Magnetic susceptibility was measured for 700 samples of drill core from thirteen drill holes in the porphyry copper-molybdenum deposit of the Stinkingwater mining district in the Absaroka Mountains, Wyoming. The magnetic susceptibility measurements, chemical analyses, and alteration class provided a database for study of magnetic susceptibility in these altered rocks. The distribution of the magnetic susceptibilities for all samples is multi-modal, with overlapping peaked distributions for samples in the propylitic and phyllic alteration class, a tail of higher susceptibilities for potassic alteration, and an approximately uniform distribution over a narrow range at the highest susceptibilities for unaltered rocks. Samples from all alteration and mineralization classes show susceptibilities across a wide range of values. Samples with secondary (supergene) alteration due to oxidation or enrichment show lower susceptibilities than primary (hypogene) alteration rock. Observed magnetic susceptibility variations and the monolithological character of the host rock suggest that the variations are due to varying degrees of alteration of blocks of rock between fractures that conducted hydrothermal fluids. Alteration of rock from the fractures inward progressively reduces the bulk magnetic susceptibility of the rock. The model introduced in this paper consists of a simulation of the fracture pattern and a simulation of the alteration of the rock between fractures. A multifractal model generated from multiplicative cascades with unequal ratios produces distributions statistically similar to the observed distributions. The reduction in susceptibility in the altered rocks was modelled as a diffusion process operating on the fracture distribution support. The average magnetic susceptibility was then computed for each block. For the purpose of comparing the model results with observation, the simulated magnetic susceptibilities were then averaged over the same interval as the measured data. Comparisons of the model and data from drillholes show good but not perfect agreement.
","language":"English","publisher":"Copernicus Publications","doi":"10.5194/npg-12-587-2005","usgsCitation":"Gettings, M.E., 2005, Multifractal magnetic susceptibility distribution models of hydrothermally altered rocks in the Needle Creek Igneous Center of the Absaroka Mountains, Wyoming: Nonlinear Processes in Geophysics, v. 12, no. 5, p. 587-601, https://doi.org/10.5194/npg-12-587-2005.","productDescription":"15 p.","startPage":"587","endPage":"601","numberOfPages":"15","costCenters":[],"links":[{"id":477934,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/npg-12-587-2005","text":"Publisher Index Page"},{"id":238150,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Absaroka Mountains, Needle Creek Igneous Center","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109.654541015625,\n 44.045154472558046\n ],\n [\n -109.42520141601561,\n 44.045154472558046\n ],\n [\n -109.42520141601561,\n 43.9\n ],\n [\n -109.654541015625,\n 43.9\n ],\n [\n -109.654541015625,\n 44.045154472558046\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"12","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-06-10","publicationStatus":"PW","scienceBaseUri":"505a6026e4b0c8380cd71311","contributors":{"authors":[{"text":"Gettings, Mark E. 0000-0002-2910-2321 mgetting@usgs.gov","orcid":"https://orcid.org/0000-0002-2910-2321","contributorId":602,"corporation":false,"usgs":true,"family":"Gettings","given":"Mark","email":"mgetting@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":415729,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70029548,"text":"70029548 - 2005 - Time-dependent earthquake probabilities","interactions":[],"lastModifiedDate":"2012-03-12T17:20:53","indexId":"70029548","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Time-dependent earthquake probabilities","docAbstract":"We have attempted to provide a careful examination of a class of approaches for estimating the conditional probability of failure of a single large earthquake, particularly approaches that account for static stress perturbations to tectonic loading as in the approaches of Stein et al. (1997) and Hardebeck (2004). We have loading as in the framework based on a simple, generalized rate change formulation and applied it to these two approaches to show how they relate to one another. We also have attempted to show the connection between models of seismicity rate changes applied to (1) populations of independent faults as in background and aftershock seismicity and (2) changes in estimates of the conditional probability of failures of different members of a the notion of failure rate corresponds to successive failures of different members of a population of faults. The latter application requires specification of some probability distribution (density function of PDF) that describes some population of potential recurrence times. This PDF may reflect our imperfect knowledge of when past earthquakes have occurred on a fault (epistemic uncertainty), the true natural variability in failure times, or some combination of both. We suggest two end-member conceptual single-fault models that may explain natural variability in recurrence times and suggest how they might be distinguished observationally. When viewed deterministically, these single-fault patch models differ significantly in their physical attributes, and when faults are immature, they differ in their responses to stress perturbations. Estimates of conditional failure probabilities effectively integrate over a range of possible deterministic fault models, usually with ranges that correspond to mature faults. Thus conditional failure probability estimates usually should not differ significantly for these models. Copyright 2005 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2004JB003405","issn":"01480227","usgsCitation":"Gomberg, J., Belardinelli, M., Cocco, M., and Reasenberg, P., 2005, Time-dependent earthquake probabilities: Journal of Geophysical Research B: Solid Earth, v. 110, no. 5, p. 1-12, https://doi.org/10.1029/2004JB003405.","startPage":"1","endPage":"12","numberOfPages":"12","costCenters":[],"links":[{"id":210461,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2004JB003405"},{"id":237385,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"110","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-05-07","publicationStatus":"PW","scienceBaseUri":"505bb3b9e4b08c986b325f84","contributors":{"authors":[{"text":"Gomberg, J.","contributorId":95994,"corporation":false,"usgs":true,"family":"Gomberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":423235,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Belardinelli, M.E.","contributorId":107464,"corporation":false,"usgs":true,"family":"Belardinelli","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":423236,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cocco, M.","contributorId":70128,"corporation":false,"usgs":true,"family":"Cocco","given":"M.","email":"","affiliations":[],"preferred":false,"id":423234,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reasenberg, P.","contributorId":22913,"corporation":false,"usgs":true,"family":"Reasenberg","given":"P.","email":"","affiliations":[],"preferred":false,"id":423233,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029492,"text":"70029492 - 2005 - A frictional population model of seismicity rate change","interactions":[],"lastModifiedDate":"2012-03-12T17:20:52","indexId":"70029492","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"A frictional population model of seismicity rate change","docAbstract":"We study models of seismicity rate changes caused by the application of a static stress perturbation to a population of faults and discuss our results with respect to the model proposed by Dieterich (1994). These models assume distribution of nucleation sites (e.g., faults) obeying rate-state frictional relations that fail at constant rate under tectonic loading alone, and predicts a positive static stress step at time to will cause an immediate increased seismicity rate that decays according to Omori's law. We show one way in which the Dieterich model may be constructed from simple general idead, illustratted using numerically computed synthetic seismicity and mathematical formulation. We show that seismicity rate change predicted by these models (1) depend on the particular relationship between the clock-advanced failure and fault maturity, (2) are largest for the faults closest to failure at to, (3) depend strongly on which state evolution law faults obey, and (4) are insensitive to some types of population hetrogeneity. We also find that if individual faults fail repeatedly and populations are finite, at timescales much longer than typical aftershock durations, quiescence follows at seismicity rate increase regardless of the specific frictional relations. For the examined models the quiescence duration is comparable to the ratio of stress change to stressing rate ????/??,which occurs after a time comparable to the average recurrence interval of the individual faults in the population and repeats in the absence of any new load may pertubations; this simple model may partly explain observations of repeated clustering of earthquakes. Copyright 2005 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2004JB003404","issn":"01480227","usgsCitation":"Gomberg, J., Reasenberg, P., Cocco, M., and Belardinelli, M., 2005, A frictional population model of seismicity rate change: Journal of Geophysical Research B: Solid Earth, v. 110, no. 5, p. 1-10, https://doi.org/10.1029/2004JB003404.","startPage":"1","endPage":"10","numberOfPages":"10","costCenters":[],"links":[{"id":210627,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2004JB003404"},{"id":237603,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"110","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-04-22","publicationStatus":"PW","scienceBaseUri":"5059e3e4e4b0c8380cd462a4","contributors":{"authors":[{"text":"Gomberg, J.","contributorId":95994,"corporation":false,"usgs":true,"family":"Gomberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":422962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reasenberg, P.","contributorId":22913,"corporation":false,"usgs":true,"family":"Reasenberg","given":"P.","email":"","affiliations":[],"preferred":false,"id":422960,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cocco, M.","contributorId":70128,"corporation":false,"usgs":true,"family":"Cocco","given":"M.","email":"","affiliations":[],"preferred":false,"id":422961,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belardinelli, M.E.","contributorId":107464,"corporation":false,"usgs":true,"family":"Belardinelli","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":422963,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70027366,"text":"70027366 - 2005 - Scaling of flow distance in random self-similar channel networks","interactions":[],"lastModifiedDate":"2012-03-12T17:20:46","indexId":"70027366","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1692,"text":"Fractals","active":true,"publicationSubtype":{"id":10}},"title":"Scaling of flow distance in random self-similar channel networks","docAbstract":"Natural river channel networks have been shown in empirical studies to exhibit power-law scaling behavior characteristic of self-similar and self-affine structures. Of particular interest is to describe how the distribution of distance to the outlet changes as a function of network size. In this paper, networks are modeled as random self-similar rooted tree graphs and scaling of distance to the root is studied using methods in stochastic branching theory. In particular, the asymptotic expectation of the width function (number of nodes as a function of distance to the outlet) is derived under conditions on the replacement generators. It is demonstrated further that the branching number describing rate of growth of node distance to the outlet is identical to the length ratio under a Horton-Strahler ordering scheme as order gets large, again under certain restrictions on the generators. These results are discussed in relation to drainage basin allometry and an application to an actual drainage network is presented. ?? World Scientific Publishing Company.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fractals","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1142/S0218348X05002945","issn":"0218348X","usgsCitation":"Troutman, B., 2005, Scaling of flow distance in random self-similar channel networks: Fractals, v. 13, no. 4, p. 265-282, https://doi.org/10.1142/S0218348X05002945.","startPage":"265","endPage":"282","numberOfPages":"18","costCenters":[],"links":[{"id":211082,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1142/S0218348X05002945"},{"id":238256,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"4","noUsgsAuthors":false,"publicationDate":"2011-11-20","publicationStatus":"PW","scienceBaseUri":"505b8717e4b08c986b3162e9","contributors":{"authors":[{"text":"Troutman, B.M.","contributorId":73638,"corporation":false,"usgs":true,"family":"Troutman","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":413350,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70029187,"text":"70029187 - 2005 - 1-D/3-D geologic model of the Western Canada Sedimentary Basin","interactions":[],"lastModifiedDate":"2012-03-12T17:20:55","indexId":"70029187","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2789,"text":"Mountain Geologist","active":true,"publicationSubtype":{"id":10}},"title":"1-D/3-D geologic model of the Western Canada Sedimentary Basin","docAbstract":"The 3-D geologic model of the Western Canada Sedimentary Basin comprises 18 stacked intervals from the base of the Devonian Woodbend Group and age equivalent formations to ground surface; it includes an estimated thickness of eroded sediments based on 1-D burial history reconstructions for 33 wells across the study area. Each interval for the construction of the 3-D model was chosen on the basis of whether it is primarily composed of petroleum system elements of reservoir, hydrocarbon source, seal, overburden, or underburden strata, as well as the quality and areal distribution of well and other data. Preliminary results of the modeling support the following interpretations. Long-distance migration of hydrocarbons east of the Rocky Mountains is indicated by oil and gas accumulations in areas within which source rocks are thermally immature for oil and (or) gas. Petroleum systems in the basin are segmented by the northeast-trending Sweetgrass Arch; hydrocarbons west of the arch were from source rocks lying near or beneath the Rocky Mountains, whereas oil and gas east of the arch were sourced from the Williston Basin. Hydrocarbon generation and migration are primarily due to increased burial associated with the Laramide Orogeny. Hydrocarbon sources and migration were also influenced by the Lower Cretaceous sub-Mannville unconformity. In the Peace River Arch area of northern Alberta, Jurassic and older formations exhibit high-angle truncations against the unconformity. Potential Paleozoic though Mesozoic hydrocarbon source rocks are in contact with overlying Mannville Group reservoir facies. In contrast, in Saskatchewan and southern Alberta the contacts are parallel to sub-parallel, with the result that hydrocarbon source rocks are separated from the Mannville Group by seal-forming strata within the Jurassic. Vertical and lateral movement of hydrocarbons along the faults in the Rocky Mountains deformed belt probably also resulted in mixing of oil and gas from numerous source rocks in Alberta.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"Higley, D., Henry, M., Roberts, L.N., and Steinshouer, D., 2005, 1-D/3-D geologic model of the Western Canada Sedimentary Basin: Mountain Geologist, v. 42, no. 2, p. 53-66.","startPage":"53","endPage":"66","numberOfPages":"14","costCenters":[],"links":[{"id":237399,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e21fe4b0c8380cd4598f","contributors":{"authors":[{"text":"Higley, D.K. 0000-0001-8024-9954","orcid":"https://orcid.org/0000-0001-8024-9954","contributorId":90261,"corporation":false,"usgs":true,"family":"Higley","given":"D.K.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":421675,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Henry, M.","contributorId":19766,"corporation":false,"usgs":true,"family":"Henry","given":"M.","affiliations":[],"preferred":false,"id":421673,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, L. N. R.","contributorId":53419,"corporation":false,"usgs":true,"family":"Roberts","given":"L.","email":"","middleInitial":"N. R.","affiliations":[],"preferred":false,"id":421674,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steinshouer, D.W.","contributorId":18803,"corporation":false,"usgs":true,"family":"Steinshouer","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":421672,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70027849,"text":"70027849 - 2005 - Can superior natural amenities create high-quality employment opportunities? The case of nonconsumptive river recreation in central Idaho","interactions":[],"lastModifiedDate":"2018-03-08T12:31:48","indexId":"70027849","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3405,"text":"Society and Natural Resources","active":true,"publicationSubtype":{"id":10}},"title":"Can superior natural amenities create high-quality employment opportunities? The case of nonconsumptive river recreation in central Idaho","docAbstract":"Central Idaho has superior environmental amenities, as evidenced by exceptionally high-value tourism, such as guided whitewater rafting. The focus of our study concerns the attainment of high-quality jobs in a high-quality natural environment. We estimate cumulative wage rate effects unique to nonconsumptive river recreation in central Idaho for comparison with other sectors. The cumulative effects are based on a detailed survey of recreation spending and a modified synthesized input–output model. Cumulative wage rate effects support using the abundance of environmental amenities to expand and attract high-wage, environmentally sensitive firms, as opposed to expanded tourism to improve employment quality.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/08941920591005304","usgsCitation":"McKean, J., Johnson, D., Johnson, R.L., and Taylor, R., 2005, Can superior natural amenities create high-quality employment opportunities? The case of nonconsumptive river recreation in central Idaho: Society and Natural Resources, v. 18, no. 8, p. 749-758, https://doi.org/10.1080/08941920591005304.","productDescription":"10 p.","startPage":"749","endPage":"758","costCenters":[],"links":[{"id":238400,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f33ae4b0c8380cd4b695","contributors":{"authors":[{"text":"McKean, J.R.","contributorId":101076,"corporation":false,"usgs":true,"family":"McKean","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":415543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, D.M.","contributorId":58266,"corporation":false,"usgs":true,"family":"Johnson","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":415541,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Richard L.","contributorId":169575,"corporation":false,"usgs":false,"family":"Johnson","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":415540,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Taylor, R.G.","contributorId":70994,"corporation":false,"usgs":true,"family":"Taylor","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":415542,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70027404,"text":"70027404 - 2005 - Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah","interactions":[],"lastModifiedDate":"2018-10-03T11:29:42","indexId":"70027404","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5360,"text":"American Fisheries Society Symposium","active":true,"publicationSubtype":{"id":24}},"title":"Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah","docAbstract":"Relations between stream habitat and urban land-use intensity were examined in 90 stream reaches located in or near the metropolitan areas of Salt Lake City, Utah (SLC); Birmingham, Alabama (BIR); and Boston, Massachusetts (BOS). Urban intensity was based on a multi-metric index (urban intensity index or UII) that included measures of land cover, socioeconomic organization, and urban infrastructure. Twenty-eight physical variables describing channel morphology, hydraulic properties, and streambed conditions were examined. None of the habitat variables was significantly correlated with urbanization intensity in all three study areas. Urbanization effects on stream habitat were less apparent for streams in SLC and BIR, owing to the strong influence of basin slope (SLC) and drought conditions (BIR) on local flow regimes. Streamflow in the BOS study area was not unduly influenced by similar conditions of climate and physiography, and habitat conditions in these streams were more responsive to urbanization. Urbanization in BOS contributed to higher discharge, channel deepening, and increased loading of fine-grained particles to stream channels. The modifying influence of basin slope and climate on hydrology of streams in SLC and BIR limited our ability to effectively compare habitat responses among different urban settings and identify common responses that might be of interest to restoration or water management programs. Successful application of land-use models such as the UII to compare urbanization effects on stream habitat in different environmental settings must account for inherent differences in natural and anthropogenic factors affecting stream hydrology and geomorphology. The challenge to future management of urban development is to further quantify these differences by building upon existing models, and ultimately develop a broader understanding of urbanization effects on aquatic ecosystems.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Effects of Urbanization on Stream Ecosystems","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Fisheries Society","issn":"08922284","usgsCitation":"Short, T., Giddings, E., Zappia, H., and Coles, J., 2005, Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah, chap. of Effects of Urbanization on Stream Ecosystems: American Fisheries Society Symposium, v. 47, p. 317-332.","productDescription":"16 p.","startPage":"317","endPage":"332","numberOfPages":"16","costCenters":[],"links":[{"id":238259,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":358058,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://fisheries.org/bookstore/all-titles/afs-symposia/x54047xm/"}],"volume":"47","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbe44e4b08c986b3294c0","contributors":{"authors":[{"text":"Short, T.M.","contributorId":50626,"corporation":false,"usgs":true,"family":"Short","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":413514,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Giddings, E.M.P.","contributorId":36348,"corporation":false,"usgs":true,"family":"Giddings","given":"E.M.P.","email":"","affiliations":[],"preferred":false,"id":413513,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zappia, H.","contributorId":94474,"corporation":false,"usgs":true,"family":"Zappia","given":"H.","affiliations":[],"preferred":false,"id":413516,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Coles, J.F.","contributorId":80257,"corporation":false,"usgs":true,"family":"Coles","given":"J.F.","affiliations":[],"preferred":false,"id":413515,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029111,"text":"70029111 - 2005 - Complex channel responses to changes in stream flow and sediment supply on the lower Duchesne River, Utah","interactions":[],"lastModifiedDate":"2012-03-12T17:20:55","indexId":"70029111","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1801,"text":"Geomorphology","active":true,"publicationSubtype":{"id":10}},"title":"Complex channel responses to changes in stream flow and sediment supply on the lower Duchesne River, Utah","docAbstract":"Channel responses to flow depletions in the lower Duchesne River over the past 100 years have been highly complex and variable in space and time. In general, sand-bed reaches adjusted to all perturbations with bed-level changes, whereas the gravel-bed reaches adjusted primarily through width changes. Gravel-bed reaches aggraded only when gravel was supplied to the channel through local bank erosion and degraded only during extreme flood events. A 50% reduction in stream flow and an increase in fine sediment supply to the study area occurred in the first third of the 20th century. The gravel-bed reach responded primarily with channel narrowing, whereas bed aggradation and four large-scale avulsions occurred in the sand-bed reaches. These avulsions almost completely replaced a section of sinuous channel about 14 km long with a straighter section about 7 km long. The most upstream avulsion, located near a break in valley slope and the transition from a gravel bed upstream and a sand bed downstream, transformed a sinuous sand-bed reach into a braided gravel-bed reach and eventually into a meandering gravel-bed reach over a 30-year period. Later, an increase in flood magnitudes and durations caused widening and secondary bed aggradation in the gravel-bed reaches, whereas the sand-bed reaches incised and narrowed. Water diversions since the 1950s have progressively eliminated moderate flood events, whereas larger floods have been less affected. The loss of frequent flooding has increased the duration and severity of drought periods during which riparian vegetation can establish along the channel margins. As a result, the channel has gradually narrowed throughout the study area since the late 1960s, despite the occasional occurrence of large floods. No tributaries enter the Duchesne River within the study area, so all reaches have experienced identical changes in stream flow and upstream sediment supply. ?? 2004 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomorphology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.geomorph.2004.06.007","issn":"0169555X","usgsCitation":"Gaeuman, D., Schmidt, J.C., and Wilcock, P., 2005, Complex channel responses to changes in stream flow and sediment supply on the lower Duchesne River, Utah: Geomorphology, v. 64, no. 3-4, p. 185-206, https://doi.org/10.1016/j.geomorph.2004.06.007.","startPage":"185","endPage":"206","numberOfPages":"22","costCenters":[],"links":[{"id":210443,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.geomorph.2004.06.007"},{"id":237360,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f90de4b0c8380cd4d3d5","contributors":{"authors":[{"text":"Gaeuman, D.","contributorId":73807,"corporation":false,"usgs":true,"family":"Gaeuman","given":"D.","email":"","affiliations":[],"preferred":false,"id":421368,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmidt, J. C.","contributorId":60245,"corporation":false,"usgs":true,"family":"Schmidt","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":421367,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilcock, P.R.","contributorId":36709,"corporation":false,"usgs":true,"family":"Wilcock","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":421366,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029114,"text":"70029114 - 2005 - The inverse problem of refraction travel times, part II: Quantifying refraction nonuniqueness using a three-layer model","interactions":[],"lastModifiedDate":"2012-03-12T17:20:54","indexId":"70029114","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3208,"text":"Pure and Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"The inverse problem of refraction travel times, part II: Quantifying refraction nonuniqueness using a three-layer model","docAbstract":"This paper is the second of a set of two papers in which we study the inverse refraction problem. The first paper, \"Types of Geophysical Nonuniqueness through Minimization,\" studies and classifies the types of nonuniqueness that exist when solving inverse problems depending on the participation of a priori information required to obtain reliable solutions of inverse geophysical problems. In view of the classification developed, in this paper we study the type of nonuniqueness associated with the inverse refraction problem. An approach for obtaining a realistic solution to the inverse refraction problem is offered in a third paper that is in preparation. The nonuniqueness of the inverse refraction problem is examined by using a simple three-layer model. Like many other inverse geophysical problems, the inverse refraction problem does not have a unique solution. Conventionally, nonuniqueness is considered to be a result of insufficient data and/or error in the data, for any fixed number of model parameters. This study illustrates that even for overdetermined and error free data, nonlinear inverse refraction problems exhibit exact-data nonuniqueness, which further complicates the problem of nonuniqueness. By evaluating the nonuniqueness of the inverse refraction problem, this paper targets the improvement of refraction inversion algorithms, and as a result, the achievement of more realistic solutions. The nonuniqueness of the inverse refraction problem is examined initially by using a simple three-layer model. The observations and conclusions of the three-layer model nonuniqueness study are used to evaluate the nonuniqueness of more complicated n-layer models and multi-parameter cell models such as in refraction tomography. For any fixed number of model parameters, the inverse refraction problem exhibits continuous ranges of exact-data nonuniqueness. Such an unfavorable type of nonuniqueness can be uniquely solved only by providing abundant a priori information. Insufficient a priori information during the inversion is the reason why refraction methods often may not produce desired results or even fail. This work also demonstrates that the application of the smoothing constraints, typical when solving ill-posed inverse problems, has a dual and contradictory role when applied to the ill-posed inverse problem of refraction travel times. This observation indicates that smoothing constraints may play such a two-fold role when applied to other inverse problems. Other factors that contribute to inverse-refraction-problem nonuniqueness are also considered, including indeterminacy, statistical data-error distribution, numerical error and instability, finite data, and model parameters. ?? Birkha??user Verlag, Basel, 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pure and Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00024-004-2616-0","issn":"00334553","usgsCitation":"Ivanov, J., Miller, R., Xia, J., and Steeples, D., 2005, The inverse problem of refraction travel times, part II: Quantifying refraction nonuniqueness using a three-layer model: Pure and Applied Geophysics, v. 162, no. 3, p. 461-477, https://doi.org/10.1007/s00024-004-2616-0.","startPage":"461","endPage":"477","numberOfPages":"17","costCenters":[],"links":[{"id":210494,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00024-004-2616-0"},{"id":237430,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"162","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad5fe4b08c986b323b92","contributors":{"authors":[{"text":"Ivanov, J.","contributorId":107068,"corporation":false,"usgs":true,"family":"Ivanov","given":"J.","email":"","affiliations":[],"preferred":false,"id":421378,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, R. D.","contributorId":92693,"corporation":false,"usgs":true,"family":"Miller","given":"R. D.","affiliations":[],"preferred":false,"id":421377,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":421376,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steeples, D.","contributorId":30422,"corporation":false,"usgs":true,"family":"Steeples","given":"D.","email":"","affiliations":[],"preferred":false,"id":421375,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029536,"text":"70029536 - 2005 - An updated global earthquake catalogue for stable continental regions: Reassessing the correlation with ancient rifts","interactions":[],"lastModifiedDate":"2020-04-29T13:31:04.952543","indexId":"70029536","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"An updated global earthquake catalogue for stable continental regions: Reassessing the correlation with ancient rifts","docAbstract":"We present an updated global earthquake catalogue for stable continental regions (SCRs; i.e. intraplate earthquakes) that is available on the Internet. Our database contains information on location, magnitude, seismic moment and focal mechanisms for over 1300 M (moment magnitude) ≥ 4.5 historic and instrumentally recorded crustal events. Using this updated earthquake database in combination with a recently published global catalogue of rifts, we assess the correlation of intraplate seismicity with ancient rifts on a global scale. Each tectonic event is put into one of five categories based on location: (i) interior rifts/taphrogens, (ii) rifted continental margins, (iii) non-rifted crust, (iv) possible interior rifts and (v) possible rifted margins. We find that approximately 27 per cent of all events are classified as interior rifts (i), 25 per cent are rifted continental margins (ii), 36 per cent are within non-rifted crust (iii) and 12 per cent (iv and v) remain uncertain. Thus, over half (52 per cent) of all events are associated with rifted crust, although within the continental interiors (i.e. away from continental margins), non-rifted crust has experienced more earthquakes than interior rifts. No major change in distribution is found if only large (M ≥ 6.0) earthquakes are considered. The largest events (M ≥ 7.0) however, have occurred predominantly within rifts (50 per cent) and continental margins (43 per cent). Intraplate seismicity is not distributed evenly. Instead several zones of concentrated seismicity seem to exist. This is especially true for interior rifts/taphrogens, where a total of only 12 regions are responsible for 74 per cent of all events and as much as 98 per cent of all seismic moment released in that category. Of the four rifts/taphrogens that have experienced the largest earthquakes, seismicity within the Kutch rift, India, and the East China rift system, may be controlled by diffuse plate boundary deformation more than by the presence of the ancient rifts themselves. The St. Lawrence depression, Canada, besides being an ancient rift, is also the site of a major collisional suture. Thus only at the Reelfoot rift (New Madrid seismic zone, NMSZ, USA), is the presence of features associated with rifting itself the sole candidate for causing seismicity. Our results suggest that on a global scale, the correlation of seismicity within SCRs and ancient rifts has been overestimated in the past. Because the majority of models used to explain intraplate seismicity have focused on seismicity within rifts, we conclude that a shift in attention more towards non-rifted as well as rifted crust is in order.
","largerWorkTitle":"","language":"English","publisher":"Oxford Academic","doi":"10.1111/j.1365-246X.2005.02554.x","issn":"0956540X","usgsCitation":"Schulte, S., and Mooney, W.D., 2005, An updated global earthquake catalogue for stable continental regions: Reassessing the correlation with ancient rifts: Geophysical Journal International, v. 161, no. 3, p. 707-721, https://doi.org/10.1111/j.1365-246X.2005.02554.x.","productDescription":"15 p.","startPage":"707","endPage":"721","numberOfPages":"15","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":477691,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-246x.2005.02554.x","text":"Publisher Index Page"},{"id":237749,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"161","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eab5e4b0c8380cd48a1c","contributors":{"authors":[{"text":"Schulte, S.M.","contributorId":22568,"corporation":false,"usgs":true,"family":"Schulte","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":423155,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mooney, Walter D. 0000-0002-5310-3631 mooney@usgs.gov","orcid":"https://orcid.org/0000-0002-5310-3631","contributorId":3194,"corporation":false,"usgs":true,"family":"Mooney","given":"Walter","email":"mooney@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":423156,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70027395,"text":"70027395 - 2005 - Mississippian carbonate buildups and development of cool-waterlike carbonate platforms in the Illinois Basin, Midcontinent U.S.A.","interactions":[],"lastModifiedDate":"2022-03-29T14:03:50.360945","indexId":"70027395","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":606,"text":"AAPG Memoir","active":true,"publicationSubtype":{"id":10}},"title":"Mississippian carbonate buildups and development of cool-waterlike carbonate platforms in the Illinois Basin, Midcontinent U.S.A.","docAbstract":"Numerous biohermal buildups occur in Mississippian (Lower Carboniferous) strata in the Illinois Basin and adjacent regions. They developed as mud mounds, biodetrital calcisiltite mounds, and bryozoan frame thickets (fenestrate-frame coquina or rudstone) during the Kinderhookian and early Meramecian (Tournaisian and early Visean), and as microbial mud mounds, microbial- serpulidbryozoanboundstones, and solenoporoid (red algal) boundstones during the Chesterian (late Visean and Serpukhovian). True Waulsortian mounds did not develop in the Illinois Basin, but echinoderm (primarily crinoids)-bryozoan carbonate banks and bryozoan frame thickets generally occupied the same niche during the Kinderhookian-early Meramecian. Nutrient availability and the resulting increase in the productivity of echinoderms and bryozoans were apparently detrimental to Waulsortian mound development. Deposition of crinoidal-bryozoan carbonates during the Kinderhookian-Osagean initially occurred on a ramp setting that later evolved into a platform with a relatively steep margin through sediment aggradation and progradation. By mid-Osagean-early Meramecian, two such platforms, namely the Burlington Shelf and the Ullin Platform, developed adjacent to a deep, initially starved basin. Sedimentologic and petrographic characteristics of the Kinderhookian-earliest Meramecian carbonates resemble the modern cool-water Heterozoan Association. This is in contrast with post-earliest Meramecian carbonates, which are typically oolitic and peloidal with common peri tidal facies. The post-earliest Meramecian carbonates, therefore, resemble those of the warm-water Photozoan Association. The prevalence of Heterozoan carbonates in the Illinois Basin correlates with a rapid increase in the rate of subsidence and a major second-order eustatic sea-level rise that resulted in deep-water starved basins at this time. In the starved Illinois Basin, deposition was initially limited to a thin phosphatic shale that was followed later by deposition of up to 200 m of siliceous, spiculitic, and radiolarianbearing limestone. The starved basin was connected to the deep open ocean through a bathymetric depression, which was centered over the failed late Precambrian-Early Cambrian Reelfoot Rift, which extended from the deep-water Ouachita Trough in central Arkansas to southern Illinois, approximately parallel to the trend of the modern Mississippi River. We believe that upwelling of cool, nutrient- and silica-rich deep oceanic water, which entered the basin through this bathymetric depression, resulted in proliferation of pelmatozoans and bryozoans. The subsequent change from cool-water-like carbonates to warm-water-like carbonates appears to be related to decreased subsidence and gradual shallowing of the basin.","language":"English","publisher":"Society for Sedimentary Geology","doi":"10.2110/pec.03.78.0069","usgsCitation":"Lasemi, Z., Norby, R.D., Utgaard, J.E., Ferry, W.R., Cuffey, R.J., and Dever, G.R., 2005, Mississippian carbonate buildups and development of cool-waterlike carbonate platforms in the Illinois Basin, Midcontinent U.S.A.: AAPG Memoir, v. 78, p. 69-95, https://doi.org/10.2110/pec.03.78.0069.","productDescription":"27 p.","startPage":"69","endPage":"95","numberOfPages":"27","costCenters":[],"links":[{"id":238156,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Illinois","otherGeospatial":"Illinois basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -87.8466796875,\n 40.97989806962013\n ],\n [\n -90.3076171875,\n 41.705728515237524\n ],\n [\n -91.4501953125,\n 40.212440718286466\n ],\n [\n -89.6044921875,\n 37.92686760148135\n ],\n [\n -88.505859375,\n 37.50972584293751\n ],\n [\n -87.4951171875,\n 39.13006024213511\n ],\n [\n -87.8466796875,\n 40.97989806962013\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"78","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5b63e4b0c8380cd6f529","contributors":{"authors":[{"text":"Lasemi, Z.","contributorId":17795,"corporation":false,"usgs":true,"family":"Lasemi","given":"Z.","email":"","affiliations":[],"preferred":false,"id":413475,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Norby, R. D.","contributorId":71327,"corporation":false,"usgs":true,"family":"Norby","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":413478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Utgaard, J. E.","contributorId":106698,"corporation":false,"usgs":true,"family":"Utgaard","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":413480,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferry, W. R.","contributorId":37146,"corporation":false,"usgs":true,"family":"Ferry","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":413476,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cuffey, R. J.","contributorId":73813,"corporation":false,"usgs":true,"family":"Cuffey","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":413479,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dever, G. R. Jr.","contributorId":59087,"corporation":false,"usgs":true,"family":"Dever","given":"G.","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":413477,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70027912,"text":"70027912 - 2005 - Effects of urbanization on the geomorphology, habitat, hydrology, and fish index of biotic integrity of streams in the Chicago area, Illinois and Wisconsin","interactions":[],"lastModifiedDate":"2012-03-12T17:20:46","indexId":"70027912","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":718,"text":"American Fisheries Society Symposium","active":true,"publicationSubtype":{"id":10}},"title":"Effects of urbanization on the geomorphology, habitat, hydrology, and fish index of biotic integrity of streams in the Chicago area, Illinois and Wisconsin","docAbstract":"Effects of urbanization on geomorphic, habitat, and hydrologic characteristics and fish biotic integrity of 45 streams in the Chicago area were examined by the U.S. Geological Survey from 2000 to 2001. An agricultural to urban land-cover gradient approach was used. Landscape characteristics such as texture of surficial deposits, slope, riparian land cover, and stream network position also were examined to determine if these factors influenced the effects of urbanization. Among geomorphic characteristics, channel enlargement occurred in urban streams with a high percent of watershed clayey surficial deposits. Other geomorphic and habitat characteristics such as stream power, fine substrate, and amount of riffles did not correlate with percent watershed urban land but instead correlated with reach slope. Bank erosion, habitat variability, and two habitat indexes did not correlate with watershed urban land. Below 30% watershed urban land, the unit area discharge for a 2-year flood increased with increasing urban land; however, above 30% urban land, unit area discharges for a 2-year flood were variable, most likely due to variations in stormwater management practices, point-source contributions, and the transport index. Streams with greater than 33% watershed urban land had low base flow, but the effects of urbanization on base flow were offset by point-source contributions. Fish index of biotic integrity (IBI) scores were low in streams with greater than 25% watershed urban land. Fish IBI scores also were low in streams with high percentages of watershed clayey surficial deposits and enlarged channels. The amount of riparian forest/wetland buffer had no moderating effect on geomorphic/habitat/hydrologic characteristics and fish IBI scores. Variations in the texture and topography of glacial landforms affected reach slope and some habitat characteristics. Longitudinal profiles were useful for distinguishing differences in local geologic settings among sampled sites.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Fisheries Society Symposium","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"08922284","usgsCitation":"Fitzpatrick, F., Diebel, M., Harris, M., Arnold, T., Lutz, M., and Richards, K., 2005, Effects of urbanization on the geomorphology, habitat, hydrology, and fish index of biotic integrity of streams in the Chicago area, Illinois and Wisconsin: American Fisheries Society Symposium, v. 2005, no. 47, p. 87-115.","startPage":"87","endPage":"115","numberOfPages":"29","costCenters":[],"links":[{"id":238289,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2005","issue":"47","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a082be4b0c8380cd519e2","contributors":{"authors":[{"text":"Fitzpatrick, F. A. 0000-0002-9748-7075","orcid":"https://orcid.org/0000-0002-9748-7075","contributorId":61446,"corporation":false,"usgs":true,"family":"Fitzpatrick","given":"F. A.","affiliations":[],"preferred":false,"id":415766,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Diebel, M.W.","contributorId":103465,"corporation":false,"usgs":true,"family":"Diebel","given":"M.W.","affiliations":[],"preferred":false,"id":415769,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harris, M.A.","contributorId":101278,"corporation":false,"usgs":true,"family":"Harris","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":415768,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Arnold, T.L.","contributorId":11810,"corporation":false,"usgs":true,"family":"Arnold","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":415764,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lutz, M.A.","contributorId":88945,"corporation":false,"usgs":true,"family":"Lutz","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":415767,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Richards, K.D.","contributorId":28635,"corporation":false,"usgs":true,"family":"Richards","given":"K.D.","email":"","affiliations":[],"preferred":false,"id":415765,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70027339,"text":"70027339 - 2005 - Regional landslide-hazard assessment for Seattle, Washington, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:27","indexId":"70027339","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2604,"text":"Landslides","active":true,"publicationSubtype":{"id":10}},"title":"Regional landslide-hazard assessment for Seattle, Washington, USA","docAbstract":"Landslides are a widespread, frequent, and costly hazard in Seattle and the Puget Sound area of Washington State, USA. Shallow earth slides triggered by heavy rainfall are the most common type of landslide in the area; many transform into debris flows and cause significant property damage or disrupt transportation. Large rotational and translational slides, though less common, also cause serious property damage. The hundreds of landslides that occurred during the winters of 1995-96 and 1996-97 stimulated renewed interest by Puget Sound communities in identifying landslide-prone areas and taking actions to reduce future landslide losses. Informal partnerships between the U.S. Geological Survey (USGS), the City of Seattle, and private consultants are focusing on the problem of identifying and mapping areas of landslide hazard as well as characterizing temporal aspects of the hazard. We have developed GIS-based methods to map the probability of landslide occurrence as well as empirical rainfall thresholds and physically based methods to forecast times of landslide occurrence. Our methods for mapping landslide hazard zones began with field studies and physically based models to assess relative slope stability, including the effects of material properties, seasonal groundwater levels, and rainfall infiltration. We have analyzed the correlation between historic landslide occurrence and relative slope stability to map the degree of landslide hazard. The City of Seattle is using results of the USGS studies in storm preparedness planning for emergency access and response, planning for development or redevelopment of hillsides, and municipal facility planning and prioritization. Methods we have developed could be applied elsewhere to suit local needs and available data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Landslides","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10346-005-0023-y","issn":"1612510X","usgsCitation":"Baum, R., Coe, J.A., Godt, J., Harp, E.L., Reid, M., Savage, W.Z., Schulz, W., Brien, D., Chleborad, A., McKenna, J., and Michael, J.A., 2005, Regional landslide-hazard assessment for Seattle, Washington, USA: Landslides, v. 2, no. 4, p. 266-279, https://doi.org/10.1007/s10346-005-0023-y.","startPage":"266","endPage":"279","numberOfPages":"14","costCenters":[],"links":[{"id":235569,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209279,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10346-005-0023-y"}],"volume":"2","issue":"4","noUsgsAuthors":false,"publicationDate":"2005-11-19","publicationStatus":"PW","scienceBaseUri":"50e4a536e4b0e8fec6cdbd87","contributors":{"authors":[{"text":"Baum, R.L.","contributorId":68752,"corporation":false,"usgs":true,"family":"Baum","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":413243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coe, J. A.","contributorId":8867,"corporation":false,"usgs":true,"family":"Coe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":413236,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Godt, J. W.","contributorId":76732,"corporation":false,"usgs":true,"family":"Godt","given":"J. W.","affiliations":[],"preferred":false,"id":413244,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harp, E. L.","contributorId":59026,"corporation":false,"usgs":true,"family":"Harp","given":"E.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":413241,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Reid, M.E.","contributorId":108130,"corporation":false,"usgs":true,"family":"Reid","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":413246,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Savage, W. Z.","contributorId":106481,"corporation":false,"usgs":true,"family":"Savage","given":"W.","email":"","middleInitial":"Z.","affiliations":[],"preferred":false,"id":413245,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schulz, W.H.","contributorId":61225,"corporation":false,"usgs":true,"family":"Schulz","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":413242,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brien, D.L.","contributorId":43027,"corporation":false,"usgs":true,"family":"Brien","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":413239,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Chleborad, A.F.","contributorId":17990,"corporation":false,"usgs":true,"family":"Chleborad","given":"A.F.","affiliations":[],"preferred":false,"id":413237,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"McKenna, J.P.","contributorId":24543,"corporation":false,"usgs":true,"family":"McKenna","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":413238,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Michael, J. A.","contributorId":48567,"corporation":false,"usgs":true,"family":"Michael","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":413240,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70029428,"text":"70029428 - 2005 - Biomass, production and woody detritus in an old coast redwood (Sequoia sempervirens) forest","interactions":[],"lastModifiedDate":"2012-03-12T17:20:46","indexId":"70029428","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3086,"text":"Plant Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Biomass, production and woody detritus in an old coast redwood (Sequoia sempervirens) forest","docAbstract":"We examined aboveground biomass dynamics, aboveground net primary production (ANPP), and woody detritus input in an old Sequoia sempervirens stand over a three-decade period. Our estimates of aboveground biomass ranged from 3300 to 5800 Mg ha-1. Stem biomass estimates ranged from 3000 to 5200 Mg ha-1. Stem biomass declined 7% over the study interval. Biomass dynamics were patchy, with marked declines in recent tree-fall patches <0.05 ha in size. Larger tree-fall patches approaching 0.2 ha in size were observed outside the study plot. Our estimates of ANPP ranged from 6 to 14 Mg ha -1yr-1. Estimates of 7 to 10 Mg ha-1yr -1 were considered to be relatively accurate. Thus, our estimates based on long-term data corroborated the findings of earlier short-term studies. ANPP of old, pure stands of Sequoia was not above average for temperate forests. Even though production was potentially high on a per stem basis, it was moderate at the stand level. We obtained values of 797 m3 ha -1 and 262 Mg ha-1 for coarse woody detritus volume and mass, respectively. Fine woody detritus volume and mass were estimated at 16 m3 ha-1 and 5 Mg ha-1, respectively. Standing dead trees (or snags) comprised 7% of the total coarse detritus volume and 8% of the total mass. Coarse detritus input averaged 5.7 to 6.9 Mg ha -1yr-1. Assuming steady-state input and pool of coarse detritus, we obtained a decay rate constant of 0.022 to 0.026. The old-growth stand of Sequoia studied had extremely high biomass, but ANPP was moderate and the amount of woody detritus was not exceptionally large. Biomass accretion and loss were not rapid in this stand partly because of the slow population dynamics and low canopy turnover rate of Sequoia at the old-growth stage. Nomenclature: Hickman (1993). ?? Springer 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Plant Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11258-005-2322-8","issn":"13850237","usgsCitation":"Busing, R.T., and Fujimori, T., 2005, Biomass, production and woody detritus in an old coast redwood (Sequoia sempervirens) forest: Plant Ecology, v. 177, no. 2, p. 177-188, https://doi.org/10.1007/s11258-005-2322-8.","startPage":"177","endPage":"188","numberOfPages":"12","costCenters":[],"links":[{"id":210755,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11258-005-2322-8"},{"id":237774,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"177","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f18ce4b0c8380cd4acca","contributors":{"authors":[{"text":"Busing, R. T.","contributorId":72162,"corporation":false,"usgs":true,"family":"Busing","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":422705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fujimori, T.","contributorId":86926,"corporation":false,"usgs":true,"family":"Fujimori","given":"T.","email":"","affiliations":[],"preferred":false,"id":422706,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70029666,"text":"70029666 - 2005 - Effects of urban development in the Puget Lowland, Washington, on interannual streamflow patterns: Consequences for channel form and streambed disturbance","interactions":[],"lastModifiedDate":"2018-04-02T16:12:36","indexId":"70029666","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Effects of urban development in the Puget Lowland, Washington, on interannual streamflow patterns: Consequences for channel form and streambed disturbance","docAbstract":"Recovery and protection of streams in urban areas depend on a comprehensive understanding of how human activities affect stream ecosystems. The hydrologic effects of urban development and the consequences for stream channel form and streambed stability were examined in 16 streams in the Puget Lowland, Washington, using three streamflow metrics that integrate storm‐scale effects of urban development over annual to decadal timescales: the fraction of time that streamflow exceeds the mean streamflow (TQmean), the coefficient of variation of annual maximum streamflow (CVAMF), and the fraction of time that streamflow exceeds the 0.5‐year flood (T0.5). Urban streams had low interannual variability in annual maximum streamflow and brief duration of frequent high flows, as indicated by significant correlations between road density and both CVAMFand T0.5. The broader distribution of streamflow indicated by TQmean may be affected by urban development, but differences in TQmean between streams are also likely a result of other physiographic factors. The increase in the magnitude of frequent high flows due to urban development but not their cumulative duration has important consequences for channel form and bed stability in gravel bed streams because geomorphic equilibrium depends on moderate duration streamflow (e.g., exceeded 10% of the time). Streams with low values of TQmean and T0.5 are narrower than expected from hydraulic geometry. Dimensionless boundary shear stress (t*) for the 0.5‐year flood was inversely related to T0.5 among the streams, indicating frequent and extensive bed disturbance in streams with low values of T0.5. Although stream channels expand and the size of bed material increases in response to urban streamflow patterns, these adjustments may be insufficient to reestablish the disturbance regime in urban streams because of the differential increase in the magnitude of frequent high flows causing disturbance relative to any changes in longer duration, moderate flows that establish a stable channel.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2005WR004097","usgsCitation":"Konrad, C.P., Booth, D.B., and Burges, S.J., 2005, Effects of urban development in the Puget Lowland, Washington, on interannual streamflow patterns: Consequences for channel form and streambed disturbance: Water Resources Research, v. 41, no. 7, Article W07009; 15 p., https://doi.org/10.1029/2005WR004097.","productDescription":"Article W07009; 15 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":240339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"7","noUsgsAuthors":false,"publicationDate":"2005-07-13","publicationStatus":"PW","scienceBaseUri":"505a0820e4b0c8380cd519b5","contributors":{"authors":[{"text":"Konrad, Christopher P. 0000-0002-7354-547X cpkonrad@usgs.gov","orcid":"https://orcid.org/0000-0002-7354-547X","contributorId":1716,"corporation":false,"usgs":true,"family":"Konrad","given":"Christopher","email":"cpkonrad@usgs.gov","middleInitial":"P.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":423732,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Booth, Derek B.","contributorId":100873,"corporation":false,"usgs":false,"family":"Booth","given":"Derek","email":"","middleInitial":"B.","affiliations":[{"id":6934,"text":"University of Washington","active":true,"usgs":false}],"preferred":false,"id":423733,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burges, Stephen J.","contributorId":8567,"corporation":false,"usgs":false,"family":"Burges","given":"Stephen","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":423734,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029661,"text":"70029661 - 2005 - Karst database development in Minnesota: Design and data assembly","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70029661","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","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":"Karst database development in Minnesota: Design and data assembly","docAbstract":"The Karst Feature Database (KFD) of Minnesota is a relational GIS-based Database Management System (DBMS). Previous karst feature datasets used inconsistent attributes to describe karst features in different areas of Minnesota. Existing metadata were modified and standardized to represent a comprehensive metadata for all the karst features in Minnesota. Microsoft Access 2000 and ArcView 3.2 were used to develop this working database. Existing county and sub-county karst feature datasets have been assembled into the KFD, which is capable of visualizing and analyzing the entire data set. By November 17 2002, 11,682 karst features were stored in the KFD of Minnesota. Data tables are stored in a Microsoft Access 2000 DBMS and linked to corresponding ArcView applications. The current KFD of Minnesota has been moved from a Windows NT server to a Windows 2000 Citrix server accessible to researchers and planners through networked interfaces. ?? Springer-Verlag 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00254-005-1240-3","issn":"09430105","usgsCitation":"Gao, Y., Alexander, E., and Tipping, R., 2005, Karst database development in Minnesota: Design and data assembly: Environmental Geology, v. 47, no. 8, p. 1072-1082, https://doi.org/10.1007/s00254-005-1240-3.","startPage":"1072","endPage":"1082","numberOfPages":"11","costCenters":[],"links":[{"id":240268,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212734,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00254-005-1240-3"}],"volume":"47","issue":"8","noUsgsAuthors":false,"publicationDate":"2005-04-09","publicationStatus":"PW","scienceBaseUri":"505a405fe4b0c8380cd64cec","contributors":{"authors":[{"text":"Gao, Y.","contributorId":82437,"corporation":false,"usgs":true,"family":"Gao","given":"Y.","email":"","affiliations":[],"preferred":false,"id":423687,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alexander, E.C. Jr.","contributorId":94062,"corporation":false,"usgs":true,"family":"Alexander","given":"E.C.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":423688,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tipping, R.G.","contributorId":67272,"corporation":false,"usgs":true,"family":"Tipping","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":423686,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70029380,"text":"70029380 - 2005 - Broad-scale predictors of canada lynx occurrence in eastern North America","interactions":[],"lastModifiedDate":"2012-03-12T17:20:51","indexId":"70029380","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","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":"Broad-scale predictors of canada lynx occurrence in eastern North America","docAbstract":"The Canada lynx (Lynx canadensis) is listed as a threatened species throughout the southern extent of its geographic range in the United States. Most research on lynx has been conducted in the western United States and Canada; little is known about the ecology of lynx in eastern North America. To fill critical knowledge gaps about this species, we modeled and mapped lynx occurrence using habitat and weather data from 7 eastern states and 3 Canadian provinces. Annual snowfall, road density, bobcat (L. rufus) harvest, deciduous forest, and coniferous forest were compared at 1,150 lynx locations and 1,288 random locations. Nineteen a priori models were developed using the information-theoretic approach, and logistic regression models were ranked using Akaike's Information Criterion (AIC) and by our ability to correctly classify reserved data (Kappa). Annual snowfall and deciduous forest predicted lynx presence and absence for a reserved dataset (n = 278) with 94% accuracy. A map of the probability of lynx occurrence throughout the region revealed that 92% of the potential habitat (i.e., >50% probability of occurrence) was concentrated in a relatively contiguous complex encompassing northern Maine, New Brunswick, and the Gaspe?? peninsula of Quebec. Most of the remaining potential habitat (5%) was on northern Cape Breton Island in Nova Scotia. Potential habitat in New Hampshire, Vermont, and New York was small (1,252 km2), fragmented, and isolated (>200 km) from known lynx populations. When federally listed as threatened in the contiguous United States in 2000, inadequate regulations on federal lands were cited as the primary threat to Canada lynx. However, the majority of potential lynx habitat in the eastern United States is on private lands and continuous with potential habitat in Canada. Therefore, lynx conservation in eastern North America will need to develop partnerships across national, state, and provincial boundaries as well as with private landowners.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2193/0022-541X(2005)069[0739:BPOCLO]2.0.CO;2","issn":"0022541X","usgsCitation":"Hoving, C., Harrison, D., Krohn, W., Joseph, R., and O'Brien, M., 2005, Broad-scale predictors of canada lynx occurrence in eastern North America: Journal of Wildlife Management, v. 69, no. 2, p. 739-751, https://doi.org/10.2193/0022-541X(2005)069[0739:BPOCLO]2.0.CO;2.","startPage":"739","endPage":"751","numberOfPages":"13","costCenters":[],"links":[{"id":210590,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/0022-541X(2005)069[0739:BPOCLO]2.0.CO;2"},{"id":237560,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f286e4b0c8380cd4b20f","contributors":{"authors":[{"text":"Hoving, C.L.","contributorId":32333,"corporation":false,"usgs":true,"family":"Hoving","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":422488,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harrison, D.J.","contributorId":82022,"corporation":false,"usgs":true,"family":"Harrison","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":422492,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krohn, W.B.","contributorId":64355,"corporation":false,"usgs":true,"family":"Krohn","given":"W.B.","email":"","affiliations":[],"preferred":false,"id":422490,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Joseph, R.A.","contributorId":69331,"corporation":false,"usgs":true,"family":"Joseph","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":422491,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"O'Brien, M.","contributorId":57980,"corporation":false,"usgs":true,"family":"O'Brien","given":"M.","affiliations":[],"preferred":false,"id":422489,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70029379,"text":"70029379 - 2005 - Distribution patterns of mercury in Lakes and Rivers of northeastern North America","interactions":[],"lastModifiedDate":"2016-08-24T17:30:01","indexId":"70029379","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1479,"text":"Ecotoxicology","active":true,"publicationSubtype":{"id":10}},"title":"Distribution patterns of mercury in Lakes and Rivers of northeastern North America","docAbstract":"We assembled 831 data points for total mercury (Hgt) and 277 overlapping points for methyl mercury (CH3Hg+) in surface waters from Massachussetts, USA to the Island of Newfoundland, Canada from State, Provincial, and Federal government databases. These geographically indexed values were used to determine: (a) if large-scale spatial distribution patterns existed and (b) whether there were significant relationships between the two main forms of aquatic Hg as well as with total organic carbon (TOC), a well know complexer of metals. We analyzed the catchments where samples were collected using a Geographical Information System (GIS) approach, calculating catchment sizes, mean slope, and mean wetness index. Our results show two main spatial distribution patterns. We detected loci of high Hgt values near urbanized regions of Boston MA and Portland ME. However, except for one unexplained exception, the highest Hgt and CH3Hg+ concentrations were located in regions far from obvious point sources. These correlated to topographically flat (and thus wet) areas that we relate to wetland abundances. We show that aquatic Hgt and CH3Hg+ concentrations are generally well correlated with TOC and with each other. Over the region, CH3Hg+ concentrations are typically approximately 15% of Hgt. There is an exception in the Boston region where CH3Hg+ is low compared to the high Hgt values. This is probably due to the proximity of point sources of inorganic Hg and a lack of wetlands. We also attempted to predict Hg concentrations in water with statistical models using catchment features as variables. We were only able to produce statistically significant predictive models in some parts of regions due to the lack of suitable digital information, and because data ranges in some regions were too narrow for meaningful regression analyses.
","language":"English","publisher":"Chapman & Hall","doi":"10.1007/s10646-004-6263-0","issn":"09639292","usgsCitation":"Dennis, I.F., Clair, T.A., Driscoll, C.T., Kamman, N., Chalmers, A.T., Shanley, J., Norton, S.A., and Kahl, S., 2005, Distribution patterns of mercury in Lakes and Rivers of northeastern North America: Ecotoxicology, v. 14, no. 1-2, p. 113-123, https://doi.org/10.1007/s10646-004-6263-0.","productDescription":"11 p.","startPage":"113","endPage":"123","costCenters":[],"links":[{"id":237559,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Maine, Massachusetts, New Brunswick, New Hampshire, New York, Newfoundland, Nova Scotia, Quebec, Vermont","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -57.919921875,\n 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A.","contributorId":83254,"corporation":false,"usgs":true,"family":"Clair","given":"Thomas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":422485,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Driscoll, Charles T.","contributorId":167460,"corporation":false,"usgs":false,"family":"Driscoll","given":"Charles","email":"","middleInitial":"T.","affiliations":[{"id":5082,"text":"Syracuse University","active":true,"usgs":false}],"preferred":false,"id":422483,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kamman, Neil","contributorId":56892,"corporation":false,"usgs":true,"family":"Kamman","given":"Neil","email":"","affiliations":[],"preferred":false,"id":422487,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chalmers, Ann T. 0000-0002-5199-8080 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transit from the top of the snowpack to a stream gauge in the river channel. This travel time, which is measured as the difference between the hour of peak snowmelt in the afternoon and the hour of maximum discharge each day, ranges from a few hours to almost a full day later. Travel times increase with longer percolation times through deeper snowpacks, and prior studies of small basins have related the timing of a stream's diurnal peak to the amount of snow stored in a basin. However, in many larger basins the time of peak flow is nearly constant during the first half of the melt season, with little or no variation between years. This apparent self‐organization at larger scales can be reproduced by employing heterogeneous observations of snow depths and melt rates in a model that couples porous medium flow through an evolving snowpack with free surface flow in a channel.
","language":"English","publisher":"AGU","doi":"10.1029/2004WR003649","issn":"00431397","usgsCitation":"Lundquist, J., and Dettinger, M.D., 2005, How snowpack heterogeneity affects diurnal streamflow timing: Water Resources Research, v. 41, no. 5, p. 1-14, https://doi.org/10.1029/2004WR003649.","productDescription":"14 p.","startPage":"1","endPage":"14","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":477715,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2004wr003649","text":"Publisher Index Page"},{"id":240603,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213023,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2004WR003649"}],"volume":"41","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-05-06","publicationStatus":"PW","scienceBaseUri":"505a3258e4b0c8380cd5e731","contributors":{"authors":[{"text":"Lundquist, J.D.","contributorId":93243,"corporation":false,"usgs":true,"family":"Lundquist","given":"J.D.","affiliations":[],"preferred":false,"id":423618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dettinger, M. D. 0000-0002-7509-7332","orcid":"https://orcid.org/0000-0002-7509-7332","contributorId":93069,"corporation":false,"usgs":false,"family":"Dettinger","given":"M.","middleInitial":"D.","affiliations":[{"id":16196,"text":"Scripps Institution of Oceanography, La Jolla, CA","active":true,"usgs":false}],"preferred":false,"id":423617,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70029429,"text":"70029429 - 2005 - Pliocene transpressional modification of depositional basins by convergent thrusting adjacent to the \"Big Bend\" of the San Andreas fault: An example from Lockwood Valley, southern California","interactions":[],"lastModifiedDate":"2012-03-12T17:20:46","indexId":"70029429","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3524,"text":"Tectonics","active":true,"publicationSubtype":{"id":10}},"title":"Pliocene transpressional modification of depositional basins by convergent thrusting adjacent to the \"Big Bend\" of the San Andreas fault: An example from Lockwood Valley, southern California","docAbstract":"The \"Big Bend\" of the San Andreas fault in the western Transverse Ranges of southern California is a left stepping flexure in the dextral fault system and has long been recognized as a zone of relatively high transpression compared to adjacent regions. The Lockwood Valley region, just south of the Big Bend, underwent a profound change in early Pliocene time (???5 Ma) from basin deposition to contraction, accompanied by widespread folding and thrusting. This change followed the recently determined initiation of opening of the northern Gulf of California and movement along the southern San Andreas fault at about 6.1 Ma, with the concomitant formation of the Big Bend. Lockwood Valley occupies a 6-km-wide, fault-bounded structural basin in which converging blocks of Paleoproterozoic and Cretaceous crystalline basement and upper Oligocene and lower Miocene sedimentary rocks (Plush Ranch Formation) were thrust over Miocene and Pliocene basin-fill sedimentary rocks (in ascending order, Caliente Formation, Lockwood Clay, and Quatal Formation). All the pre-Quatal sedimentary rocks and most of the Pliocene Quatal Formation were deposited during a mid-Tertiary period of regional transtension in a crustal block that underwent little clockwise vertical-axis rotation as compared to crustal blocks to the south. Ensuing Pliocene and Quaternary transpression in the Big Bend region began during deposition of the poorly dated Quatal Formation and was marked by four converging thrust systems, which decreased the areal extent of the sedimentary basin and formed the present Lockwood Valley structural basin. None of the thrusts appears presently active. Estimated shortening across the center of the basin was about 30 percent. The fortnerly defined eastern Big Pine fault, now interpreted to be two separate, oppositely directed, contractional reverse or thrust faults, marks the northwestern structural boundary of Lockwood Valley. The complex geometry of the Lockwood Valley basin is similar to other Tertiary structural basins in southern California, such those that underlie Cuyama Valley, the Ridge basin, and the east Ventura basin.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Tectonics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2003TC001610","issn":"02787407","usgsCitation":"Kellogg, K., and Minor, S., 2005, Pliocene transpressional modification of depositional basins by convergent thrusting adjacent to the \"Big Bend\" of the San Andreas fault: An example from Lockwood Valley, southern California: Tectonics, v. 24, no. 1, p. 1-12, https://doi.org/10.1029/2003TC001610.","startPage":"1","endPage":"12","numberOfPages":"12","costCenters":[],"links":[{"id":487541,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2003tc001610","text":"Publisher Index Page"},{"id":210756,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2003TC001610"},{"id":237775,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"1","noUsgsAuthors":false,"publicationDate":"2005-01-26","publicationStatus":"PW","scienceBaseUri":"505a7c81e4b0c8380cd79a0d","contributors":{"authors":[{"text":"Kellogg, K.S.","contributorId":99145,"corporation":false,"usgs":true,"family":"Kellogg","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":422708,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":422707,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70027812,"text":"70027812 - 2005 - Seismically induced rock slope failures resulting from topographic amplification of strong ground motions: The case of Pacoima Canyon, California","interactions":[],"lastModifiedDate":"2012-03-12T17:20:49","indexId":"70027812","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1517,"text":"Engineering Geology","active":true,"publicationSubtype":{"id":10}},"title":"Seismically induced rock slope failures resulting from topographic amplification of strong ground motions: The case of Pacoima Canyon, California","docAbstract":"The 1994 Northridge earthquake (Mw = 6.7) triggered extensive rock slope failures in Pacoima Canyon, immediately north of Los Angeles, California. Pacoima Canyon is a narrow and steep canyon incised in gneissic and granitic rocks. Peak accelerations of nearly 1.6 g were recorded at a ridge that forms the left abutment of Pacoima Dam; peak accelerations at the bottom of the canyon were less than 0.5 g, suggesting the occurrence of topographic amplification. Topographic effects have been previously suggested to explain similarly high ground motions at the site during the 1971 (Mw = 6.7) San Fernando earthquake. Furthermore, high landslide concentrations observed in the area have been attributed to unusually strong ground motions rather than higher susceptibility to sliding compared with nearby zones. We conducted field investigations and slope stability back-analyses to confirm the impact of topographic amplification on the triggering of landslides during the 1994 earthquake. Our results suggest that the observed extensive rock sliding and falling would have not been possible under unamplified seismic conditions, which would have generated a significantly lower number of areas affected by landslides. In contrast, modelling slope stability using amplified ground shaking predicts slope failure distributions matching what occurred in 1994. This observation confirms a significant role for topographic amplification on the triggering of landslides at the site, and emphasises the need to select carefully the inputs for seismic slope stability analyses. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Engineering Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.enggeo.2005.07.004","issn":"00137952","usgsCitation":"Sepulveda, S., Murphy, W., Jibson, R., and Petley, D., 2005, Seismically induced rock slope failures resulting from topographic amplification of strong ground motions: The case of Pacoima Canyon, California: Engineering Geology, v. 80, no. 3-4, p. 336-348, https://doi.org/10.1016/j.enggeo.2005.07.004.","startPage":"336","endPage":"348","numberOfPages":"13","costCenters":[],"links":[{"id":238317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211122,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.enggeo.2005.07.004"}],"volume":"80","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8b89e4b08c986b3178e5","contributors":{"authors":[{"text":"Sepulveda, S.A.","contributorId":94092,"corporation":false,"usgs":true,"family":"Sepulveda","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":415321,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murphy, W.","contributorId":96027,"corporation":false,"usgs":true,"family":"Murphy","given":"W.","affiliations":[],"preferred":false,"id":415322,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jibson, R.W.","contributorId":8467,"corporation":false,"usgs":true,"family":"Jibson","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":415319,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Petley, D.N.","contributorId":71759,"corporation":false,"usgs":true,"family":"Petley","given":"D.N.","email":"","affiliations":[],"preferred":false,"id":415320,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70029438,"text":"70029438 - 2005 - Surface water acidification responses and critical loads of sulfur and nitrogen deposition in Loch Vale watershed, Colorado","interactions":[],"lastModifiedDate":"2018-04-02T15:51:41","indexId":"70029438","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Surface water acidification responses and critical loads of sulfur and nitrogen deposition in Loch Vale watershed, Colorado","docAbstract":"We evaluated the sensitivity of The Loch, a subalpine lake in Rocky Mountain National Park in Colorado, to acidification in response to increased atmospheric loading of sulfur (S) and nitrogen (N) using the Model of Acidification of Groundwater in Catchments (MAGIC). Lake water acid‐base chemistry was moderately sensitive to changes in both S and N deposition. However, the loads of S deposition that would drive chronic lake water acid neutralizing capacity (ANC) to below 0 or 20 μeq L−1 were estimated to be 11 and 8 kg S ha−1 yr−1, respectively, assuming constant future N deposition at current levels. Comparable loads for N deposition, assuming constant future S deposition, were estimated to be 21 and 12 kg N ha−1 yr−1, respectively. Modeling results for Andrews Creek, an alpine tributary to The Loch, suggested critical loads for surface water acidification that averaged about one third lower. Surface water ANC = 50 μeq L−1 was projected to occur in 50 years in The Loch if S or N deposition increased by a moderate amount (<40%) but could not be achieved in Andrews Creek by reducing either S or N deposition to zero. On the basis of the results of synoptic surveys of lake water chemistry, about one fifth of the wilderness lakes in the Colorado Front Range are more acid‐sensitive than The Loch. This modeling exercise suggests the need for a regional analysis of critical loads for the larger population of acid‐sensitive aquatic resources in order to provide part of the scientific foundation for federally mandated land management decisions.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2004WR003414","usgsCitation":"Sullivan, T., Cosby, B., Tonnessen, K., and Clow, D.W., 2005, Surface water acidification responses and critical loads of sulfur and nitrogen deposition in Loch Vale watershed, Colorado: Water Resources Research, v. 41, no. 1, Article W01021; 15 p., https://doi.org/10.1029/2004WR003414.","productDescription":"Article W01021; 15 p.","costCenters":[],"links":[{"id":477813,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2004wr003414","text":"Publisher Index Page"},{"id":237378,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"1","noUsgsAuthors":false,"publicationDate":"2005-01-29","publicationStatus":"PW","scienceBaseUri":"505b9fc4e4b08c986b31e7fb","contributors":{"authors":[{"text":"Sullivan, T.J.","contributorId":83734,"corporation":false,"usgs":true,"family":"Sullivan","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":422740,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cosby, B.J.","contributorId":96455,"corporation":false,"usgs":true,"family":"Cosby","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":422741,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tonnessen, K.A.","contributorId":30196,"corporation":false,"usgs":true,"family":"Tonnessen","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":422739,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clow, D. W.","contributorId":23531,"corporation":false,"usgs":true,"family":"Clow","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":422738,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70027810,"text":"70027810 - 2005 - Inhibition of calcite precipitation by natural organic material: Kinetics, mechanism, and thermodynamics","interactions":[],"lastModifiedDate":"2012-03-12T17:20:50","indexId":"70027810","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Inhibition of calcite precipitation by natural organic material: Kinetics, mechanism, and thermodynamics","docAbstract":"The inhibition of calcite precipitation by natural organic material (NOM) in solutions seeded with calcite was investigated using a pH-stat system. Experiments were carried out using three NOMs with different physical/chemical properties. For each of the materials, inhibition was found to be more effective at lower carbonate/calcium ratios and lower pH values. The reduction in the precipitation rate could be explained by a Langmuir adsorption model using a conditional equilibrium constant. By identification of the type of site on the NOM molecules that is involved in the adsorption reaction, the \"conditional\" equilibrium constants obtained at different solution compositions converged to a single \"nonconditional\" value. The thermodynamic data determined at 25??C and 1 atm suggest that the interaction between NOM molecules and the calcite surface is chemisorptive in nature and that adsorption is an endothermic reaction driven by the entropy change. The greatest degree of inhibition was observed for the NOM with the highest molecular weight and aromatic carbon content. For a given type of NOM, the degree of inhibition of calcite precipitation was dictated by the balance between the enthalpy change and the entropy change of the adsorption reaction. ?? 2005 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es050470z","issn":"0013936X","usgsCitation":"Lin, Y., Singer, P., and Aiken, G., 2005, Inhibition of calcite precipitation by natural organic material: Kinetics, mechanism, and thermodynamics: Environmental Science & Technology, v. 39, no. 17, p. 6420-6428, https://doi.org/10.1021/es050470z.","startPage":"6420","endPage":"6428","numberOfPages":"9","costCenters":[],"links":[{"id":211101,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es050470z"},{"id":238284,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"17","noUsgsAuthors":false,"publicationDate":"2005-07-27","publicationStatus":"PW","scienceBaseUri":"505a3bd6e4b0c8380cd62872","contributors":{"authors":[{"text":"Lin, Y.-P.","contributorId":62822,"corporation":false,"usgs":true,"family":"Lin","given":"Y.-P.","email":"","affiliations":[],"preferred":false,"id":415311,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Singer, P.C.","contributorId":80424,"corporation":false,"usgs":true,"family":"Singer","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":415312,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Aiken, G. R. 0000-0001-8454-0984","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":14452,"corporation":false,"usgs":true,"family":"Aiken","given":"G. R.","affiliations":[],"preferred":false,"id":415310,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70027569,"text":"70027569 - 2005 - Incorporating uncertainty in watershed management decision-making: A mercury TMDL case study","interactions":[],"lastModifiedDate":"2012-03-12T17:20:48","indexId":"70027569","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Incorporating uncertainty in watershed management decision-making: A mercury TMDL case study","docAbstract":"Water quality impairment due to high mercury fish tissue concentrations and high mercury aqueous concentrations is a widespread problem in several sub-watersheds that are major sources of mercury to the San Francisco Bay. Several mercury Total Maximum Daily Load regulations are currently being developed to address this problem. Decisions about control strategies are being made despite very large uncertainties about current mercury loading behavior, relationships between total mercury loading and methyl mercury formation, and relationships between potential controls and mercury fish tissue levels. To deal with the issues of very large uncertainties, data limitations, knowledge gaps, and very limited State agency resources, this work proposes a decision analytical alternative for mercury TMDL decision support. The proposed probabilistic decision model is Bayesian in nature and is fully compatible with a \"learning while doing\" adaptive management approach. Strategy evaluation, sensitivity analysis, and information collection prioritization are examples of analyses that can be performed using this approach.","largerWorkTitle":"Proceedings of the 2005 Watershed Management Conference - Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges","conferenceTitle":"2005 Watershed Management Conference - Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges","conferenceDate":"19 July 2005 through 22 July 2005","conferenceLocation":"Williamsburg, VA","language":"English","isbn":"0784407630","usgsCitation":"Labiosa, W., Leckie, J., Shachter, R., Freyberg, D., and Rytuba, J., 2005, Incorporating uncertainty in watershed management decision-making: A mercury TMDL case study, in Proceedings of the 2005 Watershed Management Conference - Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges, Williamsburg, VA, 19 July 2005 through 22 July 2005, p. 1469-1479.","startPage":"1469","endPage":"1479","numberOfPages":"11","costCenters":[],"links":[{"id":237947,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a39ebe4b0c8380cd61aa6","contributors":{"editors":[{"text":"Moglen G.E.","contributorId":128404,"corporation":true,"usgs":false,"organization":"Moglen G.E.","id":536619,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Labiosa, W.","contributorId":29200,"corporation":false,"usgs":true,"family":"Labiosa","given":"W.","email":"","affiliations":[],"preferred":false,"id":414187,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leckie, J.","contributorId":105521,"corporation":false,"usgs":true,"family":"Leckie","given":"J.","email":"","affiliations":[],"preferred":false,"id":414190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shachter, R.","contributorId":10988,"corporation":false,"usgs":true,"family":"Shachter","given":"R.","email":"","affiliations":[],"preferred":false,"id":414186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Freyberg, D.","contributorId":96079,"corporation":false,"usgs":true,"family":"Freyberg","given":"D.","email":"","affiliations":[],"preferred":false,"id":414189,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rytuba, J.","contributorId":70180,"corporation":false,"usgs":true,"family":"Rytuba","given":"J.","affiliations":[],"preferred":false,"id":414188,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70161786,"text":"70161786 - 2005 - Prey vulnerability to peacock cichlids and largemouth bass based on predator gape and prey body depth","interactions":[],"lastModifiedDate":"2016-01-06T09:47:10","indexId":"70161786","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3896,"text":"Proceedings of the Southeastern Association of Fish and Wildlife Agencies","active":true,"publicationSubtype":{"id":10}},"title":"Prey vulnerability to peacock cichlids and largemouth bass based on predator gape and prey body depth","docAbstract":"The interaction of prey fish body depth and predator gape size may produce prey assemblages dominated by invulnerable prey and excessive prey-to-predator biomass ratios. Peacock cichlids (Cichla ocellaris) were stocked into southeast Florida canals to consume excess prey fish biomass, particularly spotted tilapia (Tilapia mariae). The ecomorphologically similar largemouth bass (Micropterus salmoides) was already present in the canals. We present relations of length-specific gape size for peacock cichlids and largemouth bass. Both predators have broadly overlapping gape size, but largemouth bass ?126 mm total length have slightly larger gape sizes than peacock cichlids of the same length. Also, we experimentally tested the predictions of maximum prey size for peacock cichlids and determined that a simple method of measuring gape size used for largemouth bass also is appropriate for peacock cichlids. Lastly, we determined relations of body depth and length of prey species to investigate relative vulnerability. Using a simple predator-prey model and length frequencies of predators and bluegill (Lepomis macrochirus), redear sunfish (Lepomis microlophus), and spotted tilapia prey, we documented that much of the prey biomass in southeast Florida canals is unavailable for largemouth bass and peacock cichlid predation.
","language":"English","publisher":"Southeastern Association of Fish and Wildlife Agencies","usgsCitation":"Hill, J., Nico, L.G., Cichra, C.E., and Gilbert, C.R., 2005, Prey vulnerability to peacock cichlids and largemouth bass based on predator gape and prey body depth: Proceedings of the Southeastern Association of Fish and Wildlife Agencies, v. 58, p. 47-56.","productDescription":"10 p.","startPage":"47","endPage":"56","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":313903,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":313902,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.seafwa.org/html/proceedings/index.php?article=3822&key=2004&page=1#details"}],"country":"United 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