Criticisms biologically unwarranted and analytically irrelevant: Reply to Rominger et al.
Louis C. Bender, M.E. Weisenberger
2009, Journal of Wildlife Management (73) 806-810
The criticisms of Rominger et al. (2008) of our retrospective analysis of desert bighorn sheep (DBS; Ovis canadensis mexicana) dynamics in the San Andres Mountains of south-central New Mexico, USA, contained many biological errors and analytical oversights. Herein, we show that Rominger et al. (2008) 1) overstated both magnitude and...
Erosional history of Cape Halkett and contemporary monitoring of bluff retreat, Beaufort Sea coast, Alaska
Benjamin M. Jones, Christopher D. Arp, Richard A. Beck, Guido Grosse, James M. Webster, Frank E. Urban
2009, Polar Geography (32) 129-142
Cape Halkett is located along the Beaufort Sea at the end of a low-lying tundra landscape. The area has been subject to major modifications over the last century as a result of erosion and migration of the coastline inland. Long-term mean annual erosion rates (1955-2009) for the entire cape are...
Modeling nitrate-nitrogen load reduction strategies for the des moines river, iowa using SWAT
K. E. Schilling, C.F. Wolter
2009, Environmental Management (44) 671-682
The Des Moines River that drains a watershed of 16,175 km2 in portions of Iowa and Minnesota is impaired for nitrate-nitrogen (nitrate) due to concentrations that exceed regulatory limits for public water supplies. The Soil Water Assessment Tool (SWAT) model was used to model streamflow and nitrate loads and evaluate...
Modeling species occurrence dynamics with multiple states and imperfect detection
D.I. MacKenzie, J.D. Nichols, M.E. Seamans, R. J. Gutierrez
2009, Ecology (90) 823-835
Recent extensions of occupancy modeling have focused not only on the distribution of species over space, but also on additional state variables (e.g., reproducing or not, with or without disease organisms, relative abundance categories) that provide extra information about occupied sites. These biologist-driven extensions are characterized by ambiguity in both...
The Asian clam Corbicula fluminea as a biomonitor of trace element contamination: Accounting for different sources of variation using an hierarchical linear model
W. A. Shoults-Wilson, J.T. Peterson, J. M. Unrine, J. Rickard, M.C. Black
2009, Environmental Toxicology and Chemistry (28) 2224-2232
In the present study, specimens of the invasive clam, Corbicula fluminea, were collected above and below possible sources of potentially toxic trace elements (As, Cd, Cr, Cu, Hg, Pb, and Zn) in the Altamaha River system (Georgia, USA). Bioaccumulation of these elements was quantified, along with environmental (water and sediment)...
Russian eruption warning systems for aviation
Christina A. Neal, Olga Girina, Sergey Senyukov, Alexander Rybin, Jeffery M. Osiensky, Pavel Izbekov, Gail Ferguson
2009, Natural Hazards (51) 245-262
More than 65 potentially active volcanoes on the Kamchatka Peninsula and the Kurile Islands pose a substantial threat to aircraft on the Northern Pacific (NOPAC), Russian Trans-East (RTE), and Pacific Organized Track System (PACOTS) air routes. The Kamchatka Volcanic Eruption Response Team (KVERT) monitors and reports on volcanic hazards to...
Microseismicity at the North Anatolian Fault in the Sea of Marmara offshore Istanbul, NW Turkey
Fatih Bulut, Marco Bohnhoff, William L. Ellsworth, Mustafa Aktar, Georg Dresen
2009, Journal of Geophysical Research B: Solid Earth (114) 1-16
The North Anatolian Fault Zone (NAFZ) below the Sea of Marmara forms a “seismic gap” where a major earthquake is expected to occur in the near future. This segment of the fault lies between the 1912 Ganos and 1999 İzmit ruptures and is the only NAFZ segment that has not...
The morphology and distribution of submerged reefs in the Maui-Nui Complex, Hawaii: New insights into their evolution since the Early Pleistocene
Iain D.E. Faichney, James M. Webster, David A. Clague, Chris Kelley, Bruce Applegate, James G. Moore
2009, Marine Geology (265) 130-145
Reef drowning and backstepping have long been recognised as reef responses to sea-level rise on subsiding margins. During the Late Pleistocene (~500–14 ka) Hawaiian reefs grew in response to rapid subsidence and 120 m 100 kyr sea-level cycles, with recent work on the submerged drowned reefs around the...
Offshore double-planed shallow seismic zone in the NE Japan forearc region revealed by sP depth phases recorded by regional networks
S.S.N. Gamage, N. Umino, A. Hasegawa, S. H. Kirby
2009, Geophysical Journal International (178) 195-214
We detected the sP depth phase at small epicentral distances of about 150 km or more in the seismograms of shallow earthquakes in the NE Japan forearc region. The focal depths of 1078 M > 3 earthquakes that occurred from 2000 to 2006 were precisely determined using the time delay...
Nesting ecology of greater sage-grouse Centrocercus urophasianus at the eastern edge of their historic distribution
K. M. Herman-Brunson, K. C. Jensen, N. W. Kaczor, C. C. Swanson, M. A. Rumble, R. W. Klaver
2009, Wildlife Biology (15) 237-246
Greater sage-grouse Centrocercus urophasianus populations in North Dakota declined approximately 67% between 1965 and 2003, and the species is listed as a Priority Level 1 Species of Special Concern by the North Dakota Game and Fish Department. The habitat and ecology of the species at the eastern edge of its historical range...
A formal framework for scenario development in support of environmental decision-making
M. Mahmoud, Yajing Liu, H. Hartmann, S. Stewart, T. Wagener, D. Semmens, R. Stewart, H. Gupta, D. Dominguez, F. Dominguez, D. Hulse, R. Letcher, Brenda Rashleigh, C. Smith, R. Street, J. Ticehurst, M. Twery, Delden H. van, R. Waldick, D. White, L. Winter
2009, Environmental Modelling and Software (24) 798-808
Scenarios are possible future states of the world that represent alternative plausible conditions under different assumptions. Often, scenarios are developed in a context relevant to stakeholders involved in their applications since the evaluation of scenario outcomes and implications can enhance decision-making activities. This paper reviews the state-of-the-art of scenario development...
Hydrodynamic modeling of tsunamis from the Currituck landslide
E.L. Geist, P.J. Lynett, J.D. Chaytor
2009, Marine Geology (264) 41-52
Tsunami generation from the Currituck landslide offshore North Carolina and propagation of waves toward the U.S. coastline are modeled based on recent geotechnical analysis of slide movement. A long and intermediate wave modeling package (COULWAVE) based on the non-linear Boussinesq equations are used to simulate the tsunami. This model includes...
The glacial/deglacial history of sedimentation in Bear Lake, Utah and Idaho
J. G. Rosenbaum, C.W. Heil Jr.
2009, Special Paper of the Geological Society of America 247-261
Bear Lake, in northeastern Utah and southern Idaho, lies in a large valley formed by an active half-graben. Bear River, the largest river in the Great Basin, enters Bear Lake Valley ???15 km north of the lake. Two 4-m-long cores provide a lake sediment record extending back ???26 cal k.y....
Assessing spatial uncertainty in reservoir characterization for carbon sequestration planning using public well-log data: A case study
E.R. Venteris, K.M. Carter
2009, Environmental Geosciences (16) 211-234
Mapping and characterization of potential geologic reservoirs are key components in planning carbon dioxide (CO2) injection projects. The geometry of target and confining layers is vital to ensure that the injected CO2 remains in a supercritical state and is confined to the target layer. Also, maps of injection volume (porosity)...
Chapter 3 - Phenomenology of tsunamis: Statistical properties from generation to runup
Eric L. Geist
2009, Advances in Geophysics (51) 107-169
Observations related to tsunami generation, propagation, and runup are reviewed and described in a phenomenological framework. In the three coastal regimes considered (near-field broadside, near-field oblique, and far field), the observed maximum wave amplitude is associated with different parts of the tsunami wavefield. The maximum amplitude in the near-field broadside...
Prediction of spectral acceleration response ordinates based on PGA attenuation
V. Graizer, E. Kalkan
2009, Earthquake Spectra (25) 39-69
Developed herein is a new peak ground acceleration (PGA)-based predictive model for 5% damped pseudospectral acceleration (SA) ordinates of free-field horizontal component of ground motion from shallow-crustal earthquakes. The predictive model of ground motion spectral shape (i.e., normalized spectrum) is generated as a continuous function of few parameters. The proposed...
Identifying and prioritizing ungulate migration routes for landscape-level conservation
H. Sawyer, M. J. Kauffman, R. M. Nielson, J. S. Horne
2009, Ecological Applications (19) 2016-2025
As habitat loss and fragmentation increase across ungulate ranges, identifying and prioritizing migration routes for conservation has taken on new urgency. Here we present a general framework using the Brownian bridge movement model (BBMM) that: (1) provides a probabilistic estimate of the migration routes of a sampled population, (2) distinguishes...
Estimation of the tectonic slip-rate from Quaternary lacustrine facies within the intraplate Albacete province (SE of Spain)
M. A. Rodriguez-Pascua, J. Bischoff, Victor H. Garduno-Monroy, R. Perez-Lopez, J. L. Giner-Robles, I. Israde-Alcántara, J. P. Calvo, Ross W. Williams
2009, Sedimentary Geology (222) 89-97
The Quaternary lacustrine basin of Cordovilla (CB) represents one of the most active tectonic areas of the Prebetic Zone (Albacete, SE of Spain). The Quaternary sedimentary deposits of this basin are mainly endoreic lacustrine carbonate and alluvial deposits, developed in a semi-arid climate (Pleistocene-present). The basin is a NW-SE-elongated graben...
Geotechnical properties of cemented sands in steep slopes
B.D. Collins, N. Sitar
2009, Journal of Geotechnical and Geoenvironmental Engineering (135) 1359-1366
An investigation into the geotechnical properties specific to assessing the stability of weakly and moderately cemented sand cliffs is presented. A case study from eroding coastal cliffs located in central California provides both the data and impetus for this study. Herein, weakly cemented sand is defined as having an unconfined...
Consistency between hydrological models and field observations: Linking processes at the hillslope scale to hydrological responses at the watershed scale
M.P. Clark, D.E. Rupp, R.A. Woods, Meerveld H. J. Tromp-van H. J., N.E. Peters, J.E. Freer
2009, Hydrological Processes (23) 311-319
The purpose of this paper is to identify simple connections between observations of hydrological processes at the hillslope scale and observations of the response of watersheds following rainfall, with a view to building a parsimonious model of catchment processes. The focus is on the well-studied Panola Mountain Research Watershed (PMRW),...
NOAA/West coast and Alaska Tsunami warning center Atlantic Ocean response criteria
P. Whitmore, C. Refidaff, M. Caropolo, V. Huerfano-Moreno, W. Knight, W. Sammler, A. Sandrik
2009, Science of Tsunami Hazards (28) 86-107
West Coast/Alaska Tsunami Warning Center (WCATWC) response criteria for earthquakesoccurring in the Atlantic and Caribbean basins are presented. Initial warning center decisions are based on an earthquake's location, magnitude, depth, distance from coastal locations, and precomputed threat estimates based on tsunami models computed from similar events. The new criteria will...
Seasonal shifts in shelter and microhabitat use of drymarchon couperi (eastern indigo snake) in Georgia
N.L. Hyslop, R.J. Cooper, J.M. Meyers
2009, Copeia (2009) 458-464
Drymarchon couperi (Eastern Indigo Snake), a threatened species of the southeastern Coastal Plain of the United States, has experienced population declines because of extensive habitat loss and degradation across its range. In Georgia and northern Florida, the species is associated with longleaf pine habitats that support Gopherus polyphemus (Gopher Tortoise)...
Effects of experimental water table and temperature manipulations on ecosystem CO2 fluxes in an Alaskan rich fen
M.R. Chivers, M.R. Turetsky, J. M. Waddington, J.W. Harden, A. D. McGuire
2009, Ecosystems (12) 1329-1342
Peatlands store 30% of the world's terrestrial soil carbon (C) and those located at northern latitudes are expected to experience rapid climate warming. We monitored growing season carbon dioxide (CO2) fluxes across a factorial design of in situ water table (control, drought, and flooded plots) and soil warming (control vs....
Probabilistic tsunami hazard assessment at Seaside, Oregon, for near-and far-field seismic sources
F.I. Gonzalez, E.L. Geist, B. Jaffe, U. Kanoglu, H. Mofjeld, C.E. Synolakis, V.V. Titov, D. Areas, D. Bellomo, D. Carlton, T. Horning, J. Johnson, J. Newman, T. Parsons, R. Peters, C. Peterson, G. Priest, A. Venturato, J. Weber, F. Wong, A. Yalciner
2009, Journal of Geophysical Research C: Oceans (114)
The first probabilistic tsunami flooding maps have been developed. The methodology, called probabilistic tsunami hazard assessment (PTHA), integrates tsunami inundation modeling with methods of probabilistic seismic hazard assessment (PSHA). Application of the methodology to Seaside, Oregon, has yielded estimates of the spatial distribution of 100- and 500-year maximum tsunami amplitudes,...
The contemporary cement cycle of the United States
A. Kapur, H. G. Van Oss, G. Keoleian, S.E. Kesler, A. Kendall
2009, Journal of Material Cycles and Waste Management (11) 155-165
A country-level stock and flow model for cement, an important construction material, was developed based on a material flow analysis framework. Using this model, the contemporary cement cycle of the United States was constructed by analyzing production, import, and export data for different stages of the cement cycle. The United...
