{"pageNumber":"2117","pageRowStart":"52900","pageSize":"25","recordCount":184662,"records":[{"id":70000426,"text":"70000426 - 2008 - Seasonal and diel movements of white sturgeon in the lower columbia river","interactions":[],"lastModifiedDate":"2012-03-08T17:16:37","indexId":"70000426","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal and diel movements of white sturgeon in the lower columbia river","docAbstract":"Continuous monitoring of the movements and depths used by white sturgeon Acipenser transmontanus with acoustic telemetry technologies in the lower Columbia River provided information on diel and seasonal migrations, local movements, and site fidelity. White sturgeon moved to shallower water at night and showed greater activity, inferred from rates of movement, than during daytime. The extent of local movement within a season was variable among fish; some fish readily moved among habitats while the movements of others were more constrained. White sturgeon were absent from the study area (river kilometers 45-52) during winter and returned from upstream during the spring, confirming an upstream seasonal migration in the fall and downstream migration in spring. The return of individual fish and reoccupation of areas previously inhabited showed that some white sturgeon exhibit site fidelity. This work shows that studies seeking to characterize habitat for white sturgeon need to be cognizant of diel migrations and site fidelity. We urge caution in the use of limited fish location data to describe habitats if diel activities and fine-scale movements are not known.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T07-027.1","issn":"00028487","usgsCitation":"Parsley, M., Popoff, N., Van Der Leeuw, B.K., and Wright, C., 2008, Seasonal and diel movements of white sturgeon in the lower columbia river: Transactions of the American Fisheries Society, v. 137, no. 4, p. 1007-1017, https://doi.org/10.1577/T07-027.1.","startPage":"1007","endPage":"1017","costCenters":[],"links":[{"id":203327,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18852,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T07-027.1"}],"volume":"137","issue":"4","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"4f4e49ffe4b07f02db5f7c1d","contributors":{"authors":[{"text":"Parsley, M.J.","contributorId":59542,"corporation":false,"usgs":true,"family":"Parsley","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":345713,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Popoff, N.D.","contributorId":47062,"corporation":false,"usgs":true,"family":"Popoff","given":"N.D.","affiliations":[],"preferred":false,"id":345711,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Van Der Leeuw, B. K.","contributorId":59159,"corporation":false,"usgs":true,"family":"Van Der Leeuw","given":"B.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":345712,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wright, C.D.","contributorId":104604,"corporation":false,"usgs":true,"family":"Wright","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":345714,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000433,"text":"70000433 - 2008 - Importance of unsaturated zone flow for simulating recharge in a humid climate","interactions":[],"lastModifiedDate":"2018-01-30T19:18:25","indexId":"70000433","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Importance of unsaturated zone flow for simulating recharge in a humid climate","docAbstract":"Transient recharge to the water table is often not well understood or quantified. Two approaches for simulating transient recharge in a ground water flow model were investigated using the Trout Lake watershed in north-central Wisconsin: (1) a traditional approach of adding recharge directly to the water table and (2) routing the same volume of water through an unsaturated zone column to the water table. Areas with thin (less than 1 m) unsaturated zones showed little difference in timing of recharge between the two approaches; when water was routed through the unsaturated zone, however, less recharge was delivered to the water table and more discharge occurred to the surface because recharge direction and magnitude changed when the water table rose to the land surface. Areas with a thick (15 to 26 m) unsaturated zone were characterized by multimonth lags between infiltration and recharge, and, in some cases, wetting fronts from precipitation events during the fall overtook and mixed with infiltration from the previous spring snowmelt. Thus, in thicker unsaturated zones, the volume of water infiltrated was properly simulated using the traditional approach, but the timing was different from simulations that included unsaturated zone flow. Routing of rejected recharge and ground water discharge at land surface to surface water features also provided a better simulation of the observed flow regime in a stream at the basin outlet. These results demonstrate that consideration of flow through the unsaturated zone may be important when simulating transient ground water flow in humid climates with shallow water tables.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2007.00427.x","issn":"17456584","usgsCitation":"Hunt, R.J., Prudic, D.E., Walker, J., and Anderson, M.P., 2008, Importance of unsaturated zone flow for simulating recharge in a humid climate: Ground Water, v. 46, no. 4, p. 551-560, https://doi.org/10.1111/j.1745-6584.2007.00427.x.","startPage":"551","endPage":"560","costCenters":[],"links":[{"id":476502,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1745-6584.2007.00427.x","text":"Publisher Index Page"},{"id":18853,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2007.00427.x"},{"id":203430,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-07-04","publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db64870e","contributors":{"authors":[{"text":"Hunt, R. J.","contributorId":40164,"corporation":false,"usgs":true,"family":"Hunt","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":345716,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prudic, David E. deprudic@usgs.gov","contributorId":3430,"corporation":false,"usgs":true,"family":"Prudic","given":"David","email":"deprudic@usgs.gov","middleInitial":"E.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":345715,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walker, J.F.","contributorId":86743,"corporation":false,"usgs":true,"family":"Walker","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":345717,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, Marilyn P.","contributorId":102970,"corporation":false,"usgs":true,"family":"Anderson","given":"Marilyn","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":345718,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000434,"text":"70000434 - 2008 - Effect of imbalanced nutrients and immigration on Prymnesium parvum community dominance and toxicity: Results from in-lake microcosm experiments","interactions":[],"lastModifiedDate":"2012-03-08T17:16:34","indexId":"70000434","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":870,"text":"Aquatic Microbial Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Effect of imbalanced nutrients and immigration on Prymnesium parvum community dominance and toxicity: Results from in-lake microcosm experiments","docAbstract":"Prymnesium parvum, a haptophyte species, forms harmful blooms, including those that have caused severe fish kills in Texas, USA, over the past 6 yr. We studied P. parvum dynamics using in situ microcosm experiments at Lake Possum Kingdom, Texas, during 3 seasons (fall 2004, winter and spring 2005). Experimental treatments included full and partial nutrient enrichment (encompassing nitrogen [N] and phosphorus [P] deficient treatments), P. parvum immigration and combinations of these factors. In the control and N and P deficient treatments, P. parvum populations dominated the community, but only in the N deficient treatments did P. parvum experience a significant growth in the population. In contrast, when nutrients were not limiting, P. parvum tended to lose its competitive edge to other taxa such as chlorophytes, euglenophytes and diatoms, which then dominated the community. Population growth of P. parvum was also stimulated through immigration, but only during the winter experiment, a period of the year when bloom initiation is common. This finding suggests that movement into the water column may be an important process leading to P. parvum bloom initiation. Toxicity of P. parvum to fish was also affected by the nutrient changes: during conditions of no nutrient addition P. parvum was most toxic; intermediate toxicity was observed under N and P deficient conditions, and full nutrient enrichments resulted in nearly non-toxic conditions. ?? Inter-Research 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquatic Microbial Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3354/ame01199","issn":"09483055","usgsCitation":"Errera, R., Roelke, D.L., Kiesling, R., Brooks, B., Grover, J.P., Schwierzke, L., Urena-Boeck, F., Baker, J., and Pinckney, J., 2008, Effect of imbalanced nutrients and immigration on Prymnesium parvum community dominance and toxicity: Results from in-lake microcosm experiments: Aquatic Microbial Ecology, v. 52, no. 1, p. 33-44, https://doi.org/10.3354/ame01199.","startPage":"33","endPage":"44","costCenters":[],"links":[{"id":476599,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/ame01199","text":"Publisher Index Page"},{"id":203311,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18854,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/ame01199"}],"volume":"52","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db625621","contributors":{"authors":[{"text":"Errera, R.M.","contributorId":65206,"corporation":false,"usgs":true,"family":"Errera","given":"R.M.","affiliations":[],"preferred":false,"id":345725,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roelke, D. L.","contributorId":28342,"corporation":false,"usgs":true,"family":"Roelke","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":345720,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kiesling, R.L.","contributorId":62721,"corporation":false,"usgs":true,"family":"Kiesling","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":345723,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brooks, B.W.","contributorId":101781,"corporation":false,"usgs":true,"family":"Brooks","given":"B.W.","email":"","affiliations":[],"preferred":false,"id":345727,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Grover, J. P.","contributorId":20453,"corporation":false,"usgs":true,"family":"Grover","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":345719,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schwierzke, L.","contributorId":83238,"corporation":false,"usgs":true,"family":"Schwierzke","given":"L.","email":"","affiliations":[],"preferred":false,"id":345726,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Urena-Boeck, F.","contributorId":58380,"corporation":false,"usgs":true,"family":"Urena-Boeck","given":"F.","email":"","affiliations":[],"preferred":false,"id":345722,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Baker, J.W.","contributorId":46525,"corporation":false,"usgs":true,"family":"Baker","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":345721,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pinckney, J.L.","contributorId":62722,"corporation":false,"usgs":true,"family":"Pinckney","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":345724,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70000405,"text":"70000405 - 2008 - Modeling axisymmetric flow and transport","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000405","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Modeling axisymmetric flow and transport","docAbstract":"Unmodified versions of common computer programs such as MODFLOW, MT3DMS, and SEAWAT that use Cartesian geometry can accurately simulate axially symmetric ground water flow and solute transport. Axisymmetric flow and transport are simulated by adjusting several input parameters to account for the increase in flow area with radial distance from the injection or extraction well. Logarithmic weighting of interblock transmissivity, a standard option in MODFLOW, can be used for axisymmetric models to represent the linear change in hydraulic conductance within a single finite-difference cell. Results from three test problems (ground water extraction, an aquifer push-pull test, and upconing of saline water into an extraction well) show good agreement with analytical solutions or with results from other numerical models designed specifically to simulate the axisymmetric geometry. Axisymmetric models are not commonly used but can offer an efficient alternative to full three-dimensional models, provided the assumption of axial symmetry can be justified. For the upconing problem, the axisymmetric model was more than 1000 times faster than an equivalent three-dimensional model. Computational gains with the axisymmetric models may be useful for quickly determining appropriate levels of grid resolution for three-dimensional models and for estimating aquifer parameters from field tests.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2008.00445.x","issn":"17456584","usgsCitation":"Langevin, C., 2008, Modeling axisymmetric flow and transport: Ground Water, v. 46, no. 4, p. 579-590, https://doi.org/10.1111/j.1745-6584.2008.00445.x.","startPage":"579","endPage":"590","costCenters":[],"links":[{"id":203481,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18836,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2008.00445.x"}],"volume":"46","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-07-04","publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db6999a3","contributors":{"authors":[{"text":"Langevin, C.D.","contributorId":25976,"corporation":false,"usgs":true,"family":"Langevin","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":345662,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000422,"text":"70000422 - 2008 - Microsatellite markers for the endangered Roanoke logperch, Percina rex (Percidae) and their potential utility for other darter species","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000422","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","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":"Microsatellite markers for the endangered Roanoke logperch, Percina rex (Percidae) and their potential utility for other darter species","docAbstract":"The Roanoke logperch (Percina rex Jordan and Evermann), an endangered fish, occurs in only six watersheds in the Roanoke and Chowan river drainages of Virginia, USA. The species' population genetic structure is poorly known. We developed 16 microsatellite markers that were reliably scorable and polymorphic P. rex. Markers were also screened in seven other darter species of the genus Percina. Most markers exhibited successful amplification and polymorphism in several species. These markers may therefore prove useful for population genetic studies in other darters, a diverse but highly imperiled group. ?? 2008 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1755-0998.2007.02082.x","issn":"1755098X","usgsCitation":"Dutton, D., Roberts, J., Angermeier, P., and Hallerman, E., 2008, Microsatellite markers for the endangered Roanoke logperch, Percina rex (Percidae) and their potential utility for other darter species: Molecular Ecology Resources, v. 8, no. 4, p. 831-834, https://doi.org/10.1111/j.1755-0998.2007.02082.x.","startPage":"831","endPage":"834","costCenters":[],"links":[{"id":203382,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18850,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1755-0998.2007.02082.x"}],"volume":"8","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-06-28","publicationStatus":"PW","scienceBaseUri":"4f4e4a57e4b07f02db62e5c4","contributors":{"authors":[{"text":"Dutton, D.J.","contributorId":61934,"corporation":false,"usgs":true,"family":"Dutton","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":345706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roberts, J.H.","contributorId":84483,"corporation":false,"usgs":true,"family":"Roberts","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":345707,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Angermeier, P. L. 0000-0003-2864-170X","orcid":"https://orcid.org/0000-0003-2864-170X","contributorId":6410,"corporation":false,"usgs":true,"family":"Angermeier","given":"P. L.","affiliations":[],"preferred":false,"id":345704,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hallerman, E.M.","contributorId":23671,"corporation":false,"usgs":true,"family":"Hallerman","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":345705,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000435,"text":"70000435 - 2008 - Dispersal of Culex quinquefasciatus (Diptera: Culicidae) in a Hawaiian rain forest","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000435","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2385,"text":"Journal of Medical Entomology","active":true,"publicationSubtype":{"id":10}},"title":"Dispersal of Culex quinquefasciatus (Diptera: Culicidae) in a Hawaiian rain forest","docAbstract":"Introduced mosquito-borne pathogens avian malaria (Plasmodium relictum Grassi and Feletti) and avian pox virus (Avipoxvirus) have been implicated in the past extinctions and declines of Hawaiian avifauna and remain significant obstacles to the recovery and restoration of endemic Hawaiian birds. Effective management of avian disease will require extensive mosquito control efforts that are guided by the local ecology of the vector Culex quinquefasciatus Say (Diptera: Culicidae). During October and November 1997 and September through November 1998 five mark-release-recapture experiments with laboratory-reared Cx. quinquefasciatus were conducted in a native rain forest on Hawaii Island. Of the overall 66,047 fluorescent dye-marked and released females, 1,192 (1.8%) were recaptured in 43-52 CO2-baited traps operated for 10-12-d trapping periods. Recaptured mosquitoes were trapped in all directions and at distances up to 3 km from the release site. The cumulative mean distance traveled (MDTs) over the trapping period ranged from a high of 1.89 km after 11 d (September 1998) to a low of 0.81 km after 11 d (November 1998). Released mosquitoes moved predominately in a downwind direction and they seemed to use forestry roads as dispersal corridors. Applying an estimated MDT of 1.6 km to a geographical information system-generated map of the Hakalau Forest National Wildlife Refuge clearly demonstrated that the effective refuge area could be reduced 60% by mosquitoes infiltrating into managed refuge lands. These findings should have significant implications for the design of future refuges and development of effective mosquito-borne avian disease control strategies.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Medical Entomology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1603/0022-2585(2008)45[600:DOCQDC]2.0.CO;2","issn":"00222585","usgsCitation":"Lapointe, D., 2008, Dispersal of Culex quinquefasciatus (Diptera: Culicidae) in a Hawaiian rain forest: Journal of Medical Entomology, v. 45, no. 4, p. 600-609, https://doi.org/10.1603/0022-2585(2008)45[600:DOCQDC]2.0.CO;2.","startPage":"600","endPage":"609","costCenters":[],"links":[{"id":203475,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18855,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1603/0022-2585(2008)45[600:DOCQDC]2.0.CO;2"}],"volume":"45","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0219e4b0c8380cd4fea9","contributors":{"authors":[{"text":"Lapointe, D.A.","contributorId":69691,"corporation":false,"usgs":true,"family":"Lapointe","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":345728,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000409,"text":"70000409 - 2008 - Body mass of prefledging Emperor Geese Chen canagica: Large-scale effects of interspecific densities and food availability","interactions":[],"lastModifiedDate":"2018-08-19T20:06:29","indexId":"70000409","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1961,"text":"Ibis","active":true,"publicationSubtype":{"id":10}},"title":"Body mass of prefledging Emperor Geese Chen canagica: Large-scale effects of interspecific densities and food availability","docAbstract":"<p><span>We studied body mass of prefledging Emperor Geese&nbsp;</span><i>Chen canagica</i><span><span>&nbsp;</span>at three locations across the Yukon–Kuskokwim Delta, Alaska, during 1990–2004 to investigate whether large‐scale variation in body mass was related to interspecific competition for food. From 1990 to 2004, densities of Cackling Geese<span>&nbsp;</span></span><i>Branta hutchinsii minima</i><span><span>&nbsp;</span>more than doubled and were<span>&nbsp;</span></span><i>c</i><span>. 2–5× greater than densities of Emperor Geese, which were relatively constant over time. Body mass of prefledging Emperor Geese was strongly related (negatively) to interspecific densities of geese (combined density of Cackling and Emperor Geese) and positively related to measures of food availability (grazing lawn extent and net above‐ground primary productivity (NAPP)). Grazing by geese resulted in consumption of ≥&nbsp;90% of the NAPP that occurred in grazing lawns during the brood‐rearing period, suggesting that density‐dependent interspecific competition was from exploitation of common food resources. Efforts to increase the population size of Emperor Geese would benefit from considering competitive interactions among goose species and with forage plants.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1474-919X.2008.00814.x","issn":"00191019","usgsCitation":"Lake, B., Schmutz, J.A., Lindberg, M.S., Ely, C.R., Eldridge, W., and Broerman, F., 2008, Body mass of prefledging Emperor Geese Chen canagica: Large-scale effects of interspecific densities and food availability: Ibis, v. 150, no. 3, p. 527-540, https://doi.org/10.1111/j.1474-919X.2008.00814.x.","productDescription":"14 p.","startPage":"527","endPage":"540","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":476504,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1474-919x.2008.00814.x","text":"Publisher Index Page"},{"id":203680,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18839,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1474-919X.2008.00814.x"}],"volume":"150","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-07-09","publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ad40","contributors":{"authors":[{"text":"Lake, B.C.","contributorId":55947,"corporation":false,"usgs":true,"family":"Lake","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":345669,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":345668,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lindberg, M. S.","contributorId":94413,"corporation":false,"usgs":false,"family":"Lindberg","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":345671,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ely, Craig R. 0000-0003-4262-0892 cely@usgs.gov","orcid":"https://orcid.org/0000-0003-4262-0892","contributorId":3214,"corporation":false,"usgs":true,"family":"Ely","given":"Craig","email":"cely@usgs.gov","middleInitial":"R.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":345673,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Eldridge, W.D.","contributorId":78451,"corporation":false,"usgs":true,"family":"Eldridge","given":"W.D.","email":"","affiliations":[],"preferred":false,"id":345670,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Broerman, F.J.","contributorId":94422,"corporation":false,"usgs":true,"family":"Broerman","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":345672,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70000416,"text":"70000416 - 2008 - Inferences about ungulate population dynamics derived from age ratios","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000416","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Inferences about ungulate population dynamics derived from age ratios","docAbstract":"Age ratios (e.g., calf:cow for elk and fawn:doe for deer) are used regularly to monitor ungulate populations. However, it remains unclear what inferences are appropriate from this index because multiple vital rate changes can influence the observed ratio. We used modeling based on elk (Cervus elaphus) life-history to evaluate both how age ratios are influenced by stage-specific fecundity and survival and how well age ratios track population dynamics. Although all vital rates have the potential to influence calf:adult female ratios (i.e., calf:xow ratios), calf survival explained the vast majority of variation in calf:adult female ratios due to its temporal variation compared to other vital rates. Calf:adult female ratios were positively correlated with population growth rate (??) and often successfully indicated population trajectories. However, calf:adult female ratios performed poorly at detecting imposed declines in calf survival, suggesting that only the most severe declines would be rapidly detected. Our analyses clarify that managers can use accurate, unbiased age ratios to monitor arguably the most important components contributing to sustainable ungulate populations, survival rate of young and ??. However, age ratios are not useful for detecting gradual declines in survival of young or making inferences about fecundity or adult survival in ungulate populations. Therefore, age ratios coupled with independent estimates of population growth or population size are necessary to monitor ungulate population demography and dynamics closely through time.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2193/2007-277","issn":"0022541X","usgsCitation":"Harris, N., Kauffman, M.J., and Mills, L.S., 2008, Inferences about ungulate population dynamics derived from age ratios: Journal of Wildlife Management, v. 72, no. 5, p. 1143-1151, https://doi.org/10.2193/2007-277.","startPage":"1143","endPage":"1151","costCenters":[],"links":[{"id":203503,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18845,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/2007-277"}],"volume":"72","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-12-13","publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5ee464","contributors":{"authors":[{"text":"Harris, N.C.","contributorId":76865,"corporation":false,"usgs":true,"family":"Harris","given":"N.C.","email":"","affiliations":[],"preferred":false,"id":345689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kauffman, M. J.","contributorId":44262,"corporation":false,"usgs":true,"family":"Kauffman","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":345688,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mills, L. S.","contributorId":100318,"corporation":false,"usgs":false,"family":"Mills","given":"L.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":345690,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000437,"text":"70000437 - 2008 - What was the groundwater quality before mining in a mineralized region? Lessons from the Questa Project","interactions":[],"lastModifiedDate":"2018-10-17T09:12:33","indexId":"70000437","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1817,"text":"Geosciences Journal","active":true,"publicationSubtype":{"id":10}},"title":"What was the groundwater quality before mining in a mineralized region? Lessons from the Questa Project","docAbstract":"The U.S. Geological Survey, in cooperation with the New Mexico Environment Department and supported by Molycorp, Inc (currently Chevron Minerals), has completed a 5-year investigation (2001-2006) to determine the pre-mining ground-water quality at Molycorp's Questa molybdenum mine in northern New Mexico. Current mine-site ground waters are often contaminated with mine-waste leachates and no data exists on premining ground-water quality so that pre-mining conditions must be inferred. Ground-water quality undisturbed by mining is often worse than New Mexico standards and data are needed to help establish closure requirements. The key to determining pre-mining conditions was to study the hydrogeochemistry of a proximal natural analog site, the Straight Creek catchment. Main rock types exposed to weathering include a Tertiary andesite and the Tertiary Amalia tuff (rhyolitic composition), both hydrothermally altered to various degrees. Two types of ground water are common in mineralized areas, acidic ground waters in alluvial debris fans with pH 3-4 and bedrock ground waters with pH 6-8. Siderite, ferrihydrite, rhodochrosite, amorphous to microcrystalline Al(OH)3, calcite, gypsum, barite, and amorphous silica mineral solubilities control concentrations of Fe(II), Fe(III), Mn(II), Al, Ca, Ba, and SiO2, depending on pH and solution composition. Concentrations at low pH are governed by element abundance and mineral weathering rates. Concentrations of Zn and Cd range from detection up to about 10 and 0.05 mg/L, respectively, and are derived primarily from sphalerite dissolution. Concentrations of Ni and Co range from detection up to 1 and 0.4 mg/L, respectively, and are derived primarily from pyrite dissolution. Concentrations of Ca and SO4 are derived from secondary gypsum dissolution and weathering of calcite and pyrite. Metal:sulfate concentration ratios are relatively constant for acidic waters, suggesting consistent weathering rates, independent of catchment. These trends, combined with lithology, mineralogy, and mineral solubility controls, provide useful constraints on pre-mining ground-water quality for the mine site where the lithology is known.","language":"English","publisher":"Springer","doi":"10.1007/s12303-008-0015-8","issn":"12264806","usgsCitation":"Nordstrom, D.K., 2008, What was the groundwater quality before mining in a mineralized region? Lessons from the Questa Project: Geosciences Journal, v. 12, no. 2, p. 139-149, https://doi.org/10.1007/s12303-008-0015-8.","productDescription":"11 p.","startPage":"139","endPage":"149","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":203574,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18857,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s12303-008-0015-8"}],"volume":"12","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-07-11","publicationStatus":"PW","scienceBaseUri":"4f4e49dfe4b07f02db5e3be4","contributors":{"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":345733,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000407,"text":"70000407 - 2008 - Genetic characterization of Kenai brown bears (Ursus arctos): Microsatellite and mitochondrial DNA control region variation in brown bears of the Kenai Peninsula, south central Alaska","interactions":[],"lastModifiedDate":"2018-08-20T19:24:33","indexId":"70000407","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Genetic characterization of Kenai brown bears (Ursus arctos): Microsatellite and mitochondrial DNA control region variation in brown bears of the Kenai Peninsula, south central Alaska","docAbstract":"We collected data from 20 biparentally inherited microsatellite loci, and nucleotide sequence from the maternally inherited mitochondrial DNA (mtDNA) control region, to determine levels of genetic variation of the brown bears (Ursus arctos L., 1758) of the Kenai Peninsula, south central Alaska. Nuclear genetic variation was similar to that observed in other Alaskan peninsular populations. We detected no significant inbreeding and found no evidence of population substructuring on the Kenai Peninsula. We observed a genetic signature of a bottleneck under the infinite alleles model (IAM), but not under the stepwise mutation model (SMM) or the two-phase model (TPM) of microsatellite mutation. Kenai brown bears have lower levels of mtDNA haplotypic diversity relative to most other brown bear populations in Alaska. ?? 2008 NRC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Zoology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/Z08-043","issn":"00084301","usgsCitation":"Jackson, J., Talbot, S.L., and Farley, S., 2008, Genetic characterization of Kenai brown bears (Ursus arctos): Microsatellite and mitochondrial DNA control region variation in brown bears of the Kenai Peninsula, south central Alaska: Canadian Journal of Zoology, v. 86, no. 7, p. 756-764, https://doi.org/10.1139/Z08-043.","startPage":"756","endPage":"764","costCenters":[],"links":[{"id":203411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18838,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/Z08-043"}],"volume":"86","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aeb77","contributors":{"authors":[{"text":"Jackson, J.V.","contributorId":74115,"corporation":false,"usgs":true,"family":"Jackson","given":"J.V.","affiliations":[],"preferred":false,"id":345667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Talbot, Sandra L. 0000-0002-3312-7214 stalbot@usgs.gov","orcid":"https://orcid.org/0000-0002-3312-7214","contributorId":140512,"corporation":false,"usgs":true,"family":"Talbot","given":"Sandra","email":"stalbot@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":345665,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Farley, S.","contributorId":73321,"corporation":false,"usgs":true,"family":"Farley","given":"S.","email":"","affiliations":[],"preferred":false,"id":345666,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000186,"text":"70000186 - 2008 - Fish assemblages of the Casiquiare River, a corridor and zoogeographical filter for dispersal between the Orinoco and Amazon basins","interactions":[],"lastModifiedDate":"2012-03-08T17:16:34","indexId":"70000186","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2193,"text":"Journal of Biogeography","active":true,"publicationSubtype":{"id":10}},"title":"Fish assemblages of the Casiquiare River, a corridor and zoogeographical filter for dispersal between the Orinoco and Amazon basins","docAbstract":"Aim: The aim of this study was to determine whether the Casiquiare River functions as a free dispersal corridor or as a partial barrier (i.e. filter) for the interchange of fish species of the Orinoco and Negro/Amazon basins using species assemblage patterns according to geographical location and environmental features. Location: The Casiquiare, Upper Orinoco and Upper Negro rivers in southern Venezuela, South America. Methods: Our study was based on an analysis of species presence/absence data and environmental information (11 habitat characteristics) collected by the authors and colleagues between the years 1984 and 1999. The data set consisted of 269 sampled sites and 452 fish species (> 50,000 specimens). A wide range of habitat types was included in the samples, and the collection sites were located at various points along the entire length of the Casiquiare main channel, at multiple sites on its tributary streams, as well as at various nearby sites outside the Casiquiare drainage, within the Upper Orinoco and Upper Rio Negro river systems. Most specimens and field data used in this analysis are archived in the Museo de Ciencias Naturales in Guanare, Venezuela. We performed canonical correspondence analysis (CCA) based on species presence/absence using two versions of the data set: one that eliminated sites having < 5 species and species occurring at < 5 sites; and another that eliminated sites having < 10 species and species occurring at < 10 sites. Cluster analysis was performed on sites based on species assemblage similarity, and a separate analysis was performed on species based on CCA loadings. Results: The CCA results for the two versions of the data set were qualitatively the same. The dominant environmental axis contrasted assemblages and sites associated with blackwater vs. clearwater conditions. Longitudinal position on the Casiquiare River was correlated (r2 = 0.33) with CCA axis-1 scores, reflecting clearwater conditions nearer to its origin (bifurcation of the Orinoco) and blackwater conditions nearer to its mouth (junction with the Rio Negro). The second CCA axis was most strongly associated with habitat size and structural complexity. Species associations derived from the unweighted pair-group average clustering method and pair-wise squared Euclidean distances calculated from species loadings on CCA axes 1 and 2 showed seven ecological groupings. Cluster analysis of species assemblages according to watershed revealed a stronger influence of local environmental conditions than of geographical proximity. Main conclusions: Fish assemblage composition is more consistently associated with local environmental conditions than with geographical position within the river drainages. Nonetheless, the results support the hypothesis that the mainstem Casiquiare represents a hydrochemical gradient between clearwaters at its origin and blackwaters at its mouth, and as such appears to function as a semi-permeable barrier (environmental filter) to dispersal and faunal exchanges between the partially vicariant fish faunas of the Upper Orinoco and Upper Negro rivers. ?? 2008 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Biogeography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2699.2008.01917.x","issn":"03050270","usgsCitation":"Winemiller, K., Lopez-Fernandez, H., Taphorn, D., Nico, L., and Duque, A., 2008, Fish assemblages of the Casiquiare River, a corridor and zoogeographical filter for dispersal between the Orinoco and Amazon basins: Journal of Biogeography, v. 35, no. 9, p. 1551-1563, https://doi.org/10.1111/j.1365-2699.2008.01917.x.","startPage":"1551","endPage":"1563","costCenters":[],"links":[{"id":203312,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18715,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2699.2008.01917.x"}],"volume":"35","issue":"9","noUsgsAuthors":false,"publicationDate":"2008-08-11","publicationStatus":"PW","scienceBaseUri":"4f4e49f7e4b07f02db5f23f7","contributors":{"authors":[{"text":"Winemiller, K.O.","contributorId":103394,"corporation":false,"usgs":true,"family":"Winemiller","given":"K.O.","affiliations":[],"preferred":false,"id":345074,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lopez-Fernandez, H.","contributorId":103395,"corporation":false,"usgs":true,"family":"Lopez-Fernandez","given":"H.","email":"","affiliations":[],"preferred":false,"id":345075,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taphorn, D.C.","contributorId":32480,"corporation":false,"usgs":true,"family":"Taphorn","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":345071,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nico, L.G. 0000-0002-4488-7737","orcid":"https://orcid.org/0000-0002-4488-7737","contributorId":83052,"corporation":false,"usgs":true,"family":"Nico","given":"L.G.","affiliations":[],"preferred":false,"id":345072,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Duque, A.B.","contributorId":97611,"corporation":false,"usgs":true,"family":"Duque","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":345073,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70000410,"text":"70000410 - 2008 - Depositional settings of sand beaches along whitewater rivers","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000410","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","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":"Depositional settings of sand beaches along whitewater rivers","docAbstract":"The numbers and sizes of sand beaches suitable for recreation along selected whitewater rivers in the western United States depend on sand concentrations, range of discharge and the size, frequency and type of depositional settings. River-width expansions downstream from constrictions are the predominant depositional setting for sand beaches in the upper Grand Canyon and along five Wild and Scenic Rivers in Idaho, but not along other rivers. Beaches located upstream from constrictions are rare, in general, except in the Grand Canyon. Beaches found in expansions without constrictions dominate depositional sites along the Yampa and Green Rivers, are fairly common along the rivers in Idaho, but are relatively rare in the Grand Canyon. The magnitude of flow expansion is a reliable predictor of beach size. Beaches located on the inside of curves are uncommon, in general, but can be important recreation sites. The mid-channel bar setting is the least important from a recreation standpoint because that setting is rare and beaches there are typically small, and emergent only at low flow. The frequency of beaches is highly variable among rivers and the concentration of sand in transport is only partially responsible. Of the rivers studied, the unregulated Yampa River carries the highest concentrations of suspended sand and has among the most beaches (1.2 beaches km-1). Emergent sand beaches are essentially nonexistent along the Deschutes River and are rare along other Oregon rivers, yet these rivers transport some sand. Sand beaches are fairly common (0.8-1.1 beaches km-1) along the regulated Colorado River, but are comparatively rare (0.6 beaches km-1) along the unregulated Middle Fork Salmon River. The suspended sand concentrations in study reaches of these two rivers are similar, and the difference in the frequency of beaches may be largely because the processes that create beach-deposition settings are less active along the Middle Fork Salmon.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1079","issn":"15351459","usgsCitation":"Vincent, K., and Andrews, E., 2008, Depositional settings of sand beaches along whitewater rivers: River Research and Applications, v. 24, no. 6, p. 771-788, https://doi.org/10.1002/rra.1079.","startPage":"771","endPage":"788","costCenters":[],"links":[{"id":476602,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/rra.1079","text":"Publisher Index Page"},{"id":203712,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18840,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1079"}],"volume":"24","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-04-16","publicationStatus":"PW","scienceBaseUri":"4f4e4813e4b07f02db4da73d","contributors":{"authors":[{"text":"Vincent, K.R.","contributorId":42563,"corporation":false,"usgs":true,"family":"Vincent","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":345675,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andrews, E.D.","contributorId":13922,"corporation":false,"usgs":true,"family":"Andrews","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":345674,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70000396,"text":"70000396 - 2008 - Development of new microsatellite loci and multiplex reactions for muskellunge (Esox masquinongy)","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000396","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","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":"Development of new microsatellite loci and multiplex reactions for muskellunge (Esox masquinongy)","docAbstract":"The muskellunge (Esox masquinongy) is a valued fisheries species throughout its native range. Numerous studies have documented performance and phenotypic differences among muskellunge populations, but genetic markers for assessment have been lacking. We characterized 14 microsatellite loci and developed five multiplex polymerase chain reactions. Successful amplification of northern pike (Esox lucius) was observed for seven loci. These microsatellites will be useful for analysing population structure, performance characteristics of propagated strains, and helping to develop and monitor hatchery management guidelines for muskellunge. ?? 2008 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1755-0998.2007.02075.x","issn":"1755098X","usgsCitation":"Sloss, B., Franckowiak, R., and Murphy, E., 2008, Development of new microsatellite loci and multiplex reactions for muskellunge (Esox masquinongy): Molecular Ecology Resources, v. 8, no. 4, p. 811-813, https://doi.org/10.1111/j.1755-0998.2007.02075.x.","startPage":"811","endPage":"813","costCenters":[],"links":[{"id":476603,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1755-0998.2007.02075.x","text":"Publisher Index Page"},{"id":18828,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1755-0998.2007.02075.x"},{"id":203443,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-06-28","publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65deac","contributors":{"authors":[{"text":"Sloss, Brian L.","contributorId":9754,"corporation":false,"usgs":true,"family":"Sloss","given":"Brian L.","affiliations":[],"preferred":false,"id":345629,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Franckowiak, R.P.","contributorId":39917,"corporation":false,"usgs":true,"family":"Franckowiak","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":345630,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Murphy, E.L.","contributorId":51428,"corporation":false,"usgs":true,"family":"Murphy","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":345631,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000374,"text":"70000374 - 2008 - Effectiveness of piscicides for controlling round gobies (Neogobius melanostomus)","interactions":[],"lastModifiedDate":"2018-03-13T17:59:48","indexId":"70000374","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","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":"Effectiveness of piscicides for controlling round gobies (Neogobius melanostomus)","docAbstract":"Round gobies (Neogobius melanostomus) were introduced to the Great Lakes presumably as a result of ballast water releases from seagoing freighters returning from European water bodies. These unwelcome fish have become established in the Great Lakes region and are expanding their range to suitable portions of other interior drainage basins including the Mississippi River traversing the central United States and the Trent-Severn waterway spanning south-central Ontario. If the invasion continues, use of chemical toxicants as a control measure may be necessary. Toxicity tests of the currently registered piscicides antimycin, rotenone, 3-trifluoromethyl-4-nitrophenol (TFM), and Bayluscide?? were conducted with three fish species native to the Great Lakes and round gobies collected from the Illinois Waterway. Tests indicated that round gobies are sensitive to all of the piscicides, however, the level of sensitivity is similar to that of the native fish species tested. Therefore, currently registered piscicides have limited potential to selectively remove round gobies. Bottom-release formulations of Bayluscide?? and antimycin were also evaluated as control agents for the normally bottom-dwelling round goby. Avoidance behavior tests demonstrated that the round goby did not react to the presence of either chemical. Therefore, the bottom-release formulations may have some application for the selective removal of round gobies, and may be one of the few tools presently available to fishery managers to help limit the range expansion of this invasive fish.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3394/0380-1330(2008)34[253:EOPFCR]2.0.CO;2","issn":"03801330","usgsCitation":"Schreier, T.M., Dawson, V.K., and Larson, W., 2008, Effectiveness of piscicides for controlling round gobies (Neogobius melanostomus): Journal of Great Lakes Research, v. 34, no. 2, p. 253-264, https://doi.org/10.3394/0380-1330(2008)34[253:EOPFCR]2.0.CO;2.","startPage":"253","endPage":"264","costCenters":[],"links":[{"id":203698,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18819,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3394/0380-1330(2008)34[253:EOPFCR]2.0.CO;2"}],"volume":"34","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a063ee4b0c8380cd51186","contributors":{"authors":[{"text":"Schreier, Theresa M. 0000-0001-7722-6292 tschreier@usgs.gov","orcid":"https://orcid.org/0000-0001-7722-6292","contributorId":3344,"corporation":false,"usgs":true,"family":"Schreier","given":"Theresa","email":"tschreier@usgs.gov","middleInitial":"M.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":345589,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dawson, V. K.","contributorId":48900,"corporation":false,"usgs":true,"family":"Dawson","given":"V.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":345587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Larson, W.","contributorId":74862,"corporation":false,"usgs":true,"family":"Larson","given":"W.","email":"","affiliations":[],"preferred":false,"id":345588,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000187,"text":"70000187 - 2008 - Coarse-clast ridge complexes of the Caribbean: A preliminary basis for distinguishing tsunami and storm-wave origins","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000187","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2451,"text":"Journal of Sedimentary Research","onlineIssn":"1938-3681","printIssn":"1527-1404","active":true,"publicationSubtype":{"id":10}},"title":"Coarse-clast ridge complexes of the Caribbean: A preliminary basis for distinguishing tsunami and storm-wave origins","docAbstract":"Coastal gravel-ridge complexes deposited on islands in the Caribbean Sea are recorders of past extreme-wave events that could be associated with either tsunamis or hurricanes. The ridge complexes of Bonaire, Jamaica, Puerto Rico (Isla de Mona), and Guadeloupe consist of polymodal clasts ranging in size from sand to coarse boulders that are derived from the adjacent coral reefs or subjacent rock platforms. Ridge-complex morphologies and crest elevations are largely controlled by availability of sediments, clast sizes, and heights of wave runup. The ridge complexes are internally organized, display textural sorting and a broad range of ages including historical events. Some display seaward-dipping beds and ridge-and-swale topography, and some terminate in fans or steep avalanche slopes. Together, the morphologic, sedimentologic, lithostratigraphic, and chronostratigraphic evidence indicates that shore-parallet ridge complexes composed of gravel and sand that are tens of meters wide and several meters thick are primarily storm-constructed features that have accumulated for a few centuries or millennia as a result of multiple high-frequency intense-wave events. They are not entirely the result of one or a few tsunamis as recently reported. Tsunami deposition may account for some of the lateral ridge-complex accretion or boulder fields and isolated blocks that are associated with the ridge complexes. Copyright ?? 2008, SEPM (Society for Sedimentary Geology).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Sedimentary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2110/jsr.2008.068","issn":"15271404","usgsCitation":"Morton, R., Richmond, B.M., Jaffe, B.E., and Gelfenbaum, G., 2008, Coarse-clast ridge complexes of the Caribbean: A preliminary basis for distinguishing tsunami and storm-wave origins: Journal of Sedimentary Research, v. 78, no. 9-10, p. 624-637, https://doi.org/10.2110/jsr.2008.068.","startPage":"624","endPage":"637","costCenters":[],"links":[{"id":203275,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18716,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2110/jsr.2008.068"}],"volume":"78","issue":"9-10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aec24","contributors":{"authors":[{"text":"Morton, R.A.","contributorId":53849,"corporation":false,"usgs":true,"family":"Morton","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":345076,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richmond, B. M.","contributorId":67902,"corporation":false,"usgs":true,"family":"Richmond","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":345077,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jaffe, B. E.","contributorId":88327,"corporation":false,"usgs":true,"family":"Jaffe","given":"B.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":345079,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gelfenbaum, G.","contributorId":72429,"corporation":false,"usgs":true,"family":"Gelfenbaum","given":"G.","email":"","affiliations":[],"preferred":false,"id":345078,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000380,"text":"70000380 - 2008 - Ordovician sponges from west-central and east-central Alaska and western Yukon Territory, Canada","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000380","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1104,"text":"Bulletin of Geosciences","active":true,"publicationSubtype":{"id":10}},"title":"Ordovician sponges from west-central and east-central Alaska and western Yukon Territory, Canada","docAbstract":"Moderate collections of fossil sponges have been recovered over a several-year period from a few scattered localities in west-central and east-central Alaska, and from westernmost Yukon Territory of Canada. Two fragments of the demosponge agelasiid cliefdenellid, Cliefdenella alaskaensis Stock, 1981, and mostly small unidentifiable additional fragments were recovered from a limestone debris flow bed in the White Mountain area, McGrath A-4 Quadrangle in west-central Alaska. Fragments of the agelasiid actinomorph girtyocoeliids Girtyocoeliana epiporata (Rigby & Potter, 1986) and Girtyocoelia minima n. sp., plus a specimen of the vaceletid colospongiid Corymbospongia amplia Rigby, Karl, Blodgett & Baichtal, 2005, were collected from probable Ashgillian age beds in the Livengood B-5 Quadrangle in east-central Alaska. A more extensive suite of corymbospongiids, including Corymbospongia betella Rigby, Potter & Blodgett, 1988, C. mica Rigby & Potter, 1986, and C.(?) perforata Rigby & Potter, 1986, along with the vaceletiid colospongiids Pseudo-imperatoria minima? (Rigby & Potter, 1986), and Pseudoimperatoria media (Rigby & Potter, 1986), and with the heteractinid Nucha naucum? Pickett & Jell, 1983, were recovered from uppermost part of the Jones Ridge Limestone (Ashgillian), on the south flank of Jones Ridge, in the Sheep Mountain Quadrangle, in westernmost Yukon Territory, Canada. The fossil sponges from the McGrath A-4 and Livengood B-5 quadrangles were recovered from attached Siberian terranes, and those from the Sheep Mountain Quadrangle were recovered from an allochthonous Laurentian terrane in the Yukon Territory.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3140/bull.geosci.2008.02.153","issn":"12141119","usgsCitation":"Rigby, J., Blodgett, R.B., and Britt, B., 2008, Ordovician sponges from west-central and east-central Alaska and western Yukon Territory, Canada: Bulletin of Geosciences, v. 83, no. 2, p. 153-168, https://doi.org/10.3140/bull.geosci.2008.02.153.","startPage":"153","endPage":"168","costCenters":[],"links":[{"id":476505,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3140/bull.geosci.2008.02.153","text":"Publisher Index Page"},{"id":18822,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3140/bull.geosci.2008.02.153"},{"id":203714,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aeee4b07f02db6912ae","contributors":{"authors":[{"text":"Rigby, J.K.","contributorId":40332,"corporation":false,"usgs":true,"family":"Rigby","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":345602,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blodgett, R. B.","contributorId":25176,"corporation":false,"usgs":true,"family":"Blodgett","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":345601,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Britt, B.B.","contributorId":45440,"corporation":false,"usgs":true,"family":"Britt","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":345603,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000395,"text":"70000395 - 2008 - Nearshore habitat and fish community associations of coaster brook trout in Isle Royale, Lake Superior","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000395","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Nearshore habitat and fish community associations of coaster brook trout in Isle Royale, Lake Superior","docAbstract":"We characterized the nearshore habitat and fish community composition of approximately 300 km of shoreline within and adjacent to the major embayments of Isle Royale, Lake Superior. Sampling yielded 17 species, of which 12 were widespread and represented a common element of the Lake Superior fish community, including cisco Coregonus artedi, lake whitefish C. clupeaformis, round whitefish Prosopium cylindraceum, lake trout Salvelinus namaycush, rainbow smelt Osmerus mordax, lake chub Couesius plumbeus, longnose sucker Catostomus catostomus, white sucker C. commersonii, trout-perch Percopsis omiscomaycus, ninespine stickleback Pungitius pungitius, burbot Lota lota, and slimy sculpin Cottus cognatus. The presence of brook trout S. fontinalis in an embayment was associated with the common species of the Isle Royale nearshore fish community, particularly cisco, longnose sucker, and round whitefish. However, brook trout were present in only five embayments and were common only in Tobin Harbor. Most Isle Royale embayments had broadly overlapping ranges of nearshore habitats. Within embayments, fish were distributed along a habitat gradient from less-protected rocky habitat near the mouth to highly protected habitat with mixed and finer substrates at the head. Embayments with brook trout had greater mean protection from the open lake, greater variation in depth, greater mean cover, and higher mean frequencies of large substrates (cobble, boulder, and bedrock). Within those embayments, brook trout were associated with habitat patches with higher mean frequencies of small substrates (particularly sand and coarse gravel). Within Tobin Harbor, brook trout were associated with midembayment habitat and species assemblages, especially those locations with a mixture of sand, gravel, and cobble substrates, an absence of bedrock, and the presence of round whitefish, white sucker, and trout-perch. Comparison of embayments with the model, Tobin Harbor, showed that six embayments without brook trout had very similar arrays of habitat. However, four embayments with brook trout had relatively different arrays of habitat from Tobin Harbor. These results suggest that there is potential for further recovery of brook trout populations across Isle Royale nearshore habitats. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T05-287.1","issn":"00028487","usgsCitation":"Gorman, O.T., Moore, S., Carlson, A., and Quinlan, H., 2008, Nearshore habitat and fish community associations of coaster brook trout in Isle Royale, Lake Superior: Transactions of the American Fisheries Society, v. 137, no. 4, p. 1252-1267, https://doi.org/10.1577/T05-287.1.","startPage":"1252","endPage":"1267","costCenters":[],"links":[{"id":18827,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T05-287.1"},{"id":203442,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"137","issue":"4","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db697f17","contributors":{"authors":[{"text":"Gorman, O. T.","contributorId":104605,"corporation":false,"usgs":true,"family":"Gorman","given":"O.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":345628,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, S.A.","contributorId":103397,"corporation":false,"usgs":true,"family":"Moore","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":345627,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlson, A.J.","contributorId":87664,"corporation":false,"usgs":true,"family":"Carlson","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":345625,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Quinlan, H.R.","contributorId":88465,"corporation":false,"usgs":true,"family":"Quinlan","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":345626,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000403,"text":"70000403 - 2008 - Paleomagnetic and structural evidence for oblique slip in a fault-related fold, Grayback monocline, Colorado","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000403","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Paleomagnetic and structural evidence for oblique slip in a fault-related fold, Grayback monocline, Colorado","docAbstract":"Significant fold-axis-parallel slip is accommodated in the folded strata of the Grayback monocline, northeastern Front Range, Colorado, without visible large strike-slip displacement on the fold surface. In many cases, oblique-slip deformation is partitioned; fold-axis-normal slip is accommodated within folds, and fold-axis-parallel slip is resolved onto adjacent strike-slip faults. Unlike partitioning strike-parallel slip onto adjacent strike-slip faults, fold-axis-parallel slip has deformed the forelimb of the Grayback monocline. Mean compressive paleostress orientations in the forelimb are deflected 15??-37?? clockwise from the regional paleostress orientation of the northeastern Front Range. Paleomagnetic directions from the Permian Ingleside Formation in the forelimb are rotated 16??-42?? clockwise about a bedding-normal axis relative to the North American Permian reference direction. The paleostress and paleomagnetic rotations increase with the bedding dip angle and decrease along strike toward the fold tip. These measurements allow for 50-120 m of fold-axis-parallel slip within the forelimb, depending on the kinematics of strike-slip shear. This resolved horizontal slip is nearly equal in magnitude to the ???180 m vertical throw across the fold. For 200 m of oblique-slip displacement (120 m of strike slip and 180 m of reverse slip), the true shortening direction across the fold is N90??E, indistinguishable from the regionally inferred direction of N90??E and quite different from the S53??E fold-normal direction. Recognition of this deformational style means that significant amounts of strike slip can be accommodated within folds without axis-parallel surficial faulting. ?? 2008 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B26178.1","issn":"00167606","usgsCitation":"Tetreault, J., Jones, C., Erslev, E., Larson, S., Hudson, M., and Holdaway, S., 2008, Paleomagnetic and structural evidence for oblique slip in a fault-related fold, Grayback monocline, Colorado: Geological Society of America Bulletin, v. 120, no. 7-8, p. 877-892, https://doi.org/10.1130/B26178.1.","startPage":"877","endPage":"892","costCenters":[],"links":[{"id":203713,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B26178.1"}],"volume":"120","issue":"7-8","noUsgsAuthors":false,"publicationDate":"2008-07-03","publicationStatus":"PW","scienceBaseUri":"4f4e4994e4b07f02db5b5f98","contributors":{"authors":[{"text":"Tetreault, J.","contributorId":9382,"corporation":false,"usgs":true,"family":"Tetreault","given":"J.","email":"","affiliations":[],"preferred":false,"id":345650,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, C.H.","contributorId":103775,"corporation":false,"usgs":true,"family":"Jones","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":345655,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Erslev, E.","contributorId":31510,"corporation":false,"usgs":true,"family":"Erslev","given":"E.","affiliations":[],"preferred":false,"id":345652,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Larson, S.","contributorId":62180,"corporation":false,"usgs":true,"family":"Larson","given":"S.","affiliations":[],"preferred":false,"id":345653,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hudson, M.","contributorId":86087,"corporation":false,"usgs":true,"family":"Hudson","given":"M.","email":"","affiliations":[],"preferred":false,"id":345654,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Holdaway, S.","contributorId":13358,"corporation":false,"usgs":true,"family":"Holdaway","given":"S.","email":"","affiliations":[],"preferred":false,"id":345651,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70000394,"text":"70000394 - 2008 - A bioenergetic model for zebrafish Danio rerio (Hamilton)","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000394","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2285,"text":"Journal of Fish Biology","active":true,"publicationSubtype":{"id":10}},"title":"A bioenergetic model for zebrafish Danio rerio (Hamilton)","docAbstract":"A bioenergetics model was developed from observed consumption, respiration and growth rates for zebrafish Danio rerio across a range (18-32?? C) of water temperatures, and evaluated with a 50 day laboratory trial at 28?? C. No significant bias in variable estimates was found during the validation trial; namely, predicted zebrafish mass generally agreed with observed mass. ?? 2008 The Authors.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Fish Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1095-8649.2008.01900.x","issn":"00221112","usgsCitation":"Chizinski, C., Sharma, B., Pope, K., and Patino, R., 2008, A bioenergetic model for zebrafish Danio rerio (Hamilton): Journal of Fish Biology, v. 73, no. 1, p. 35-43, https://doi.org/10.1111/j.1095-8649.2008.01900.x.","startPage":"35","endPage":"43","costCenters":[],"links":[{"id":18826,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1095-8649.2008.01900.x"},{"id":203318,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"73","issue":"1","noUsgsAuthors":false,"publicationDate":"2008-07-08","publicationStatus":"PW","scienceBaseUri":"4f4e4b28e4b07f02db6b1211","contributors":{"authors":[{"text":"Chizinski, C.J.","contributorId":50635,"corporation":false,"usgs":true,"family":"Chizinski","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":345623,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sharma, Bibek","contributorId":100106,"corporation":false,"usgs":false,"family":"Sharma","given":"Bibek","email":"","affiliations":[],"preferred":false,"id":345624,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pope, K.L.","contributorId":20454,"corporation":false,"usgs":true,"family":"Pope","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":345621,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Patino, R.","contributorId":39915,"corporation":false,"usgs":true,"family":"Patino","given":"R.","email":"","affiliations":[],"preferred":false,"id":345622,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000387,"text":"70000387 - 2008 - Egg size variation among tropical and temperate songbirds: An embryonic temperature hypothesis","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000387","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3165,"text":"Proceedings of the National Academy of Sciences of the United States of America","active":true,"publicationSubtype":{"id":10}},"title":"Egg size variation among tropical and temperate songbirds: An embryonic temperature hypothesis","docAbstract":"Species with 'slow' life history strategies (long life, low fecundity) are thought to produce high-quality offspring by investing in larger, but fewer, young. Larger eggs are indeed associated with fewer eggs across taxa and can yield higher-quality offspring. Tropical passerines appear to follow theory because they commonly exhibit slow life history strategies and produce larger, but fewer, eggs compared with northern species. Yet, I show here that relative egg mass (corrected for adult mass) varies extensively in the tropics and subtropics for the same clutch size, and this variation is unexplained. I propose a hypothesis to explain egg size variation both within the tropics and between latitudes: Relative egg mass increases in species with cooler egg temperatures and longer embryonic periods to offset associated increases in energetic requirements of embryos. Egg temperatures of birds are determined by parental incubation behavior and are often cooler among tropical passerines because of reduced parental attentiveness of eggs. Here, I show that cooler egg temperatures and longer embryonic periods explained the enigmatic variation in egg mass within and among regions, based on field studies in tropical Venezuela (36 species), subtropical Argentina (16 species), and north temperate Arizona (20 species). Alternative explanations are not supported. Thus, large egg sizes may reflect compensation for increased energetic requirements of cool egg temperatures and long embryonic periods that result from reduced parental attentiveness in tropical birds. ?? 2008 by The National Academy of Sciences of the USA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Proceedings of the National Academy of Sciences of the United States of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1073/pnas.0709366105","issn":"00278424","usgsCitation":"Martin, T.E., 2008, Egg size variation among tropical and temperate songbirds: An embryonic temperature hypothesis: Proceedings of the National Academy of Sciences of the United States of America, v. 105, no. 27, p. 9268-9271, https://doi.org/10.1073/pnas.0709366105.","startPage":"9268","endPage":"9271","costCenters":[],"links":[{"id":489993,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/2453717","text":"External Repository"},{"id":18824,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1073/pnas.0709366105"},{"id":203606,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"27","noUsgsAuthors":false,"publicationDate":"2008-07-08","publicationStatus":"PW","scienceBaseUri":"4f4e4a25e4b07f02db60f2b9","contributors":{"authors":[{"text":"Martin, T. E.","contributorId":10911,"corporation":false,"usgs":true,"family":"Martin","given":"T.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":345616,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000032,"text":"70000032 - 2008 - Methanogenic pathways of coal-bed gas in the Powder River Basin, United States: The geologic factor","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000032","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Methanogenic pathways of coal-bed gas in the Powder River Basin, United States: The geologic factor","docAbstract":"Coal-bed gas of the Tertiary Fort Union and Wasatch Formations in the Powder River Basin in Wyoming and Montana, U.S. was interpreted as microbial in origin by previous studies based on limited data on the gas and water composition and isotopes associated with the coal beds. To fully evaluate the microbial origin of the gas and mechanisms of methane generation, additional data for 165 gas and water samples from 7 different coal-bed methane-bearing coal-bed reservoirs were collected basinwide and correlated to the coal geology and stratigraphy. The C1/(C2 + C3) ratio and vitrinite reflectance of coal and organic shale permitted differentiation between microbial gas and transitional thermogenic gas in the central part of the basin. Analyses of methane ??13C and ??D, carbon dioxide ??13C, and water ??D values indicate gas was generated primarily from microbial CO2 reduction, but with significant gas generated by microbial methyl-type fermentation (aceticlastic) in some areas of the basin. Microbial CO2 reduction occurs basinwide, but is generally dominant in Paleocene Fort Union Formation coals in the central part of the basin, whereas microbial methyl-type fermentation is common along the northwest and east margins. Isotopically light methane ??13C is distributed along the basin margins where ??D is also depleted, indicating that both CO2-reduction and methyl-type fermentation pathways played major roles in gas generation, but gas from the latter pathway overprinted gas from the former pathway. More specifically, along the northwest basin margin gas generation by methyl-type fermentation may have been stimulated by late-stage infiltration of groundwater recharge from clinker areas, which flowed through highly fractured and faulted coal aquifers. Also, groundwater recharge controlled a change in gas composition in the shallow Eocene Wasatch Formation with the increase of nitrogen and decrease of methane composition of the coal-bed gas. Other geologic factors, such as burial, thermal and maturation history, lateral and vertical continuity, and coalification of the coal beds, also played a significant role in controlling methanogenic pathways and provided new perspectives on gas evolution and emplacement. The early-stage gas produced by CO2 reduction has mixed with transitional thermogenic gas in the deeper, central parts of the Powder River Basin to form 'old' gas, whereas along the basin margins the overprint of gas from methyl-type fermentation represents 'new' gas. Thus, a clear understanding of these geologic factors is necessary to relate the microbiological, biogeochemical, and hydrological processes involved in the generation of coal-bed gas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coal.2008.02.005","issn":"01665162","usgsCitation":"Flores, R.M., Rice, C.A., Stricker, G.D., Warden, A., and Ellis, M., 2008, Methanogenic pathways of coal-bed gas in the Powder River Basin, United States: The geologic factor: International Journal of Coal Geology, v. 76, no. 1-2, p. 52-75, https://doi.org/10.1016/j.coal.2008.02.005.","startPage":"52","endPage":"75","costCenters":[],"links":[{"id":18637,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2008.02.005"},{"id":203304,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4fe4b07f02db628805","contributors":{"authors":[{"text":"Flores, R. M.","contributorId":106899,"corporation":false,"usgs":true,"family":"Flores","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":344734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, C. A.","contributorId":106116,"corporation":false,"usgs":true,"family":"Rice","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":344733,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stricker, G. D.","contributorId":38977,"corporation":false,"usgs":true,"family":"Stricker","given":"G.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":344730,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Warden, A.","contributorId":41946,"corporation":false,"usgs":true,"family":"Warden","given":"A.","email":"","affiliations":[],"preferred":false,"id":344731,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ellis, M.S.","contributorId":64301,"corporation":false,"usgs":true,"family":"Ellis","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":344732,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70000436,"text":"70000436 - 2008 - Linking runoff response to burn severity after a wildfire","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000436","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Linking runoff response to burn severity after a wildfire","docAbstract":"Extreme floods often follow wildfire in mountainous watersheds. However, a quantitative relation between the runoff response and burn severity at the watershed scale has not been established. Runoff response was measured as the runoff coefficient C, which is equal to the peak discharge per unit drainage area divided by the average maximum 30 min rainfall intensity during each rain storm. The magnitude of the bum severity was expressed as the change in the normalized burn ratio. A new burn severity variable, hydraulic functional connectivity ?? was developed and incorporates both the magnitude of the burn severity and the spatial sequence of the bum severity along hillslope flow paths. The runoff response and the burn severity were measured in seven subwatersheds (0.24 to 0.85 km2) in the upper part of Rendija Canyon burned by the 2000 Cerro Grande Fire Dear Los Alamos, New Mexico, USA. A rainfall-discharge relation was determined for four of the subwatersheds with nearly the same bum severity. The peak discharge per unit drainage area Qupeak was a linear function of the maximum 30 min rainfall intensity I30. This function predicted a rainfall intensity threshold of 8.5 mm h-1 below which no runoff was generated. The runoff coefficient C = Qupeak/I30 was a linear function of the mean hydraulic functional connectivity of the subwatersheds. Moreover, the variability of the mean hydraulic functional connectivity was related to the variability of the mean runoff coefficient, and this relation provides physical insight into why the runoff response from the same subwatershed can vary for different rainstorms with the same rainfall intensity. Published in 2007 by John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.6806","issn":"08856087","usgsCitation":"Moody, J.A., Martin, D., Haire, S., and Kinner, D., 2008, Linking runoff response to burn severity after a wildfire: Hydrological Processes, v. 22, no. 13, p. 2063-2074, https://doi.org/10.1002/hyp.6806.","startPage":"2063","endPage":"2074","costCenters":[],"links":[{"id":203274,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18856,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6806"}],"volume":"22","issue":"13","noUsgsAuthors":false,"publicationDate":"2007-10-04","publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4d4d","contributors":{"authors":[{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":345730,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, D.A.","contributorId":61548,"corporation":false,"usgs":true,"family":"Martin","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":345731,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haire, S.L.","contributorId":23503,"corporation":false,"usgs":true,"family":"Haire","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":345729,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kinner, D.A.","contributorId":99265,"corporation":false,"usgs":true,"family":"Kinner","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":345732,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000314,"text":"70000314 - 2008 - Contrasting population trends of piscivorous seabirds in the Pribilof Islands: A 30-year perspective","interactions":[],"lastModifiedDate":"2018-08-19T20:07:41","indexId":"70000314","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1371,"text":"Deep-Sea Research Part II: Topical Studies in Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Contrasting population trends of piscivorous seabirds in the Pribilof Islands: A 30-year perspective","docAbstract":"The Pribilof Islands provide nesting habitat for one of the largest concentrations of piscivorous seabirds in the North Pacific region. Pribilof breeding populations of black-legged and red-legged kittiwakes (Rissa tridactyla and Rissa brevirostris), and common and thick-billed murres (Uria aalge and Uria lomvia) are supported by a highly productive marine food web. Productivity and temperature in this area are influenced by winter sea ice that frequently reaches its maximum extent near the Pribilofs. Although St. George and St. Paul islands, the two largest of the Pribilof group, are situated only 60 km apart, St. George is within 25 km of the shelf break, but St. Paul is approximately 90 km away. In contrast, the local contribution of sea ice-edge productivity in the spring is frequently closer to St. Paul than to St. George. Central place foraging piscivorous seabirds nesting at St. Paul and St. George are likely differentially affected by the relative contributions of the shelf break and ice-edge environments based on juxtaposition. Within the past decade or so, sea ice in the Bering Sea has failed to reach the vicinity of the Pribilofs in some years, and predictions of warming in the future suggest the possibility that direct effects of the ice on the immediate Pribilof environment will be reduced. To evaluate the response of kittiwakes and murres on the two islands to conditions in their foraging environments, we examined population trends over the past 30 years based on data from the seabird monitoring program conducted by the Alaska Maritime National Wildlife Refuge and others. Spatial differences in trends have been more consistent than differences among species, with populations at St. Paul having more enduring declines than those at St. George. At St. George, black-legged kittiwakes and common murres have remained stable. Red-legged kittiwakes and thick-billed murres both declined, but began to rebound in the late 1980s, such that in 2005 population numbers for all four species at St. George were approximately equivalent to those observed in 1976. In contrast, at St. Paul Island, all four species have declined for most of this 30-year time series, with only black-legged kittiwakes showing increases in the past decade but still remaining far below 1976 numbers. Interestingly, rates of productivity for kittiwakes and for murres were similar between the two islands, suggesting similar responses to summer conditions and implicating differential mortality of post-fledging juveniles or adults from the two islands (i.e., if summer food stress was insufficient to cause differences in productivity, but sufficient to cause physiological consequences that reduced survival. Another possibility is immigration from St. Paul to St. George, probably by juveniles. ?? 2008 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Deep-Sea Research Part II: Topical Studies in Oceanography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.dsr2.2008.04.004","issn":"09670645","usgsCitation":"Byrd, G., Schmutz, J.A., and Renner, H., 2008, Contrasting population trends of piscivorous seabirds in the Pribilof Islands: A 30-year perspective: Deep-Sea Research Part II: Topical Studies in Oceanography, v. 55, no. 16-17, p. 1846-1855, https://doi.org/10.1016/j.dsr2.2008.04.004.","startPage":"1846","endPage":"1855","costCenters":[],"links":[{"id":203340,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18785,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.dsr2.2008.04.004"}],"volume":"55","issue":"16-17","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db62550e","contributors":{"authors":[{"text":"Byrd, G.V.","contributorId":39320,"corporation":false,"usgs":true,"family":"Byrd","given":"G.V.","email":"","affiliations":[],"preferred":false,"id":345423,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":345422,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Renner, H.M.","contributorId":6173,"corporation":false,"usgs":true,"family":"Renner","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":345421,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000398,"text":"70000398 - 2008 - Classification tree models for predicting distributions of michigan stream fish from landscape variables","interactions":[],"lastModifiedDate":"2012-03-08T17:16:37","indexId":"70000398","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Classification tree models for predicting distributions of michigan stream fish from landscape variables","docAbstract":"Traditionally, fish habitat requirements have been described from local-scale environmental variables. However, recent studies have shown that studying landscape-scale processes improves our understanding of what drives species assemblages and distribution patterns across the landscape. Our goal was to learn more about constraints on the distribution of Michigan stream fish by examining landscape-scale habitat variables. We used classification trees and landscape-scale habitat variables to create and validate presence-absence models and relative abundance models for Michigan stream fishes. We developed 93 presence-absence models that on average were 72% correct in making predictions for an independent data set, and we developed 46 relative abundance models that were 76% correct in making predictions for independent data. The models were used to create statewide predictive distribution and abundance maps that have the potential to be used for a variety of conservation and scientific purposes. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T07-119.1","issn":"00028487","usgsCitation":"Steen, P., Zorn, T., Seelbach, P., and Schaeffer, J., 2008, Classification tree models for predicting distributions of michigan stream fish from landscape variables: Transactions of the American Fisheries Society, v. 137, no. 4, p. 976-996, https://doi.org/10.1577/T07-119.1.","startPage":"976","endPage":"996","costCenters":[],"links":[{"id":476503,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2027.42/141481","text":"External Repository"},{"id":203363,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18830,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T07-119.1"}],"volume":"137","issue":"4","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db672b94","contributors":{"authors":[{"text":"Steen, P.J.","contributorId":65590,"corporation":false,"usgs":true,"family":"Steen","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":345635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zorn, T.G.","contributorId":11316,"corporation":false,"usgs":true,"family":"Zorn","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":345633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seelbach, P.W.","contributorId":69277,"corporation":false,"usgs":true,"family":"Seelbach","given":"P.W.","email":"","affiliations":[],"preferred":false,"id":345636,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schaeffer, J.S.","contributorId":42688,"corporation":false,"usgs":true,"family":"Schaeffer","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":345634,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000310,"text":"70000310 - 2008 - Using chemical and microbiological indicators to track the impacts from the land application of treated municipal wastewater and other sources on groundwater quality in a karstic springs basin","interactions":[],"lastModifiedDate":"2012-03-08T17:16:34","indexId":"70000310","displayToPublicDate":"2010-09-28T23:09:23","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"Using chemical and microbiological indicators to track the impacts from the land application of treated municipal wastewater and other sources on groundwater quality in a karstic springs basin","docAbstract":"Multiple chemical constituents (nutrients; N, O, H, C stable isotopes; 64 organic wastewater compounds, 16 pharmaceutical compounds) and microbiological indicators were used to assess the impact on groundwater quality from the land application of approximately 9.5 million liters per day of treated municipal sewage effluent to a sprayfield in the 960-km2 Ichetucknee Springs basin, northern Florida. Enriched stable isotope signatures (?? 18O and ??2H) were found in water from the effluent reservoir and a sprayfield monitoring well (MW-7) due to evaporation; however, groundwater samples downgradient from the sprayfield have ??18O and ??2H concentrations that represented recharge of meteoric water. Boron and chloride concentrations also were elevated in water from the sprayfield effluent reservoir and MW-7, but concentrations in groundwater decreased substantially with distance downgradient to background levels in the springs (about 12 km) and indicated at least a tenfold dilution factor. Nitrate-nitrogen isotope (??15N-NO3) values above 10 ??? in most water samples were indicative of organic nitrogen sources except Blue Hole Spring (??15N-NO3 = 4.6-4.9 ???), which indicated an inorganic source of nitrogen (fertilizers). The detection of low concentrations the insect repellent N,N-diethyl-metatoluamide (DEET), and other organic compounds associated with domestic wastewater in Devil's Eye Spring indicated that leakage from a nearby septic tank drainfield likely has occurred. Elevated levels of fecal coliforms and enterococci were found in Blue Hole Spring during higher flow conditions, which likely resulted from hydraulic connections to upgradient sinkholes and are consistent with previoius dye-trace studies. Enteroviruses were not detected in the sprayfield effluent reservoir, but were found in low concentrations in water samples from a downgradient well and Blue Hole Spring during high-flow conditions indicating a human wastewater source. The Upper Floridan aquifer in the Ichetucknee Springs basin is highly vulnerable to contamination from multiple anthropogenic sources throughout the springs basin. ?? 2007 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00254-007-1033-y","issn":"09430105","usgsCitation":"Katz, B., and Griffin, D., 2008, Using chemical and microbiological indicators to track the impacts from the land application of treated municipal wastewater and other sources on groundwater quality in a karstic springs basin: Environmental Geology, v. 55, no. 4, p. 801-821, https://doi.org/10.1007/s00254-007-1033-y.","startPage":"801","endPage":"821","costCenters":[],"links":[{"id":203270,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18781,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00254-007-1033-y"}],"volume":"55","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-10-05","publicationStatus":"PW","scienceBaseUri":"4f4e4a16e4b07f02db603c72","contributors":{"authors":[{"text":"Katz, B. G.","contributorId":82702,"corporation":false,"usgs":true,"family":"Katz","given":"B. G.","affiliations":[],"preferred":false,"id":345397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Griffin, Dale W.","contributorId":23668,"corporation":false,"usgs":true,"family":"Griffin","given":"Dale W.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":345396,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}