{"pageNumber":"408","pageRowStart":"10175","pageSize":"25","recordCount":68873,"records":[{"id":70178638,"text":"70178638 - 2017 - Informing watershed connectivity barrier prioritization decisions: A synthesis","interactions":[],"lastModifiedDate":"2018-08-10T16:32:58","indexId":"70178638","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Informing watershed connectivity barrier prioritization decisions: A synthesis","docAbstract":"<p><span>Water resources and transportation infrastructure such as dams and culverts provide countless socio-economic benefits; however, this infrastructure can also disconnect the movement of organisms, sediment, and water through river ecosystems. Trade-offs associated with these competing costs and benefits occur globally, with applications in barrier addition (e.g. dam and road construction), reengineering (e.g. culvert repair), and removal (e.g. dam removal and aging infrastructure). Barrier prioritization provides a unique opportunity to: (i) restore and reconnect potentially large habitat patches quickly and effectively and (ii) avoid impacts prior to occurrence in line with the mitigation hierarchy (i.e. avoid then minimize then mitigate). This paper synthesizes 46 watershed-scale barrier planning studies and presents a procedure to guide barrier prioritization associated with connectivity for aquatic organisms. We focus on practical issues informing prioritization studies such as available data sets, methods, techniques, and tools. We conclude with a discussion of emerging trends and issues in barrier prioritization and key opportunities for enhancing the body of knowledge.</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/rra.3021","usgsCitation":"McKay, S.K., Cooper, A.R., Diebel, M., Elkins, D., Oldford, G., Roghair, C., and Wieferich, D.J., 2017, Informing watershed connectivity barrier prioritization decisions: A synthesis: River Research and Applications, v. 33, no. 6, p. 847-862, https://doi.org/10.1002/rra.3021.","productDescription":"16 p.","startPage":"847","endPage":"862","ipdsId":"IP-071013","costCenters":[{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true}],"links":[{"id":331407,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"6","noUsgsAuthors":false,"publicationDate":"2016-03-21","publicationStatus":"PW","scienceBaseUri":"584144dbe4b04fc80e507369","contributors":{"authors":[{"text":"McKay, S. K.","contributorId":177104,"corporation":false,"usgs":false,"family":"McKay","given":"S.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":654662,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cooper, A. R.","contributorId":177105,"corporation":false,"usgs":false,"family":"Cooper","given":"A.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":654663,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Diebel, M.W.","contributorId":103465,"corporation":false,"usgs":true,"family":"Diebel","given":"M.W.","affiliations":[],"preferred":false,"id":654664,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elkins, D.","contributorId":177106,"corporation":false,"usgs":false,"family":"Elkins","given":"D.","email":"","affiliations":[],"preferred":false,"id":654665,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Oldford, G.","contributorId":177107,"corporation":false,"usgs":false,"family":"Oldford","given":"G.","email":"","affiliations":[],"preferred":false,"id":654666,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Roghair, C.","contributorId":177108,"corporation":false,"usgs":false,"family":"Roghair","given":"C.","email":"","affiliations":[],"preferred":false,"id":654667,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wieferich, Daniel J. 0000-0003-1554-7992 dwieferich@usgs.gov","orcid":"https://orcid.org/0000-0003-1554-7992","contributorId":5781,"corporation":false,"usgs":true,"family":"Wieferich","given":"Daniel","email":"dwieferich@usgs.gov","middleInitial":"J.","affiliations":[{"id":208,"text":"Core Science Analytics and Synthesis","active":true,"usgs":true}],"preferred":false,"id":654668,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70178624,"text":"70178624 - 2017 - Primary sources and toxicity of PAHs in Milwaukee-area streambed sediment","interactions":[],"lastModifiedDate":"2017-06-01T10:46:10","indexId":"70178624","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Primary sources and toxicity of PAHs in Milwaukee-area streambed sediment","docAbstract":"<p><span>High concentrations of polycyclic aromatic hydrocarbons (PAHs) in streams can be a significant stressor to aquatic organisms. To understand the likely sources and toxicity of PAHs in Milwaukee-area streams, streambed sediment samples from 40 sites and parking lot dust samples from 6 sites were analyzed for 38 parent PAHs and 25 alkylated PAHs. Diagnostic ratios, profile correlations, principal components analysis, source-receptor modeling, and mass fractions analysis were used to identify potential PAH sources to streambed sediment samples, and land-use analysis was used to relate streambed sediment PAH concentrations to different urban-related land uses. On the basis of this multiple lines-of-evidence approach, coal-tar pavement sealant was indicated as the primary source of PAHs in a majority of streambed sediment samples, contributing an estimated 77% of total PAHs to samples, on average. Comparison to the Probable Effect Concentrations and (or) the Equilibrium Partitioning Sediment Benchmark indicates that 78% of stream sediment samples are likely to cause adverse effects to benthic organisms. Laboratory toxicity tests on a 16-sample subset of the streambed sites using the amphipod </span><i>Hyalella azteca</i><span> (28-day) and the midge </span><i>Chironomus dilutus</i><span> (10-day) measured significant reductions in one or more biological endpoints, including survival, in 75% of samples, with </span><i>H. azteca</i><span> more responsive than </span><i>C. dilutus</i><span>.</span></p>","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","publisherLocation":"New York, NY","doi":"10.1002/etc.3694","usgsCitation":"Baldwin, A.K., Corsi, S., Lutz, M.A., Ingersoll, C.G., Dorman, R.A., Magruder, C., and Magruder, M., 2017, Primary sources and toxicity of PAHs in Milwaukee-area streambed sediment: Environmental Toxicology and Chemistry, v. 36, no. 6, p. 1622-1635, https://doi.org/10.1002/etc.3694.","productDescription":"14 p.","startPage":"1622","endPage":"1635","ipdsId":"IP-077436","costCenters":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"links":[{"id":470200,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/etc.3694","text":"Publisher Index Page"},{"id":331389,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","city":"Milwaukee","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.23394775390625,\n              42.88300840687993\n            ],\n            [\n              -88.23394775390625,\n              43.329173667843904\n            ],\n            [\n              -87.791748046875,\n              43.329173667843904\n            ],\n            [\n              -87.791748046875,\n              42.88300840687993\n            ],\n            [\n              -88.23394775390625,\n              42.88300840687993\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"36","issue":"6","publishingServiceCenter":{"id":6,"text":"Columbus PSC"},"noUsgsAuthors":false,"publicationDate":"2016-11-24","publicationStatus":"PW","scienceBaseUri":"584144dce4b04fc80e507378","contributors":{"authors":[{"text":"Baldwin, Austin K. 0000-0002-6027-3823 akbaldwi@usgs.gov","orcid":"https://orcid.org/0000-0002-6027-3823","contributorId":4515,"corporation":false,"usgs":true,"family":"Baldwin","given":"Austin","email":"akbaldwi@usgs.gov","middleInitial":"K.","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true},{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":654615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Corsi, Steven R. srcorsi@usgs.gov","contributorId":131018,"corporation":false,"usgs":true,"family":"Corsi","given":"Steven R.","email":"srcorsi@usgs.gov","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":false,"id":654616,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lutz, Michelle A. malutz@usgs.gov","contributorId":131020,"corporation":false,"usgs":true,"family":"Lutz","given":"Michelle","email":"malutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":false,"id":654617,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ingersoll, Christopher G. 0000-0003-4531-5949 cingersoll@usgs.gov","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":2071,"corporation":false,"usgs":true,"family":"Ingersoll","given":"Christopher","email":"cingersoll@usgs.gov","middleInitial":"G.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":654618,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dorman, Rebecca A. 0000-0002-5748-7046","orcid":"https://orcid.org/0000-0002-5748-7046","contributorId":28522,"corporation":false,"usgs":true,"family":"Dorman","given":"Rebecca","email":"","middleInitial":"A.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":654619,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Magruder, Christopher","contributorId":35995,"corporation":false,"usgs":true,"family":"Magruder","given":"Christopher","affiliations":[],"preferred":false,"id":654620,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Magruder, Matthew","contributorId":75432,"corporation":false,"usgs":true,"family":"Magruder","given":"Matthew","affiliations":[],"preferred":false,"id":654621,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70178660,"text":"70178660 - 2017 - Observations of pockmark flow structure in Belfast Bay, Maine, Part 1: current-induced mixing","interactions":[],"lastModifiedDate":"2017-04-27T10:04:07","indexId":"70178660","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1742,"text":"Geo-Marine Letters","active":true,"publicationSubtype":{"id":10}},"title":"Observations of pockmark flow structure in Belfast Bay, Maine, Part 1: current-induced mixing","docAbstract":"<p><span>Field observations of current profiles and temperature, salinity, and density structure were used to examine vertical mixing within two pockmarks in Belfast Bay, Maine. The first is located in 21 m water depth (sea level to rim), nearly circular in shape with a 45 m rim diameter and 12 m rim-to-bottom relief. The second is located in 25 m water depth, more elongated in shape with an approximately 80 m (36 m) major (minor) axis length at the rim, and 17 m relief. Hourly averaged current profiles were acquired from bottom-mounted acoustic Doppler current profilers deployed on the rim and center of each pockmark over successive 42 h periods in July 2011. Conductivity–temperature–depth casts at the rim and center of each pockmark show warmer, fresher water in the upper water column, evidence of both active and fossil thermocline structure 5–8 m above the rim, and well-mixed water below the rim to the bottom. Vertical velocities show up- and down-welling events that extend into the depths of each pockmark. An observed temperature change at both the rim and center occurs coincident with an overturning event below the rim, and suggests active mixing of the water column into the depths of each pockmark. Vertical profiles of horizontal velocities show depth variation at both the center and rim consistent with turbulent logarithmic current boundary layers, and suggest that form drag may possibly be influencing the local flow regime. While resource limitations prevented observation of the current structure and water properties at a control site, the acquired data suggest that active mixing and overturning within the sampled pockmarks occur under typical benign conditions, and that current flows are influenced by upstream bathymetric irregularities induced by distant pockmarks.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00367-016-0472-4","usgsCitation":"Fandel, C.L., Lippmann, T.C., Irish, J.D., and Brothers, L., 2017, Observations of pockmark flow structure in Belfast Bay, Maine, Part 1: current-induced mixing: Geo-Marine Letters, v. 37, no. 1, p. 1-14, https://doi.org/10.1007/s00367-016-0472-4.","productDescription":"14 p.","startPage":"1","endPage":"14","ipdsId":"IP-075155","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":331426,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maine","otherGeospatial":"Belfast Bay","volume":"37","issue":"1","noUsgsAuthors":false,"publicationDate":"2016-10-05","publicationStatus":"PW","scienceBaseUri":"584144dae4b04fc80e507355","contributors":{"authors":[{"text":"Fandel, Christina L.","contributorId":177119,"corporation":false,"usgs":false,"family":"Fandel","given":"Christina","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":654737,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lippmann, Thomas C.","contributorId":177120,"corporation":false,"usgs":false,"family":"Lippmann","given":"Thomas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":654738,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Irish, James D.","contributorId":177134,"corporation":false,"usgs":false,"family":"Irish","given":"James","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":654739,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brothers, Laura L. lbrothers@usgs.gov","contributorId":4502,"corporation":false,"usgs":true,"family":"Brothers","given":"Laura L.","email":"lbrothers@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":654740,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70178652,"text":"70178652 - 2017 - Observations of pockmark flow structure in Belfast Bay, Maine, Part 3: implications for sediment transport","interactions":[],"lastModifiedDate":"2017-04-27T10:06:39","indexId":"70178652","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1742,"text":"Geo-Marine Letters","active":true,"publicationSubtype":{"id":10}},"title":"Observations of pockmark flow structure in Belfast Bay, Maine, Part 3: implications for sediment transport","docAbstract":"<p>Current observations and sediment characteristics acquired within and along the rim of two pockmarks in Belfast Bay, Maine, were used to characterize periods of sediment transport and to investigate conditions favorable to the settling of suspended sediment. Hourly averaged Shields parameters determined from horizontal current velocity profiles within the center of each pockmark never exceed the critical value (approximated with the theoretical model of Dade et al. 1992). However, Shields parameters estimated at the pockmark rims periodically exceed the critical value, consistent with conditions that support the onset of sediment transport and suspension. Below the rim in the near-center of each pockmark, depth-averaged vertical velocities were less than zero (downward) 60% and 55% of the time in the northern and southern pockmarks, and were often comparable to depth-averaged horizontal velocities. Along the rim, depth-averaged vertical velocities over the lower 8 m of the water column were primarily downward but much less than depth-averaged horizontal velocities indicating that suspended sediment may be moved to distant locations. Maximum grain sizes capable of remaining in suspension under terminal settling flow conditions (ranging 10–170 μm) were typically much greater than the observed median grain diameter (about 7 μm) at the bed. During upwelling flow within the pockmarks, and in the absence of flocculation, suspended sediment would not settle. The greater frequency of predicted periods of sediment transport along the rim of the southern pockmark is consistent with pockmark morphology in Belfast Bay, which transitions from more spherical to more elongated toward the south, suggesting near-bed sediment transport may contribute to post-formation pockmark evolution during typical conditions in Belfast Bay.</p>","language":"English","publisher":"Springer","doi":"10.1007/s00367-016-0474-2","usgsCitation":"Fandel, C.L., Lippmann, T.C., Foster, D.L., and Brothers, L., 2017, Observations of pockmark flow structure in Belfast Bay, Maine, Part 3: implications for sediment transport: Geo-Marine Letters, v. 37, no. 1, p. 23-34, https://doi.org/10.1007/s00367-016-0474-2.","productDescription":"12 p.","startPage":"23","endPage":"34","ipdsId":"IP-075157","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":331422,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maine","otherGeospatial":"Belfast Bay","volume":"37","issue":"1","noUsgsAuthors":false,"publicationDate":"2016-10-04","publicationStatus":"PW","scienceBaseUri":"584144dae4b04fc80e50735d","contributors":{"authors":[{"text":"Fandel, Christina L.","contributorId":177119,"corporation":false,"usgs":false,"family":"Fandel","given":"Christina","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":654720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lippmann, Thomas C.","contributorId":177120,"corporation":false,"usgs":false,"family":"Lippmann","given":"Thomas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":654721,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foster, Diane L.","contributorId":177121,"corporation":false,"usgs":false,"family":"Foster","given":"Diane","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":654722,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brothers, Laura L. lbrothers@usgs.gov","contributorId":4502,"corporation":false,"usgs":true,"family":"Brothers","given":"Laura L.","email":"lbrothers@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":654723,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70189107,"text":"70189107 - 2017 - A comprehensive survey of faults, breccias, and fractures in and flanking the eastern Española Basin, Rio Grande rift, New Mexico","interactions":[],"lastModifiedDate":"2017-10-02T12:43:33","indexId":"70189107","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"A comprehensive survey of faults, breccias, and fractures in and flanking the eastern Española Basin, Rio Grande rift, New Mexico","docAbstract":"<p><span>A comprehensive survey of geologic structures formed in the Earth’s brittle regime in the eastern Española Basin and flank of the Rio Grande rift, New Mexico, reveals a complex and protracted record of multiple tectonic events. Data and analyses from this representative rift flank-basin pair include measurements from 53 individual fault zones and 22 other brittle structures, such as breccia zones, joints, and veins, investigated at a total of just over 100 sites. Structures were examined and compared in poorly lithified Tertiary sediments, as well as in Paleozoic sedimentary and Proterozoic crystalline rocks. Data and analyses include geologic maps; field observations and measurements; orientation, kinematic, and paleostress analyses; statistical examination of fault trace lengths derived from aeromagnetic data; mineralogy and chemistry of host and fault rocks; and investigation of fault versus bolide-impact hypotheses for the origin of enigmatic breccias found in the Proterozoic basement rocks. Fault kinematic and paleostress analyses suggest a record of transitional, and perhaps partitioned, strains from the Laramide orogeny through Rio Grande rifting. Normal faults within Tertiary basin-fill sediments are consistent with more typical WNW-ESE Rio Grande rift extension, perhaps decoupled from bedrock structures due to strength contrasts favoring the formation of new faults in the relatively weak sediments. Analyses of the fault-length data indicate power-law length distributions similar to those reported from many geologic settings globally. Mineralogy and chemistry in Proterozoic fault-related rocks reveal geochemical changes tied to hydrothermal alteration and nearly isochemical transformation of feldspars to clay minerals. In sediments, faulted minerals are characterized by mechanical entrainment with minor secondary chemical changes. Enigmatic breccias in rift-flanking Proterozoic rocks are autoclastic and isochemical with respect to their protoliths and exist near shatter cones believed to be related to a previously reported pre-Pennsylvanian impact event. A weak iridium anomaly is associated with the breccias as well as adjacent protoliths, thus an impact shock wave cannot be ruled out for their origin. Major fault zones along the eastern rift-flank mountain front are discontinuous and unlikely to impede regional groundwater flow into Española Basin aquifers. The breccia bodies are not large enough to constitute aquifers, and no fault- or breccia-related geochemical anomalies were identified as potential contamination sources for ground or surface waters. The results of this work provide a broad picture of structural diversity and tectonic evolution along the eastern flank of the central Rio Grande rift and the adjacent Española Basin representative of the rift as a whole and many rifts worldwide.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/GES01348.1","usgsCitation":"Caine, J.S., Minor, S.A., Grauch, V.J., Budahn, J.R., and Keren, T.T., 2017, A comprehensive survey of faults, breccias, and fractures in and flanking the eastern Española Basin, Rio Grande rift, New Mexico: Geosphere, v. 13, p. 1566-1609, https://doi.org/10.1130/GES01348.1.","productDescription":"43 p.","startPage":"1566","endPage":"1609","ipdsId":"IP-072811","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":470199,"rank":3,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges01348.1","text":"Publisher Index Page"},{"id":343179,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":346150,"rank":2,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7222RXW","text":"Data for a comprehensive survey of fault zones, breccias, and fractures in and flanking the eastern Española Basin, Rio Grande Rift, New Mexico"}],"country":"United States","state":"New Mexico","otherGeospatial":"Española Basin, Rio Grande Rift","volume":"13","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2017-08-09","publicationStatus":"PW","scienceBaseUri":"595611b6e4b0d1f9f0506760","contributors":{"authors":[{"text":"Caine, Jonathan S. 0000-0002-7269-6989 jscaine@usgs.gov","orcid":"https://orcid.org/0000-0002-7269-6989","contributorId":1272,"corporation":false,"usgs":true,"family":"Caine","given":"Jonathan","email":"jscaine@usgs.gov","middleInitial":"S.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":false,"id":702908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Minor, Scott A. 0000-0002-6976-9235 sminor@usgs.gov","orcid":"https://orcid.org/0000-0002-6976-9235","contributorId":765,"corporation":false,"usgs":true,"family":"Minor","given":"Scott","email":"sminor@usgs.gov","middleInitial":"A.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":702909,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grauch, V. J. S. 0000-0002-0761-3489 tien@usgs.gov","orcid":"https://orcid.org/0000-0002-0761-3489","contributorId":886,"corporation":false,"usgs":true,"family":"Grauch","given":"V.","email":"tien@usgs.gov","middleInitial":"J. S.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":702910,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Budahn, James R. 0000-0001-9794-8882","orcid":"https://orcid.org/0000-0001-9794-8882","contributorId":177797,"corporation":false,"usgs":false,"family":"Budahn","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":702911,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Keren, Tucker T. 0000-0003-0208-0086","orcid":"https://orcid.org/0000-0003-0208-0086","contributorId":177798,"corporation":false,"usgs":false,"family":"Keren","given":"Tucker","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":702912,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70178587,"text":"70178587 - 2017 - Estuary-ocean connectivity: Fast physics, slow biology","interactions":[],"lastModifiedDate":"2017-10-30T09:42:45","indexId":"70178587","displayToPublicDate":"2016-11-30T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1837,"text":"Global Change Biology","active":true,"publicationSubtype":{"id":10}},"title":"Estuary-ocean connectivity: Fast physics, slow biology","docAbstract":"<p><span>Estuaries are connected to both land and ocean so their physical, chemical, and biological dynamics are influenced by climate patterns over watersheds and ocean basins. We explored climate-driven oceanic variability as a source of estuarine variability by comparing monthly time series of temperature and chlorophyll-</span><i>a</i><span> inside San Francisco Bay with those in adjacent shelf waters of the California Current System (CCS) that are strongly responsive to wind-driven upwelling. Monthly temperature fluctuations inside and outside the Bay were synchronous, but their correlations weakened with distance from the ocean. These results illustrate how variability of coastal water temperature (and associated properties such as nitrate and oxygen) propagates into estuaries through fast water exchanges that dissipate along the estuary. Unexpectedly, there was no correlation between monthly chlorophyll-</span><i>a</i><span> variability inside and outside the Bay. However, at the annual scale Bay chlorophyll-</span><i>a</i><span> was significantly correlated with the Spring Transition Index (STI) that sets biological production supporting fish recruitment in the CCS. Wind forcing of the CCS shifted in the late 1990s when the STI advanced 40&nbsp;days. This shift was followed, with lags of 1–3&nbsp;years, by 3- to 19-fold increased abundances of five ocean-produced demersal fish and crustaceans and 2.5-fold increase of summer chlorophyll-</span><i>a</i><span> in the Bay. These changes reflect a slow biological process of estuary–ocean connectivity operating through the immigration of fish and crustaceans that prey on bivalves, reduce their grazing pressure, and allow phytoplankton biomass to build. We identified clear signals of climate-mediated oceanic variability in this estuary and discovered that the response patterns vary with the process of connectivity and the timescale of ocean variability. This result has important implications for managing nutrient inputs to estuaries connected to upwelling systems, and for assessing their responses to changing patterns of upwelling timing and intensity as the planet continues to warm.</span></p>","language":"English","publisher":"Blackwell Science","doi":"10.1111/gcb.13546","usgsCitation":"Raimonet, M., and Cloern, J.E., 2017, Estuary-ocean connectivity: Fast physics, slow biology: Global Change Biology, v. 23, no. 6, p. 2345-2357, https://doi.org/10.1111/gcb.13546.","productDescription":"13 p.","startPage":"2345","endPage":"2357","ipdsId":"IP-071221","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true}],"links":[{"id":331313,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Central Bay, San Francisco Bay, South Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122,\n              37.5\n            ],\n            [\n              -122,\n              38\n            ],\n            [\n              -123,\n              38\n            ],\n            [\n              -123,\n              37.5\n            ],\n            [\n              -122,\n              37.5\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"23","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2016-11-29","publicationStatus":"PW","scienceBaseUri":"583ff34ae4b04fc80e437250","contributors":{"authors":[{"text":"Raimonet, Melanie mraimonet@usgs.gov","contributorId":5730,"corporation":false,"usgs":true,"family":"Raimonet","given":"Melanie","email":"mraimonet@usgs.gov","affiliations":[],"preferred":false,"id":654480,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cloern, James E. 0000-0002-5880-6862 jecloern@usgs.gov","orcid":"https://orcid.org/0000-0002-5880-6862","contributorId":1488,"corporation":false,"usgs":true,"family":"Cloern","given":"James","email":"jecloern@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":654474,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70178564,"text":"70178564 - 2017 - Contribution of manipulable and non-manipulable environmental factors to trapping efficiency of invasive sea lamprey","interactions":[],"lastModifiedDate":"2017-01-27T11:24:54","indexId":"70178564","displayToPublicDate":"2016-11-30T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Contribution of manipulable and non-manipulable environmental factors to trapping efficiency of invasive sea lamprey","docAbstract":"<p><span>We identified aspects of the trapping process that afforded opportunities for improving trap efficiency of invasive sea lamprey (</span><i>Petromyzon marinus</i><span>) in a Great Lake's tributary. Capturing a sea lamprey requires it to encounter the trap, enter, and be retained until removed. Probabilities of these events depend on the interplay between sea lamprey behavior, environmental conditions, and trap design. We first tested how strongly seasonal patterns in daily trap catches (a measure of trapping success) were related to nightly rates of trap encounter, entry, and retention (outcomes of sea lamprey behavior). We then tested the degree to which variation in rates of trap encounter, entry, and retention were related to environmental features that control agents can manipulate (attractant pheromone addition, discharge) and features agents cannot manipulate (water temperature, season), but could be used as indicators for when to increase trapping effort. Daily trap catch was most strongly associated with rate of encounter. Relative and absolute measures of predictive strength for environmental factors that managers could potentially manipulate were low, suggesting that opportunities to improve trapping success by manipulating factors that affect rates of encounter, entry, and retention are limited. According to results at this trap, more sea lamprey would be captured by increasing trapping effort early in the season when sea lamprey encounter rates with traps are high. The approach used in this study could be applied to trapping of other invasive or valued species.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jglr.2016.10.009","usgsCitation":"Dawson, H.A., Bravener, G., Beaulaurier, J., Johnson, N.S., Twohey, M., McLaughlin, R.L., and Brenden, T.O., 2017, Contribution of manipulable and non-manipulable environmental factors to trapping efficiency of invasive sea lamprey: Journal of Great Lakes Research, v. 43, no. 1, p. 172-181, https://doi.org/10.1016/j.jglr.2016.10.009.","productDescription":"10 p.","startPage":"172","endPage":"181","ipdsId":"IP-079967","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":331361,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"1","publishingServiceCenter":{"id":6,"text":"Columbus PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"583ff34ae4b04fc80e437254","contributors":{"authors":[{"text":"Dawson, Heather A.","contributorId":12409,"corporation":false,"usgs":true,"family":"Dawson","given":"Heather","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":654557,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bravener, Gale","contributorId":150995,"corporation":false,"usgs":false,"family":"Bravener","given":"Gale","affiliations":[{"id":13677,"text":"Fisheries and Oceans Canada","active":true,"usgs":false}],"preferred":false,"id":654558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beaulaurier, Joshua","contributorId":87431,"corporation":false,"usgs":true,"family":"Beaulaurier","given":"Joshua","email":"","affiliations":[],"preferred":false,"id":654559,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, Nicholas S. njohnson@usgs.gov","contributorId":145440,"corporation":false,"usgs":true,"family":"Johnson","given":"Nicholas","email":"njohnson@usgs.gov","middleInitial":"S.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":654560,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Twohey, Michael","contributorId":80170,"corporation":false,"usgs":true,"family":"Twohey","given":"Michael","affiliations":[],"preferred":false,"id":654561,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McLaughlin, Robert L.","contributorId":143707,"corporation":false,"usgs":false,"family":"McLaughlin","given":"Robert","email":"","middleInitial":"L.","affiliations":[{"id":12660,"text":"University of Guelph","active":true,"usgs":false}],"preferred":false,"id":654562,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Brenden, Travis O.","contributorId":126759,"corporation":false,"usgs":false,"family":"Brenden","given":"Travis","email":"","middleInitial":"O.","affiliations":[{"id":6596,"text":"Quantitative Fisheries Center, Department of Fisheries and Wildlife Michigan State University","active":true,"usgs":false}],"preferred":false,"id":654563,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70178550,"text":"70178550 - 2017 - A computational fluid dynamics modeling study of guide walls for downstream fish passage","interactions":[],"lastModifiedDate":"2016-11-28T10:40:51","indexId":"70178550","displayToPublicDate":"2016-11-28T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"A computational fluid dynamics modeling study of guide walls for downstream fish passage","docAbstract":"<p><span>A partial-depth, impermeable guidance structure (or guide wall) for downstream fish passage is typically constructed as a series of panels attached to a floating boom and anchored across a water body (e.g. river channel, reservoir, or power canal). The downstream terminus of the wall is generally located nearby to a fish bypass structure. If guidance is successful, the fish will avoid entrainment in a dangerous intake structure (i.e. turbine intakes) while passing from the headpond to the tailwater of a hydroelectric facility through a safer passage route (i.e. the bypass). The goal of this study is to determine the combination of guide wall design parameters that will most likely increase the chance of surface-oriented fish being successfully guided to the bypass. To evaluate the flow field immediately upstream of a guide wall, a parameterized computational fluid dynamics model of an idealized power canal was constructed in © ANSYS Fluent v 14.5 (ANSYS Inc., 2012). The design parameters investigated were the angle and depth of the guide wall and the average approach velocity in the power canal. Results call attention to the importance of the downward to sweeping flow ratio and demonstrate how a change in guide wall depth and angle can affect this important hydraulic cue to out-migrating fish. The key findings indicate that a guide wall set at a small angle (15° is the minimum in this study) and deep enough such that sweeping flow dominant conditions prevail within the expected vertical distribution of fish approaching the structure will produce hydraulic conditions that are more likely to result in effective passage.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoleng.2016.11.025","usgsCitation":"Mulligan, K., Towler, B., Haro, A.J., and Ahlfeld, D.P., 2017, A computational fluid dynamics modeling study of guide walls for downstream fish passage: Ecological Engineering, v. 99, p. 324-332, https://doi.org/10.1016/j.ecoleng.2016.11.025.","productDescription":"9 p.","startPage":"324","endPage":"332","ipdsId":"IP-080297","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":470201,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://www.osti.gov/biblio/1533720","text":"Publisher Index Page"},{"id":331236,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"99","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"583d5027e4b0d9329c80c58b","contributors":{"authors":[{"text":"Mulligan, Kevin B. 0000-0002-3534-4239 kmulligan@usgs.gov","orcid":"https://orcid.org/0000-0002-3534-4239","contributorId":177024,"corporation":false,"usgs":true,"family":"Mulligan","given":"Kevin","email":"kmulligan@usgs.gov","middleInitial":"B.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":654327,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Towler, Brett","contributorId":141164,"corporation":false,"usgs":false,"family":"Towler","given":"Brett","email":"","affiliations":[{"id":6927,"text":"USFWS, National Wildlife Refuge System","active":true,"usgs":false}],"preferred":false,"id":654328,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haro, Alexander J. 0000-0002-7188-9172 aharo@usgs.gov","orcid":"https://orcid.org/0000-0002-7188-9172","contributorId":2917,"corporation":false,"usgs":true,"family":"Haro","given":"Alexander","email":"aharo@usgs.gov","middleInitial":"J.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":654329,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ahlfeld, David P.","contributorId":49464,"corporation":false,"usgs":true,"family":"Ahlfeld","given":"David","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":654330,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70178441,"text":"70178441 - 2017 - Rare earth element behavior during groundwater – seawater mixing along the Kona Coast of Hawaii","interactions":[],"lastModifiedDate":"2016-12-09T16:04:19","indexId":"70178441","displayToPublicDate":"2016-11-21T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Rare earth element behavior during groundwater – seawater mixing along the Kona Coast of Hawaii","docAbstract":"<p><span>Groundwater and seawater samples were collected from nearshore wells and offshore along the Kona Coast of the Big Island of Hawaii to investigate rare earth element (REE) behavior in local subterranean estuaries. Previous investigations showed that submarine groundwater discharge (SGD) is the predominant flux of terrestrial waters to the coastal ocean along the arid Kona Coast of Hawaii. Groundwater and seawater samples were filtered through 0.45 μm and 0.02 μm pore-size filters to evaluate the importance of colloidal and soluble (i.e., truly dissolved ionic species and/or low molecular weight [LMW] colloids) fractions of the REEs in the local subterranean estuaries. Mixing experiments using groundwater collected immediately down gradient from a wastewater treatment facility (WWTF) proximal to the Kaloko-Hanokohau National Historic Park, and more “pristine” groundwater from a well constructed in a lava tube at Kiholo Bay, were mixed with local seawater to study the effect of solution composition (i.e., pH, salinity) on the concentrations and fractionation behavior of the REEs as groundwater mixes with seawater in Kona Coast subterranean estuaries. The mixed waters were also filtered through 0.45 or 0.02 μm filters to ascertain the behavior of colloidal and soluble fractions of the REEs across the salinity gradient in each mixing experiment. Concentrations of the REEs were statistically identical (two-tailed Student </span><i>t</i><span>-test, 95% confidence) between the sequentially filtered sample aliquots, indicating that the REEs occur as dissolved ionic species and/or LMW colloids in Kona Coast groundwaters. The mixing experiments revealed that the REEs are released to solution from suspended particles or colloids when Kona Coast groundwater waters mix with local seawater. The order of release that accompanies increasing pH and salinity follows light REE (LREE) &gt; middle REE (MREE) &gt; heavy REE (HREE). Release of REEs in the mixing experiments is driven by decreases in the free metal ion activity in solution and the concomitant increase in the amount of each REE that occurs in solution as dicarbonato complexes [i.e., Ln(CO</span><sub>3</sub><span>)</span><sub>2</sub><sup>-</sup><span>] as pH increases across the salinity gradient. Input-normalized REE patterns of Kona Coast groundwater and coastal seawater are nearly identical and relatively flat compared to North Pacific seawater, indicating that SGD is the chief source of these trace elements to the ocean along the Kona Coast. Additionally, REE concentrations of the coastal seawater are between 10 and 50 times higher than previously reported open-ocean seawater values from the North Pacific, further demonstrating the importance of SGD fluxes of REEs to these coastal waters. Taken together, these observations indicate that large-scale removal of REEs, which characterizes the behavior of REEs in the low salinity reaches of many surface estuaries, is not a feature of the subterranean estuary along the Kona Coast. A large positive gadolinium (Gd) anomaly characterizes groundwater from the vicinity of the WWTF. The positive Gd anomaly can be traced to the coastal ocean, providing further evidence of the impact of SGD on the coastal waters. Estimates of the SGD fluxes of the REEs to the coastal ocean along the Kona Coast (i.e., 1.3 – 2.6 mmol Nd day</span><sup>-1</sup><span>) are similar to recent estimates of SGD fluxes of REEs along Florida’s east coast and to Rhode Island Sound, all of which points to the importance of SGD as significant flux of REEs to the coastal ocean.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2016.11.009","usgsCitation":"Johannesson, K., Palmore, C.D., Fackrell, J., Prouty, N.G., Swarzenski, P.W., Chevis, D.A., Telfeyan, K., White, C.D., and Burdige, D.J., 2017, Rare earth element behavior during groundwater – seawater mixing along the Kona Coast of Hawaii: Geochimica et Cosmochimica Acta, v. 198, p. 229-258, https://doi.org/10.1016/j.gca.2016.11.009.","productDescription":"30 p.","startPage":"229","endPage":"258","ipdsId":"IP-075252","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":461823,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://www.osti.gov/biblio/1416299","text":"Publisher Index Page"},{"id":331169,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kona Coast","volume":"198","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"583415b2e4b0070c0abed81e","contributors":{"authors":[{"text":"Johannesson, Karen H.","contributorId":150171,"corporation":false,"usgs":false,"family":"Johannesson","given":"Karen H.","affiliations":[{"id":13500,"text":"Tulane University","active":true,"usgs":false}],"preferred":false,"id":654087,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Palmore, C. Dianne","contributorId":176964,"corporation":false,"usgs":false,"family":"Palmore","given":"C.","email":"","middleInitial":"Dianne","affiliations":[],"preferred":false,"id":654094,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fackrell, Joseph","contributorId":150170,"corporation":false,"usgs":false,"family":"Fackrell","given":"Joseph","affiliations":[{"id":13351,"text":"University of Hawaii Cooperative Studies Unit","active":true,"usgs":false}],"preferred":false,"id":654088,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Prouty, Nancy G. 0000-0002-8922-0688 nprouty@usgs.gov","orcid":"https://orcid.org/0000-0002-8922-0688","contributorId":3350,"corporation":false,"usgs":true,"family":"Prouty","given":"Nancy","email":"nprouty@usgs.gov","middleInitial":"G.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":654086,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swarzenski, Peter W. 0000-0003-0116-0578 pswarzen@usgs.gov","orcid":"https://orcid.org/0000-0003-0116-0578","contributorId":1070,"corporation":false,"usgs":true,"family":"Swarzenski","given":"Peter","email":"pswarzen@usgs.gov","middleInitial":"W.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":654089,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chevis, Darren A.","contributorId":176960,"corporation":false,"usgs":false,"family":"Chevis","given":"Darren","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":654090,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Telfeyan, Katherine","contributorId":176961,"corporation":false,"usgs":false,"family":"Telfeyan","given":"Katherine","email":"","affiliations":[],"preferred":false,"id":654091,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"White, Christopher D.","contributorId":176962,"corporation":false,"usgs":false,"family":"White","given":"Christopher","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":654092,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Burdige, David J.","contributorId":176963,"corporation":false,"usgs":false,"family":"Burdige","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":654093,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70181028,"text":"70181028 - 2017 - Patterns and drivers for wetland connections in the Prairie Pothole Region, United States","interactions":[],"lastModifiedDate":"2017-06-01T10:24:44","indexId":"70181028","displayToPublicDate":"2016-11-18T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3751,"text":"Wetlands Ecology and Management","active":true,"publicationSubtype":{"id":10}},"title":"Patterns and drivers for wetland connections in the Prairie Pothole Region, United States","docAbstract":"<p><span>Ecosystem function in rivers, lakes and coastal waters depends on the functioning of upstream aquatic ecosystems, necessitating an improved understanding of watershed-scale interactions including variable surface-water flows between wetlands and streams. As surface water in the Prairie Pothole Region expands in wet years, surface-water connections occur between many depressional wetlands and streams. Minimal research has explored the spatial patterns and drivers for the abundance of these connections, despite their potential to inform resource management and regulatory programs including the U.S. Clean Water Act. In this study, wetlands were identified that did not intersect the stream network, but were shown with Landsat images (1990–2011) to become merged with the stream network as surface water expanded. Wetlands were found to spill into or consolidate with other wetlands within both small (2–10 wetlands) and large (&gt;100 wetlands) wetland clusters, eventually intersecting a stream channel, most often via a riparian wetland. These surface-water connections occurred over a wide range of wetland distances from streams (averaging 90–1400&nbsp;m in different ecoregions). Differences in the spatial abundance of wetlands that show a variable surface-water connection to a stream were best explained by smaller wetland-to-wetland distances, greater wetland abundance, and maximum surface-water extent. This analysis demonstrated that wetland arrangement and surface water expansion are important mechanisms for depressional wetlands to connect to streams and provides a first step to understanding the frequency and abundance of these surface-water connections across the Prairie Pothole Region.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s11273-016-9516-9","usgsCitation":"Vanderhoof, M.K., Christensen, J.R., and Alexander, L., 2017, Patterns and drivers for wetland connections in the Prairie Pothole Region, United States: Wetlands Ecology and Management, v. 25, no. 3, p. 275-297, https://doi.org/10.1007/s11273-016-9516-9.","productDescription":"23 p.","startPage":"275","endPage":"297","ipdsId":"IP-069163","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":470204,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s11273-016-9516-9","text":"Publisher Index Page"},{"id":335162,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota, North Dakota, South Dakota","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -100.052490234375,\n              46.475699386607516\n            ],\n            [\n              -100.052490234375,\n              48.785151998043155\n            ],\n            [\n              -97.61352539062499,\n              48.785151998043155\n            ],\n            [\n              -97.61352539062499,\n              46.475699386607516\n            ],\n            [\n              -100.052490234375,\n              46.475699386607516\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -98.23974609375,\n              43.8028187190472\n            ],\n            [\n              -98.23974609375,\n              46.027481852486645\n            ],\n            [\n              -94.8779296875,\n              46.027481852486645\n            ],\n            [\n              -94.8779296875,\n              43.8028187190472\n            ],\n            [\n              -98.23974609375,\n              43.8028187190472\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"25","issue":"3","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2016-11-19","publicationStatus":"PW","scienceBaseUri":"589fff06e4b099f50d3e0449","contributors":{"authors":[{"text":"Vanderhoof, Melanie K. 0000-0002-0101-5533 mvanderhoof@usgs.gov","orcid":"https://orcid.org/0000-0002-0101-5533","contributorId":168395,"corporation":false,"usgs":true,"family":"Vanderhoof","given":"Melanie","email":"mvanderhoof@usgs.gov","middleInitial":"K.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":663374,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christensen, Jay R.","contributorId":179361,"corporation":false,"usgs":false,"family":"Christensen","given":"Jay","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":663375,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alexander, Laurie C.","contributorId":138989,"corporation":false,"usgs":false,"family":"Alexander","given":"Laurie C.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":663376,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70178352,"text":"70178352 - 2017 - Endocrine active contaminants in aquatic systems and intersex in common sport fishes","interactions":[],"lastModifiedDate":"2017-03-29T15:10:50","indexId":"70178352","displayToPublicDate":"2016-11-15T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Endocrine active contaminants in aquatic systems and intersex in common sport fishes","docAbstract":"<p><span>Male fish are susceptible to developing intersex, a condition characterized by the presence of testicular oocytes. In the present study, the relationship between intersex and exposure to estrogenic endocrine active contaminants (EACs) was assessed for 2 genera of sport fish, </span><i>Micropterus</i><span> and </span><i>Lepomis</i><span>, at 20 riverine sites. Seasonal trends and relationships between EACs and intersex (prevalence and severity) were examined at varying putative sources of EACs throughout North Carolina, identified as point sources, nonpoint sources, and reference sites. Intersex was identified in both genera, which was documented for the first time in wild-caught </span><i>Lepomis</i><span>. Intersex was more prevalent (59.8%) and more severe (1.6 mean rank) in </span><i>Micropterus</i><span>, which was highly correlation to EACs in sediment. In contrast, intersex was less common (9.9%) and less severe (0.2 mean rank) in </span><i>Lepomis</i><span> and was highly correlated to EACs in the water column. The authors found that concentrations of polycyclic aromatic hydrocarbons, polychlorinated biphenyls, industrial EACs, and estrogens were highest at point source sites; however, no source type variation was identified in the prevalence or severity of intersex, nor were there seasonal trends in intersex or EAC concentrations. The authors’ results associate genus-specific prevalence of intersex with specific EAC classes in common sport fishes having biological, ecological, and conservation implications. </span></p>","language":"English","publisher":"Wiley","doi":"10.1002/etc.3607","usgsCitation":"Lee Pow, C.S., Law, J.M., Kwak, T.J., Cope, W., Rice, J., Kullman, S.W., and Aday, D.D., 2017, Endocrine active contaminants in aquatic systems and intersex in common sport fishes: Environmental Toxicology and Chemistry, v. 36, no. 4, p. 959-968, https://doi.org/10.1002/etc.3607.","startPage":"959","endPage":"968","ipdsId":"IP-077886","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":331013,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"4","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2016-09-01","publicationStatus":"PW","scienceBaseUri":"582c2ce4e4b0c253be072bfe","contributors":{"authors":[{"text":"Lee Pow, Crystal S. D.","contributorId":176861,"corporation":false,"usgs":false,"family":"Lee Pow","given":"Crystal","email":"","middleInitial":"S. D.","affiliations":[],"preferred":false,"id":653831,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Law, J. Mac","contributorId":176862,"corporation":false,"usgs":false,"family":"Law","given":"J.","email":"","middleInitial":"Mac","affiliations":[],"preferred":false,"id":653832,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kwak, Thomas J. 0000-0002-0616-137X tkwak@usgs.gov","orcid":"https://orcid.org/0000-0002-0616-137X","contributorId":834,"corporation":false,"usgs":true,"family":"Kwak","given":"Thomas","email":"tkwak@usgs.gov","middleInitial":"J.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":653750,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cope, W. Gregory","contributorId":70353,"corporation":false,"usgs":true,"family":"Cope","given":"W. Gregory","affiliations":[],"preferred":false,"id":653833,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rice, James A.","contributorId":176863,"corporation":false,"usgs":false,"family":"Rice","given":"James A.","affiliations":[],"preferred":false,"id":653834,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kullman, Seth W.","contributorId":62516,"corporation":false,"usgs":true,"family":"Kullman","given":"Seth","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":653835,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Aday, D. Derek","contributorId":176864,"corporation":false,"usgs":false,"family":"Aday","given":"D.","email":"","middleInitial":"Derek","affiliations":[],"preferred":false,"id":653836,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70178324,"text":"70178324 - 2017 - Removing sun glint from optical remote sensing images of shallow rivers","interactions":[],"lastModifiedDate":"2017-02-02T11:06:27","indexId":"70178324","displayToPublicDate":"2016-11-15T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1425,"text":"Earth Surface Processes and Landforms","active":true,"publicationSubtype":{"id":10}},"title":"Removing sun glint from optical remote sensing images of shallow rivers","docAbstract":"<p><span>Sun glint is the specular reflection of light from the water surface, which often causes unusually bright pixel values that can dominate fluvial remote sensing imagery and obscure the water-leaving radiance signal of interest for mapping bathymetry, bottom type, or water column optical characteristics. Although sun glint is ubiquitous in fluvial remote sensing imagery, river-specific methods for removing sun glint are not yet available. We show that existing sun glint-removal methods developed for multispectral images of marine shallow water environments over-correct shallow portions of fluvial remote sensing imagery resulting in regions of unreliable data along channel margins. We build on existing marine glint-removal methods to develop a river-specific technique that removes sun glint from shallow areas of the channel without overcorrection by accounting for non-negligible water-leaving near-infrared radiance. This new sun glint-removal method can improve the accuracy of spectrally-based depth retrieval in cases where sun glint dominates the at-sensor radiance. For an example image of the gravel-bed Snake River, Wyoming, USA, observed-vs.-predicted </span><i>R<sup>2</sup></i><span> values for depth retrieval improved from 0.66 to 0.76 following sun glint removal. The methodology presented here is straightforward to implement and could be incorporated into image processing workflows for multispectral images that include a near-infrared band. </span></p>","language":"English","publisher":"Wiley","doi":"10.1002/esp.4063","usgsCitation":"Overstreet, B.T., and Legleiter, C.J., 2017, Removing sun glint from optical remote sensing images of shallow rivers: Earth Surface Processes and Landforms, v. 42, no. 2, p. 318-333, https://doi.org/10.1002/esp.4063.","productDescription":"16 p.","startPage":"318","endPage":"333","ipdsId":"IP-073666","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":331014,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"2","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2016-11-29","publicationStatus":"PW","scienceBaseUri":"582c2ce4e4b0c253be072c00","contributors":{"authors":[{"text":"Overstreet, Brandon T. 0000-0001-7845-6671","orcid":"https://orcid.org/0000-0001-7845-6671","contributorId":63257,"corporation":false,"usgs":true,"family":"Overstreet","given":"Brandon","email":"","middleInitial":"T.","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":false,"id":653837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Legleiter, Carl J. 0000-0003-0940-8013 cjl@usgs.gov","orcid":"https://orcid.org/0000-0003-0940-8013","contributorId":169002,"corporation":false,"usgs":true,"family":"Legleiter","given":"Carl","email":"cjl@usgs.gov","middleInitial":"J.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":653838,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70178378,"text":"70178378 - 2017 - Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004","interactions":[],"lastModifiedDate":"2017-11-22T17:05:03","indexId":"70178378","displayToPublicDate":"2016-11-14T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1480,"text":"Ecotoxicology and Environmental Safety","active":true,"publicationSubtype":{"id":10}},"title":"Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004","docAbstract":"<p><span>This telemetry study is an extension of our 1997–2006 research on historical mercury contamination on snowy egrets (</span><i>Egretta thula</i><span>) up to ~ 20 days of age. Findings from initial studies at the mercury-contaminated Carson River colony at Lahontan Reservoir (LR) and a similar-sized reference (REF) colony on the Humboldt River included mercury-related physiological, biochemical, histopathological and reproductive effects up to ~20 days of age; with poor water years (2000–04), i.e., reduced prey availability, exacerbating effects. Herein, we compare timing of dispersal and migration at LR vs. REF, but the primary question now addressed is “whether survival of young mercury-exposed snowy egrets from LR would be further compromised beyond ~20 days of age? ” Based upon telemetry signals until 90–110 days of age (including dead bird counts and survival rate estimates), we conclude that mercury did not further compromise survival. Dead bird counts and survival rate estimates included time in the colony when fed by adults, plus the critical period when young dispersed from the colony to forage independently. The extended drought during this 3-year study was most critical in 2002 when production of ~20&nbsp;d old egrets at LR was only 0.24 young/nest. In 2002, survival rates were low at both colonies and we documented the highest counts of dead egrets for both colonies. We suggest the losses in 2002 beyond 20 days of age were more a function of prey availability influenced by drought than exposure to mercury, especially at LR, because higher mercury concentrations, higher survival rates and fewer dead birds were documented at LR in 2003 when water conditions improved. Furthermore, total mercury (THg) in blood in 2003 was more than double 2002 (geometric mean, 3.39 vs 1.47&nbsp;µg/g wet weight (ww). This higher THg exposure at LR in 2003 was associated with a redistribution of parent and post-dispersal feeding activities upstream (where there was higher mercury from historic mining) related to slightly improved water levels. When comparing the 3-year telemetry findings based upon ~20&nbsp;d old young at LR (blood THg, geo. means 1.47, 3.39 and 1.89&nbsp;µg/g ww), we found no evidence that age at dispersal, Julian date at dispersal, timing of migration, or pre-migration survival (~20 to ~100 days post-hatch) were adversely affected by elevated mercury.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoenv.2016.10.002","usgsCitation":"Henny, C.J., Hill, E.F., Grove, R.A., Chelgren, N., and Haggerty, P.K., 2017, Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004: Ecotoxicology and Environmental Safety, v. 135, p. 358-367, https://doi.org/10.1016/j.ecoenv.2016.10.002.","productDescription":"10 p.","startPage":"358","endPage":"367","ipdsId":"IP-067269","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":470206,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ecoenv.2016.10.002","text":"Publisher Index Page"},{"id":331026,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","city":"Carsen City, Elko","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.59716796875,\n              39.16839998800286\n            ],\n            [\n              -119.59716796875,\n              41.071069130806414\n            ],\n            [\n              -115.5706787109375,\n              41.071069130806414\n            ],\n            [\n              -115.5706787109375,\n              39.16839998800286\n            ],\n            [\n              -119.59716796875,\n              39.16839998800286\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"135","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"582c2cdde4b0c253be072bec","contributors":{"authors":[{"text":"Henny, Charles J. 0000-0001-7474-350X hennyc@usgs.gov","orcid":"https://orcid.org/0000-0001-7474-350X","contributorId":3461,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"hennyc@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":653867,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, Elwood F.","contributorId":27115,"corporation":false,"usgs":true,"family":"Hill","given":"Elwood","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":653868,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grove, Robert A.","contributorId":52134,"corporation":false,"usgs":true,"family":"Grove","given":"Robert","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":653869,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chelgren, Nathan 0000-0003-0944-9165 nchelgren@usgs.gov","orcid":"https://orcid.org/0000-0003-0944-9165","contributorId":3134,"corporation":false,"usgs":true,"family":"Chelgren","given":"Nathan","email":"nchelgren@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":653870,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Haggerty, Patricia K. phaggerty@usgs.gov","contributorId":4602,"corporation":false,"usgs":true,"family":"Haggerty","given":"Patricia","email":"phaggerty@usgs.gov","middleInitial":"K.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":653871,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70178218,"text":"70178218 - 2017 - Detection limits of quantitative and digital PCR assays and their influence in presence-absence surveys of environmental DNA","interactions":[],"lastModifiedDate":"2017-02-24T10:51:24","indexId":"70178218","displayToPublicDate":"2016-11-07T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2776,"text":"Molecular Ecology Resources","active":true,"publicationSubtype":{"id":10}},"title":"Detection limits of quantitative and digital PCR assays and their influence in presence-absence surveys of environmental DNA","docAbstract":"<p><span>A set of universal guidelines is needed to determine the limit of detection (LOD) in PCR-based analyses of low concentration DNA. In particular, environmental DNA (eDNA) studies require sensitive and reliable methods to detect rare and cryptic species through shed genetic material in environmental samples. Current strategies for assessing detection limits of eDNA are either too stringent or subjective, possibly resulting in biased estimates of species’ presence. Here, a conservative LOD analysis grounded in analytical chemistry is proposed to correct for overestimated DNA concentrations predominantly caused by the concentration plateau, a nonlinear relationship between expected and measured DNA concentrations. We have used statistical criteria to establish formal mathematical models for both quantitative and droplet digital PCR. To assess the method, a new Grass Carp (</span><i>Ctenopharyngodon idella</i><span>) TaqMan assay was developed and tested on both PCR platforms using eDNA in water samples. The LOD adjustment reduced Grass Carp occupancy and detection estimates while increasing uncertainty – indicating that caution needs to be applied to eDNA data without LOD correction. Compared to quantitative PCR, digital PCR had higher occurrence estimates due to increased sensitivity and dilution of inhibitors at low concentrations. Without accurate LOD correction, species occurrence and detection probabilities based on eDNA estimates are prone to a source of bias that cannot be reduced by an increase in sample size or PCR replicates. Other applications also could benefit from a standardized LOD such as GMO food analysis, and forensic and clinical diagnostics.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/1755-0998.12619","usgsCitation":"Hunter, M., Dorazio, R.M., Butterfield, J.S., Meigs-Friend, G., Nico, L., and Ferrante, J.A., 2017, Detection limits of quantitative and digital PCR assays and their influence in presence-absence surveys of environmental DNA: Molecular Ecology Resources, v. 17, no. 2, p. 221-229, https://doi.org/10.1111/1755-0998.12619.","productDescription":"9 p.","startPage":"221","endPage":"229","ipdsId":"IP-074405","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":330858,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"2","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationDate":"2016-11-20","publicationStatus":"PW","scienceBaseUri":"5821a0dce4b02f1a881de968","chorus":{"doi":"10.1111/1755-0998.12619","url":"http://dx.doi.org/10.1111/1755-0998.12619","publisher":"Wiley-Blackwell","authors":"Hunter Margaret E., Dorazio Robert M., Butterfield John S. S., Meigs-Friend Gaia, Nico Leo G., Ferrante Jason A.","journalName":"Molecular Ecology Resources","publicationDate":"11/20/2016","auditedOn":"12/19/2016","publiclyAccessibleDate":"11/20/2016"},"contributors":{"authors":[{"text":"Hunter, Margaret 0000-0002-4760-9302 mhunter@usgs.gov","orcid":"https://orcid.org/0000-0002-4760-9302","contributorId":140627,"corporation":false,"usgs":true,"family":"Hunter","given":"Margaret","email":"mhunter@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":653305,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dorazio, Robert M. 0000-0003-2663-0468 bob_dorazio@usgs.gov","orcid":"https://orcid.org/0000-0003-2663-0468","contributorId":1668,"corporation":false,"usgs":true,"family":"Dorazio","given":"Robert","email":"bob_dorazio@usgs.gov","middleInitial":"M.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":false,"id":653306,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Butterfield, John S. jbutterfield@usgs.gov","contributorId":5593,"corporation":false,"usgs":true,"family":"Butterfield","given":"John","email":"jbutterfield@usgs.gov","middleInitial":"S.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":653307,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meigs-Friend, Gaia 0000-0001-5181-7510 gmeigs-friend@usgs.gov","orcid":"https://orcid.org/0000-0001-5181-7510","contributorId":4688,"corporation":false,"usgs":true,"family":"Meigs-Friend","given":"Gaia","email":"gmeigs-friend@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":653308,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nico, Leo 0000-0002-4488-7737 lnico@usgs.gov","orcid":"https://orcid.org/0000-0002-4488-7737","contributorId":138599,"corporation":false,"usgs":true,"family":"Nico","given":"Leo","email":"lnico@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":653309,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ferrante, Jason A. 0000-0003-3453-4636 jferrante@usgs.gov","orcid":"https://orcid.org/0000-0003-3453-4636","contributorId":176726,"corporation":false,"usgs":true,"family":"Ferrante","given":"Jason","email":"jferrante@usgs.gov","middleInitial":"A.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":653310,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70178063,"text":"70178063 - 2017 - Combining citizen science species distribution models and stable isotopes reveals migratory connectivity in the secretive Virginia rail","interactions":[],"lastModifiedDate":"2017-03-22T15:00:13","indexId":"70178063","displayToPublicDate":"2016-11-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Combining citizen science species distribution models and stable isotopes reveals migratory connectivity in the secretive Virginia rail","docAbstract":"<ol id=\"jpe12723-list-0001\" class=\"o-list--numbered o-list--paragraph\"><li>Stable hydrogen isotope (δD) methods for tracking animal movement are widely used yet often produce low resolution assignments. Incorporating prior knowledge of abundance, distribution or movement patterns can ameliorate this limitation, but data are lacking for most species. We demonstrate how observations reported by citizen scientists can be used to develop robust estimates of species distributions and to constrain δD assignments.</li><li>We developed a Bayesian framework to refine isotopic estimates of migrant animal origins conditional on species distribution models constructed from citizen scientist observations. To illustrate this approach, we analysed the migratory connectivity of the Virginia rail <i>Rallus limicola</i>, a secretive and declining migratory game bird in North America.</li><li>Citizen science observations enabled both estimation of sampling bias and construction of bias-corrected species distribution models. Conditioning δD assignments on these species distribution models yielded comparably high-resolution assignments.</li><li>Most Virginia rails wintering across five Gulf Coast sites spent the previous summer near the Great Lakes, although a considerable minority originated from the Chesapeake Bay watershed or Prairie Pothole region of North Dakota. Conversely, the majority of migrating Virginia rails from a site in the Great Lakes most likely spent the previous winter on the Gulf Coast between Texas and Louisiana.</li><li><i>Synthesis and applications</i>. In this analysis, Virginia rail migratory connectivity does not fully correspond to the administrative flyways used to manage migratory birds. This example demonstrates that with the increasing availability of citizen science data to create species distribution models, our framework can produce high-resolution estimates of migratory connectivity for many animals, including cryptic species. Empirical evidence of links between seasonal habitats will help enable effective habitat management, hunting quotas and population monitoring and also highlight critical knowledge gaps.</li></ol>","language":"English","publisher":"British Ecological Society","doi":"10.1111/1365-2664.12723","usgsCitation":"Fournier, A., Sullivan, A.R., Bump, J.K., Perkins, M., Shieldcastle, M.C., and King, S.L., 2017, Combining citizen science species distribution models and stable isotopes reveals migratory connectivity in the secretive Virginia rail: Journal of Applied Ecology, v. 54, no. 2, p. 618-627, https://doi.org/10.1111/1365-2664.12723.","productDescription":"10 p.","startPage":"618","endPage":"627","ipdsId":"IP-064836","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":470208,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/1365-2664.12723","text":"Publisher Index Page"},{"id":330642,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"2","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2016-07-13","publicationStatus":"PW","scienceBaseUri":"5819a9c0e4b0bb36a4c90fff","contributors":{"authors":[{"text":"Fournier, Auriel M. V.","contributorId":176535,"corporation":false,"usgs":false,"family":"Fournier","given":"Auriel M. V.","affiliations":[],"preferred":false,"id":652704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sullivan, Alexis R.","contributorId":176536,"corporation":false,"usgs":false,"family":"Sullivan","given":"Alexis","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":652705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bump, Joseph K.","contributorId":176538,"corporation":false,"usgs":false,"family":"Bump","given":"Joseph","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":652706,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perkins, Marie","contributorId":22957,"corporation":false,"usgs":false,"family":"Perkins","given":"Marie","email":"","affiliations":[],"preferred":false,"id":685742,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shieldcastle, Mark C.","contributorId":189699,"corporation":false,"usgs":false,"family":"Shieldcastle","given":"Mark","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":685743,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"King, Sammy L. 0000-0002-5364-6361 sking@usgs.gov","orcid":"https://orcid.org/0000-0002-5364-6361","contributorId":557,"corporation":false,"usgs":true,"family":"King","given":"Sammy","email":"sking@usgs.gov","middleInitial":"L.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":652689,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70178045,"text":"70178045 - 2017 - How will predicted land-use change affect waterfowl spring stopover ecology? Inferences from an individual-based model","interactions":[],"lastModifiedDate":"2017-05-15T17:19:32","indexId":"70178045","displayToPublicDate":"2016-11-01T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"How will predicted land-use change affect waterfowl spring stopover ecology? Inferences from an individual-based model","docAbstract":"<ol id=\"jpe12788-list-0001\" class=\"o-list--numbered o-list--paragraph\"><li>Habitat loss, habitat fragmentation, overexploitation and climate change pose familiar and new challenges to conserving natural populations throughout the world. One approach conservation planners may use to evaluate the effects of these challenges on wildlife populations is scenario planning.</li><li>We developed an individual-based model to evaluate the effects of future land use and land cover changes on spring-migrating dabbling ducks in North America. We assessed the effects of three Intergovernmental Panel&nbsp;on Climate Change emission scenarios (A1B, A2 and B1) on dabbling duck stopover duration, movement distances and mortality. We specifically focused on migration stopover duration because previous research has demonstrated that individuals arriving earlier on the nesting grounds exhibit increased reproductive fitness.</li><li>Compared to present conditions, all three scenarios increased stopover duration and movement distances of agent ducks.</li><li>Although all three scenarios presented migrating ducks with increased amounts of wetland habitat, scenarios also contained substantially less cropland, which decreased overall carrying capacity of the study area.</li><li><i>Synthesis and applications</i>. Land-use change may increase waterfowl spring migration stopover duration in the midcontinent region of North America due to reduced landscape energetic carrying capacity. Climate change will alter spatial patterns of crop distributions with corn and rice production areas shifting to different regions. Thus, conservation planners will have to address population-level energetic implications of shifting agricultural food resources and increased uncertainty in yearly precipitation patterns within the next 50&nbsp;years.</li></ol>","language":"English","publisher":"British Ecological Society","doi":"10.1111/1365-2664.12788","usgsCitation":"Beatty, W.S., Kesler, D.C., Webb, E.B., Naylor, L.W., Raedeke, A.H., Humburg, D.D., Coluccy, J.M., and Soulliere, G.J., 2017, How will predicted land-use change affect waterfowl spring stopover ecology? Inferences from an individual-based model: Journal of Applied Ecology, v. 54, no. 3, p. 926-934, https://doi.org/10.1111/1365-2664.12788.","productDescription":"9 p.","startPage":"926","endPage":"934","ipdsId":"IP-066514","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":470209,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/1365-2664.12788","text":"Publisher Index Page"},{"id":330603,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"3","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2016-10-11","publicationStatus":"PW","scienceBaseUri":"5819a9c1e4b0bb36a4c91003","contributors":{"authors":[{"text":"Beatty, William S. 0000-0003-0013-3113 wbeatty@usgs.gov","orcid":"https://orcid.org/0000-0003-0013-3113","contributorId":173946,"corporation":false,"usgs":true,"family":"Beatty","given":"William","email":"wbeatty@usgs.gov","middleInitial":"S.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":652611,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kesler, Dylan C.","contributorId":14358,"corporation":false,"usgs":false,"family":"Kesler","given":"Dylan","email":"","middleInitial":"C.","affiliations":[{"id":6769,"text":"University of Missouri, Columbia, MO","active":true,"usgs":false}],"preferred":false,"id":652612,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Webb, Elisabeth B. 0000-0003-3851-6056 ewebb@usgs.gov","orcid":"https://orcid.org/0000-0003-3851-6056","contributorId":3981,"corporation":false,"usgs":true,"family":"Webb","given":"Elisabeth","email":"ewebb@usgs.gov","middleInitial":"B.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":652590,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Naylor, Luke W.","contributorId":145840,"corporation":false,"usgs":false,"family":"Naylor","given":"Luke","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":652613,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Raedeke, Andrew H.","contributorId":94083,"corporation":false,"usgs":true,"family":"Raedeke","given":"Andrew","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":652614,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Humburg, Dale D.","contributorId":79357,"corporation":false,"usgs":false,"family":"Humburg","given":"Dale","email":"","middleInitial":"D.","affiliations":[{"id":13073,"text":"Ducks Unlimited, Inc.","active":true,"usgs":false}],"preferred":false,"id":652615,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Coluccy, John M.","contributorId":111382,"corporation":false,"usgs":true,"family":"Coluccy","given":"John","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":652616,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Soulliere, Gregory J.","contributorId":172329,"corporation":false,"usgs":false,"family":"Soulliere","given":"Gregory","email":"","middleInitial":"J.","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":652617,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70177944,"text":"70177944 - 2017 - Hydrologic restoration in a dynamic subtropical mangrove-to-marsh ecotone","interactions":[],"lastModifiedDate":"2017-06-28T10:23:25","indexId":"70177944","displayToPublicDate":"2016-10-31T12:30:35","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3271,"text":"Restoration Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic restoration in a dynamic subtropical mangrove-to-marsh ecotone","docAbstract":"<p><span>Extensive hydrologic modifications in coastal regions across the world have occurred to support infrastructure development, altering the function of many coastal wetlands. Wetland restoration success is dependent on the existence of hydrologic regimes that support development of appropriate soils and the growth and persistence of wetland vegetation. In Florida, United States, the Comprehensive Everglades Restoration Program (CERP) seeks to restore, protect, and preserve water resources of the greater Everglades region. Herein we describe vegetation dynamics in a mangrove-to-marsh ecotone within the impact area of a CERP hydrologic restoration project currently under development. Vegetation communities are also described for a similar area outside the project area. We found that vegetation shifts within the impact area occurred over a 7-year period; cover of herbaceous species varied by location, and an 88% increase in the total number of mangrove seedlings was documented. We attribute these shifts to the existing modified hydrologic regime, which is characterized by a low volume of freshwater sheet flow compared with historical conditions (i.e. before modification), as well as increased tidal influence. We also identified a significant trend of decreasing soil surface elevation at the impact area. The CERP restoration project is designed to increase freshwater sheet flow to the impact area. Information from our study characterizing existing vegetation dynamics prior to implementation of the restoration project is required to allow documentation of long-term project effects on plant community composition and structure within a framework of background variation, thereby allowing assessment of the project's success in restoring critical ecosystem functions.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/rec.12452","usgsCitation":"Howard, R.J., Day, R.H., Krauss, K.W., From, A.S., Allain, L.K., and Cormier, N., 2017, Hydrologic restoration in a dynamic subtropical mangrove-to-marsh ecotone: Restoration Ecology, v. 25, no. 3, p. 471-482, https://doi.org/10.1111/rec.12452.","productDescription":"12 p.","startPage":"471","endPage":"482","ipdsId":"IP-077093","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":438461,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9ZLM50V","text":"USGS data release","linkHelpText":"Vegetation survey of southwest Florida for use in assessment of the Picayune Strand Restoration Project effects"},{"id":330576,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida ","otherGeospatial":"Big Cypress National Rreserve","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -81.57485961914062,\n              26.025319095640015\n            ],\n            [\n              -81.48422241210938,\n              26.00865837808846\n            ],\n            [\n              -81.42105102539061,\n              25.988909281163984\n            ],\n            [\n              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-81.57485961914062,\n              26.025319095640015\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"25","issue":"3","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationDate":"2016-09-26","publicationStatus":"PW","scienceBaseUri":"5818582ce4b0bb36a4c6fa01","contributors":{"authors":[{"text":"Howard, Rebecca J. 0000-0001-7264-4364 howardr@usgs.gov","orcid":"https://orcid.org/0000-0001-7264-4364","contributorId":2429,"corporation":false,"usgs":true,"family":"Howard","given":"Rebecca","email":"howardr@usgs.gov","middleInitial":"J.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652442,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Day, Richard H. 0000-0002-5959-7054 dayr@usgs.gov","orcid":"https://orcid.org/0000-0002-5959-7054","contributorId":2427,"corporation":false,"usgs":true,"family":"Day","given":"Richard","email":"dayr@usgs.gov","middleInitial":"H.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652443,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krauss, Ken W. 0000-0003-2195-0729 kraussk@usgs.gov","orcid":"https://orcid.org/0000-0003-2195-0729","contributorId":2017,"corporation":false,"usgs":true,"family":"Krauss","given":"Ken","email":"kraussk@usgs.gov","middleInitial":"W.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652444,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"From, Andrew S. 0000-0002-6543-2627 froma@usgs.gov","orcid":"https://orcid.org/0000-0002-6543-2627","contributorId":5038,"corporation":false,"usgs":true,"family":"From","given":"Andrew","email":"froma@usgs.gov","middleInitial":"S.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":false,"id":652445,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Allain, Larry K. 0000-0002-7717-9761 allainl@usgs.gov","orcid":"https://orcid.org/0000-0002-7717-9761","contributorId":2414,"corporation":false,"usgs":true,"family":"Allain","given":"Larry","email":"allainl@usgs.gov","middleInitial":"K.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652446,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cormier, Nicole 0000-0003-2453-9900 cormiern@usgs.gov","orcid":"https://orcid.org/0000-0003-2453-9900","contributorId":4262,"corporation":false,"usgs":true,"family":"Cormier","given":"Nicole","email":"cormiern@usgs.gov","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652447,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70177951,"text":"70177951 - 2017 - Groundwater response to the 2014 pulse flow in the Colorado River Delta","interactions":[],"lastModifiedDate":"2019-12-19T07:08:23","indexId":"70177951","displayToPublicDate":"2016-10-31T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater response to the 2014 pulse flow in the Colorado River Delta","docAbstract":"<p><span>During the March-May 2014 Colorado River Delta pulse flow, approximately 102&nbsp;×&nbsp;10</span><sup>6</sup><span>&nbsp;m</span><sup>3</sup><span> (82,000 acre-feet) of water was released into the channel at Morelos Dam, with additional releases further downstream. The majority of pulse flow water infiltrated and recharged the regional aquifer. Using groundwater-level and microgravity data we mapped the spatial and temporal distribution of changes in aquifer storage associated with pulse flow. Surface-water losses to infiltration were greatest around the Southerly International Boundary, where a lowered groundwater level owing to nearby pumping created increased storage potential as compared to other areas with shallower groundwater. Groundwater levels were elevated for several months after the pulse flow but had largely returned to pre-pulse levels by fall 2014. Elevated groundwater levels in the limitrophe (border) reach extended about 2&nbsp;km to the east around the midway point between the Northerly and Southerly International Boundaries, and about 4&nbsp;km to the east at the southern end. In the southern part of the delta, although total streamflow in the channel was less due to upstream infiltration, augmented deliveries through irrigation canals and possible irrigation return flows created sustained increases in groundwater levels during summer 2014. Results show that elevated groundwater levels and increases in groundwater storage were relatively short lived (confined to calendar year 2014), and that depressed water levels associated with groundwater pumping around San Luis, Arizona and San Luis Rio Colorado, Sonora cause large, unavoidable infiltration losses of in-channel water to groundwater in the vicinity.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoleng.2016.10.072","usgsCitation":"Kennedy, J.R., Rodriguez-Burgueno, E., and Ramirez-Hernandez, J., 2017, Groundwater response to the 2014 pulse flow in the Colorado River Delta: Ecological Engineering, v. 106, no. B, p. 715-724, https://doi.org/10.1016/j.ecoleng.2016.10.072.","productDescription":"10 p.","startPage":"715","endPage":"724","ipdsId":"IP-073836","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":470210,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ecoleng.2016.10.072","text":"Publisher Index Page"},{"id":330575,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States, Mexico","otherGeospatial":"Colorado River Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.71923828124999,\n              32.699488680852674\n            ],\n            [\n              -114.873046875,\n              32.80574473290688\n            ],\n            [\n              -117.1636962890625,\n              32.602361666817515\n            ],\n            [\n              -117.3175048828125,\n              32.46806060917602\n            ],\n            [\n              -116.3232421875,\n              30.850363469502362\n            ],\n            [\n              -114.5928955078125,\n              31.695455797778713\n            ],\n            [\n              -114.71923828124999,\n              32.699488680852674\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"106","issue":"B","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5818582de4b0bb36a4c6fa0d","contributors":{"authors":[{"text":"Kennedy, Jeffrey R. 0000-0002-3365-6589 jkennedy@usgs.gov","orcid":"https://orcid.org/0000-0002-3365-6589","contributorId":176478,"corporation":false,"usgs":true,"family":"Kennedy","given":"Jeffrey","email":"jkennedy@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":652458,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rodriguez-Burgueno, Eliana 0000-0002-5590-6606","orcid":"https://orcid.org/0000-0002-5590-6606","contributorId":176492,"corporation":false,"usgs":false,"family":"Rodriguez-Burgueno","given":"Eliana","email":"","affiliations":[],"preferred":false,"id":652510,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ramirez-Hernandez, Jorge","contributorId":176218,"corporation":false,"usgs":false,"family":"Ramirez-Hernandez","given":"Jorge","affiliations":[],"preferred":false,"id":652511,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70177934,"text":"70177934 - 2017 - Climate, invasive species and land use drive population dynamics of a cold-water specialist","interactions":[],"lastModifiedDate":"2017-03-22T15:01:31","indexId":"70177934","displayToPublicDate":"2016-10-27T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Climate, invasive species and land use drive population dynamics of a cold-water specialist","docAbstract":"<ol id=\"jpe12766-list-0001\" class=\"o-list--numbered o-list--paragraph\"><li>Climate change is an additional stressor in a complex suite of threats facing freshwater biodiversity, particularly for cold-water fishes. Research addressing the consequences of climate change on cold-water fish has generally focused on temperature limits defining spatial distributions, largely ignoring how climatic variation influences population dynamics in the context of other existing stressors.</li><li>We used long-term data from 92 populations of bull trout <i>Salvelinus confluentus</i> – one of North America's most cold-adapted fishes – to quantify additive and interactive effects of climate, invasive species and land use on population dynamics (abundance, variability and growth rate).</li><li>Populations were generally depressed, more variable and declining where spawning and rearing stream habitat was limited, invasive species and land use were prevalent and stream temperatures were highest. Increasing stream temperature acted additively and independently, whereas land use and invasive species had additive and interactive effects (i.e. the impact of one stressor depended on exposure to the other stressor).</li><li>Most (58%–78%) of the explained variation in population dynamics was attributed to the presence of invasive species, differences in life history and management actions in foraging habitats in rivers, lakes and reservoirs. Although invasive fishes had strong negative effects on populations in foraging habitats, proactive control programmes appeared to effectively temper their negative impact.</li><li><i>Synthesis and applications</i>. Long-term demographic data emphasize that climate warming&nbsp;will exacerbate imperilment of cold-water specialists like bull trout, yet other stressors – especially invasive fishes – are immediate threats that can be addressed by proactive management actions. Therefore, climate-adaptation strategies for freshwater biodiversity&nbsp;should consider existing abiotic and biotic stressors, some of which provide potential&nbsp;and realized opportunity for conservation of freshwater biodiversity in a warming world.</li></ol>","language":"English","publisher":"British Ecological Society","doi":"10.1111/1365-2664.12766","usgsCitation":"Kovach, R.P., Al-Chokhachy, R.K., Whited, D.C., Schmetterling, D.A., Dux, A.M., and Muhlfeld, C.C., 2017, Climate, invasive species and land use drive population dynamics of a cold-water specialist: Journal of Applied Ecology, v. 54, no. 2, p. 638-647, https://doi.org/10.1111/1365-2664.12766.","productDescription":"10 p.","startPage":"638","endPage":"647","ipdsId":"IP-073215","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":488532,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/1365-2664.12766","text":"Publisher Index Page"},{"id":330511,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"2","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2016-09-05","publicationStatus":"PW","scienceBaseUri":"5813125be4b0b5a0c12ab640","chorus":{"doi":"10.1111/1365-2664.12766","url":"http://dx.doi.org/10.1111/1365-2664.12766","publisher":"Wiley-Blackwell","authors":"Kovach Ryan P., Al-Chokhachy Robert, Whited Diane C., Schmetterling David A., Dux Andrew M., Muhlfeld Clint C.","journalName":"Journal of Applied Ecology","publicationDate":"9/5/2016","publiclyAccessibleDate":"9/5/2016"},"contributors":{"authors":[{"text":"Kovach, Ryan P. rkovach@usgs.gov","contributorId":5772,"corporation":false,"usgs":true,"family":"Kovach","given":"Ryan","email":"rkovach@usgs.gov","middleInitial":"P.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":false,"id":652419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Al-Chokhachy, Robert K. 0000-0002-2136-5098 ral-chokhachy@usgs.gov","orcid":"https://orcid.org/0000-0002-2136-5098","contributorId":1674,"corporation":false,"usgs":true,"family":"Al-Chokhachy","given":"Robert","email":"ral-chokhachy@usgs.gov","middleInitial":"K.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":652420,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Whited, Diane C.","contributorId":145916,"corporation":false,"usgs":false,"family":"Whited","given":"Diane","email":"","middleInitial":"C.","affiliations":[{"id":16296,"text":"University of Montana, Polson Montana 59860 USA","active":true,"usgs":false}],"preferred":false,"id":652421,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schmetterling, David A.","contributorId":20223,"corporation":false,"usgs":true,"family":"Schmetterling","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":652422,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dux, Andrew M.","contributorId":175256,"corporation":false,"usgs":false,"family":"Dux","given":"Andrew","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":652423,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Muhlfeld, Clint C. 0000-0002-4599-4059 cmuhlfeld@usgs.gov","orcid":"https://orcid.org/0000-0002-4599-4059","contributorId":924,"corporation":false,"usgs":true,"family":"Muhlfeld","given":"Clint","email":"cmuhlfeld@usgs.gov","middleInitial":"C.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":652424,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70177847,"text":"70177847 - 2017 - A history of the 2014 Minute 319 environmental pulse flow asdocumented by field measurements and satellite imagery","interactions":[],"lastModifiedDate":"2017-08-27T18:37:40","indexId":"70177847","displayToPublicDate":"2016-10-25T11:15:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"A history of the 2014 Minute 319 environmental pulse flow asdocumented by field measurements and satellite imagery","docAbstract":"<p><span>As provided in Minute 319 of the U.S.-Mexico Water Treaty of 1944, a pulse flow of approximately 132 million cubic meters (mcm) was released to the riparian corridor of the Colorado River Delta over an eight-week period that began March 23, 2014 and ended May 18, 2014. Peak flows were released in the early part of the pulse to simulate a spring flood, with approximately 101.7&nbsp;mcm released at Morelos Dam on the U.S.-Mexico border. The remainder of the pulse flow water was released to the riparian corridor via Mexicali Valley irrigation spillway canals, with 20.9&nbsp;mcm released at Km 27 Spillway (41&nbsp;km below Morelos Dam) and 9.3&nbsp;mcm released at Km 18 Spillway (78&nbsp;km below Morelos Dam). We used sequential satellite images, overflights, ground observations, water discharge measurements, and automated temperature, river stage and water quality loggers to document and describe the progression of pulse flow water through the study area. The rate of advance of the wetted front was slowed by infiltration and high channel roughness as the pulse flow crossed more than 40&nbsp;km of dry channel which was disconnected from underlying groundwater and partially overgrown with salt cedar. High lag time and significant attenuation of flow resulted in a changing hydrograph as the pulse flow progressed to the downstream delivery points; two peak flows occurred in some lower reaches. The pulse flow advanced more than 120&nbsp;km downstream from Morelos Dam to reach the Colorado River estuary at the northern end of the Gulf of California.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoleng.2016.10.040","usgsCitation":"Nelson, S., Ramirez-Hernandez, J., Rodriguez-Burgeueno, J.E., Milliken, J., Kennedy, J.R., Zamora-Arroyo, F., Schlatter, K., Santiago-Serrano, E., and Carrera-Villa, E., 2017, A history of the 2014 Minute 319 environmental pulse flow asdocumented by field measurements and satellite imagery: Ecological Engineering, v. 106, no. B, p. 733-748, https://doi.org/10.1016/j.ecoleng.2016.10.040.","productDescription":"16 p.","startPage":"733","endPage":"748","ipdsId":"IP-072720","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":330356,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"106","issue":"B","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58106f97e4b0f497e796110b","contributors":{"authors":[{"text":"Nelson, Steven M.","contributorId":176230,"corporation":false,"usgs":false,"family":"Nelson","given":"Steven M.","affiliations":[],"preferred":false,"id":651934,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ramirez-Hernandez, Jorge","contributorId":176218,"corporation":false,"usgs":false,"family":"Ramirez-Hernandez","given":"Jorge","affiliations":[],"preferred":false,"id":651935,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rodriguez-Burgeueno, J. Eliana","contributorId":176219,"corporation":false,"usgs":false,"family":"Rodriguez-Burgeueno","given":"J.","email":"","middleInitial":"Eliana","affiliations":[],"preferred":false,"id":651936,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Milliken, Jeff","contributorId":130998,"corporation":false,"usgs":false,"family":"Milliken","given":"Jeff","email":"","affiliations":[{"id":7203,"text":"DOI, Bureau of Reclamation","active":true,"usgs":false}],"preferred":false,"id":651937,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kennedy, Jeffrey R. 0000-0002-3365-6589 jkennedy@usgs.gov","orcid":"https://orcid.org/0000-0002-3365-6589","contributorId":2172,"corporation":false,"usgs":true,"family":"Kennedy","given":"Jeffrey","email":"jkennedy@usgs.gov","middleInitial":"R.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":651933,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zamora-Arroyo, Francisco","contributorId":75834,"corporation":false,"usgs":true,"family":"Zamora-Arroyo","given":"Francisco","email":"","affiliations":[],"preferred":false,"id":651938,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schlatter, Karen","contributorId":176222,"corporation":false,"usgs":false,"family":"Schlatter","given":"Karen","email":"","affiliations":[],"preferred":false,"id":651939,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Santiago-Serrano, Edith","contributorId":176223,"corporation":false,"usgs":false,"family":"Santiago-Serrano","given":"Edith","email":"","affiliations":[],"preferred":false,"id":651940,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Carrera-Villa, Edgar","contributorId":176232,"corporation":false,"usgs":false,"family":"Carrera-Villa","given":"Edgar","email":"","affiliations":[],"preferred":false,"id":651960,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70177917,"text":"70177917 - 2017 - Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients","interactions":[],"lastModifiedDate":"2017-01-03T16:09:01","indexId":"70177917","displayToPublicDate":"2016-10-17T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients","docAbstract":"<p><span>Within the context of climate change, there is a pressing need to better understand the ecological implications of changes in the frequency and intensity of climate extremes. Along subtropical coasts, less frequent and warmer freeze events are expected to permit freeze-sensitive mangrove forests to expand poleward and displace freeze-tolerant salt marshes. Here, our aim was to better understand the drivers of poleward mangrove migration by quantifying spatiotemporal patterns in mangrove range expansion and contraction across land-ocean temperature gradients. Our work was conducted in a freeze-sensitive mangrove-marsh transition zone that spans a land-ocean temperature gradient in one of the world's most wetland-rich regions (Mississippi River Deltaic Plain; Louisiana, USA). We used historical air temperature data (1893-2014), alternative future climate scenarios, and coastal wetland coverage data (1978-2011) to investigate spatiotemporal fluctuations and climate-wetland linkages. Our analyses indicate that changes in mangrove coverage have been controlled primarily by extreme freeze events (i.e., air temperatures below a threshold zone of -6.3 to -7.6 °C). We expect that in the past 121 years, mangrove range expansion and contraction has occurred across land-ocean temperature gradients. Mangrove resistance, resilience, and dominance were all highest in areas closer to the ocean where temperature extremes were buffered by large expanses of water and saturated soil. Under climate change, these areas will likely serve as local hotspots for mangrove dispersal, growth, range expansion, and displacement of salt marsh. Collectively, our results show that the frequency and intensity of freeze events across land-ocean temperature gradients greatly influences spatiotemporal patterns of range expansion and contraction of freeze-sensitive mangroves. We expect that, along subtropical coasts, similar processes govern the distribution and abundance of other freeze-sensitive organisms. In broad terms, our findings can be used to better understand and anticipate the ecological effects of changing winter climate extremes, especially within the transition zone between tropical and temperate climates.</span></p>","language":"English","publisher":"Ecological Society of America","doi":"10.1002/ecy.1625","usgsCitation":"Osland, M.J., Day, R.H., Hall, C., Brumfield, M.D., Dugas, J., and Jones, W.R., 2017, Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients: Ecology, v. 98, no. 1, p. 125-137, https://doi.org/10.1002/ecy.1625.","productDescription":"13 p.","startPage":"125","endPage":"137","ipdsId":"IP-071497","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":330414,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -93,\n              29.1\n            ],\n            [\n              -93,\n              30.6\n            ],\n            [\n              -89.3,\n              30.6\n            ],\n            [\n              -89.3,\n              29.1\n            ],\n            [\n              -93,\n              29.1\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"98","issue":"1","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationDate":"2016-12-09","publicationStatus":"PW","scienceBaseUri":"5811c0f1e4b0f497e79a5a69","chorus":{"doi":"10.1002/ecy.1625","url":"http://dx.doi.org/10.1002/ecy.1625","publisher":"Wiley-Blackwell","authors":"Osland Michael J., Day Richard H., Hall Courtney T., Brumfield Marisa D., Dugas Jason L., Jones William R.","journalName":"Ecology","publicationDate":"12/9/2016","auditedOn":"12/17/2016","publiclyAccessibleDate":"12/9/2016"},"contributors":{"authors":[{"text":"Osland, Michael J. 0000-0001-9902-8692 mosland@usgs.gov","orcid":"https://orcid.org/0000-0001-9902-8692","contributorId":3080,"corporation":false,"usgs":true,"family":"Osland","given":"Michael","email":"mosland@usgs.gov","middleInitial":"J.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":652221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Day, Richard H. 0000-0002-5959-7054 dayr@usgs.gov","orcid":"https://orcid.org/0000-0002-5959-7054","contributorId":2427,"corporation":false,"usgs":true,"family":"Day","given":"Richard","email":"dayr@usgs.gov","middleInitial":"H.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652222,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hall, Courtney T. 0000-0003-0990-5212","orcid":"https://orcid.org/0000-0003-0990-5212","contributorId":176330,"corporation":false,"usgs":true,"family":"Hall","given":"Courtney T.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brumfield, Marisa D","contributorId":176329,"corporation":false,"usgs":false,"family":"Brumfield","given":"Marisa","email":"","middleInitial":"D","affiliations":[],"preferred":false,"id":652224,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dugas, Jason 0000-0001-6094-7560 dugasj@usgs.gov","orcid":"https://orcid.org/0000-0001-6094-7560","contributorId":2996,"corporation":false,"usgs":true,"family":"Dugas","given":"Jason","email":"dugasj@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652225,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jones, William R. 0000-0002-5493-4138 jonesb@usgs.gov","orcid":"https://orcid.org/0000-0002-5493-4138","contributorId":463,"corporation":false,"usgs":true,"family":"Jones","given":"William","email":"jonesb@usgs.gov","middleInitial":"R.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":652226,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70177068,"text":"70177068 - 2017 - Ion-adsorption REEs in regolith of the Liberty Hill pluton, South Carolina, USA: An effect of hydrothermal alteration","interactions":[],"lastModifiedDate":"2018-10-22T09:18:20","indexId":"70177068","displayToPublicDate":"2016-10-11T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Ion-adsorption REEs in regolith of the Liberty Hill pluton, South Carolina, USA: An effect of hydrothermal alteration","docAbstract":"<p><span>Ion-adsorbed rare earth element (REE) deposits supply the majority of world heavy REE production and substantial light REE production, but relatively little is known of their occurrence outside Southeast Asia. We examined the distribution and forms of REEs on a North American pluton located in the highly weathered and slowly eroding South Carolina Piedmont. The Hercynian Liberty Hill pluton experiences a modern climate that includes ~&nbsp;1500&nbsp;mm annual rainfall and a mean annual temperature of 17&nbsp;°C. The pluton is medium- to coarse-grained biotite-amphibole granite with minor biotite granite facies. REE-bearing phases are diverse and include monazite, zircon, titanite, allanite, apatite and bastnäsite. Weathered profiles were sampled up to 7&nbsp;m-deep across the ~&nbsp;400&nbsp;km</span><sup>2&nbsp;</sup><span>pluton. In one profile, ion-adsorbed REEs plus yttrium (REE&nbsp;+&nbsp;Y) ranged up to 581&nbsp;mg/kg and accounted for up to 77% of total REE&nbsp;+&nbsp;Y in saprolite. In other profiles, ion-adsorbed REE&nbsp;+&nbsp;Y ranged 12–194&nbsp;mg/kg and only accounted for 3–37% of totals. The profile most enriched in ion-adsorbed REEs was located along the mapped boundary of two granite facies and contained trioctahedral smectite in the saprolite, evidence suggestive of hydrothermal alteration of biotite at that location. Post-emplacement deuteric alteration can generate easily weathered REE phases, particularly fluorocarbonates. In the case of Liberty Hill, hydrothermal alteration may have converted less soluble to more soluble REE minerals. Additionally, regolith P content was inversely correlated with the fraction ion-adsorbed REEs, and weathering related secondary REE-phosphates were found in some regolith profiles. Both patterns illustrate how low P content aids in the accumulation of ion-adsorbed REEs. The localized occurrence at Liberty Hill sheds light on conditions and processes that generate ion-adsorbed REEs.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.gexplo.2016.09.009","usgsCitation":"Bern, C., Yesavage, T., and Foley, N.K., 2017, Ion-adsorption REEs in regolith of the Liberty Hill pluton, South Carolina, USA: An effect of hydrothermal alteration: Journal of Geochemical Exploration, v. 172, p. 29-40, https://doi.org/10.1016/j.gexplo.2016.09.009.","productDescription":"12 p.","startPage":"29","endPage":"40","ipdsId":"IP-075234","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":470217,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.gexplo.2016.09.009","text":"Publisher Index Page"},{"id":329737,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","otherGeospatial":"Liberty Hill Pluton","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.75818061828613,\n              34.49562815822762\n            ],\n            [\n              -80.75818061828613,\n              34.50447006777167\n            ],\n            [\n              -80.74298858642577,\n              34.50447006777167\n            ],\n            [\n              -80.74298858642577,\n              34.49562815822762\n            ],\n            [\n              -80.75818061828613,\n              34.49562815822762\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"172","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58088684e4b0f497e78e24b3","chorus":{"doi":"10.1016/j.gexplo.2016.09.009","url":"http://dx.doi.org/10.1016/j.gexplo.2016.09.009","publisher":"Elsevier BV","authors":"Bern Carleton R., Yesavage Tiffany, Foley Nora K.","journalName":"Journal of Geochemical Exploration","publicationDate":"1/2017"},"contributors":{"authors":[{"text":"Bern, Carleton R. cbern@usgs.gov","contributorId":657,"corporation":false,"usgs":true,"family":"Bern","given":"Carleton R.","email":"cbern@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":false,"id":651205,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yesavage, Tiffany","contributorId":175456,"corporation":false,"usgs":false,"family":"Yesavage","given":"Tiffany","affiliations":[{"id":27571,"text":"USGS volunteer","active":true,"usgs":false}],"preferred":false,"id":651206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foley, Nora K. 0000-0003-0124-3509 nfoley@usgs.gov","orcid":"https://orcid.org/0000-0003-0124-3509","contributorId":4010,"corporation":false,"usgs":true,"family":"Foley","given":"Nora","email":"nfoley@usgs.gov","middleInitial":"K.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":651207,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70176843,"text":"70176843 - 2017 - Retrospective analysis of the epidemiologic literature, 1990–2015, on wildlife-associated diseases from the Republic of Korea","interactions":[],"lastModifiedDate":"2017-01-13T15:20:15","indexId":"70176843","displayToPublicDate":"2016-10-11T00:00:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Retrospective analysis of the epidemiologic literature, 1990–2015, on wildlife-associated diseases from the Republic of Korea","docAbstract":"<p><span>To assess the status of research on wildlife diseases in the Republic of Korea (ROK) and to identify trends, knowledge gaps, and directions for future research, we reviewed epidemiologic publications on wildlife-associated diseases in the ROK. We identified a relatively small but rapidly increasing body of literature. The majority of publications were focused on public or livestock health and relatively few addressed wildlife health. Most studies that focused on human and livestock health were cross-sectional whereas wildlife health studies were mostly case reports. Fifteen diseases notifiable to the World Organisation for Animal Health were identified and 21 diseases were identified as notifiable to either the Korean Ministry of Health, Welfare, and Family Affairs or the Korean Ministry of Agriculture. Two diseases were reported as occurring as epidemics; highly pathogenic avian influenza (HPAI) and virulent Newcastle disease. Six diseases or disease agents were described in the literature as emerging including HPAI, rabies, </span><i><i>Babesia microti</i></i><span>, avian coronaviruses, scrub typhus, and severe fever thrombocytopenia syndrome virus. The diseases for which there were the largest number of publications were HPAI and rabies. The majority of wildlife-associated zoonotic disease publications focused on food-borne parasitic infections or rodent-associated diseases. Several publications focused on the potential of wildlife as reservoirs of livestock diseases; in particular, water deer (</span><i><i>Hydropotes inermis</i></i><span>) and wild boar (</span><i><i>Sus scrofa</i></i><span>). In contrast, there were few publications on diseases of concern for wildlife populations or research to understand the impacts of these diseases for wildlife management. Increased focus on prospective studies would enhance understanding of disease dynamics in wildlife populations. For the high-consequence diseases that impact multiple sectors, a One Health approach, with coordination among the public health, agricultural, and environmental sectors, would be important. This type of review can provide useful information for countries or regions planning or implementing national wildlife health programs.</span></p>","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/2015-12-348","usgsCitation":"Hwang, J., Lee, K., Kim, Y., Sleeman, J.M., and Lee, H., 2017, Retrospective analysis of the epidemiologic literature, 1990–2015, on wildlife-associated diseases from the Republic of Korea: Journal of Wildlife Diseases, v. 53, no. 1, p. 5-18, https://doi.org/10.7589/2015-12-348.","productDescription":"14 p.","startPage":"5","endPage":"18","ipdsId":"IP-071589","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":329421,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Korea","volume":"53","issue":"1","publishingServiceCenter":{"id":6,"text":"Columbus PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57fe679be4b0824b2d143701","contributors":{"authors":[{"text":"Hwang, Jusun","contributorId":175221,"corporation":false,"usgs":false,"family":"Hwang","given":"Jusun","email":"","affiliations":[{"id":27539,"text":"College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea","active":true,"usgs":false}],"preferred":false,"id":650488,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Kyunglee","contributorId":175223,"corporation":false,"usgs":false,"family":"Lee","given":"Kyunglee","email":"","affiliations":[{"id":27540,"text":"Cetacean Research Institute, National Fisheries Research and Development Institute, Ulsan, Republic of Korea","active":true,"usgs":false}],"preferred":false,"id":650490,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kim, Young-Jun","contributorId":175224,"corporation":false,"usgs":false,"family":"Kim","given":"Young-Jun","email":"","affiliations":[{"id":27541,"text":"Department of Veterinary Medicine, National Institute of Ecology, Geumgangro 1210, Maseo-myeon, Seocheon-gun, Chungnam-Do, Republic of Korea","active":true,"usgs":false}],"preferred":false,"id":650491,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sleeman, Jonathan M. 0000-0002-9910-6125 jsleeman@usgs.gov","orcid":"https://orcid.org/0000-0002-9910-6125","contributorId":128,"corporation":false,"usgs":true,"family":"Sleeman","given":"Jonathan","email":"jsleeman@usgs.gov","middleInitial":"M.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true},{"id":82110,"text":"Midcontinent Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":650487,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lee, Hang","contributorId":175222,"corporation":false,"usgs":false,"family":"Lee","given":"Hang","affiliations":[{"id":27539,"text":"College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea","active":true,"usgs":false}],"preferred":false,"id":650489,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70176665,"text":"70176665 - 2017 - Filamentous hydrous ferric oxide biosignatures in a pipeline carrying acid mine drainage at Iron Mountain Mine, California","interactions":[],"lastModifiedDate":"2017-03-22T15:05:53","indexId":"70176665","displayToPublicDate":"2016-09-23T16:35:00","publicationYear":"2017","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":"Filamentous hydrous ferric oxide biosignatures in a pipeline carrying acid mine drainage at Iron Mountain Mine, California","docAbstract":"<p><span>A pipeline carrying acidic mine effluent at Iron Mountain, CA, developed Fe(III)-rich precipitate caused by oxidation of Fe(II)</span><sub>aq</sub><span>. The native microbial community in the pipe included filamentous microbes. The pipe scale consisted of microbial filaments, and schwertmannite (ferric oxyhydroxysulfate, FOHS) mineral spheres and filaments. FOHS filaments contained central lumina with diameters similar to those of microbial filaments. FOHS filament geometry, the geochemical environment, and the presence of filamentous microbes suggest that FOHS filaments are mineralized microbial filaments. This formation of textural biosignatures provides the basis for a conceptual model for the development and preservation of biosignatures in other environments.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/01490451.2016.1155679","usgsCitation":"Williams, A.J., Alpers, C.N., Sumner, D.Y., and Campbell, K.M., 2017, Filamentous hydrous ferric oxide biosignatures in a pipeline carrying acid mine drainage at Iron Mountain Mine, California: Geomicrobiology Journal, v. 34, no. 3, p. 193-206, https://doi.org/10.1080/01490451.2016.1155679.","productDescription":"14 p.","startPage":"193","endPage":"206","ipdsId":"IP-064520","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":328933,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"3","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationDate":"2016-08-16","publicationStatus":"PW","scienceBaseUri":"57f7c63ce4b0bc0bec09c858","contributors":{"authors":[{"text":"Williams, Amy J.","contributorId":138805,"corporation":false,"usgs":false,"family":"Williams","given":"Amy","email":"","middleInitial":"J.","affiliations":[{"id":12532,"text":"Univ. of California, Davis","active":true,"usgs":false}],"preferred":false,"id":649542,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":649543,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sumner, Dawn Y.","contributorId":88997,"corporation":false,"usgs":true,"family":"Sumner","given":"Dawn","email":"","middleInitial":"Y.","affiliations":[],"preferred":false,"id":649544,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Campbell, Kate M. 0000-0002-8715-5544 kcampbell@usgs.gov","orcid":"https://orcid.org/0000-0002-8715-5544","contributorId":1441,"corporation":false,"usgs":true,"family":"Campbell","given":"Kate","email":"kcampbell@usgs.gov","middleInitial":"M.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":649545,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70176504,"text":"70176504 - 2017 - Habitat selection by postbreeding female diving ducks: Influence of habitat attributes and conspecifics","interactions":[],"lastModifiedDate":"2017-03-03T11:11:45","indexId":"70176504","displayToPublicDate":"2016-09-19T15:30:00","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2190,"text":"Journal of Avian Biology","active":true,"publicationSubtype":{"id":10}},"title":"Habitat selection by postbreeding female diving ducks: Influence of habitat attributes and conspecifics","docAbstract":"<p><span>Habitat selection studies of postbreeding waterfowl have rarely focused on within-wetland attributes such as water depth, escape cover, and food availability. Flightless waterfowl must balance habitat selection between avoiding predation risks and feeding. Reproductively successful female ducks face the greatest challenges because they begin the definitive prebasic molt at or near the end of brood rearing, when their body condition is at a low point. We assessed the relative importance of habitat attributes and group effects in habitat selection by postbreeding female lesser scaup </span><i>Aythya affinis</i><span> on a 2332-ha montane wetland complex during the peak flightless period (August) over seven years. Hypothesis-based habitat attributes included percent open water, open water:emergent edge density, water depth, percent flooded bare substrate, fetch (distance wind can travel unobstructed), group size, and several interactions representing functional responses to interannual variation in water levels. Surveys of uniquely marked females were conducted within randomly ordered survey blocks. We fitted two-part generalized linear mixed-effects models to counts of marked females within survey blocks, which allowed us to relate habitat attributes to relative probability of occurrence and, given the presence of a marked female, abundance of marked individuals. Postbreeding female scaup selected areas with water depths &gt; 40 cm, large open areas, and intermediate edge densities but showed no relation to flooded bare substrate, suggesting their habitat preferences were more influenced by avoiding predation risks and disturbances than in meeting foraging needs. Grouping behavior by postbreeding scaup suggests habitat selection is influenced in part by behavioral components and/or social information, conferring energetic and survival benefits (predation and disturbance risks) but potentially also contributing to competition for food resources. This study demonstrates the importance of incorporating group effects and interannual variability in habitat conditions when investigating habitat selection, particularly for seasons when waterfowl are aggregated.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/jav.01063","usgsCitation":"Austin, J.E., O’Neil, S.T., and Warren, J.M., 2017, Habitat selection by postbreeding female diving ducks: Influence of habitat attributes and conspecifics: Journal of Avian Biology, v. 48, no. 2, p. 295-308, https://doi.org/10.1111/jav.01063.","productDescription":"14 p.","startPage":"295","endPage":"308","ipdsId":"IP-071346","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":328730,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"2","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationDate":"2016-09-07","publicationStatus":"PW","scienceBaseUri":"57f7c63de4b0bc0bec09c88c","chorus":{"doi":"10.1111/jav.01063","url":"http://dx.doi.org/10.1111/jav.01063","publisher":"Wiley-Blackwell","authors":"Austin Jane E., O'Neil Shawn T., Warren Jeffrey M.","journalName":"Journal of Avian Biology","publicationDate":"9/2016","publiclyAccessibleDate":"9/7/2016"},"contributors":{"authors":[{"text":"Austin, Jane E. jaustin@usgs.gov","contributorId":2839,"corporation":false,"usgs":true,"family":"Austin","given":"Jane","email":"jaustin@usgs.gov","middleInitial":"E.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":649010,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neil, Shawn T.","contributorId":62533,"corporation":false,"usgs":true,"family":"O’Neil","given":"Shawn","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":649011,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Warren, Jeffrey M.","contributorId":16297,"corporation":false,"usgs":true,"family":"Warren","given":"Jeffrey","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":649012,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}