Suspended-sediment loads, reservoir sediment trap efficiency, and upstream and downstream channel stability for Kanopolis and Tuttle Creek Lakes, Kansas, 2008-10
Kyle E. Juracek
2011, Scientific Investigations Report 2011-5187
Continuous streamflow and turbidity data collected from October 1, 2008, to September 30, 2010, at streamgage sites upstream and downstream from Kanopolis and Tuttle Creek Lakes, Kansas, were used to compute the total suspended-sediment load delivered to and released from each reservoir as well as the sediment trap efficiency for...
Structural complexity, movement bias, and metapopulation extinction risk in dendritic ecological networks
Evan H. Campbell Grant
2011, Journal of the North American Benthological Society (30) 252-258
Spatial complexity in metacommunities can be separated into 3 main components: size (i.e., number of habitat patches), spatial arrangement of habitat patches (network topology), and diversity of habitat patch types. Much attention has been paid to lattice-type networks, such as patch-based metapopulations, but interest in understanding ecological networks of alternative...
Was pre–twentieth century sea level stable?
Thomas M. Cronin
2011, Eos, Transactions, American Geophysical Union (92) 455-456
Sea level rise (SLR) ranks high on the list of climate change issues because the expected acceleration from the current rate (about 3.1 millimeters per year) poses threats to coastal regions. Tide gauge, salt marsh, and archaeological records, and modeling of glacioisostatic adjustment (GIA) have led to the widely accepted...
Baseline and projected future carbon storage and greenhouse-gas fluxes in the Great Plains region of the United States
Michelle Bouchard, David Butman, Todd Hawbaker, Zhengpeng Li, Jinxun Liu, Shu-Guang Liu, Cory McDonald, Ryan R. Reker, Kristi Sayler, Benjamin Sleeter, Terry Sohl, Sarah Stackpoole, Anne Wein, Zhi-Liang Zhu
Zhi-Liang Zhu, editor(s)
2011, Professional Paper 1787
This assessment was conducted to fulfill the requirements of section 712 of the Energy Independence and Security Act (EISA) of 2007 and to improve understanding of carbon and greenhouse gas (GHG) fluxes in the Great Plains region in the central part of the United States. The assessment examined carbon storage,...
The role of remote sensing observations and models in hydrology: The science of evapotranspiration
Pamela Nagler
2011, Hydrological Processes (25) 3977-3978
Over 15 years ago, Morton (1994) summarized the state of evapotranspiration (ET) research pessimistically: ‘There have been few significant advances in our knowledge of evaporation on an environmental scale over the past four decades, a state of affairs linked to the current sterility of hydrology and related environmental sciences. Furthermore,...
Water quality of the Chokosna, Gilahina, Lakina Rivers, and Long Lake watershed along McCarthy Road, Wrangell-St. Elias National Park and Preserve, Alaska, 2007-08
Timothy P. Brabets, Robert T. Ourso, Matthew P. Miller, Anne M. D. Brasher
2011, Scientific Investigations Report 2011-5185
The Chokosna, Gilahina, and Lakina River basins, and the Long Lake watershed are located along McCarthy Road in Wrangell–St. Elias National Park and Preserve. The rivers and lake support a large run of sockeye (red) salmon that is important to the commercial and recreational fisheries in the larger Copper River....
Mineralogy, morphology, and textural relationships in coatings on quartz grains in sediments in a quartz-sand aquifer
Shouliang Zhang, Douglas B. Kent, David C. Elbert, Zhi Shi, James A. Davis, David R. Veblen
2011, Journal of Contaminant Hydrology (124) 57-67
Mineralogical studies of coatings on quartz grains and bulk sediments from an aquifer on Western Cape Cod, Massachusetts, USA were carried out using a variety of transmission electron microscopy (TEM) techniques. Previous studies demonstrated that coatings on quartz grains control the adsorption properties of these sediments. Samples for TEM characterization...
Mitigating by-catch of diamondback terrapins in crab pots
Kristen M. Hart, Larry B. Crowder
2011, Journal of Wildlife Management (75) 264-272
Chronic by‐catch of diamondback terrapins (Malaclemys terrapin) in blue crab (Callinectes sapidus) pots is a concern for terrapin conservation along the United States Atlantic and Gulf of Mexico coasts. Despite the availability of by‐catch reduction devices (BRDs) for crab pots, adoption of BRDs has not been mandated and by‐catch of...
Sedimentation and response to sea-level rise of a restored marsh with reduced tidal exchange: Comparison with a natural tidal marsh
W. Vandenbruwaene, T. Maris, Donald R. Cahoon, P. Meire, S. Temmerman
2011, Geomorphology (130) 115-126
Along coasts and estuaries, formerly embanked land is increasingly restored into tidal marshes in order to re-establish valuable ecosystem services, such as buffering against flooding. Along the Scheldt estuary (Belgium), tidal marshes are restored on embanked land by allowing a controlled reduced tide (CRT) into a constructed basin, through a...
Sediment infilling and wetland formation dynamics in an active crevasse splay of the Mississippi River delta
Donald R. Cahoon, David A. White, James C. Lynch
2011, Geomorphology (131) 57-68
Crevasse splay environments provide a mesocosm for evaluating wetland formation and maintenance processes on a decadal time scale. Site elevation, water levels, vertical accretion, elevation change, shallow subsidence, and plant biomass were measured at five habitats along an elevation gradient to evaluate wetland formation and development in Brant Pass Splay;...
Using observed postconstruction peak discharges to evaluate a hydrologic and hydraulic design model, Boneyard Creek, Champaign and Urbana, Illinois
Thomas M. Over, David T. Soong, Robert R. Holmes Jr.
2011, Scientific Investigations Report 2011-5176
Boneyard Creek—which drains an urbanized watershed in the cities of Champaign and Urbana, Illinois, including part of the University of Illinois at Urbana-Champaign (UIUC) campus—has historically been prone to flooding. Using the Stormwater Management Model (SWMM), a hydrologic and hydraulic model of Boneyard Creek was developed for the design of...
Model and parametric uncertainty in source-based kinematic models of earthquake ground motion
Stephen H. Hartzell, Arthur Frankel, Pengcheng Liu, Yuehua Zeng, Shariftur Rahman
2011, Bulletin of the Seismological Society of America (101) 2431-2452
Four independent ground-motion simulation codes are used to model the strong ground motion for three earthquakes: 1994 Mw 6.7 Northridge, 1989 Mw 6.9 Loma Prieta, and 1999 Mw 7.5 Izmit. These 12 sets of synthetics are used to make estimates of the variability in ground-motion predictions. In addition, ground-motion predictions...
Spatial distribution and risk factors of highly pathogenic avian influenza (HPAI) H5N1 in China
Vincent Martin, Dirk U. Pfeiffer, Xiaoyan Zhou, Xiangming Xiao, Diann J. Prosser, Fusheng Guo, Marius Gilbert
2011, PLoS Pathogens (7)
Highly pathogenic avian influenza (HPAI) H5N1 was first encountered in 1996 in Guangdong province (China) and started spreading throughout Asia and the western Palearctic in 2004–2006. Compared to several other countries where the HPAI H5N1 distribution has been studied in some detail, little is known about the environmental correlates of...
Modeling the potential impact of seasonal and inactive multi-aquifer wells on contaminant movement to public water-supply wells
R.L. Johnson, B.R. Clark, M.K. Landon, L. J. Kauffman, S. M. Eberts
2011, Journal of the American Water Resources Association (47) 588-596
Wells screened across multiple aquifers can provide pathways for the movement of surprisingly large volumes of groundwater to confined aquifers used for public water supply (PWS). Using a simple numerical model, we examine the impact of several pumping scenarios on leakage from an unconfined aquifer to a confined aquifer and...
Accounting for non-independent detection when estimating abundance of organisms with a Bayesian approach
Julien Martin, J. Andrew Royle, Darryl I. MacKenzie, Holly H. Edwards, Marc Kery, Beth Gardner
2011, Methods in Ecology and Evolution (2) 595-601
Summary1. Binomial mixture models use repeated count data to estimate abundance. They are becoming increasingly popular because they provide a simple and cost‐effective way to account for imperfect detection. However, these models assume that individuals are detected independently of each other. This...
Exchange of Groundwater and Surface-Water Mediated by Permafrost Response to Seasonal and Long Term Air Temperature Variation
Shemin Ge, Jeffrey McKenzie, Clifford Voss, Qingbai Wu
2011, Geophysical Research Letters (38)
Permafrost dynamics impact hydrologic cycle processes by promoting or impeding groundwater and surface water exchange. Under seasonal and decadal air temperature variations, permafrost temperature changes control the exchanges between groundwater and surface water. A coupled heat transport and groundwater flow model, SUTRA, was modified to simulate groundwater flow and heat...
A comparison of avian communities and habitat characteristics in floodplain forests associated with valley plugs and unchannelized streams
Aaron R. Pierce, Sammy L. King
2011, River Research and Applications (27) 1315-1324
Channelization of streams associated with floodplain forested wetlands has occurred extensively throughout the world and specifically in the southeastern United States. Channelization of fluvial systems alters the hydrologic and sedimentation processes that sustain these systems. In western Tennessee, channelization and past land-use practices have caused drastic geomorphic and hydrologic changes,...
Utah's geologic and geomorphic analogs to Mars—An overview for planetary exploration
Marjorie A. Chan, Kathleen Nicoll, Jens Ormö, Chris Okubo, Goro Komatsu
2011, Book chapter, Analogs for Planetary Exploration
Utah offers spectacular geologic features and valuable analog environments and processes for Mars studies. Horizontal strata of the Colorado Plateau are analogous to Mars because the overprint of plate tectonics is minimal, yet the effects of strong ground motion from earthquakes or impacts are preserved in the sedimentary record. The...
Quantifying the hydrological responses to climate change in an intact forested small watershed in southern China
Guo-Yi Zhou, Xiaohua Wei, Yiping Wu, Shu-Guang Liu, Yuhui Huang, Junhua Yan, Deqiang Zhang, Qianmei Zhang, Juxiu Liu, Ze Meng, Chunlin Wang, Guowei Chu, Shizhong Liu, Xu-Li Tang, Xiaodong Liu
2011, Global Change Biology (17) 3736-3746
Responses of hydrological processes to climate change are key components in the Intergovernmental Panel for Climate Change (IPCC) assessment. Understanding these responses is critical for developing appropriate mitigation and adaptation strategies for sustainable water resources management and protection of public safety. However, these responses are not well understood and little...
Northern goshawk monitoring in the western Great Lakes bioregion
Jason E. Bruggeman, David E. Andersen, James E. Woodford
2011, Journal of Raptor Research (45) 290-303
Uncertainties about factors affecting Northern Goshawk (Accipiter gentilis) ecology and the status of populations have added to the challenge of managing this species. To address data needs for determining the status of goshawk populations, Hargis and Woodbridge (2006) developed a bioregional monitoring protocol based on estimating occupancy. The...
An adaptive decision framework for the conservation of a threatened plant
Clinton T. Moore, Christopher J. Fonnesbeck, Katriona Shea, Kristopher J. Lah, Paul M. McKenzie, Lianne C. Ball, Michael C. Runge, Helen M. Alexander
2011, Journal of Fish and Wildlife Management (2) 247-261
Mead's milkweed Asclepias meadii, a long-lived perennial herb of tallgrass prairie and glade communities of the central United States, is a species designated as threatened under the U.S. Endangered Species Act. Challenges to its successful management include the facts that much about its life history is unknown, its age at...
Modelling community dynamics based on species-level abundance models from detection/nondetection data
Yuichi Yamaura, J. Andrew Royle, Kouji Kuboi, Tsuneo Tada, Susumu Ikeno, Shun’ichi Makino
2011, Journal of Applied Ecology (48) 67-75
1. In large‐scale field surveys, a binary recording of each species’ detection or nondetection has been increasingly adopted for its simplicity and low cost. Because of the importance of abundance in many studies, it is desirable to obtain inferences about abundance at species‐, functional group‐, and community‐levels from such binary data.2. We...
Comparing isotope signatures of prey fish: does gut removal affect δ13C or δ15N?
Steven R. Chipps, Mark J. Fincel, Justin A. VanDeHey, Andrew Wuestewald
2011, Journal of Freshwater Ecology (27) 55-62
Stable isotope analysis is a quick and inexpensive method to monitor the effects of food web changes on aquatic communities. Traditionally, whole specimens have been used when determining isotope composition of prey fish or age-0 recreational fishes. However, gut contents of prey fish could potentially alter isotope composition of the...
Migration delays caused by anthropogenic barriers: modeling dams, temperature, and success on migrating salmon smolts
Elizabeth A. Marschall, Martha E. Mather, Donna L. Parrish, Gary W. Allison, James R. McMenemy
2011, Ecological Applications (21) 3014-3031
Disruption to migration is a growing problem for conservation and restoration of animal populations. Anthropogenic barriers along migration paths can delay or prolong migrations, which may result in a mismatch with migration-timing adaptations. To understand the interaction of dams (as barriers along a migration path), seasonally changing environmental conditions, timing...
The role of adsorbed water on the friction of a layer of submicron particles
Charles G. Sammis, David A. Lockner, Ze’ev Reches
2011, Pure and Applied Geophysics (168) 2325-2334
Anomalously low values of friction observed in layers of submicron particles deformed in simple shear at high slip velocities are explained as the consequence of a one nanometer thick layer of water adsorbed on the particles. The observed transition from normal friction with an apparent coefficient near μ = 0.6...
