Persistence of the longnose darter (P. nasuta) in Lee Creek, Oklahoma
Michael R. Gatlin, James M. Long
2011, Proceedings of the Oklahoma Academy of Science (91) 11-14
The longnose darter Percina nasuta (Bailey) is one of Oklahoma’s rarest fish species (1) and is listed by the state as endangered. Throughout the rest of its range, which includes Missouri, Arkansas and the far eastern portion of Oklahoma, the longnose darter is classified as “rare” or “threatened” (2, 3,...
Seasonal productivity in a population of migratory songbirds: why nest data are not enough
Henry M. Streby, David E. Andersen
2011, Ecosphere (2) 1-15
Population models for many animals are limited by a lack of information regarding juvenile survival. In particular, studies of songbird reproductive output typically terminate with the success or failure of nests, despite the fact that adults spend the rest of the reproductive season rearing dependent fledglings. Unless fledgling survival does...
Responses of soil and water chemistry to mountain pine beetle induced tree mortality in Grand County, Colorado, USA
David W. Clow, Charles Rhoades, Jenny S. Briggs, Megan K. Caldwell, William M. Lewis Jr.
2011, Applied Geochemistry (26, Supplement) S174-S178
Pine forest in northern Colorado and southern Wyoming, USA, are experiencing the most severe mountain pine beetle epidemic in recorded history, and possible degradation of drinking-water quality is a major concern. The objective of this study was to investigate possible changes in soil and water chemistry in Grand County, Colorado...
Seafloor morphology and coral habitat variability in a volcanic environment: Kaloko-Honokohau National Park, Hawaii, USA
Ann E. Gibbs, Susan A. Cochran
2011, Book chapter, Seafloor geomorphology as benthic habitat; GeoHab atlas of seafloor geomorphic features and benthic habitats
Kaloko–Honokohau National Historical Park (KAHO) is one of three National Park lands along the leeward, west, or Kona, coast of the island of Hawaii, USA. The park includes 596 acres (2.4 km2) of submerged lands and marine resources within its official boundaries. The offshore region of KAHO, part of the...
Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
Christiana R. Czuba, Timothy J. Randle, Jennifer A. Bountry, Christopher S. Magirl, Jonathan A. Czuba, Christopher A. Curran, Christopher P. Konrad
Jeffrey J. Duda, Jonathan A. Warrick, Christopher S. Magirl, editor(s)
2011, Scientific Investigations Report 2011-5120-2
During and after the planned incremental removal of two large, century-old concrete dams between 2011 and 2014, the sediment-transport regime in the lower Elwha River of western Washington will initially spike above background levels and then return to pre-dam conditions some years after complete dam removal. Measurements indicate the upper...
Quantifying home range habitat requirements for bobcats (Lynx rufus) in Vermont, USA
Therese Donovan, Mark Freeman, Hanem Abouelezz, Kim Royar, Alan D. Howard, R. Mickey
2011, Biological Conservation (144) 2799-2809
We demonstrate how home range and habitat use analysis can inform landscape-scale conservation planning for the bobcat, Lynx rufus, in Vermont USA. From 2005 to 2008, we outfitted fourteen bobcats with GPS collars that collected spatially explicit locations from individuals every 4 h for 3–4 months. Kernel home range techniques were used to...
Cambarus (Puncticambarus) smilax, a new species of crayfish (Crustacea: Decapoda: Cambaridae) from the Greenbrier River basin of West Virginia
Zachary J. Loughman, Thomas P. Simon, Stuart A. Welsh
2011, Proceedings of the Biological Society of Washington (124) 99-111
Cambarus (Puncticambarus) smilax is a stream-dwelling crayfish that appears to be endemic to the Greenbrier River basin in the Valley and Ridge province of West Virginia. Within the Greenbrier system it occurs primarily in tributaries to the Greenbrier mainstem, with stable populations in the East and West Fork, and Thorny, Knapp, and Deer...
Breeding bird response to partially harvested riparian management zones
Christopher J. Chizinski, Anna Peterson, JoAnn Hanowski, Charles R. Blinn, Bruce C. Vondracek, Gerald Niemi
2011, Forest Ecology and Management (261) 1892-1900
We compared avian communities among three timber harvesting treatments in 45-m wide even-age riparian management zones (RMZs) placed between upland clearcuts and along one side of first- or second-order streams in northern Minnesota, USA. The RMZs had three treatments: (1) unharvested, (2) intermediate residual basal area (RBA) (targeted goal 11.5 m2/ha,...
Patterns of acoustical activity of bats prior to and following White-nose Syndrome occurrence
W. Mark Ford, Eric R. Britzke, Christopher A. Dobony, Jane L. Rodrigue, Joshua B. Johnson
2011, Journal of Fish and Wildlife Management (2) 125-134
White-nose Syndrome (WNS), a wildlife health concern that has decimated cave-hibernating bat populations in eastern North America since 2006, began affecting source-caves for summer bat populations at Fort Drum, a U.S. Army installation in New York in the winter of 2007–2008. As regional die-offs of bats became evident, and Fort...
Aeromagnetic anomalies over faulted strata
V. J. S. Grauch, Mark R. Hudson
2011, The Leading Edge (30) 1242-1252
High-resolution aeromagnetic surveys are now an industry standard and they commonly detect anomalies that are attributed to faults within sedimentary basins. However, detailed studies identifying geologic sources of magnetic anomalies in sedimentary environments are rare in the literature. Opportunities to study these sources have come from well-exposed sedimentary basins of...
Detection of coastal and submarine discharge on the Florida Gulf Coast with an airborne thermal-infrared mapping system
Ellen Raabe, David Stonehouse, Kristin Ebersol, Kathryn Holland, Lisa Robbins
2011, Professional Geologist (48) 42-49
Along the Gulf Coast of Florida north of Tampa Bay lies a region characterized by an open marsh coast, low topographic gradient, water-bearing limestone, and scattered springs. The Floridan aquifer system is at or near land surface in this region, discharging water at a consistent 70-72°F. The thermal contrast between...
2009 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park
Kristi Morris, Alisa Mast, Greg Wetherbee, Jill Baron, Curt Taipale, Tamara Blett, David Gay, Eric Richer
2011, Natural Resource Report NPS/NRSS/ARD/NRR-2011/442
A trans-dimensional Bayesian Markov chain Monte Carlo algorithm for model assessment using frequency-domain electromagnetic data
Burke J. Minsley
2011, Geophysical Journal International (187) 252-272
A meaningful interpretation of geophysical measurements requires an assessment of the space of models that are consistent with the data, rather than just a single, ‘best’ model which does not convey information about parameter uncertainty. For this purpose, a trans-dimensional Bayesian Markov chain Monte Carlo (MCMC) algorithm is developed for...
Functional ecology of free-living nitrogen fixation: A contemporary perspective
Sasha C. Reed, Cory C. Cleveland, Alan R. Townsend
2011, Annual Review of Ecology, Evolution, and Systematics (42) 489-512
Nitrogen (N) availability is thought to frequently limit terrestrial ecosystem processes, and explicit consideration of N biogeochemistry, including biological N2 fixation, is central to understanding ecosystem responses to environmental change. Yet, the importance of free-living N2 fixation—a process that occurs on a wide variety of substrates, is nearly ubiquitous in...
Evaluation of offshore stocking of Lake Trout in Lake Ontario
B.F. Lantry, R. O'Gorman, T.G. Strang, J.R. Lantry, M.J. Connerton, T. Schanger
2011, North American Journal of Fisheries Management (31) 671-682
Restoration stocking of hatchery-reared lake trout Salvelinus namaycush has occurred in Lake Ontario since 1973. In U.S. waters, fish stocked through 1990 survived well and built a large adult population. Survival of yearlings stocked from shore declined during 1990–1995, and adult numbers fell during 1998–2005. Offshore stocking of lake trout...
Influence of dreissenid mussels on catchability of benthic fishes in bottom trawls
Patrick M. Kocovsky, Martin A. Stapanian
2011, Transactions of the American Fisheries Society (140) 1565-1573
Inferring trends in true abundance of fish populations from catch per unit effort data requires either the knowledge of capture probability or the assumption that it is constant, both of which are unlikely contingencies. We developed and validated an index of catchability (a proxy measure for capture probability) from a...
Spawning habitat unsuitability: an impediment to cisco rehabilitation in Lake Michigan?
Charles P. Madenjian, Edward S. Rutherford, Marc A. Blouin, Bryan J. Sederberg, Jeff R. Elliott
2011, North American Journal of Fisheries Management (31) 905-913
The cisco Coregonus artedi was one of the most important native prey fishes in Lake Michigan and in the other four Laurentian Great Lakes. Most of the cisco spawning in Lake Michigan was believed to have occurred in Green Bay. The cisco population in Lake Michigan collapsed during the 1950s,...
Scientific drilling into the San Andreas Fault Zone - an overview of SAFOD's first five years
Mark Zoback, Stephen Hickman, William Ellsworth, SAFOD Science Team
2011, Scientific Drilling (11) 14-28
The San Andreas Fault Observatory at Depth (SAFOD) was drilled to study the physical and chemical processes controlling faulting and earthquake generation along an active, plate-bounding fault at depth. SAFOD is located near Parkfield, California and penetrates a section of the fault that is moving due to a combination of...
Seasonally dynamic diel vertical migrations of Mysis diluviana, coregonine fishes, and siscowet lake trout in the pelagia of western Lake Superior
Tyler D. Ahrenstorff, Thomas R. Hrabik, Jason D. Stockwell, Daniel L. Yule, Greg G. Sass
2011, Transactions of the American Fisheries Society (140) 1504-1520
Diel vertical migrations are common among many aquatic species and are often associated with changing light levels. The underlying mechanisms are generally attributed to optimizing foraging efficiency or growth rates and avoiding predation risk (μ). The objectives of this study were to (1) assess seasonal and interannual changes in vertical...
Representation of bidirectional ground motions for design spectra in building codes
Jonathan P. Stewart, Norman A. Abrahamson, Gail M. Atkinson, Jack W. Beker, David M. Boore, Yousef Bozorgnia, Kenneth W. Campbell, Craig D. Comartin, I.M. Idriss, Marshall Lew, Michael Mehrain, Jack P. Moehle, Farzad Naeim, Thomas A. Sabol
2011, Earthquake Spectra (27) 927-937
The 2009 NEHRP Provisions modified the definition of horizontal ground motion from the geometric mean of spectral accelerations for two components to the peak response of a single lumped mass oscillator regardless of direction. These maximum-direction (MD) ground motions operate under the assumption that the dynamic properties of the structure...
Regional correlations of VS30 averaged over depths less than and greater than 30 meters
David M. Boore, Eric M. Thompson, Heloise Cadet
2011, Bulletin of the Seismological Society of America (101) 3046-3059
Using velocity profiles from sites in Japan, California, Turkey, and Europe, we find that the time-averaged shear-wave velocity to 30 m (VS30), used as a proxy for site amplification in recent ground-motion prediction equations (GMPEs) and building codes, is strongly correlated with average velocities to depths less than 30 m...
Clinical pathology results from cranes with experimental West Nile Virus infection
Glenn H. Olsen
2011, Book, Proceedings of the Association of Avian Veterinarians
Sandhill cranes (Grus canadensis) were vaccinated for and then challenged with West Nile virus. Resulting titers demonstrated protection in the vaccinated-challenged cranes as compared to the unvaccinated-challenged cranes. Clinical pathology results showed challenged cranes, whether vaccinated or not, had a decrease in their hematocrits and an elevation of 2.5-fold in...
Estimating unknown input parameters when implementing the NGA ground-motion prediction equations in engineering practice
James Kaklamanos, Laurie G. Baise, David M. Boore
2011, Earthquake Spectra (27) 1219-1235
The ground-motion prediction equations (GMPEs) developed as part of the Next Generation Attenuation of Ground Motions (NGA-West) project in 2008 are becoming widely used in seismic hazard analyses. However, these new models are considerably more complicated than previous GMPEs, and they require several more input parameters. When employing the NGA...
Testing long-period ground-motion simulations of scenario earthquakes using the Mw 7.2 El Mayor-Cucapah mainshock: Evaluation of finite-fault rupture characterization and 3D seismic velocity models
Robert W. Graves, Brad T. Aagaard
2011, Bulletin of the Seismological Society of America (101) 895-907
Using a suite of five hypothetical finite-fault rupture models, we test the ability of long-period (T>2.0 s) ground-motion simulations of scenario earthquakes to produce waveforms throughout southern California consistent with those recorded during the 4 April 2010 Mw 7.2 El Mayor-Cucapah earthquake. The hypothetical ruptures are generated using the methodology proposed by <a...
Using the 2011 Mw9.0 Tohoku earthquake to test the Coulomb stress triggering hypothesis and to calculate faults brought closer to failure
Shinji Toda, Jian Lin, Ross S. Stein
2011, Earth, Planets and Space (63) 725-730
The 11 March 2011 Tohoku Earthquake provides an unprecedented test of the extent to which Coulomb stress transfer governs the triggering of aftershocks. During 11-31 March, there were 177 aftershocks with focal mechanisms, and so the Coulomb stress change imparted by the rupture can be resolved on the aftershock nodal...
