":435032,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032204,"text":"70032204 - 2007 - Evaluation of seven aquatic sampling methods for amphibians and other aquatic fauna","interactions":[],"lastModifiedDate":"2012-03-12T17:21:28","indexId":"70032204","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":837,"text":"Applied Herpetology","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of seven aquatic sampling methods for amphibians and other aquatic fauna","docAbstract":"To design effective and efficient research and monitoring programs researchers must have a thorough understanding of the capabilities and limitations of their sampling methods. Few direct comparative studies exist for aquatic sampling methods for amphibians. The objective of this study was to simultaneously employ seven aquatic sampling methods in 10 wetlands to compare amphibian species richness and number of individuals detected with each method. Four sampling methods allowed counts of individuals (metal dipnet, D-frame dipnet, box trap, crayfish trap), whereas the other three methods allowed detection of species (visual encounter, aural, and froglogger). Amphibian species richness was greatest with froglogger, box trap, and aural samples. For anuran species, the sampling methods by which each life stage was detected was related to relative length of larval and breeding periods and tadpole size. Detection probability of amphibians varied across sampling methods. Box trap sampling resulted in the most precise amphibian count, but the precision of all four count-based methods was low (coefficient of variation > 145 for all methods). The efficacy of the four count sampling methods at sampling fish and aquatic invertebrates was also analyzed because these predatory taxa are known to be important predictors of amphibian habitat distribution. Species richness and counts were similar for fish with the four methods, whereas invertebrate species richness and counts were greatest in box traps. An effective wetland amphibian monitoring program in the southeastern United States should include multiple sampling methods to obtain the most accurate assessment of species community composition at each site. The combined use of frogloggers, crayfish traps, and dipnets may be the most efficient and effective amphibian monitoring protocol. ?? 2007 Brill Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Herpetology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1163/157075407779766750","issn":"15707539","usgsCitation":"Gunzburger, M., 2007, Evaluation of seven aquatic sampling methods for amphibians and other aquatic fauna: Applied Herpetology, v. 4, no. 1, p. 47-63, https://doi.org/10.1163/157075407779766750.","startPage":"47","endPage":"63","numberOfPages":"17","costCenters":[],"links":[{"id":215008,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1163/157075407779766750"},{"id":242772,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0cbfe4b0c8380cd52c9d","contributors":{"authors":[{"text":"Gunzburger, M. S.","contributorId":103999,"corporation":false,"usgs":true,"family":"Gunzburger","given":"M. S.","affiliations":[],"preferred":false,"id":435028,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70032183,"text":"70032183 - 2007 - Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70032183","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming","docAbstract":"Fine-grained lacustrine, riverine and ash-fall sediments of the Shooting Iron Formation, whose late Pliocene age is established by Blancan gastropods and vertebrates, yield a pollen flora that is essentially similar in composition to the modern pollen rain in the Jackson Hole area. The Pliocene assemblage suggests a climate like that of the Jackson valley and foothills today. These spectra also resemble a Pliocene pollen flora from Yellowstone Park dated at ??? 2.02??Ma. However, the underlying Miocene Teewinot sediments differ by containing pollen of four exotic deciduous hardwoods (Tertiary relicts) that suggest a summer-moist climate, unlike that of today. The Shooting Iron sediments lie with an angular unconformity on and above the Miocene lake sediments of the Teewinot Formation. Both of these deposits probably preceded the main uplift of the Teton Range based on the absence of Precambrian clasts in the Tertiary valley deposits. Because the Pliocene floras were modern in aspect, a Plio-Pleistocene transition would be floristically imperceptible here. The sequence denotes a protracted period of relative stability of climate during Teewinot time, and a shift in vegetational state (summer-wet trees drop out) sometime between the latest Miocene and latest Pliocene. The Pliocene spectra suggest a dry, cooler climate toward the end of Shooting Iron time. ?? 2006 University of Washington.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.yqres.2006.10.006","issn":"00335894","usgsCitation":"Leopold, E.B., Liu, G., Love, J.D., and Love, D., 2007, Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming: Quaternary Research, v. 67, no. 1, p. 1-11, https://doi.org/10.1016/j.yqres.2006.10.006.","startPage":"1","endPage":"11","numberOfPages":"11","costCenters":[],"links":[{"id":242405,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214661,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.yqres.2006.10.006"}],"volume":"67","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a7c5be4b0c8380cd7993c","contributors":{"authors":[{"text":"Leopold, E. B.","contributorId":81162,"corporation":false,"usgs":true,"family":"Leopold","given":"E.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":434914,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, Gaisheng","contributorId":15158,"corporation":false,"usgs":true,"family":"Liu","given":"Gaisheng","email":"","affiliations":[],"preferred":false,"id":434911,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Love, J. D.","contributorId":64620,"corporation":false,"usgs":true,"family":"Love","given":"J.","middleInitial":"D.","affiliations":[],"preferred":false,"id":434913,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Love, D.W.","contributorId":52176,"corporation":false,"usgs":true,"family":"Love","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":434912,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032182,"text":"70032182 - 2007 - Variability of kokanee and rainbow trout food habits, distribution, and population dynamics, in an ultraoligotrophic lake with no manipulative management","interactions":[],"lastModifiedDate":"2017-11-15T09:53:25","indexId":"70032182","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Variability of kokanee and rainbow trout food habits, distribution, and population dynamics, in an ultraoligotrophic lake with no manipulative management","docAbstract":"Crater Lake is a unique environment to evaluate the ecology of introduced kokanee and rainbow trout because of its otherwise pristine state, low productivity, absence of manipulative management, and lack of lotic systems for fish spawning. Between 1986 and 2004, kokanee displayed a great deal of variation in population demographics with a pattern that reoccurred in about 10 years. We believe that the reoccurring pattern resulted from density dependent growth, and associated changes in reproduction and abundance, driven by prey resource limitation that resulted from low lake productivity exacerbated by prey consumption when kokanee were abundant. Kokanee fed primarily on small-bodied prey from the mid-water column; whereas rainbow trout fed on large-bodied prey from the benthos and lake surface. Cladoceran zooplankton abundance may be regulated by kokanee. And kokanee growth and reproductive success may be influenced by the availability of Daphnia pulicaria, which was absent in zooplankton samples collected annually from 1990 to 1995, and after 1999. Distribution and diel migration of kokanee varied over the duration of the study and appeared to be most closely associated with prey availability, maximization of bioenergetic efficiency, and fish density. Rainbow trout were less abundant than were kokanee and exhibited less variation in population demographics, distribution, and food habits. There is some evidence that the population dynamics of rainbow trout were in-part related to the availability of kokanee as prey. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10750-006-0355-1","issn":"00188158","usgsCitation":"Buktenica, M., Girdner, S., Larson, G., and McIntire, C.D., 2007, Variability of kokanee and rainbow trout food habits, distribution, and population dynamics, in an ultraoligotrophic lake with no manipulative management: Hydrobiologia, v. 574, no. 1, p. 235-264, https://doi.org/10.1007/s10750-006-0355-1.","startPage":"235","endPage":"264","numberOfPages":"30","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":242404,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214660,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-006-0355-1"}],"volume":"574","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc139e4b08c986b32a4b7","contributors":{"authors":[{"text":"Buktenica, M.W.","contributorId":68263,"corporation":false,"usgs":true,"family":"Buktenica","given":"M.W.","affiliations":[],"preferred":false,"id":434908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Girdner, S.F.","contributorId":71773,"corporation":false,"usgs":true,"family":"Girdner","given":"S.F.","affiliations":[],"preferred":false,"id":434909,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Larson, G.L.","contributorId":103021,"corporation":false,"usgs":true,"family":"Larson","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":434910,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McIntire, C. D.","contributorId":35274,"corporation":false,"usgs":false,"family":"McIntire","given":"C.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":434907,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032180,"text":"70032180 - 2007 - Slightly weathered Exxon Valdez oil persists in Gulf of Alaska beach sediments after 16 years","interactions":[],"lastModifiedDate":"2016-06-01T15:45:39","indexId":"70032180","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Slightly weathered Exxon Valdez oil persists in Gulf of Alaska beach sediments after 16 years","docAbstract":"

Oil stranded by the 1989 Exxon Valdez spill has persisted in subsurface sediments of exposed shores for 16 years. With annualized loss rates declining from ∼68% yr-1 prior to 1992 to ∼4% yr-1 after 2001, weathering processes are retarded in both sediments and residual emulsified oil (“oil mousse”), and retention of toxic polycyclic aromatic hydrocarbons is prolonged. The n-alkanes, typically very readily oxidized by microbes, instead remain abundant in many stranded emulsified oil samples from the Gulf of Alaska. They are less abundant in Prince William Sound samples, where stranded oil was less viscous. Our results indicate that, at some locations, remaining subsurface oil may persist for decades with little change.

","language":"English","publisher":"ACS Publications","doi":"10.1021/es0620033","issn":"0013936X","usgsCitation":"Short, J., Irvine, G., Mann, D., Maselko, J., Pella, J., Lindeberg, M., Payne, J.R., Driskell, W., and Rice, S., 2007, Slightly weathered Exxon Valdez oil persists in Gulf of Alaska beach sediments after 16 years: Environmental Science & Technology, v. 41, no. 4, p. 1245-1250, https://doi.org/10.1021/es0620033.","productDescription":"6 p.","startPage":"1245","endPage":"1250","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":242368,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214626,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es0620033"}],"volume":"41","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-01-19","publicationStatus":"PW","scienceBaseUri":"505b9143e4b08c986b3197ec","contributors":{"authors":[{"text":"Short, J.W.","contributorId":65631,"corporation":false,"usgs":true,"family":"Short","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":434894,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irvine, G.V.","contributorId":97051,"corporation":false,"usgs":true,"family":"Irvine","given":"G.V.","email":"","affiliations":[],"preferred":false,"id":434897,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mann, D.H.","contributorId":23282,"corporation":false,"usgs":true,"family":"Mann","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":434892,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Maselko, J.M.","contributorId":101470,"corporation":false,"usgs":true,"family":"Maselko","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":434898,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pella, J.J.","contributorId":68550,"corporation":false,"usgs":true,"family":"Pella","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":434895,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lindeberg, M.R.","contributorId":13824,"corporation":false,"usgs":true,"family":"Lindeberg","given":"M.R.","affiliations":[],"preferred":false,"id":434891,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Payne, J. R.","contributorId":43508,"corporation":false,"usgs":true,"family":"Payne","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":434893,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Driskell, W.B.","contributorId":6675,"corporation":false,"usgs":true,"family":"Driskell","given":"W.B.","email":"","affiliations":[],"preferred":false,"id":434890,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Rice, S.D.","contributorId":87500,"corporation":false,"usgs":true,"family":"Rice","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":434896,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ]}